Motorola Professional Radio Manuals

Manuals and User Guides for Motorola Professional Radio. We have 1 Motorola Professional Radio manual available for free PDF download: Service Manual

Motorola Professional Radio Service Manual (109 pages)

Brand: Motorola | Category: Portable Radio | Size: 2.38 MB

Safety and General Information
3
Operational Cautions
5
Operational Warnings
5
Safety and General
5
Fmrc Approved Equipment
6
Intrinsically Safe Radio Information
6
Do Not Substitute Options or Accessories
7
Repair of Fmrc Approved Products
7
Table of Contents
9
Chapter 1 Introduction

17
Scope of Manual

17
Warranty and Service Support

17
- Warranty Period
  17
- Return Instructions
  17
- After Warranty Period
  17
Related Documents

18
Technical Support

18
- Piece Parts Availability
  18
Radio Model Chart and Specifications

19
Radio Model Information

19
Chapter 2 Theory of Operation

21
Introduction

21
Radio Power Distribution

21
- Figure 2-1:DC Power Distribution Block Diagram
  21
Keypad

22
- Figure 2-2:Keypad Block Diagram
  22
Controller Board

23
- Figure 2-3:Controller Block Diagram
  23
  - MCU Digital
    23
  - Real Time Clock
    24
  - Circuit Description
    24
  - Figure 2-4:RTC Circuit
    24
  - MODB/VSTBY Supply
    24
  - Audio/Signaling
    25
UHF Transmitter

25
- Figure 2-5:UHF Transmitter Block Diagram
  25
  - Power Amplifier (PA)
    25
- Power Amplifier
  25
  - Antenna Switch
    26
  - Harmonic Filter
    26
  - Antenna Matching Network
    26
  - Power Control Integrated Circuit (PCIC)
    26
  - Temperature Cut Back Circuit
    26
UHF Receiver

26
Synthesizer

29
Voltage Control Oscillator (VCO)

30
- Figure 2-8:UHF Synthesizer Block Diagram
  30
- Figure 2-9:UHF VCO Block Diagram
  31
VHF Transmitter

32
- Figure 2-10:VHF Transmitter Block Diagram
  32
  - Power Amplifier
    32
  - Receiver Front-End
    34
  - Automatic Gain Control (AGC)
    35
  - Receiver Back-End
    35
  - Frequency Generation Circuit
    36
  - Voltage Control Oscillator (VCO)
    37
- Figure 2-14:VHF VCO Block Diagram
  38
Low Band Transmitter

39
Low Band Receiver

40
- Figure 2-16:Low Band Receiver Block Diagram
  41
Synthesizer

43
- Figure 2-18:Low Band Synthesizer Block Diagram
  44
Voltage Control Oscillators (VCO)

44
- Receive VCO
  44
- Transmit VCO
  44
- Buffer
  44
- Diplexer/Output Filters
  44
- Prescalar Feedback
  45
800 Mhz Transmitter

45
- Power Amplifier
  45
- Figure 2-19:800 Mhz Transmitter Block Diagram
  45
- Antenna Switch
  46
- Harmonic Filter
  46
- Power Control Integrated Circuit (PCIC)
  46
800 Mhz Receiver

47
Trunked Radio Systems

52
- Privacy Plus Trunked Systems
  52
- LTR™ Trunked Systems
  52
- MPT Trunked Systems
  52
- Passport™ Trunked Systems
  53
900 Mhz Transmitter

54
- Figure 2-24:Transmitter Block Diagram
  54
  - Power Amplifier
    55
  - Antenna Switch
    55
  - Harmonic Filter
    55
  - Power Control Integrated Circuit (PCIC)
    55
900 Mhz Receiver

56
- Figure 2-25:900 Mhz Receiver Block Diagram
  56
  - Receiver Front-End
    56
  - Receiver Back-End
    57
  - Hear Clear IC
    57
  - Automatic Gain Control Circuit
    58
Frequency Generation Circuitry

59
- Figure 2-26:Frequency Generation Unit Block Diagram
  59
900 Mhz Synthesizer

60
- Figure 2-27:Synthesizer Block Diagram
  60
900 Mhz Voltage Control Oscillator (VCO)

61
- Figure 2-28:VCO Block Diagram
  61
Chapter 3 Maintenance

63
Introduction

63
Inspection

63
- Cleaning
  63
Safe Handling of CMOS and LDMOS

64
General Repair Procedures and Techniques

64
Recommended Test Tools

66
Replacing the Circuit Board Fuse

67
- Figure 3-1:Uhf/Vhf/Low Band/800Mhz/900Mhz Circuit Board Fuse Locations
  68
Removing and Reinstalling the Circuit Board

69
- Figure 3-2:Circuit Board Removal and Reinstallation
  69
Power up Self-Test Error Codes

69
UHF Troubleshooting Charts

71
VHF Troubleshooting Charts

77
Low Band Troubleshooting Charts

83
800 Mhz Troubleshooting Charts

89
Passport Trunking Troubleshooting Chart

95
Keypad Troubleshooting Chart

96
900 Mhz Troubleshooting Charts

97
Chapter 4 Schematic Diagrams, Overlays, and Parts Lists

103
Introduction

103
- Notes for All Schematics and Circuit Boards
  103
Flex Layout

104

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Motorola Professional Radio Manuals

Motorola Professional Radio Service Manual (109 pages)

Table of Contents

Chapter 1 Introduction

Scope of Manual

Warranty and Service Support

Related Documents

Technical Support

Radio Model Chart and Specifications

Radio Model Information

Chapter 2 Theory of Operation

Introduction

Radio Power Distribution

Keypad

Controller Board

UHF Transmitter

UHF Receiver

Synthesizer

Voltage Control Oscillator (VCO)

VHF Transmitter

Low Band Transmitter

Low Band Receiver

Synthesizer

Voltage Control Oscillators (VCO)

800 Mhz Transmitter

800 Mhz Receiver

Trunked Radio Systems

900 Mhz Transmitter

900 Mhz Receiver

Frequency Generation Circuitry

900 Mhz Synthesizer

900 Mhz Voltage Control Oscillator (VCO)

Chapter 3 Maintenance

Introduction

Inspection

Safe Handling of CMOS and LDMOS

General Repair Procedures and Techniques

Recommended Test Tools

Replacing the Circuit Board Fuse

Removing and Reinstalling the Circuit Board

Power up Self-Test Error Codes

UHF Troubleshooting Charts

VHF Troubleshooting Charts

Low Band Troubleshooting Charts

800 Mhz Troubleshooting Charts

Passport Trunking Troubleshooting Chart

Keypad Troubleshooting Chart

900 Mhz Troubleshooting Charts

Chapter 4 Schematic Diagrams, Overlays, and Parts Lists

Introduction

Flex Layout

Related Products

Motorola Categories