LG HT353SD-A2 - Section 2: Electrical Part; Troubleshooting Guide

2-1
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Only for training and service purposes
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SECTION 2. ELECTRICAL PART
TROUBLESHOOTING GUIDE
1. Power Supply Circuit
YES
NO
Check power plug and power
supply circuit.
NO
Check power supply circuit.
NO
Check laser circuit.
Check focus circuit.
Check disc.
NO
Check tracking servo circuit.
NO
Check audio circuit.
Does red power led
turn on?
YES
Is power on?
YES
Does red power led
turn on?
YES
Does it play?
YES
Does it output
audio?
YES
YES
Turn power on.
INSERT POWER CORD.
OK