Sharp PRO-60X5FD Service Manual page 39

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 point
1 Setting
2 Automatic adjust- [Command]
ment execution Process mode
KRSW0001
KKT10037
Setting
KYOF0000
OSDS0001
SBSL0016
Multi-point adjustment mode
MSET0012
GC6P0011
White brightness measurement
GCP70255
Point 6
LEV60243
GCC6****
1G6G****
1G6B****
1G6R****
1G6Y****
MG6G****
MG6B****
MG6R****
MG6Y****
Point 5
LEV50229
GCC5****
1G5G****
1G5B****
1G5R****
1G5Y****
MG5G****
MG5B****
MG5R****
MG5Y****
Point 4
LEV40192
GCC4****
1G4G***
1G4B****
1G4R****
1G4Y****
MG4G****
MG4B****
MG4R****
MG4Y****
Point 3
LEV30150
GCC3****
1G3G****
1G3B***
1G3R****
Adjustment conditions Adjustment procedure
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) Display white in GCP70255, and measure the brightness after a lapse of the wait
time of 100 ms; then send the decoupled value.
3) Set the point 6 to the specified gradation, and measure its brightness; then send
the decoupled value.
4) Specify the strongest color as the fixed color, and adjust the RGB by the 1G6*****
command 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.
5) Set the adjustment value of the point 6 by MG6*****.
6) Set the point 5 to the specified gradation, and measure its brightness; then send
the decoupled value.
7) For the point 5, set the G correction value (916 x G value of point 6/972) (frac-
tions rounded off) and the Ye correction value (916 x Ye value of point 6/972)
(fractions rounded off), and adjust the RB so that it becomes the standard value.
8) Set the point 4 to the specified gradation, and measure its brightness; then send
the decoupled value.
9) For the point 4, set the G correction value (768 x G value of point 6/972) (frac-
tions rounded off) and the Ye correction value (768 x Ye value of point 6/972)
(fractions rounded off), and adjust the RB so that it becomes the standard value.
10)Set the point 3 to the specified gradation, and measure its brightness; then send
the decoupled value.
11)For the point 3, set the G correction value (600 x G value of point 6/972) (frac-
tions rounded off) and the Ye correction value (600 x Ye value of point 6/972)
(fractions rounded off), and adjust the RB so that it becomes the standard value.
12)Set the point 2 to the specified gradation, and measure its brightness; then send
the decoupled value.
13)For the point 2, set the G correction value (432 x G value of point 6/972) (frac-
tions rounded off) and the Ye correction value (432 x Ye value of point 6/972)
(fractions rounded off), and adjust the RB so that it becomes the standard value.
14)Set the point 1 to the specified gradation, and measure its brightness; then send
the decoupled value.
15)For the point 1, set the G correction value (192 x G value of point 6/972) (frac-
tions rounded off) and the Ye correction value (192 x Ye value of point 6/972)
(fractions rounded off), and adjust the RB so that it becomes the standard value.
16)Write the adjustment value by the MSET0030 command.
17)Display black in GCP00000, and measure the brightness after a lapse of the wait
time of 100 ms; then send the centupled value.
18)Write the gamma adjustment value by GCST0001.
19)Write the WB adjustment value by MSET0030.
* RGB initial value of point 6: Set gradation 972
* RGB initial value of points 1 to 5: G correction value of each point
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PRO-60/70X5FD