Optoma EX330 Service Manual page 36

4. Dark pixel Dark pixel
Procedure
Inspection item
Criteria
5. Bright Blemish
Procedure
Inspection item
Criteria
6. Dark Blemish
Procedure
Inspection item
Criteria
- Test equipment: video generator.
- Test signal: analog 1024x768@60Hz.
- Test Pattern: White pattern
- Dark pixels check.
- White pattern
- Adjacent dark pixel.
- It is acceptable when it has 7 dead pixels on any
pattern, the picture frame should not appear yel-
low, shadow, light blue, and other nonperform-
ing.
- Adjacent pixel with each other is unacceptable.
- Ref. Defect specification table
Note: The defect criteria follows TI specification.
- Test equipment: video generator
- Test signal: 1024x768 @60Hz
- Test Pattern: Gray 10
- Bright blemish check
- The bright blemish should be less or
equal to 4 under gray 10 pattern.
- Ref. Defect specification table
- Test equipment: video generator
- Test signal: 1024x768 @60Hz
- Test Pattern: Blue 60
- Dark blemish check
- The dark blemish should be less or
equal to 4 under blue 60 pattern.
- Ref. Defect specification table
EX330/EW330/EX330(1W)/EW330(1W) Confidential
Full white
Gray 10
Blue 60
Full screen
4-6