Acer P3250 Acer P1350 and P3250 Projector Series Service Guide - Page 61

No Symptom Procedure • Do "Reset (All data)" of the OSD Menu • Ensure that the signal cables and source are work as wellCheck Lamp Module 7 Image Flicker • Check Colour Wheel • Check DMD Board • Check Main Board • Do "Reset (All data)" of the OSD Menu • Adjust Colour Wheel Index 8 Colour Abnormal • Check Main Board • Check DMD Board • Check Colour Wheel • Ensure the projection screen without dirt • Ensure the projection lens is clean 9 Poor Uniformity/ Shadow • Ensure the Brightness is within spec • Check rod alignment • Check Engine Module • Ensure the projection screen without dirt • Ensure the projection lens is clean 10 Dead Pixel/Dust (Out of spec.) • Check DMD Chip and Engine Module • Check DMD Chip • Check Engine Module • Ensure that the signal cables and source work as well. 11 Garbage Image • Check Main Board • Check DMD Board P3150/P3250/P3150 Refresh/P3250 Refresh Confidential 3-6