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+15VIP+
D2
D1005
CDSF4148
TL072
6
-
R181
5
+
W125
U7:2
31K6
0805
D40
C33
0603
CDSF4148
D1005
R59
187K
GNDA
0805
4
W1:4
4
N2
R5
GNDA
W125
GNDA
22K1
3
W1:3
4
0805
N10
+15VIP+
2
W1:2
4
TL072
N11
2
-
D3
D1005
CDSF4148
R165
1
3
+
W1:1
4
W125
U7:1
N12
31K6
0805
C37
0603
FROM JACK BOARD
GNDA
R58
187K
0805
TO CHASSIS
CON_HOLE_156
GROUND
GNDA
1
HC2
CHSGND1
C49
SIGHP
16V
10U
1206
C50
R37
5
16V
10U
U1:2
+
W100
SO8
6K98
7
1206
0805
6
-
7817
MC33078
R75
10K00
R32
C52
0805
W125
0805
10K00
0805
C51
100P
50V
0805
GNDHP
R76
6K98
+15VIP
0805
50V
GNDAMP
C15
MC33078
0805
8
100N
7817
V+
V-
SO8
U1:3
4
GNDAMP
50V
C20
0805
100N
-15VIP
CHECK RESISTOR VALUES WITH TOM
+15VIP
R21
W100
100R
0805
GNDA
R38
7669
W100
100R
7
0805
-15VIP
SO8
R107
22K1
0805
W125
R12
R30
R4
W125
W100
W125
10K00
2K32
37K4
0805
0805
0805
TL072
6
7669
-
TL072
7
2
-
R49
750R
5
+
0805
R50
SO8
U8:2
DNS
3
+
U8:1
0805
R6
SO8
10K00
0805
VSS
VSS
7669
R55
1
560R
0805
SO8
D39
C48
CDSF4148
10U
16V
D1005
1206
R56
200R
0805
VSS
HP OUTPUT TO SA315S
R28
R31
W125
W125
K1:2
47R5
10R0
3700
0805
0805
RELAY 2C
GNDAMP
RELAY 2C
GNDAMP
3700
3
U1:1
+
SO8
K1:1
R39
R42
1
R57
W125
W125
2K0
47R5
10R0
2
-
0805
0805
0805
7817
MC33078
C40
GNDHP
100P
50V
0805
R62
R65
W125
W125
4K02
4K02
0805
0805
+15VIP
+15VIP+
R18
W100
100R
0805
50V
50V
TL072
TL072
C13
C14
8
8
7669
7669
0805
0805
100N
100N
V+
V+
U7:3
U8:3
V-
V-
SO8
SO8
4
4
50V
C19
0805
100N
R33
W100
100R
0805
-15VIP
R48
DSP.SchDoc
W125
CHSGND1
750R
0805
CHSGND1
7669
1
C17
R52
INPUT1
W125
DSP SHEET
10U
16V
560R
1206
0805
R13
200R
0805
VSS
INPUT2
VSS
ANALOG GND
VSS
+15V
VSS
GNDAMP
XC19
1
CON_HOLE_156
GNDHP
GNDA
CHSGND
1
3 W6:1
N18
2
3 W6:2
+15VW4
N17
D11
3
3 W6:3
N16
CDSF4148
D1005
+15VW2
+15V
D10
CDSF4148
GNDHP
D1005
-15VW4
RIBBON_GND
-15V
D7
CDSF4148
D1005
-15VW2
D12
CDSF4148
D1005
50V
C10
C31
TL072
0805
8
100N
7669
63V
V+
330N
U9:3
RAD .2in
V-
R23
SO8
47K
50V
GNDAMP
4
0805
C5
0805
100N
GNDAMP
OUTPUT2
C9
OUTPUT1
63V
330N
RAD .2in
R22
47K
0805
R16
W100
2K0
0805
GNDAMP
LEDSOFF
W2-PIN2
W4
13in 8C-26AWG
FROM POWER SUPPLY
RIB 1 W/LCK
-15V
GNDA
DNS
W4:8
W4:7
W4:6
W4:5
LED
W4:4
W4:3
TH1
W4:2
MUST BE PLACED
ON INPUT PCB
W4:1
L2
NEAR RIBBON
+15VIP
7967
50V
TO POWER
C38
AMP PCB
0805
100N
L12
ZD1
18V0
SOD-323
SPACER GROUND
7967
HERE
50V
ZD2
C39
18V0
GNDA
100N
0805
SOD-323
L10
-15VIP
7967
CODEC B OUTPUT
FOR TEST PURPOSE
TL072
5
7669
+
TP15
7
SIGHP
6
U9:2
-
SO8
R17
R73
R47
W100
W100
W125
2K0
2K0
4K02
0805
0805
0805
SIGNAL TO
TL072
AMP INPUT
3
7669
+
R51
1
W125
2
U9:1
47R
-
0805
SO8
R53
R54
W100
W125
2K0
4K02
0805
0805
Use W2 for single Amplifier Testing
W2
13in 8C-26AWG
RIB 1 W/LCK
-15VW2
-15VW4
8
8
8
8
W2:8
+15VW2
N13
+15VW4
7
7
8
8
W2:7
N3
6
SIGNAL
6
N4
8
8
W2:6
C2
0603
5
5
8
8
W2:5
N5
4
4
8
8
W2:4
N6
3
3
R40
8
8
W2:3
W125
N7
0R0
0805
2
2
8
8
W2:2
N8
GNDAMP
1
1
8
8
W2:1
N9
RIBBON_GND
TO POWER
AMP PCB
Inputs
Section:
SA115S/SA221S
/SA218S
Product(s):
PCB#:
M1950
Rev#:
V01
Eng:
T.Wood
Sheet
Modified:
2023-09-08
File:
INPUT.SchDoc
1
Of
3
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