No Video/ No Audio - LG 70LB650V Service Manual

Standard Repair Process
Established
A. Video error
2014.01.20
Error
date
LCD TV
symptom

No video/ No audio

Revised date 2/13
☞A4
Check various voltages
Check and
Y
of Power Board Normal
No Video/
replace
No audio voltage?
( 3.5V,12V,20V or 24V...)
MAIN B/D
N
End
Replace Power
Board and repair
parts
3
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