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Samsung Service Manual SGH-D428

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					                GSM TELEPHONE
                SGH-D428




GSM TELEPHONE                  CONTENTS


                  1.   Specification

                  2.   Flow Chart of Troubleshooting

                  3.   Exploded Views and Parts List

                  4.   Electrical Parts List

                  5.   Block Diagrams

                  6.   PCB Diagrams
                                                                    ⓒ Samsung Electronics Co.,Ltd. Dec. 2004
This Service Manual is a property of Samsung Electronics Co.,Ltd.     Printed in Korea.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.                                    Code No.: GH68-06337A
                                                                      BASIC.
1. SGH-D428 Specification

1. GSM General Specification

                            GSM900             E G S M 9 00           DCS1800
                                                                                         PC S1900
                            Ph ase 1            Ph ase 2              Ph ase 1

Freq. Ban d [M Hz ]        89 0~ 91 5           88 0~ 91 5           1 71 0~ 1 78 5     18 50 ~1 91 0
Upl in k/Downl in k        93 5~ 96 0           92 5~ 96 0           1 80 5~ 1 88 0     19 30 ~1 99 0

                                                 0 ~ 1 24 &
  A RF C N ra n g e          1 ~ 1 24                                 51 2~8 85          5 12 ~ 8 10
                                                9 75 ~ 10 23

 Tx/Rx spaci ng              45 MHz               45 MHz                95 MHz            8 0M H z

 Mod. Bit rat e/         270.833kbp s         2 70 . 8 33 k b ps    270.833kbp s       27 0. 83 3kb p s
   Bit Period              3.692us               3.692us              3.692us             3. 69 2u s

     Tim e Sl ot
                            576.9us              576.9us              576.9us            57 6. 9u s
  P eri od /F rame
                            4. 61 5m s           4 .6 15 m s          4. 61 5ms          4. 61 5ms
       Peri od

   Modu lat ion            0. 3GM SK            0. 3GM S K            0. 3GM SK          0.3GMSK


    M S Power          3 3d B m ~ 13 dBm 33dBm~5dBm                3 0d B m ~ 0 d Bm   30 d Bm ~0d Bm

  P ow e r Cl a ss       5pcl ~ 15pcl          5pcl ~ 19pcl          0pcl ~ 15pcl       0pcl ~ 15pcl

   S e nsi ti vit y        -102dBm              - 10 2d B m           -100dBm            -100dBm

   TDM A Mu x                   8                     8                    8                  8

   Cell Radiu s              35 Km                 35 Km                 2Km                  -




                                                   1-1
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                      This Document can not be used without Samsung's authorization
SGH-D428 Specification




2. GSM TX power class


   TX Power        GSM900              TX Power         DCS1800             TX Power       PCS1900
  control level                       control level                        control level

        5         33±2dBm                   0           30±3dBm                  0         30±3dBm

        6         31±2dBm                   1           28±3dBm                  1         28±3dBm

        7         29±2dBm                   2           26±3dBm                  2         26±3dBm

        8         27±2dBm                   3           24±3dBm                  3         24±3dBm

        9         25±2dBm                   4           22±3dBm                  4         22±3dBm

       10         23±2dBm                   5           20±3dBm                  5         20±3dBm

       11         21±2dBm                   6           18±3dBm                  6         18±3dBm

       12         19±2dBm                   7           16±3dBm                  7         16±3dBm

       13         17±2dBm                   8           14±3dBm                  8         14±3dBm

       14         15±2dBm                   9           12±4dBm                  9         12±4dBm

       15         13±2dBm                   10          10±4dBm                 10         10±4dBm

       16         11±2dBm                   11           8±4dBm                 11         8±4dBm

       17          9±2dBm                   12           6±4dBm                 12         6±4dBm

       18          7±2dBm                   13           4±4dBm                 13         4±4dBm

       19          5±2dBm                   14           2±5dBm                 14         2±5dBm

                                            15           0±5dBm                 15         0±5dBm




                                                  1-2

                         SAMSUNG Proprietary-Contents may change without notice
                     This Document can not be used without Samsung's authorization
2. SGH-D428 Flow Chart of Troubleshooting

1.Baseband
1. Power ON

     'Power On' does not work

                    Yes



         Check the current            No
         consumption more                         Download again
            than 100mA



                    Yes


          Check the VBAT              No
          more than 3.3V                        Charge the Battery


                    Yes



           Check the pin              No
           11 of U102 is                         Check the C117
          more than 2.8V



                    Yes


           U102 pin 33,39             No             U102 pin 9        No
              = 2.8V                                   = 1.8V                  Check U102 and C116


                    Yes                        Yes




           Check the clock
           signal at pin4 of
               OSC801                   No    Check the clock generation
            Freq=13MHz ?                                circuit
           Vrms≥300mV ?
            Vpp is around
              900mVpp ?




                    Yes

      Check the initial operation




                 END




                                                 2-1
                       SAMSUNG Proprietary-Contents may change without notice
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SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams




2. Initial
                          Initial Failure
                                   Yes


                     Check the signal at the
                        pin 21 of U102 is                No
                     "High" when the phone                          Check the pin 46,20 and Q103
                            is boot on


                                   Yes


                      Check the key metrix               No          Check the key program and
                          of the U601                                         the key pcb

                                   Yes

                      Check the VCCD,VCC_1.8A            No        Check the soldered status of U601,
                             of U601                                            OSC601

                                   Yes

                        Check the vccd of                No          Check the soldered status of
                       U601 is around 2.8V                                   U601,osc601

                                   Yes

              Check LCD connector CN201 in the main
                   PBA and the FPCB connector

                                   Yes

                               END

3. Sim Part
                        Phone can't access SIM card

                                            Yes

                             Check the pin 1 of               No        Check the circuit related to
                            CN101. voltage 3V ?                                    U102
                                            Yes


                                Check the SIM
                             connector's (CN101)              No
                              connection to SIM                         Resolder or change CN101
                                    card


                                            Yes

                       Check the circuit around CN101         No       Check the related circuit of
                                    input
                                  circuitry                                      CN101

                                            Yes
                       Check the circuit around U601          No
                                  output                               Check the related circuit of
                        and vlotage supply circuitry                         U601 and U102

                                            Yes

                                      END
                                                   2-2

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                     This Document can not be used without Samsung's authorization
                                      SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams




4. Charging Part


              Abnormal charging part
                          Yes

               Check the pin 17, 18                No
                   of CN300 is                            Replace TA,Check CN300-1
                   TA_VEXT>4?

                          Yes


                Check the pin 2 of                 No
                  U101 is "low"?                               Check the U101


                          Yes

                Check the pin 3 of                 No
                  Q101 is "low"?                               Check the Q101

                          Yes


               Check the pin 5 of                  No
                                                               Check the U101
               U101 is "3.2~4.2V"?


                          Yes




               Check the ICHRG is
               1V(during charging)                 No
                                                          Resolder or change R111
                   and around
              180mV(full charging)?



                          Yes
                       END




                                             2-3

               SAMSUNG Proprietary-Contents may change without notice
              This Document can not be used without Samsung's authorization
SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams




5. Microphone Part

                   Microphone does not work
                                  Yes


                       check the soldered               No
                                                                  Resolder microphone
                     status of microphone.

                                  Yes


                                                                  Resolder or change
                      Check the reference             No
                      voltage on mic path                    R413,C420,R414,C410,R411,R40
                         C411 ≒ 2.5 V
                                                                           8


                                  Yes

                                                        No
                       Is microphone ok?                              Check U701

                                  Yes

                             END




6. Speaker Part

                    Speaker does not work

                               Yes


                     Check the FPCB from                No     Retry connection the FPCB from
                       CN201 to CN11                                   CN201 to CN11


                               Yes


                     Check the PIN 4 of                 No       Check U401 and the audio
                       U401='High' ?                                   path of U701


                                Yes

                                                        No    Check componants near the U402
                       Is speaker ok?
                                                                  and control line of U402

                                Yes

                                                        No
                       Is speaker ok?                                 Change Speaker

                               Yes

                            END



                                                  2-4

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                     This Document can not be used without Samsung's authorization
                                                   SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams




2.RF
1. EGSM RX

                                                                                       CONTINUOUS RX ON
                                                                                        RF INPUT : 62CH
       NORMAL CONDITION               NO                   CHECK
                                                                                         AMP : -50dBm
       catch the channel?                       ANT1001,L1002 contact ?


                    YES
          F1001 CHECK                 NO             C1003, C1006
       pin13 ≥ -65dBm ?                            resolder or change


                    YES

          F1001 CHECK                 NO                   F1001

       pin1, 2 ≥ -65dBm ?                           resolder or change


                     YES

          U1002 CHECK                 NO          C1005,C1006,L1003

       pin20,21 ≥ -65dBm ?                         resolder or change


                    YES

             U902               NO         U102 pin39, C112

        pin 26,32: 2.8V ?                  change or resolder


                    YES



          U903 CHECK
                               NO             OSC801
         pin 7 : 13MHz ?
                                       change or resolder
         Vp-p : 950mV?



                    YES


              U902
                                 NO                 U902
         pin1,2,5,6 Vp-p
                                              resolder or change
           : 120mV ?



                    YES
           U702,R701

        resolder or change




                                                                   2-5

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                       This Document can not be used without Samsung's authorization
SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams




2. DCS RX


                                                                                        CONTINUOUS RX ON
                                                                                            RF INPUT : 698CH
            NORMAL CONDITION                  NO                  CHECK                      AMP : -50dBm
            catch the channel?                           ANT1001,L1002 contact ?


                         YES

               F1001 CHECK                    NO                 C1008,C1009

            pin13 ≥ -65dBm ?                                 resolder or change


                          YES
               F1001 CHECK                    NO                    F1001

            pin3, 4 ≥ -65dBm ?                               resolder or change


                         YES

               U902 CHECK                     NO           C1008,C1009,L1004

            pin21,22 ≥ -65dBm ?                             resolder or change


                          YES

                  U902               NO              U102 pin39, C112

             pin 26,32: 2.8V ?                       change or resolder



                          YES



               U903 CHECK
                                    NO                  OSC801
              pin 7 : 13MHz ?
                                                   change or resolder
              Vp-p : 950mV?



                         YES


                   U902
                                         NO                  U902
              pin1,2,5,6 Vp-p
                                                       resolder or change
                : 120mV ?



                          YES
                U703,R704

             resolder or change




                                                                            2-6

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                                                      SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams




3. PCS RX



                                                                                        CONTINUOUS RX ON
                                                                                         RF INPUT : 660CH
        NORMAL CONDITION                 NO                  CHECK
                                                                                           AMP : -50dBm
        catch the channel?                          ANT1001,L1002 contact ?


                       YES

            F1001 CHECK                  NO              C1012, F1013

        pin13 ≥ -65dBm ?                               resolder or change


                       YES

        F1001,F1002 CHECK                NO            F1001,F1002,R1011

         pin6 ≥ -65dBm ?                               resolder or change


                       YES

             U902 CHECK                  NO         C1012,F1002,C1013,R1011,L1006

       pin16, 17 ≥ -65dBm ?                                 resolder or change


                       YES

                U902               NO           U102 pin39, C112

         pin 26,32: 2.8V ?                      change or resolder



                       YES



             U903 CHECK
                                  NO               OSC801
            pin 7 : 13MHz ?
                                              change or resolder
            Vp-p : 950mV?



                        YES


                 U902
                                    NO                  U902
            pin1,2,5,6 Vp-p
                                                  resolder or change
              : 120mV ?



                       YES

              U704,R705

         resolder or change




                                                                     2-7

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                         This Document can not be used without Samsung's authorization
SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams




 4. EGSM TX

              F1001 pin 12 :
                                       NO               F1001                NO          U701,U702                        CONTINUS TX ON CONDITION
                about 2~3
                                                    pin13 : 2.8 V?                     check & change                       TX POWER DAC: 550 CODE APPLIED

                                                                                                                                       CH : 62
                                                               YES
                                                                                                                                    RBW : 100KHz
                       YES
                                                                                                                                    VBW : 100KHz
               F1003, C1003                          U1001 pin9 :
                                                                                                                                     SPAN : 10MHz
               check&change        NO               about 4~5dBm?
                                                                                                                                   REF LEV. : 10dBm

                                                               YES                                                                    ATT. : 20dB

                                                     F1001,C1015

                                                    check & change




                               U1001              NO        BATTERY, U102

                         pin 5 : 3.7 V?                     check & change


                                   YES

                               U1001              NO            U701

                         pin 6 : 1.2V ?                         check


                                   YES



          NO                U1001 pin7

                        about : -5dBm ?




                                       YES

                               U1001              NO
                            pin 3 : 3V?


                                       YES
                               U1001                    U701

                       change or resolder              check




                                                    U902
                                 NO
                                               pin14,26,32 : 2.

                                                     8V ?


                                                               YES



                                                                          U903
U102 pin39,C112                                                                               NO          OSC801
                                                                     pin7 : 13MHz ?
change or resolder                                                                                   change or resolder
                                                                     Vp-p : 950mV?



                                                                              YES


                                                                          U902
                                                     NO
                                                                     pin1,2,4,5:100m




                                                                                 YES

                                             U701
                                                                          U902
                                       change or resolder
                                                                  change or resolder



                                                                                             2-8

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                                          This Document can not be used without Samsung's authorization
                                                                                  SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams




  5. DCS/PCS TX

              F1001 pin 10 :
                                       NO                    F1001               NO        U701,U703,U704
                                                                                                                               CONTINUOUS TX ON CONDITION
                 about 2~3
                                                        pin9 : 2.8 V?                                                           CH : 698CH(DCS),660CH(PCS)
                                                                                            check & change
                                                                                                                              TX POWER CODE: 350 CODE Aplied
                                                                    YES                                                               RBW : 100KHz
                       YES
                                                                                                                                      VBW : 100KHz
                                                       U1001 pin11 :
               F1003, C1003                                                                                                           SPAN : 10MHz
                                    NO                 about 4~5dBm?
               check&change                                                                                                          REF LEV. : 10dBm
                                                                    YES                                                                ATT. : 20dB

                                                             F1001

                                                       check & change




                               U1001                   NO      BATTERY, U102

                        pin 4,5 : 3.7 V?                       check & change



                                    YES


                               U1001               NO                U701

                         pin 6 : 1.2V ?                              check


                                    YES

            NO               U1001 pin1

                         about : -5dBm ?



                                       YES

                               U1001                    NO
                             pin 3 : 3V?


                                       YES
                               U1001                        U701

                        change or resolder                  check




                               NO                      U902

                                                  pin9 : 2.8V ?



                                                                    YES



                                                                              U903
U102 pin39,C112                                                                                    NO         OSC801
                                                                          pin8 : 13MHz ?
change or resolder                                                                                       change or resolder
                                                                          Vp-p : 950mV?



                                                                                     YES


                                                  NO                          U902

                                                                       pin1,2,4,5:100mV?



                                                                                      YES

                                           U701                                U902
                                 change or resolder                    change or resolder




                                                                                                   2-9

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                                           This Document can not be used without Samsung's authorization
                                                                                            1                                                                                                            2                                                                                                       3                                                                               4                                                                                                       VCCD                  5                                                                                                                        6                                                                             7                                                                                                                                           8
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           VCCD
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                F101
                                                                                                                                                                                                                                  ZD101
                                                                                                                                                                                                   L101         22uH                                                                                                                R166   51                                                                 R170       51
                                                                                                                                                  VBAT                                                                                                                                   LED+                         TK_XR




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      R101




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                R102
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      100K




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                100K
                                                                                                                                                                                                                                                                                                                      TK_YU                       R167         51                              R171      51
                                                                                                                                                                                                                                                                                                                                    R168   51                                                                 R172       51                                                                                                               C120
                                                                                                                                                                                                                                                                                                                      TK_XL
                                                                                                                                                                                                                                                                                                                                                R169          51                               R173      51                                                                                                                               100NF                                                                                                                                                                                                                                 END_PWR
                                                                                                                                                                                                                                                                                                                      TK_YD
                                                              A                                                                                                                                        U101                         C101                 C100                                                                                                                                                                                                                                                                                                                                                                                                                TK_IRQ                                                                                              KEYPAD                                                                                                                       A
                                                                                                                                                                                                                                    330PF                                                                                                                                                                                                                                                                                                                                                                                                               3                                                                                                                       2     1
                                                                                                                                                                                                                                                         2.2UF                                                                                                                                                                                                                                                                                                                                                                                                                                                                            PWR_ON
                                                                                                                                                                                              5
                                                                                                                                                                                                   VIN             SW
                                                                                                                                                                                                                         1                                                                                                                                                                                                                                                                                                                                                                                                         2                          Q102
                                                                                                                                                                                                                                                                              ZD102                                                                                                              VBAT
                                                                                                                                                                                                                                                                                                                                                                             ZD118
                                                                                                                                                                                                                 GND 2                                                                                                                                                                                                                                                                                                                                                                                                                                  1
                                                                                                                                                                                                                                                                                                                                                                         1            6                                                                            36 35 34 33        32 31 30 29 28 27 26 25
                                                                                                                                                                                              4                          3                                                                                                                                                                                                                                                                                                                                                                                                        R147
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                AUX1

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        AUX2


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           NC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                   GND
                                                                                                                                                                                                                                                                                                                                                                                                                                                                   GND
                                                                                                                                                                                                                                                                                                                                                                                                                                                                         GND
                                                                                                                                                                                                                                                                                                                                                                                                                                                                         GND

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Y+

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            X+
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  VDD

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         VDD




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ARNG
                                                                                                                                                                                                                                                                                                                                                                         7
                                                                                                                                        BACKLIGHT_E N                                                 _SHDN         FB
                                                                                                                                                                                                                                                                                                                                                                         2            5                                                                   37 NC                                                                                                                                                                   0
                                                                                                                                                                                                                                                                                                                                                                         8                                                                                38 NC
                                                                                                                                                                                                                                                                                                                                                                         3            4
                                                                                                                                                                                                                                                                                                                                                                                                                                                              1X -                                                                                24
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            NC                                                                                                                                                                                              MENU                                  OVER                               STO
                                                                                                                                                                                                                                                                                                                                                                                                                                                              2Y -
                                                                                                                                                                                                                                                                                                                                                                                                       F107




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  23                                                                                                                                                                                      KEYPAD                                KEYPAD                             KEYPAD




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         SAMSUNG Proprietary-Contents may change without notice
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      AOUT                                                                                                                                                                                                12                                    12                                 12
                                                                                                                                                                                                      R103                                                                                                                                                                                                                                                    3 GND                                                                               22




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  This Document can not be used without Samsung's authorization
                                                                                                                                                                                  3D




                                                                                                                                                                                                                                                                                         LED-                                                                                                                                                                                                     U102                      _PENIRQ                                                                                                     V_OSC                                                                                                                                                                                                                           KEY_ROW(0)
                                                                                                                                                                          Q101




                                                                                                                                                                                                         5.6 (=>6.2)
                                                                                                                                                                                                                                                                                                                                                                                                                                                              4 VBAT1                                                                             21                                                                                                                                                                                         LEFT                              INTERNET                             RIGHT
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     TK_SDO
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      MISO                                                                                                                                                                                                KEYPAD                                KEYPAD                             KEYPAD
                                                                                                                                                                                                                             R104                                                                                                                                                                                                                             5 VBAT2                                                                             20                                                                                                                                                                                      12                                    1     2                            12
                                                                                                                                                DIM_EN                                                                                                                                                                                                                                                                                                                                                                               _DAV
                                                                                                                                                                                        2 S




                                                                                                                                                                                                                             33
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        KEY_ROW(1)
                                                                                                                                                                                                                                                                                                                                                                                                                                                              6 VREF
                                                                                                                                                                           G
                                                                                                                                                                           1




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  19                                                                 UP_SDI
                                                                                                                                                                                               V107




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      MOSI                                                                                                                                                                                                 SEND                                  UNDER                                CLR
                                                                                                                                                                                                                                                                                                                                                                                                                                                              7_ KBIRQ                                                                            18                                                                                                                                                                                      KEYPAD                                KEYPAD                           DD-DOM-4PIE




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 F106
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     TK_CS
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           _SS
                                                                                                                                                                  V108




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          12                                    12                                 12
                                                                                                                                                                                                                                                                                                                                                                                                                                                              8R 1                                                                                17                                                                                                                                                                                                                                                                                                                    KEY_ROW(2)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      SCLK



                                                                                                                                                                                                                                                                                                                                                                                                                                                                         NC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  R2

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           R3
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 R4

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        C1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               C2

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       C3
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               C4
                                                                                                                                                                                                                                                                                                                                                                                                         C104            C102          C103
                                                                                                                            CN106                                                                                                                                                                                                                                                                        100NF           NC            NC                               9 10 11 12 13 14 15 16
                                                                                                                 17   TRST         11
                                                                                                                 18                 2
                                                                                                                      TDO         2
                                                                                                                 19    TDI        3 3
                                                                                                                 20   TMS         4 4                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       U106
                                                                                                                 21   TCK         5 5                                                                                                                                                                                                                                                                                                                                                                                                                                                                  C125                   R165               5                       1
                                                                                                                 22                 6                                                                                                                                                                                                                                                                                                                                                                                                                                                                   NC                                              VCC        NC                   C128
                                                                                                                       F-WE       6                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           1K
                                                                                                                 23                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    100NF
                                                              B                                                        V_BATT GND 7                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      2                                                                                                                                                                                                                                    B




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     KEY_COL(0)




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               KEY_COL(1)




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   KEY_COL(2)
                                                                          VBAT                                   24                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                INA                            UP_SCLK
                                                                                                                      GND   V_BUS 8
                                                                                                                 25                 9
                                                                    FKEY_EN                                            HP/POWER D+                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               4 OUTY GND 3
                                                                                                                 26                 10
                                                                                                                      RXD        D-
                                                                                                                 27   TXD    SPK+ 11                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          C126
                                                                                                                 28    28     SPK- 12                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         10PF
                                                                                                                 29                 13
                                                                                                                       29     MIC+
                                                                                                                 30    30     MOT+ 14
                                                                                                                 31                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           R161
                                                                                                                      31         15 15
                                                                                                                 32                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            NC                                                           ZD116                                                                                                                                       ZD115
                                                                                                                      ANT        16 16
                                                                                                                                                                                                                                                                                                        HVDD
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            6                                                                                                                   6
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       1                                                                                                                                                           1




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        SCL
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   7                                                                                        VBAT                                                                   7
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       2                    5                                                                                                                   5                  2
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   LED107
                                                                                                                                                                                                                                                                                                                                                                                                                                                               ZD109                                                                                                                                                                                                                                               8                                                                                                                                                                8
SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    3                       4                                                                                                                   4                  3
                                                                                                                                                                                                                                                                                                                                                                                                                                                      1                           6                                                                                                                                                                                                                                                                                        1                                                       1
                                                                                                                                                                                                                                                                                                                                                                                                                   KEY_ROW(0)                                                                         KEY_ROW(1)
                                                                                                                                                                                                                                                                                                                                                                                                                                                      7
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            LED108
                                                                                                                                                                                                                                                                                                                                                                                                                                                          2                       5
                                                                                                                                                                                                                                                                                                                                                                                                                                                      8
                                                                                                                                                                                                                                                                                                                                                                                                                                                      3                           4                                                                                                                                                                                                                                                                               2        34                                             2        34
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      PWR_ON




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            8


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    7
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        3




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                2
                                                                                                                                                                                                                                                                                                U107
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  ZD110
                                                                                                                                                                                                                                                  CN101
                                                                                                                                           F108                                                                                                                                                                                                               F109                                                                                                                                                                                                                                     1.8V     VCCD
                                                                                                                                                                                                                                           1                 2                                                                                                                                                                                                                              SPK1
                                                                                                                                                                                                                                              1          2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          R151 R152                                                       R164 R153R150
                                                                                                                                                                                                                                           34 3                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         R149                         150 100 3.9
                                                                                                                                                                     CM_CLK                                                                              4                                                                       VREF                                                                                    SPK1P                                                                                                                                                                                                                                                                                                                       150 100                            3.9
                                                                                                                                8                      1                                                                                   56                                                                                                       1                           8




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        4



                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                5


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          6
                                                                                 CAM_D(1)                                         OUT             IN                   HREF                                                                   5          6                                                                       SCL                     IN              OUT                          CAM_D(0)           SPK1N
                                                                                                                                                                                                                                           78                                                                                                                                                                                                                        ZD111
                                                                                                                                                                        SDA                                                                   7          8                                                                       P_CLK
                                                                                                                                7                      2                                                                                   9                 10                                                                                     2                           7




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  2-10
                                                                                 CAM_D(4)                                         OUT           IN                                                                                            9         10                                                                                               IN              OUT                          CAM_D(3)
                                                                                                                                                                                                                                          11 11         12   12                                                                                                                                                                                                                                                                                                                                                                        VSYNC
                                                                                 CAM_D(2)                                       6                      3                                                                                  13 13              14                                                                                     3                           6                     CAM_D(5)
                                                                                                                                                                                                                                                                                                                                                                                                                                                  4                               3
                                                                                                                                  OUT           IN                                                                                                      14                                                                                               IN              OUT                                                                                                      8
                                                                                                                                                                                                                                          15 15         16   16                                                                                                                                                               RST                                                                                                                                                                                                                                                                  Q107                                                                        Q108                                                                                          Q109
                                                                                                                                          GND




                                                                                                                                                                                                                                                                                                                                                                   GND
                                                                                 CAM_D(6)                                       5 OUT           IN 4                                                                                      17 17         18   18                                                                                     4 IN                 OUT 5                        CAM_D(7)                                    5
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  7
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      2
                                                                                                                                                                                                                                          19 19              20        47K    R118
                                                              C                                                                                                                                                                                         20                                                                                                                                                                                            6                               1                                                                                                                                                                                                                                                                                                                                                                                                                       C
                                                                                                                                                                                                                                          21
                                                                                                                                                                                                                                              21                                                                                                                                                                                                                                                                                                                                                                                                                                                               3                                                                                      3                                                                                      3
                                                                                                                                           9                                                                                                                                                                                                                       9                                                                                                                                                                                                                                                                                                                  SVC_RED
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   1                            C123SVC_GREEN                                  1                                   C122                                                       1                      C121
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                47PF                                                                               47PF                                                                              47PF
                                                                                                                                                                                                                 F102




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                R138                                                                                                                           2                                                                                      2                                                                                      2
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                33K
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          RST                                                                     LCD_RST                                                        R148                                                                 R134                                                                                                  R135
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 15K                                                                  15K                                                                                                   15K
                                                                                                                                                                                  C134                         R174
                                                                                                                                                                                   NC                                                                                                                                                                                                                                                                               U103                                                                                                                                     C114
                                                                                                                                                                                                               0                                                                                                                                                                                                                                                                                                                                                                                             1NF
                                                                                                                                                                                                                                                         C107                C124                 C108           C105                                                                                                                                 1                           5
                                                                                                                                                                                                                                                                                                                                                                                                  VCCD                                                        IN        OUT                                                 1.8V
                                                                                                                                                                                                                                                        220NF                1UF                  1UF            NC
                                                                                                                                                                                                                                                                                                                                                                                                                                                      2
                                                                                                                                                                                                                                                                                                                                                                                                                              R140                            GND
                                                                                                                                                                                                                                                                                                                                                                                                                              100K                    3                                                                                                                                                                                                                                                                          ZD103                                                                                                                                      ZD104
                                                                                                                                                                                                                                                                                                                                                                                                                                                              EN                  4
                                                                                                                                                                                                                                                                                                                                                                                                                                                                        BYP
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 C116            C115                                                                                                                                                                                                      1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                6                                                                                                                   6
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 100NF           1UF                                                    ZD112
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           7                                                                                    VBAT                                                                     7
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            2                   5                                                                                                                   5                   2
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          LED105
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              6
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           SDA                  1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  HVDD                                                                                     8
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            3                   4                                                                                                                   4                   3
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         8
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                7
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    2                         5                                                                                                                                                                                 1                                                               1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   HSYNC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                8
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              4
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              LED106
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                3
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   XCS
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      23                4                                     23                    4
                                                                                                                                                                                                                                                                                                                                                                                                                                                              ZD107
                                                                                                                                                                                                                                                                                                                                                                                                                                              1                              6
                                                                                                                                                                                                                                                                                                                                                                                                                 KEY_ROW(2)                                                                      KEY_COL(1)
                                                                                                                                                                                                                                                                                                                                                                                                                                              7
                                                                                                                                                                                                                                                                                                                                                                                                                                                  2                          5
                                                                                                                                                                                                                                                                                                                                                                                                                                              8
                                                                                                                                                                                                                                                                                                                                                                                                                                              3                              4
                                                                                                                                                                                                                                                                                                                                                                                                                 KEY_COL(2)                                                                      KEY_COL(0)                                                                                                                                                                                                                                             R130R131                                                        R127 R128R129
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            R132                         150 100 3.9
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         150 100                            3.9
                                                              D                                                                                            R119                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               D
                                                                                                                                                           33K                                                                                     CN102
                                                                                                                          RST                                                                           C119
                                                                                                                                                                                                        10PF                 R144           1               2
                                                                                                                                                                                                                                                   1    2                                                                      TK_SDO                                                                                                                                                                                                                                                                                                                                                                   Q104                                                                       Q105                                                                                           Q106
                                                                                                                                                                                                                             0              3               4                                                                                                                                                                                                                                                                                              VCCD                                                        1.8V
                                                                                                                                                                                                                                                   3    4                                                                      UP_SDI
                                                                                                                                                                                                                                            5                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           ZD117
                                                                                                                                          ZD105                                         UP_SCLK                                                    5     6 6                                                                   TK_CS                                                                                                                           ZD108                                                                                                                                                                                                                                                                                                                                                          SVC_BLUE
                                                                                                                                                                                                                                              7            8                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        ZD114
                                                                                                                                                                                          SPK1N                                                    78                                                                          SPK1P                                                                                                                                                                                                                                                                                                                                                                               3                                                                                        3                                                                                    3
                                                                                                                                                                                                                                              9
                                                                                                                                                                                                                                                   9
                                                                                                                                                                                                                                                           10
                                                                                                                                                                                                                                                             10                                                                SDA                                                                                                            1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              6
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                SVC_GREEN                                                                                                                                                                              SVC_RED
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        1                        C111SVC_GREEN                                      1                                  C112                                                        1                   C113
                                                                                                                                                                                            SCL                                             11    11       1212                                                                V_OSC                                                                                                          7                                                                                                                                                                                                                                                                                  47PF                                                                                  47PF                                                                            47PF
                                                                                                                                                                                       SVC_BLUE                                             13
                                                                                                                                                                                                                                                  13
                                                                                                                                                                                                                                                           14
                                                                                                                                                                                                                                                             14                                                                SVC_GREEN
                                                                                                                                                                                                                                                                                                                                                                                                                                              2                               5
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                SVC_BLUE                                                                                                                                                                                                           2                                                                                        2                                                                                    2
                                                                                                                                                                                                                                            15             16                                                                                                                  R154   100                                                     8                                                                                                                                               CN105
                                                                                                                                                                                        SVC_RED                                                   15         16                                                                                                                             KEY_ROW(2)
                                                                                                           R157           100                                                                                                               17             18                                                                                                                  R155   100                                                     3                               4
                                                                                 KEY_COL(2)                                                                                                                                                       17         18                                                                                                                             KEY_ROW(1)                                                                                          SVC_RED
                                                                                 KEY_COL(1)                R158           100                                                                                                               19    19       2020                                                                                                                R156   100   KEY_ROW(0)
                                                                                                           R159           100                                                                                                               21             22
                                                                                 KEY_COL(0)                                                                                                                                                       21         22                                                                PWR_ON                                                                                                                                                                                                                                                  2           1                                                                                                                                                                                                                                     FKEY_EN
                                                                                                                                                                                                                                            23             24                                                                                                                                                                                                                                                                                                                        2                  1
                                                                                                                                                                                 BACKLIGHT_EN                                                     23         24                                                                FKEY_EN                                                                                                                                                                                                                                                 4           3
                                                                                                                                                                                                                                            25             26                                                                                                                                                                                                                                                                                                                        4                  3
                                                                                                                                                                                       DIM_EN                                                     25         26                                                                XCS                                                                                                                                                                                             TK_XL                                                   6           5
                                                                                                                                                                                                                                            27    27       2828                                                                VSYNC                                                                                                                                                                                           TK_XR                                                 6 8           7    5                                        TK_YD
                                                                                                       9 F104                                                                                                                               29
                                                                                                                                                                                                                                                  29
                                                                                                                                                                                                                                                           30
                                                                                                                                                                                                                                                             30                                                                HSYNC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     8
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       10          9
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        7
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 TK_YU
                                                                                                                                                                                                                                            31             32                                                                                                                                                    TP2                     TP1                                                                                                                                        10                  9           R136           NC
                                                                                                                                                                                                                                                  31         32                                                                CM_CLK                                                                                                                                                                                       XCS                                                        12         11
                                                                                                     GND




                                                                                                                                                                                                                                            33             34                                                                                                                                                                                                                                                                                                                       12 14              11           R137            0
                                                                  VREF                        OUT           IN                                                                          CAM_D(7)                                                  33         34                                                                CAM_D(6)                                                                                                                                                                                LCD_AD(0)                                                                  13                                                 HSYNC
                                                                                        5                             4                                                                 CAM_D(5)                                            35
                                                                                                                                                                                                                                                  35
                                                                                                                                                                                                                                                           36
                                                                                                                                                                                                                                                             36                                                                CAM_D(4)                                                                                                                                                                                LCD_AD(2)                                                    14
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       16         15
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        13                                           LCD_AD(1)
                                                                                                                                                                                                                                            37             38                                                                                                                                                                   C133                  C118                                                                                                                                              15
                                                                                                                                                                                                                                                                                                                                                                                                      C136             C135                                                                                                                                                         16
                                                                                        6 OUT               IN 3
                                                                  HREF                                                                                                                  CAM_D(3)                                                  37         38                                                                CAM_D(2)                                                                                          NC                   39PF                                                             LCD_AD(4)                                                       18         17                                                 LCD_AD(3)
                                                                                                                                                                                                                                            39             40                                                                                                                                         39PF             NC                                                                                                                                                           18                  17
                                                                                                                                                                                        CAM_D(1)                                                  39         40                                                                CAM_D(0)                                                                                                                                                                                LCD_AD(6)                                                       20         19                                                 LCD_AD(5)
                                                                                                                                                                                                                                            41             42                                                                                                                                                                                                                                                                                                                       20                  19
                                                                  P_CLK                       OUT           IN                                                                         LCD_AD(7)                                                  41         42                                                                LCD_AD(6)                                                                                                                                                                                                                                               22         21                                                 LCD_AD(7)
                                                                                        7                             2                                     VBAT         VCCD          LCD_AD(5)
                                                                                                                                                                                                                                            43
                                                                                                                                                                                                                                                  43
                                                                                                                                                                                                                                                           44
                                                                                                                                                                                                                                                             44                                                                LCD_AD(4)                                                                                                                                                                                                                                            22 24         23
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        21
                                                                                                                                                                                                                                            45             46                                                                                                                                                                                                                                                                                                                       24                  23
                                                                                              OUT            IN                                                                        LCD_AD(3)                                                  45         46                                                                LCD_AD(2)                                                                                                                                                                                                                                               26         25
                                                                                        8                             1                                                                LCD_AD(1)
                                                                                                                                                                                                                                            47
                                                                                                                                                                                                                                                  47
                                                                                                                                                                                                                                                           48
                                                                                                                                                                                                                                                             48                                                                LCD_AD(0)                                                                                                                                                                                                                                            26 28         27
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        25
                                                                                                                                                                                           HVDD                                             49    49       5050                                                                                                                                                                                                                                                                                                                     28 30         29    27
                                                                                                                                                                                                                                            51             5252                                                                                                                                                                                                                                                                                                                     30                  29          R139           0
                                                                                                                                                                                                                                                   51                                                                                                                                                                                                                                                                   LCD_RST                                                        32         31                                                 VSYNC
                                                                                                                                                                                                                                            53               54   54                                                                                                                                                                                                                                                                                                                32                  31
                                                                                                    R175                                                                                                                                           53                                                                                           TK_IRQ                                                                                                                                                                      LED-                                                       34         33
                                                                                                                                                                                                                                                             55   55                                                                                                                                                                                                                                                                                                                34            35    33                                           LED+
                                                                                                    100                                                                                                                                                                                                                 R124                                                                                                                                                                                                                                                                            35
                                                                                                                                                                                                                                                                                                                          1K
                                                                                                                                                                                                                                                                                                       C129    C130   C131
                                                                                                                                                                                                                                                                                                       10PF    10PF   10PF
                                                              E                                                                                                                                                                                                               C137    C138
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              E
                                                                                                                                                                                                                                                                              100NF   39PF
                                                                                            1                                                                                                            2                                                                                                       3                                                                               4                                                                                                                             5                                                                                                                        6                                                                             7                                                                                                                                           8
                                                                                                                                                 1                                            2                                                    3                                                                                               4                                                      5                                            6                                                            7                            8




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             Q101
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        6
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        5
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        2
                                                                                                                                A                                                                                                                                                                                                                                                                                                                                                                        4              1                                           A


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       U101
                                                                                                                                                                                                                          CN101
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             3
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     VBAT
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 ISENSE
                                                                                                                                                                                                                                                                                                                                                                                                                                                                         1                         6
                                                                                                                                                                                                                         1 1       44                                                                                                                                                                                                                                                      DRIVE
                                                                                                                                                                                                                         2 2       5 5                                                                                                                                                                                                                                   2       GND               5
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          VSENSE
                                                                                                                                                                                                                         3 3       66                                                      C101
                                                                                                                                                                                                                           G G GG                                                          33PF                                                                                                                                                                          3                         4
                                                                                                                                                                                                                                                                                                                                                                                                                      TA_VEXT                                                    VCC       PROG
                                                                                                                                                                                                                           7 89 10                                                                                                                                                                                                                                                                                                        C106
                                                                                                                                                                              C103 C102                                                                                                                                                                                                                                                                                                                                                   10UF
                                                                                                                                                                              2.2UF 100NF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          10V
                                                                                                                                                                                                    C105       C104                                                                                                                                                                                                                                   C107
                                                                                                                                                                                                    33PF       33PF                                                                                                                                                                                                                                   10UF
                                                                                                                                                                                                                                                                                                                                                                                                                                                      10V

                                                                                                                                                                                                                                                                                                                        C108
                                                                                                                                                                                                                                                                                                                        100NF                                                                                                                                     Q102
                                                                                                                                B                                                                                                                                                                                                                                                                                                                                                                                                                                   B
                                                                                                                                                                                                                                                                                                                                                                                                                                                              1              6



                                                                                                                                                                                                                                                                                                                                                                                                                                                              2                                                                    R102   10K
                                                                                                                                                                                                                                                                                                                                                                                                                      CHG_ON                                                             R103                                                               ICHRG
                                                                                                                                                                                                                                                                                                                                            VREF                                                                                                                             5         47K,1%
                                                                                                                                                                                                                                                                                                                                                   VBAT       VOSC           VCCA          VCCB                                                                                                                  TA_VEXT
                                                                                                                                                                                                           VBAT                                                                                                                                                                                                                                                                                                             R104
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            3K
                                                                                                                                                                                                                                                                                                                                                                                                                                                              3              4
                                                                                                                                                                                                                                    49             50         51             48            29          30          28      6




                                                                                                                                                                                                                                                                                 VSIM
                                                                                                                                                                                                                                                                                                        VREF

                                                                                                                                                                                                                                                                                            CREF
                                                                                                                                                                                                                                                                                                                    GNDQ
                                                                                                                                                                                                                         54




                                                                                                                                                                                                                                                                  SIM_IO
                                                                                                                                                                                                                                                                                                                           GNDD1
                                                                                                                                                                                      SIMRST                                UP_RST                                                                                                 VLDO_7 40




                                                                                                                                                                                                                                         SIM_RST
                                                                                                                                                                                                                                                    SIM_CLK
                                                                                                                                                                                                                         53 UP_CLK
                                                                                                                                                                                      SIMCLK
                                                                                                                                                                                                                         52 UP_IO                                                                                                   VDD67 41
                                                                                                                                                                                   SIMDATA
                                                                                                                                                                                                                         44 ADC_AUX1                                                                                                        42
                                                                                                                                                                                                                                                                                                                                   VLDO_6
                                                                                                                                                                                                                         45 ADC_AUX2
                                                                                                                                                                                                                          56 ADC_TRIG
                                                                                                                                C                                                                                                                                                                                                         32                                                                                                                                                                                                                        C
                                                                                                                                                                                                                                                                                                                                   VL5S_A
                                                                                                                                                                                                                          3 VACC                                                                                                          31
                                                                                                                                                                                                                                                                                                                                   VL5S_B
                                                                                                                                                                                                                          2 VBAT
                                                                                                                                        PWR_ON                                                                                                                                                                                              33
                                                                                                                                                                                                                                                                                                                                   VLDO_5
                                                                                                                                                                                                                         1
                                                                                                                                                                                       TA_VEXT                              VEXT
                                                                                                                                                                                                                         43                                                                                                                 34                       C111           C109          C110                                   VRF           VPAC
                                                                                                                                                                                                                            BTEMP                                                                                                    VDD5
                                                                                                                                                                                                                                                                                                                                                                     1UF            1UF           1UF
                                                                                                                                                                                                                         46                                                                                                               36
                                                                                                                                                                                                                             PWR_SW1N                                                                                              VL4S_A
                                                                                                                                                                                                                         47                                                        U102                                                   35
                                                                                                                                                                                         JIG_ON                              PWR_SW2                                                                                               VL4S_B
                                                                                                                                                                                                                         13 RTC_ALMN
                                                                                                                                                                                      RTCALARM                                                                                                                                              37
                                                                                                                                                                                                                         21 PWR_KEEP                                                                                               VLDO_4
                                                                                                                                      PWR_KEEP
                                                                                                                                                                                                                         20 PSW1_BUF
                                                                                                                                                                                                                         14                                                                                                                                   VBAT          VCC_1.8A       VCCD          VRTC
                                                                                                                                                                                                                             INTRQ                                                                                                  VDD34 38




                                                                                                                         2-11
                                                                                                                                                                           R106                                          15                                                                                                                                                                                                                    C112           C113
                                                                                                                                                                                         UP_SDI                              SDI
                                                                                                                                                                           330K                                           16                                                                                                                39                                                                                                 1UF            1UF
                                                                                                                                                                                                                             SDO                                                                                                   VLDO_3
                                                                                                                                                                                                                         17
                                                                                                                                                                                       UP_SCLK                               SCLK
                                                                                                                                                                                                                         18
                                                                                                                                                                                         UP_CS                               CSN
                                                                                                                                                                                                                                                                                                                                            12
                                                                                                                                                                                                                         22                                                                                                          VRTC
                                                                                                                                                                                        EN_VRF                           23   EN_3
                                                                                                                                D       KEY_COL(3)                                     EN_VPAC                                EN_4[0]                                                                                                                                                                                                                                                                                                                               D
                                                                                                                                                                                                                         24                                                                                                                 11
                                                                                                                                                     3                                                                   25   EN_4[1]                                                                                              VLDO_2
                                                                                                                                                                1                        XOENA                                EN_5
                                                                                                                                                                                                                         26
                                                                                                                                                                                                                         27   EN_5A
                                                                                                                                                     2                                                                                                                                                                                      19
                                                                                                                                        KEY_ROW(0)              Q103                                                          EN_5B                                                                                                RESETN

                                                                                                                                                                                                                         55 RING_PWM                                                                                                                                                                                                                                                               RST
                                                                                                                                                                                                                  C119                                                                                                                      9                                                                                   R111
                                                                                                                                                                                                                  1UF                                                                                                              VLDO_1                                                                                       1.2K                              R110
                                                                                                                                                                                                                         57
                                                                                                                                                                                                                            GND                                                                                                                                                                                                                                     10
                                                                                                                                                                                                                         58                                                                                                                 10
                                                                                                                                                                                                                            GND                                                                                                     VDD12
                                                                                                                                                                                                                         59
                                                                                                                                                                                                                            GND
                                                                                                                                                                                                                         60
                                                                                                                                                                                                                            GNDD
                                                                                                                                                                                                                                                                                                                                                                                                                             POS
                                                                                                                                                                                                                                                                                                                                                                                                                             1




                                                                                                                                                                                                                                                                                                                                                                                                                                       D101                   C115                   C121




                                                                                                                                                                                                                                  GND
                                                                                                                                                                                                                                  GND
                                                                                                                                                                                                                                  GND
                                                                                                                                                                                                                                  GND
                                                                                                                                                                                                                                                                  RING_DRV
                                                                                                                                                                                                                                                                                 VIB_DRV
                                                                                                                                                                                                                                                                                            LED1_DRV
                                                                                                                                                                                                                                                                                                        LED2_DRV
                                                                                                                                                                                                                                                                                                                           GND
                                                                                                                                                                                                                                                                                                                           GND
                                                                                                                                                                                                                                                                                                                           GND
                                                                                                                                                                                                                                                                                                                           GND
                                                                                                                                                                                                                                                                                                                                                                                                                                                               NC                   220NF
                                                                                                                                                                                                                                                                                                                                                                                                                      M101




                                                                                                                                                                                                                                                              5              4             78                                                          C120     C114            C116         C117             C118




                                                                                                                                                                                                                               61
                                                                                                                                                                                                                               62
                                                                                                                                                                                                                               63
                                                                                                                                                                                                                               64
                                                                                                                                                                                                                                                                                                                        65
                                                                                                                                                                                                                                                                                                                        66
                                                                                                                                                                                                                                                                                                                        67
                                                                                                                                                                                                                                                                                                                        68
                                                                                                                                                                                                                                                                                                                                                       1UF      1UF             1UF          1UF              100PF
                                                                                                                                                                                                                                                                                                                                                                                                                               2




                                                                                                                                                                                                                                 R113         3.3
                                                                                                                                                                             KEY_BL
                                                                                                                                                                                                                                                                                                                                                                                                                             NEG




                                                                                                                                E                                                                  R114                                                                       NC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    E
                                                                                                                                                                                                   NC   R116                                                                 R115
                                                                                                                                                                                                        3.3
                                                                                                                                                                           KEY_BL2




This Document can not be used without Samsung's authorization
                                                                                                                                                                                                            D103




                                                                SAMSUNG Proprietary-Contents may change without notice
                                                                                                                                                                                                                                 C122                                                                       D102
                                                                                                                                                                                                                                 22UF
                                                                                                                                                                                                                                 6.3V
                                                                                                                                                         R112                                              CHG_DET
                                                                                                                                                         10K                      3    Q104
                                                                                                                                                                       1
                                                                                                                                    TA_VEXT
                                                                                                                                                                                  2




                                                                                                                                F                                                                                                                                                           POWER                                                                                                                                                                                                                                                                   F




                                                                                                                                                 1                                            23                                                                                                                                                   4                                                      5                                            67                                                                                        8
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams
                                                                                                                                                   1                                                                      2                                                          3                                             4                                                                              5                                                                                                   6                                                                                             7                                                         8




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              CN205-1
                                                                                                                                                                                                                                                                                LCD CONNECTOR
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    V_MOT                                                 1

                                                                                                                                A                                                                                                           F201                                                                                                                                                                                                                                                                                                                                                                                                                          2                                  A
                                                                                                                                                                                                                                                                                                                                         PEN_IRQ
                                                                                                                                                                                                                                                                                     VCCD        VBAT                                                                                                           F202                                                                                                                                                                                                                                              C255
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            D201
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  100NF
                                                                                                                                                        LCD_AD(1)                                                               1 IN                      OUT 8                                                                                                                                           8                                   1                                                                                     LCD_AD(0)
                                                                                                                                                                                                                                                                                                                                                                                                                OUT                     IN
                                                                                                                                                        LCD_AD(3)
                                                                                                                                                                                                                                2 IN                      OUT 7                                                                                                                                                                                                                                                                                                                                       VBAT
                                                                                                                                                                                                                                                                                                                                                                                                          7                                   2                                                                                     LCD_AD(2)
                                                                                                                                                                                                                                3                             6                                                   CN201                                                                                         OUT                 IN
                                                                                                                                                        LCD_AD(5)                                                                 IN                      OUT                                                 1              2                                                                                                                                                                                                                                                                                                    U203
                                                                                                                                                                                                                                                                                                                1          2
                                                                                                                                                                                                                                                                                                                                                                                                          6 OUT                     IN 3                                                                                            LCD_AD(4)
                                                                                                                                                                                                                                4                             5                                               3              4
                                                                                                                                                        LCD_AD(7)                                                                 IN                      OUT                                                   3          4
                                                                                                                                                                                                                                                                                                              5              6                                                                                                                                                                                                                                                                                          1                   8




                                                                                                                                                                                                                                                  GND
                                                                                                                                                                                                                                                                                                                5          6
                                                                                                                                                                                                                                                                                                                                                                                                          5 OUT                     IN 4                                                                                            LCD_AD(6)                                                                               VIN     VOUT1                                                            V_LED
                                                                                                                                                                                                                                                                                                              7              8




                                                                                                                                                                                                                                                                                                                                                                                                                          GND
                                                                                                                                                                                                                                                                                          HVDD                  7          8
                                                                                                                                                                                                         9                                       9                                                            9              10                                                                                                                                                                                                                                                                                         2                   7
                                                                                                                                                                                                                                                                                                                9         10                                                                                                                                                                                                                                                                                                SD1    VOUT2                                  V_MOT
                                                                                                                                                                                                                                                                                                             11              12                                                                                              9                                       9
                                                                                                                                                                                                                                                                                                                11        12
                                                                                                                                                                                                                                                                                                             13              14                                                                                                                                                                                                                                                                                         3                   6
                                                                                                                                                          CAM_D(1)                   OUT                      IN                                                                                                13        14                                                                                                                                                                                                                              VIB_EN                                                            SD2      ERR1
                                                                                                                                                                                                                                                                                                             15              16




                                                                                                                                                                                                        GND
                                                                                                                                                                                   5                             4                                                                                              15        16                                                                                                                              IN                      OUT                                               CAM_D(0)
                                                                                                                                                                                                                                                                                                             17              18                                                                                                                                                                                                                                                                                         4                   5




                                                                                                                                                                                                                                                                                                                                                                                                                                                                      GND
                                                                                                                                                          CAM_D(3)                                                                                                                                              17        18                                                                                                                          4                                         5                                                                                                                           GND      ERR2
                                                                                                                                                                                   6 OUT                      IN 3                                                                                           19              20
                                                                                                                                                                                                                                                                                                                19        20                                                                                                                              IN                      OUT                                               CAM_D(2)
                                                                                                                                                                                                                                                                                                             21              22                                                                                                                       3                                         6
                                                                                                                                                          CAM_D(5)                   OUT                      IN                                                                                                21        22
                                                                                                                                                                                   7                                  2                                                                                      23              24                                                                                                                                                                                                                                                  R216                R217
                                                                                                                                B                                                                                                                                                                               23        24                                                                                                                              IN                      OUT                                               CAM_D(4)                                                                                                                                                                 B
                                                                                                                                                                                                                                                                                                             25              26                                                                                                                       2                               7                                                                                           47K                47K
                                                                                                                                                          CAM_D(7)                   OUT                         IN                                                            P_CLK                            25        26
                                                                                                                                                                                   8                                  1                                                                                      27              28
                                                                                                                                                                                                                                                                              HREFER                            27        28                                                                                                                                                                                                        CAM_D(6)
                                                                                                                                                                                                                                                                                                             29              30                                                                                                                       1 IN                        OUT 8
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  C202
                                                                                                                                                                                                                                                                              VREFER                            29        30
                                                                                                                                                                                                                                                                                                             31              32                                                                                                                           F204                                                                                                                                                                                                                    10UF
                                                                                                                                                                                            F203                                                                              DIM_EN                            31        32                                   FKEY_EN
                                                                                                                                                                                                                                                                                                             33              34                                                                                                                                                                                                                                                                                                                            C203                   6.3V
                                                                                                                                                                                                                                                                        BACKLIGHT_EN                            33        34
                                                                                                                                                                                                                                                                                                             35              36                                                                                                                                                                                                                                                                                                                            10UF
                                                                                                                                                                                                                                                                           KEY_COL(0)                           35        36                                   KEY_ROW(0)
                                                                                                                                                                                                                                                                                                             37              38                                                                                                                                                                                                                                                                                                                            6.3V
                                                                                                                                                                                                                                                                           KEY_COL(1)                           37        38                                   KEY_ROW(1)
                                                                                                                                                                                                                                                                                                             39              40
                                                                                                                                                                                                                                                                           KEY_COL(2)                           39        40                                   KEY_ROW(2)
                                                                                                                                                                                                                                             9                                                               41              42
                                                                                                                                                                                                                                                                             SVC_RED                            41        42                                   SVC_GREEN
                                                                                                                                                                                                                                                                                                             43              44                                                                                                                                                                                  R228                            100
                                                                                                                                                                                                                                                                            SVC_BLUE                            43        44                                   VOSC                                                                                                                                                                                                       CM_CLK
                                                                                                                                                                                                                                                                                                             45              46
                                                                                                                                                                                                    SCL                       OUT                    IN                                                         45        46                                   SDA                                                                                                                                                                                                                                                                                  L201
                                                                                                                                                                                                                                                                                                             47              48                                                                                                                                                                                  R229                            51




                                                                                                                                                                                                                                            GND
                                                                                                                                                                                                                          5                               4                                                     47        48                                   SPK1P                                                                                                                                                                                                      HSYNC                                                                     NC
                                                                                                                                                                                                                                                                                                             49              50
                                                                                                                                                                                                    RST                       OUT                    IN                                  SPK1N                  49        50
                                                                                                                                                                                                                          6                               3                                                  51                                                                                                                                                                                                  R2305                            1
                                                                                                                                                                                                                                                                                                                51        52 52                                                                                                                                                                                                                                           VSYNC
                                                                                                                                                                                            PWR_ON                            OUT                    IN                                                      53 53        54 54
                                                                                                                                                                                                                          7                             2                                                                                                                                                                                                                                                        R231                            51
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             C253
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             NC




                                                                                                                                                                                                                                                                                                                          55 55                                                                                                                                                                                                                                           XCS

                                                                                                                                                                                                                          8 OUT                      IN 1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     VCCD




                                                                                                                                                                                                                                                                                                                                                                                                                                                                      47PF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  47PF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         47PF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    47PF
                                                                                                                                                                                                                                                                                                                                                                    R223                     0
                                                                                                                                                                                                                              F208                                                                                                                                                                                                           TK_CS
                                                                                                                                C                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            C
                                                                                                                                                                                                                                                                                                                                                                    R224                     0
                                                                                                                                                                                                                                                                                                                                                                                                                                             UP_SDI

                                                                                                                                                                                                                                                                                                                                                                    R225                     0




                                                                                                                                                                                                                                                                                                                                                                                                                                                                      C247
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  C248
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         C249
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    C250
                                                                                                                                                                                                                                                                                                                                                                                                                                             TK_SDO
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                R220                    100K
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 UP_SCLK                                                                                                                        VBAT                VCCB
                                                                                                                                                                                   ZD201                                                                                                                                                                            R226                     47                                                                                                                                                                 R221                    100K
                                                                                                                                                                                                                                                                                                                                                                                                                                             UP_SCLK                                                               UP_SDI
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                R222                    100K
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  TK_SDO                                                                                                                                                          R232
                                                                                                                                                                                                                                                                                                            CN202                                                                                                                                                                                                                                                                                                                                                                 68
                                                                                                                                                                                                                                                                                                        1                                                                                                C241                                                                                                                                                                                                                                                                                  LED217
                                                                                                                                                                                                                                                                                                            G                                                                                                                                                                                                                                                                                                                                                                     R214




                                                                                                                                                                               6
                                                                                                                                                                                        5
                                                                                                                                                                                                4
                                                                                                                                                                                                                                                                                                                                                                                                         10PF                                                                                                                                                                                                                                                                     68
                                                                                                                                                                                                                                     C251                                                               2                                                                                                                                                                                                                                                                                                                                                                                  1
                                                                                                                                                                                                                                                                                                            A                                   C242 C243      C244                                                                                                                                                                                                                                                                                                                            LEDA
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           2




                                                                                                                         2-12
                                                                                                                                                                                                                                                                                                                                                220PF 47PF     10PF                                                                                                                                                                                                                                                                                                                            LEDC
                                                                                                                                                                                                                                     C252                                                               3                                                                                                                                                                                                                                                                                                                                                                                  3
                                                                                                                                                                                                                                                                                                            C                                                                                                                                                                                                                                                                                                           IRDA_TX                                                                TXD
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           4
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        IRDA_RX                                                                RXD
                                                                                                                                                                                                                                                                                                        4                                                                                                                                                                                                                                                                                                                                                                                  5
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        IRDA_EN                                                                SD
                                                                                                                                                                                                                                                                                                            G                                                                                                                                                                                                                                                                                                                                                                              6




                                                                                                                                                                                        2


                                                                                                                                                                               1
                                                                                                                                                                                                3
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               VCC




                                                                                                                                                                                    7
                                                                                                                                                                                            8
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           7
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               GND
                                                                                                                                    KEY_COL(0:3)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              C254        C237
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              10UF        1UF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    V211




                                                                                                                                D
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     V212




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             D
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            C238
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams




                                                                                                                                                                                                                                                                                                                                         VBAT                                                                                                                                                                                                                                                                                               330NF
                                                                                                                                                       KEY_COL(3 )

                                                                                                                                                       KEY_COL(2 )
                                                                                                                                                       KEY_COL(1 )

                                                                                                                                    KEY_ROW(0:5)       KEY_COL(0 )
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 LED211
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          LED212




                                                                                                                                                                                                                                                                                                                                       LED201
                                                                                                                                                                                                                                                                                                                                                               LED202
                                                                                                                                                                                                                                                                                                                                                                                         LED203
                                                                                                                                                                                                                                                                                                                                                                                                                 LED204
                                                                                                                                                                                                                                                                                                                                                                                                                                             LED206
                                                                                                                                                                                                                                                                                                                                                                                                                                                                        LED207
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        LED208
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        LED209




                                                                                                                                                       KEY_ROW(0)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      IRDA

                                                                                                                                                       KEY_ROW(1)




                                                                                                                                                                                                                                                                                                                                                        NC
                                                                                                                                                       KEY_ROW(2)
                                                                                                                                                                                                                                                                                                                                                                               V206 NC
                                                                                                                                                                                                                                                                                                                                                                                                         V207
                                                                                                                                                                                                                                                                                                                                                                                                                                 V215
                                                                                                                                                                                                                                                                                                                                                                                                                                                          V208 NC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         V216 NC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          V209 NC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        V210
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          V214 NC




                                                                                                                                                                                                                                                                                                                                                        V205
                                                                                                                                E                                         1                               2                          3                             F3                                                                                                                                                                                                                                                                                                                                                                                                                                        E
                                                                                                                                                                      KEYPAD                            KEYPAD                   KEYPAD                        KEYPAD                                                                            R201                   R202                      R203                R204                        R206                           R207                       R208                                 R209                     R211                     R212
                                                                                                                                                                     12                             1            2              12                            12                                                                                                        82                                                                                                                                  3.3                                                           22                       22
                                                                                                                                                                                                                                                                                                                                                 0                                                100                 75                          3.3                            39                                                              3.3

                                                                                                                                                       KEY_ROW(3)
                                                                                                                                                                                                                                                                                                 KEY_BL2




This Document can not be used without Samsung's authorization
                                                                                                                                                                                                                                                                                                  KEY_BL




                                                                SAMSUNG Proprietary-Contents may change without notice
                                                                                                                                                                          4
                                                                                                                                                                      KEYPAD
                                                                                                                                                                                                          5
                                                                                                                                                                                                        KEYPAD
                                                                                                                                                                                                                                     6
                                                                                                                                                                                                                                 KEYPAD
                                                                                                                                                                                                                                                                   0
                                                                                                                                                                                                                                                               KEYPAD

                                                                                                                                                                     12                             12                          12                            12                     ZD202
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    R233                    100K
                                                                                                                                                       KEY_ROW(4)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 U202
                                                                                                                                                                                                                                                                                                                                                                                                                VCCD                         F209




                                                                                                                                                                                                                                                                           6
                                                                                                                                                                                                                                                                                 5
                                                                                                                                                                                                                                                                                          4
                                                                                                                                                                          7
                                                                                                                                                                      KEYPAD
                                                                                                                                                                                                          8
                                                                                                                                                                                                        KEYPAD
                                                                                                                                                                                                                                     9
                                                                                                                                                                                                                                 KEYPAD
                                                                                                                                                                                                                                                                   F4
                                                                                                                                                                                                                                                               KEYPAD
                                                                                                                                                                     12                             12                          12                            12                                                                                                                                                                                                                                    1                               2
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        VCC   OUT                                                                       FLIP_SNS
                                                                                                                                                                                                                                                                                                                                                                                                                                                                     C240                                  GND                                                 C239
                                                                                                                                                       KEY_ROW(5)                                                                                                                                                                                                                                                                                                                                                                                              100NF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                    100NF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  3




                                                                                                                                                                                                                                                                                 2


                                                                                                                                                                                                                                                                            1
                                                                                                                                                                                                                                                                                          3




                                                                                                                                                                                                                                                                                7
                                                                                                                                                                                                                                                                                     8
                                                                                                                                F                                                                                                                                                                                                 KEYPAD                                                                                                                                                                                                                                                                                                                                                                     F




                                                                                                                                                   1                                                                      2                                                          3                                             4                                                                              5                                                                                                   6                                                                                             7                                                         8
SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams




                                                                  1                        2                                      3                                      4                                      5                              6                                             7                       8
                                                              A                                                                                                                                                                                                                                                          A
                                                                                                                                                                                                                                                                                          VCCD
                                                                                                      VCCD           VCCD
                                                                                                                                                                                                                                                   VBAT




                                                                                                                                                                                                                                                                                                                                    SAMSUNG Proprietary-Contents may change without notice
                                                                                                                                                                                                                                                                                   R301
                                                                                                              R302         R303




                                                                                                                                                                                                                                                                                                                                                                                             This Document can not be used without Samsung's authorization
                                                                                                                                                                                                                                                                                   47K
                                                                                                             47K          47K
                                                                                                                                                                                                                            R304      1K                                                          DLC_DETECT
                                                                      DLC_DETECT                                                                                                                                                                                                                                1
                                                                                                                                                                                                                            R305      1K                                                           SDS_TXD
                                                                         SDS_TXD                                                                                                                                                                                                                                2
                                                                                                                                                                                                                            R306      1K                                                           SDS_RXD
                                                              B          SDS_RXD                                                                                                                                                                                                                                3        B
                                                                                                                                                                                                                            R318      1K                                                            DEBUG_TXD
                                                                       DEBUG_TXD                                                                                                                                                                                                                                4
                                                                                                                                                                                                                            R319      1K                                                            DEBUG_RXD
                                                                      DEBUG_RXD                                                                                                                                                                                                                                 5
                                                                                                                                                                                                                                                                                                   VCCD
                                                                                                                                                                                                                             R320     1K                                                            DEBUG_DTR   6
                                                                      DEBUG_DTR                                                                                                                                                                                                                                 7
                                                                                                                                                                                                                                                                                                   GND
                                                                                                                                                                                                                             R321     1K                                                            DEBUG_CTS   8
                                                                      DEBUG_CTS                                                                                                                                                                                                                                 9
                                                                                                                                                                                                                             R322     1K                                                            DEBUG_RTS
                                                                      DEBUG_RTS                                                                                                                                                                                                                                 10
                                                                                                                                                                                                                                                                                                   GND
                                                                                                                                                                                                                            R309      1K                                                            DEBUG_DCD   11
                                                                      DEBUG_DCD                                                                                                                                                                                                                                 12
                                                                                                                                                                                                                            R310      1K                                                            JIG_ON
                                                                          JIG_ON                                                                                                                                                                                                                                13
                                                                                                                                                                                                                                                                                                   VTEST
                                                                                                                                                                                                                            R312      1K                                                            DEBUG_DSR   14
                                                                      DEBUG_DSR                                                                                                                                                                                                                                 15
                                                                                                                                                                                                                            R313      1K                                                            DEBUG_RI
                                                                        DEBUG_RI                                                                                                                                                                                                                                16
                                                                                                                                                                                                                                                                                                   VEXT
                                                                                                                                                                                                                                                                                                   VEXT         17
                                                                                                                                                                                                                                                                                                   GND          18
                                                                                    R317              TA_VEXT
                                                                                               V302




                                                                                                                                                                                                                                                                                                   CF           19
                                                                                    NC                                                                                                                                                 CF
                                                                                                                                                                                                                                                                                                   VF           20
                                                                                                                                                  C306                                                                              BP_VF                                                                       21
                                                                                                                                                                                                                                                                                                   VBAT
                                                                           DAICK                                                                  10UF                                                                                                                                                          22
                                                              C                                                                                                                                                                                                                                                          C
                                                                                                                                          ZD304




                                                                                                      R314           NC
                                                                           DAIRN                                                  C301            10V                                                                                                                                                           23
                                                                                                      R315           NC           100NF
                                                                                                                                                                1   34           5   134           5   13           45
                                                                           DAIDO                                                                                                                                                                                  C302     C303           C304                  24
                                                                                                      R316           NC
                                                                            DAIDI




                                                                                                                                                         V301
                                                                                                                                                                                                                                                                  100NF1    00NF          100NF




                                                                                                                                                                                                                                                          ZD305
                                                                                                                                                                                                                                            C305
                                                                                                                                                                                                                                            33PF
                                                                                                                                                                             ZD303             ZD301                ZD302
                                                                                                                                                                         2                 2                2




                                                                                                                                                                                                                                                                                                                             2-13
                                                              D                                                                                                                                                                                                                                                          D
                                                                                                                                                                                           I/F CONNECTOR
                                                              E                                                                                                                                                                                                                                                          E
                                                              F                                                                                                                                                                                                                                                          F
                                                                  1                        2                                      3                                      4                                      5                              6                                             7                       8
                                                                                                                                            1                                                  2                                                           3                                     4                                     5                                                                             6                                                                                              7                                              8


                                                                                                                                                                                                                                          VBAT




                                                                                                                                                                                                                                                                                                                                                                        D(2)
                                                                                                                                                                                                                                                                                                                                                                                   D(3)
                                                                                                                                                                                                                                                                                                                                                                                                D(4)
                                                                                                                                                                                                                                                                                                                                                                                                       D(5)
                                                                                                                                                                                                                                                                                                                                                                                                                 D(6)
                                                                                                                                                                                                                                                                                                                                                                                                                           D(7)
                                                                                                                                                                                                                                                                                                                                                                                                                                      VIB_EN
                                                                                                                                                                                                                                                                                                                                                                                                                                                   YMU_SPK1 N
                                                                                                                                                                                                                                                                                                                                                                                                                                                                    YMU_SPK1 P
                                                                                                                                                                                                                             F401
                                                                                                                                A                                                                                                                                                                                                                                                                                                                                                                                                                                         A



                                                                                                                                                                            C431                                                                                  C432
                                                                                                                                                                            150PF                     U401                                                        150PF                                                                                             25 24 23 22 21 20 19 18 17
                                                                                                                                                                                                                                                  R402




                                                                                                                                                                                                                                                                                                                                                                        D2
                                                                                                                                                                                                                                                                                                                                                                                   D3
                                                                                                                                                                                                                                                                                                                                                                                               D4
                                                                                                                                                                                                                                                                                                                                                                                                       D5
                                                                                                                                                                                                                                                                                                                                                                                                                D6
                                                                                                                                                                                                                                                                                                                                                                                                                           D7
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           VBAT




                                                                                                                                                                                                                                                                                                                                                                                                                                      MTR
                                                                                                                                                    R4011     2                        10                             1                           100K                                                                                                        26                                                                                                                     16
                                                                                                                                      AOUTAP                                                   NO2V              +                                                        R403                                          D(1)                                       D1                                                                                           SPVSS
                                                                                                                                                                                                                                                                          12




                                                                                                                                                                                                                                                                                                                                                                                                                                                   SPOUT2
                                                                                                                                                                                                                                                                                                                                                                                                                                                                    SPOUT1
                                                                                                                                       SPK1P
                                                                                                                                                                                           9                          2                                                               AOUTAN                            D(0)
                                                                                                                                                                                                                                                                                                                                                              27                                                                                                                     15
                                                                                                                                                                                               COM2          NO1                                                                                                                                                   D0                                                                                           SPVDD
                                                                                                                                                       C433   1UF                                                                                                                                                                                                                                                                                                                                           R404
                                                                                                                                     JIG_SPKP                                              8 IN2          COM1 3                                                                      SPK1N                          CP_WEN                                                                                                                                               EQ3 14
                                                                                                                                                                                                                                                                C434       1UF                                                                                                                                                                                                                              150K                        R405
                                                                                                                                                                                                                                                                                      JIG_SPKN
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        82K
                                                                                                                                    YMU_SPK1P                                              7 NC2              IN1 4                                                                   AUDIO_AMP_EN                   YMU_EN
                                                                                                                                                                                                                                                                                                                                                              29 /CS                                          U402                       EQ2 13                                                                         C401
                                                                                                                                                                                           6                      5                                                                                                                                           30                                                                              12                                             C403                       150PF                             C402
                                                                                                                                                                                             GND             NC1                                                                      YMU_SPK1N                         A(0)                                     A0                                                                      EQ1                                                                                                              100NF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             22NF
                                                                                                                                                                                                                                                                                                                                                                                                                                              11                                                             R406
                                                                                                                                B                                                                                                                                                                                    CP_OEN                                                                                                          HPOUT-R                                                                                                                              B
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             33K                               C405
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        R407
                                                                                                                                                                                                                                                                                                                                                              32                                                                              10                                                                                               4.7UF
                                                                                                                                                                                                                                     C404                                                                                                                          IOVDD                                                        HPOUT-L/MON O                                                                           56K
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               6.3V
                                                                                                                                                                                                                                    100NF




                                                                                                                                                                                                                                                                                                                                                                        CLKI
                                                                                                                                                                                                                                                                                                                                                                                   LED
                                                                                                                                                                                                                                                                                                                                                                                                                NC
                                                                                                                                                                                                                                                                                                                                                                                                                           PLLC
                                                                                                                                                                                                                                                                                                                                                                                                                                      VDD
                                                                                                                                                                                                                                                                                                                                                                                                                                                   VSS
                                                                                                                                                                                                                                                                                                                                                                                                                                                                    VREF
                                                                                                                                                                                                                                                                                                                                       C406         C407
                                                                                                                                                                                                                                                                 JIG_MIC                                                                                                                                                                                                                                    C408
                                                                                                                                                                                                                                                                                                                                       47PF         47PF            1          2                              56                  7            8                9                                           4.7NF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                             C409
                                                                                                                                                                                                                                                                                                                                                                                                                                                                             100NF




                                                                                                                                                                                                                                                                                                                                                                                                              NC
                                                                                                                                                                                                                                                                                                                                                                                                                         3.3K
                                                                                                                                                                                                                                    C435
                                                                                                                                                                                                                                    100NF
                                                                                                                                                                                                                    C410                          C411                    MIC401                                                                                                                                                                                                      VCCD
                                                                                                                                                                                              R408
                                                                                                                                                                                                                    100NF                         NC                   ICEBERG-FPCB
                                                                                                                                                                                           6.8K,1%




                                                                                                                                                                                                                                                                                                                                                                                                              R409
                                                                                                                                                                                                                                                                                                                                                                                                                        R410
                                                                                                                                          MICIN
                                                                                                                                                                     R411
                                                                                                                                         MICOUT
                                                                                                                                                                    82K,1%
                                                                                                                                                                                            C412
                                                                                                                                                                                                                                                                           R412                                                                                                                                                                                        C413
                                                                                                                                                                                            NC                                        R413                     C415                                                                                                                                                             C416                                                      C417
                                                                                                                                                                                                                                                                           1.8K                                                                                                                                                                                        4.7UF
                                                                                                                                C                                    C414                                                             2.2K                     33PF                                                                                                                                                             1NF                                                       100NF                                                                           C
                                                                                                                                                                                                                                                                                                                                   CLK13M_YMU                                                                                                                          6.3V
                                                                                                                                                                     330PF




                                                                                                                                                                                                                                                                                                                                                                                   LED_DATA
                                                                                                                                                                                       VCCA




                                                                                                                                                                                                                                                                                                                                       YMU_IRQ
                                                                                                                                                                                                                                                                                                                                                                                              R425
                                                                                                                                                                                    R414                                                                                                                                                      RST
                                                                                                                                                                                     680
                                                                                                                                                                                                                                                                                                                                                                                        12K
                                                                                                                                                                                                                                                                                                                                                           C430




                                                                                                                         2-14
                                                                                                                                                                                                                                                                                                                                                           22NF                                                                                                                                                                                         C442
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        22PF
                                                                                                                                                                                C420                         C419
                                                                                                                                                                                33UF                                                                                                                                                                                                                                                                                               C440             22UF
                                                                                                                                                                                                             NC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    4V
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        F403
                                                                                                                                                                                                                                                                                                                                F405
                                                                                                                                D                                                                                                                                                                                                                                                                                                                                                                                                                                         D
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   C436             22UF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    4V                                                 CN401
                                                                                                                                                                                                                                                                                                                                           AOUTBN                                                                                                                                                                                                 2
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  6
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                F404
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  5
                                                                                                                                                                                                                                                                                                                                                                                                       R417                           10K
                                                                                                                                                                                                                                                                                                                                           JACK_IN                                                                                                                                                                                                4
                                                                                                                                                                                                                          R415
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  3
                                                                                                                                                                                                                       1.5K,1%
                                                                                                                                                                                                                                                                                                                                           AOUTBP                                                                                                                                                                                                 1
                                                                                                                                                                                                                                                                                                                                                                                                                                                            C437                 22UF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 4V
                                                                                                                                                                                                                                                                                                                                                                                              C443
                                                                                                                                                                                                   R416             C423                                                                                    ZD403       C424
                                                                                                                                                                                                                                                                                                                                                                                              27PF
                                                                                                                                                                                                                                                                                                                1       270PF
                                                                                                                                            AUXIN
                                                                                                                                                                                                                                                                                                                                                                                                                                                            C441                 22UF                                                          F402
                                                                                                                                                                                           3.3K,1%                                                                                                                                                                                                                                                                               4V
                                                                                                                                                                                                                     100NF


                                                                                                                                                                    R418
                                                                                                                                E                                 47K,1%                                                                                                                                                                                                                                                                                                                                                                                                  E
                                                                                                                                                                                                                                                                                                                                                            C444                          ZD402                                 C425                       C426                                            R426
                                                                                                                                          AUXOUT
                                                                                                                                                                                                                                                                                                                                                            27PF                              1                                 1NF                        1NF                                             1K                                                      C445
                                                                                                                                                                                                      VCCA                                       VCCD                                                                                                                                                                                                                                                                   C438     C427                             8.2NF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        10NF     33PF
                                                                                                                                                              C428                   C429
                                                                                                                                                              NC                     270PF




This Document can not be used without Samsung's authorization
                                                                SAMSUNG Proprietary-Contents may change without notice
                                                                                                                                                                                                          R419                                      R420
                                                                                                                                                                                                          18K                                       1K
                                                                                                                                                                                                                             Q401
                                                                                                                                                                                                                                      7
                                                                                                                                                                                                                                                               EAR_SWITCH                            R421     L401
                                                                                                                                                                                                                                             3                                                       NC       82nH
                                                                                                                                                                                                                             2
                                                                                                                                                                                                                                             1
                                                                                                                                                                                                          R423
                                                                                                                                                                                                          10K
                                                                                                                                                                                           C439
                                                                                                                                                                                                                                                                                                                                                           AUDIO
                                                                                                                                F                                                                                                                                                                                                                                                                                                                                                                                                                                         F
                                                                                                                                                                                           10NF




                                                                                                                                            1                                                  2                                                           3                                     4                                     5                                                                             6                                                                                              7                                              8
                                                                                                                                      1                                       2                                                       3                                                     4                                          5                                                     6                                              7                                           8



                                                                                                                                                                                                                                                                                                                                                                                                 U502
                                                                                                                                                                                                                                                                                                                                   D(0:15)                                                                                         A(1)
                                                                                                                                                                                                                                                                                                                                                                 D(0)
                                                                                                                                                                                                                                                                                                                                                                 D(1)

                                                                                                                                                                                                                                                                                                                                                                 D(2)
                                                                                                                                                                                                                                                                                                                                                                 D(3)
                                                                                                                                A                                                                                                                                                                                                                                D(4)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    A
                                                                                                                                                                              VCCD                          VCC_1.8A
                                                                                                                                                                                                                                                                                                                                                                 D(5)
                                                                                                                                                                                                                                                                                                                                                                 D(6)

                                                                                                                                                                                                                                                                                                                                                                 D(7)                                                               HVDD
                                                                                                                                                                                                                                                                                                                                                                 D(8)
                                                                                                                                                                                                                                                                                                                                                                 D(9)

                                                                                                                                                                                                                                                                                                                                                                 D(10)
                                                                                                                                                                                                                                                                                                                                                                 D(11)
                                                                                                                                                                                    C503 C502
                                                                                                                                                                                                                                                                                                                                                                 D(12)
                                                                                                                                                                                   100NF 100NF                  C501
                                                                                                                                                                                                                                                                                                                                                                 D(13)
                                                                                                                                                                                                                100NF                     U500                                                                                                                   D(14)
                                                                                                                                                                                                                                                                                            D(0:15)
                                                                                                                                                                                                                                                                                                                                                                 D(15)

                                                                                                                                                                                                                        B5                                      H2       D(0)
                                                                                                                                                                                                                             VCC1                       D0                                                                     LCD_AD(0:7)
                                                                                                                                                                                                                        L4                                      H3       D(1)                                                                                    LCD_AD(0)   A12
                                                                                                                                                                                                                             VCC2                       D1                                                                                                                         FPDAT0
                                                                                                                                                                                                                        B6                                      G3       D(2)                                                                                    LCD_AD(1)   B12                                  A10
                                                                                                                                                                                                                             VCC2                       D2                                                                                                                         FPDAT1                 GPIO0                                    SCL
                                                                                                                                                                                                                        K6                                      H4       D(3)                                                                                    LCD_AD(2)   F12                                  P12
                                                                                                                                                                                                                             VCC2                       D3                                                                                                                         FPDAT2                 GPIO1                                    SDA
                                                                                                                                                                                                                        J8                                      J5       D(4)                                                                                    LCD_AD(3)   E14                                  M12
                                                                                                                                                                                                                             VCCQ                       D4                                                                                                                         FPDAT3                 GPIO2              R511 R512
                                                                                                                                                                                                                        K7                                      G5       D(5)                                                                                    LCD_AD(4)   E13                                  N12
                                                                                                                                                                                                                             VCCQ                       D5                                                                                                                         FPDAT4                 GPIO3              4.7K 4.7K
                                                                                                                                                                                                                        L3                                      J6       D(6)                                                                                    LCD_AD(5)   E12                                  M13
                                                                                                                                                                    A(1:22)                                                  VCCQ                       D6                                                                                                                         FPDAT5                 GPIO4
                                                                                                                                B                                                                                                                               H7       D(7)                                                                                    LCD_AD(6)   D14                                  M14                                                                               B
                                                                                                                                                                                                                                                        D7                                                                                                                         FPDAT6                 GPIO5
                                                                                                                                                                                                    A(1)                G1                                      G2       D(8)                                                                                    LCD_AD(7)   G14                                  B11
                                                                                                                                                                                                                             A0                         D8                                                                                                                         FPDAT7                 GPIO6
                                                                                                                                                                                                    A(2)                F1                                      J3       D(9)                                                                                                C12                                  L14
                                                                                                                                                                                                                             A1                         D9                                                                                                                         FPDAT8                 GPIO7
                                                                                                                                                                                                    A(3)                E1                                      G4      D(10)                                                                                                G12                                  B10
                                                                                                                                                                                                                             A2                        D10                                                                                                                         FPDAT9                 GPIO8
                                                                                                                                                                                                    A(4)                D1                                      J4      D(11)                                                                                                K13                                  L13
                                                                                                                                                                                                                             A3                        D11                                                                                                                         FPDAT10                GPIO9
                                                                                                                                                                                                    A(5)                B1                                      H5      D(12)                                                                                                K14                                  P2
                                                                                                                                                                                                                             A4                        D12                                                                                                                         FPDAT11               GPIO10
                                                                                                                                                                                                    A(6)                C1                                      G6      D(13)           VCCD                                                                                 J13                                  N2
                                                                                                                                                                                                                             A5                        D13                                                                                    VCCD                                 FPDAT12               GPIO11
                                                                                                                                                                                                    A(7)                F2                                      H6      D(14)                                                                                                J12                                  N1
                                                                                                                                                                                                                             A6                        D14                                                                                                                         FPDAT13               GPIO12                      DIM_EN
                                                                                                                                                                                                    A(8)                E2                                      J7      D(15)                                                                                                H12                                  N14
                                                                                                                                                                                                                             A7                        D15                                                                                                                         FPDAT14               GPIO13                      BACKLIGHT_EN
                                                                                                                                                                                                    A(9)                F6                                                                                                                                                   D13                                  N13
                                                                                                                                                                                                                             A8                                                                                                                                                    FPDAT15               GPIO14                      FKEY_EN
                                                                                                                                                                                                    A(10)               D7                                      C3                                                                               R508            0           H13                                  B1
                                                                                                                                                                                                                             A9                      256MB                                                                     VCC_1.8A                                            FPDAT16               GPIO15                      CAMPWR_ON
                                                                                                                                                                                                    A(11)               E7                                      C7                                                                                                           H14                                  A13
                                                                                                                                                                                                                             A10                     128MB                                                   A(23)                                                                 FPDAT17               GPIO16
                                                                                                                                                                                                    A(12)               B8                                      D3                                                                                                                                                B14
                                                                                                                                                                                                                             A11                     512MB                                                                                                                                               GPIO17
                                                                                                                                                                                                    A(13)               C8                                      D6                                                                                                            L5                                  B13
                                                                                                                                                                                                                             A12                     P-CS#                                                                                                                       COREVDD1                GPIO18
                                                                                                                                                                                                    A(14)               D8                                      E3                                                                                                           D10                                  A2           VCCD
                                                                                                                                                                                                                             A13                       1GB                                                                                                                       COREVDD2                GPIO19
                                                                                                                                                                                                    A(15)               F7                                                                                                                                                   H11                                  P13
                                                                                                                                                                                                                             A14                                                                                                                                                 COREVDD3                GPIO20
                                                                                                                                                                                                    A(16)               E8                                 K2                                                                                                                                                     B2
                                                                                                                                                                                                                             A15                       RFU                                                                             C509                                                              GPIO21
                                                                                                                                                                                                    A(17)               F8                             RFU K3                                                                                                                G11
                                                                                                                                                                                                                             A16                                                                                                       100NF                                       CNF0
                                                                                                                                                                                                    A(18)               D2                                 J1                                                                                                                L11                                L4
                                                                                                                                                                                                                             A17                     S-CS1                                                   CP_CSRAMEN                                                            CNF1                 HIOVDD1
                                                                                                                                C                        VCCD                 VCCD     VCC_1.8A     A(19)               B2                                 C5                   R507    0                                                             R509           NC      K11                                F4                                                                                  C
                                                                                                                                                                                                                             A18                     S-CS2                                                                                                                         CNF2                 HIOVDD2
                                                                                                                                                                                                    A(20)               B3                                 K4                                                                                                                 D9                                D7
                                                                                                                                                                                                                             A19                     S-VCC                                                                                                                         CNF3                 HIOVDD3                     C512
                                                                                                                                                                                                    A(21)               E6                                                                                                                                                   E11                                D5
                                                                                                                                                                                                                             A20                           B4                                                                                                                      CNF4                 HIOVDD4                     100NF
                                                                                                                                                                                                    A(22)               B7                                                                                                                                                   D11
                                                                                                                                                                                                                             A21                       VSS                                                                                                                         CNF5
                                                                                                                                                                                                                                                                                 C506                                                                                        L10                                F11
                                                                                                                                                                                                                                                       VSS C4                                                                                                                      CNF6                 PIOVDD1
                                                                                                                                                                                                                        D4                             VSS L2                    NC                                                                                                                             C10
                                                                                                                                                                                                                           VPP/VPEN                                                                                                                                                                     PIOVDD2
                                                                                                                                                                                                                        C6                             VSS L5                                                                                                                M1                                 L12
                                                                                                                                                                                                                           CLK                                                                                                CLK32K                                            CLKI                    PIOVDD3
                                                                                                                                                                                                                        G7                             VSS L6                                                                                                                C9                                 D8
                                                                                                                                                                                                                           WAIT                                                                                                                                                 TESTEN                  PIOVDD4
                                                                                                                                                                                                                                                       VSS L7                                                                                                         C510
                                                                                                                                                                                                                                                                                                                                                                                                                                                      CAM_D(0:7)
                                                                                                                                                                                                                        K5                                                                                                                                           100NF   J14                                  N9    CAM_D(0)
                                                                                                                                                                                                                             P-VCC                     VSS L8                                                                                                                      FPA0                 CM1DAT0
                                                                                                                                                                                       R504        47K                  K8                                 L1                                                                                                                K12                                  P9    CAM_D(1)
                                                                                                                                                                                                                             P-MODE                    VSS                                                                                                                         FPSO                 CM1DAT1
                                                                                                                                                                                                                        H1                                                                                                                                                    A9                                  N10   CAM_D(2)
                                                                                                                                                     R506           CP_OEN                                                   R-OE#                                                                                                                                                 FPVIN1               CM1DAT2
                                                                                                                                                                                                                        D5                                      A1                                                                                                            B9                                  M10   CAM_D(3)
                                                                                                                                                                    CP_WEN                                                   R-WE#                         DU                                                                                                                      FPVIN2               CM1DAT3




                                                                                                                         2-15
                                                                                                                                                        0                                                               F3                                 DU   A2                                                                                                           G13                                  M11   CAM_D(4)
                                                                                                                                                                UPPER_BYTE                                                   R-UB#                                                                                                                           XCS                   FPCS1X               CM1DAT4
                                                                                                                                                                                                                        C2                                      A7                                                                                                           A11                                  N11   CAM_D(5)
                                                                                                                                                                       A(0)                                                  R-LB#                         DU                                                                                                                      FPCS2X               CM1DAT5
                                                                                                                                                                                                                        E4                                      A8                                                                                                           F13                                  P10   CAM_D(6)
                                                                                                                                                                                                                             WP#                           DU                                                                                                                      FPSCLK               CM1DAT6
                                                                                                                                                                                                                        F5                                      M1                                                                                                           C13                                  P11   CAM_D(7)
                                                                                                                                                                                                                             WE#                           DU                                                                                              VSYNC                   FPFRAME              CM1DAT7
                                                                                                                                                     R505                                                               E5                                      M2                                                                                                           F14
                                                                                                                                                                                                                             ADV#                          DU                                                                                                                      FPSHIFT
                                                                                                                                                      NC                                                                F4                                 DU   M7                                                                                                           D12                                  P4
                                                                                                                                                                MEM_RST                                                      RST#                                                                                                                          HSYNC                   FPLINE               CM2DAT0
                                                                                                                                D                                                                                       K1                                 DU   M8                                                                                                            N8                                  N4                                                                                D
                                                                                                                                                             CP_CSROMEN                                                      CE#1                                                                                                                         VREFER                   CM1VREF              CM2DAT1
                                                                                                                                                                                                                        G8                                                                                                                                                    M8                                  N5
                                                                                                                                                            CP_CSROM2EN                                                      CE2                                                                                                                          HREFER                   CM1HREF              CM2DAT2
                                                                                                                                                                                                                        J2                                 NC   1                                                                                                             M9                                  M5
                                                                                                                                                                                                                             OE#1                                                                                                                          P_CLK                   CM1CLKIN             CM2DAT3
                                                                                                                                                                                                                        H8                                 NC   2                                                                      R510           0                       P8                                  L6
                                                                                                                                                                                                                             OE#2                                                                                    CM_CLK                                                        CM1CLKOUT            CM2DAT4
                                                                                                                                                                                                                                                                                                                                                                              N7                                  M6
                                                                                                                                                                                                                                                                                                                                                                                   CM2VREF              CM2DAT5
                                                                                                                                                                                                                                                                                                                                                                              P6                                  P5
                                                                                                                                                                                                             C505                                                                                                                                                                  CM2HREF              CM2DAT6
                                                                                                                                                                                                                                                                                                                                    C511                                      M7                                  N6
                                                                                                                                                                                                             10NF                                                                                                                                                                  CM2CLKIN             CM2DAT7
                                                                                                                                                                                                                                                                                                                                    20PF                                      P7
                                                                                                                                                                                                                                                                                                                                                                                   CM2CLKOUT
                                                                                                                                                                                                                                                                                                                                                                                                                                                           R513            NC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       UPPER_BYTE
                                                                                                                                                                                                                                                                                                                                               R519          0
                                                                                                                                                                                                                                                                                                                                                                                                                                                           R514            0

                                                                                                                                                                                                                                                                                                                                                                              K4                                                                           R515N               C
                                                                                                                                                                                                                                                                                                                                                                                   VSS1                                                                                                MLCD_EN
                                                                                                                                                                                                                                                                                                                                                                              G4
                                                                                                                                                                                                                                                                                                                                                                                   VSS2
                                                                                                                                                                                                                                                                                                                                                                              D6                                                                            R516
                                                                                                                                                                                                                                                                                                                                                                                   VSS3                                            CP_WEN
                                                                                                                                                                                                                                                                                                                                                                              L7                                                                            0
                                                                                                                                                                                                                                                                                                                                                                                   VSS4
                                                                                                                                                                                                                                                                                                                                                                              C8
                                                                                                                                                                                                                                                                                                                                                                                   VSS5
                                                                                                                                                                                                                                                    VBAT                                                                                                                      L9
                                                                                                                                                                                                                                                                                                                                                                                   VSS6
                                                                                                                                                                                                                                                                                                                                                                             J11                                                                                   R517N           C
                                                                                                                                                                                                                                                                                                                                                                                   VSS7                                                                                                CP_OEN
                                                                                                                                E                 R503                                                                                                                                                                                                                                                                             LCDC_RST                                                         E
                                                                                                                                                  10                                                                                                                                                                                                                          A1
                                                                                                                                    FLASH_RESET                                   MEM_RST                                          U501                                                                                                                                            NC1                                             VCCD         VCC_1.8A
                                                                                                                                                                                                                                                                                                                                                                              P1                                                                                   R518
                                                                                                                                                                                                                                                                                                                                                                                   NC2
                                                                                                                                                                                                                             1                  5                                                                                                                            A14                                  C14                                              0
                                                                                                                                                                                                  CAMPWR_ON                      EN       IN                              F501                                                                                                     NC3                  SCANEN
                                                                                                                                                     C504                                                                                                                                                                                                                    P14
                                                                                                                                                                                                                                                                                                                                                                                   NC4




This Document can not be used without Samsung's authorization
                                                                                                                                                     10NF
                                                                                                                                                                                                                             2                                                                                                                                                E5                                N3
                                                                                                                                                                                                                                 NC                                                                                                                                                NC5                   PLLVSS




                                                                SAMSUNG Proprietary-Contents may change without notice
                                                                                                                                                                                                                                                                                                                                                                               1                                M4
                                                                                                                                                                                                                                                                                                                                                                                   NC6                   PLLVDD
                                                                                                                                                                                                                             3                  4                                                                                                                              2                                P3
                                                                                                                                                                                                                                 GND      OUT                                                         HVDD                                                                         NC7                      VCP
                                                                                                                                                                                                                                                                                                                                                                                                                L8
                                                                                                                                                                                                                                                                                                                                                                                                         CIOVDD

                                                                                                                                                                                                                                                                                                                                                                                                                                           C514
                                                                                                                                                                                                                                                                                                                                                                                                                           C513           100NF
                                                                                                                                                  R520                                                                                      C507                 C508                            MEMORY                                                                                                                   100NF
                                                                                                                                                                                                                                           100NF                 33UF
                                                                                                                                                  10K                                                                                                            6.3V
                                                                                                                                            RST                                   LCDC_RST


                                                                                                                                                     C515
                                                                                                                                F                    NC                                                                                                                                                                                                                                                                                                                                             F




                                                                                                                                      1                                       2                                                       3                                                     4                                          5                                                     6                                              7                                           8
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams
                                                                                                                                    1                                  2                                            3                                     4                                                   5                                                                                                    6                                                                         7                                                 8                                                  9                                          10                                            11                      12




                                                                                                                                                VCCD                                   VCC_1.8A                                                                                                                                                                                                                                                                                                                                                                                                                                                                           JTAG
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                CN602
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             TRST_1    17                 1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          TRST          1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                TR_RST                       TDO_1     18 TDO          2 2
                                                                                                                                A                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             DSP_TDO                        TDI_1     19                 3                             A
                                                                                                                                        C603   C604    C605   C606   C601              C607       C602                                                                                                                                                                                                                                                                                                                                                                                                                                                                     TDI         3
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               DSP_TDI                       TMS_1     20 TMS          4 4
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               DSP_TMS                       TCK_1     21                 5
                                                                                                                                        10NF   10NF    10NF                            33NF                                                                                                                                                                                                                                                                                                                                                                                                                                    DSP_TCK                                    TCK          5
                                                                                                                                                              10NF                                220NF                                                                                                                                                                                                                                                                                                                                                                                                                                                      F_WE_1    22                 6
                                                                                                                                                                     220NF                                                                                                                                                                                                                                                                                              VCC_1.8A          VCCD        VRTC                                                                                                                                                                 F-WE        6
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              DSP_RWN                                  23                 7     GND_1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              VBAT                                         V_BATT GND
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       24                 8
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          GND    V_BUS
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       25                 9
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              JIG_ON                                       HP/POWER D+
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       26                 10
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          RXD         D-
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              C608           C609                                                                                                             SDS_RXD                                  27                 11
                                                                                                                                                                                                                            LED_DATA                                                                                                                                                                                                                                                                                                                                                                                          SDS_TXD                                     TXD     SPK+                  JIG_SPKP
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             100NF           22NF                                                                                                                                                      28                 12
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           28      SPK-
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       29                 13            JIG_SPKN
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           29      MIC+                 JIG_MIC
                                                                                                                                                                                                                                                                                        VCC_1.8A                                                                                                                                         C610                                                                                                                                                                                                                          30                 14
                                                                                                                                                                                                                                                                                                                                                                                                                                                          C611                                                                                                                                                                                                             30      MOT+
                                                                                                                                                                                                                                                                                                                                                                                                                                         27PF                                                                                                                                                                                                                          31                 15            V_MOT
                                                                                                                                                                                                                                                                                                                                                                                                                                                          10NF                                                                                                                                                                                                            31          15
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       32                 16
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          ANT         16
                                                                                                                                                                                                                                  A(22)                                                                                                                                                                                                                                                                                                                                                                                               ANT
                                                                                                                                                                                                                                                                                                                                                                                                 VCC_1.8A                      VCCD
                                                                                                                                                                                                                                                                          R601                                                                                                                                                                                                                                                                                                                                                                                                JTAG-32PIN
                                                                                                                                                                                                                                                                          47K                                                                                                                                                                                                                                                                                VREF



                                                                                                                                B                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       B
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             CLK13M_TR
                                                                                                                                                                                                                                  A(23)                                                                                                                                                                                                                                                                                                                      TR_RST


                                                                                                                                                                                                                                                      R610
                                                                                                                                                                                                                                                      47K




                                                                                                                                                                                                                                                                                    1
                                                                                                                                                                                                                                                                                    2
                                                                                                                                                                                                                                                                                                        N15
                                                                                                                                                                                                                                                                                                        L13
                                                                                                                                                                                                                                                                                                        L17
                                                                                                                                                                                                                                                                                                              L9
                                                                                                                                                                                                                                                                                                              J11
                                                                                                                                                                                                                                                                                                              L8
                                                                                                                                                                                                                                                                                                              M7
                                                                                                                                                                                                                                                                                                              L10
                                                                                                                                                                                                                                                                                                              L6
                                                                                                                                                                                                                                                                                                              K7
                                                                                                                                                                                                                                                                                                              K6
                                                                                                                                                                                                                                                                                                              J7
                                                                                                                                                                                                                                                                                                              H11
                                                                                                                                                                                                                                                                                                              H7
                                                                                                                                                                                                                                                                                                              G10
                                                                                                                                                                                                                                                                                                              G9
                                                                                                                                                                                                                                                                                                              F6
                                                                                                                                                                                                                                                                                                              A3
                                                                                                                                                                                                                                                                                                              A2
                                                                                                                                                                                                                                                                                                                                                                                  C16
                                                                                                                                                                                                                                                                                                                                                                                  A5
                                                                                                                                                                                                                                                                                                                                                                                  R17
                                                                                                                                                                                                                                                                                                                                                                                  R16
                                                                                                                                                                                                                                                                                                                                                                                  T13
                                                                                                                                                                                                                                                                                                                                                                                  R4
                                                                                                                                                                                                                                                                                                                                                                                  R1
                                                                                                                                                                                                                                                                                                                                                                                  G1
                                                                                                                                                                                                                                                                                                                                                                                  E2
                                                                                                                                                                                                                                                                                                                                                                                                                               B14
                                                                                                                                                                                                                                                                                                                                                                                                                               E17
                                                                                                                                                                                                                                                                                                                                                                                                                               E16
                                                                                                                                                                                                                                                                                                                                                                                                                               N16
                                                                                                                                                                                                                                                                                                                                                                                                                               U16
                                                                                                                                                                                                                                                                                                                                                                                                                               U15
                                                                                                                                                                                                                                                                                                                                                                                                                               P8
                                                                                                                                                                                                                                                                                                                                                                                                                               U2
                                                                                                                                                                                                                                                                                                                                                                                                                               M1
                                                                                                                                                                                                                                                                                                                                                                                                                               B1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                          E15
                                                                                                                                                                                                                                                                                                                                                                                                                                                                          G16
                                                                                                                                                                                                                                                                                                                                                                                                                                                                          F10
                                                                                                                                                                                                                                                                                                                                                                                                                                                                          E10
                                                                                                                                                                                                                                                                                                                                                                                                                                                                          C11
                                                                                                                                                                                                                                                                                                                                                                                                                                                                          D8
                                                                                                                                                                                                                                                                                                                                                                                                                                                                          F17
                                                                                                                                                                                                                                                                                                                                                                                                                                                                          C12




                                                                                                                                                                                                                                                                                 NC
                                                                                                                                                                                                                                                                                 NC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  CKI




                                                                                                                                                                                                                                                                                                              VSS
                                                                                                                                                                                                                                                                                                              VSS
                                                                                                                                                                                                                                                                                                              VSS
                                                                                                                                                                                                                                                                                                              VSS
                                                                                                                                                                                                                                                                                                              VSS
                                                                                                                                                                                                                                                                                                              VSS
                                                                                                                                                                                                                                                                                                              VSS
                                                                                                                                                                                                                                                                                                              VSS
                                                                                                                                                                                                                                                                                                              VSS
                                                                                                                                                                                                                                                                                                              VSS
                                                                                                                                                                                                                                                                                                              VSS
                                                                                                                                                                                                                                                                                                              VSS
                                                                                                                                                                                                                                                                                                              VSS
                                                                                                                                                                                                                                                                                                              VSS
                                                                                                                                                                                                                                                                                                              VSS
                                                                                                                                                                                                                                                                                                              VSS




                                                                                                                                                                                                                                                                                                    VDD H14
                                                                                                                                                                                                                                                                                                                                                                                     VDD
                                                                                                                                                                                                                                                                                                                                                                                     VDD
                                                                                                                                                                                                                                                                                                                                                                                     VDD
                                                                                                                                                                                                                                                                                                                                                                                     VDD
                                                                                                                                                                                                                                                                                                                                                                                     VDD
                                                                                                                                                                                                                                                                                                                                                                                     VDD
                                                                                                                                                                                                                                                                                                                                                                                     VDD
                                                                                                                                                                                                                                                                                                                                                                                     VDD
                                                                                                                                                                                                                                                                                                                                                                                     VDD
                                                                                                                                                                                                                                            D(0:15)                                                                                                                                                                                                                                                                                                                                                                    R602




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                VSSA
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                VRTC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                RSTB




                                                                                                                                                                                                                                                                                                                                                                                                                                    VDDE
                                                                                                                                                                                                                                                                                                                                                                                                                                    VDDE
                                                                                                                                                                                                                                                                                                                                                                                                                                    VDDE
                                                                                                                                                                                                                                                                                                                                                                                                                                    VDDE
                                                                                                                                                                                                                                                                                                                                                                                                                                    VDDE
                                                                                                                                                                                                                                                                                                                                                                                                                                    VDDE
                                                                                                                                                                                                                                                                                                                                                                                                                                    VDDE
                                                                                                                                                                                                                                                                                                                                                                                                                                    VDDE
                                                                                                                                                                                                                                                                                                                                                                                                                                    VDDE
                                                                                                                                                                                                                                                                                                                                                                                                                                    VDDE
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                VDDA

                                                                                                                                                                                                                                                                                                                                                                                                                                                                               XVREF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       10K
                                                                                                                                                                                                                                                                D(0)     A6
                                                                                                                                                                                                                                                                              XCP_D0                                                                                                                                                                                                                                                                                                     TR_RST                                        RST




                                                                                                                                                                                                                                                                                                                                                                                                                                                                            VSS_DPLL
                                                                                                                                                                                                                                                                                                                                                                                                                                                                            VDD_DPLL




                                                                                                                                                                                                                                                                                              XPA35_A22
                                                                                                                                                                                                                                                                D(1)     B5
                                                                                                                                                                                                                                                                              XCP_D1




                                                                                                                                                                                                                                                                                             XPA32_CS0N
                                                                                                                                                                                                                                                                D(2)     F8                                                                                                                                                                                                                                     F12
                                                                                                                                                                                                                                                                              XCP_D2                                                                                                                                                                                                                       TDO                                     DSP_TDO
                                                                                                                                                                                                                                                                D(3)     F7                                                                                                                                                                                                                                     F15




                                                                                                                                                                                                                                                                                         XPA36_A23_CS5N
                                                                                                                                                                                                                                                                              XCP_D3                                                                                                                                                                                                                      TRST                                     TR_RST
                                                                                                                                                                                                                                                                D(4)     C5                                                                                                                                                                                                                                     H12
                                                                                                                                                                                                                                                                              XCP_D4                                                                                                                                                                                                                        TDI                                    DSP_TDI                                                      C612
                                                                                                                                                                                                                                                                D(5)     D6                                                                                                                                                                                                                                     G12
                                                                                                                                                                                                                                                                              XCP_D5                                                                                                                                                                                                                       TMS                                     DSP_TMS                                                      NC
                                                                                                                                                                                                                                                                D(6)     E7   XCP_D6                                                                                                                                                                                                                       TCK H13                                 DSP_TCK
                                                                                                                                                                                                                                                                D(7)     D5
                                                                                                                                                                                                                                                                              XCP_D7
                                                                                                                                                                                                                                                                D(8)     C4   XCP_D8                                                                                                                                                                                                                     CKO      G15
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             TP600
                                                                                                                                                                                                                                                                D(9)     B4                                                                                                                                                                                                                                       L12
                                                                                                                                C                                                                                                                                             XCP_D9                                                                                                                                                                                                                  IOBIT#2                                      CHG_ON                                                                                                                                                               C
                                                                                                                                                                                                                                                                D(10)    B3                                                                                                                                                                                                                                       K11                                                  TP602
                                                                                                                                                                                                                                                                              XCP_D10                                                                                                                                                                                                                 IOBIT#1                                      LED_CON
                                                                                                                                                                                                                                                                D(11)    C1                                                                                                                                                                                                                                       N4
                                                                                                                                                                                                                                                                              XCP_D11                                                                                                                                                                                                                   INT#0                                                                                         DSP_INT
                                                                                                                                                                                                                                                                D(12)    C2                                                                                                                                                                                                                                       R12
                                                                                                                                                                                                                                                                              XCP_D12                                                                                                                                                                                                                     IO7                                                                                         DSP_IO
                                                                                                                                                                                                                                                                D(13)    D2                                                                                                                                                                                                                                       U5
                                                                                                                                                                                                                                                                              XCP_D13                                                                                                                                                                                                                    RWN                                                                                          DSP_RWN
                                                                                                                                                                                                                                                                D(14)    D3
                                                                                                                                                                                                                                                                              XCP_D14                                                                                                                                                                                                                                                                 DSP_AB(8:0)
                                                                                                                                                                                                                                                                D(15)    E3                                                                                                                                                                                                                                       T17           DSP_AB(8)
                                                                                                                                                                                                                                            A(0:20)                           XCP_D15                                                                                                                                                                                                                     AB#8
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  T14           DSP_AB(7)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          AB#7
                                                                                                                                                                                                                                                        A(0)            B13                                                                                                                                                                                                                                       R14           DSP_AB(6)
                                                                                                                                                                                                                                                                              XCP_A0_BEON                                                                                                                                                                                                                 AB#6
                                                                                                                                                                                                                                                        A(1)            F11                                                                                                                                                                                                                                       P12           DSP_AB(5)
                                                                                                                                                                                                                                                                              XCP_A1                                                                                                                                                                                                                      AB#5
                                                                                                                                                                                                                                                        A(2)            E14                                                                                                                                                                                                                                       P11           DSP_AB(4)
                                                                                                                                                                                                                                                                              XCP_A2                                                                                                                                                                                                                      AB#4
                                                                                                                                                                                                                                                        A(3)            D15                                                                                                                                                                                                                                       N11           DSP_AB(3)
                                                                                                                                                                                                                                                                              XCP_A3                                                                                                                                                                                                                      AB#3
                                                                                                                                                                                                                                                        A(4)            B15                                                                                                                                                                                                                                       R13           DSP_AB(2)
                                                                                                                                                                                                                                                                              XCP_A4                                                                                                                                                                                                                      AB#2
                                                                                                                                                                                                                                                        A(5)            C14                                                                                                                                                                                                                                       M10           DSP_AB(1)
                                                                                                                                                                                                                                                                              XCP_A5                                                                                                                                                                                                                      AB#1
                                                                                                                                                                                                                                                        A(6)            A16   XCP_A6                                                                                                                                                                                                                      AB#0    U13           DSP_AB(0)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       DSP_DB(15:0)
                                                                                                                                                                                                                                                        A(7)            A15
                                                                                                                                                                                                                                                                              XCP_A7
                                                                                                                                                                                                                                                        A(8)            B17   XCP_A8                                                                                                                                                                                                                      DB#15   P10          DSP_DB(15)                                                                                                                       VCCB
                                                                                                                                                                                                                                                        A(9)            C17                                                                                                                                                                                                                                       R11          DSP_DB(14)
                                                                                                                                                                                                                                                                              XCP_A9                                                                                                                                                                                                                      DB#14
                                                                                                                                                                                                                                                        A(10)           D16                                                                                                                                                                                                                                       T11          DSP_DB(13)
                                                                                                                                                                                                                                                                              XCP_A10                                                                                                                                                                                                                     DB#13
                                                                                                                                                                                                                                                        A(11)           F14                                                                                                                                                                                                                                       U11          DSP_DB(12)                                                                                                             U602
                                                                                                                                                                                                                                                                              XCP_A11                                                                                                                                                                                                                     DB#12
                                                                                                                                                                                                                                                        A(12)           G14                                                                                                                                                                                                                                       M8           DSP_DB(11)
                                                                                                                                D                                                                                                                                             XCP_A12                                                                                                     U601                                                                                                            DB#11                                                                                                                                                                                                         D
                                                                                                                                                                                                                                                        A(13)           G13                                                                                                                                                                                                                                       N8           DSP_DB(10)
                                                                                                                                                                                                                                                                              XCP_A13                                                                                                                                                                                                                     DB#10
                                                                                                                                                                                                                                                        A(14)           G17                                                                                                                                                                                                                                       N7            DSP_DB(9)                                                                                                         2 VO   VS 1
                                                                                                                                                                                                                                                                              XCP_A14                                                                                                                                                                                                                      DB#9
                                                                                                                                                                                                                                                        A(15)           J12                                                                                                                                                                                                                                       P7            DSP_DB(8)
                                                                                                                                                                                                                                                                              XCP_A15                                                                                                                                                                                                                      DB#8                                                                                                                                      GND
                                                                                                                                                                                                                                                        A(16)           K12                                                                                                                                                                                                                                       M6            DSP_DB(7)
                                                                                                                                                                                                                                                                              XCP_A16                                                                                                                                                                                                                      DB#7
                                                                                                                                                                                                                                                        A(17)           K13                                                                                                                                                                                                                                       R7            DSP_DB(6)                                                                                             R603             3
                                                                                                                                                                                                                                                                              XCP_A17                                                                                                                                                                                                                      DB#6
                                                                                                                                                                                                                                                        A(18)           K14                                                                                                                                                                                                                                       T7            DSP_DB(5)                      R604                                                                  1M
                                                                                                                                                                                                                                                                              XCP_A18                                                                                                                                                                                                                      DB#5
                                                                                                                                                                                                                                                        A(19)           L14                                                                                                                                                                                                                                       U7            DSP_DB(4)                      NC
                                                                                                                                                                                                                                                                              XCP_A19                                                                                                                                                                                                                      DB#4
                                                                                                                                                                                                                                                        A(20)           L15                                                                                                                                                                                                                                       P6            DSP_DB(3)
                                                                                                                                                                                                                                                                              XCP_A20                                                                                                                                                                                                                      DB#3
                                                                                                                                                                                                                                                                        L16                                                                                                                                                                                                                                       R6            DSP_DB(2)
                                                                                                                                                                                          A(21)                                                                               XCP_A21                                                                                                                                                                                                                      DB#2
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  U6            DSP_DB(1)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           DB#1
                                                                                                                                                                                                                           CP_CSROMEN                                   A12   XCP_CSROMEN                                                                                                                                                                                                                  DB#0   P5            DSP_DB(0)
                                                                                                                                                                                                                                                                        A13
                                                                                                                                                                                                                           CP_CSRAMEN                                         XCP_CSRAMEN                                                                                                                                                                                                                                                                                                                                      VCCB
                                                                                                                                                                                                             R605                                                       M15
                                                                                                                                                                                                                          CP_CSROM2EN                                         XPA0/CS1N                                                                                                                                                                                                            XTIC_MODE D12
                                                                                                                                                                                                             47K                                                        M14
                                                                                                                                                                                                                                YMU_EN                                        XPA1/CS2N
                                                                                                                                                                                                                                                                        M11                                                                                                                                                                                                                                       M12
                                                                                                                                                                                                                               CHG_DET                                        XPA2/CS3N                                                                                                                                                                                                     XCPTSTSTOP_CKO




                                                                                                                         2-16
                                                                                                                                                                                                                                                                        N14
                                                                                                                                                                                                                              MLCD_EN                                         XPA3/CS4N                                                                                                                                                                                                                                                                                                                                               R606
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               D11
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          XAG3                                                            ICHRG                                                       10K,1%
                                                                                                                                                                                                                                                                        C13                                                                                                                                                                                                                                    E11
                                                                                                                                                                                                                                CP_WEN                                      XCP_WEN                                                                                                                                                                                                                       XAG2
                                                                                                                                                                                                                                                                        P16                                                                                                                                                                                                                                    A11
                                                                                                                                                                                                                                CP_OEN                                      XPA4/OEN                                                                                                                                                                                                                      XAG1                                                                                                                                               BP_VF
                                                                                                                                                                                                                                                                        P15                                                                                                                                                                                                                                    B11
                                                                                                                                E                                                                                           DEBUG_DCD                                       XPA5/WAITN                                                                                                                                                                                                                    XAG0                                                                                                                                                                                                          E
                                                                                                                                                                                                                                                                        T15
                                                                                                                                                                                                                            UPPER_BYTE                                      XPA6/BE1N                                                                                                                                                                                                                                                                                                                                         VBAT
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              B7
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       XBSWN                                                                                          TR_RST
                                                                                                                                                                                                                                                                        M9                                                                                                                                                                                                                                    A7
                                                                                                                                                                                                                                   CP_INT                                  XPA7/IRQ1                                                                                                                                                                                                                    X1RTC
                                                                                                                                                                                                                                                                        T5                                                                                                                                                                                                                                    D10
                                                                                                                                                                                                                                  PEN_IRQ                               P2 XPA8/IRQ2                                                                                                                                                                                                                    X2RTC E8
                                                                                                                                                                                                                                 FLIP_SNS                                  XPA9/IRQ3                                                                                                                                                                                                             XRTCALARM_N                    RTCALARM
                                                                                                                                                                                                                                                                        N2                                                                                                                                                                                                                                    C6                                                                      OSC601                                     R607
                                                                                                                                                                                                                                 YMU_IRQ                                   XPA10/IRQ4                                                                                                                                                                                                              XOSC32OUT                    CLK32K                                                                                           33K,1%
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams




                                                                                                                                                                                                                                                                                        XCP_KB0/SIN0
                                                                                                                                                                                                                                                                                        XCP_KB1/SIN1
                                                                                                                                                                                                                                                                                        XCP_KB2/SIN2
                                                                                                                                                                                                                                                                                        XCP_KB3/SIN3
                                                                                                                                                                                                                                                                                        XCP_KB4/SIN4
                                                                                                                                                                                                                                                                                        XCP_KB5/SOUT0
                                                                                                                                                                                                                                                                                        XCP_KB6/SOUT1
                                                                                                                                                                                                                                                                                        XCP_KB7/SOUT2
                                                                                                                                                                                                                                                                                        XCP_KB8/SOUT3
                                                                                                                                                                                                                                                                                        XCP_KB9/SOUT4
                                                                                                                                                                                                                                                                                                                     XPA11/IRDARX
                                                                                                                                                                                                                                                                                                                     XPA12/IRDATX
                                                                                                                                                                                                                                                                                                                                       XPA30_IM0
                                                                                                                                                                                                                                                                                                                                       XPA31_IM1
                                                                                                                                                                                                                                                                                                                                                      XPA15/TX0
                                                                                                                                                                                                                                                                                                                                                      XPA16/RX0
                                                                                                                                                                                                                                                                                                                                                                     XPA29_IOM1
                                                                                                                                                                                                                                                                                                                                                                                     XPA13_TX1
                                                                                                                                                                                                                                                                                                                                                                                     XPA14_RX1
                                                                                                                                                                                                                                                                                                                                                                                                     XSM0_DATA
                                                                                                                                                                                                                                                                                                                                                                                                     XSM0_CLK
                                                                                                                                                                                                                                                                                                                                                                                                                    XPA19/CP_MOSI
                                                                                                                                                                                                                                                                                                                                                                                                                    XPA20/CP_MISO
                                                                                                                                                                                                                                                                                                                                                                                                                    XPA21/CP_SCK
                                                                                                                                                                                                                                                                                                                                                                                                                    XPA22/SSN
                                                                                                                                                                                                                                                                                                                                                                                                                                       XPWM1
                                                                                                                                                                                                                                                                                                                                                                                                                                       XPA23/PWM2
                                                                                                                                                                                                                                                                                                                                                                                                                                       XPA24/PWM3
                                                                                                                                                                                                                                                                                                                                                                                                                                       XFRSTB
                                                                                                                                                                                                                                                                                                                                                                                                                                                       XPA25_OM0
                                                                                                                                                                                                                                                                                                                                                                                                                                                       XPA26_OM1
                                                                                                                                                                                                                                                                                                                                                                                                                                                       XPA27_SM1_CLK
                                                                                                                                                                                                                                                                                                                                                                                                                                                                           XPA17_DRQ0
                                                                                                                                                                                                                                                                                                                                                                                                                                                                           XPA18_T_ACK
                                                                                                                                                                                                                                                                                                                                                                                                                                                                           XPA33_T_REQA
                                                                                                                                                                                                                                                                                                                                                                                                                                                                           XPA34_T_REQB
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              XCP_TCK
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              XCP_TMS
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              XCP_TDI
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              XCP_TRSTN
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              XCP_TDO




                                                                                                                                                                                                                                                                                                                                                                                                                 J6




                                                                                                                                                                                                                                                                                        L4
                                                                                                                                                                                                                                                                                        L5
                                                                                                                                                                                                                                                                                        T1
                                                                                                                                                                                                                                                                                        T3
                                                                                                                                                                                                                                                                                        T4
                                                                                                                                                                                                                                                                                                                                    F3
                                                                                                                                                                                                                                                                                                                                                   L3
                                                                                                                                                                                                                                                                                                                                                                  F1 XPA28_IOM0
                                                                                                                                                                                                                                                                                                                                                                                                                 L2
                                                                                                                                                                                                                                                                                                                                                                                                                 L1
                                                                                                                                                                                                                                                                                                                                                                                                                                    F4
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           F9




                                                                                                                                                                                                                                                                                        P3
                                                                                                                                                                                                                                                                                                                                    E1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                        E4




                                                                                                                                                                                                                                                                                        R2
                                                                                                                                                                                                                                                                                        U3
                                                                                                                                                                                                                                                                                        N3
                                                                                                                                                                                                                                                                                                                  K5
                                                                                                                                                                                                                                                                                                                  N1
                                                                                                                                                                                                                                                                                                                                                   H4
                                                                                                                                                                                                                                                                                                                                                                                                                 K4
                                                                                                                                                                                                                                                                                                                                                                                                                                    R5
                                                                                                                                                                                                                                                                                                                                                                                                                                    H6
                                                                                                                                                                                                                                                                                                                                                                                                                                    H5
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           D7
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           C7




                                                                                                                                                                                                                                                                                                                                                                  G5
                                                                                                                                                                                                                                                                                                                                                                                  G6
                                                                                                                                                                                                                                                                                                                                                                                  G3
                                                                                                                                                                                                                                                                                                                                                                                                                                                    G2
                                                                                                                                                                                                                                                                                                                                                                                                                                                    G4
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           G8




                                                                                                                                                                                                                                                                                        M4
                                                                                                                                                                                                                                                                                                                                                                                                                                                    M3
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            CC4V-T1 32.768KHz 12.5pF




                                                                                                                                                                                                                                                                                                                                                                                                                                                                       P13




                                                                                                                                                                                                                                                                                                                                                                                                 U12
                                                                                                                                                                                                                                                                                                                                                                                                 N10
                                                                                                                                                                                                                                                                                                                                                                                                                                                                       N17
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          D13




                                                                                                                                                                                                                                                                                                                                                                                                                                                                       M17
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      C613                                                       R608             C614
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        R609                                                                          C615
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      12PF                                                       33K,1%           330NF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        100K                                                                          12PF




                                                                                                                                                                                       KEY_COL(0:3)

                                                                                                                                                                                                                    KEY_COL(0)

                                                                                                                                                                        KEY_ROW(0:5)                                KEY_COL(1)                                                                                                                                                                                                                                                                                                     CP_TDO
                                                                                                                                F                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       F
                                                                                                                                                                                                                    KEY_COL(2)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   TR_RST
                                                                                                                                                                                                                    KEY_COL(3)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   CP_TDI
                                                                                                                                                                                                      KEY_ROW(0)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   CP_TMS
                                                                                                                                                                                                      KEY_ROW(1)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   CP_TCK
                                                                                                                                                                                                      KEY_ROW(2)
                                                                                                                                                                                                      KEY_ROW(3)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   DEBUG_DSR
                                                                                                                                                                                                      KEY_ROW(4)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   EAR_SWITCH
                                                                                                                                                                                                      KEY_ROW(5)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   DLC_DETECT
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   JACK_IN
                                                                                                                                                                                                                        IRDA_RX
                                                                                                                                                                                                                        IRDA_TX                                                                                                                                                                                                                                                                                                    PWR_KEEP
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   SIMRST
                                                                                                                                                                                                                    DEBUG_DTR                                                                                                                                                                                                                                                                                                      DEBUG_RI
                                                                                                                                                                                                                    DEBUG_RTS
                                                                                                                                                                                                                    DEBUG_TXD                                                                                                                                                                                                                                                                                                      FLASH_RESET
                                                                                                                                                                                                                    DEBUG_RXD                                                                                                                                                                                                                                                                                                      AUDIO_AMP_EN
                                                                                                                                                                                                                    DEBUG_CTS                                                                                                                                                                                                                                                                                                      TK_CS




This Document can not be used without Samsung's authorization
                                                                                                                                G                                                                                       IRDA_EN                                                                                                                                                                                                                                                                                                    UP_CS                                                                                                                                                                                G




                                                                SAMSUNG Proprietary-Contents may change without notice
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   UP_SCLK
                                                                                                                                                                                                                        SDS_TXD                                                                                                                                                                                                                                                                                                    UP_SDI
                                                                                                                                                                                                                        SDS_RXD

                                                                                                                                                                                                                        SIMDATA
                                                                                                                                                                                                                         SIMCLK

                                                                                                                                                                                                                         TK_SDO




                                                                                                                                                                                                                                                                                                                                                                                                 TRIDENT

                                                                                                                                H                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       H




                                                                                                                                    1                                  2                                            3                                     4                                                   5                                                                                                    6                                                                         7                                                 8                                                  9                                          10                                            11                      12
                                                                                                                                    1                  23                                                                                       4                                           5                                              67                              8




                                                                                                                                A                                                                                                                                                                                                                                              A

                                                                                                                                                                                               DSP_AB(0:8)
                                                                                                                                                                                                                                                                    U701

                                                                                                                                                                                                                                   DSP_AB(0)         P5    AB0                     K9
                                                                                                                                                                                                                                                                             SERCK                        SERCLK
                                                                                                                                                                                                                                   DSP_AB(1)         N4    AB1                     M8
                                                                                                                                                                                                                                                                             SERDA                        SERDAT                                          TXPOWER
                                                                                                                                                                                                                                   DSP_AB(2)         N3    AB2                     P9
                                                                                                                                                                                                                                                                            SERLE1                        SERLE
                                                                                                                                                                                                                                   DSP_AB(3)         P2    AB3                     M7                                                             C701
                                                                                                                                                                                                                                                                            SERLE2
                                                                                                                                                                                                                                   DSP_AB(4)         P1    AB4                                                                                    NC
                                                                                                                                                                                                                                   DSP_AB(5)         N1    AB5                        N6
                                                                                                                                                                                                                                                                            RFOVL
                                                                                                                                                                                                                                   DSP_AB(6)         M2    AB6
                                                                                                                                                                                                                                   DSP_AB(7)         L2    AB7                        J14
                                                                                                                                                                                                                                                                                TXP
                                                                                                                                                                                                                                   DSP_AB(8)         K1    AB8                        J10
                                                                                                                                                                                              DSP_DB(0:15)                                                                     TXIP                                                                                 TXIP
                                                                                                                                                                                                                                                                                      H12
                                                                                                                                                                                                                                                                               TXIN                                                                                 TXIN
                                                                                                                                                                                                                                   DSP_DB(0)         J2    DB0                        H13
                                                                                                                                                                                                                                                                              TXQP                                                                                  TXQP
                                                                                                                                                                                                                                   DSP_DB(1)         H2    DB1                        J13
                                                                                                                                                                                                                                                                             TXQN                                                                                   TXQN
                                                                                                                                                                                                                                   DSP_DB(2)         J5    DB2                        L11
                                                                                                                                                                                                                                                                               RXIP
                                                                                                                                                                                                                                   DSP_DB(3)         J1    DB3                        M13
                                                                                                                                                                                                                                                                               RXIN
                                                                                                                                                                                                                                   DSP_DB(4)         H3    DB4                        N14
                                                                                                                                B                                                                                                                                            RXQP                                                                                              B
                                                                                                                                                                                                                                   DSP_DB(5)         G3    DB5                        P14
                                                                                                                                                                                                                                                                             RXQN
                                                                                                                                                                ZD701                                                              DSP_DB(6)         F5    DB6
                                                                                                                                                                                                                                                                                                                                                                    RXIP
                                                                                                                                                                                                                                   DSP_DB(7)         G2    DB7                     D11
                                                                                                                                                                                                                                                                             VREG
                                                                                                                                                                        6                                                                            F2    DB8                     A13
                                                                                                                                                            1                                                                      DSP_DB(8)
                                                                                                                                                                                   SVC_RED                                                                                   MICIN                                                               MICIN
                                                                                                                                                            7                                                                      DSP_DB(9)         E2    DB9                     B12
                                                                                                                                                                                                                                                                           MICOUT                                                                MICOUT
                                                                                                                                                            2           5                                                          DSP_DB(10)        D2    DB10
                                                                                                                                                                                   SVC_GREEN                                                                                                                                                                        RXIN
                                                                                                                                                            8                                                                      DSP_DB(11)        D4    DB11                    A14
                                                                                                                                                                                                                                                                             AUXIN                                                               AUXIN
                                                                                                                                                            3           4                                                          DSP_DB(12)        E1    DB12                    B14
                                                                                                                                                                                   SVC_BLUE                                                                                AUXOUT                                                                AUXOUT
                                                                                                                                                                                                                                   DSP_DB(13)        E4    DB13
                                                                                                                                                                                                                                   DSP_DB(14)        C2    DB14            AOUTAP F13                     AOUTAP                                                    RXQP
                                                                                                                                                                                                                                   DSP_DB(15)        B1    DB15                   G13
                                                                                                                                                                                                                                                                           AOUTAN                         AOUTAN
                                                                                                                                                                                                                                                                                  D13
                                                                                                                                                                                                                                                                           AOUTBP                         AOUTBP
                                                                                                                                                                                                                                                      K4   RWN                        E14
                                                                                                                                                                                         DSP_RWN                                                                           AOUTBN                         AOUTBN
                                                                                                                                                                                                                                                      K2   IO
                                                                                                                                                                                           DSP_IO                                                                                                                                                                   RXQN
                                                                                                                                                                                                              R799          10                       A10   RESETN                     K7                                          C702    C703
                                                                                                                                                                                              RST                                                                              MC                         CLK13M_MC               NC      NC
                                                                                                                                                                U702                                                                                                                  G12
                                                                                                                                                                                                                                                                              AFC                         AFC
                                                                                                                                                                                                                                   C799              P10   TMS                        N7
                                                                                                                                                                        6                                                                                                   XOENA                         XOENA
                                                                                                                                                            1                                                                      330NF             N10   TDI                        N5
                                                                                                                                                                                                                                                                           XOENAQ
                                                                                                                                                                                                                                                      N9   TCK
                                                                                                                                C                                                                                                                     N8   TDO                        N12                                                                                      C
                                                                                                                                                                        2                                                                                                   XTALA
                                                                                                                                                                                                                                                                            XTALB     N11
                                                                                                                                                                                                                                                                                                          CLK32K
                                                                                                                                                    VCCD                                                                                              L5   CINTR
                                                                                                                                                                                                                          CP_INT
                                                                                                                                                                        5                                                                             L4   DINTR             REFC     C13
                                                                                                                                                                                                                         DSP_INT
                                                                                                                                                                                                                                                                                      B11
                                                                                                                                                                                                                                                                            VXVCM
                                                                                                                                                                                                                                                     B4    OCTL0
                                                                                                                                                            4                                                            EN_VRF
                                                                                                                                                                        3                                                                            A5    OCTL1                      K14                                 C705           C704
                                                                                                                                                                                                                        EN_VPAC                                            RAREF1
                                                                                                                                                                                                                                                     B5    OCTL2                      L13          C706    100NF          1UF            220NF
                                                                                                                                                                                                                         SYN_EN                                            RAREF2
                                                                                                                                                                                                                                                     B6    OCTL3
                                                                                                                                        GSM_TX_EN                                                                         TX_EN
                                                                                                                                                                                                                                                     B7    OCTL4                      B8
                                                                                                                                                                                                                           SI_EN                                            DAIDO                      DAIDO
                                                                                                                                                                            R701                                                                     D5    OCTL5                      B9
                                                                                                                                                                                                                                                                             DAIDI                     DAIDI
                                                                                                                                                                            100K                                                                     A6    OCTL6                      B10
                                                                                                                                                                                                                                                                            DAICK                      DAICK
                                                                                                                                                                                                                                                     E6    OCTL7            DAIRN     D10              DAIRN




                                                                                                                         2-17
                                                                                                                                                                U703                                                                                 C7    OCTL8
                                                                                                                                                                                                                         SVC_RED                                                      B3
                                                                                                                                                                                        VCCD                                                         C8    OCTL9               UC               VCCA           VCCD
                                                                                                                                                                                                                       SVC_GREEN
                                                                                                                                                            1           6                                                                            A9    OCTL10                     A2
                                                                                                                                                                                                                        SVC_BLUE                                               UC
                                                                                                                                                                                                                                                     E9    OCTL11
                                                                                                                                                                                                                     TX_BAND_SEL
                                                                                                                                                                                                                                                                                      K11
                                                                                                                                                                        2                                                                                                   GNDB
                                                                                                                                                                                                                                                     F1    VDD1                       K13
                                                                                                                                                                                                                                                                            VDDB
                                                                                                                                D                   VCCD                                                                                             P6    VDD2                                                                                                                D
                                                                                                                                                                        5                                                                            A1    VDD3                       F14
                                                                                                                                                                                                                                                                            VDDC
                                                                                                                                                                                                                                                                                      F10                          R702           R703
                                                                                                                                                                                                                                                                            GNDC
                                                                                                                                                                                                                                                      K5   VSS                                                     2.4            2.4
                                                                                                                                                            4           3                    C707      C708   C709                                    K6   VSS                        E13
                                                                                                                                                                                             10NF      33NF   33NF                                                          VDDA
                                                                                                                                                                                                                                                      E5   VSS                        E11
                                                                                                                                                                                                                                                                            GNDA
                                                                                                                                                                                                                                                      E7   VSS
                                                                                                                                        DCS_TX_EN
                                                                                                                                                                                                                                                      E8   VSS                        P13
                                                                                                                                                                                                                                                                            VDDD
                                                                                                                                                                            R704                                                                     E10   VSS                        L10
                                                                                                                                                                                                                                                                            GNDD                   C710            C711          C712
                                                                                                                                                                            100K                                                                      G5   VSS                                     10NF            10NF          10NF
                                                                                                                                                                                                                                                     G10   VSS                        1
                                                                                                                                                                                                                                                                               NC
                                                                                                                                                                U704                                                                                  H5   VSS                        2
                                                                                                                                                                                                                                                                               NC
                                                                                                                                                                                                                                                     H10   VSS
                                                                                                                                                            1           6                                                                             K8   VSS
                                                                                                                                                                                                                                                     K10   VSS

                                                                                                                                                                        2
                                                                                                                                                    VCCD
                                                                                                                                                                        5
                                                                                                                                E                                                                                                                                                                                                                                              E
                                                                                                                                                            4           3


                                                                                                                                        PCS_RX_EN

                                                                                                                                                                            R705




This Document can not be used without Samsung's authorization
                                                                                                                                                                            100K




                                                                SAMSUNG Proprietary-Contents may change without notice
                                                                                                                                                                                                                                    CSP1093

                                                                                                                                F                                                                                                                                                                                                                                              F




                                                                                                                                    1                  23                                                                                       45                                                                                         6                        7      8
                                                                                                                                                                                                                                                                                                                                                                                   SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams
                                                                                                                                    1         2          3                                                4                            5           6                       7   8




                                                                                                                                A                                                                                                                                                  A




                                                                                                                                B                                                                                                                                                  B




                                                                                                                                                                                     VOSC




                                                                                                                                                                                            R801
                                                                                                                                                                                            10
                                                                                                                                                                                                                                     C801
                                                                                                                                                                                                                                            R802       C802
                                                                                                                                                                                                                                     10NF   1.8K       1NF
                                                                                                                                                                                                                 13MHZ_BB                                     CLK13M_TR

                                                                                                                                C                                                                                                           R803       C803                        C
                                                                                                                                                                                                                                            1.2K       10NF
                                                                                                                                                                                                                                     C804                     CLK13M_MC
                                                                                                                                                                                                                                     10NF
                                                                                                                                                                                                                                                              CLK13M_YMU
                                                                                                                                                                  OSC801

                                                                                                                                                             1                   4




                                                                                                                                                                 VT
                                                                                                                                                                                                   C805       R804
                                                                                                                                                                                                   10NF       100
                                                                                                                                                             2                   3                                                                            CLK13M_RF




                                                                                                                                                                       OUT VCC

                                                                                                                                                                 GND
                                                                                                                                        AFC




                                                                                                                         2-18
                                                                                                                                                  C806
                                                                                                                                                  10NF                                      C807
                                                                                                                                                                                            10NF




                                                                                                                                D                                                                                                                                                  D
                                                                                                                                                                                                                                                                                       SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams




                                                                                                                                                                                                                      X-TAL(13MHz)




                                                                                                                                E                                                                                                                                                  E




This Document can not be used without Samsung's authorization
                                                                SAMSUNG Proprietary-Contents may change without notice
                                                                                                                                F                                                                                                                                                  F




                                                                                                                                    1         2          3                                                4                            5           6                       7   8
                                                                                                                                    1                        2                                                                        3                                                         4                                                                          5                                                                                6                        7                 8




                                                                                                                                                                                   VOSC

                                                                                                                                                                                                                                                                                    13MHZ_BB

                                                                                                                                                                                                                                                                                    SERDAT
                                                                                                                                A                                                                                                                                                                                                                                                                                                                                                                          A
                                                                                                                                                                                                                                                                                    SERCLK

                                                                                                                                                                                                                                                                                    SERLE
                                                                                                                                                                      C914
                                                                                                                                                                      22NF


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             SI_EN




                                                                                                                                                                                                                                                                                                                                                                                             VRF                                              VRF


                                                                                                                                                                      22 21 20 19 18 17 16
                                                                                                                                                                                                                                                                                                                                                                                      C905                                     C915                                         C904
                                                                                                                                                                                                                                                                                                                                                                                                                                                                            47PF




                                                                                                                                                                                                     SDI
                                                                                                                                                                                                                                                                                                                                                                                      22NF                                     22NF




                                                                                                                                                                      GND
                                                                                                                                                                             GND
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         GSM_PAM_IN




                                                                                                                                                                                                               SCLK



                                                                                                                                                                                              XOUT
                                                                                                                                                                                                                       SENB




                                                                                                                                                                                   VDDA
                                                                                                                                                                   1 GND                                                SDO       15
                                                                                                                                B                                                                                                                                                                                                                                                                                                                                                        DPCS_PAM_IN       B
                                                                                                                                        RXQP                       2 RXQP                                             PDNB        14                                                SI_EN                                                                                                                                                                                   C906




                                                                                                                                                                                                                                                                                                                                                                                                                                                       25
                                                                                                                                                                                                                                                                                                                                                                               34 33 32 31                   30 29 28 27 26
                                                                                                                                                                                              U901                                                                                                                                                                                                                                                                          33PF
                                                                                                                                        RXQN
                                                                                                                                                                   3                                                    GND       13                                                XOENA
                                                                                                                                                                     RXQN




                                                                                                                                                                                                                                                                                                                                                                                                                      L1
                                                                                                                                                                                                                                                                                                                                                                                                                              L2
                                                                                                                                                                   4                                                       ION    12                                                                                                                                   1




                                                                                                                                                                                                                                                                                                                                                                               GND
                                                                                                                                                                                                                                                                                                                                                                                      GND
                                                                                                                                                                                                                                                                                                                                                                                                               GND
                                                                                                                                                                                                                                                                                                                                                                                                                                      GND
                                                                                                                                        RXIP                         RXIP                                                                                                                                                                                                  ION                                                                                        VRF




                                                                                                                                                                                                                                                                                                                                                                                             VDD3
                                                                                                                                                                                                                                                                                                                                                                                                                                              VDD4




                                                                                                                                                                                                                                                                                                                                                                                                      PDNB
                                                                                                                                                                                                                                                                                                                                                                                                                                                       RFOG
                                                                                                                                        RXIN
                                                                                                                                                                   5                                                       IOP    11                                                                                                                                   2                                                                               RFOD     24
                                                                                                                                                                     RXIN                                                                                                                                                                                                IOP
                                                                                                                                                                                                                                                                                                                                                                       3 CKN                                                                           VDD1     23




                                                                                                                                                                       GND
                                                                                                                                                                             GND
                                                                                                                                                                                       VDDC
                                                                                                                                                                                               XIN
                                                                                                                                                                                                         GND
                                                                                                                                                                                                                CKP
                                                                                                                                                                                                                        CKN
                                                                                                                                                            VOSC                                                                                                                                                                                                       4 CKP                                   U902                                    RFIGN    22                 GSM_LNA_IN_N
                                                                                                                                                                     23 24         6      7          8     9          10
                                                                                                                                                                                                                                                                                                           TXIP
                                                                                                                                                                                                                                                                                                                                                                       5                                                                               RFIGP    21                 GSM_LNA_IN_P
                                                                                                                                                                                                                                                                                                                                                                           TXIP
                                                                                                                                                                                                                                                                                                           TXIN
                                                                                                                                                                                                                                                                                                                                                                       6                                                                               RFIDN    20                 DCS_LNA_IN_N
                                                                                                                                                                                                                                                                                                                                                                           TXIN
                                                                                                                                                     C907                                                                                                                                                                                                              7                                                                                        19
                                                                                                                                                                                                                                                                                                       TXQP                                                              TXQP                                                                          RFIDP                       DCS_LNA_IN_P
                                                                                                                                                     22NF

                                                                                                                                                                                                                                                                                                      TXQN                                                             8 TXQN                                                                          RFIPN    18                 PCS_LNA_IN_N
                                                                                                                                C                                                                                                                                                                                                                                                                                                                                                                          C
                                                                                                                                                                                                                                                                                                                                                                                                                                                       RFIPP    17                 PCS_LNA_IN_P
                                                                                                                                                                                                     C908




                                                                                                                                                                                                                                                                                                                                                                                GND
                                                                                                                                                                                                                                                                                                                                                                                       GND
                                                                                                                                                                                                                                                                                                                                                                                              IFLOP
                                                                                                                                                                                                                                                                                                                                                                                                       IFLON
                                                                                                                                                                                                                                                                                                                                                                                                                GND
                                                                                                                                                                                                                                                                                                                                                                                                                      RFLOP
                                                                                                                                                                                                                                                                                                                                                                                                                              RFLON
                                                                                                                                                                                                                                                                                                                                                                                                                                       VDD2
                                                                                                                                                                                                                                                                                                                                                                                                                                               DIAG2
                                                                                                                                                                                                                                                                                                                                                                                                                                                        DIAG1
                                                                                                                                                                                                     100PF
                                                                                                                                                                                                                                                                                                                                                                               35 36         9        10 11 12 13 14 15 16

                                                                                                                                                                                                                                                                               VOSC                                                                                                                                                                             VRF

                                                                                                                                                                                                                                                                                                     L901
                                                                                                                                                                                                                                                                 C909                                3.9nH
                                                                                                                                                                                                                                                                 22NF




                                                                                                                         2-19
                                                                                                                                                                                                                              C910
                                                                                                                                                                                                                              100PF
                                                                                                                                               CLK13M_RF                                                                                                                                                                                              VOSC
                                                                                                                                                                                                                                                                                                                                                                                                                                            C911
                                                                                                                                                                                                                                                                                                                                                                                                                                            22NF




                                                                                                                                                                                                                                                                       7
                                                                                                                                                                                                                                                                                        4
                                                                                                                                                                                                                                                                                               3
                                                                                                                                                                                                                                                                                                      2
                                                                                                                                                                                                                                                                                                              1
                                                                                                                                D                                                                                                                                                                                                                                                                                                                                                                          D
                                                                                                                                                                                                                                                                                                                                                                      C912




                                                                                                                                                                                                                                                                   XIN
                                                                                                                                                                                                                                                           GND                                                    GND                                                 22NF




                                                                                                                                                                                                                                                                  GND 6
                                                                                                                                                                                                                                                                                    GND
                                                                                                                                                                                                                                                                                             IFLA
                                                                                                                                                                                                                                                                                                    IFLB
                                                                                                                                                                                                                                                                                                            GND




                                                                                                                                                                                                                                                                                   VDDD 5
                                                                                                                                                                                                                                                           GND                                                    GND




                                                                                                                                                                                                                                          8 32 31
                                                                                                                                                                                                                                                           NC                                                     VDDI




                                                                                                                                                                                                                                          9
                                                                                                                                               SYN_EN                                                                                                                                U903                    IFLOP
                                                                                                                                                                                                                                                           PDNB
                                                                                                                                                                                                                                                           SDO                                               IFLON

                                                                                                                                                SERLE                                                                                                      SENB                                               VDDR                                             VOSC

                                                                                                                                               SERCLK                                                                                                      SCLK                                             RFLOP

                                                                                                                                               SERDAT                                                                                                      SDI                                              RFLON


                                                                                                                                                                                                                                                                                                                         22 23 24 25 26 27 28 29 30




                                                                                                                                                                                                                                          14 13 12 11 10
                                                                                                                                                                                                                                                           NC                                                 GND




                                                                                                                                                                                                                                                                  GND
                                                                                                                                                                                                                                                                                      GND
                                                                                                                                                                                                                                                                                             RFLB
                                                                                                                                                                                                                                                                                                    RFLA
                                                                                                                                                                                                                                                                                                            GND
                                                                                                                                E                                                                                                                                                                                                                       C913
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           E
                                                                                                                                                                                                                                                                                                                                                        22NF




                                                                                                                                                                                                                                                                   15
                                                                                                                                                                                                                                                                         16 RFLD
                                                                                                                                                                                                                                                                                   17 RFLC
                                                                                                                                                                                                                                                                                        18
                                                                                                                                                                                                                                                                                               19
                                                                                                                                                                                                                                                                                                      20
                                                                                                                                                                                                                                                                                                              21




This Document can not be used without Samsung's authorization
                                                                SAMSUNG Proprietary-Contents may change without notice
                                                                                                                                                                                                                                                                        MICRO STRIP LINE




                                                                                                                                F                                                                                                                                                            SI-LAB                                                                                                                                                                                                        F




                                                                                                                                    1                        2                                                                        3                                                         4                                                                          5                                                                                6                        7                 8
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams
                                                                                                                                        1                                    2                                                             3                                          4                              5                                         6                                             7                                             8




                                                                                                                                A                                                                                                                                                                                                                                                                                                                              A




                                                                                                                                                                                                                                                                                                                                                                           F1003



                                                                                                                                                                                                                                                                                                                                                                                                                                             ANT1001
                                                                                                                                                                                                                                                                                                                                                                           G       G        G   C    A   G                                    1
                                                                                                                                                                                                                                                                                                                                                                                                                     L1002        ANT             1
                                                                                                                                                                                                                                                                                                                                                                           6   5        4       3    2   1
                                                                                                                                                                                                                                                                                                                                                                                                                     1.8NH                    2
                                                                                                                                                                                                                                                                                                                                                         C1003      47PF                                                                          2

                                                                                                                                                                                                                                                                                                                                                                                                                                                       -




                                                                                                                                B                                                                                                                                                                                                                                                                            C1001                 L1009                       B
                                                                                                                                                                                                                                                                                                                                                                                                             0.5PF                 5.6nH




                                                                                                                                                                                                                                                                                               GSM_TX_EN

                                                                                                                                                                                                                                                                                                            C1004                                                                                                C1005    1PF
                                                                                                                                                                                                                                                                                                            100PF                F1001                                                                                                     GSM_LNA_IN_N
                                                                                                                                                                                                                                                                                                                                                   15
                                                                                                                                                                                                                                                                                                                                                                                                                                   L1003
                                                                                                                                                                                                                                                                                                                                                  ANT        EGSMRX
                                                                                                                                                                                                                                                                                                                                                                                                                                   27NH
                                                                                                                                                                                                                                                                                                                                  13    VC1                           1
                                                                                                                                                                                                                                                                                                                                   11   VC2                  EGSMRX   2                                          C1006    1PF
                                                                                                                                                                                                                                                                                                                                                                                                                                           GSM_LNA_IN_P
                                                                                                                                                                                                                                                                                               DCS_TX_EN                           5    VC3                   DCSRX   3
                                                                                                                                                                                                                                                                                                                                  10     DCS/PCSTX            DCSRX   4
                                                                                                                                                                                                                                                                                                            C1007                 12    EGSMTX                PCSRX   6                                          C1008    1.2PF
                                                                                                                                                                                                                                                                                                            100PF                                                                                                                          DCS_LNA_IN_N
                                                                                                                                                                                                                                                                                                                                         GG         G    G      G                                                                  L1004
                                                                                                                                                                                                                                                                                                                                                                                                                                   7.5NH
                                                                                                                                                                                                                                                                                                                                         7    14   16   19    20
                                                                                                                                                                                                                                                                                                                                                                               C1002                             C1009    1.2PF
                                                                                                                                C                                                                                                                                                                                                                                              47PF                                                        DCS_LNA_IN_P        C
                                                                                                                                                                                                                                                                                               PCS_RX_EN                                                                          F1002
                                                                                                                                                                                                                                                                                                            C1010
                                                                                                                                                                                                                                                                                                            100PF                                              C1011                                              C1012   1PF
                                                                                                                                                                                                                                                                                                                                                                 NC                                                                        PCS_LNA_IN_ N
                                                                                                                                                                                                                                                                                                                                                                                   2                OUT1 4
                                                                                                                                                                                                                                                                                                                                                                                       IN                                          L1006
                                                                                                                                                                                                                                                                                                                                                                                                                                   7.5NH
                                                                                                                                                                                                                                                                                                                                                                                            OUT2 6                C1013   1PF
                                                                                                                                                                                                                                                                                                                                                                                        G1 G2 G3                                           PCS_LNA_IN_ P
                                                                                                                                                                                                                                                                                                                                                                                       13     5
                                                                                                                                                                                                                                                                                                                         C1014   C1015
                                                                                                                                                                                                                                                                                                                         33PF    47PF




                                                                                                                         2-20
                                                                                                                                                          R1001
                                                                                                                                                          18
                                                                                                                                    GSM_PAM_IN
                                                                                                                                                                                                                 R1002
                                                                                                                                                     R1004                R1003                                  180
                                                                                                                                                     300                  300
                                                                                                                                                                                                                                                                      L1008            L1007
                                                                                                                                D                         R1005                                                                                                          NC           NC                                                                                                                                                                       D
                                                                                                                                                          18
                                                                                                                                    DPCS_PAM_IN
                                                                                                                                                                                                                                                                                                                                                                                                                                                                   SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams




                                                                                                                                                                                                                                                       U1001
                                                                                                                                                                                                                 R1006                                  RF3110
                                                                                                                                                                          R1007                   VBAT




                                                                                                                                                                                                                                                        1
                                                                                                                                                                                                                                                        7
                                                                                                                                                                                                                                                        11
                                                                                                                                                     R1008                                                       180
                                                                                                                                                     300                  300

                                                                                                                                                                                          C1016




                                                                                                                                                                                                                                                  DCSIN
                                                                                                                                                                                                                                                  GSMIN
                                                                                                                                                                                          33PF                                     VCC2




                                                                                                                                                                                                                                                 PCSOUT 9
                                                                                                                                                                                                                                                 GSMOUT
                                                                                                                                                                                                                                   VCC2




                                                                                                                                                                                                                                               GND
                                                                                                                                                                                                                                                             13
                                                                                                                                                                                                                                   VCC




                                                                                                                                                                                                                         10 8 12
                                                                                                                                                                                                                                                                          VPAC




                                                                                                                                                                                                                                         VRAMP




                                                                                                                                                                                                                                         BAND
                                                                                                                                                                                                                                         TXEN
                                                                                                                                                                                                                                         VBATT
                                                                                                                                                                                                                                         VREG
                                                                                                                                                  C1022           C1021      C1017




                                                                                                                                                                                                                                         2
                                                                                                                                                                                                                                         3
                                                                                                                                                                                                                                         4
                                                                                                                                                                                                                                         5
                                                                                                                                                                                                                                         6
                                                                                                                                                  33UF            33UF       33UF
                                                                                                                                                  6.3V            6.3V       6.3V


                                                                                                                                                                                                                                                                              C1018
                                                                                                                                                                                                                                                                              1NF
                                                                                                                                E                                         TX_BAND_SEL                                                                   R1009     C1023
                                                                                                                                                                                                                                                                                                                                                                                                                                                               E
                                                                                                                                                                                                                                                        100K,1%
                                                                                                                                                                                                         C1019                                                    10PF
                                                                                                                                                                                                         33PF




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                                                                SAMSUNG Proprietary-Contents may change without notice
                                                                                                                                                                                  TX_EN
                                                                                                                                                                                                         C1020
                                                                                                                                                                                                         33PF                                                     TXPOWER
                                                                                                                                                                                                                                                                                                      TRANSMITTER & RECEIVER




                                                                                                                                F                                                                                                                                                                                                                                                                                                                              F




                                                                                                                                        1                                    2                                                             3                                          4                              5                                         6                                             7                                             8
3. SGH-D428 Exploded View and its Parts list
1. Cellular phone Exploded View




                                                  3-1
                     SAMSUNG Proprietary-Contents may change without notice
                    This Document can not be used without Samsung's authorization
SGH- D428 Exploded view and its Part list




2. Cellular phone Parts list

     Location
                                      Description                       SEC CODE         Remark
          NO.
 QCR06                  SCREW                                           6001-001155

 QBA21                  BATTERY                                         GH43-01391A

  QRF01                 RF COVER                                        GH72-12560A

 QSC03                  SCREW HOLD COVER                                GH73-03392A

 QVO01                  VOLKEY ASSY                                     GH75-04340A

  QST01                 STYLUS PEN                                      GH75-04341A

 QMP01                  PBA MAIN                                        GH82-00847A      Hong Kong

 QMP01                  PBA MAIN                                        GH92-01835A        China
  QMI01                 MICROPHONE ASSY                                 GH30-00078A

 QVK01                  UNIT SIDE KEY FPCB                              GH59-00948A

 QME01                  UNIT-METAL DOME                                 GH59-01453A

  QSP01                 SPEAKER                                         3001-001560

 QCR06                  SCREW                                           6001-001155

 QCR03                  SCREW                                           6001-001811

  QLC01                 LCD                                             GH07-00565A

 QMO01                  MOTOR DC                                        GH31-00052A
  QPC01                 PCB 55PIN FPCB                                  GH41-00629A

 QCA01                  UNIT CAMERA                                     GH59-01465A
 QCA04                  SIDE DECO                                       GH71-04444A
 QSC02                  HINGE SCREW CAP                                 GH74-03847A
 QCA05                  SIDE DECO COVER                                 GH74-11770A
 QCH03                  CAMERA HINGE                                    GH75-03936A
  QFU01                 SLIDER UPPER ASSY                               GH75-04336A

  QFR01                 FRONT COVER ASSY                                GH75-04338A
  QKP01                 KEYPAD MAIN                                     GH75-04342A
  QKP02                 MENU KEY ASSY                                   GH75-04343A

  QFL01                 S/LOWER ASSY                                    GH75-04626A

            QCR16       SCREW                                           6001-001823
            QHI01       HINGE ASSY                                      GH75-04143A

 QMP02                  PBA LCD                                         GH92-01892A
 QME02                  UNIT METAL DOME                                 GH59-01449A
 QAN01                  ANTENNA                                         GH42-00428A

  QRE01                 REAR COVER                                      GH75-04339A

                QIF01   IF COVER                                        GH72-12562A




                                                       3-2

                           SAMSUNG Proprietary-Contents may change without notice
                         This Document can not be used without Samsung's authorization
                                                                SGH-D428 Exploded view and its Part list




3. Test Jig (GH80-00865A)




3-1. RF Test Cable                3-2. Test Cable                       3-3. Serial Cable
    (GH39-00090A)                       (GH39-00127A)




3-4. Power Supply Cable           3-5. DATA CABLE                       3-6. TA
                                        (GH39-00201C)                         (GH44-00483A):China




 3-7. TA
     (GH44-00770A):Hong Kong




                                                   3-3

                      SAMSUNG Proprietary-Contents may change without notice
                     This Document can not be used without Samsung's authorization
4. SGH-D428 MAIN Electrical Parts List
1.Main Parts List
  SEC CODE              Design LOC                        SEC CODE                   Design LOC
0403-001387 ZD305                                       2007-000141 R413
0403-001427 ZD304                                       2007-000143 R511,R512
0404-001172 D101,D201                                   2007-000148 R423,R520,R602,R102,R112,R417
0406-001084 ZD301,D302,D303                             2007-000149 R425
0406-001150 D102,D103,ZD402,ZD403                       2007-000157 R216,R217,R301,R302,R303
0406-001190 ZD201,ZD202,ZD701                           2007-000157 R504,R601,R605,R610
0501-000225 Q401                                        2007-000159 R407
0502-001201 Q101                                        2007-000161 R405
0504-001042 U702,U703,U704                              2007-000162 R220,R221,R222,R233,R402
0504-001113 Q103,Q104                                   2007-000162 R609,R701,R704,R705
0506-001052 Q102                                        2007-000164 R404
0601-001790 LED201,LED202,LED203,LED204                 2007-000170 R603
0601-001790 LED206,LED207,LED208,LED209                 2007-000171 R201,R223,R224,R225,R506
0601-001790 LED211,LED212                               2007-000171 R507,R508,R510,R514,R516
0604-001261 LED217                                      2007-000171 R518,R519
0904-001784 U502                                        2007-000172 R110,R503,R799,R801
1001-001183 U401                                        2007-000173 R211,R212
1009-001010 U202                                        2007-000174 R226
1109-001281 U500                                        2007-000758 R106
1201-001889 U1001                                       2007-000775 R406
1203-002127 U101                                        2007-001119 R414
1203-002542 U203                                        2007-001217 R202
1203-002851 U501                                        2007-001288 R1001,R1005
1203-002902 U102                                        2007-001295 R207
1204-001984 U701                                        2007-001301 R214,R232
1204-002138 U402                                        2007-001307 R1002,R1006
1205-002185 U901                                        2007-001319 R111,R803
1205-002268 U902                                        2007-001320 R802
1209-001219 U602                                        2007-001323 R104
1209-001434 U903                                        2007-001325 R410
1405-001019 V301,V302                                   2007-001333 R419
1405-001082 V207,V210,V211,V212,V215                    2007-003001 R401,R403
2007-000138 R203,R804                                   2007-007008 R1003,R1004,R1007,R1008
2007-000140 R304,R305,R306,R309,R310                    2007-007009 R204
2007-000140 R312,R313,R318,R319,R320                    2007-007107 R1009
2007-000140 R321,R322,R420,R426,R427                    2007-007139 R103,R418
                                                  4-1
                      SAMSUNG Proprietary-Contents may change without notice
                     This Document can not be used without Samsung's authorization
                                                                            SGH-D428 Electrical Parts List




 SEC CODE                 Design LOC                        SEC CODE                 Design LOC
2007-007142   R606                                        2203-001405      C909,C911,C912,C913,C914
2007-007197   R113,R116,R206,R208,R209                    2203-001405      C915
2007-007200   R702,R703                                   2203-001598      C103
2007-007308   R607,R608                                   2203-002443      C414
2007-007313   R408                                        2203-002668      C1001,C251,C252
2007-007316   R416                                        2203-005061      C102,C239,C240,C255,C301
2007-007528   R415                                        2203-005061      C302,C303,C304,C402,C404
2007-007590   R411                                        2203-005061      C409,C417,C501,C502,C503
2007-008045   R228                                        2203-005061      C507,C509,C510,C512,C513
2007-008549   R412                                        2203-005061      C514,C608,C706
2007-008806   R229,R230                                   2203-005065      C705
2007-008806   R231                                        2203-005148      C410,C423
2203-000233   C1004,C1007,C1010,C118                      2203-005234      C1008,C1009
2203-000233   C908,C910                                   2203-005288      C1005,C1006,C1012,C1013
2203-000254   C438,C439,C504,C505,C603                    2203-005480      C607,C708,C709
2203-000254   C604,C605,C606,C611,C707                    2203-005482      C108,C435
2203-000254   C710,C711,C712,C801,C803                    2203-005496      C121,C601,C602,C704
2203-000254   C804,C805,C806,C807                         2203-005509      C238,C614,C799
2203-000278   C1023,C241,C244                             2203-005682      C415
2203-000330   C613,C615                                   2203-006053      C109,C110,C111,C112,C113
2203-000359   C401,C431,C432                              2203-006053      C114,C116,C117,C119,C120
2203-000438   C1018,C416,C425,C426,C446                   2203-006093      C237,C433,C434
2203-000438   C802                                        2203-006556      C247,C248,C249,C250
2203-000550   C511                                        2404-001086      C405,C413
2203-000585   C242                                        2404-001105      C202,C203
2203-000628   C442                                        2404-001225      C254
2203-000654   C424,C429                                   2404-001268      C106,C107,C306
2203-000679   C443,C444                                   2404-001305      C1017,C1021,C1022,C420
2203-000679   C610                                        2404-001305      C508
2203-000812   C101,C1014,C1016,C1019                      2404-001375      C436,C437,C440,C441
2203-000812   C1020,C104,C105,C305                        2703-001729      L1002
2203-000812   C427,C906                                   2703-001751      L901
2203-000885   C408                                        2703-002281      L1009
2203-000995   C1002,C1003,C1015,C243                      2703-002309      L401
2203-000995   C406,C407,C904                              2703-002484      L1004,L1006
2203-001210   C445                                        2703-002485      L1003
2203-001405   C403,C430,C609,C905,907                     2801-003747      OSC601
                                                  4-3

                      SAMSUNG Proprietary-Contents may change without notice
                     This Document can not be used without Samsung's authorization
SGH-D48 Electrical Parts List




   SEC CODE                Design LOC
 2809-001264 OSC801
 2901-001260 F201,F202,F203,F204,F208
 2904-001410 F1002
 2909-001191 F1001
 3301-001342 F209,F401,F402,F403,F404
 3301-001342 F405,F501
 3705-001255 F1003
 3708-001982 CN201
 3709-001187 CN101
 3710-001105 CN205
 3710-001673 CN300
 3722-001880 CN401
 4302-001130 M101
 GH09-00025A U601
 GH71-01052A ANT1001




                                                   4-2

                        SAMSUNG Proprietary-Contents may change without notice
                      This Document can not be used without Samsung's authorization
                                                                                SGH-D428 Electrical Parts List




2.LCD Parts List
SEC CODE           Design LOC                             SEC CODE      Design LOC
0403-001446        ZD102                                  2203-000854   C138
0404-001110        ZD114,ZD117                            2203-000995   C111,C112,C113,C121,C122
0404-001172        D100,ZD101                             2203-000995   C123
0406-001150        ZD105                                  2203-001598   C100
0406-001190        ZD103,ZD104,ZD107,ZD108                2203-002443   C101
0406-001190        ZD109,ZD111,ZD115,ZD116                2203-005061   C128,C137
0406-001190        ZD118                                  2203-005482   C104,C116,C120
0406-001197        ZD110,ZD112                            2203-005496   C107
0504-001088        Q102                                   2203-006053   C115
0504-001113        Q104,Q105,Q106,Q107,Q108               2203-006093   C108,C124
0504-001113        Q109                                   2703-002339   L101
0505-001518        Q101                                   2901-001260   F104,F108,F109
0601-001966        LED105,LED106,LED107,LED108            3301-001342   F101,F106,F107,U107
0801-002896        U106                                   3708-001852   CN101
1003-001760        U102                                   3708-001949   CN105
1203-002633        U101                                   3708-001982   CN102
1203-002690        U103
1405-001082        V107,V108
2007-000138        R128,R131,R152,R153,R175
2007-000140        R124,R165,R176
2007-000151        R134,R135,R148
2007-000157        R118
2007-000162        R101,R102,R140
2007-000171        F102,R137,R139,R144,R147
2007-000171        R174
2007-000775        R119,R138
2007-001292        R104
2007-001306        R127,R130,R151,R164
2007-007192        R103
2007-007195        R129,R132,R149,R150
2007-008045        R154,R155,R156,R157,R158
2007-008045        R159
2007-008806        R166,R167,R168,R169,R170
2007-008806        R171,R172,R173
2203-000278        C119,C126,C129,C130,C131
2203-000438        C114
                                                    4-4

                           SAMSUNG Proprietary-Contents may change without notice
                      This Document can not be used without Samsung's authorization
5. SGH-D428 Block Diagrams
1. RF Solution Block Diagram

  Antenna                                                                                                                                                                    CSP1093   TRIDENT
                GSM:925MHz~960MHz
                                                                                                                                                                              R X
                                              L
                                                                         PGA                A D C                                                    PGA             D A C
                                                                                                                                      CHANNEL
              RF                              N                                                                                                                               I,Q
                                                                                                                                       FILTER
            FILTER
                                                                         PGA                A D C                                                    PGA             D A C
                                              A
         DCS:1805MHz~1880MHz

                     RF     PCS:1930MHz~1990MHz
                   FILTER        RF                                                                                   100KHz
                                                            π/ 2                                                                                SI4201
                               FILTER



                                                                                                                                                                                        DSP16000
                                                                               SI4200
                                                                                                                                                                             SERIAL
                                                                                                                                                  SERIAL DATA                DATA,
                     ASM                                                                                                                                                                ARM7TDMI
                                                                                                                                                  INTERFACE                  CLK,
                                                                                                                                                                             LE




                                      GSM:890MHz~915MHz
                                                                                                                                                                              T X
                                                                                   D E T


                                        PAM
                                                                                                                                                                              I,Q




                                      DCS:1710MHz~1785MHz
                                                                                                                                                    TCVCXO
                                                                                                                                                    13 MHz
                                      PCS:1850MHz~1910MHz

                                                                                                    IF                                                               A F C
                                                                   RF
                                                                                                    PLL
                                                                   PLL                                                             C L K


                                                                               SI4133T

                                                                                                                                                                UI

                                                                                                    5-1
                                                                        SAMSUNG Proprietary-Contents may change without notice
                                                                   This Document can not be used without Samsung's authorization
SGH-D428 Block Diagrams



2. Base Band Solution Block Diagram

     CLE1006                          PSC 2106                     VC-TCXO-208C3

       SIM                                                                   X-TAL
    Interface
                                              Power                          13MHz
                                      (DC/DC, CHARGER SIM)




                              TRIDENT
      GPRS
                                                               IO                                     CSP 1093                                      RF SOLUTION
                                 ACC        DSP16000
                                                             RWN                                                                           TXIP
                                                            AB [8:0]                                                                       TXIN
                                                            DB [15:0]                     IO                  <RF DRIVER>                  TXQP
                                                              INt1                     RWN                       TX I/Q                    TXQN
                                                             IRQx                     AB [8:0]                   RX I/Q                    RXIP
                                                 ARM7
                                                              Pax                     DB[15:0]                    TXP                      RXIN       -RFIC
                                                             RSTB                       INT1                    SERCK                     RXQP        -PAM
                                                                                       IRQx                      SERLE                    RXQN    -MAIN VCO
       X-TAL
                                 RTC                                                     Pax                    SERDA                     SERCK    -TX VCO
     32.768 KHz
                                                                                       RSTB                      OCTL                     SCRLE     -IF VCO
                                                 EMI                                                                                      SERDA
                                                            KEYPAD
                                                                                                                                          RFOVL
                                                                                                                                            TXP
                                                                                                     Audio Part
                                                                                                                                           OCTL

   SID13712                              FLASH
                                                    SRAM
                                          ROM
                                                    (16M)
                                         (128M)
       EPSON
                                           Memory Part            TSC2200                  YMU765                                 Audio

                                                                    Touch
                                                                    Screen                 YAMAHA                                  LCD
                                                                      IC

                                                                                                                                  KeyPad




                                                                                              5-2
                                                                   SAMSUNG Proprietary-Contents may change without notice
                                                                  This Document can not be used without Samsung's authorization
6. SGH-D428 PCB Diagrams
1.Main




                                                                                                     G1




                                                                                                                                                                                                                                                                                                                                           ZD201


                                                                                                                                                                                                                                                                                                                                                                  C251
                                                                                                                                                                                                                                                                                                                                                                         C252
                    F402
            D201




                                                                                                                                                                        R217




                                                                                                                                           R425
                                                                                                                                           C430
     C255




                                                                                                                                 R410
                                                                                                                                 R409
                                                                                                                          C409
                                                                                                                                 C416
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    C237




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            C254
                                                                                                                                                                        R216




                                                               C424 C438 R417
                            CN401                                                       R407 C408




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 G4
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       C103
                                                                                                                                                                                                                                                                                                                                                                        C509




                                                                                                                                                                                                                                                                                                   R516
                                                                                                                                                                                                                                                                                                   R515
                                                                                                                                                                                                                                                                                                   R514
                                                                                                                                                                                                                                                                                                   R513
                                                                                                                                                                                                                                                                                                   R517
                                                                                                                                                                                                                                                                                                   R518
                                                                                                                                                                                                                                                                                                   R511
                                                                                                                                                                                                                                                                                            C501
                                                                                                                                                                     C413
                                                                                                       C405 R404 C403
                                                                                        R406




                                                                                                                                                                                                                 C203
                                                                                                                                                                                                                                                                                                                                                                        C514                                                                                                                                          R214



                                                                                       R405
                                                                                       C401
                                                                                                                                                                                     U203                                                                                                                                                                                                                                                                                                                             R232
            CN205




                                                                                                                                  U402                                                                                                                                                                                                                                                                                                                                                             R211                                    C105




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    V212
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    C238
                                                                                                                                                               C417
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   R212                                    C104




                                                                                                                                                                                                                 C202
                                                                                C402                                                                           C407




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ZD305
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   C305
                                                              ZD403                                                                                            C406                                                                                            U500                                                                                                                                                                                                                                C303                                       C1017
                                                            F405




                                                                                                                                                                                                                                                                                                                                                                                                                                                      CN101
                                                                                                                                                                                                                                                                                                                                U502
                                                     C442
                                              C446
                           F401




                                  R402 R427
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   R206
                                                                                                                                                                                             R1004                                                                                                                                                                                                                                                                                                 R208




                                                                                                                                                                             R1002
                                                                                                                                                                                     R1003
                                                                                       C1015 L1008




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   R203




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    ZD304
                                                                                                                                                                                             R1001




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              C306
                                                                                                                                                                            C1023            C904                                                                                                                                                                                                                                                                                                  R209
                                                                                                                                                                                                                            C506




                                                                                                                                                                                                                                                                                                                                                           C511 R510
                                                                                                                                                                            C1018 C1016                     R1009                                                                           R519                         R505 C512    R512
                                                                                                                                                                                                                            R507                                         OSC601




                                                                                                                                                                                                                                                 C615




                                                                                                                                                                                                                                                                                                   R503
                                                                                                                                                                                                                                                                                            C613
                                                                                                                                                                                                                                                                                            C510
                                                                                                                                                                                                                                                                                                                         R506 C513    R508
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              R312 R313
                                                                                                                                                                                     C1021                                  C503                                                                                         C504 C502    R509




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           R305 R318 R320 R322 R310
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           R304 R306 R319 R321 R309
                                                                                                                                 U1001




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           C302
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       ZD301
                                                                                                                                                                                                                            R504




                                                                                                                                                                                                                                                                                                                                                                         R520 C515
                                                                                                                                                                                                                                                                                                                         C607
                                                                                                                                                                            C1020                                           C505                                                                                         C602 R606
                                                                                                                                                                            C1019                                           C609                                                                                         C611 C614 R303




                                                                                                                                                                                                             C1022




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      CN300
                                                                                                                                                                                             C906 R1007
                                                                                                                                                                            R1006                                           C612                                                                                         C610 R607                                                                                                                                                                                                     ZD302




                                                                                                                                                                                                                                                                                                                                                                           TP600
                                                                                                                                                                                                                                                                                                                         C603 R608 F501




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             V301
                                                                                                                                                                             R1005
                                                                                                                                                                                     R1008
                                                                                                                                                                                                                            R602                                                                                                                                                                           D103




                                                                                                                                                                                                                                                                                                                                                                                                                          R113




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   C106
                                                                                                                                                                                                                                                                                                                                                                                                                                                                ZD202
                                                                                                                                                                                                                            R302                                              U601                                       R605                                                                                                       C122
                                                                                                                                                                                                                                                                                                                                                   C508                                                     R112
                                                                                                                                                                                                                            C608                                                                                                                                                     Q104
                                                                                                                                                                                                                                                                                                                         R601                                                                                 C301 R114                                                                                     C304                       ZD303
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         R202




                                                                                                                                                                                                                                                                                                                                                                                                                                            D102
                                                                                                                                                                                                                            C606                                                                                         R609




                                                                                                                                                                                                                                                                                                                                                                                                                                                                     R102 R104
                                                                                                                                                                                                                                                                                                                                                                                                              R201 R116




                                                                                                                                                                                                                                                                                                                                          R610




                                                                                                                                                                                                                                                                                                                                                                                                                                                      Q103
                                                            L1007
                                                                          C1014




                                                                                                                                                                                                                                                                                                                                                                U501
                                                                                                     C1010 C1011 C1002                                     C1013       C905 C911




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Q101
                                                                                                                                     F1002




                                                                                                                                                                                                                            C601                                                                                         R604




                                                                                                                                                                                                                                                                                                                                                                                                                  C117
                                                                                                                                                                                                                                                                                                                                                                                                                          C119
                                                                                                                                                                                                                                                                                                                                                                                                                                   C116
                                                                                                                                                           L1006
                                                                                                                                                                                                                            C604                                                                                                                                                                                                                                                         Q102
                                                                                                                                                                                                                                                                                                                         R603




                                                                                                                                                                                                                                                                                                                                                                                                                                            R115
                                                                                                                                                           C1012




                                                                                                                                                                                                                                                                                                                                                                                     R106 C115 R110 C121
                                                                         C1004 C1007




                                                                                                                                                                                                                                                                                                                                                                  C507
                                                                                                                                                                                                                            C605 C616 V302




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          R103
                                                                                                                                   C1009




                                                                                                                                                                                                                                                                                                                                                                       R799
                                                                                                                                                                                                                                                                                                                                                                       C799
                                                                                                                                             L1003 L1004




                                                                                                                                                                                     U902




                                                                                                                                                                                                                                                                                                   R315
                                                                                                                                                                                                                                                                                                                                        U602




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     U101
                                                                                                                  F1001




                                                                                                                                   C1008




                                                                                                                                                                                                                                                                                                   R314
                                                                                                                                                                                                                                 R317


                                                                                                                                   C1006
                                                                                                                                                                                                                                                                                                                                                                                                                                                                      C101
                            F1003




                                                                                                                                   C1005                                                                                                                                                                                                                           U703




                                                                                                                                                                                                                                                                                                                                                   TP602
                                                                                                                                                                                                                                                                                                                          C410
                                                                         C1003




                                                                                                                                                                                                                                                                                                                                                                                                                                                                      C102                                  C415
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 C107

                                                                                                                                                                                                                                                                              U701
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           R412




                                                                                                                                                                                                                                                                                                                         C429 C705 R411 R408
                                                                                                                                                                                                                                                                                                                                   C414 C412
                                                                                                                                                                                                                                                                                                                                               R413 C411
                                                                                                                                                                                                                                                                                                                                               C419 C435
                                                                                                                                                                                                                                                                                                                                                                                                                                 U102




                                                                                                                                                                                                                                                                                                                                                                                                                                                                               C123
                                                                                                                                                                            C915




                                                                                                                                                                                                                                                                                                   R416 C703 C702 R316
                                                                                                                                                                                                          C909
                                                                                                                                                                                                                 C907




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  MIC401
                                                                                                                                    L901                                                                                                                                                                                                                               R704                                                                                                                                L401
                                                                                                                                                                                      C908
                                                C807 R801
                                                                                                                                                              C912




                                                                                                                                                                                                                                   R420 C706




                                                                                                                                                                                                                                                                                                                                                                                                                                                                        R301 C118 R111
                                                                                                       C910                                                                                                                                                                                                                                                        U702
                            C1001                                                                      R804




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    M101
                                                                                                                                                                                             U901




                                                     OSC801                                            C805
                             L1002




                                                                                                                                  U903                                                                                                                                                                                                                                 R701




                                                                                                                                                                                                                                                                                                                                               C420
                                                                                                                                                              C913




                                                                                                                                                                                                                                                                                                                                                                                     C108
                                                                                                                                                                                                                                                                              C712
                                                                                                                                                                                                                                                                                     R421



                                                                                                                                                                                                                                                                                            R418
                                                                                                                                                                                                                                                                         C707 C701



                                                                                                                                                                                                                                                                                     C704
                                                                                                                                                                                                                                                                                            C428
                                                                                                                                                                                                                                                                         C708 R702
                                                                                                                                                                                                                                                             C709 C711
                                                                                                                                                                                                                                               Q401
                                                                                                                                                                                                                     C914




                                                                                                                                                                                                                                                                                                                                                                                                           C111
                                                                                                                                                                                                                                                                                                                                                                                                                   C120
                                                                                                                                                                                                                                                                                                                                                                                                                            C114
                                                                                                                                                                                                                                                                                                                                                                                                                                     C113
                                                                                                                                                                                                                                                                                                                                                                                                                                              C112
                                                                                                                                                                                                                                                                                                                                                                                                                                                     C110
                                                                                                                                                                                                                                                                                                                                                                                                                                                              C109
                            L1009                                                                                                                                                                                                                                                                                                                                 U704




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            D101
                                              C806




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              G3
              ANT1001                                                                                                                                                                                                                                                          R703 R415 C423
                                                                                                                                                                                                                                                      R419




                                                                                                                                                                                                R802 C802
                                                                                                                                                                                                                                   ZD701
                                                                                                                                                                               C804
                                                                                                                                                                               C801




                                                                                                                                                                                                                                                                               R414 C710




                                                                                                                                                                                                                                                                                                                                                                           R705
                                                                                                                                                                                                R803 C803
                                                                                                                                                                                                                                                      R423 C439
                                                                                                     G2




                                                                                                                                                                                                                                                                                                                                                                                     R204                                                                      R207




                                                                                                                                                                                                                                                                                6-1
                                                                                                                                                                                                             SAMSUNG Proprietary-Contents may change without notice
                                                                                                                                                                                                          This Document can not be used without Samsung's authorization
SGH-D428 PCB Diagrams




                                                           LED217




                                                                                                                    TDO_1
                                                                                 GND_1




                                                                                                  TRST_1




                                                                                                                                    F_WE_1
                        V211                                                                                                                                       CN202
                                                                                                                                                    LED211




                                                                                         TMS_1




                                                                                                                            TDI_1
                                                                                                            TCK_1




                                                                                                                                                                                                                                                                                                                       C443 C440
                                                               LED212 V214




                                                                                                                                                                                                                                                                C445 R426 C433
                                                                                                                                                                                                                                                                                 C427
                                                                                                                                                                                                                                                                                               C434




                                                                                                                                                                                                                                                                                               C426 F404 C425
                                                                                                                                                                                  C250 R231




                                                                                                                                                                                                                                                                                                                C436
                                                                                                                                                                                                          C239                                                                          F403
                                                                                                                                                                                                   F203




                                                                                                                                                                                       R230 C249
                                                                                                                                                                                       R229 C248
                                                                                                                                                                                       R228 C247
                                                                                                                                                                                                          R233




                                                                                                                                                                                                                       F202




                                                                                                                                                                                                                                                                                        U401
                                                                                                                                                             1




                                                                                                                                                                                                                                                                                                                        C441 C444
                                                                                                                                    4




                                                                                                                                                                                                                                                                                                                C437
                                                                                 7                                                                                                                          U202
                                               F3




                                                                                                                                                                                      F201         F204               F208                                      C431 C432 R403 C404 ZD402
                                                                                                                                                                                                                                                                  R401
                                                                                                                                                                                                          C240 F209




                                                                                                                                                LED206
                                                                                                                                        V208
                                                                                                           V209
                                                                                         LED208
                                               LED209
                               V210




                                                                                                                                                                                                                                                 CN201
                         0




                                                                             8




                                                                                                                    5




                                                                                                                                                         2
                                      LED203




                                                        V207




                                                                                         LED202



                                                                                                           V206




                                                                                                                                       V205


                                                                                                                                                LED201
                                               F4




                                                                                                                                                                                                                                     R226 C242
                                                                                 9




                                                                                                                                    6




                                                                                                                                                                                                                                                                L201
                                                                                                                                                                                                                                                         C253
                                                                                                                                                             3




                                                                                                                                                                                                                                     R220
                                                                                                                                                                                                                                     R222 C241




                                                                                                                                                                                                                              R221



                                                                                                                                                                                                                                         C243
                                                                                                                                                                                                                                     R225




                                                                                                                                                                                                                                                                TP201
                                                                                                                                                                                                                                     R224
                                                               V216 LED207




                                                                                                                                                                                                                                     R223 C244
                                                                                                                                               LED204
                                                                                                                                                V215




                                                                                                                                                                                                     6-2
                                                                                                                                                                  SAMSUNG Proprietary-Contents may change without notice
                                                                                                                                                                 This Document can not be used without Samsung's authorization
                                                                                                                                                                                                                                                                                     SGH-D428 PCB Diagrams



2. LCD
※




                                                                                                                       C135                                                                                  ZD103 ZD109




                                                                                                                                                                                                      C138
                                                                                                                 TP2




                                                                                                                                                                                              ZD117
                                                                                                                       C136                                                                           ZD114

                                                                                                                                                                                                             Q106            Q105                     V107 V108
                                                                                                                                                                                               C113




                                                                                                                                                                                                               R130 R131




                                                                                                                                                                                                                                                               Q101



                                                                                                                                                                                                                                                                              C100
                                                                                                                                                                                               R129 R132                     C112




                                                                                                                                                                                                                             R128
                                                                                                                                                                                                               C111
                                                                                                                                                                                               R127
                                                                                                                                                                                                      Q104




                                                                                                                                                                                                                                                               C101 ZD101
                                                                                                                                                                                                                                                       ZD102
                                                                                                                                                                                                                                    R156
                                                                                                                                                                                                                                    R154
                                                                                                                                                                                                                                    R155




                                                                                                                                                                                                                                               R103




                                                                                                                                                                                                                                                                            L101
                                                                                                                                                                                                                                              R176
                                                                                                                                                                                                                                                                                      U101




                                                                                                          C115
                                                                                  U103
                                                                                                                                                                                                                                                      R104
                            CN105
                                                                                      C120
                                                                               R140             C116
                     R136R137R138 C114 R139 F101
         ZD110 ZD112 F102     R170
                           R167       R171
                           R166 ZD118 R172
                                                                                  R101 R147




                                      R173
                                                                 U102




                           R169
                           R168     C104
                                                                                              Q102
                                    U107 R174
                                                F107




                                                                                                                                                                                                             CN102
                 CN101




                                                                                              R102
                             C134




                                                                                              R124
                                                C103 C102
                                                                        F106




                             C124                                                             C125
                                                                                              R161 R165
                                    C107
                             R118




                                                       D100




                                                                               U106
                                                              C105
                                                              R175




                                                                        C128 C126
          C108              F109                 F108         F104
          SPK1




                         ZD111

                                                                                                                                                                                                                                    R157




                                                                                                                                                                                                  C137
                                                                                                                                                                                                         R119  C119                 R159   ZD107 ZD116 ZD108 ZD115 ZD104
                                                                                                                                                                                                         ZD105 R144                 R158

                                                                                                                                                                                               C131 R135                    R134
                                                                                                                       C118                                                                    C130
                                                                                                                                                                                                     Q109                   Q108
                                                                                                                                                                                               C129
                                                                                                                 TP1




                                                                                                                                                                                                                     C122
                                                                                                                                                                                              C121 R149                     R152
                                                                                                                       C133                                                                   R150 R148                     R153
                                                                                                                                                                                                                            R164




                                                                                                                                                                                                                Q107
                                                                                                                                                                                                                            R151
                                                                                                                                                                                                                            C123




                                                                                                                                                          6-3
                                                                                                                               SAMSUNG Proprietary-Contents may change without notice
                                                                                                                              This Document can not be used without Samsung's authorization
SGH-D428 PCB Diagrams




                                                            MENU
                                         SEND




                                                                   LED106
                        LED105




                                                LEFT
                                                 INTERNET
                                 UNDER




                                                                   OVER
               CLR




                                                RIGHT
                        LED107




                                                                    LED108




                                   END_PWR
                                                            STO




                                                                                                         6-4
                                                                              SAMSUNG Proprietary-Contents may change without notice
                                                                             This Document can not be used without Samsung's authorization

				
DOCUMENT INFO
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posted:8/24/2012
language:English
pages:37
Description: Samsung Service Manual SGH-D428