LG 55UF6790 Service Manual page 66
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Also See for 55UF6790:
- Owner's manual (65 pages) ,
- Easy setup manual (37 pages) ,
- Owner's manual (16 pages)
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Standard Repair Process
Error
LCD TV
symptom
No Video/
No audio
Copyright
2015 LG Electronics Inc. All rights reserved.
Only for training and service purposes
A. Video error
No video/ No audio
☞A18
Check various
Normal
voltages of Power
voltage?
Board ( 12V)
Replace Power
Board and repair
parts
Established
Revised date
Check and
Y
replace
MAIN B/D
N
2
2015.5.25
date
End
LGE Internal Use Only
2/16
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