Service manual

32
ViewSonic Corporation Confidential - Do Not Copy PJ513D-1
Procedure:
Gray Level:
1. Connect power, D-sub, into projector.
2. Change Timing and pattern of pattern generator:
3. Timing: 800*600@60
4. Pattern: As Figure1 {A near white color (240,240,240) and a near black color(16,16,16),
the area of white is 101/200, black is 99/200}
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.
Figure1