Optoma EX762 Service Manual page 33

No Symptom
Poor Uniformity/
9
Shadow
Dead Pixel/Dust
0
(Out of spec.)
 Garbage Image
Remote
2 Controller/Control
Panel Failed
Function
3
Abnormal
4 Audio Abnormal
- Ensure the projection screen without dirt
- Ensure the projection lens is clean
- Ensure the Brightness is within spec.
- Check rod alignment
- Check Engine Module
- Ensure the projection screen without dirt
- Ensure the projection lens is clean
- Clean DMD Chip and Engine Module
- Check DMD Chip
- Check Engine Module
- Ensure that the signal cables and source work as well
- Check Main Board
- Check DMD Board
- Remote Controller
a. Check Battery
b. Check Remote Controller
c. Check IR Sensor Board
d. Check Main Board
- Control Panel
a. Check FPC
b. Check Keypad
c. Check Main Board
- Do "Reset (All data)" of the OSD Menu
- Check Main Board
- Check DMD Board
- Ensure that the signal cables and source are work as well
- Ensure that your Projector is not in "Mute" mode
- Check the interior Speakers of the projector
- Check the exterior Speaker that you are using
- Check Main Board
- Check Daughter Board
Procedure
EX762/EW762
Confidential
3-4