LG OLED48C2 Series Service Manual page 52

Standard Repair Process Detail Technical Manual
Error
Established
error_No
A. Video video/Normal audio
symptom
date
Revised
Content Check White Balance value A2
date
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 (Cool/Medium/Warm),
re-enter the value after replacing the MAIN BOARD.
A2