External Speaker - LG 40LX560H Service Manual

External Speaker

+3.5V_ST
EXT_SPK
EXT_SPK
L3400
R3402
UBW2012-121F
47K
EXT_SPK_DET
HEAD_PHONE
C
R3400
Q3400
47K
B
HP_DET P MMBT3904(NXP)
HEAD_PHONE
E
EXT_SPK
R3401-*1
1K
Do not USE
AMP_RESET
R3401
1K
EXT_SPK
R3403
10K
SIDE_HP_MUTE
EXT_SPK C3401
HP_EXT_SPK_LOUT
1uF
10V
C3402
EXT_SPK
HP_EXT_SPK_ROUT
1uF
10V
Close to AMP IC
C3417
C3400 C3403
1uF 1uF 10uF
50V 50V
35V
EXT_SPK EXT_SPK EXT_SPK
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright 2015 LG Electronics Inc. All rights reserved.
Only for training and service purposes
A13.2V
EXT_SPK
EXT_SPK
C3408
C3405
0.1uF 0.1uF
50V
50V
Close to Pin1
Close to Pin3
EXT_AMP_14Y
IC3400
TPA3124D2PWPR
PVCCL_1 PGNDL_2
1 24
SD PGNDL_1
2 23
PVCCL_2 LOUT
3 22
C3407
0.22uF
50V
MUTE BSL
EXT_SPK
4 21
LIN AVCC_2
5 20
RIN AVCC_1
6 19
BYPASS GAIN0
7 18
AGND_1 GAIN1
8 17
AGND_2 BSR
9 16
C3406
0.22uF
50V
PVCCR_1 ROUT
EXT_SPK
10 15
VCLAMP PGNDR_2
11 14
PVCCR_2 PGNDR_1
12 13
Close to Pin19,20
C3404
C3409
C3418
0.1uF
0.1uF
50V 10uF
50V
EXT_SPK 35V EXT_SPK
Close to Pin10
EXT_SPK
EXT_SPK
C3410
10uF
35V
C3415
Close to AMP IC
47uF
25V
EXT_SPK
EXT_SPK
EXT_SPK
L3401
OPT
C3411
C3413
22.0uH R3408
0.47uF
4.7K
0.47uF
50V
EXT_SPK
50V
EXT_SPK
OPT
C3412 C3414
R3409
0.47uF
22.0uH 4.7K 0.47uF
50V C3416
EXT_SPK
L3402 50V 47uF
EXT_SPK 25V
EXT_SPK
R3404
10K
R3406
OPT GAIN1 GAIN0 AMP GAIN
10K
EXT_SPK
0 0 20dB
0 1 26dB
1 0 32dB
R3413
R3407
10K
1 1 36dB
10K
EXT_SPK
OPT
EXT_OUT_L
EXT_SPK
1.6K
R3410
EXT_OUT_R
EXT_SPK
1.6K
R3411
EXT SPK Jack
EXT_SPK
JK3400
PEJ034-01
E_SPRING
3
R_SPRING
4
T_SPRING
5
B_TERMINAL2
7B
T_TERMINAL2
6B
EXT_AMP_15Y_CI
IC3400-*1
PAM8124
PVCCL_1 PGNDL_2
1 24
SD PGNDL_1
2 23
PVCCL_2 LOUT
3 22
MUTE BSL
4 21
LIN AVCC_2
5 20
RIN AVCC_1
6 19
BYPASS GAIN0
7 18
AGND_1 GAIN1
8 17
AGND_2 BSR
9 16
PVCCR_1 ROUT
10 15
VCLAMP PGNDR_2
11 14
PVCCR_2 PGNDR_1
12 13
EXT_OUT_R
EXT_OUT_L
EXT_SPK_DET
OPT
VA3400
5.6V
LGE Internal Use Only