Optoma EP721 Family Service Manual page 35

5. Dead Pixel (Bright pixel)
Procedure
Inspection item
Criteria
6. Dead Pixel (Dark pixel)
Procedure
Inspection item
Criteria
than 4 pixels on gray 30 pattern
- Ref. Defect Specification table
Note: The defect criteria follows TI specification
- Test equipment: video generator
- Test signal: analog 800 x 600@60Hz (EP721/723
Family) Family) )
1024 x 768@60Hz (EP727/728 Family)
1280 x 800@60Hz (EW1610 Family)
- Test Pattern: Full black
- Bright pixel check
Note: Frame dimension under operative zone1 inch
- Bright pixel is unacceptable except that 1 pixels is
allowed on frame edge.
- Ref. Defect Specification table Defect Specification table
Note: The defect criteria follows TI specification
- Test equipment: video generator
- Test signal: analog 800 x 600@60Hz(EP721/723
Family) Family) )
1024 x 768@60Hz(EP727/728 Family)
1280 x 800@60Hz(EW1610 Family
- Test Pattern: Full white
- Dead pixel check
- White pattern (IRE=100)
- Adjacent dark pixel
- The number of the dead pixels should be less or
equal to 3 pixels
- Adjacent pixel with each other is unacceptable
- Ref. Defect Specification table Defect Specification table
Note: The defect criteria follows TI specification
EP721/727/723/728 Family / EW1610 Family
Family) )
Family)
pixels is is
Family) )
Family
Confidential
Full black
Full white
4-6