LG MCD23 User Manual

3-6
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
9. PWM MODULATION PART CHECK
YES
YES
NO
Refer to SMPS Troubleshooting.
P7905 PIN3:+12V
PIN13,14,15:13.7V
YES
YES
NO
Check each line resistor output voltage.
Check each
IC700 PIN1,22,23,44:+12V
INPUT
YES
NO
Replace the coil.
Check output
line coil.
POWER AMP PART CHECK
OK
Check each IC700
PIN27,26,32,35,40,41 INPUT VOLTAGE
YES
Check PWM Modulator input
each PIN6,8,16,18.
YES
POWER IC700
PIN28,31,36,39 output.

LG MCD23 Specifications

General

Brand	LG
Model	MCD23
Category	Stereo System
Language	English