Acer P1166 - Manual (Page 64)

P1166 / P1266 / P1266i / P1166P / P1266P Confidential 3-4
No Symptom Procedure
5 Mechanical Noise - Check Color Wheel
- Check Fan Module
6 Line Bar / Line
Defect
- Sometimes it’s because of the DMD Chip and the DMD
Board did not assemble properly
- Check DMD Board
- Check DMD Chip
- Check Main Board
7 Image Flicker - Do “Reset” of the OSD Menu
- Ensure the Signal Cable and Source work as well
- Check Lamp Module
- Check Color Wheel
- Check DMD Board
- Check Main Board
8 Color Abnormal - Do “Reset” of the OSD Menu
- Adjust Color Wheel Index
- Check Main Board
- Check Color Wheel
9 Poor Uniformity /
Shadow
- Ensure the Projection Screen without dirt
- Ensure the Projection Lens is clean
- Ensure the Brightness is within spec.
(Replace the Lamp if the Brightness is less than spec.)
- Ensure DMD Chip is clean
- Check Engine Module
0 Dead Pixel / Dust
(Out of spec.)
- Ensure the Projection Screen without dirt
- Ensure the Projection Lens is clean
- Clean DMD Chip and Engine Module
- Check DMD Chip
- Check Engine Module
 Garbage Image - Ensure the Signal Cable and Source work as well
- Check Main Board
- Check DMD Board