LG MCV903 Series Service Manual

3-18
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
NO
Check CN702 3PIN
(PROTECION) LOW and HIGH
LOW→normal operation
HIGH→PROTECION
Replace the related part
YES
YES
YES
IC701 Check
9PIN +9V, 14PIN -9V
IC701 1,6PIN R-CH,
17,22PIN L-CH output waveform
CN702
12 PIN LOW → OFF
HIGH → ON
YES
YES
NO
Check the
output LINE COIL
YES
NO
Replace the AMP module and
the said part
YES
Check the
normal operation condition
of each power
OK
OK

LG MCV903 Series Specifications

General

Brand	LG
Model	MCV903 Series
Category	Stereo System
Language	English