HD20/HD200X/HD2200/HD20LV/HD21/HD23
Confidential
3-4
No
Symptom
Procedure
7
Image Flicker
- Do
"
Reset (All data)
"
of the OSD Menu
- Ensure the signal cables and source work well
- Check Lamp Module
- Check Lamp Driver
- Check Color Wheel
- Check Photo Sensor
- Check DMD Board
- Check Main Board
8
Color Abnormal
- Do
"
Reset (All data)
"
of the OSD Menu
- Adjust Color Wheel Index
- Check Main Board
- Check DMD Board
- Check Color Wheel
9
Poor Uniformity/
Shadow
- Ensure the projection screen is without dirt
- Ensure the projection lens is clean
- Ensure the Brightness is within spec.
- Check rod alignment
- Check Engine Module
10
Dead Pixel/Dust
(Out of spec.)
- Ensure the projection screen is without dirt
- Ensure the projection lens is clean
- Clean DMD Chip and Engine Module
- Check DMD Chip
- Check Engine Module
11
Garbage Image
- Ensure that the signal cables and source work well
- Check Main Board
- Check DMD Board
