Acer P3250 Refresh Service Manual page 61

No Symptom
7 Image Flicker
8 Colour Abnormal
Poor Uniformity/
9
Shadow
Dead Pixel/Dust
10
(Out of spec.)
11 Garbage Image
• Do "Reset (All data)" of the OSD Menu
• Ensure that the signal cables and source are work as well-
Check Lamp Module
• Check Colour Wheel
• Check DMD Board
• Check Main Board
• Do "Reset (All data)" of the OSD Menu
• Adjust Colour Wheel Index
• Check Main Board
• Check DMD Board
• Check Colour Wheel
• 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
• Check 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
P3150/P3250/P3150 Refresh/P3250 Refresh
Procedure
Confidential
3-6