Motorola CDM Series - CDM Control Station Troubleshooting; CDM Control Station Interface Module (CSIM), Audio Section

October, 2004 6880309N15-A 1
5VA
AGND
5V
A
AGND
R28
56
0
D2
1N
4148W
100KP
R2
100KP
R3
100KP
R5
C1
.1
C6
22
pF
DGND
Q2
4401
100KP
R6
+10V
1M
R2
0
1M
R1
6
C3
.1
C2
.1
1M
R1
5
100KP
R
120
5VA
1M
R2
1
150K
R
121
2.2K
R1
1
+
10uF
C1
5
10KP
R4
0
10KP
R3
8
68K
R1
3
C19
.0
1
100KP
R
119
100KP
R5
0
1KP
R4
8
AGND
10KP
R4
2
10KP
R4
3
5VA
68K
R4
4
1KP
R5
1
1KP
R4
9
5VA
5V
A
15KP
R4
5
5VA
390K
R3
5
1M
R4
7
R57
1
R56
1
2.2K
R6
2
C30
.1
R67
1
TX AU
D
R59
1
R60
1
R61
1
B-
HSSLV2
HSSLV1
1.5K
R2
7
D5
1N
4148W
C7
.1
560
R1
100KP
R4
R36
1K
P
5VA
1M
R3
3
1M
R7
AGND
1M
R8
6.8K
R1
9
2.2K
R1
2
R37
56
0
C47
.0
1
1M
R2
4
5VA
1M
R2
5
C11
.1
10KP
R3
2
RD RX AU
D
JU4
SDR DO
T
AGND
1.5K
R3
1
B-
33, LO ESR
+
C22
+
10uF
C1
6
C24
.1
NOT USED
R
118
B-
6.8K
R5
8
B+
220, 25V
C28
+
ACC_RX
+
10uF
C1
4
AC_MICLO
ACMI
CH
1.5K
R2
9
DM_MICLO
AGND
LMIC
1
LMIC
2
HSTI
P2
HSTI
P1
AGND
C12
.1
5VA
G7_ONH
I
D3
1N
4148W
D4
1N4148W
G4_ONHI
5V
A
22K
R1
8
G3_ONHI
5V
A
AGND
HS_SNS
SHEET 2
12
+
13
_
14
U1:D
3403
AGND
68K
R2
2
C4
.1
22K
R1
4
JU1
SDR DO
T
1K
R1
0
22K
R9
5VA
EXTSPKR2
EXTSPKR1
R52
100
10VRMS Reference
10KP
R4
1
C13
22
pF
G5_ONHI
G8_ONH
I
CONRXAUD
600 mVRMS Reference
Filtered Audi
o
SPMUTE
R53
10
0
+
1uF
C2
0
100KP
R3
4
100KP
R2
6
ICLVLCONT
MIC SUM
G1_ONHI
1 2
3 4
L1
R54
1
R55
1
470, 16V
+
C23
5VA
100KP
R6
4
B-
C18
.1
AGND
1M
R4
6
R66
100K
P
100KP
R63
1 W into 8 Ohms = 2.8VRMS
220, 25V
C29
+
C10
.1
DMICHI
ACC MIC AUD
D1
1N
4148W
1M
R3
0
1
IO
2
IO
13
CT
RL
U4:A
40
66
C8
.1
AGND
220K
R1
7
4
IO
3
IO
5
CT
RL
U3:B
40
66
3
+
2
-
1
U1:A
3403
Q1
4403
C9
.1
JU3
SDR DO
T
JU2
SDR DO
T
C5
.1
1
IO
2
IO
13
CTRL
U3:A
40
66
11
IO
10
IO
12
CT
RL
U3:D
40
66
G6_ONHI
5
+
6
-
7
U2:B
3403
10KP
R3
9
3
+
2
-
1
U2:A
3403
4
IO
3
IO
5
CT
RL
U4:B
40
66
C21
10
0pF
10
+
9
-
8
U1:C
3403
B+
56.2KP
R2
3
10
+
9
-
8
U2:C
3403
.47, Film
C3
1
2
3
4
5
6
7
8
U6
TDA7056A
35 dB typical
+
10uF
C1
7
10K
POT3
HEADSET AUDIO LEVE
L
+
1uF
C2
5
10K
POT2
ACC RX LEVE
L
AGND
+
1uF
C26
80 mVRMS Reference
100KP
R6
5
CNSTNT RXAU
D
12
+
13
_
14
U2:D
3403
ICLVLCONT
LSPKR1
LSPKR2
3
+
2
-
1
U7:A
3403
C27
.1
POT1
10K
IC/MONITOR LEVE
L
8
IO
9
IO
6
CT
RL
U3:C
40
66
8
IO
9
IO
6
CT
RL
U4:C
40
66
G2_ONHI
5
+
6
-
7
U1:B
3403
1 W into 16 Ohms =4 VRMS
TXAUD
A
CCAUDGND
10
+
9
-
8
U7:C
3403
11
IO
10
IO
12
CT
RL
U4:D
40
66
1
BP
3
GN
D
14
VC
C
2
IN
+
6
IN
-
8
OU
TU5
G =
34 dB
5
+
6
-
7
U7:B
3403
CDM Control Station Interface Module (CSIM), Audio Section