Acer P7280 Refresh - Page 91

P7280/P7270I/P7280 Refresh/P7270I Refresh Condential
3-4
No Symptom
Procedure
7 Image Flicker
- Do “Reset(All data)” of the OSD Menu
- Ensure that the signal cables and source are work as well
- Check Lamp Module
- Check Color Wheel
- 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 Color Wheel
9
Poor Uniformity/
Shadow
- Ensure the projection screen 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 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 as well
- Check Main Board
- Check DMD Board