BenQ MP512 Product Service Manual page 42

5. YUV Alignment Procedure
Equipment:
Pattern generator (VG-828)
-
OSD Default value:
Item
Cal R Offset
Cal G Offset
Cal B Offset
Cal R Gain
Cal G Gain
Cal B Gain
YPbPr R Offset
YPbPr B Offset
Procedure:
1. Connect power, YpbPr cable, into projector.
2. Change Timing and pattern of pattern generator:
Timing: 480i
Pattern: As Figure2
3. Light on projector
4. Adjust user OSD values to default.
5. Enter factory mode.
6. Adjust Factory values to default.
7. Press "Calibration YpbPr" to calibrate the mid level offset.
Value
127
127
127
127
127
127
127
127
Figure2
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