Section 2. Audio Part; Electrical Troubleshooting Gudie - LG DA-3520 Service Manual

SECTION 2. AUDIO PART

ELECTRICAL TROUBLESHOOTING GUDIE

1.
Turn power on.
NO
Check power supply circuit.
Is power on?
YES
NO
Check laser circuit.
Does initial read work?
Check focus circuit.
Check disc.
YES
NO
Does it play? Check tracking servo circuit.
YES
NO
Check audio circuit.
Does it output audio?
YES
OK
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