Acer PD726W Service Manual page 53

No Step
Light Leak
7
8 Calibration
9 Contrast/
Brightness
47
Specification
The unit can't ac-
cept the leakage
is brighter than
Gray 10 pattern
Calibration Pat-
tern should be in
full screen mode
Gray level should
be distinguishable
and without color
abnormal.
Procedure
- Test Signal : 1280x768@60Hz
- Test Pattern : Gray 10 Pattern
- Please check and see if the light
leaks *Note
- The unit cannot accept the
leakage is brighter than Gray 10
Pattern
Note:
Light leak on reflective edge, eye-
catcher, bond wires and exposed
metal.
- Once Main Board is changed,
firmware upgrade, Video
Calibration & ADC Calibration
should be done as well.
- Video Calibration
- Test Signal : 1280x768@60Hz
- Test Pattern : Gray 10 Pattern )
- ADC Calibration
(PC Calibration)
- Test Signal : 1280x768@60Hz
- Test Pattern : Calibration Pattern
Note:
1. Calibration Pattern should be
in Full Screen Mode.
2. Please refer to 4-6. Guide to
Entering Service Mode and
Facotry Reset for entering
Service Mode.
3. Choose and access Video
Calibration & ADC Calibration
for correction in Service
Mode. Choose "Exit" to leave
the Service Mode after all.
- Test Pattern : 64 RGBW scale
Photo
Chapter 4