Optoma EW536 Service Manual page 36

2. Light Leak
Procedure
Inspection item
Criteria
3. Bright pixel
Procedure
Inspection item
Criteria
4. Dark pixel
Procedure
Inspection item
- Test equipment: video generator
- Test signal: analog 1280 x 800 @60Hz
- Test pattern: Black pattern
- Check if the light leaks.
* Light leak on reflective edge, eye-catcher, bond wires
and exposed metal.
- Light leak check.
- The pattern cannot accept the color level of the
leakage is brighter than full black pattern.
- Using Black pattern, the light leak is acceptable
when it appears out of the zone C.
- The light leak appears in the zone C within the
frame of any pattern, please use gray 10 pattern to
judge it.
- The pattern cannot accept the color level of
the ineffective leakage is brighter than gray
10 pattern.
- Test equipment: video generator
- Test signal: analog 1280 x 800 @60Hz
- Test pattern: Gray 10 pattern
- Bright pixel check.
- Bright pixel is unacceptable when it appears on zone A
and zone B.
- Ref. Defect specification table
- Test equipment: video generator
- Test signal: analog 1280 x 800 @60Hz
- Test pattern: White pattern
- Dark pixels check.
EW536/HD66/DW318
Full black
Gray 10
Full White
Confidential
4-5