LG OLED65CXAUA - Page 29

No audio
Screen normal
Check user
menu >
Speaker off
Off
N
Y
Cancel OFF
Check audio 20V
of Power Board
Normal
voltage
Y
N
Replace Power Board and repair parts
Check Speaker
disconnection
N
Y
Replace Speaker
Replace MAIN Board
End
C. Audio error
No audio/ Normal video
☞A20
☞A21+A18
Disconnection
Established
date
Revised date
Error
symptom
Standard Repair Process
9
Copyright © 2020 LG Electronics Inc. All rights reserved.
Only for training and service purposes.