1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
K
K
J
J
I
I
H
H
G
G
F
F
E
E
D
D
C
C
B
B
A
A
Ch3 Input Jacks
Section:
Product(s):
Ch3.SchDoc
M1814
5
9
Sheet
Of
PCB#:
Rev#:
Modified:
V01
File:
2019-09-17
EXMMobile12
EML Rev#:
01
Tmp Rev:
V031
IG
W100
2K0
0805
R20
50V
22U
5
X
7
M
M
.2
in
C16
W100
10K0
0603
R25
W100
2K0
0805
R21
W100
10K0
0603
R26
50V
22U
5
X
7
M
M
.2
in
C17
3.5mm JCK
4218
3
1
4
T
S
R
2
5
J4
W100
4K99
0805
R22
50V
22U
5X7MM .2in
C18
Phant+
XLR FEML
4010
Mic In
J3
Ch 3
1
TP10
Ch3In+
1
TP9
Ch3In-
1
TP12
Ch3StInL
1
TP11
IG-CH
1
TP30
Ch3StInR
Ch3StInR
Ch3StInL
IG-CH
Ch3In+
Ch3In-
W100
4K99
0805
R223
50V
22U
5X7MM .2in
C140
W125
47K5
0805
R225
W125
47K5
0805
R224
W100
4K99
0805
R222
MC33079D
7668
SO14
10
9
8
+
-
U13:3
BT_Audio
CH3+
CH3-
BT_AGnd
SG9
SG10
SG11
SG12
W100
4K99
0805
R244
W
1
0
0
2K49
0603
R247
W100
4K99
0805
R248
50V
270P
0805
C14
N58
N59
5
0
V
1
N
5
0805
C28C
W125
249R0
0805
R57C
W100
12K1
0603
R52C
50V
330P
0805
C23C
W100
12K1
0603
R55C
16V
33U
RAD .2in
C27C
W
1
0
0
100R
0805
R53C
W100
15K0
0805
R54C
100U
16V
8X7MM .2in
C24C
5
0
V
1
N
5
0805
C25C
W125
249R0
0805
R46C
W100
4K99
0805
R59C
W100
4K99
0805
R48C
W
1
2
5
47K5
0805
R56C
16V
10U
5X7MM .2in
C29C
PMLL4148
SOD80
D4C
MC33079D
7668
SO14
3
2
1
+
-
U4C:1
MC33079D
7668
SO14
5
6
7
+
-
U4C:2
W125
562R0
0805
R58C
W125
562R0
0805
R47C
Vref2
MC33079D
7668
SO14
10
9
8
+
-
U4C:3
20K
4483
M
5C
Level
T
B
P1C:1
MC33079D
7668
SO14
12
13
14
+
-
U4C:4
W125
8K25
0805
R60C
W100
1K0
0805
R41C
W100
1K0
0805
R43C
W100
10K0
0603
R61C
W100
4K99
0805
R42C
MC33079D
7668
SO14
4
11
V+
V-
U4C:5
100N
0805
50V
C22C
100N
0805
50V
C31C
1
0
0
N
0805
5
0
V
C32C
0805
50V
1N
C26C
1
N
5
0805
5
0
V
C30C
6K98
W100
0805
R64C
W125
4M7
0805
R49C
W125
0805
40K2
R45C
W
1
2
5
0805
40K2
R50C
1B
10K
4472
.
T
B
P2C:1
W125
8K25
0805
R65C
+V_PRE
ChOut
BusGnd
ChIG
1B
10K
4472
.
T
B
P3C:1
W100
4K99
0805
R66C
FX
-12V
W100
0805
1K0
R1C
RED
7033
Clip
LD1C
MMBTA14LTIG
SOT-23
7701
Q4C
W
1
0
0
10K0
0805
R33C
W100
1K0
0805
R31C
3V6
SOT23
D3C
PG
1B
10K
4472
.
P2C:2
1B
10K
4472
.
P3C:2
P1C:2
W125
8K25
0805
R83C
Grounds
Grounds
Grounds
Grounds
SOD80
PMLL4148
D11C
W125
3K92
0805
R206C
0805
50V
100P
C128C
0805
50V
10P
C143C
SPCR1C
2495
PMLL4148
SOD80
D32C
+V_PRE-L
W100
15K0
0805
R277
W100
2K0
0805
R299
W125
3K32
0805
R296
W100
27K4
0805
R227
100V
100N
1206
C102
5
0
V
1
0
N
1206
C171
W100
27K4
0805
R276
W
1
0
0
15K0
0805
R280
W
1
0
0
10K0
0805
R230
200V
SOD-323
D23
W
1
2
5
200K0
0805
R307
1
6
V
1
0
U
1206
C175
MMBT3906LT1
S
O
T
2
3
7805
Q38
W
1
0
0
100R
0805
R301
W
1
0
0
15K0
0805
R286
MC33078
7817
SO8
V-
4
V+
8
U2:3
W
1
0
0
10K0
0805
R300
50V
10N
1206
C134
W100
4K99
0805
R229
W125
120K0
0805
R231
100V
100N
1206
C95
W
1
2
5
6K20
0805
R278
Bass Boost / Limit
MC33078
7817
SO8
V-
4
V+
8
U16:3
MC33078
7817
SO8
3
2
1
+
-
U2:1
LM13700MX
SO16
BIAS
15
12
+
14
-
13
1
6
U24:2
MC33078
7817
SO8
5
6
7
+
-
U2:2
MC33078
7817
SO8
5
6
7
+
-
U16:2
-12V
+V_PRE
+V_PRE
+V_PRE
-12V
BC847C
SOT23
Q37
LM13700MX
SO16
9
10
(VCC)
U24:4
LM13700MX
SO16
8
7
(VCC)
U24:3
LM13700MX
SO16
BIAS
2
5
+
3
-
4
1
U24:1
50V
100N
0805
C172
-12V
50V
100N
0805
C177
+V_PRE
W100
4K99
0805
R283
W100
4K99
0805
R240
W100
4K99
0805
R282
W
1
0
0
100R
0805
R305
W
1
0
0
10K0
0805
R302
W
1
0
0
20K5
0805
R285
W100
6K98
0805
R292
W100
27K4
0805
R291
MC33078
7817
SO8
3
2
1
+
-
U16:1
W125
562R0
0805
R304
W125
562R0
0805
R284
LM13700MX
SO16
V+
11
V-
6
U24:5
+V_PRE
-12V
Gnd
W
1
0
0
10M
0805
R303
+V_PRE
BBsig
5X7MM .2in
16V
10U
C139
W100
6K98
0805
R298
W
1
0
0
10M
0805
R306
4X7MM .2in
4U7
63V
C19
4X7MM .2in
4U7
63V
C20
6
