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B
Does the
SLED move to inner
side when it is at
outer position?
YES
Do not put in disc and
tray close.
Optical
lens has movements
for searching
focus?
YES
C
LGE Internal Use Only
Motor
NO
driver DR_MUTE
pin is high?
Is SLD_PWM
DC level higher
than 1.65V?
FAN_SLD+ &
FAN_SLD- output
properly?
Check the cable
connection with MECHA.
Proper
NO
FOD outputs to motor
driver?
Proper
FCS+ & FCS-
outputs?
Check cable connect on
with pick-up head.
3-6
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
Copyright © 2008 LG Electronics. Inc. All right reserved.
Check the connection line of
DR_MUTE signal.
Check the related
circuit of SLD_PWM
Check the amp
circuit on motor driver.
Check FOD connection
on 1389P and motor driver.
Check the amp circuit
on motor driver.
Only for training and service purposes
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