Parts List
Table Of Contents
- 1GENERAL
- 2SYSTEM OVERVIEW
- 2.1Transmitter Operation
- 2.2Frequency Selection
- 2.2.1Synthesizer Transmitter
- 2.3Transmitter Assembly and Adjustment
- 2.3.1Complete Transmitter Alignment
- 2.3.2Frequency Change
- 2.3.3Output Power Adjustment
- 2.3.4Deviation Setting
- 2.3.5Setting RF Alarm Thresholds
- 2.4Recommended Test Equipment List
- 2.5Repair Note
- 2.6Printed Circuitboard Numbering Convention
- 3ILLUSTRATIONS
- 4PARTS LIST
- 5REVISION HISTORY
- TRANSMITTER MAIN BOARD
- 1GENERAL
- 2THEORY OF OPERATION
- 2.1 Transmitter Main Board
- 2.1.1General
- 2.1.2Transmitter Push-To-Talk
- 2.1.2.1Microphone PTT
- 2.1.2.2PTT With Time-Out-Timer
- 2.1.2.3PTT No Time-Out-Timer
- 2.1.2.4Optional Relay
- 2.1.2.5PTT Output
- 2.1.2.6PTT Voltage Switching
- 2.1.2.7Transmitter Standby Modes
- 2.1.3Audio Circuits
- 2.1.3.1Microphone Audio
- 2.1.3.2Received Audio
- 2.1.4Channel Selection
- 2.1.4.1Synthesized Transmitter
- 2.1.4.2Crystal Controlled Transmitter
- 2.1.5Amplifier Circuits
- 2.1.6Time-Out-Timer Circuitry
- 2.2MT-3 Front Panel Board
- 2.3MT-3 Audio Processor (Version 1.6)
- 2.3.1General
- 2.3.2Power Requirements
- 2.3.3Audio Processor Turn-on Time
- 2.3.4Audio Processor Signals
- 2.3.4.1Audio Processor Outputs
- 2.3.4.2Audio Processor Modulation Output
- 2.3.4.3Audio Processor Low Frequency / Direct Mod. Output
- 2.3.4.4Audio Processor Inputs
- 2.3.4.5Audio Processor Microphone Input
- 2.3.4.6Audio Processor Balanced Input
- 2.3.4.7Audio Processor Auxiliary Input
- 2.3.4.8Audio Processor Subtone Inputs
- 2.3.4.9Audio Processor Direct Modulation Input
- 2.4MT-3 Audio Processor (Version 1.8)
- 2.4.1General
- 2.4.2Power Requirements
- 2.4.3Audio Processor Turn-on Time
- 2.4.4Audio Processor Signals
- 2.4.4.1Audio Processor Outputs
- 2.4.4.2Audio Processor Modulation Output
- 2.4.4.3Audio Processor Low Frequency / Direct Mod. Output
- 2.4.4.4Audio Processor Inputs
- 2.4.4.5Audio Processor Microphone Input
- 2.4.4.6Audio Processor Balanced Input
- 2.4.4.7Audio Processor Auxiliary Input
- 2.4.4.8Audio Processor Subtone Inputs
- 2.4.4.9Audio Processor Direct Modulation Input
- 2.5Low Frequency Modulation
- 3TRANSMITTER ALIGNMENT
- 3.1General
- 3.2Repair Note
- 3.3Printed Circuitboard Numbering Convention
- 3.4Recommended Test Equipment List
- 3.5Standard Factory Settings and Jumper Configuration
- 3.5.1MT-3 Transmitter Board Factory Configuration
- 3.5.2MT-3 Audio Processor Factory Configuration (Version 1.6)
- 3.6MT-3 Transmitter Board Alignment
- 3.6.1General
- 3.6.2MT-3 Transmitter Board Test Points
- 3.7Module Installation and Removal
- 3.8MT-3 Audio Processor Alignment (Version 1.6)
- 3.8.1General
- 3.8.2MT-3 Audio Processor Standard Deviation Adjustment
- 3.9Standard Factory Settings and Jumper Configuration
- 3.9.1MT-3 Audio Processor Factory Configuration (Version 1.8)
- 3.10MT-3 Audio Processor Alignment (Version 1.8)
- 3.10.1General
- 3.10.2MT-3 Audio Processor Standard Deviation Adjustment
- 3.11Low Frequency Modulation Configuration
- 3.11.1MT-3 Transmitters
- 3.11.2MT-3 Transmitter Audio Processors
- 3.11.3Synthesizer and Crystal Controlled Oscillator
- 3.11.4Tuning the Transmitter
- 4TRANSMITTER INTERCONNECT PIN DEFINITIONS
- 5ILLUSTRATIONS AND SCHEMATIC DIAGRAMS
- 5.1Transmitter Block Diagram
- 5.2Transmitter Main Board Electrical Assembly
- 5.2.1Transmitter Main Board Top Side Component Layout
- 5.2.2Transmitter Main Board Bottom Side Component Layout
- 5.2.3Transmitter Main Board Schematic Diagram
- 5.3Front Panel Board
- 5.3.1Front Panel Board Component Layout
- 5.3.2Front Panel Board Schematic
- 5.4Audio Processor Electrical Assembly (Version 1.6)
- 5.4.1Audio Processor Component Layout
- 5.4.2Audio Processor Schematic Diagram
- 5.5Audio Processor Electrical Assembly (Version 1.8)
- 5.5.1Audio Processor Component Layout
- 5.5.2Audio Processor Schematic Diagram
- 6PARTS LISTS
- 6.1Transmitter Main Board Parts List
- 6.1.1Transmitter Main Board Electrical Parts List
- 6.1.2Transmitter Main Board Mechanical Parts List
- 6.1.3MT-3 Front Panel Board Electrical Parts List
- 6.2MT-3 Audio Processor Parts List (Version 1.6)
- 6.2.1MT-3 Audio Processor Electrical Parts List (Version 1.6)
- 6.3MT-3 Audio Processor Parts List (Version 1.8)
- 6.3.1MT-3 Audio Processor Electrical Parts List (Version 1.8)
- 7REVISION HISTORY
- AUDIO PROCESSOR
- 1 FM AUDIO PROCESSOR
- 2 SIGNALS
- 3 THEORY OF OPERATION
- 4 ALIGNMENT
- 5 TROUBLESHOOTING - TEST EQUIPMENT NEEDED
- 6 TEMPERATURE COMPENSATION
- 7 ILLUSTRATIONS, TABLES AND SCHEMATIC DIAGRAMS
- 8 FM AUDIO PROCESSOR PARTS LIST
- 9 AM AUDIO PROCESSOR
- 9.1 Introduction
- 9.2 Performance Specifications
- 9.3 Audio Specifications
- 9.4 Audio Circuits
- 9.5 Power Requirements
- 9.6 Transmitter Standby Modes
- 9.7 Audio Circuitry
- 9.8 AM Audio Processor Factory Configuration
- 9.9 AM Audio Processor Alignment
- 9.10 AM Audio Processor Electrical Parts List
- 9.11 AM Audio Processor Component Layout
- 9.12 AM Audio Processor Schematic Diagram
- 10 REVISION HISTORY
- VHF AMPLIFIER
- 1GENERAL
- 2THEORY OF OPERATION
- 3VT-3/150 AMPLIFIER ALIGNMENT
- 3.1General
- 3.2Repair Note
- 3.3Recommended Test Equipment List
- 3.4Printed Circuitboard Numbering Convention
- 3.5Standard Factory Settings and Jumper Configuration
- 3.6VT-3/150 Amplifier Alignment
- 3.6.1General
- 3.6.2VT-3/150 Amplifier Adjustment
- 3.6.2.1General Set-Up
- 3.6.2.2Output Power Alarm (Forward Power)
- 3.6.2.3Output Power
- 3.6.2.4Antenna VSWR Alarm (Reverse Power)
- 3.6.2.5Antenna VSWR Overload
- 3.6.2.6Procedure Verification
- 4ILLUSTRATIONS AND SCHEMATIC DIAGRAMS
- 5PARTS LISTS
- 6REVISION HISTORY
- ENHANCED AM/FM SYNTHESIZER
- 1. GENERAL
- 2. THEORY OF OPERATION
- 2.1 Internal Power and Control (Digital Board)
- 2.2 Synthesizer Analog Circuitry (Analog Board)
- 2.2.1 Common Analog Board Circuitry
- 2.2.2 29 - 71.4 MHz Analog Board Circuitry
- 2.2.3 118 - 159.4 MHz Multichannel AM Analog Board Circuitry
- 2.2.4 128 - 174 MHz Analog Board Circuitry
- 2.2.5 406 - 470 MHz Analog Board Circuitry
- 2.3 Synthesizer Digital Circuitry (Digital Board)
- 2.4 Frequency Control
- 2.4.1 BCD Switch Frequency Control
- 2.4.2 Frequency Select Handle Frequency Control
- 2.5 Synthesizer Base and Frequency Increment Table
- 2.6 5.0/6.25 kHz Channelization.
- 2.7 8.333 kHz Channelization.
- 2.8 12.5 kHz Channelization.
- 3. SYNTHESIZER ALIGNMENT
- 3.1 General
- 3.2 Repair Note
- 3.3 Recommended Test Equipment
- 3.4 OS(R/T)-3(A/H) Synthesizer Factory Configuration
- 3.5 OS(R/T)-3(A/H) Synthesizer Alignment
- 3.5.1 General
- 3.5.2 Synthesizer Test Points
- 3.5.3 Synthesizer Removal and Installation
- 3.5.4 Circuit Board Removal
- 3.5.5 Frequency Adjustment and Channel Selection
- 3.5.5.1 VHF OS(R/T)-3H 29 - 71.4 MHz VCO Alignment
- 3.5.5.2 VHF OS(R/T)-3A 118 - 159.4 MHz Alignment
- 3.5.5.3 VHF OS(R/T)-3H 128 - 174 MHz VCO Alignment
- 3.5.5.4 UHF OS(R/T)-3H 406 - 470 MHz VCO Alignment
- 3.5.5.5 Reference Frequency Alignment
- 3.5.6 Jumper Configuration
- 4. ILLUSTRATIONS AND SCHEMATIC DIAGRAMS
- 4.1 OS(R/T)-3H 29 - 71.4 MHz Analog Board Diagrams
- 4.1.1 OS(R/T)-3H 29 - 71.4 MHz Analog Board Component Layout (Bottom)
- 4.1.2 OS(R/T)-3H 29 - 71.4 MHz Analog Board Component Layout (Top)
- 4.1.3 OS(R/T)-3H 29 - 71.4 MHz Analog Board Schematic Diagram
- 4.2 OS(R/T)-3A 118 - 159.4 MHz Analog Board Diagrams
- 4.2.1 OS(R/T)-3A 118 - 159.4 MHz Analog Board Component Layout (Bottom)
- 4.2.2 OS(R/T)-3A 118 - 159.4 MHz Analog Board Component Layout (Top)
- 4.2.3 OS(R/T)-3A 118 - 159.4 MHz Analog Board Schematic Diagram
- 4.3 OS(R/T)-3H 128 - 174 MHz Analog Board Diagrams
- 4.3.1 OS(R/T)-3H 128 - 174 MHz Analog Board Component Layout (Bottom)
- 4.3.2 OS(R/T)-3H 128 - 174 MHz Analog Board Component Layout (Top)
- 4.3.3 OS(R/T)-3H 128 - 174 MHz Analog Board Schematic Diagram
- 4.4 OS(R/T)-3H 406 - 470 MHz Analog Board Diagrams
- 4.4.1 OS(R/T)-3H 406 - 470 MHz Analog Board Component Layout (Bottom)
- 4.4.2 OS(R/T)-3H 406 - 470 MHz Analog Board Component Layout (Top)
- 4.4.3 OS(R/T)-3H 406 - 470 MHz Analog Board Schematic Diagram
- 4.5 OS(R/T)-3(A/H) Digital Board Diagrams
- 4.5.1 OS(R/T)-3(A/H) Digital Board Component Layout (Bottom)
- 4.5.2 OS(R/T)-3(A/H) Digital Board Component Layout (Top)
- 4.5.3 OS(R/T)-3(A/H) Digital Board Schematic Diagram
- 5. PARTS LISTS
- 5.1 OS(R/T)-3H 29 - 71.4 MHz Analog Board Electrical Parts List
- 5.2 OS(R/T)-3A 118 - 159.4 MHz Analog Board Electrical Parts List
- 5.3 OS(R/T)-3H 128 - 174 MHz Analog Board Electrical Parts List
- 5.4 OS(R/T)-3H 406 - 470 MHz Analog Board Electrical Parts List
- 5.5 OS(R/T)-3(A/H) Digital Board Electrical Parts List
- 5.6 OS(R/T)-3(A/H) Synthesizer Mechanical Parts List
- 6. REVISION HISTORY
- VHF CHANNEL DESIGNATION TABLES
VICTORIA B.C .
DANIELS
ELECTRONICS
DRAWN BY: SHANE A
DWG REV DATE: 23 APR. 99
DATE: 19 APRIL 1996
DWG No: XXXXXAT1
TITLE: AM TRANSMITTER
D
TITLE: AM TRANSMITTER SURFACE MOUNT LAYOUT TITLE: FM TX AUDIO PROCESSOR BOARD OUTLINE
ELECTRONICS
PCB 43-911918
DWG No: TXADPROAS1
TITLE: MT-3 Tx Audio Processor SM Layout
- COMPONENTS NOT INSTALLED
DWG No: TXADPROAS2B
TITLE: MT-3 Tx Audio Processor SM Layout / Jumpers
- JUMPERS INSTALLED
FB1
DWG No: TXADPROAS3B
TITLE: MT-3 Tx Audio Processor SM Designations
R2
5k POT
MICROPHONE
INPUT LEVEL
CONTROL
U1
SA5780
C8
10µF
R31
5k POT
BALANCE
INPUT LEVEL
CONTROL
R38
100k POT
BALANCE
COMPRESSION
CONTROL
U3
MC33172
R48
100k POT
AUXILIARY
INPUT LEVEL
CONTROL
R14
50k POT
SYMMETRY
ADJUST
U5
MC33174
R42
5k POT
SUBTONE
INPUT 1
CONTROL
LEVEL
U4
MC33172
R29
50k POT
DEVIATION
CONTROL
R75
50k POT
DC LEVEL
ADJUST
R36
50k POT
TCXO LEVEL
ADJUST
C45
4.7µF
C55
4.7µF
U8
MC33172
Q2
BC817
U9
TC4S66F
U10
TC4S66F
JU33
JU8
R77
20k0
R55
49k9
JU18
JU19
XY
JU31
JU28
X
Y
JU34
XY
JU35
X
Y
R79
49k9
C50
4.7µF
JU20
X
Y
JU30
Y
X
JU38
X
Y
R90
10k0
R72
0R0
R76
0R0
R9
49k9
C10
10nF
JU21
JU1
X
Y
X
Y
R74
27k4
R8
49k9
R43
11k8
JU39
R47
4k53
JU27
XY
JU4 JU29
R52
11k8
R41
49k9
R49
27k4
R50
221k
JU6
JU22
X Y
C52
4.7µF
JU7
JU16
R73
221k
C18
100nF
C49
10nF
JU14
JU10
JU9
JU15
R16
100k
R53
N/I
C17
10nF
R15
49k9
JU23
JU13 JU12
C3
4.7µF
JU2
JU11
JU17
JU3
X
Y
JU24
Y
X
JU25
JU26
X
Y
X
Y
C2
2.2µF
C7
2.2µF
C9
4.7µF
C30
4.7µF
C54
4.7µF
C5
10nF
C4
100nF
R1
604R
R7
37k4
R3
5k11
R37
49k9
R85
39k2
R20
SEL
R5
8k25
R32
470k
R33
1k50
C15
10nF
R11
49k9
R4
3k01
R6
N/I
R18
SEL
R30
681R
R10
49k9
R54
274R
R35
68k1
C36
10pF
R39
221k
R71
63k4
R46
4k53
R13
49k9
R80
68k1
R34
75k0
C12
1nF
R21
49k9
C53
10nF
R17
SEL
R88
100k
R27
13k3
R28
13k3
R89
100k
R86
22k1
R87
22k1
R25
3k48
R26
3k48
R24
5k11
R23
5k11
R84
39k2
JU44
XY
JU5
JU37
JU43
JU42
JU32
C51
100nF
R12
N/I
R51
1k50
R40
1k50
R44
0R0
X
Y
Y
X
C11
100nF
JU36
Y
X
JU40
R45
N/I
C20
100nF
R22
49k9
DWG No: TXADPROAT1
TITLE: MT-3 Tx Audio Processor Through Hole Layout
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
DWG No: TXADPROAT2
TITLE: MT-3 Tx Audio Processor Through Hole Designations
C24
10nF
C47
1.0µF
C46
100nF
C27
33nF
C48
1.0µF
C44
330nF
C38
330nF
C41
150nF
C23
22nF
C25
15nF
C26
1.0nF
C21
10nF
C22
10nF
C35
330nF
C6
10nF
C1
220nF
R19
SEL
R81
10k
C39
330nF
C37
4.7nF
C43
4.7nF
P1 P2 P4 P3
1
2
A B C D E F G H I J
5-10
5.5 Audio Processor Electrical Assembly (Version 1.8)
5.5.1 Audio Processor Component Layout
Transmitter Main Board Instruction Manual
Solder Side
Component Side
TP2
TP1
MT3APM1B
3
4
K L M N O P Q R S T
R74 C2
R75 R3
R76 B1
R77 B2
R79 A2
R80 F2
R81 O4
R84 I2
R85 I2
R86 H2
R87 H2
R88 F2
R89 G2
R90 B1
TP1 D1
TP2 E1
U1 L3
U3 N3
U4 R3
U5 N4
U8 S3
U9 S4
U10 T4
JU7 C1
JU8 A2
JU9 D1
JU10D1
JU11H1
JU12F1
JU13F1
JU14 D1
JU15D1
JU16C1
JU17H2
JU18D2
JU19B2
JU20A1
JU21B2
JU22E2
JU23F1
JU24 I2
JU25 G2
JU26 G2
JU27 D2
JU28 A2
JU29 D2
JU30 A1
JU31 A2
R9 B1
R10 H1
R11 G1
R12 D1
R13 F2
R14 O3
R15 E1
R16 D2
R17 G2
R18 H2
R19 K3
R20 I2
R21 G1
R22 G1
R23 H2
R24 H2
R25 H2
R26 H2
R27 F2
R28 F2
R29 R3
R30 H1
R31 M3
R32 I1
R33 I1
R34 G1
R35 G1
R36 S3
R37 I2
R38 N3
R39 F1
R40 E1
R41 E2
R42 Q3
R43 C2
R44 E1
R45 G1
R46 F1
R47 C2
R48 O3
R49 E2
R50 E2
R51 D1
R52 E2
R53 E1
R54 G1
R55 A2
R71 F1
R72 B1
R73 C1
C36 G1
C37 P3
C38 P4
C39 Q3
C41 P4
C43 P3
C44 Q4
C45 S4
C46 T4
C47 T4
C48 Q4
C49 C1
C50 B2
C51 T3
C52 C2
C53 G1
C54 N3
C55 T3
FB1 K3
JU1 B2
JU2 F2
JU3 J1
JU4 D2
JU5 E2
JU6 E1
C1 K4
C2 I1
C3 F1
C4 J1
C5 J2
C6 L4
C7 I1
C8 K4
C9 I2
C10 B1
C11 I1
C12 G2
C15 G1
C17 E1
C18 C1
C20 H1
C21 M4
C22 M4
C23 O4
C24 M4
C25 O4
C26 O4
C27 R4
C30 H1
C35 L4
COMPONENT LOCATION TABLE
DES LOC
DES LOC DES LOC DES LOC DES LOC DES LOC DES LOC
JU32 A2
JU33 A2
JU34 A1
JU35 A1
JU36 J1
JU37 E1
JU38 B1
JU39 C2
JU40 J1
JU42 E1
JU43 C1
JU44 C2
P1 L4
P2 O4
P3 S4
P4 R4
Q2 T3
R1 J1
R2 K3
R3 J2
R4 H1
R5 I1
R6 H1
R7 J1
R8 C1
ELECTRONICS LTD.
DANIELS
TM