37LF75, 37LF76 (CHASSIS:LD75B) - LG TV Service Manual (repair manual). Page 15

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7.1 Auto white Balance
1) setup is done.
2) Test Equipment
Color Analyzer ( CA210, CA-100+)
PC (for communication through RS-232C)  
RS-232 Host => PC
UART Baud rate => 115200
Download => Cortez
*** When press Power-on key, this point is automatically
setuped. Pattern Generator (MSPG-925F)
7.2 Manual white Balance 
* One of R Gain / G Gain / B Gain should be kept on 80,
and others are controlled lowering from 80 
1) Press "power on°" of the control R/C, set heat run to
white by pressing 
, and heat run over 15 minutes 
(Set : RS-233 Host : PC, Baud Rate : 115200bps,
Download: Cortez).
2) Zero Calibrate CA-100+, and when controlling, stick the
sensor to the center of LCD module surface.
3) Double click In-start key on Controlling R/C and get in
‘white balance’.
4) Set test-pattern on and display inside pattern. Control is
carried out on three color temperature, COOL, MEDIUM,
WARM. (Control is carried out three times,)
5) When the R/G/B GAIN is 80 on OSD, it is the FULL
DYNAMIC Range of the Module. In order to control white
balance without the saturation of FULL DYNAMIC Range
and DATA, one of R Gain / G Gain / B Gain should be
kept on 80, and other two is controlled lowering from 80.
* Color Temperature: Cool, Medium, Warm
1. When R GAIN is set to 80
- Control G GAIN and B GAIN by lowering from 80. 
2. When B GAIN is set to 80
- Control R GAIN and G GAIN by lowering from 80.
3. When G GAIN is set to 80
- Control R GAIN and B GAIN by lowering from
192.
One of R Gain / G Gain / B Gain should be kept on
80, and adjust other two lower than 80.
(When R/G/B GAIN are all 80, it is the FULL
DYNAMIC Range of Module) 
8. Set Information(Serial No & Model
name)
1) Setting up like bottom figure(After setting white balance,
this is set)
(Setting: Press ADJ Key in the Adjust remocon.
Select "System Control 2" by using 
/
(CH+/-) key,
and press 
(OK)
Using Adjust remocon, RS-232 Host & Baud Rate &
Download value change)
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