Optoma HD25 Service Manual page 23

2. Bright Pixel
Procedure
Inspection item
Criteria
3. Dark Pixel
Procedure
Inspection item
Criteria
4. Bright Blemish
Procedure
Inspection item
Criteria
5. Dark Blemish
Procedure
Inspection item
- Test equipment: video generator.
- Test signal: analog 1920x1080�60Hz
- Test Pattern: gray 10
- Bright pixel check.
- Bright pixel is unacceptable in the active zone; 1
pixel is allowed on the frame.
- Ref. Defect specification table
- Test equipment: video generator.
- Test signal: analog 1920x1080�60Hz
- Test Pattern: full white
- Dead pixels check.
- White pattern (IRE=100)
- The dead pixel is unacceptable on full white pat-
tern in zone A and no more than 2 dark pixels in
zone B
- Adjacent pixels are unacceptable.
- Please refer to Pixel specification table.
- Test equipment: video generator.
- Test signal: analog 1920x1080�60Hz
- Test Pattern: gray 10
- Bright blemish check.
- The bright blemish is unacceptable under gray
10 pattern in zone A and no more than 4
bright blemish in zone B.
- Please refer to Pixel specification table.
- Test equipment: video generator.
- Test signal: analog 1920x1080�60Hz
- Test Pattern: blue 60
- Dark blemish check
Confidential
HD25/HD25LV
Gray 10
Full white
Gray 10
Blue 60
4-3