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SUB Schematic
SB-350
Andy Tang
MP1
MODSEL
1
SDZ
2
FAULTZ
3
RINP
4
RINN
5
PLIMIT
6
GVDD
7
GAIN/SLV
8
GND
9
LINP
10
LINN
11
MUTE
12
AM2
13
AM1
14
AM0
15
SYNC
16
AVCC
17
PVCC
18
PVCC
19
BSNL
20
OUTNL
21
GND
22
OUTPL
23
BSPL
24
GND
25
BSNR
26
OUTNR
27
GND
28
OUTPR
29
BSPR
30
PVCC
31
PVCC
32
U200
TPA3116D2DADR
50V
C204
0.22UF
1
2
L204
FB-35608
1%
R208
100K
100K
50V
C202
1UF
50V
C228
1UF
C207
100pF
C206
1UF
C226
100PF
C210
1U/63V
1U/63V
C220
1U/63V
1U/63V
C213
10NF
10NF
C223
10NF
10NF
C205
100PF
C208
100PF
C209
1UF
50V
C215
0.22UF
50V
C219
0.22UF
50V
C224
0.22UF
C214
330PF
330PF
C218
330PF
330PF
1%
R201
1K
1%
R206
1K
R211
10
10
5%
R203
3.3R
3.3R
5%
R209
3.3R
3.3R
R200
100K
100K
GVDD_2
GVDD_2
1%
R205
33K
33K
1
2
L200
FB-35608
R204
10
10
1%
R210
39K
39K
SUB_AIN+
SUB_AIN-
1
2
3
4
JUMP
L202
BOURNS 8103-RC
TP200
TP202
SPK+
SPK-
1
2
3
4
CON200
CON 4 POL PITCH 3.96MM
C217
1NF
1NF
SUB_OUT+
SUB_OUT-
PVDD
PVDD
C200
1000PF
C230
1000PF
1000PF
C201
100NF
C227
100NF
50V
C216
1UF
R202
0
R207
0
C212
1000PF
C222
1000PF
1000PF
50V
C211
2.2UF
2.2UF
50V
C221
2.2UF
2.2UF
AMP_MUTE
C225
10NF
10NF
POWER AMP STAGE
1
2
L201
10uH/6A
1
2
L203
10uH/6A
+
25V
C203
470UF
470UF
+
25V
C229
470UF
470UF
D201
1N4148
2
3
1
Q203
MMBT3906
C241
0.01UF
0.01UF
R238
33K
R239
10K
10K
1%
R240
100K
100K
+
35V
C242
100UF
PVCC1
D202
1N4148
Master mode,32dB;
PVCC1
PVCC2
D
UART_RX
UART_TX
UART_TX
+3.3V_STB
DEBUG AND PROGRAM
LOW=UNMUTE, HIGH=MUTE
TP209
R
F
1
G
N
D
2
G
N
D
3
J200
ATOM Mini RF CONN
R230
0
C234
NC
R214
0
UART_RTS
19
UART_CTS
20
UART_RX
21
UART_TX
22
PCM_IN
23
PCM_SYNC
24
PCM_CLK
25
PCM_OUT
26
SPI_CSB
27
SPI_MISO
28
SPI_CLK
29
SPI_MOSI
30
V
R
E_
IN
3
1
V
D
D
_
B
A
T
3
2
G
N
D
3
3
V
D
D
_
C
H
G
3
4
LED
1
3
5
LED
0
3
6
G
N
D
3
7
S
P
K
_
L_
N
3
8
S
P
K
_
L_
P
3
9
S
P
K
_
R
_
N
4
0
S
P
K
_
R
_
P
4
1
G
N
D
4
2
M
IC
_
B
IA
S
4
3
M
IC
_
B
_
P
4
4
PIO0
49
PIO1
50
PIO2
51
PIO3
52
PIO4
53
PIO5
54
PIO6
55
PIO7
56
PIO8
57
GND
58
RF-IN
59
GND
60
A
IO
1
1
A
IO
0
2
R
ES
ET
3
G
N
D
4
P
IO
9
5
P
IO
1
0
6
P
IO
1
1
7
P
IO
1
2
8
P
IO
1
3
9
P
IO
1
4
1
0
P
IO
1
5
1
1
G
N
D
1
2
V
D
D
1
3
V
D
D
_
U
S
B
1
4
+
1
V
8
1
5
G
N
D
1
6
U
S
B
_
D
P
1
7
U
S
B
_
D
N
1
8
M
IC
_
B
_
N
4
5
M
IC
_
A
_
P
4
6
M
IC
_
A
_
N
4
7
G
N
D
4
8
U201
BM153
BM153
+
C231
100UF
L206
BLM18HD601SN1
BT_3V3
BT_3V3
TP208
(30mA)
R
2
1
7
0
FIRMWARE UPDATED
+3.3V_STB
B
T_
R
S
T
R221
1K
UART_TX
UART_RX
C239
100NF
100NF
C240
1000PF
R
2
1
8
0
V
C
C
_
D
ET
C232
100NF
C233
1000PF
C235
NC
TP212
TP214
TP
2
0
7
TP213
TP
2
0
5
TP
2
0
4
RX
TX
1
3
2
Q200
MMBT3904
MMBT3904
R225
100K
100K
C237
10NF
10NF
R220
10K
10K
+3.3V_STB
HIGH=UNMUTE, LOW=MUTE
P
A
IR
_
S
W
P
H
A
S
E_
S
W
TP
2
0
6
R
2
3
2
0
R
2
3
3
0
S
TB
_
LED
P
O
W
ER
_
LED
R
2
1
5
0
R
2
1
6
0
LINK_LED
R224
0
R223
0
STANDBY
R226
100K
100K
R
2
3
4
0
R
2
3
5
0
S
U
B
_
A
IN
+
S
U
B
_
A
IN
-
R236
0
R237
0
R212
0
1
2
3
4
5
2
3
4
5
J203
WF05PBTM3CAA42
DP
DN
1
2
3
4
2
3
4
J201
4P-SAN
1
2
3
J202
3P-SAN
D203
1N4148
AMP_MUTE
+3.3V_STB
BT_RST
POWER DOWN DET
R222
100K
100K
6.3V
C238
1UF
1UF
( Page 3)
PAIR_SW
PAIR_SW
LINK_LED
LINK_LED
PHASE_SW
PHASE_SW
R213
NC
R219
NC
+19V
POWER_LED
POWER_LED
STB_LED
STB_LED
VCC_DET
6.3V
C236
NC
L205
NC
STANDBY
STANDBY
( Page 1)
MUTE 2014-04-21
2014-04-21
2014-04-21
2014-04-21
2014-04-28
2014-04-28
2014-04-28
2014-04-28
2014-05-24
R241
100K
100K
2014-05-28
2014-05-28
VER.
Q'ty
SHEET:
DRAWING NO:
APPROVED
CHECKED
DRAWN
DESIGNED
MODEL NO:
MA TERIAL
DIM. IN
mm
SCALE
SIZE
DESCRIP TION:
2014-05-22
2014-05-22
David
2014-05-22
C243
1UF
Click on the first or last page to see other SB 350 service manuals if exist.