Optoma EX542 Service Manual page 44

2.Bright pixel
Procedure
Inspection item
Criteria
3. Dark pixel
Procedure
Inspection item
Criteria
EX540/EX542/EX612/EX615/EX762/EX540I/EX542I/ES523ST/EW533ST
- The PC mode functionally sure be workable
include support format with frequency and auto
detected functional will be workable.
- Test equipment: video generator.
- Test signal: analog 1024x768@60Hz.
- Test Pattern: Gray 10
- Bright pixel check.
- Bright pixel is unacceptable under gray 10
pattern.
Please refer to the figure in 4-4 Test Condition
for Frame and Active area.
Note: The defect criteria follows TI specification.
- Test equipment: video generator.
- Test signal: analog 1024x768@60Hz.
- Test Pattern: White pattern
- Dark pixels check.
- White pattern (IRE=100)
- Adjacent dark pixel.
- The number of the dead pixels should be less or
equal to 4 pixels.
- Adjacent pixel with each other is unacceptable.
Note: The defect criteria follows TI specification.
Gray 10
White pattern
Confidential
4-6