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Handie-Talkie MTX Series
Motorola Handie-Talkie MTX Series Manuals
Manuals and User Guides for Motorola Handie-Talkie MTX Series. We have
2
Motorola Handie-Talkie MTX Series manuals available for free PDF download: Service Manual, Theory/Troubleshooting Manual
Motorola Handie-Talkie MTX Series Service Manual (66 pages)
Handie-Talkie Portable Radios
Brand:
Motorola
| Category:
Portable Radio
| Size: 0.49 MB
Table of Contents
Table of Contents
2
Model Numbering System
5
List of Models
6
List of Antennas and Batteries
7
Maintenance Specifications for Vhf Radios
8
Maintenance Specifications for Uhf Radios
8
MAINTENANCE SPECIFICATIONS for 800Mhz RADIOS
9
MAINTENANCE SPECIFICATIONS for 900Mhz RADIOS
9
Section I. Introduction
10
Service Aids
11
Recommended and Required Test Equipment, Service Aids, and Tools Lists
11
Recommended Test Equipment
11
Service Aids and Recommended Tools
11
Field Programming
11
Recommended Service Tools
13
Initial Equipment Control Settings
14
Test Environments, HT 1000 Radios
14
Section III. Transceiver Performance Testing
14
General
14
Setup
14
Test Mode
14
Test Frequencies, HT 1000 Radios
15
Test Environments, MT 2000, MTS 2000, and MTX Series Radios
16
Receiver Performance Checks
17
Transmitter Performance Checks
18
Error Code Displays
19
Power-Up Display Codes
19
Operational Display Codes
19
Section V. Radio Alignment Procedure
20
General
20
Reference Oscillator Alignment
22
Front-End Pre-Selector (VHF/UHF Only)
22
Rated Audio
22
Squelch
22
Standard Test Modulation (1Khz Tone)
22
Transmitter Power
23
Transmit Deviation Balance (Compensation)
23
Transmit Deviation Limit
23
Transmit Power Setting
23
Transmit Deviation Limit Reference
24
VCO Crossover Frequency
24
Signalling Deviation
24
Transmit Deviation Limit
24
Section VI. Disassembly and Reassembly
26
General
26
Disassembly to Board Level
26
Disassembly of Control Top
28
Disassembly of Front Cover Assembly
29
Reassembly
30
Section VII. Maintenance
32
Introduction
32
Preventive Maintenance
32
Safe Handling of CMOS Devices
32
Repair Procedures and Techniques
32
Nud7070A, Nud7070B, Nud7085A, and Nud7085B Vhf Transceiver Boards' Component Location Diagrams and Schematic Diagram
38
Transceiver Boards' Component Location Diagrams
39
NUE7213A, NUE7213B, NUE7231A, NUE7231B, NUE7240A, and NUE7240B UHF (403-470Mhz) TRANSCEIVER BOARDS' SCHEMATIC DIAGRAM
40
NUE7213A, NUE7213B, NUE7231A, NUE7231B, NUE7240A, and NUE7240B UHF (403-470Mhz)
41
NUE7241B UHF (450-520Mhz) TRANSCEIVER BOARD COMPONENT LOCATION DIAGRAMS
41
NUE7214A, NUE7214B, NUE7232A, NUE7232B, NUE7241A, and NUE7241B UHF (450-520Mhz) TRANSCEIVER BOARDS' SCHEMATIC DIAGRAM
42
NUE7214A, NUE7214B, NUE7232A, NUE7232B, NUE7241A, and NUE7241B UHF (450-520Mhz)
43
800Mhz TRANSCEIVER BOARDS' COMPONENT LOCATION DIAGRAMS
43
NUF6394A, NUF6394B, NUF6410A, NUF6410B, NUF6423A, and NUF6423B 800Mhz TRANSCEIVER BOARDS' SCHEMATIC DIAGRAM
44
NUF6394A, NUF6394B, NUF6410A, NUF6410B, NUF6423A, and NUF6423B 800Mhz TRANSCEIVER BOARDS
44
Component Location Diagrams
45
NUF6395B, NUF6395C, NUF6424A, and NUF6424B 900Mhz TRANSCEIVER BOARDS' SCHEMATIC DIAGRAM
46
NUF6395B, NUF6395C, NUF6424A, and NUF6424B 900Mhz TRANSCEIVER BOARDS' PARTS LIST, and NTN7089A/NTN7092A CONTROLLER BOARDS' (JT 1000/HT 1000 MODELS ONLY) COMPONENT LOCATION DIAGRAMS
47
Ntn7089A/Ntn7092A Controller Boards' (Jt 1000/Ht 1000 Models Only) Schematic Diagram
48
And Ntn7091A/Ntn7093A Controller Boards' Component Location Diagrams
49
Ntn7091A/Ntn7093A Controller Boards' Schematic Diagram
50
Universal (Accessory) Connector Pin Numbers and Signal Assignments, and
51
Ntn7620B Controller Board Component Location Diagrams
51
Ntn7620B Controller Board Schematic Diagram
52
Ntn7620B Controller Board Parts List, and Ntn7512A, Ntn7513A, Ntn7857A, and Ntn7858A Controller Boards' Component Location Diagrams
53
Ntn7512A, Ntn7513A, Ntn7857A, and Ntn7858A Controller Boards' Schematic Diagram
54
Ntn7512A, Ntn7513A, Ntn7857A, and Ntn7858A Controller Boards' Parts List, Basic Radio Exploded View Diagram, Top-Display Exploded View Diagram, and Parts List
55
Keypad Radio Exploded View Diagram and Parts List
56
Integrated Circuits with Pin-Out Names
57
Appendix
60
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Motorola Handie-Talkie MTX Series Theory/Troubleshooting Manual (56 pages)
Brand:
Motorola
| Category:
Portable Radio
| Size: 0.31 MB
Table of Contents
Table of Contents
2
Glossary of Terms
5
Introduction
6
Purpose
6
Description
6
General
6
Printed Circuit Boards and Flexible Circuits
6
Theory of Operation (Basic Functional Description)
7
Introduction
7
Radio Power
7
General
7
B+ Routing and DC Voltage Distribution
7
VHF or UHF Transceiver)
7
800 Or 900Mhz Transceiver)
7
Vhf/Uhf Transceiver Board
9
Frequency Generation Unit (See Figure 2)
9
Antenna Switch
9
Receiver Front End (See Figure 3)
9
Receiver Back End (See Figure 3)
10
Transmitter (See Figure 4)
10
800/900Mhz TRANSCEIVER BOARD
11
Frequency Generation Unit (See Figure 5)
11
Antenna Switch
11
Receiver Front End (See Figure 6)
11
Receiver Back End (See Figure 6)
12
Transmitter (See Figure 7)
12
Closed Architecture Controller
13
General (See Figure 8)
13
Digital Architecture
13
Audio Signalling Architecture
13
Open Architecture Controller
13
General (See Figure 9)
13
Digital Architecture
14
Audio Signalling Architecture
14
Theory of Operation (Detailed Functional Description)
15
Introduction
15
Radio Power
15
General
15
And a VHF or UHF Transceiver)
15
B+ Routing and DC Voltage Distribution
16
And an 800 or 900Mhz Transceiver)
16
Vhf/Uhf Transceiver
17
Frequency Generation Unit (FGU)
17
Antenna Switch
18
Receiver Front End
18
Receiver Back End
19
Transmitter
19
800/900Mhz TRANSCEIVER BOARD
20
Frequency Synthesis
20
Antenna Switch
21
Receiver Front End
21
Receiver Back End
22
Transmitter
22
Closed Architecture Controller
22
Microcomputer (U705)
22
Controller Board Circuit Operation
24
Open Architecture Controller
26
Microprocessor (U705) and Associated Circuits
27
Controller Board Circuit Operation
29
UNIVERSAL CONNECTOR (See Tables 2 and 3)
33
Troubleshooting
35
Introduction
35
Troubleshooting Procedure
35
Check Batteries
35
Alignment
35
Check Overall Transmitter Operation
35
Check Overall Receiver Operation
36
Voltage Measurement and Signal Tracing
36
Troubleshooting Charts
36
(VHF/UHF Transceiver/Closed Architecture Controller)
37
(800/900Mhz Transceiver/Open Architecture Controller)
38
(VHF/UHF Transmitter RF)
39
(800/900Mhz Transmitter RF)
40
(VHF/UHF Receiver RF)
41
(800/900Mhz Receiver RF)
42
(VHF/UHF DC Switch)
43
(800/900Mhz DC Switch)
44
(VHF/UHF Frequency Generation Unit - FGU)
45
(800/900Mhz Frequency Generation Unit - FGU)
46
(VHF/UHF Voltage Controlled Oscillator - VCO)
47
(800/900Mhz Voltage Controlled Oscillator - VCO)
48
(VHF/UHF, Closed Architecture, no Receive Audio)
49
(800/900Mhz, Open Architecture, no Receive Audio)
50
(VHF/UHF, Closed Architecture, no Transmit Deviation)
51
(800/900Mhz, Open Architecture, no Transmit Deviation)
52
(Closed Architecture Controller)
53
(Open Architecture Controller)
54
(VHF/UHF Only, VCO Crossover Frequency Tune)
55
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