Sharp Aquos LC32D41U, Service Manual

Page: 21 / 148

LC-32D41U/LC-32M41U/LC-40C32U
5 – 6
6. DVI-I (analog) signal adjustment
2.5. Adjustment of white balance
1. White balance adjustment
Adjustment item Adjustment conditions Adjustment procedure
1 Adjustment DVI-I (analog)
signal: XGA
(1024 x 768) 60Hz
SYNC:
HV separate Feed the XGA (100%) white 1/2 window to DVI-I (analog).
2 Auto adjustment
performance
Bring the cursor on [ DVI ANALOG ADJ] and press [ENTER].
[ DVI ANALOG ADJ OK] appears when finished.
Adjustment item Adjustment conditions Adjustment procedure
1 Setting 1) Apply the following settings to the set.
AV MODE: [DYNAMIC]
Backlight: +16
Aging Time: Min. 60 minutes
2) Connect a white balance adjustment jig and the set.
2 Execution of auto
adjustment [Command]
Process mode
KRSW0001
KKT10037
Setting
KYOF0000
OSDS0001
SBSL0016
Multipoint adjustment mode
MSET0001
Adjustment value initializa-
tion
MSET0004
Point 6
LEV60944
MG6G****
MG6B****
MG6R****
Point 5
LEV50800
MG5G****
MG5B****
MG5R****
[Adjustment method]
1) Send the “monitor adjustment process” code with the R/C.
2) Set the point 6 to the specified gradation. Set the strongest color as the fixed color
and adjust RGB to the standard value by minus adjustment.
3) Set the point 5 to the specified gradation. Set the correction value of G [(Initial value
of point 5) x (G value of point 6) / (Initial value of point 6)] and adjust RB to the stan-
dard value.
4) Set the point 4 to the specified gradation. Set the correction value of G [(Initial value
of point 4) x (G value of point 6) / (Initial value of point 6)] and adjust RB to the stan-
dard value.
5) Set the point 3 to the specified gradation. Set the correction value of G [(Initial value
of point 3) x (G value of point 6) / (Initial value of point 6)] and adjust RB to the stan-
dard value.
6) Set the point 2 to the specified gradation. Set the correction value of G [(Initial value
of point 2) x (G value of point 6) / (Initial value of point 6)] and adjust RB to the stan-
dard value.
7) Set the point 1 to the specified gradation. Set the correction value of G [(Initial value
of point 1) x (G value of point 6) / (Initial value of point 6)] and adjust RB to the stan-
dard value.
8) Write the adjustment values with the MSET0003 command and turn off AC power.
* Initial value of each point: Set gradation level x 4
[Adjustment values]
•
Conform to “Standard set” submitted by Engineering Department.
[LC-32D50U] Teaching set
[Adjustment standard values] Measuring device: [Minolta CA-210] technical measuring
device
Point 4 Level Standard value Adjustment spec Test spec
LEV40576 Point 6 944 X=0.272
±
0.0012
±
0.0020
MG4G**** y=0.277
MG4B**** Point 5 800 X=0.272
±
0.0012
±
0.0020
MG4R**** y=0.277
Point 4 576 X=0.272
±
0.0012
±
0.0020
Point 3 y=0.277
LEV30464 Point 3 464 X=0.272
±
0.0012
±
0.0020
MG3G**** y=0.277
MG3B**** Point 2 264 X=0.272
±
0.0012
±
0.0020
MG3R**** y=0.277
100% White
0% Black
1/4
1/4
1/2
1/4 1/4
1/2