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S i n g l e e n d e d
+3.5V_ST
EXT_SPK
4.7K
R920
SUB_AMP_MUTE
001:AB13
EXT_SPK
C928
10V
1uF
EXT_AMP_L
EXT_AMP_R
10V
1uF
C927
EXT_SPK
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.
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
+24V
+3.5V_ST
EXT_SPK
4.7K
R923
EXT_SPK
C914
0 . 1 u F
50V
EXT_SPK
10K
C
R922
B
EXT_SPK
Q903
IC901
MMBT3904(NXP)
E
TPA3124D2PWPR
EXT_SPK
PVCCL_1
PGNDL_2
1
24
SD
PGNDL_1
2
23
R921
10K
PVCCL_2
LOUT
OPT
EXT_SPK
3
22
EXT_SPK
R924
MUTE
BSL
10K
4
21
LIN
AVCC_2
5
20
RIN
AVCC_1
6
19
BYPASS
GAIN0
7
18
AGND_1
GAIN1
8
17
AGND_2
BSR
EXT_SPK
9
16
PVCCR_1
ROUT
10
15
C911
1uF
50V
VCLAMP
PGNDR_2
EXT_SPK
11
14
C912
PVCCR_2
PGNDR_1
1uF
12
13
50V
EXT_SPK
C913
0 . 1 u F
50V
EXT_SPK
EXT_SPK
EXT_SPK
C915
C916
0 . 1 u F
4 . 7 u F
50V
50V
EXT_SPK
EXT_OUT_L
L904
EXT_SPK
C919
C921
22.0uH
R934
10K
0 . 4 7 u F
0 . 4 7 u F
4.7K
R936
50V
50V
EXT_SPK
C917
EXT_SPK
EXT_SPK
0 . 2 2 u F
50V
C920
C922
R935
0 . 4 7 u F
0 . 4 7 u F
4.7K
22.0uH
50V
50V
EXT_SPK
EXT_SPK
EXT_SPK
L905
EXT_OUT_R
EXT_SPK
EXT_SPK
10K
R937
R930
10K
R932
OPT
10K
OPT
R931
R933
10K
10K
EXT_SPK
EXT_SPK
C918
0 . 2 2 u F
50V
EXT_SPEAKER
EXT_SPK
JK902
+3.3V_Normal
P E J 0 3 4 - 0 1
E_SPRING
3
EXT_SPK
R939
100K
EXT_SPK
R938
100
EXT_SPK_DET
R_SPRING
4
EXT_OUT_R
T_SPRING
5
EXT_OUT_L
B_TERMINAL2
C925
C926
7B
1uF
1uF
OPT
OPT
T_TERMINAL2
6B
LA2AW
RJP / EXT AMP
2 0 1 2 . 0 9 . 1 1
9
LGE Internal Use Only
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