LG 32LB520B Service Manual page 22

5
D
AU. AMP
C164
R166 150R/0402/5%
LINEOUT_APML
47nF/0603/16V
C138 R171
2.2nF/0402/50V/NC 47K/0402/5%
C136
R189 150R/0402/5%
LINEOUT_APMR
47nF/0603/16V
C156 R185
2.2nF/0402/50V/NC 47K/0402/5%
C
B
A
5
4
TPA3110
+12V_NORMAL
C163 R167
R169
100K/0402/5%
L1 1uF/0603/16V
U12
100K/0402/5%
R172 1K/0402/5%
MUTE_AMP 1 1
SD PVCCL PVCCL
2
FAULT PVCCL
L1 3
LINP BSPL
4
R175 150R/0402/5%
LINN OUTPL
C144 220nF/0402/10V
5
GAIN0 PGND
6
GAIN1 OUTNL
7
AVCC BSNL
8
C154
R187 4.7K/0402/5% AGND BSNR
R1
9
GVDD OUTNR
1uF/0603/16V
C155
10
R191
C157
PLMIT PGND
1uF/0603/16V
3K/0402/5%
11
1uF/0603/16V
RINN OUTPR
12
RINP BSPR
C159
13
220nF/0402/16V
NC PVCCR
VCC-AMP
14
PBTL PVCCR
R192
150R/0402/5%
IC-TPA3121D2_0
+12V_NORMAL
R194
10K/0402/5%
1N4148
D4
Q14
3906/SOT-23
R195
CA2
+
100K/0402/5%
100uF/16V/ECS-5M
AMP-MUTE
H: MUTE, L: UN-MUTE
4
3
+12V_NORMAL
VCC-AMP
0.1uF/0402/16V L14
22uH/2.7A
C135
1 2
C137
220nF/0805/50V
28
C143 L16
27
220nF/0603/50V 22uH/2.7A
1 2
26
C145
25
220nF/0805/50V
CON2
24 1
2
C146
23 3
L18
220nF/0603/50V
4
22uH/2.7A
22
1 2
CON/4P/2.5MM
21 C153
C152
220nF/0603/50V
220nF/0805/50V
20
L20
19
22uH/2.7A
1 2
18
C158
17
220nF/0603/50V
C160
16 220nF/0805/50V
15 C161
CA1
+
0.1uF/0402/16V
100uF/35V/ECS-5M
VCC-AMP
+5V_Standby
D5
R196
1N4148
4.7K/0402/5%
D6
1N4148
R208
MUTE
D10
MUTE_AMP
E-MUTE
100K/0402/5%
1N4148
R198
1 Q15
47K/0402/5% 3904/SOT-23
3
2
AUDIO OP
EARPHONE_JACK_R
INR
OP_VCC
C147 R178
INR
R225 100K/0402/5%
AV_AUOUTR1
OP_VCC1
2.2uF/0603/16V 4.7K/0402/5% C149 EP_AMP_MUTE
1nF/0402/16V R332 4.7K/0402/5%
C97
2.2uF/0402/16V
C148
R177 4.7K/0402/5%
INL
AV_AUOUTL1
2.2uF/0603/16V
C150
1nF/0402/16V
EP_AMP_MUTE
R382
R383
0
P11 4
3 MUTE
5
2
1
PHONEJACK
EARPHONE MUTE
+12V_NORMAL
R380
0R/0402/5%
R356
D8
D7 470K/0402/5%
R350
E-MUTE
10K/0402/5%
1N4148/SMD223
R341
1N4148/SMD223
10K/0402/5% Q13
R336 1K/0402/5%
1
3906/SOT-23
CA4
R355
+
100K/0402/5% R378
100uF/16V/ECS-5M
22K/0402/5%
2
1
D9 1N4148/SMD223
+5V_Normal
U13
BH3544F/SOIC8
1 8 OP_VCC1
RO VCC
2 7 EARPHONE_JACK_L
MUTE LO
3 6
RIN BIAS
4 5 INL
GND LIN
CA5 +
100uF/16V/ECS-5M
OP_VCC
R200
24K
NC/24K
EARPHONE_JACK_R
CA7
100uF/16V/ECS-5M
22R/0402/5% R236
100uF/16V/ECS-5M
CA6
EARPHONE_JACK_L
22R/0402/5% R235
R193 R207
1K 1K
R377 1K/0402/5%
EP_AMP_MUTE
Q17
3904/SOT-23
Title Title Title
MSD3393 MSD3393 MSD3393
Size Size Size Document Number Document Number Document Number Rev Rev Rev
Amplifier Amplifier Amplifier
Custom Custom Custom
Date: Date: Date: Wednesday, May 14, 2014 Wednesday, May 14, 2014 Wednesday, May 14, 2014 Sheet Sheet Sheet 9 9 9 of of of 9 9 9
1
D
C
B
A
1.0 1.0 1.0