Section 2. Audio Part; Audio Troubleshooting Guide - LG SH52TH-C Service Manual

SECTION 2. AUDIO PART

AUDIO TROUBLESHOOTING GUIDE

1. POWER SUPPLY CIRCUIT
Insert power cord
Does red power led turn on?
Turn power on.
Is power on?
Does initial read work?
Does it play?
Does it output audio?
OK
LGE Internal Use Only
YES
YES
YES
YES
YES
YES
YES
NO
Check power plug and power supply circuit.
NO
Check power supply circuit.
NO
NO
Check tracking servo circuit.
NO
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Check laser circuit.
Check focus circuit.
Check disc.
Check audio circuit.
Only for training and service purposes