Sharp C6400U Service Manual page 94

LC-52/60/70LE640U/C6400U,LC-80LE633U/844U (1st Edition)
9. White balance adjustment
9.1. White balance adjustment (For details about the adjustment procedure, refer to "Kameyama Model Integrated Monitor
WB Adjustment Specification V1.92".)
Adjustment
Adjustment conditions
point
1 Setting
2 Automatic [Command]
adjustment exe- Process mode
cution KRSW0001
KKT10037
Setting
KY0F0000
0SDS0001
SBSL0016
Multi-point adjustment mode
MREN0000
MSET0001
Point 6
LEV60232
MG6G****
MG6B****
MG6R****
MG6Y****
Point 5
LEV50198
MG5G****
MG5B****
MG5R****
MG5Y****
Point 4
LEV40152
MG4G****
MG4B****
MG4R****
MG4Y****
1) Set the unit to the following conditions.
AV MODE: [DYNAMIC]
Backlight: +16
Active Backlight: OFF
Aging Time: Min. 60 minutes
2) Connect the unit with the white balance adjustment jig.
Note 1: The screen adjustment point is located in x=1034pt and y=539pt.
Note 2: For the WB adjustment, perform teaching and adjustment after turning off the
unevenness cancellation by the RS232C command.
[Adjustment procedure]
1) Send the "adjustment process" code using the remote control.
2) Set the point 6 to the specified gradation, specify the strongest color as the fixed
color, and adjust the RGB so that it becomes the standard value through negative
adjustment.
After adjustment, compare the R and G values; based on that result, calculate the Ye
value in the following conditions.
R > G: Ye = G x 1.05
R ≤ G: Ye = R x 1.05
* If the Ye value exceeds the initial value (input gradation x 4), round off it to that
value or less.
3) Set the point 5 to the specified gradation, and set the G correction value (792 x G
value of point 6/928) (fractions rounded off) and the Ye correction value (792 x Ye
value of point 6/928) (fractions rounded off); then adjust RB so that it becomes the
standard value.
4) Set the point 4 to the specified gradation, and set the G correction value (608 x G
value of point 6/928) (fractions rounded off) and the Ye correction value (608 x Ye
value of point 6/928) (fractions rounded off); then adjust RB so that it becomes the
standard value.
5) Set the point 3 to the specified gradation, and set the G correction value (348 x G
value of point 6/928) (fractions rounded off) and the Ye correction value (348 x Ye
value of point 6/928) (fractions rounded off); then adjust RB so that it becomes the
standard value.
6) Set the point 2 to the specified gradation, and set the G correction value (264 x G
value of point 6/928) (fractions rounded off) and the Ye correction value (264 x Ye
value of point 6/928) (fractions rounded off); then adjust RB so that it becomes the
standard value.
7) Set the point 1 to the specified gradation, and set the G correction value (180 x G
value of point 6/928) (fractions rounded off) and the Ye correction value (180 x Ye
value of point 6/928) (fractions rounded off); then adjust RB so that it becomes the
standard value.
8) Write the adjustment value by the MSET0003 command and turn off the AC power.
* RGB initial value of point 6: Set gradation 928
* RGB initial value of points 1 to 5: G correction value of each point
(At each point, make adjustment so that the remainder of the RGB adjustment value/4 is
equal.)
[Adjustment value]
* According to the "Standard settings" submitted by the Technical Department
[LC80LE844U] teaching set
Teaching must be made with the unevenness cancellation off.
(Unevenness cancellation OFF command: MREN0000)
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Adjustment procedure