LG 55LM860V Service Manual page 78

Standard Repair Process
Error
LCD TV
symptom
No Video/
No audio
Copyright © 2012 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
A. Video error
No video/ No audio
☞A4
Check various
Normal
voltages of Power
voltage?
Board ( 3.5V,12V,20V
or 24V...)
Replace Power
Board and repair
parts
Established
Revised date
Check and
Y
replace
MAIN B/D
N
2
2012.01.16
date
End
2/15
LGE Internal Use Only