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Standard Repair Process
Error
LED TV
symptom
☞A4
Check various voltage
No Video/
of mian board and power
No audio
board(+12V, 5V, +24V, 3.3V)
Copyright © 2014 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
A. Video error
No video/ No audio
Check and
Y
Normal
replace
Voltage
MAIN B/D
N
Replace Power
Board and repair
parts
Established
2014.07.07
date
Revised date
End
2/14
LGE Internal Use Only
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