Sharp LC-32LE280X, Service Manual

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2. MAIN SOFTWARE PACKAGE
Model Software Package
LC-40LE280X
LC-40LE280X-WH
cheetah_asia_pack02_vxxx.img
Main Software Filename : XXX is Software version
If any changes of software, will be informed by MARUHEN.
3. HDCP Key writing
HDCP key disc name & no : HDCPM xxxx ( Key is from Sharp Japan IT department )
4. SIGNAL ADJUSTMENT
A. PICTURE ADJUSTMENT
Adjustment Mode
NO. ITEM CONDITION PROCEDURE
1
Adjustment Mode
(K-Mode)
Press the test key at the test remote control
B. WHITE BALANCE ADJUSTMENT
a) New White Balance Adjustment
NO.
ITEM CONDITION PROCEDURE
i Setting Backlight : MAX
AV Mode : DYNAMIC
Active Backlight : OFF
SUPER ECO: OFF
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
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)
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
Example for Adjustment Method
(be careful of INT setting)
1