Sharp LC-40LE820UN Service Manual page 56

LC-40/46/52/60LE820UN
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
MSET0011
Point 6
LEV60229
MG6G****
MG6B****
MG6R****
MG6Y****
Point 5
LEV50173
MG5G****
MG5B****
MG5R****
MG5Y****
Point 4
LEV40133
MG4G****
MG4B****
MG4R****
MG4Y****
Point 3
LEV30116
MG3G****
MG3B****
MG3R****
MG3Y****
Point 2
LEV20074
MG2G****
MG2B****
MG2R****
MG2Y****
Point 1
LEV10045
MG1G****
MG1B****
MG1R****
MG1Y****
Writing
MSET0003
1) Set the unit to the following conditions.
AV MODE: [DYNAMIC]
Backlight: +16
OPC: OFF
Active Contrast: OFF
Power Saving: OFF
Aging Time: Min. 60 minutes
2) Connect the unit with the white balance adjustment jig.
[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. Then compare the R and G values; based on the 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), it is rounded to that
value or less.
3) Set the point 5 to the specified gradation, set the G correction value (692 x G value of
point 6/916) (fractions rounded off) and the Ye correction value (692 x Ye value of
point 6/916) (fractions rounded off), and adjust the RB so that it becomes the stan-
dard value.
4) Set the point 4 to the specified gradation, set the G correction value (532 x G value of
point 6/916) (fractions rounded off) and the Ye correction value (532 x Ye value of
point 6/916) (fractions rounded off), and adjust the RB so that it becomes the stan-
dard value.
5) Set the point 3 to the specified gradation, set the G correction value (464 x G value of
point 6/916) (fractions rounded off) and the Ye correction value (464 x Ye value of
point 6/916) (fractions rounded off), and adjust the RB so that it becomes the stan-
dard value.
6) Set the point 2 to the specified gradation, set the G correction value (296 x G value of
point 6/916) (fractions rounded off) and the Ye correction value (296 x Ye value of
point 6/916) (fractions rounded off), and adjust the RB pattern so that it becomes the
standard value.
7) Set the point 1 to the specified gradation, set the G correction value (180 x G value of
point 6/916) (fractions rounded off) and the Ye correction value (180 x Ye value of
point 6/916) (fractions rounded off), and adjust the RB so that it becomes the stan-
dard value.
8) Write the adjustment value by the MSET0003 command and turn off the AC power.
* RGB initial value of point 6: Set gradation 916
* 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
[LC52LE820UN] LE820 model teaching set
6 – 12
Adjustment procedure