LG 42LB5800-SB - Page 46

A. Video error
Established
dt
Error
2014 1 2
Standard Repair Process
A.
Video
error
No video/ No audio
d
a
t
e
Revised date
2/13
LCD TV
Error
symptom
2014
.
1
.
2
C
☞A4
Normal
voltage?
C
heck various voltages
of Power Board
( 3.5V,12V or 24V…)
No Video/
No audio
Check and
replace
MAIN B/D
Y
N
End
Replace Power
Board and repair
parts
4/ 97
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