B. Power error
No power
Power
LED On?
Y
N
DC Power on
by pressing Power Key
On Remote control
Y
N
Normal
operation?
Check Power
On ‘”High”
Check Power cord
was inserted properly
Check
Logo LED
Replace
Power B/D
Measure voltage of each output of Power B/D
N
Y
Normal
voltage?
Replace Main B/D
Y
OK?
Replace Main B/D
N
Y
Normal?
Check ST-BY 3.5V
Replace Power B/D
N
Y
Normal
voltage?
Replace Power B/D
Y
A17
A18
A18
A18
Standard Repair Process
Established
date
Revised date
6/16
Error
symptom
6
. Stand-By: Red or Turn On
. Operating: Turn Off
Close
N
Copyright © 2015 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
