E.F. Johnson Company Summit DM 975x Manuals

Manuals and User Guides for E.F. Johnson Company Summit DM 975x. We have 1 E.F. Johnson Company Summit DM 975x manual available for free PDF download: Service Manual

E.F. Johnson Company Summit DM 975x Service Manual (216 pages)

9700 Series MULTI-NET II Mobile Radio

Brand: E.F. Johnson Company | Category: Radio | Size: 20 MB

Table of Contents
3
1 General Information

8
- Scope of Manual
  8
- Equipment Description
  8
  - General
    8
  - Programming
    8
  - Selectable Systems and Groups
    8
  - Front and Remote Mounting
    8
  - NPSPAC Models (800 Mhz Only)
    9
- Part Number Breakdown
  9
- Transceiver Identification
  9
- Accessories
  9
- Accessories
  10
- E.F. Johnson Multi-Net Transceivers
  11
- Product Warranty
  12
- Factory Customer Service
  12
- Factory Returns
  12
- Replacement Parts
  13
2 Installation

14
- General
  14
  - Scope of Instructions
    16
  - Performance Tests
    16
- 97Xx Front Mount Installation Components
  16
  - Transceiver Programming
    17
  - Power Source
    17
  - Selecting a Mounting Location
    17
- Transceiver Installation
  17
  - General
    17
  - Mounting Transceiver
    17
- Power Cable Installation
  17
- Accessory Cable Installation
  18
  - General
    18
  - Internal/External Speaker
    18
- Accessory Jack
  18
  - Ignition Sense
    19
  - Horn Alert
    19
  - External Public Address
    19
  - Input B (Emergency Switch)
    19
- Remote Control Unit Installation
  20
  - Setting Programming Switches
    20
- Remote Mount Installation Components
  20
  - Using Setup Mode
    22
  - Mounting Remote Control Unit
    22
- Remote Control Unit Programming Switches
  22
  - Using an External Speaker with Aremote Control Unit
    23
  - Microphone Hanger Sense
    23
- Installing Option Switch Key Caps
  23
- Installing DC Noise Filter Kit
  24
- Transceiver Mounting Tray Installation
  25
  - Description
    25
  - Installation
    25
  - Locking and Unlocking Transceiver
    25
- Locking Tray Installation Diagram
  25
- Operation
  
  26
  - Features
    26
  - Front Panel Controls & Display
    26
    
    Front Panel Controls
    26
  - Back Panel Jacks and Connectors
    27
    
    Display
    28
  - Front Panel Controls
    27
  - Front Panel Display
    28
  - Operating Modes
    29
    
    Introduction
    29
    
    Multi-Net and LTR Modes
    29
    
    Conventional Mode
    29
    
    Multi-Net and LTR System/Groups
    29
  - Scan (System and Group)
    31
    
    Introduction
    31
    
    Multiple- and Single-Site Scan
    31
    
    Scan Resume Delay
    32
    
    Transmitting in the Scan Mode
    32
    
    Fixed Transmit in Scan Mode
    33
    
    Scan List Programming
    33
    
    Group Scan
    33
    
    Scanning the Various Types of Systems
    34
  - Menu Mode and Option Switch Functions
    34
    
    A/D (Scan List Programming)
    35
    
    Auto-Registration
    35
    
    Auxiliary 1 and 2
    35
    
    Backlight
    35
    
    Bank Select
    35
    
    Call Guard Squelch Disable
    36
    
    Emergency
    36
    
    Encryption
    36
    
    External PA
    36
    
    Home System/Group
    36
    
    Horn/Light Alert
    36
    
    LTR System Search Select
    36
    
    Menu Select Switch
    36
    
    Monitor Mode Select Switch
    36
    
    Phone Mode Select
    36
    
    Radio Sounds
    37
    
    Scan On/Off
    37
    
    Scan List Save
    37
    
    Scan Type
    37
    
    Status Select
    37
    
    Talk-Around
    37
    
    Viewing Angle
    37
  - Option Switch and Menu Mode Functions
    34
    
    Introduction
    34
  - General Features
    37
    
    Time-Out Timer
    37
    
    Call Indicator
    37
    
    Proceed (Clear-To-Talk) Tone
    38
    
    Horn/Light Alert
    38
    
    Profile
    39
    
    Banks
    39
    
    Power Turn-Off Delay
    40
    
    Emergency Calls
    40
    
    Programmable Power Output
    41
    
    Automatic Transmitter Thermal Foldback
    41
    
    Data System/Groups
    41
    
    Encryption
    41
    
    Phone Mode
    42
    
    Display of Software Version
    43
  - Multi-Net Mode Features
    43
    
    Busy Queuing (Multi-Net)
    43
    
    Auto-Registration (Multi-Net)
    44
    
    Transmitting Status Information (Multi-Net)
    45
    
    Special Calls (Multi-Net)
    45
    
    Transmit Inhibit
    47
    
    Access Priority (Multi-Net)
    47
    
    Camp-On Prevent
    47
  - Conventional Mode Features
    48
    
    Transmit Disable on Busy
    48
    
    Call Guard Squelch
    49
    
    Monitor Mode
    49
    
    Repeater Talk-Around
    49
    
    Priority Group Sampling
    50
    
    Receive-Only Groups
    50
  - Ltr Mode Features
    48
    
    Free System Ringback
    48
    
    System Search
    48
    
    Transpond
    48
    
    Transmit Inhibit
    48
  - Miscellaneous
    50
    
    Supervisory Tones
    50
    
    Display Messages
    51
  - Test Mode
    53
    
    Introduction
    53
    
    Receive-Transmit-RSSI
    53
    
    Power Level 1 Set (Std Band)
    54
    
    Power Level 1 Set (Talk-Around Band)
    55
    
    Power Levels 2, 3, 4, 2W
    55
    
    Modulation Balance
    55
    
    Transmitter Hum and Noise
    55
    
    DC Voltage Check
    55
    
    Display Test
    55
4 Transceiver Programming

56
- General
  56
  - Programming Setup
    56
  - Computer Description
    56
  - Remote Programming Interface (RPI)
    56
  - EEPROM Data Storage
    57
  - Software Version Number
    57
  - Computers Running Windows
    57
  - Software Installation
    57
  - Hardware Hookup
    58
  - Minimum Free Memory Required
    58
  - Starting the Program
    58
  - Header Information
    58
  - Special Keys
    58
- Programming Software Menu Structure
  59
- Main Menu
  60
- Modify Radio File Menu
  62
  - Introduction
    62
  - Edit Main Radio Parameters
    62
  - Define Option Buttons
    62
  - Setup Menu Functions
    63
  - Create/Edit/Copy/Delete System
    63
- Define Option Buttons Screen
  64
- Setup Menu Functions Screen
  64
- Additional Programming Information
  66
  - Repeater Number Programming
    66
  - Ltr)
    66
- Telephone Numbers Screen
  66
- Setup/Change Unique ID Screen
  66
- Programming One Transceiver with Another (Cloning)
  68
- Write-On Flash Programming
  68
  - Introduction
    68
  - Programming Files
    69
  - Programming "A" Model Transceivers
    69
  - Programming Procedure
    69
- Universal Interface Programming
  69
  - Introduction
    69
  - Main Parameters Screen
    70
- Main Universal Interface Screen
  70
  - System Parameters Screen
    71
  - Auxiliary and Emergency Switch Programming
    71
- System Universal Interface Screen
  71
- Main Radio Parameters Screen
  72
- Multi-Net System Parameters
  73
- LTR System Parameters
  76
- Conventional System Parameters
  78
- Create/Edit Bank Screen Parameters
  80
- Call Guard (CTCSS/DCS) Codes and Tones
  81
5 Multi-Net System Overview

96
- Multi-Net System Components
  96
  - Introduction
    96
  - Mobile Transceivers
    97
  - Repeaters
    97
  - Radio Network Terminal (RNT)
    97
  - Dispatch Consoles
    97
  - Public Switched Telephone Network (PSTN)
    97
- Definitions of Multi-Net Terms
  98
- Home and Status Repeaters
  99
- Home Channel Backup
  99
  - Introduction
    99
  - Selecting Repeater to Monitor
    99
  - Assigning the Status Channel
    99
  - Detecting Defective Repeaters
    99
- Mobile-Repeater Data Signaling
  100
- Repeater Data Bus Signaling
  100
- Standard and Special Calls
  101
- Other Multi-Net Features
  101
  - Unique ID Codes
    101
  - Access and Receive Priority
    101
  - All Call
    102
  - Interrogate
    102
  - Mobile Disable
    102
  - Dynamic Reprogramming of Group 11
    102
  - Dynamic Move to New System/Group
    102
  - ID Validation
    102
  - System Key
    102
  - Dynamic Channel Assignment
    103
  - Emergency Calls
    103
  - Auto-Registration (Roaming)
    103
  - Busy Queuing
    103
  - Sending Status Information
    103
  - Transmit Inhibit
    103
  - Voice Encryption
    104
6 Circuit Description

106
- General Transceiver Description
  106
  - Introduction
    106
  - Synthesizer
    106
  - Receiver
    106
  - Transmitter
    106
  - Audio/Logic Board
    106
- Synthesizer Circuit Description
  107
  - Introduction
    107
  - Voltage-Controlled Oscillator Module
    107
- Transceiver Block Diagram
  108
- U801 Block Diagram
  110
  - Lock Detect (Q808, Q809)
    111
  - Charge Pump (Q804-Q807)
    112
  - Voltage Multiplier (CR804A/B, CR805A/B)
    112
- Receiver Circuit Description
  112
  - RF Amplifier (Q290)
    112
  - First Mixer (Q205)
    113
  - Crystal Filters (Z205, Z206), if Amplifier
    113
  - Second Mixer/Detector (U200)
    113
  - Audio Power Amplifier (U100)
    114
  - Volt Switch (Q100, Q103, Q106-Q108)
    114
- Transmitter Circuit Description
  114
- Audio/Logic Board Digital Circuit Description
  116
  - Microprocessor (U401)
    116
  - Memory and I/O Addressing
    118
  - Digital Signal Processor (U300-U302)
    119
- Audio/Logic Board Receive Signal Processing
  119
  - Receive Audio Processing
    119
  - Receive Data Processing (U606A-D)
    120
  - Squelch Circuit (U607B, U607C)
    120
  - RSSI Comparator (U602C)
    121
- Transmit Audio/Data Processing
  121
7 Servicing

124
- General
  124
  - Periodic Checks
    124
  - Schematic Diagrams and Component Layouts
    124
  - Replacement Parts
    124
  - Configuring Transceiver for Testing
    124
  - Surface-Mounted Components
    124
  - CMOS Handling Techniques
    124
- Synthesizer Troubleshooting
  125
  - Introduction
    125
  - Tcxo (Y800)
    125
  - VCO Module and Prescaler
    125
  - Synthesizer (U801)
    126
- Simplified Synthesizer Block Diagram
  126
  - Determining Counter Divide Numbers
    128
- Receiver Troubleshooting
  128
- Transmitter Troubleshooting
  128
- Audio/Logic Board Troubleshooting
  128
  - Digital Circuits
    128
  - Analog Circuits
    128
- SURFACE MOUNTED DEVICES (Smds)
  128
  - Servicing Techniques
    128
  - Identifying SMD Resistors
    128
  - SMD Capacitor Identification
    129
- Ceramic SMD Capacitor Identification
  129
  - SMD Inductor Identification
    130
  - Transistor/Diode Identification
    130
8 Alignment Procedure and Performance Tests

132
- General
  132
  - Introduction
    132
  - Test Cables
    132
- Frequency Adjustment
  132
- Transmitter Tuneup
  133
  - C511 Adjustment (30 or 35 Watt Models Only)
    133
  - Power Level 1 Adjustment
    133
- Transmitter Test Setup
  133
  - Power Level 2-4, 2W Adjustment
    134
  - Modulation Balance
    134
  - Transmit Data Level Adjustment
    134
  - Transmit Audio Limiting Adjust
    134
- Receiver Alignment
  135
  - Front End Alignment
    135
  - RSSI Detect Adjust
    135
  - Squelch Adjust
    135
- Receiver Test Setup
  135
  - Local Tone Level Adjust
    136
  - Alignment Point Diagrams
    136
- Receiver Performance Tests
  137
- Transmitter Performance Tests
  137
9 Parts List

138
- RF and PA Boards, Hardware and Miscellaneous
  138
- Audio/Logic Board
  146
- Front Panel Assembly
  152
- Compandor Kit
  153
- Hardware and Cable Kit
  153
- Remote Control Unit and Remote Kit
  154
- Accessory Wire Kit
  154
- Transceiver Mounting Kit
  154
- Transceiver Exploded View (Part 1)
  156
- Transceiver Exploded View (Part 2)
  157
10 Schematic Diagrams and Component Layouts

158
- Basing Diagrams
  158
- Standard Amplified Dynamic Microphone
  159
- Transceiver-To-Transceiver Cloning Cable
  160
- RPI (Part No. 023-9800-000) Schematic
  160
- RPI-To-Transceiver Programming Cable
  161
- RPI (Part No. 023-9800-000) Board Layout
  161
- RF and PA Board Component Locator Guide
  162
- Interconnect Schematic
  168
- Display Board Schematic
  169
- Schematic (Part 1 of 2)
  183
- Schematic (Part 2 of 2)
  184
- Board Layout Top View
  185
- Board Layout Bottom View
  186
- Revised Compandor Board Schematic
  187
- Revised Compandor Board Layout
  187
- Remote Transceiver Interconnect Schematic
  
  188
  - Control Unit Interface Board Schematic
    189
Appendix Arevision Summary

191
Introduction

191
Transceiver Operating Software

191
- Updates
  191
Revision Letter Changes

191
- Transceiver Revision Letter
  191
- Control Unit Revision Letter
  191
- Programming Software Changes
  
  191
  - Operating Software Version Numbers
    192
Remote Control Unit Compatibility

193
Wide Area Group Tracking Programming

193
New Features

194
- Bank Start at Home Feature
  194
- Group Proceed Tone Delay
  194
Other Late Changes

197
Appendix Buniversal Digital and Data Interface

198
General Information

198
- Scope
  198
- Universal Interface Description
  198
- Universal Interface Pin Designations
  198
Power Supply

199
Receive Audio Signals

199
- Pin Descriptions
  199
- Receive Audio Gating
  199
Transmit Audio Signals

199
- Transmit Audio Programming
  199
- Power Supply Pin Description
  199
- Receive Audio Signal Routing
  200
- Receive Audio Programming
  200
- Receive Audio Pin Description
  200
- Transmit Audio Signal Routing
  201
- Transmit Audio Programming
  201
- Transmit Audio Pin Description
  201
Input Control Signals

202
Output Control Signals

202
- Control Signal Description
  202
Interfacing with a Data Modem

204
- General
  204
- Modem Control Lines
  204
- ARQ Arbitration
  204
Serial Bus Protocol

205
- Introduction
  205
- Serial Bus Pin Description
  205
  - Physical Signal Path
    206
  - Character Level Protocol
    206
  - Message Level Protocol
    206
  - Message Supervision Types
    207
  - Serial Port Command Messages
    207
- Serial Bus Encode/Decode Diagram
  207
  - Response Messages
    212
- UPDATE_DISPLAY Message Coding
  215

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E.F. Johnson Company Summit DM 975x Manuals

E.F. Johnson Company Summit DM 975x Service Manual (216 pages)

Table of Contents

1 General Information

2 Installation

Operation

4 Transceiver Programming

5 Multi-Net System Overview

6 Circuit Description

7 Servicing

8 Alignment Procedure and Performance Tests

9 Parts List

10 Schematic Diagrams and Component Layouts

Remote Transceiver Interconnect Schematic

Appendix Arevision Summary

Introduction

Transceiver Operating Software

Revision Letter Changes

Programming Software Changes

Remote Control Unit Compatibility

Wide Area Group Tracking Programming

New Features

Other Late Changes

Appendix Buniversal Digital and Data Interface

General Information

Power Supply

Receive Audio Signals

Transmit Audio Signals

Input Control Signals

Output Control Signals

Interfacing with a Data Modem

Serial Bus Protocol

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