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• READING OK CHECK #D
(= "NO DISC" DISPLAY)
DOES SP+ WAVEFORM APPEAR
AT (IC503 PIN12 AND PN503 PIN6)
WAVEFORM #4
SPINDLE MOTOR DRIVE WAVE
DOES SPIN WAVEFORM
APPEAR AT
DEFECTIVE IC501
(IC503 PIN 6)
WAVEFORM #4
SPINDLE DRIVE WAVE
DEFECTIVE IC503
DEFECTIVE PN503
CHECK PN503 CONNECTOR LINE
CONNECTOR
DEFECTIVE PICKUP
END
SPINDLE MOTOR
- 2-10 -
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Troubleshooting
