Optoma HD25 Service Manual page 24

Criteria
Pixel specification
Order
 Bright pixel ( dots)
2 Dark pixel(dots)
3 Unstable pixel (dots)
4 Adjacent pixel (dots)
5 Bright blemish (Dirty)
6 Dark Blemish(Dirty)
7 Bright pixel on frame
6. Focus Test
Procedure
Inspection item
Criteria
7. Color Performance
Procedure
- The bright blemish is unacceptable under blue
60 pattern in zone A and no more than 4
bright blemish in zone B.
- Please refer to Pixel specification table. .
Symptom
- Test equipment: video generator.
- Test signal: analog 1920x1080�60Hz
- Test Pattern: full screen
- Focus check
- From screen 1.8M 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 pat-
tern. (Blur word on one of the corner after adjust-
ment is acceptable. However, the word should at
least be recognizable.)
- Test equipment: video generator.
- Test signal: 1920x1080�60Hz, 1080i 1920x1080�60Hz, 1080i
- Test Pattern: 64 gray RGBW
Pattern
Gray 10 pattern
White pattern
Any pattern
Any pattern
Gray 10 pattern
Blue 60 pattern
Gray 10 pattern
1920x1080�60Hz �60Hz
�60Hz, 1080i
HD25/HD25LV
Criteria
A+B=0
A=0
B≤2
A+B=0
A+B=0
A=0
B≤4
(diameter<1 inch)
A=0
B≤4
(diameter<1 inch)
=0
Full screen
Confidential
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