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
of
Filename:
PCB#
Sheet
4
1
Product
Date:
Rev:
YsType:*
ANALOG.SCHDOC
M1529
2016-12-07
ANALOG.SCHDOC
1.00
PS Preamp
10K
0805
R1
1210
C7
1210
C8
0805
C56
1K800
0805
R25
1K800
0805
R23
HORN OUTPUT
D9
0805
470R
0805
R2
6032
C72
2K2
0805
R102
4148
D1005
D1
1K800
0805
R8
SWS/CR75
1K800
R29
0805
C26
1K800
R26
0805
C57
0805
C58
WOOFER OUTPUT
2
6
5
V
CON_HOLE_125
W5
470R
0805
R3
0805
0805
4148
D1005
D2
0805
C20
0805
1K800
0805
R9
0805
C22
3528
U9:3
U9:4
U9:1
U9:2
0805
50V
VDDINT TO DSP
0805
C4
0805
C3
W1 PIN 5
W1 PIN 4
W1 PIN 5
100K
0805
R14
4K99
0805
R12
0603
C2
DO-214ACBI
0805
C65
1206
C35
0805
C6
MC33078
10K
0805
R6
1K02
0805
R10
0805
C5
2K0
0805
R30
W1 PIN 4
Vfs = 0.7Vrms = 1.98Vpp
Vfs = 10.2Vrms = 28.8Vpp
To ADC on ADAU1701
Vfs rms = 0.1mA * (R + 2k)
MC33078
10K
0805
R20
0603
C1
.
J2
47R
0805
R103
LM2671
SO8
7890
D6
MC33078
7817
MC33078
10K
0805
R7
1K02
0805
R11
MC33079D
7668
U9:5
LOW VOLTAGE
SUPPLY
120uH
2910
L1
FUNCTION
4090
XLR-PHONE
J1:1
4090
NCJ6FAV-0
FUNCTION
XLR-PHONE
J1:2
GL1
-15V
-15V
-15V
+15V
+15V
+15V
+15V
IGND
IGND
GND
GND
GND
SPRKGAP
SG7
SPRKGAP
SG8
IGND
IGND
CHGND
CHGND
PSGND
AGND
AGND
AGND
AGND
AGND
DGND
DGND
AIN_LO_SENS
AIN_HI_SENS
CLIP
MIX+
MIX-
WOOFER-
HORN-
HORN
IOUTL-
IOUTL+
IOUTR-
IOUTR+
+3V3
SYNC
GND
DGND
DGND
0805
39R
0805
R68
39R
0805
R69
0805
C39