1
1
2
2
3
3
4
4
5
5
6
6
D
D
C
C
B
B
A
A
1.2M
R42
CODE 2
P1:25
TP5
TP18
0R
R53
100K
R15
47K
R39
0R
R44
-
+
2
3
1
U7:1
560p
C2
N/C
P1:9
TP7
TP17
P4:1
3
1
2
4
5
6
U5
100p
C14
P
3
:2
KW3 PTT OUT
P1:19
560p
C11
AUDIO ENA
P1:17
100p
C39
.1u
C30
0R
L1
4.7K
R30
.1u
C48
EMER IN
PAD1
PROG OUT
PAD4
PROG IN
PAD3
.01u
C21
2.2u
C20
*
R45
.1u
C41
TP4
.1u
C34
75K
R19
39p
C44
TXI
P1:24
COR IN
PAD2
N/C
P1:11
560p
C37
1.2M
R20
+5V
P1:14
.1u
C13
.1u
C29
47K
R41
AUDIO ENH
PAD6
2.2u
C26
1
6
13
4
2
11
9
4
3
37
8
47
28
24
27
20
18
36
43
46
4
8
45
41
6
44
1
2
3
8
4
0
3
9
34
21
22
7
35
17
19
29
25
23
26
12
10
5
15
14
33
32
30
31
49
U1
TP9
MODE IN
P1:20
.1u
C42
.1u
C22
P4:6
10u
C36
.1u
C46
27K
R13
.01u
C9
560p
C19
0R
R52
47K
R31
560p
C4
47K
R3
47K
R6
NTA4001
Q7
8.2K
R16
10K1%
R11
GND
P1:10
.1u
C10
CODE 0
P1:1
47K
R1
.0068u
C15
16
15
3
3
35
36
37
38
3
11
12
20
46
2
1
2
39
40
41
42
3
2
3
1
1
3
1
0
4
5
1
7
4
3
30
29
26
27
28
5
1
4
3
4
4
4
1
4
6
7
8
9
1
8
19
22
23
24
2
5
47
48
U3
*
R17
CODE 3
P1:8
10K
R9
N/C
P1:7
1K
R32
.1u
C12
P4:2
*
R47
560p
C43
47K
R38
.1u
C3
.1u
C23
.1u
C31
10u
C32
.1u
C7
.1u
C25
10K1%
R12
N/C
P1:5
N/C
P1:12
0R
R48
CODE 1
P1:2
7
4
8
2
5
1
6
3
U4
100K
R40
*
R54
P
3
:5
12p
C38
TP11
2.2u
C27
P4:3
0R
R55
P4:4
36K
R21
560p
C1
56K
R18
TXO
P1:21
1K
R33
1K
R26
.1u
C28
SIDE TONE
P1:15
P4:5
-
+
13
12
14
4
1
1
U7:4
KW1 PROG IN
P1:3
P
3
:3
N/C
P1:16
47K
R2
KW3 COR IN
P1:18
-
+
6
5
7
U7:2
220p
C24
.1u
C33
100K
R14
-
+
9
10
8
U7:3
NTA4001
Q6
*
C17
.0068u
C16
32.768KHz
Y1
TRUNK DELAY
PAD7
RXEO
P1:22
P
3
:4
2R
R49
2R
R50
2R
R51
10K
R10
TP6
47K
R4
RXEI
P1:23
.001u
C18
GND
P1:13
47K
R7
100K
R37
4.7K
R8
10u
C35
TP13
1K
R25
TP8
NTA4001
Q4
TP10
VIN+
P1:26
P
3
:1
TP2
KW1 PTT OUT
P1:6
PTT IN
P1:4
TP1
.01u
C45
TP3
*
R43
+VIN
+3.3VDD
+3.3VDD
+3.3VA
+3.3V
VAN
VAN
VAN
VAN
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3VDD
+3.3VA
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
VAN
+VIN
+3.3V
+3.3V
+3.3V
A_ROUTE
B_ROUTE
(SOURCE)
NOTES:
* = NOT INSTALLED
KW3 PTT IN
KW3 PTT IN
KW3 PROG IN
KW3 PROG IN
A_ROUTE
B_ROUTE
+
10u
C5
.01u
C47
3.3K
R24
3.3K
R28
2.2u
C40
TRUNKING_DELAY
TRUNKING_DELAY
0R
R57
560p
C49
CS
7
SO
12
SI
13
SCK
14
DVDD
1
INT2
9
INT1
8
GND
2
*
AVDD
6
GND
5
IADDR0
4
N/C
3
GND
10
GND
11
U10
.1u
C6
+3.3V
+3.3V
CS
1
SO
2
SI
5
SCK
6
VCC
8
HOLD
7
WP
3
GND
4
26DF081A
U6
47K
R64
SB1
D1
SB1
D7
SB1
D8
SB1
D4
SB1
D5
SB1
D6
SB1
D2
SB1
D9
SB1
D10
SB1
D11
47K
R59
47K
R58
*
R35
B_ROUTE
CP
CJS
2007-12-16
DML
2013-01-21
D-1
1 of 1
7508
MIDIAN ELECTRONICS, INC.
DATE:
DESIGN:
DWN BY:
REV:
APPR
COPYRIGHT ©
REV
SHEET
PROJECT NUMBER
DOCUMENT NAME
SCHEMATIC
2013
SVR-1-KW3/VM-3-KW3
IN SYSTEM
SERIAL PROGR.
5206
IN1
1
ENA
3
G
N
D
2
R
E
S
4
OUT
5
VR1
*
IN1
1
ENA
3
G
N
D
2
R
E
S
4
OUT
5
VR2
*
IN1
1
ENA
3
G
N
D
2
R
E
S
4
OUT
5
VR3
