Sharp Aquos LC-60LE600U, Service Manual

Page: 30 / 68

LC-60/70LE600U
5 – 6
8. White balance adjustment
8.1. White balance adjustment
Adjustment point Adjustment conditions Adjustment procedure
1 Setting 1) Set the unit to the following conditions.
AV MODE: [DYNAMIC]
Backlight: +16
Active Contrast: OFF
Aging Time: Min. 60 minutes
2) Connect the unit with the white balance adjustment jig.
2 Automatic adjustment
execution [Command]
Process mode
KRSW0001
KKT10037
Setting
KY0F0000
OSDS0001
SBSL0016
Multi-point adjustment mode
FACT0001
MSET0000
Point 2
WBI20200
MG2G****
MG2B****
MG2R****
Point 1
WBI10040
MG1G****
MG1B****
MG1R****
Point 2
(Doubling)
WCI20200
MH2G****
MH2B****
MH2R****
Point 1
(Doubling)
WCI10040
MH1G****
MH1B****
MH1R****
MAX value
MGMR****
MGMG****
MGMB****
MAX value
(Doubling)
MHMR****
MHMG****
MHMB****
Writing
MSET0003
FACT0000
[Adjustment procedure]
1) Send the “monitor adjustment process” code using the remote control.
2) Set the point 2 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 1 to the specified gradation, set the G correction value (640 x G
value of point 2/3200) and adjust the RB so that it becomes the standard value.
4) Calculate the MAX RGB values. (For entry, see 11 below.)
5) Calculate the tilt between the MAX point and the point 2.
6) Calculate the correction value for doubling the point 2.
7) Calculate the RGB values after doubling the point 2.
8) Calculate the tilt between the point 2 and the point 1.
9) Calculate the correction value for doubling the point 1.
10)Calculate the RGB values after doubling the point 1.
11)Enter the MAX RGB values.
12)Enter the RGB values after doubling the MAX values.
13)Write the adjustment values using the MSET0003 command and turn off the AC
power.
G
max
= G
max_d
= 4080 G
high
/ 3200
R
max
= R
max_d
= G
max
+ R
high
- G
high
B
max
= B
max_d
= G
max
+ B
high
- G
high
(4080 when R
max
, G
max
and B
max
exceed 4080 by calculating them)
Ra
high
= (R
max
- R
high
) / (4080 - 3200)
Ga
high
= (G
max
- G
high
) / (4080 - 3200)
Ba
high
= (B
max
- B
high
) / (4080 - 3200)
R
high
= Ra
high
(3510 - 3200)
G
high
= Ga
high
(3510 - 3200)
B
high
= Ba
high
(3510 - 3200)
R
high_d
= R
high
+ R
high
G
high_d
= G
high
+ G
high
B
high_d
= B
high
+ B
high
Ra
low
= (R
high
- R
low
) / (3200 - 640)
Ga
low
= (G
high
- G
low
) / (3200 - 640)
Ba
low
= (B
high
- B
low
) / (3200 - 640)
R
low
= Ra
low
(717 - 640)
G
low
= Ga
low
(717 - 640)
B
low
= Ba
low
(717 - 640)
R
low_d
= R
low
+ R
low
G
low_d
= G
low
+ G
low
B
low_d
= B
low
+ B
low
R
max_d
= R
max
G
max_d
= G
max
B
max_d
= B
max