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Standard Repair Process
Error symptom
☞A4
Check various
No video /
voltages of Power
No audio
Board ( 13.2V)
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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
date
Revised date
End
2/14
LGE Internal Use Only
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