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B
Play Disc
Check SLED
motor moves to inner
from outer side when
power on?
YES
Laser on?
YES
Read disc?
YES
Reading disc
YES
C
LGE Internal Use Only
NO
Check tact
switch of cover?
Check DC voltage
of SLED+, -?
Check cable connection
between PCB & Traverse.
NO
1. Check OPU protection.
2. Check laser on power circuit.
NO
Check disc type.
3-6
NO
YES
NO
YES
Copyright © 2009 LG Electronics. Inc. All right reserved.
1. Check SW signal.
2. Check circuit between
SW & IC.
Check motor driver
related circuit.
Only for training and service purposes
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