32LH70YD (CHASSIS:LJ91D) - LG TV Service Manual (repair manual). Page 16

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White Balance Adjustment (Manual adjustment)

• Test Equipment: CA-210

- Using LCD color temperature, Color Analyzer (CA-

210) must use CH 9, which Matrix compensated
(White, Red, Green, Blue compensation) with CS-
2100. See the Coordination bellowed one. 

• Manual adjustment sequence is like bellowed one.

- Turn to "Ez-Adjust" mode with press ADJ button of

service remocon.

- Select "10.Test Pattern" with CH+/- button and press

enter. Then set will go on Heat-run mode. Over 30
minutes set let on Heat-run mode.

- Let CA-210 to zero calibration and must has gap more

10cm from center of LCD module when adjustment. 

- Press "ADJ" button of service remocon and select

"7.White-Balance" in "Ez-Adjust" then press "

▶

"

button of navigation key.

(When press "

▶

" button then set will go to full white

mode)

- Adjust at three mode (Cool, Medium, Warm)
- If "cool" mode 

Let B-Gain to 192 and R, G, B-Cut to 64 and then
control R, G gain adjustment High Light adjustment.

- If "Medium" and "Warm" mode 

Let R-Gain to 192 and R, G, B-Cut to 64 and then
control G, B gain adjustment High Light adjustment.

- All of the three mode

Let R-Gain to 192 and R, G, B-Cut to 64 and then
control G, B gain adjustment High Light adjustment.

- With volume button (+/-) you can adjust.
- After all adjustment finished, with Enter (

■

key) turn

to Ez-Adjust mode. Then with ADJ button, exit from
adjustment mode

Attachment: White Balance adjustment coordination and color
temperature.

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Using CS-1000 Equipment. 

- COOL : T=11000K, 

△

uv=0.000, x=0.276 y=0.283 

- MEDIUM  : T=9300K, 

△

uv=0.000, x=0.285 y=0.293 

- WARM  : T=6500K, 

△

uv=0.000, x=0.313 y=0.329 

1) Turn on TV
2) Press EYE Key of Adj R/C
3) Cover the Eye Q II sensor on the front of the using your

hand and wait for 6 seconds

4) Confirm that R/G/B va;ie os ;pwer tjam 10 of the ‘Raw

Data (Sensor data, Back light)”. If after 6 seconds, R/G/B
value is not lower than 10, re[;ace EYE Q II sensor. 

5) Remove your hand from the EYE Q II sensor and wait for

6 sencond

6) Confirm that “OK” pop up.

If change is not seen, replace EYE Q II sensor

Press IN-Start button of service remocon then set the “4.Baud
rate” to 15200, Then check RS-232C control and

• Models: All models which use LA75A Chassis (See the first

page.)   

• Press “In-Start” button of Service Remocon, then enter the

“Option” Menu with “PIP CH-“ Button  

•  Select one of these three (USA, CANADA, MEXICO)

defends on its market using “Vol. +/-“button. 

• Check the connection between set and power cord 

•  Fully connected (Between set and power cord) set enter

the Auto-test sequence.  

•  Connect D-Jack AV jack test equipment. 
•  Turn on Auto-controller(GWS103-4) 
•  Start Auto GND test.
•  If its result is NG, then notice with buzzer. 
•  If its result is OK, then automatically it turns to ESD Test. 
•  Operate ESD test 
•  If its result is NG, then notice with buzzer. 
•  If its result is OK, then process next steps. Notice it with

Good lamp and STOPER Down.

•  Test Voltage  

- GND: 1.5KV/min at 100mA 
- Signal: 3KV/min at 100mA 

•  Test time: just 1 second. 
• Test point

- GND test: Test between Power cord GND and Signal

cable metal GND. 

- ESD test: Test between Power cord GND and Live and

neutral. 

•  Leakage current: Set to 0.5mA(rms)