Sharp 4T-C60AH1X, Service Manual

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4T-C6070AH1X
5 – 2
LCD TV ADJUSTMENT ITEM
1. MICON SOFTWARE DATA INPUT
1) Main MICON/Monitor MICON Software Data Input (Main PWB : )
ITEM CONDITION PROCEDURE
1 Main MICON
Data Input
(Main PWB)
Checker
adjustment
File version
confirmation
1. Data input by Gang Programmer
IC:
RH-IXE112WJQZQ
Input Data: .img file
(filename will be decided by Software Development Dept.)
2. At checker, confirm the version and perform operation
inspection.
2. WHITE BALANCE ADJUSTMENT/ GAMMA ADJUSTMENT
a)
1) White Balance Adjustment / Gamma Adjustment
NO.
ITEM CONDITION PROCEDURE
i
Setting
AV Mode : DYNAMIC
Backlight : MAX
Set the luminance
meter on the centre
of the screen
For the details of white balance adjustment procedure, please refer to white balance
adjustment spec for Kameyama model.
1. Confirm the set condition.
2. Connect the white balance jig.
3. Through RS-232C command, adjustment mode screen is displayed.
ii Auto
Adjustment
[command]
Adjustment
Mode
KRSW0001
KKT10037
Setting
KYOF0001
OSDS0001
SBSL0016
Multi point
adj. Mode
MSET0000
WBI20255
Point 2
WBI20 229
MG2G****
MG2B****
MG2R****
Initial setting
Panel Contrast
R/G/B_MAX
R/G/B_HIGH
R/G/B_LOW
C
nt
= 5000 :1
WB
MAX
= 4080
WB
H
= 3664 /4080
WB
L
= 640 /4080
(1) Measurement MAX Brightness
(2) Set MIN Brightness
(3) Measurement HIGH Brightness
(4) Measurement LOW Brightness
(5) Calculation H
γ
(6) Calculation L γ
(7) Calculation HIGH luminance (
γ=2.2)
(8) Calculation Initial setting of
R/G/B_HIGH
(9) Set Initial setting of
R/G/B_HIGH
(10) Original WB adjustment is performed (HIGH)
Set the specified gradation for point 2, fix the
most faint colour to get reference value,
adjust others 2 colours to minus adjustment
for reference value of point 2.
(11) Measurement HIGH Brightness
(Set) R_HIGH= G_HIGH
G_HIGH= G_HIGH
B_HIGH= G_HIGH
L
max =305.7 cd/m²
L
min
= L
max
/C
nt
= 0.102
L
XH
=235.1 cd/m²
L
XL
=2.06 cd/m²
H
γ
=LOG((L
XH
-L
min
)/(L
max
-L
min
))/LOG(WB
H
/WB
MAX
)= 2.44
L γ =LOG((L
XL
-L
min
) /(L
max
-L
min
))/LOG(WB
L
/WB
MAX
)=2.73
L
H22
=(L
max
-L
min
) x (WB
H
/WB
MAX
)^2.2+L
min
=241.31
WB
HX
=WB
MAX
X ((L
H22
-L min )/(L max -L min ))^(1/H
γ
)=3703
R_HIGH=WB
HX
ʼ=3703
G_HIGH=WB
HX
ʼ=3703
B_HIGH=WB
HX
ʼ=3703
R_HIGH=3702
G_HIGH=3641
B_HIGH=3703
R_HIGH=3641
G_HIGH=3641
L
XHG
=
231.3
B_HIGH=3641
L
XMX
=L
XHG
/((W
B
H
/WB
MAX
)^2.2)=293.04
Example for adjustment method
(be careful of INT setting)
RESULT