Troubleshooting - LG FFH-185A Service Manual

TROUBLESHOOTING

Turn power on.
Is power on?
YES
Does initial read work?
YES
Does it play?
YES
Does it output audio?
YES
OK
NO
Check power supply circuit.
NO
NO
Check tracking servo circuit.
NO
- 2-3 -
(Check PN 501)
Check laser circuit.
Check focus circuit.
Check disc.
Check audio circuit.