LG 42LB550T Service Manual

OK
Normal
B. Power error
No power
Y
N
DC Power on
by pressing Power Key
On Remote control
Y
N
Check Power
On ‘”High”
Check Power cord
was inserted properly
Check
Power LED
Replace
Power
B/D
Measure voltage of each output of Power B/D
N
Y
Replace Main B/D
Y
Replace Main B/D
N
Y
Check ST-BY 3.5V
Replace Power B/D
N
Replace Power B/D
Y
☞A11
☞A12
☞A13
☞A4
Standard Repair Process
Established
date
Revised date
7/14
LCD TV
Error
symptom
Stand-By : Red
※
2012. 01 .14
End
Power
LED On
Normal
Voltage
Normal
Voltage
Normal
Operati
on
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LG 42LB550T Specifications

General

Brand	LG
Model	42LB550T
Category	LED TV
Language	English