LG DS80QY.DDEULLK Service Manual

3-11
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Only for training and service purposes.
TP7004
TP7005
TP7072
TP7003
TP7001
SL-
FL+
FL-
TL+
SL+
TL-
CN7001
1
SURROUND L-
2
SURROUND L+
3
TOP L-
4
TOP L+
5
FRONT L-
6
FRONT L+
TP7002
FL+
FL-
TL+
TL-
SL+
SL-
TP7009
TP7008
C+
C-
C+
C-
CN7002
1
CEN-
2
CEN+
3
CEN_TOP-
4
CEN_TOP+
TP7006
CT-
CT-
CT+
CT+
TP7007
TP7011
TP7010
TP7014
TP7012
TP7013
TP7015
TR+
SR-
TR-
FR-
SR+
FR+
CN7003
1
FRONT R-
2
FRONT R+
3
NC
4
SURROUND R-
5
SURROUND R+
6
NC
7
TOP_R-
8
TOP_R+
SR+
SR-
TR+
TR-
FR+
FR-
ONE POINT REPAIR GUIDE
3. PROTECTION ERROR
No display or no sound.
3-1. D(DC) PROTECTION
3-1-1. Solution
Replace MAIN board.
3-1-2. How to troubleshoot (Countermeasure)
1) Check DC voltage of speaker out FL+/-, Top L+/- & Surround L+/- (CN7001 pin1, 2, 3, 4, 5, 6),
C+/-, CT+/- (CN7002 pin1, 2, 3, 4), FR +/- & Surround R +/- & TOP R+/- (CN7003 pin1, 2, 4, 5, 7, 8).
3-1-3. Service hint (Any picture / Remark)
CN7001
CN7001
CN7003
CN7003
CN7002
CN7002
< AMP board top view >

LG DS80QY.DDEULLK Specifications

General

Brand	LG
Model	DS80QY.DDEULLK
Category	Speaker System
Language	English