Acer XD1170D, Service Manual

Page: 59 / 127

51 Chapt er 4
No Step Specification Procedure
7 Light Leak The unit can't
accept the
leakage is
brighter than
Gray 10 pattern
- Test Signal : 800x600@75Hz (PD100)
- Test Pattern : 32 Grays, Gray 10_HP, Gray 30_HP
(From Top to Bottom)
- Please check and see if the light leaks.
-
Follow up TI DMD Chip Spec.
8 Calibration Calibration
Pattern should
be in full screen
mode - Once Main Board is changed, firmware upgrade,
Video Calibration & ADC Calibration should be
done as well.
- Video Calibration
- Test Signal : 720x480@75Hz (PD100)
- Test Pattern : Master
- PC Calibration
- Test Signal : 800x600@75Hz (PD100)
- Test Pattern : White (Top) Black (Bottom)
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 & PC
Calibration for correction in Service Mode.
Choose "Exit" to leave the Service Mode after all.
9 Contrast /
Brightness Gray level should
be
distinguishable
and without color
abnormal - Test Pattern: 64 RGBW scale
10 R, G, B and
White Color
Performance
Each R, G, B
color should be
normal without
color abnormal
issue - Test Pattern: R, G, B and White Color