Cleaning your Projector Filters
There are two main types of projectors in use in the Burke
County School System. Mitsubishi projectors such as the
XD-206U are commonly used in Patton High School; other
schools often use the NEC 400 series such as the NP410
model. Only the NEC projectors have cleanable air filters;
the Mitsubishi projectors do not have filters.
NO FILTERS HAS FILTERS
This Mitsubishi projector has no filters. It generally has to be
dismounted for cleaning and is not considered to be teacher-
serviceable. Refer requests to your engineer or media
coordinator who will relay them to us.
This NEC model NP410 has filters that you can and should clean at regular
Intervals. They are located at the side and back of the projector.
Cleaning the filters
To clean the filters, you will need:
•The projector should be powered off and allowed to
cool at least 10 minutes or to room temperature
•A ladder or some safe means to get to the projector
•Canned air or equivalent (Compressed air can be
used if available and if it can be controlled to prevent
too much pressure from damaging the foam rubber
At the side…
And at the back
Side view of projector with filter assembly lying on top. Filter is
cleaned by removing foam insert and blowing canned air or
equivalent through the foam from the inside to the outside. The foam
insert is then replaced back into the holder and snapped back onto
Back view of projector with filter assembly lying on top. This filter is
cleaned like the side filter by removing the screen insert and blowing
canned air or equivalent through the insert from its inside surface and
then replacing it in the filter assembly. The filter assembly is then
snapped back onto the projector.
After cleaning the filters, the filter hours count needs to be reset. Power on the
projector and press the menu button on the remote.
Press the right arrow button on the remote until you highlight the Reset
function; then press the down arrow button until you highlight Clear Filter
After resetting the filter hours, check them by highlighting the Info Tab on the
menu display. It should read “0”; this example reads 119 hours as it has not
been reset. NEVER RESET LAMP HOURS UNLESS THE LAMP IS
REPLACED!!!!!!!! Allowing the lamp to run past its rated lifetime can cause
damage to the projector and possible shattered glass along with the release
of mercury into the classroom.