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• READING OK CHECK (= " NO DISC " DISPLAY)
CONNECTOR LOCKING
CHECK(PN501 ,PN503)
YES
DOES SLED MOVE?
YES
DOSE LENSE MOVE?
(UP&DOWN)
YES
DOSE LASER LIGHT?
YES
DOES SPINDLE ROTATE?
YES
IS READING OK?
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NO
CHECK PN503 PIN3, 4
(SL+,SL-)
NO
CHECK PN501 PIN 15, 16
(FA-,FA+)
NO
CHECK PN501 PIN 10(LD)
NO
CHECK PN503 PIN5.6
(SP+,SP-)
NO
CHECK PN501 PIN 14,15
(TA+,TA-)
- 2-5 -
A
NO
DEFECTIVE PICKUP OR
IC503 OR IC501 OR IC502
B
NO
DEFECTIVE PICKUP OR
C
NO
DEFECTIVE PICKUP OR
D
NO
DEFECTIVE PICKUP OR
E
NO
DEFECTIVE PICKUP OR
IC503 OR IC501 OR IC502
IC503 OR IC501
IC502
IC503
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