LG DA-3520 - DVD Part Troubleshooting Guide

- 3-1 -
SECTION 3. DVD PART
ELECTRICAL TROUBLESHOOTING GUIDE
1. µ-COM Circuit
A. Open/Close abnormal
B. Video abnormal
Check the
connection of P5101.
Check IC501 Pins 13, 14.
YES
NO
NO
YES
YES
(If OK)
YES
Check Front.
Reconnect it.
Refer to SERVO part.
Check the connection of MD.
OPEN/CLOSE ABNORMAL
Check Audio jack.
YES (If OK)
YES (If OK)
YES (If OK)
YES (If OK)
Check PLLFC of MPEG part.
Refer to Audio part.
Refer to MPEG part.
Replace B/D.
AUDIO ABNORMAL