LG 55EC9300 Repair Manual page 82
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Also See for 55EC9300:
- Owner's manual (64 pages) ,
- Operating manual (53 pages) ,
- Owner's manual (56 pages)
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Standard Repair Process
LCD TV
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Error
symptom
☞A18
Check various
voltages of Power
No Video/
Board ( 3.5V,12V,20V
(
,
No audio
No audio
or 24V...)
A. Video error
No video/ No audio
Check and
Y
Normal
replace
voltage?
,
MAIN B/D
MAIN B/D
N
Replace Power
Board and repair
parts
t
2
Established
2013.01.31
date
Revised date
End
2/16
LGE Internal Use Only
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