Acer K130 Acer K130 Projector Service Guide - Page 53

Pixel specification Order Symptom 1 Bright pixel ( dots) 2 Dark pixel(dots) 3 Bright blemish 4 Dark Blemish 5 Bright dot on frame 6 Unstable pixel 7 Adjacent dark pixel Pattern Full black Full white Gray 10 Blue 60 Full black Full white & Full black Full white & Full black A=0 A ≤ 3 A=0 A =0 ≤ 1 A ≤ 1 A = 0 Criteria 6. Focus Test Procedure Inspection item Criteria - Test equipment: video generator - Test signal: 1280*800@60Hz -Test Pattern: Full screen - Focus check -F rom screen 1.0M 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.) Full Screen A OK Note:After adiust the focus , if the screen appear as picture A will be regarded as OK .Otherwise , if the screen appear as picture B will be adjudicated as NG. K130 B NG"Poor" Confidential 4-