26LD310 (CHASSIS:LP92A) - LG TV Service Manual (repair manual). Page 10

- 10 -

(1) Method

1) Push In-star key on Adjust remote control.
2) SW Version check

Check “Main : Vx.xx” - LD310

(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 Adjust Remote control.)

Refer to Job Expression of each main chassis ass’y
(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

- 22Set command delay time : 50ms
- 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(F3 00 00) 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)

(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) 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, Enter “COPY ALL”.
10) Exit adjustment mode using EXIT key on R/C.