LG 37LF2500 - Page 28

Normal
voltage?
Check various
voltages of Power
Board ( 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
Established
date
Revised date
2008. 3 .05
2/13
LCD TV
Error
symptom
2