22LK311 (CHASSIS:LP91J) - LG TV Service Manual (repair manual). Page 13

5.2.2. Adjustment of White Balance (for Manual adjustment)

(1) Color analyzer(CA100+, CA210) should be used in the

calibrated ch by CS-1000

(2) Operate the zero-calibration of the CA100+ or CA-210,

then stick sensor to the module when adjusting.

(3) For manual adjustment, it is also possible by the following

sequence.

1) Select white pattern of heat-run by pressing “POWER

ON” key on remote control for adjustment then operate
heat run longer than 15 minutes. (If not executed this
step, the condition for W/B may be different.)

2) Push “Exit” key.
3) Change to the AV mode by remote control.
4) Input external pattern (85% white pattern)
5) Push the ADJ key -> Enter “0000” (Password)
6) Select “3. W/B ADJUST”
7) Enter the W/B ADJUST Mode
8) Stick the sensor to the center of the screen and select

each items (Red/Green/Blue Gain and Offset) using

D

/

E

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

9) Adjust R/ G/ B Gain using 

F

/

G

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

10) Adjust three modes all (Cool/ Medium/ Warm) : Fix the

one of R/G/B gain and change the others

11) When adjustment is completed, Enter “COPY ALL”.
12) Exit adjustment mode using EXIT key on R/C.

* CASE

First adjust the coordinate far away from the target value(x, y).
1. x, y > target

i) Decrease the R, G. 

2. x, y < target

i) First decrease the B gain, 
ii) Decrease the one of the others.

3. x > target, y < target

i) First decrease B, so make y a little more than the target.
ii) Adjust x value by decreasing the R

4. x < target, y > target

i) First decrease B, so make x a little more than the target.
ii) Adjust x value by decreasing the G

(4) Standard color coordinate and temperature when using the

CA100+ or CA210 equipment

- 22LK310/311(Small size inch’s color coordinate is different

from  others, so use below table)

- To check the Coordinates of White Balance, you have to

measure at the below conditions.

Picture Mode : Select Vivid and change Dynamic Contrast :
Off, Dynamic Colour : Off -> Picture Mode change ->
Vivid(User)
(If you miss the upper condition, the coordinates of W/B can
be lower than the spec.

- 13 -

Coordinate

Mode

x

y

Temp

uv∆

Cool

0.269 ± 0.002  0.273 ± 0.002

13,000 K

0.000

Medium

0.285 ± 0.002

0.293 ± 0.002

9,300 K

0.000

Warm

0.313 ± 0.002

0.329 ± 0.002

6,500 K

0.003

Coordinate 

Mode

x

y

Temp

uv∆

Cool

0.285 ± 0.002

0.293 ± 0.002

9,300 K

0.000

Medium

0.295 ± 0.002

0.305 ± 0.002

8,000 K

0.000

Warm 

0.313 ± 0.002

0.329 ± 0.002

6,500 K

0.003