42LB1DRA (CHASSIS:LA61A) - LG TV Service Manual (repair manual). Page 14

3) In case that White balance is COOL.

- Fix B Gain(192)/ R-Cut(64)/ G-Cut(64)/ B-Cut(64) and

adjust the High Light by R Gain / G Gain.

In case that White balance is Medium.
- Fix R Gain(192)/ R-Cut(64)/ G-Cut(64)/ B-Cut(64)  and

adjust the High Light by G Gain / B Gain.

In case  that White balance is Warm
- Fix R Gain(192)/ R-Cut(64)/ G-Cut(64)/ B-Cut(64)  and

adjust the High Light by G Gain / B Gain.

4) Adjust using Volume +/- key.
5) After adjustment is complete, exit the adjustment mode

by pressing the ADJ key.

* Color coordinate and temperature of White Balance

- Brightness : High Level : 216 gray

1) Cool : 12000 ºK, ∆uv=0.000, luminance Min : 300 cd
2) Medium : 9300 ºK, ∆uv=0.000, luminance Min : 300 cd
3) Warm : 6500 ºK, ∆uv=0.000, luminance Min : 250 cd

Adjustment for reduce color difference Main/Sub screen of RF
or Video signal.

(1) Connection the Video Signal Generator(Master) to the TV

AV Input terminal.
After input pattern(Model: 201(NTSC-M), Pattern: 33(100%
color Bar), pressing the ‘Rev’ button and appear as below
figure.

(2) After receive signal, confirm the signal receiving.

And Enter the ‘EZ-ADJUST’ by pressing the ADJ Key on
the Service R/C.
Select ‘5. Video(UPD)-Set’ and enter the adjustment mode
by pressing the right key (G).

(3) When enter the adjustment mode, displayed the TV 2CH

SPLIT Screen automatic at picture and appear as below
figure.

(4) When the automatic adjustment is over, 'RF Configuration

Success’ is displayed. If the adjustment has errors, 'Video
Configuration Error’ is displayed.

(5) After the RF signal automatic adjustment is over, convert

the Video Mode as below figure and adjust with automatic
movement the Video Mode. 
When the automatic adjustment is over, 'Video
Configuration Success’ is displayed. If the adjustment has
errors, 'Video Configuration Error’ is displayed.

- 14 -

Color temperature

Test Equipment

Color Coordination

x

y

COOL

CA-210

0.272±0.002

0.276±0.002

CS-1000

0.272±0.002

0.278±0.002

MEDIUM

CA-210

0.285±0.002

0.290±0.002

CS-1000

0.285±0.002

0.293±0.002

WARM

CA-210

0.312±0.002

0.319±0.002

CS-1000

0.314±0.002

0.324±0.002