THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.

FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS

ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
1uF
50V
EXT_SPK
C1804
0.22uF
50V
EXT_SPK
C1808
0.22uF
50V
EXT_SPK
C1807
10K
EXT_SPK
R1805
1uF
50V
EXT_SPK
C1812
22.0uH
EXT_SPK
L1804
10K
OPT
R1804
22.0uH
EXT_SPK
L1805
100uF
25V
EXT_SPK
C1816
100
R1800
EXT_SPK
4.7K
EXT_SPK
R1809

TPA3124D2PWPR

IC1800

EXT_SPK
3
PVCCL_2
2
SD
4
MUTE
1
PVCCL_1
6
RIN
5
LIN
7
BYPASS
8
AGND_1
9
AGND_2
10
PVCCR_1
11
VCLAMP
12
PVCCR_2 13 PGNDR_1
14 PGNDR_2
15 ROUT
16 BSR
17 GAIN1
18 GAIN0
19 AVCC_1
20 AVCC_2
21 BSL
22 LOUT
23 PGNDL_1
24 PGNDL_2
10K
OPT
R1806
BLM18PG121SN1D
EXT_SPK
L1803
100uF
25V
EXT_SPK
C1817
1uF
50V
EXT_SPK
C1802
EXT_SPK
L1802
4.7K
EXT_SPK
R1808
1uF
50V
EXT_SPK
C1813
100
EXT_SPK
R1803
0.47uF
50V
EXT_SPK
C1815
+12V
0.47uF
50V
EXT_SPK
C1814
10K
EXT_SPK
R1807
AMP_RESET
SUB_AMP_MUTE
10K
EXT_SPK
R1802
MMBT3904(NXP)
OPT
Q1800
E
B
C
+3.5V_ST
1uF
10V
EXT_SPK
C1800
EXT_AMP_L
EXT_AMP_R
1uF
10V
EXT_SPK
C1801
EXT_SPK_L
EXT_SPK_R
100pF
50V
OPT
C1818 10K
EXT_SPK
R1811
EXT_SPK_DET
10K
EXT_SPK
R1812
+3.3V_Normal
4.7K
OPT
R1814
100pF
50V
OPT
C1819
100
EXT_SPK
R1815
EXT_SPK_R
EXT_SPK_L
0.1uF
16V
EXT_SPK
C1805
0.1uF
16V EXT_SPK
C1806
0.1uF
16V
EXT_SPK
C1811
10uF
25V
EXT_SPK
C1810
10uF
25V
OPT
C1809
10uF
25V
EXT_SPK
C1803
10K
OPT
R1801
68K
EXT_SPK
R1813
PEJ034-01
JK1800
EXT_SPK
6B T_TERMINAL2
7B B_TERMINAL2
5T_SPRING
4R_SPRING
3E_SPRING

SPEAKER OUT JACK

EXT_SPEAKER_AMP

EXT_SPK

2012.11.12

18

2013 S7LR2
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only