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❏ TROUBLESHOOTING
• CD PART
Turn power on.
Is power on?
NO
Does initial
read work?
NO
Does it play?
NO
Does it output
audio?
NO
OK
NO
NO
Check the DISK circuit.
YES
Check the Laser.
YES
Check the focus circuit.
YES
Check the TRAKING servo.
NO
NO
- 2-2 -
Check power supply circuit.
PN808 PIN1, 12V
PN808 PIN2, 6.2V
PN808 PIN3, 5V
IC803 PIN2, 3.3V
NO
Check the connector PN801,
PN802, PN803, PN807, PN808.
Check the tracking servo.
Check the PN808 PIN8, 9.
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