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D
Focus
on OK?
YES
Track
on OK?
YES
Disc is play?
YES
E
LGE Internal Use Only
Proper
NO
signals on A,B,C,D of
1389DE/LP
Check
FOD signal on
1389DE/LP
FCS+ & FCS-
output properly?
Check cable connection
on pick-up head.
Properly
NO
TRD signal on
1389DE/LP?
TRK+ & TRK-
output properly?
Check cable connection
on pick-up head.
NO
Check RF signal waveform.
3-8
NO
YES
NO
YES
YES
NO
YES
NO
YES
Copyright © 2008 LG Electronics. Inc. All right reserved.
Check connections between
1389DE/LP and pick-up head.
Check the FOD connection on
1389DE/LP and motor driver.
Check the focus control
amp circuit on motor driver
Check the TRD
connection on 1389DE/LP
and motor driver
Check the tracking control
amp circuit on motor driver
Only for training and service purposes
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