Sharp LC-20S5H Service Manual page 14

LC-20S5H/M/X
6-3. White balance adjustment
1) Adjustment procedure
Adjust the RGB CUTOFF2 setting for white 40% first and then the RGB-GAIN setting for white 80%.
(1) Adjusting the test signal
[Input signal]
[Specification] RGB CUTOFF2 and RGB-GAIN settings on Adjustment Process Page 3.
Adjustment spec.
White 80%
White 40%
[Adjusting with the bus]
Gain (RGB-GAIN): Fix the G setting at "0". Vary the R and B settings accordingly. Adjustment range: ±40
Cut-off (RGB CUTOFF2): Reduce the two strong colours
[7] Factory settings
7-1. Making factory settings
Use the adjustment remote controller for the factory settings.
1) Hold down the remote controller's FACTORY SETTING key.
2) Several seconds later, "SETTING COMPLETE" appears at the center of the screen.
Now the settings are complete.
SETTING COMPLETE
White 80% (191 gradations) for the left of screen, and white 40% (92 gradations) for the right.
Inspection spec.
x 0.264 0.004
y 0.273 0.004
x 0.274 0.002
y 0.279 0.002
(Reading with Minolta CA-210)
0.01 Radius from the center
0.01 Radius from the center
0.01 Radius from the center
0.01 Radius from the center
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Adjustment range: Down to -40