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