8 7 6 5 4 3 2 1
13.8 VDC
R12
R12
150R
150R
C6
C6
R8 D3
R8 D3
R2
R2
R5
R5
47u
47u
2M 12K 9.2 V
2M 12K 9.2 V
2M
2M
D D
IC1B
IC1B
LM324
LM324
IC1A
IC1A
6
R4
R4
-
-
LM324
LM324
2 7
47K
47K
-
-
1 5
+
+
R1
R1
D1 D2
D1 D2
R10
R10
3 C7
C7
VR1
VR1
+ C5
+ C5
220R C4
220R C4
100K
100K
100n
100n
1N4148 1N4148
1N4148 1N4148
10K 4u7
10K 4u7
2n2
2n2
C1
C1
C2
C2
4u7
4u7
R3 10K R6 1M
R3 10K R6 1M
2n2
2n2
C8
C8
2n2
2n2
R7
R7
R9 R11
R9 R11
C3 1n
C3 1n
IC2A
120R
120R
120R 180K
120R 180K
MC14016B
2
1
C C
14 7
13
R13
R13
1.2M
1.2M
IC1C
IC1C
LM324
LM324
R15
R15
10
10K
10K
Mike Audio Output
MC14016B
8
OR
9
IC2D
IC2C CD4016B
C10
C10
MC14016B
MC14016B
R14
R14
4u7
4u7
10 11 3
89 4
470K
470K
Mike Audio Input
B B
IC2B
VR2
VR2
470K
470K
6
12
5
C9
C9
150pF
150pF
SW1
SW1
IC1D
IC1D
LM324
LM324
R16
R16
12
DRAWN BY: Rick Jackson Euro Radio Co
DRAWN BY: Rick Jackson Euro Radio Co
DRAWN BY: Rick Jackson Euro Radio Co
100K
100K 14
A A
13
Title
Title
SW1 Processor On/Off switch Title
Speech Processor Module
Speech Processor Module
Speech Processor Module
This switch can be one of the
Radios front panel switch like
Size Document Number Rev
Size Document Number Rev
Size Document Number Rev
Channel 9.
ERC-SP-2.SCH A
ERC-SP-2.SCH A
ERC-SP-2.SCH A
Date: Friday, January 05, 2007 Sheet 1 of 1
Date: Friday, January 05, 2007 Sheet 1 of 1
Date: Friday, January 05, 2007 Sheet 1 of 1
8 7 6 5 4 3 2 1
4
11
+
+
-
-
+
+
-
-