LG 42LA86 Series Service Manual page 108

Standard Repair Process Detail Technical Manual
Error
Established
A. Video error_No video/Normal audio
2012. 12 .06
symptom
date
LCD TV
Revised
Content A4
Check White Balance value
date
<ALL MODELS>
Entry method
1. Press the ADJ button on the remote controller for adjustment.
2. Enter into White Balance of item 10.
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.