Read LG 70LA8610-TA / 70LA860Y-TA (CHASSIS:LB34D) Service Manual online
No audio
Screen normal
Check user
menu >
Speaker off
Off
N
Y
Cancel OFF
Check audio B+ 24V
of Power Board
Normal
voltage
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
8/16
LCD TV
Error
symptom
Standard Repair Process
8
2013.03.05
Click on the first or last page to see other 70LA8610-TA / 70LA860Y-TA (CHASSIS:LB34D) service manuals if exist.