1
2
3
4
5
6
7
8
RX UNIT
D
BPF& 1st MIX Q4 3SK320 CRYSTAL BPF F1,F2 21.6MHz IF AMP Q1 2SC4726 SQL DET D4 1SS226 C9 C55 C56 C57 R13 R79 Q14
ANT
LPF
ANT SW D1,D10 1SS356
RF AMP Q18 2SK302
BPF
D
T2,T3 LPF RX VCO Q15 2SK210 TX VCO TX POWER AMP. Q2 2SC1971 TX YOUNGER Q3 2SC2053 BUFF AMP Q4 2SC2408 D9 DAN235E RX/TX SW TX/RX TRANS Q12,Q13,Q20 FMA5A,2SC4097 LPF UNLOCK AF OUT AMP Q14 2SC4226 BUFF AMP Q9 2SC4226 Q16 2SK210
VCO & PLL UNIT
X2 12.8MHz TX D6 1SV217 RX D5 1SV217
2nd LOCAL MIXER,SQL IC2 DBL5018L 2nd-IF DET
PLL IC102 M56760 X1 21.145MHz
BPF
POWER
DET APC IC4 TA75S01
HPF DATA CLK
D11 1SS356
C
H/L
CS
SQL
MOD D7 1SV217
F3 455KHz 2nd-if
T1 A001
MOD
TX/RX SW
C
TX POWER AMP. UNIT
J1,J201
HPF VOL AF POWER AMP SPEAKER IC206 NJM386 AF MUTE Q204 2SC4097 Q206 2SC4097 1050Hz CHECK IC207,Q207 LMC567 2SC4097
B
TX/RX SW
VCO POWER
TX POWER
RX POWER
WX POWER
LCD
AUDIO POWER UNIT Q216 FMA5A
POWER UNIT Q215 FMA5A
WX ALERT DET WX CONTRAL SAVE CONTRAL TX/RX CONTRAL
B
m-COM COMPUTER
UP MONI
KEY BOARD DOWN CH16 CALL LOCK
AF POWER Q205,Q206 2SA1298 2SC2712
MUTE
BEEP J6
IC201
H/L SQL C0NTRAL
UPD75308
MEMO DATE BACKUP SQD1 SQD2 SQD3 LOB BAT RESET IC207 AT93C46
EXT MIC&SP
POWER +5V
AUDIO AMP. UNIT
PTT CHECK Q212 2SA1577 MIC MIC AMP IC205:C,D NJM3403(2/4) PTT
A
CPU
+5V
IC209 Q205 Q214 D204
:LM2931 2SC4097 2SA1363 1SS226
IC208 NJM4051
PTT POWER SW
BACK LAMP-CONT Q208 2SC4097 Q211 2SA1577Q BACK LAMP
LPF MOD MOD
LOW BAT BAT. 7.2V R373 R374,R375 RESET IC203,Q201 2SC4097 XC61AC4302 LOW BAT X201 4.19MHz RESET
MIC AMP. UNIT
IC205:A,B NJM3403(2/4)
CPU & DISPLAY UNIT
A
TM-882
1 2 3 4
BLOCK DIAGRAM
5 6 7 8