LG 75SJ8570 Service Manual page 32
Hide thumbs
Also See for 75SJ8570:
- Owner's manual (70 pages) ,
- Safety and reference (38 pages) ,
- Owner's manual (66 pages)
Table of Contents
Advertisement
Standard Repair Process
Error
symptom
No audio
Screen normal
C. Audio error
No audio/ Normal video
☞A20
Check user
menu >
Off
Speaker off
Y
Cancel OFF
Check
Speaker
disconnection
☞A21+A18
Check audio B+
N
20V of Power
Board
Replace Power Board and repair parts
N
Disconnection
Y
Replace Speaker
8
Established
date
Revised date
Y
Normal
voltage
N
Replace MAIN Board
End
8/16
Advertisement
Table of Contents
