Codan Radio Communications VT-3-150-SN User Manual
DANIELS
DE
ELECTRONICS
J6
J7
Installed
Not Installed
'Y' Position
'X' Position
J18
Installed
Installed
'Y' Position
'X' Position
'X' Position
'X' Position
MODE 1
MODE 2
MODE 3
MODE 4
AM/FM STANDBY MODES
STANDARD/LOW FREQUENCY MODULATION
STD MOD VER.
LF MOD VER.
DESIGN
J6
J7
J18
J7
J18
Installed
'X' Position
'X' Position
'X' Position
'X' Position
Not Installed
'Y' Position
'Y' Position
'Y' Position
'Y' Position
VICTORIA B.C.
DE
DANIELS
ELECTRONICS
Transmitter Main Board Instruction Manual
5-5
5.2.3 Transmitter Main Board Schematic Diagram
DWG REV DATE: 9 OCTOBER 1998
DWG No.: MT3TXMNM4B
Y
X
NC
NC
NC
M
M
M
M
L
L
L
X
BOARD REV: 1.7
BOARD No.: 43-920917
TP34
C23
C17-C19
LPF6,LPF7
LPF11,LPF13
Q2
C9,C11,C16
Q11
R47
U8
J35
U5
R27
J10,J11
J1,J5,J8
FSW4
F1
RELAY1
HIGHEST REFERENCE DESIGNATORS
LPF35
T1
D8
-----
-----
-----
UNUSED REFERENCE DESIGNATORS
TIME OUT TIMER
APPROX 0.8 VDC
JF3-4
JF3-3
JF3-2
JF3-1
TO
J25 PIN3
J25 PIN3
TO
JP1-7
X
Y
X
Y
X
Y
X
Y
X
Y
JP1-5
JP1-4
JP1-6
JP1-2
JP1-1
JP1-3
X
Y
Y
X
Y
X
Y
X
Y
UNDER U6
X
Y
X
Y
X
Y
TITLE: MT-3 TRANSMITTER BOARD SCHEMATIC DIAGRAM
JA5-1
JA5-2
JA5-3
JA5-4
JA2-4
JA3-1
JA4-2
JA3-2
JA4-4
JA1-4
JA3-3
JF2-3
JF2-4
JF1-4
JA3-4
JA2-3
JA4-3
JA4-1
JA2-1
JA2-2
JA1-1
JA1-2
JA1-3
APRVD:
DWG BY: MIKE GAUBE
DATE: 8 APRIL 1992
JF1-1
JF1-3
JF2-2
JF1-2
JF2-1
FRONT PANEL
N CONNECTOR
N CONNECTOR
BACKPLANE
CONNECTOR
CONNECTOR
LPF
LPF16
LPF
LPF17
LPF
LPF22
LPF
LPF5
LPF
LPF4
LPF
LPF19
LPF
LPF18
LPF
LPF20
LPF
LPF27
LPF
LPF21
LPF
LPF33
LPF
LPF12
LPF
LPF8
LPF
LPF10
LPF
LPF14
LPF
LPF26
LPF
LPF15
Z12
TX STANDBY
B12
PTT OUTPUT
B24
Z14
PTT NTO
B14
NC
D4
NC
D6
NC
D2
RLY POS
B8
NC
D8
NC
D10
NC
D12
Z10
PTT WTO
B10
DIRECT MOD
INPUT
INPUT
Z28
SQL FLAT
INPUT
INPUT
Z20
SUBTONE
INPUT #2
INPUT #2
Z24
SUBTONE
INPUT #1
INPUT #1
B22
BALANCED
INPUT #1
INPUT #1
Z18
BALANCED
INPUT #2
INPUT #2
B18
MIC IN
Z4
MIC OUT
B4
SQL DE-EMP
INPUT
INPUT
B20
Z6
+9.5V CONTINUOUS
B6
GROUND
B30
GROUND
B32
GROUND
Z32
IMC1
D14
IMC2
D16
IMC3
D18
NC
B16
NC
Z16
RX MONITOR
B28
RX DATA IN
D30
TX DATA OUT
D28
BOOTSTRAP
D32
CHANNEL SEL 0
(Least Significant Bit)
(Least Significant Bit)
D20
CHANNEL SEL 1
D22
CHANNEL SEL 2
D24
CHANNEL SEL 3
(Most Significant Bit)
(Most Significant Bit)
D26
TX AUDIO CONTROL
Z22
VSWR REVERSE
Z26
FORWARD POWER
FAIL INDICATOR
FAIL INDICATOR
B26
+10 TO +17 VOLTS
+13.8 VDC NOMINAL
+13.8 VDC NOMINAL
B2
Z2
LPF
LPF2
LPF
LPF1
LPF
LPF34
LPF
LPF35
LPF
LPF23
LPF
LPF29
LPF
LPF28
LPF
LPF25
LPF
LPF24
LPF
LPF32
LPF
LPF31
LPF
LPF30
10uF
C3
1.0uF
C4
TP5
TP2
TP4
TP3
TP1
10nF
C13
TP6
TO ALL 9.5V SUPPLY POINTS
1.0uF
C10
J9
J16
J17
TP20
TP18
TP22
TP17
TP19
TP21
NOT INSTALLED
R28
9.5V
27K4
R2
BYD17J
D2
BYD17J
D1
J3
1
9
8
7
4
3
2
10
RELAY1
J4
BAS16
D7
10R0
R1
27K4
R4
1K0
R3
TP27
2
3
1
MC33172
a
U1
4
5
6
7
8
MC33172
b
U1
BYD17J
D3
27K4
R6
BYD17J
D4
BAS16
D8
10R0
R5
1K0
R7
27K4
R8
TP28
10nF
C6
100K0
R10
221K0
R9
9.5V
9.5V
TP26
8
9
10
MC14081
c
U2
13
12
11
MC14081
d
U2
100nF
C8
9.5V
5
6
4
14
7
MC14081
b
U2
1
2
3
MC14081
a
U2
9.5V
G
D
S
D15N06V
Q9
E
B
C
BC807-25
Q8
10K0
R18
TP11
E
B
C
BC817-25
Q1
E
B
C
BC817-25
Q3
9.5V
9.5V
E
B
C
BC817-25
Q4
BYD17J
D5
BYD17J
D6
J6
TP7
G
D
S
D5P06V
Q5
J21
Vin
Error
Sd
Gnd
Vout
Sense
5V Tap
FB
8
5
3
4
5
3
4
1
2
6
7
2
6
7
LP2951
U6
15K0
R30
9.5V
10nF
C14
82K5
R29
4.7uF
C15
J15
J13
J14
E
B
C
PZT2222A
Q10
1K0
R26
27K4
R25
J12
9.5V
TO ALL 13.8V SUPPLY POINTS
13.8V
10uF
C1
1.0uF
C2
TP8
TP15
13.8V
TP9
TP16
TP14
1K0
R17
J18
10K0
R16
TP23
TP24
TP10
9.5V
9.5V SWITCHED
J7
TO ALL 9.5V SWITCHED
SUPPLY POINTS
SUPPLY POINTS
TO ALL 9.5V PTT SWITCHED
SUPPLY POINTS
SUPPLY POINTS
9.5V PTT SWITCHED
9.5V PTT SWITCHED
MICROPHONE INPUT
BALANCED
INPUT
INPUT
+9.5V
+8.0V SWITCHED
TONE/DIGITAL
INPUT
INPUT
AUDIO OUTPUT
SUBTONE #1 INPUT
SUBTONE #2 INPUT
DIRECT MODULATION
INPUT
INPUT
AUDIO
SUBTONE #2
OUTPUT
OUTPUT
TOT
INPUT
INPUT
TOT
OUTPUT
OUTPUT
GND
GND
MT-3 AUDIO
PROCESSOR
13.8 V
QUALIFIED
PTT
PTT
PTT
GND
CONTROL
2
1
6
4
5
3
AUDIO XFMR
T1
10nF
C12
27K4
R13
27K4
R12
27K4
R11
10K0
R19
10K0
R15
1
2
10K0
R14
68K1
R20
10K0
R23
68K1
R24
100nF
C5
10nF
C7
J20
J22
J23
J24
J19
J25
+9.5V INPUT
+9.5V OUTPUT
LED ENA
GROUND
MIC PTT WTO
MIC PTT NTO
MIC AUDIO
MT-3 FRONT PANEL BOARD
RX AUDIO
SPARE
+13.8V
GROUND
RX MON
13.8V
RF IN
RF OUT
+9.5V
+13.8V
ENA
GND
FOR
REV
OR
MT-3 VHF/UHF AMPLIFIER MODULE
AUDIO
IN
XXXX
LPF
LPF3
F1
OPTIONAL
RLY NEG
Z8
68K1
R22
9.5V
E
B
C
BC817-25
Q6
TP30
TP29
G
D
S
D5P06V
Q7
10K0
R21
100nF
C22
221k
R39
C23
100nF
100nF
221k
R44
221k
R45
221k
R46
221k
R43
15k0
R41
27k4
R35
68k1
R33
221k
R31
1k00
R32
221k
R36
27k4
R34
100k
R38
1k00
R37
OPT
R42
J26
J27
J32
J28
100nF
C21
3
2
8
4
1
a
MC33172
U7
Q11
BC807-25
SET
RESET
IN1
OUT1
OUT2
BYP
CLK INH
VSS
VDD
MONO
OSC INH
DEC
D
C
B
A
MC14536B
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
15
14
13
12
11
10
9
U8
TP25
5
6
7
MC33172
U7b
9.5V
4.7uF
C20
1k00
R47
10k0
R40
J29
J31
J35
J33
J34
TO ALL TOT 9.5V
TOT 9.5V
TOT 9.5V
TOT 9.5V
TP12
TP31 TP32
TP13
TP33
TP34
GROUND
Z30
OC-3 CRYSTAL CONTROL MODULE
P1-18 P1-20 P1-12 P1-19 P1-11 P2-2 P1-17 P1-9
P3-2
P3-1
P2-5
P1-10
P1-7
P1-3
P2-3
P1-16
P1-8
P1-15
P1-14
P1-6
P1-13
P1-5
P1-4
P1-2
P1-1
P2-1
P2-4
P2-6
RF
OUTPUT
OUTPUT
REFERENCE
INPUT
INPUT
OS-3 SYNTHESIZER
OR
0 1
2
3
4
5
6
7
8
8
9
MSD
FSW1
1
3
5
7
2
4
6
8
9
11 13 15 10 12 14 16
U3
MMAD1108
MMAD1108
7
5
3
1
8
6
4
2
15 13 11 9
16 14 12 10
U4
MMAD1108
MMAD1108
0 1
2
3
4
5
6
7
8
8
9
FSW2
0 1
2
3
4
5
6
7
8
8
9
FSW3
0 1
2
3
4
5
6
7
8
8
9
LSD
FSW4
9.5V SWITCHED
J2
PTT
TOT INPUT
TOT OUTPUT
QUALIFIED PTT
QUALIFIED PTT
JP1-7
JP1-7
2.2 Vdc
9.4Vdc
2.9 Vdc
2.9Vdc