37LV370S-ZB, 37LV375G-ZC, 37LV375S-ZC, 37LV375W-ZC (CHASSIS:LD12B) - LG TV Service Manual (repair manual). Page 55

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Entry method
1. Press the ADJ button on the remote controller for adjustment.
2. Enter into White Balance of item 9. 
3. After recording the R, G, B (GAIN, Cut) value of Color Temp 
(Cool/Medium/Warm), re-enter the value after replacing the MAIN BOARD.
Established 
date 
Electronics 6-3
Standard Repair Process Detail Technical Manual
Revised 
date 
2008. 2 . 1
LCD TV
Error 
symptom
Check White Balance value
Content
A. Video error_No video/Normal audio 
4/33 - 1/13
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