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TROUBLESHOOTING
Turn power on.
Is power on?
YES
Does initial read work?
YES
Does it play?
YES
Does it output audio?
OK
NO
NO
Check the DISK turns
YES
Check the Laser
YES
Check the focus circuit
YES
Check the TRAKING circuit
NO
NO
- 2-3 -
Check power supply circuit.
PN807 PIN5, 6.2V
PN807 PIN7, 5V
IC803 PIN 2, 3.3V
NO
Check the connector
PN801, PN802, PN809
Check the tracking servo circuit.
Check the PN807 PIN1, 3
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