Factory Settings - Sharp LC-20S4U-S Service Manual And Parts Listparts List

6-3. White balance adjustment
1) Adjustment procedure
Adjustment process menu page 3: RGB CUTOFF2, RGB-GAIN Feed the 40% white signal. Move the R-
CUTOFF2 and B-CUTOFF2 settings within ±30 to adjust the white balance. Next feed the 80% white signal.
Reduce the GAIN settings of two stronger of the R, G and B colors by 30 to adjust the white balance.
Taking these steps alternately, finely adjust the white balance.
Reference: White balance process adjustment values
(1) Test signal adjustment
White 80% x
y
White 40% x
y
[Adjusting with the bus]
Cut-off (RGB CUTOFF2) Fix the G setting at 0. Vary the R and B settings.
Gain (RGB GAIN): Reduce the settings of the two stronger colors.
(The values are based on the Minolta CA-210.)

7. Factory settings

7-1. Making factory settings
1) Hold down the "INPUT" and "VOL (–)" keys at once, and turn on the power switch.
"K" appears at the top left onscreen to indicate that the inspection process mode is on.
2) Hold down the "CH (ù)" and "VOL (+)" keys. A few seconds later, "SETTING COMPLETE" appears at the
center
of the screen. Now the factory settings are complete.
U
SETTING COMPLETE
Adjustment spec.
0.276 ±0.004
0.280 ±0.004
0.263 ±0.002
0.262 ±0.002
15
LC-20S4U-S
Adjustable range ±30.
Adjusted down to -30.