37LC50CB (CHASSIS:LA64A) - LG TV Service Manual (repair manual). Page 16

7.1.3 Data of EDID for 32/37/42LC5DC-UA,32LX5DC-UA
7.1.3.1 DDC data of Analog-RGB

7.1.3.2 DDC data of Digital-HDMI1

7.1.3.3 DDC data of Digital-HDMI2

8.1 Required Equipment

- Remote controller for adjustment 
- Color Analyzer (CA-210 or same product )
- Auto W/B adjustment instrument(only for Auto adjustment)
- Use inner(SELF) Pattern 

8.2 Adjustment of White Balance (For Manual adjustment)

Set TV input to RF.
Operate the zero-calibration of the CA-210, Ch.9. 
Then stick sensor to LCD module surface when you adjust. 
For manual adjustment, it is also possible by the following
sequence.
1) Select white pattern of heat-run mode by pressing power

on key on remote control for adjustment then operate
heat run more than 15 minutes. 

2) Enter the White Balance adjustment mode by pressing

the INSTART key twice (White Balance) on R/C.

3) Stick sensor to center of the screen and select each

items using  

D

/

E

(CH +/-) key on R/C.

4) Adjust G Gain / B Gain using  

F

/

G

(VOL +/-) key on R/C.

5) Adjust it until color coordination becomes as below. 

- By controlling G, B GAIN, adjust X, Y target value. 
- R Gain fixed at cool, normal, warm mode.
- But, Control the R GAIN, unless it has correct value

(Initially, R/G/B gain and R/G/B offset values are fixed as below.)
Red Gain: 80h

Green Gain:  80h Blue Gain: 80h

Red Offset: 80h

Green Offset: 80h Blue Offset: 80h 

*Target value

X

Y

Temp (∆uv)

Cool

0.276 ± 0.002        0.283 ± 0.002

11000k (0.000)

Normal

0.285 ± 0.002        0.293 ± 0.002

9300k (0.000)

Warm

0.313 ± 0.002        0.329 ± 0.002

6500k (0.003)

6) When adjustment is completed, Exit adjustment mode

using EXIT key on R/C.

- 16 -

Before adjustment of white balance, should be executed the
'color balance adjustment'