Sharp LC-32DH77E Service Manual page 23

10. White Balance Adjustment
Adjustment point
1 Setting
2 Automatic adjustment
execution
11. Confirmation item
1. HDMI-CEC inspection
Check that the HDMI-CEC circuit is operating.
Adjustment conditions
Light control: MAX (+16)
(Place the luminance meter in
the center of the screen.)
[Command]
Process mode
KRSW0001
KKT10037
Setting
KY0F0000
0SDS0001
SBSL0016
Multi-point adjustment mode
MSET0001
Adjustment value initialization
MSET0004
Point 6
LEV60232
MG6G****
MG6B****
MG6R****
Point 5
LEV50200
MG5G****
MG5B****
MG5R****
Point 4
LEV40136
MG4G****
MG4B****
MG4R****
Point 3
LEV30114
MG3G****
MG3B****
MG3R****
Point 2
LEV20078
MG2G****
MG2B****
MG2R****
Point 1
LEV10048
MG1G****
MG1B****
MG1R****
Writing
MSET0003
Adjustment procedure
1) Confirm the setting conditions.
2) Connect the white balance adjustment jig.
3) Display the adjustment screen by the RS-232C command.
[Adjustment procedure]
1) Transmit the "monitor 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 (3200 x G
value of point 6/3712) (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 (2176 x G
value of point 6/3712) (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 (1824 x G
value of point 6/3712) (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 (1248 x G
value of point 6/3712) (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 (768 x G
value of point 6/3712) (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 3712
* RGB initial value of points 1 to 5: G correction value of each point
(At each point, adjustment is made so that the remainder of the RGB adjust-
ment value/4 is equal.)
[Adjusted value]
* According to the "Standard settings" submitted by the Technical Department.
[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 5 800
y = 0.277
x = 0.272
Point 4 544
y = 0.277
x = 0.272
Point 3 456
y = 0.277
x = 0.272
Point 2 312
y = 0.277
x = 0.272
Point 1 192
y = 0.277
Remarks Setting conditions when performing inspection
AV MODE: [DYNAMIC]
Monochro: ON
Aging Time: Min. 60 minutes
3 – 15
LC-32/42/46DH77E/RU/S
Adjustment Inspection
spec spec
±0.001 ±0.002
±0.001 ±0.002
±0.0015
±0.003
±0.0015 ±0.003
±0.003 ±0.006
±0.0035 ±0.007