Motorola MCX600E Manuals

Manuals and User Guides for Motorola MCX600E. We have 1 Motorola MCX600E manual available for free PDF download: Service Manual

Motorola MCX600E Service Manual

Motorola MCX600E Service Manual (105 pages)

Brand: Motorola | Category: Radio | Size: 1.59 MB

Table of Contents

Chapter 1 Introduction

11
- Computer Software Copyrights
  2
- Exposure to Radio Frequency Energy
  3
- Mobile Antenna Installation
  3
- Safety Information
  3
- Introduction
  9
  - Table of Contents
    11
- After Warranty Period
  13
- How to Use this Manual
  13
- Scope of Manual
  13
- Warranty and Service Support
  13
- Warranty Period
  13
- Piece Parts
  14
  - Speciﬁcations
    15
  - Model Chart
    19
Chapter 3 Maintenance

21
- Remove the Top Cover
  24
- Assemble Radio
  25
- Replace the Top Cover and Control Head
  25
- Exploded View Diagrams and Parts
  26
- Service Aids
  27
- Test Equipment
  28
- Radio Tuning Procedure
  29
- PA Bias Voltage
  30
- Transmitter Power
  31
  - Reference Oscillator
    32
  - Speakers
    33
- Transmit Voltage Limit
  34
- Transmit Deviation Limit
  35
Chapter 4 Theory of Operation

37
- Cables
  39
- Voltage Regulators
  39
- Electronic On/Off
  40
- Hook Rss
  41
- Mechanical On/Off
  41
- Microprocessor Clock Synthesizer
  42
- Serial Peripheral Interface (Spi)
  42
- General Purpose Input/Output
  43
- Normal Microprocessor Operation
  43
- Other
  43
- Speb Serial Interface
  43
- Electrically Erasable Programmable Memory (Eeprom)
  45
- Flash Eeprom
  45
- Flash Electronically Erasable Programmable Memory
  45
- Static Random Access Memory (Sram)
  46
- Audio Ground
  47
- Audio Signalling Filter IC (Asfic)
  47
- Controller Board Audio and Signalling Circuits
  47
- MIC Input Path
  47
- Transmit Audio Circuits
  47
- External MIC Path
  48
- Ptt Sensing and Tx Audio Processing
  49
- Transmit Signalling Circuits
  49
- Dual Tone Multiple Frequency (Dtmf) Data
  50
- High Speed Data
  50
- Sub-Audible Data (Pl/Dpl)
  50
- Receive Audio Circuits
  51
- Squelch Detect
  51
- Audio Processing and Digital Volume Control
  52
- Filtered Audio
  53
- Receive Signalling Circuits
  53
- Alert Tone Circuits
  54
- Sub-Audible Data (Pl/Dpl) and High Speed Data Decoder
  54
- Mhz Specific Circuit Description
  55
- Mixer and Intermediate Frequency (If) Section
  55
- Receiver Front-End
  55
- If IC (U)
  56
- Power Controlled Stage
  56
- Transmitter Power Ampliﬁer (Pa) 5-25W
  56
- Antenna Switch
  57
- Directional Coupler
  57
- Pa Stages
  57
- Harmonic Filter
  58
- Power Control
  58
- Fractional-N Synthesizer (U)
  59
- Frequency Synthesis
  59
- Synthesizer Operation
  60
- Voltage Controlled Oscillator (Vco)
  60
Chapter 5 Pcb/Schematic Diagrams and Parts Lists

63
- Mhz Main Board Component Side
  65
- Controller Parts List
  68
- Supply Voltage Parts List
  72
- Power Control Parts List
  74
- Mhz Synthesizer Schematic Diagram
  77
- Synthesizer Parts List
  78
- Mhz Rx-Fe Schematic Diagram
  81
- Rx-Fe Parts List
  82
- Mhz Rx-If Schematic Diagram
  83
- Rx-If Parts List
  84
Appendix B.1

91
- General
  93
- Overview
  93
- Power Supplies
  93
- Theory of Operation
  93
- ON/OFF Hook Control
  94
- Power on / off
  94
- PTT Button
  94
- Keypad and Top Keys
  95
- Status LED and Back Light Circuit
  95
- Connections to the Radio
  96
- Liquid Crystal Display (LCD)
  96
- Microphone Amplifier
  96
- Electrostatic Transient Protection
  97

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