Acer P5271 Acer P5271, P5271i, P5290 and P5390W Projector Series Service Guide - Page 70

1280 x800@75H (for P5390W) - Test Pattern: Blue 60 Inspection item - Dark blemish check. Criteria - The dark blemish should be no more than 10 under blue 60 pattern. - Ref. Defect specification table 6. Focus Test Procedure - Test equipment: video generator - Test signal: analog 1024 x 768@60Hz (for P5271/P5290/P5271i); 1280 x800@75H (for P5390W) - Test Pattern: Full screen Inspection item - Focus check Criteria -F rom screen 2 M via visual to check the focus, look at the entire screen, focus shall be clear, crisp, and sharp over the entire surface of the display pattern. (Blur word on one of the corner after adjustment is acceptable. However, the word should at least be recognizable.) Blue 60 Full screen 7. Color Performance Procedure Inspection item Criteria - Test equipment: video generator. - Test signal: 480p, 720p, 1080p - Test Pattern: Master, 64 gray RGBW or SMPTE bar * Please refer to 4-2 to get into service mode. Use 720p & 1080p signal, master pattern to do HDTV test. Color cannot discolor to purple and blue. - Check if each color level is well-functioned. - Color saturation - Screen appears normal. It should not have any abnormal condition, such as lines appear on the screen and so on. - Color appears normal. - It is unacceptable to have few lines flashing. - RGBW should all appear normal on the screen and sort from R -G-B-W. - Color levels should be sufficient and normal. (The unidentified color levels on both left and Master 64 gray RGBW SMPTE BAR P5271/P5290/P5390W/P5271i Confidential 4-