BenQ MP512 Product Service Manual page 41

4. PC Alignment Procedure
Equipment:
Pattern generator (Chroma-2250)
-
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:
Gray Level:
1. Connect power, D-sub, into projector.
2. Change Timing and pattern of pattern generator:
3. Timing: 1024*768 @60Hz (XGA)
4. Pattern: As Figure1 {A near white color (240,240,240) and a near black color(16,16,16)}
5. Light on projector
6. Set user OSD values to default.
7. Enter factory mode.
8. Set Factory values to default.
9. Press "Calbration RGB" to let the black level to just distinguish, and the light output of
white level to just max.
10. Check the 32 levels of gray. All steps must appear.
Value
127
127
127
127
127
127
127
127
Figure1
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