Motorola GP644 Manuals

Manuals and User Guides for Motorola GP644. We have 3 Motorola GP644 manuals available for free PDF download: Detailed Service Manual, User Manual, Specifications

Motorola GP644 Detailed Service Manual (416 pages)

COMPACT PROFESSIONAL PORTABLE RADIO

Brand: Motorola | Category: Portable Radio | Size: 22.38 MB

Table of Contents

13
- Safety Information
  7
- Chapter 1 INTRODUCTION
  
  15
  - Scope of Manual
    15
  - Warranty and Service Support
    15
    
    Warranty Period and Return Instructions
    15
    
    After Warranty Period
    15
    
    European Radio Support Centre (ERSC)
    16
    
    Parts Identification and Ordering
    16
    
    Technical Support
    17
    
    Further Assistance from Motorola
    17
    
    Related Documents
    17
  - Radio Model Information
    18
- Chapter 2 MAINTENANCE
  
  19
  - Introduction
    19
  - Preventive Maintenance
    19
    
    Inspection
    19
    
    Cleaning
    19
  - Safe Handling of CMOS and LDMOS
    20
  - General Repair Procedures and Techniques
    20
- Chapter 3 SERVICE AIDS
  
  25
  - Recommended Test Tools
    25
  - Test Equipment
    27
  - Replacing the Circuit Fuse Board
    29
  - Removing and Reinstalling the Circuit Board
    30
  - Service Aids
    31
- Chapter 4 POWER up SELF-TEST
  
  33
  - Error Codes
    33
Section 1

37
- Chapter 1 THEORY of OPERATION
  39
  - Overview
    39
  - Radio Power Distribution
    39
  - Controller Board
    40
    
    General
    40
    
    Digital Architecture
    41
    
    Keypad
    42
- Chapter 2 TROUBLESHOOTING CHARTS
  43
Section 2

149
- Chapter 1 THEORY of OPERATION
  151
  - Introduction
    151
  - Transmitter
    151
    
    General
    151
  - Receiver
    153
    
    Receiver Front-End
    153
    
    Receiver Back-End
    154
    
    Automatic Gain Control Circuit
    155
  - Reciever (for Models with PCB 8415533H02)
    156
    
    Receiver Back-End
    157
    
    Automatic Gain Control Circuit
    158
  - Frequency Generation Circuitry
    159
    
    Synthesizer
    159
    
    Voltage Controlled Oscillator (VCO)
    161
- Chapter 2 TROUBLESHOOTING CHARTS
  163
  - Introduction
    163
    
    Troubleshooting Chart for Receiver (Sheet 1 of 2)
    164
    
    Troubleshooting Chart for Receiver (Sheet 2 of 2)
    164
    
    Troubleshooting Chart for Transmitter
    168
    
    Troubleshooting Chart for Controller
    171
- Vhf Pcb/Schematics and Parts Lists
  173
  - Notes for All Schematics and Circuit Boards
    173
  - VHF Pcb/Schematic Diagrams and Radio Parts List (RF Board)
    177
    
    8404055G05/G06/G07/G09
    189
    
    8415533H02
    195
    
    8471021L01
    211
    
    8486062B12
    227
Section 3

239
- Chapter 1 THEORY of OPERATION
  241
  - Introduction
    241
  - Transmitter
    241
    
    General
    241
  - Receiver
    243
    
    Receiver Front-End
    244
    
    Receiver Back-End
    245
    
    Automatic Gain Control Circuit
    246
  - Frequency Generation Circuitry
    247
    
    Synthesizer
    247
    
    Voltage Controlled Oscillator (VCO)
    249
- Chapter 2 TROUBLESHOOTING CHARTS
  251
  - Introduction
    251
    
    Troubleshooting Chart for Receiver (Sheet 1 of 2)
    252
    
    Troubleshooting Chart for Receiver (Sheet 2 of 2)
    252
    
    Troubleshooting Chart for Transmitter
    254
    
    Troubleshooting Chart for Synthesizer
    255
    
    Troubleshooting Chart for Controller
    257
  - Notes for All Schematics and Circuit Boards
    259
  - Allocation of Schematics and Circuit Boards
    260
    
    UHF1 (403-470Mhz)
    260
    
    UHF Narrow Band (450-470Mhz)
    262
    
    8404077G01
    265
    
    8404077G05/G06/G07/G09
    279
    
    8415563H06
    291
    
    8471441L01
    305
  - UHF Narrow Band Pcb/Schematic Diagrams and Radio Parts List (RF Board)
    319
Theory of Operation

337
- Chapter 1 THEORY of OPERATION
  339
  - Introduction
    339
  - Transmitter
    339
    
    General
    339
  - Receiver
    341
    
    Receiver Front-End
    341
    
    Receiver Back-End
    342
    
    Automatic Gain Control Circuit
    343
  - Frequency Generation Circuitry
    344
    
    Synthesizer
    344
    
    Voltage Controlled Oscillator (VCO)
    346
- Troubleshooting Charts
  349
  - Introduction
    349
  - Notes for All Schematics and Circuit Board
    357
  - Allocation of Schematics and Circuit Boards
    358
    
    UHF2 (450-527Mhz)
    358
    
    8404102G03/G04/G05/G07/G08
    358
    
    8416243H04
    381
    
    8471475L01
    395
    
    8485641Z02
    409

Motorola GP644 User Manual (24 pages)

Professional Radio

Brand: Motorola | Category: Portable Radio | Size: 0.22 MB

Table of Contents
3
Computer Software Copyright
4
Radio Overview

5
- Operation and Control Functions
  5
  - Radio Controls
    5
  - Programmable Buttons
    6
  - Audio Signal Tones
    7
Getting Started

9
- Battery Information
  9
Accessory Information

11
- Attaching the Battery
  11
- Removing the Battery
  11
- Attaching the Antenna
  12
- Removing the Antenna
  12
Radio Operation

13
- Turning the Radio On-Off
  13
- Adjusting the Radio's Volume
  13
- Radio Registration
  14
Radio Calls

15
- Making a Call
  15
- Contact List
  15
- User Absent
  15
- Dedicated Calls
  16
- Ending a Call
  16
- Cancelling a Call
  16
- Receiving a Call
  17
  - Receiving a Call on a OACSU System
    17
  - Receiving a Call on a FOACSU System
    17
- Missed Calls
  18
- Call Diversion
  19
- Emergency Calls
  20
Personality

21
- Mpt
  21
- Talkgroup
  22
  - Fixed and Dynamic Groups
    22
- Conventional Mode
  23
- Personality Selection
  24

Motorola GP644 Specifications (2 pages)

Motorola Two-Way Radio User Manual

Brand: Motorola | Category: Two-Way Radio | Size: 0.7 MB

Motorola Categories

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Motorola GP644 Manuals

Motorola GP644 Detailed Service Manual (416 pages)

Table of Contents

Table of Contents

Chapter 1 INTRODUCTION

Chapter 2 MAINTENANCE

Chapter 3 SERVICE AIDS

Chapter 4 POWER up SELF-TEST

Section 1

Section 2

Section 3

Theory of Operation

Motorola GP644 User Manual (24 pages)

Table of Contents

Radio Overview

Getting Started

Accessory Information

Radio Operation

Radio Calls

Personality

Motorola GP644 Specifications (2 pages)

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Motorola Categories