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Normal
voltage?
Check various voltages
of Power Board
( 3.5V,12V,20V or 24V…)
No Video/
No audio
Check and
replace
MAIN B/D
Y
Replace Power
Board and repair
parts
N End
Standard Repair Process
A. Video error
No video/ No audio
A4
Established
date

Revised date 2/14

LCD TV Error
symptom 2013. 01 .09