BenQ 9H.Y1277.000, Руководство по обслуживанию изделия

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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 “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.
Figure1