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
D
D
C
C
B
B
A
A
VAN
VAN
50mV - 10VPP
50dB
VAN
1.2VPP
C
DECODER_2
DECODER_1
DTMF
DECODER
IN SYSTEM
SERIAL PROGR.
3.3V
VAN
50mV - 10VPP
50dB
VAN
1.2VPP
TX_A
TX_A
LINE_IN_A
LINE_IN_B
LINE_IN_A
LINE_IN_B
M_LEAD_N/O
WIPER
N/C
TX_600_Ohm_OUT_A
TX_600_Ohm_OUT_B
PTT_OPEN_COLLECTOR
RING
HOOK
12V
EXT_MIC_HI
MIC_MUTE
SPKR_MIC_TELCO_DRIVER
SPKR_MIC_TELCO_DRIVER
TAPE_RECORD/PROG OUT
DECODER_1
DECODER_2
12V
12V
COR/COS_IN_UED
COR/COS_IN_UED
E_LEAD_2
4-WIRE OPTION - RX IN
VALIDATE/ALARM INPUT
VALIDATE/ALARM INPUT
SPEAKER_ENABLE
AGC
AGC
EXT_MIC_PTT_DISPTACH
EXT_MIC_PTT_DISPTACH
EXT_MIC_PTT_2
EXT_MIC_PTT_1
EXT_MIC_PTT_1
EXT_MIC_PTT_2
VAN
TX_B
TX_A
TX_B
SPKR_MIC_TELCO_DRIVER
TX_A
TX_B
TX_B
12V
12V
3.3V
5V
12V
DECODER_1
ENABLE_1
ENABLE_2
ENABLE_1
ENABLE_2
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
3.3V
3.3V
3.3V
GUARD_TONE
GUARD_TONE
3.3V
3.3V
5V
RX_IN_2
5V
CHASSIS GND
J5
(MULTITURN)
SQUELCH_NOISE
SQUELCH_NOISE
12V
5V
12V
VAN
VAN
VAN
RX_IN_3
RX_IN_3
SPKR_OPT_2
RX_IN_2
RX_IN_2
RX_IN_3
ENABLE_1
NOTE:
J3:1 -
PR-10 : VALIDATE INPUT
VAE-10 : ALARM INPUT
IS-2 : NOT CONNECTED
POTS OPTION
OPTIONAL 4-WIRE TX LINE DRIVER/NOTCH FILTER
SPEAKER MIC OPTION
5V
0R
R33
*
C12
0R
R64
3.3K
R58
*
C154
.001u
C153
.068u
C150
.047u
C30
.0047u
C29
.01u
C10
.01u
C35
10K
C31
*
C34
*
C151
1u
C16
750K
R80
*
R94
NOTCH FILTER REMOVES 2175Hz FROM VOICE
2175Hz
TIP
1
RING
2
X
M
IT
(-
)
9
RCV
8
V
C
C
1
0
G
N
D
1
2
RI
5
OFFHK
4
XMIT(+)
11
D
/V
6
PSQ
7
CH1840D
U10
SPKR_OPT_1
1M
R113
*
R126
*
Q22
*
Q19
*
Q20
120K
R169
10K
R86
1M
R107
*
R72
*
Q13
*
Q3
*
Q12
120K
R97
10K
R65
RX_IN_1
SB1
D24
5V
1M
R122
*
R85
*
Q16
*
Q14
*
Q15
120K
R129
10K
R74
*
CH_ACQ2
D9
470R
R10
RED
CH_ACQ1
D1
470R
R5
470R
R4
YEL
COR_1
D6
5V
1M
R112
*
R99
*
Q21
*
Q17
*
Q18
120K
R153
10K
R76
470R
R11
*
COR_2
D10
)
JP20:1
JP20:2
JP20:3
JP21:3
JP21:2
)
JP21:1
*
R105
*
C92
*
C93
*
R141
*
R39
0R
R44
33K
R48
*
R59
100K
R43
*
R60
1K
R52
*
C36
47K
R51
TP19
JP22:1
JP22:2
JP23:1
GRN
PTT_2
D11
470R
R12
*
R135
*
C79
JP22:3
JP23:2
JP23:3
SB1
D20
*
R32
COR_2_HFSN
COR_2_HFSN
0R
RJ8
1K
R143
560p
C94
100p
C95
*
R108
2.2u
C106
560p
C108
100p
C109
10K
R26
200K
R40
*
R115
E_LEAD_2
22K
R87
1.8K
R88
*
C133
24K
R148
RX_IN_1
RX_IN_1
OPTIONAL UED-1 2 TONE/5 TONE DECODER
-
+
2
3
1
4
1
1
*
U8:1
-
+
6
5
7
*
U8:2
-
+
9
10
8
*
U8:3
-
+
13
12
14
*
U8:4
-
+
2
3
1
4
1
1
LMV324
U5:1
-
+
9
10
8
LMV324
U5:3
-
+
6
5
7
LMV324
U5:2
-
+
13
12
14
LMV324
U5:4
NORMAL H-PASS NOISE SQUELCH FILTER
OPTIONAL BANDPASS/LO-PASS FILTER
0R
RJ18
*
RJ23
560p
C13
2175Hz
+
_
+
_
+
_
+
_
.47u
C26
1
2
JP6
REMOVE JP6 WHEN USING
HF SQUELCH NOISE IN
/\
\/
/\
\/
10K
RC1
/\
\/
/\
\/
130K1%
RC3
--
I
I-
-
.01u
RC2
/\
\/
/\
\/
36K
RC5
--
I
I-
-
.0022u
RC4
--
I
I-
-
330p
RC6
*
C149
27K
R81
100p
C144
470K
R77
.1u
C52
--
I
I-
-
.001u
RC8
.1u
C74
TP30
*
R54
2.2u
C75
100K
R152
*
D17
*
R45
4.7K
R55
OPTIONAL IN/OUT
PAD2
*
R66
0R
R16
2.7K
R62
0R
R61
*
R56
3.3K
R150
.015u
C40
.015u
C127
.0047u
C128
TP31
1K
R151
TP1
TRANSPOND
SELECT REPEAT MODE
P1:1
12V
RED
P1:2
COR/COS IN UED
P1:3
GROUND
BLACK
P1:4
ALERT TONE
BLUE
P1:5
RX TONE IN
ORANGE
P1:6
MON/SQ OUT
P1:7
MIC MUTE
P1:8
PTT OUT
P1:9
HORN/SCAN/DISABLE
GRAY/WHITE
P1:10
PTT IN
P1:11
PROG IN
ORANGE/WHITE
P1:12
EMERGENCY IN
P1:13
TP2
TP3
TP4
TP5
TP6
TP7
TP9
TP8
5V
100K
R123
TP11
*
RJ1
TP10
TP12
P
2
:5
P
2
:4
P
2
:3
P
2
:2
P
2
:1
3
2
K
H
z
Y1
12p
C39
100p
C37
47K
R36
47K
R15
47K
R19
DEBUG
TP34
TP35
TP36
*
D16
SB1
D13
SB1
D15
SB1
D14
*
R23
*
R18
*
C15
0R
R27
.1u
C25
10K
R3
2
5
1
4
3
MONITOR
RECORD
PROG
J8
100p
C1
0R
R182
47K
R47
.01u
C33
TP18
100K
R82
SB1
D19
3.3K
R46
TP17
3.3K
R41
.012u
C21
3.3K
R42
.015u
C32
.0047u
C28
.1u
C27
1K
R50
*
R156
1
1
3
3
2
2
*
RP2
*
R157
*
R155
*
R162
*
C132
*
R166
-
+
13
12
14
*
U12:4
-
+
2
3
1
4
1
1
*
U12:1
-
+
9
10
8
*
U12:3
-
+
6
5
7
*
U12:2
*
R159
*
R164
*
C143
*
R177
*
R181
*
R178
*
R158
*
R167
*
R173
*
R163
*
R171
*
R172
*
C131
*
R176
11
33
22
*
RP3
*
C96
*
C99
*
C98
G
S
D
*
Q4
*
R53
.022u
C152
*
C97
*
C103
1
2
IMPEDANCE
JUMPER
JP9
*
R134
*
C104
*
C105
*
C101
*
C100
*
C102
*
R136
*
R138
*
R106
TP26
*
C82
*
C84
*
C83
*
D32
SQUELCH NOISE IN
*
J2:1
EXT ENABLE
J2:2
MIC AUDIO
J2:3
GROUND
J2:4
COR/COS
J2:5
13.6V EXT B+
J2:6
PTT OUT
J2:7
SPEAKER-
J2:8
J2:9
LTR DELAY
J2:10
J2:11
J2:12
RADIO 2
RJ45-10
100p
C22
560p
C17
TP14
0R
R28
.001u
C19
100p
C24
560p
C20
TP13
2.2u
C14
IN1
1
ENA
3
G
N
D
2
R
E
S
4
OUT
5
MIC5206 3.3V
U4
10K
R25
10K
R24
10K
R38
*
R37
0R
R35
TP33
.001u
C6
100p
C5
560p
C7
2.2u
C8
0R
R13
IN
1
G
N
D
2
OUT
3
LM7805
U1
.001u
C18
100p
C4
560p
C3
2.2u
C2
RED
PWR
D4
1K
R1
.001u
C140
100p
C135
560p
C136
2.2u
C137
IN
1
G
N
D
2
OUT
3
2940A
U13
0R
R180
TP16
2
1
3
EXT PWR
J1
4001
D34
4001
D33
.001u
C85
100p
C87
560p
C86
47K
R20
100K
R30
200K
R17
1K
R22
10K
R14
2.2u
C9
33K
R29
1K
R21
TP15
100p
C112
100p
C107
.001u
C113
100p
C111
560p
C110
*
R140
*
R109
TP27
0R
R139
100p
C114
560p
C115
1
2
)
IMPEDANCE
JUMPER
JP11
47K
R103
560p
C80
100K
R137
GRN
PTT_1
D5
470R
R2
SB1
D29
100p
C116
SEE NOTE
BELOW
RADIO 1
RJ45-10
J3:1
EXT ENABLE
J3:2
MIC AUDIO
J3:3
GROUND
J3:4
COR/COS
J3:5
13.6V EXT B+
J3:6
PTT OUT
J3:7
SPEAKER-
J3:8
J3:9
LTR DELAY
J3:10
J3:11
J3:12
TP37
TP38
*
J6:1
YEL
J6:2
GRN
J6:3
RED
J6:4
BLK
J6:5
J6:6
J6:7J6:8
*
2KV
C126
*
2KV
C125
*
L5
*
L6
*
RESETTABLE FUSE
F6
*
RESETTABLE FUSE
F5
*
TZ6
*
TZ5
*
C78
*
R125
*
R120
*
R119
*
R121
*
C70
*
C69
*
C71
*
C72
*
C61
*
R102
*
R101
*
C60
*
R100
YEL
*
D7
YEL
*
D2
*
R6
*
2KV
C123
*
2KV
C90
*
L1
*
L2
*
RESETTABLE FUSE
F1
*
RESETTABLE FUSE
F2
*
TZ1
*
TZ2
*
R130
*
R131
*
C76
*
R132
SB1
D28
*
D27
100K
R83
5V
100K
R78
1
2
3
4
5
6
T2:1
7
8
GND
T2:2
100p
C122
100p
C119
*
R127
4.7K
R149
5.6K
R144
1u
C81
100p
C121
*
Q11
.1u
C91
100K
R146
SB1
D31
100p
C120
100p
C118
100p
C117
.0022u
C141
22K
R124
2R
R147
4.7u
C88
1u
C73
.0022u
C142
2.2u
C64
22K
R111
.47u
C66
.47u
C67
.47u
C68
.47u
C65
100K
R114
IN+
3
IN-
4
SD
1
BYP
2
VO+
5
VO-
8
GND
7
V
D
D
6
TH
9
TPA6203
U11
100K
R142
.47u
C42
.47u
C41
180K
R70
470K
R71
470K
R69
.47u
C53
470K
R84
TP20
TP28
TP29
PAD6
100K
R57
100K
R63
BSS
Q7
RED
DTMF
D8
470K
R67
SD1
D18
1.2M
R68
.1u
C46
22p
C50
22p
C51
4.7M
R79
*
Y2
.47u
C47
100K
R75
*
R73
OPTIONAL
PAD3
Q1
12
Q2
13
Q4
15
Q3
14
IN+
1
GS
3
VRef
4
IN
H
5
ESt
18
IN-
2
P
W
D
N
6
StD
17
O
S
C
2
9
O
S
C
1
8
TOE
11
V
S
S
1
0
St/GT
19
VDD
20
NC1
7
NC2
16
*
U7
*
R8
GREEN
*
D3
*
R128
*
Q8
TP21
*
D30
JP7:2
JP7:1
JP7:3
*
C57
*
R154
*
R90
1
2
3
4
5
6
T1:1
7
8
GND
T1:2
-
+
6
5
7
*
U9:2
-
+
2
3
1
8
4
*
U9:1
*
R91
*
R93
*
R96
*
R89
*
C56
*
C134
*
C55
11
33
22
*
RP1
TP25
*
R98
*
TZ3
*
TZ4
*
2KV
C124
*
L3
*
RESETTABLE FUSE
F4
*
2KV
C89
*
L4
*
RESETTABLE FUSE
F3
MODE IN
J4:1
J4:2
EXT MIC HI
J4:3
EXT MIC GND
J4:4
NU
J4:5
EXT MIC PWR
J4:6
PTT
J4:7
SPEAKER-
J4:8
J4:9
NU
J4:10
J4:11
J4:12
*
C77
B25
Q1
G
S
D
5460
Q2
*
Q5
B25
Q6
*
Q9
4001
Q10
*
RJ9
TP32
P
1
-3
1
6
P5-1
13
V
D
D
4
2
P3-1
11
P3-5
9
P4-5
4
P4-7
3
P2-6
37
P3-7
8
P2-7
47
P3-6
28
P5-2
24
P3-4
27
P1-2
20
VSS
18
P
2
-4
_
A
R
E
F
3
6
P0-7
43
TXI
TXI
P0-1
46
RXI
RXI
P2-5
48
P0-3
45
P0-6
41
P4-1
6
P0-5
44
P2-3
1
P2-1
2
P0-0
38
P0-4
40
RXO
RXO
P0-2
39
TXO
TXO
P2-0
34
P1-4
21
P1-6
22
SMP
7
P2-2
35
P1-1
17
P1-0
19
XRES
29
P3-0
25
P5-0
23
P3-2
26
P5-3
12
P3-3
10
P4-3
5
P1-5
15
P1-7
14
P4-6
33
P4-4
32
P4-0
30
P4-2
31
PAD
0
U6
GND1
GND2
GND3
10
1
+
-
M LEAD RELAY
K1:1
3
2
4
K1:2
8
9
7
K1:3
1
2
JP15
1
2
JP14
JP
8
:2
JP
8
:1
JP
8
:3
PA
*
RJ11
*
RJ12
*
RJ4
*
RJ5
*
RJ2
*
RJ3
TP24
TP22
TP23
E LEAD
J7:1
GND
J7:2
PTT OC
J7:3
TX OUT A
J7:4
LINE IN A
J7:5
LINE IN B
J7:6
TX OUT B
J7:7
M LEAD NO
J7:8
WIPER
J7:9
N/C
J7:10
J7:11
J7:12
1
2
JP1
*
RJ7_21
*
RJ7_23
5V
12V
*
R192
*
R193
*
C155
VAN6V
VAN6V
VAN6V
VAN6V
VAN6V
VAN6V
1u
C156
1u
C157
1
2
)
JP12
3
4
5
6
1
2
)
JP10
3
4
5
6
JP5:1
JP5:2
JP5:3
JP5:4
1
2
JP13
3
4
5
6
JP4:1
JP4:2
JP4:3
JP4:4
JP16:1
JP16:2
JP16:3
)
JP3:1
JP3:2
JP3:3
470R
R9
1K
R191
2
DN
3
UP
1
SW1
*
NPO
C130
*
NPO
C129
SPKR_OPT_1
SPKR_OPT_2
SPKR_MIC_TELCO_DRIVER
*
RJ24
*
RJ25
CS
1
SO
2
SI
5
SCK
6
VCC
8
HOLD
7
WP
3
GND
4
*
U2
CS
1
SO
2
SI
5
SCK
6
VCC
8
HOLD
7
NC
3
GND
4
26DF081A
U3
*
RJ6
*
RJ7
0R
RJ10
1K
R186
SB1
D35
SB1
D36
*
D37
SB1
D38
SQUELCH_NOISE
*
RJ26
X
1
1
X
2
2
Vbackup
3
CS
4
G
N
D
5
DIN
6
DOUT
7
SCLK
8
SQW/INT
9
V
C
C
1
0
*
U14
*
Y3
*
C158
5V
*
RJ28
*
R197
*
R199
*
R198
11
33
22
*
RP4
1.8V
*
C159
*
C160
*
R195
*
R196
1.8V
A1
2
G
N
D
4
V
C
C
A
1
B1
7
V
C
C
B
8
A2
3
D
IR
5
B2
6
*
U17
A1
2
G
N
D
4
V
C
C
A
1
B1
7
V
C
C
B
8
A2
3
D
IR
5
B2
6
*
U18
5V
3.3V
5V
1.8V
1A
2
G
N
D
4
1OE
1
2OE
7
V
C
C
8
1B
3
2A
5
2B
6
*
U21
1A
2
G
N
D
4
1OE
1
2OE
7
V
C
C
8
1B
3
2A
5
2B
6
*
U19
1A
2
G
N
D
4
1OE
1
2OE
7
V
C
C
8
1B
3
2A
5
2B
6
*
U20
GPIO01
1
GPIO02
2
GPIO03
3
GPIO04
4
GPIO05
5
GPIO06
6
G
N
D
7
V
C
C
8
BOOT
9
RESET
10
CTS
11
RTS
12
RXD
13
TXD
14
LPO
15
GPIO07
16
*
U16
5V
5V
5V
*
R202
*
R203
*
R204
*
R205
5V
5V
5V
RTS
CTS
P1_7
P1_5
P1_7
P1_5
PROG_IN
PROG_OUT
PROG_IN
PROG_OUT
0R
R200
BT_SEL
BT_SEL
RTC_INT
*
RJ27
RTC_INT
5V
0R
RJ29
0R
RJ30
RTS
CTS
3.3V
PROG IN
TP45
P3:1
P3:2
P3:3
P3:4
P3:5
P3:6
P3:7
P3:8
P3:9
P3:10
*
COIN 3V
BAT1
*
Q24
*
Q23
100K
R207
5V
*
R208
*
R7
*
C161
*
R209
5V
*
C162
*
R210
5V
*
C163
*
R211
5V
*
C164
*
R212
5V
*
Q25
IN2
7
NC
4
IN1
8
OUT2
2
G
N
D
5
OUT1
1
S
D
6
FB
3
*
U15
FOR PARTI ONLY
UNBALANCED OUT
10K
R116
10K
R117
10K
R118
10K
R110
47K
R145
10u
C23
/\
\/
/\
\/
36K
RC7
*
R95
.47u
C63
*
C62
*
R188
1K
R187
330R
R104
*
R133
*
C54
1K
R31
1K
R49
*
R174
*
R92
VALIDATE
*
R190
*
R183
*
R184
LINE_IN_A
FOR PARTI ONLY
UNBALANCED OUT
*
R179
*
R201
AP
CJS
2010-04-26
AWS
2016-05-05
G-3
1 of 1
7705
MIDIAN ELECTRONICS, INC.
DATE:
DESIGN:
UPD BY:
REV:
APPR
REV
SHEET
PROJECT NUMBER
DOCUMENT NAME
SCHEMATIC
Copyright © 2016
VAE-10
*
R213
*
R214
*
R217
*
R218
*
R189
A2
A5
A4
A7
A6
A3
A1
A8
AUD
100K
R206
100K
R185
*
R194
SR_PTT_1
*
R224
SR_CAC_1
*
R225
*
R219
SR_COR_1
*
R222
*
R227
SR_PTT_2
*
R233
SR_CAC_2
*
R229
*
R234
SR_COR_2
*
R230
SR_SCLK
SR_SIN
SR_RCLK_1
SR_RCLK_2
*
R175
*
R160
*
R161
*
R170
*
R168
*
R165
10u
C11
*
C38
*
R236
*
R237
0R
R232
0R
R235
0R
R231
0R
R228
0R
R226
0R
R221
0R
R223
0R
R216
*
R244
*
R245
*
R246
*
R247
0R
R220
0R
R215
