Section 2. Electrical Part; Troubleshooting Guide - LG SH33SU-S Service Manual

SECTION 2. ELECTRICAL PART

1. Power Supply Circuit
INSERT POWER CORD.
Does red power led
turn on?
Turn power on.
Is power on?
Does red power led
turn on?
Does it play?
Does it output
audio?
OK
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Only for training and service purposes

TROUBLESHOOTING GUIDE

YES
YES
YES
YES
YES
YES
YES
NO
Check power plug and power
NO
Check power supply circuit.
NO
Check laser circuit.
Check focus circuit.
NO
Check tracking servo circuit.
NO
Check audio circuit.
2-1
supply circuit.
Check disc.
LGE Internal Use Only