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3. PC Alignment Procedure
Equipment:
- Pattern generator (Chroma-2337)
OSD Default value:
Item
Value
Cal R Offset
512
Cal G Offset
512
Cal B Offset
512
Cal R Gain
637
Cal G Gain
637
Cal B Gain
637
YPbPr R Offset
512
YPbPr B Offset
512
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 “Calibration 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.
11. Calibrate Dsub_1 only .( Dsub_2 follows Dsub_1 )
White-black pattern