LG 42LB650T Service Manual

B. Power error
No power
Standard Repair Process
Established
date
Revised date
6/13
LCD TV
Error
symptom
2013. 11 .30
Power LED
On?
Y
DC Power on
b
y
p
ressin
g
Power Ke
y
N
Normal
operation?
Check Power
On ‘”High”
Check
Power LED
Replace
Power
Y
OK?
☞A17
On?
N
yp g y
On Remote control
Y
operation?
On
‘”High”
Check Power cord
was inserted properly
Power
LED
Power
B/D
Replace Main B/D
☞
A4
. Stand-By: Red
. Operating: white
Measure voltage of each output of Power B/D
N
Y
Normal?
☞
A4
N
Y
Normal
voltage?
Replace Main B/D
Y
Check ST-BY 3.5V
Replace Power B/D
Y
Normal
voltage?
Y
☞
A
18
※
Close
Replace
Power
B/D
N
Replace Power
B/D
B/D
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LG 42LB650T Specifications

General

Brand	LG
Model	42LB650T
Category	LED TV
Language	English