LG 75UM7570AUE Service Manual page 46

Standard Repair Process Detail Technical Manual
symptom
Content
<ALL MODELS>
Entry method
1. Press the ADJ button on the remote control for adjustment.
2. Enter into White Balance.
3. After recording the R, G, B (GAIN, Cut) value of Color Temp
Error
error_No
A. Video
Check White Balance value
(Cool/Medium/Warm), re-enter the value after replacing the MAIN BOARD.
Established
video/Normal audio
A2
date
Revised
date
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A2