LG LCS500UN Service Manual

2-5
Hearing the Pop Noise?
OK
YES
IC402(14, 15, 32), IC802(15),
IC801(22), Q603, Q604, Q605, Q606, Q608
NO
Checked the
Mute Contorl?
YES
2A
No Sound External AMP?
OK
YES
IC802(18, 19, 20, 21, 22, 23)
NO
Checked the
Line Out Signal?
YES
Q603, Q604, Q605, Q606, Q608, IC402(15)
NO
Checked the Line Out
AMP Mute Control?
YES
JK601
NO
Checked the Line Out
AMP Signal in/out?
YES
2B
No output Beep sound?
OK
YES
YES
IC402(80), IC802(14)
NO
Checked the
Beep Control?
2C

LG LCS500UN Specifications

General

Brand	LG
Model	LCS500UN
Category	Car Receiver
Language	English