Acer P5270 Acer P5270 Projector Series Service Guide - Page 71

No Step 3 Focus 4 HDTV Specification Procedure The text in the corner should be clear after adjust the focus ring. - Test Signal : 1024x768@60Hz - Test Pattern : Ful-xga - Adjust the center clearly; meanwhile, one slightly vague corner in the image is allowed. No discolor - Test Signal : 720p, 1080i - Test Pattern : Master - Equipment: Quantum Data 802B or CHROMA2327 Photo Use 720P&1080i signal, Master pattern to do HDTV test. Color cannot discolor to purple and blue. If the line disclors, it's normal. If the test result was in discoloration or flickering, please return the unit back to the repair center. 5 Color Performance - Test Signal : 1024x768@60Hz - Test Pattern : PANA-ICON Pattern & 64 GRAYS RGBW - Please check and ensure if each color is normal and distinguishable. - If not, please adjust color index of the Engineering Mode. - Fix OSD to re-sync or track Frenquency. Confidential 4-5 P5270/P5270 Refresh