Acer S5201M Series Service Manual page 86

3. 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 "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
Value
127
127
127
127
127
127
127
127
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