Acer H6500 Service Manual page 66

3. Dark Pixel
Procedure
Inspection item
Criteria
4. Bright Blemish
Procedure
Inspection item
Criteria
5. Dark Blemish
Procedure
Inspection item
Criteria
1 pixel is allowed on the frame.
- Adjacent pixels are unacceptable.
- If there is blemish on full black pattern, please
use gray 10 pattern to judge it.
- Ref. Defect specification table
- Test equipment: video generator
- Test signal: 1�20 x 1080 �60Hz 1�20 x 1080 �60Hz
- Test Pattern: Full white
- Dark pixels check
- The dark pixel should be no more than 6 under
full white pattern.
- Adjacent pixels are unacceptable.
- Ref. Defect specification table
- Test equipment: video generator
- Test signal: 1�20 x 1080 �60Hz 1�20 x 1080 �60Hz
- Test Pattern: Gray 10
- Bright blemish check
- The bright blemish should be no more than 10
under gray 10 pattern.
- Ref. Defect specification table
- Test equipment: video generator
- Test signal: 1�20 x 1080 �60Hz 1�20 x 1080 �60Hz
- Test Pattern: Blue 60
- Dark blemish check
- The dark blemish should be no more than 10
under blue 60 pattern.
- Ref. Defect specification table
H6500
Confidential
Full white
Gray 10
Blue 60
4-5