LG OLED77B3 Series - A. Video error_Video error, video lag;stop

Standard Repair Process Detail Technical Manual
TUNER checking part
A5
Checking method:
1. Check the signal strength or check whether the screen is normal when the external device is connected.
2. After measuring each voltage from power supply, finally replace the MAIN BOARD.
Established
date
Revised
date
Error symptom
Content
A. Video error_Video error, video lag/stop
A5
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