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5.3 Gray Level for Composite Video & S-Video
Equipment:
Pattern generator (VG-828)
-
Lux meter ( CL-100)
-
OSD Default value:
Item
USER>Picture>
Brightness
Contrast
Color
Tint
Sharpness
Filter
Color Temp
Procedure:
(a) Gray Level
1. Connect power, Composite video or S-Video, into projector.
2. Change Timing and pattern of pattern generator :
Timing : NTSC(H:15.73 KHz,V:29.96 Hz)
pattern : gray 32( or gray16 only for overscan)
3. Light on projector
4. Set user OSD values to default.
5. Enter factory mode.
6. Set Factory values to default.
7. Adjust the Brightness and Contrast to let the black level to just distinguish, and the light
output of white level to just max.
8. Check the 32 levels of gray. All steps must appear,
(b). Saturation Level:
9. Change Timing and pattern of pattern generator :
Timing : NTSC(H:15.73 KHz,V:29.96 Hz)
pattern : 100% blue
10. Adjust saturation and use lux meter to measure to let the light output just max.
11. Select "Save Setting" at "Factory OSD>Factory>".
6. Additional Patterns used for color final check
(a). Pattern 1: 0 ~ 14% gray, 2% change per step, (For DVI-A, YPBPR inputs)
Criteria: All gray bars should have the same color. Brightness change should be linear.
(b) Pattern 2: 16-gray (0 ~ 100%), For all input sources
Criteria: All gray bars should have the same color. Brightness change should be linear.
All manuals and user guides at all-guides.com
Value
30
Factory>SD
17
Brightness
23
Contrast
15
Saturation
3
Hue
3
2
Item
Value
158
75
91
0
38
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