Acer P3250 Refresh Service Manual page 68

4. Dead Pixel (Bright pixel)
Procedure
Inspection item
Criteria
5. Dead Pixel (Dark pixel)
Procedure
Inspection item
Criteria
more than four under blue 60 pattern.
- Ref. below table
Note: The defect criteria follows TI specification.
- Test equipment: video generator.
- Test signal: analog 1024x768@60Hz.
- Test Pattern: full black
- Bright pixel check.
Note: Frame dimension under operative zone1
inch
- Bright pixel is unacceptable.
- Ref. below table
Note: The defect criteria follows TI specification.
- Test equipment: video generator.
- Test signal: analog 1024x768@60Hz.
- Test Pattern: full white
- Dead pixels check.
- White pattern (IRE=100)
- Adjacent dark pixel.
- The number of the dead pixels should be less or
equal to 6 pixels.
- Adjacent pixel with each other is unacceptable.
- Ref. below table
Note: The defect criteria follows TI specification.
P3150/P3250/P3150 Refresh/P3250 Refresh
Full black
Full white
Confidential
4-6