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Put disc in
tray then close the
door.
YES
Does spindle
rotate?
YES
Focus On OK?
YES
LGE Internal Use Only
NO
Laser Off
Proper
NO
spindle signal on
ES8380?
YES
Proper
SPIN+& SPIN-.
YES
Check P401
connection with pickup.
NO
Proper signal
on A, B, C, D from
pickup?
YES
Proper FOD
signal on IC401
pin5?
YES
Check P400 connec-
tion with pickup.
NO
Check spindle related
circuit on ES8380.
NO
Check SPINDLE
control of IC401.
NO
Check connection
between P400 to pickup.
NO Check related circuit of
ES8380 Focus Signal.
- 3-8 -
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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