16 NotesNotes

About this Guide

Safety Warnings

Caution: Radio Protection

Getting Started

Radio Indicators

Basic Operation

Transmit Timer

Squelch

Scanning

Troubleshooting

Notes

installation planning

radio installation

installing the power cable

Tait TM8105 User Manual

Contact Information

Tait General Software Licence Agreement

Preface

Disclaimer

Alert Notices

Introduction

Description of the Radio Interfaces

RF Connector

Auxiliary Connector

Internal Options Connector

Provision for External Options Connector

Control-Head Connector

Microphone Connector

Programming Connector

Programmable I/O Lines

Toggle Stand-by Mode

Enter Emergency Mode

Send Channel Preset Call

Send Free Format Preset 1

External PTT 1 and 2

Inhibit PTT

Toggle Tx RF Inhibit

Decrement Channel

Increment Channel

Home Channel

Preset Channel

Mute External Audio Input

Mute Audio Output Path

Unmute Audio Output Path

Force Audio PA On

Force Audio PA Off

Simulate F1 to F4 Key

Toggle F1 to F4 Key LED

Digital Output Lines

Busy Status

Radio Transmission Status

Channel Locked Status

External Alert 1 and 2

Reflected PTT Inhibit Status

Monitor Status

Call Setup Status

Control Status Rx (Line 1 to 3)

Inband Tone Received

F1 to F4 Key Status

FFSK Data Received Status

Audio Tap In and Tap Out Lines

Creating Your Own Options Board

Mechanical Envelope

TM8000 Internal Options Kit

Common Practices for Internal Options Board Design

Guidelines for EMC Design

Blank Control Head Options Board

Connecting Third-Party Products

External Products

Audio Headset

USB Adaptor

Internal Products

ANI Module

Replacing the Tait T2000-A81 Board

Configuring the TM8000

Power Sense Options

V Battery Power Sense

Auxiliary Power Sense (Ignition Sense)

No Power Sense (On/Off Key Only)

Configuring the Hardware Links LK1 to LK4

Radio Programming

Connector Power Supply Options

Connecting an External Alert Device

Fitting Power MOSFET Q707 and Removing Resistor R768

TM8105

About this guide

Copyright information

Safety warnings

Radio protection

Getting started

Radio indicators

Basic operation

Receiving a call

Monitor

Voting

Describing the radio's audible tones

interference with vehicular electronics

installation tools

installing the microphone

installing the antenna

checking the installation

limited warranty

contact information

Issue

Associated Documentation

Publication Record

Abbreviations

Chapter 1 Description of the Radio

frequency bands

product codes

compliance information

Description

user interfaces

microphone connector

hardware and software architecture

operation in receive mode

operation in transmit mode

Circuit Descriptions

transmitter circuitry

receiver circuitry

frequency synthesizer circuitry

frequency control loop

codec and audio circuitry

power supply circuitry

interface circuitry

digital board

Chapter 2 Servicing the Radio

General Information

servicing precautions

replacing board components

shielding cans and connectors

smt repair techniques

defining frequency bands

visual and audible indications

disassembly and reassembly

Disassembly and Reassembly

disassembling the radio body

reassembling the radio body

disassembling and reassembling the control head

servicing procedures

Servicing Procedures

final tasks

power supply fault finding

Power Supply Fault Finding

interface fault finding

Interface Fault Finding

frequency synthesizer fault finding

Frequency Synthesizer Fault Finding

loop filter

power supply for fcl

vcxo and tcxo outputs

signals at tp501 and tp

vcxo and codec circuitry

receiver fault finding

Receiver Fault Finding

excessive loss of sensitivity

moderate or slight loss of sensitivity

incorrect rssi readings

faulty radio mute

high receiver distortion

Transmitter Fault Finding (40W/50W)

Transmitter Fault Finding (25W)

codec and audio fault finding

CODEC and Audio Fault Finding

faulty speaker audio

no speaker audio at auxiliary connector

faulty receiver

faulty modulation

faulty modulation using auxiliary connector

Fault Finding of Control Head with Graphical Display

power supply faulty

lcd display faulty

lcd backlighting faulty

lcd heating faulty

function key leds or status leds faulty

keypad backlighting faulty

ptt faulty

Fault Finding of Control Head with 1- 2- or 3-Digit Display

spare parts

Spare Parts

Chapter 3 Accessories

TMAA01-01 Line-Interface Board

programming information

power supply

TMAA01-02 RS-232 Board

TMAA01-05 Options-Extender Board

TMAA02-02 DTMF Microphone

TMAA02-06 Support Kit for Concealed & Dynamic Microphones

TMAA02-07 Concealed Microphone

TMAA02-08 Keypad Microphone

TMAA03-02 Security Bracket

installing a remote kit

Installing a Remote Kit

installing an enhanced remote kit

Installing an Enhanced Remote Kit

TMAA04-04 Crossband Linking Cable

operational testing

TMAA04-05 Ignition Sense Kit

TMAA10-01 Desktop Microphone


Contents About this Guide Table Of Contents Safety Warnings Caution: Radio Protection Getting Started Radio Indicators Basic Operation Transmit Timer Squelch Scanning Troubleshooting Notes installation planning radio installation installing the power cable	16 NotesNotes Previous Next / 32