22LK230-MA (CHASSIS:LP92R) - LG TV Service Manual (repair manual). Page 9

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(1) Profile : Must be changed the Area option value because

being different of each Country’s Language and
signal Condition.

(2) Equipment : Adjustment remote control.
(3) Adjustment method 

- The input methods are same as other chassis.(Use IN-

START key on the Adjustment remote control.)

Refer to Job Expression of each main chassis assembly
(EBTxxxxxxxx) for Option value.

- Purpose : Adjust the color temperature to reduce the

deviation of the module color temperature.

- Principle : To adjust the white balance without the saturation,

Fix the one of R/G/B gain to 192 (default data)
and decrease the others.

- Adjustment mode : Three modes - Cool / Medium / Warm

(Medium data is automatically calibrated by the Cool data)

- Required Equipment

1) Remote control for adjustment 
2) Color Analyzer : CA100+ or CA-210 or same product

- LCD TV(ch : 9)
(should be used in the calibrated ch by CS-1000)

3) Auto W/B adjustment instrument(only for auto adjustment)

5.2.1. Connecting diagram of equipment for measuring

(For Automatic Adjustment)

* LP92A Support I2C Interface For ADC/DDC Adjustment.

(1) Enter the adjustment mode of DDC

- 22 Set command delay time : 50 ms
- Enter the DDC adjustment mode at the same time heat-

run mode when pushing the power on by power only key.

- Maintain the DDC adjustment mode with same condition

of Heat-run => Maintain after AC off/on in status of Heat-
run pattern display)

(2) Release the DDC adjustment mode

- Release the adjust mode after AC off/on or std-by off/on

in status of finishing the Hear-run mode

- Release the Adjust mode when receiving the aging off

command(WB 00 FF) from adjustment equipment.

- Need to transmit the aging off command to TV set after

finishing the adjustment.

- Check DDC adjust mode release by exit key and release

DDC adjust mode)

(3) Enter the adjust mode of white balance

- Enter the white balance adjustment mode with aging

command (F3, 00, 00)

(4) Release the adjust mode of white balance

- Release the white balance adjustment mode with aging

command(F3, 00, FF)

* Luminance min value is 150cd in the Cool/Medium/Warm

mode(For LCD)

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 two time(entering White Balance

mode) -> Enter “04 13” (Password)

6) 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..

7) Adjust R/ G/ B Gain using 

F

/

G

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

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

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

9) When adjustment is completed, 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

(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 : User 1
Dynamic Contrast : Off
Dynamic Colour : Off
(If you miss the upper condition, the coordinates of W/B
can be lower than the spec.)

Coordinate 

Mode 

x y 

Temp

uv∆

Cool 0.280 

± 0.002

0.283 

± 0.002

9,300 

K

0.000

Medium

0.290 ± 0.002

0.295 ± 0.002

8,000 K

0.000

Warm

0.308 ± 0.002

0.319 ± 0.002

6,500 K

0.000