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4. PC Alignment Procedure
Equipment:
- Pattern generator (Chroma-2250)
OSD Default value:
Item Value
Cal R Offset 127
Cal G Offset 127
Cal B Offset 127
Cal R Gain 127
Cal G Gain 127
Cal B Gain 127
YPbPr R Offset
127
YPbPr B Offset
127
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 āCalbration RGBā 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.
Figure1