White Balance Adjustment - Sharp LC-52LE640U Service Manual

LC-52/60/70LE640U,C6400U (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
MSET0001
Point 6
LEV60232
MG6G****
MG6B****
MG6R****
Point 5
LEV50202
MG5G****
MG5B****
MG5R****
Point 4
LEV40174
MG4G****
MG4B****
MG4R****
Point 3
LEV30120
MG3G****
MG3B****
MG3R****
Point 2
LEV20059
MG2G****
MG2B****
MG2R****
Point 1
LEV10046
MG1G****
MG1B****
MG1R****
Writing
MSET0003
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.
[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.
3) Set the point 5 to the specified gradation, set the G correction value (808 x G value of
point 6/928) (fractions rounded off) and adjust the RB so that it becomes the standard
value.
4) Set the point 4 to the specified gradation, set the G correction value (696 x G value of
point 6/928) (fractions rounded off) and adjust the RB so that it becomes the standard
value.
5) Set the point 3 to the specified gradation, set the G correction value (480 x G value of
point 6/928) (fractions rounded off) and adjust the RB so that it becomes the standard
value.
6) Set the point 2 to the specified gradation, set the G correction value (236 x G value of
point 6/928) (fractions rounded off) and adjust the RB so that it becomes the standard
value.
7) Set the point 1 to the specified gradation, set the G correction value (184 x G value of
point 6/928) (fractions rounded off) and adjust the 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
[LC60LE632U] teaching set
[Adjustment standard value]
Measuring instrument: [Minolta CA-210] Technical measuring instrument
Level Reference value
X=0.272
Point 6 928
y=0.277
X=0.272
Point 5 808
y=0.277
X=0.272
Point 4 696
y=0.277
X=0.272
Point 3 480
y=0.277
X=0.272
Point 2 236
y=0.277
X=0.272
Point 1 184
y=0.277
Remarks Setting conditions for inspection
AV MODE: [DYNAMIC] (Reset)
Monochro: ON
Active Backlight: OFF
Aging Time: Min. 60 minutes
5 – 13
Adjustment procedure
Adjustment spec
±0.0010
±0.0010
±0.0015
±0.0020
±0.0030
±0.004
Inspection spec
±0.0020
±0.0020
±0.0030
±0.0040
±0.0060
±0.0080