Daniels Electronics MT-3 Series, Инструкция по эксплуатации

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MT-3 FM Transmitter Mainboard Instruction Manual
IM20-MT3TXMN
Illustrations and Schematics
36
mt-3 fm tranSmItter BloCK dIaGram
DATE: 25 JUN 03
TITLE: MT-3 TRANSMITTER BLOCK DIAGRAM
DRAWN BY: S. EARTHY
REV DATE: 07 MAR 05
DWG No: B0286-04
1
11
21
2
12
22
3
13
23
4
14
24
5
15
25
6
16
26
7
17
27
8
18
28
9
19
29
10
20
30
A
LED ENA
X
X
X
Y
Y
Y
Y
X
X
Y
B20
J16
RELAY1
J2
12
13
11
U2d
U2c
D32
D20
+9.5VDC
+9.5 VDC
2
1
3
U2a
J17
JP1-2
+9.5 VDC
Z20
B4
Z4
B22
Z18
B18
Z24
Z28
B12
Z12
B10
Z10
B14
Z14
B24
D12
D2
B8
Z8
D8
D10
J1
D30
D28
D22
D24
D26
Z22
B26
Z26
Z30
Z32
B30
D6
D4
Y
X
J4
X
Y
+9.5V
+9.5V OUTPUT
GROUND
MIC PTT WTO
MIC PTT NTO
MIC AUDIO
MT-3 FRONT PANEL BOARD
RX AUDIO / +13.8V
B2
Z2
+13.8VDC B6
Z6
OS-3 SYNTHESIZER MODULE
R
FRONT PANEL
N CONNECTO
RF IN
RF OUT
+9.5V
+13.8V
FOR REV
ENA
MT-3 VHF/UHF AMPLIFIER MODULE
OR
LED ENA
+9.5VDC
PTT TRIGGER
PTT WTO
TRIGGER
+9.5VDC
SWITCHING
CIRCUITRY
+9.5VDC
VSWR REVERSE
FORWARD POWER FAIL
INDICATOR
10-17 VOLTS
+ 13.8 VDC NOMINAL
BACKPLANE
CONNECTOR
GROUND
GROUND
GROUND
GROUND
RX DATA IN
TX DATA OUT
BOOTSTRAP
CHANNEL SEL 0 (LSB)
CHANNEL SEL 1
CHANNEL SEL 2
CHANNEL SEL 3 (MSB)
TX AUDIO CONTROL
+9.5 VDC PTT SWITCHED
J12
R25
27K4
R26
1K0
Q10
PZT2222A
J14
J15 J13
FUSE
(OPTIONAL)
+9.5 VDC CONTINUOUS
J9
SQL DE-EMP INPUT
MIC OUT
MIC IN
BALANCED INPUT
SIDE 2
600 OHMS
BALANCED INPUT
SIDE 1
SUBTONE
INPUT #1
SUBTONE
INPUT #2
SQL FLAT
INPUT
DIRECT MOD
INPUT
PTT WTO
TX
STANDBY
NO2
COMMON 2
NC2
RLY POS
RLY NEG
NC 2
NC 1
COMMON 1
PTT NTO
PTT OUTPUT
PTT OUTPUT
TX STANDBY
PTT
+ 9.5 VDC PTT SWITCHED
+ 9.5 VDC SWITCHED
J3
Y
X
J7
+ 9.5 VDC PTT
SWITCHED
+ 9.5 VDC
SWITCHED
8
10
9
1 7 9 8
10 4 2 3
MSD
LSD
T1
600¦
PTT
Y
X
J18
+ 9.5 VDC PTT
SWITCHED
+ 9.5 VDC
SWITCHED
PTT OUTPUT
8 VDC
SUPPLY
+9.5 VDC
Y
X
Y
X
Y
X
Y
X
J20
J22
J23
J19
AUDIO OUTPUT
LOW
FREQUENCY / DIRECT
MICROPHONE
INPUT
BALANCED INPUT
+9.5V
+8.0V SWITCHED
TONE/DIGITAL INPUT
SUBTONE #1 INPUT
SUBTONE #2 INPUT
DIRECT MODULATION INPUT
GND
MT-3 AUDIO
PROCESSOR
AUDIO CONTROL
AM(N/C)
AM(N/C)
AM(N/C)
AM(N/C)
MODULATION
OUTPUT
AM(N/C)
TOT INPUT
TOT OUTPUT
J35
J33
TOT INPUT
TOT OUTPUT
TIME OUT TIMER
Y
X
J25
JP1-7
B32
Default
FM
DANIELS
ELECTRONICS LTD
TM
6
7
8
0
1
3
2
4
5
9
6
7
8
0
1
3
2
4
5
9
6
7
8
0
1
3
2
4
5
9
01
3
2
4
8
C
A
B
9
D
7
6
5
F
E
PLL
CONTROL
MICROPROCESSOR
VCO
HIGH STABILITY
10/9.6 MHz REFERENCE
(± 1ppm -40°C to +60°C)
FINE FREQUENCY ADJUST
(ACCESS HOLE THROUGH
SYNTHESIZER COVER)
JU2
FREQUENCY
REFERENCE
10/9.6 MHz
SELECT
5 VDC SUPPLY
&
8VDC SUPPLY
JU1
B A
INTERNAL / EXTERNAL
REFERENCE SELECT
A
RF OUT
REFERENCE
INPUT