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After Sales Technical Documentation
Appendix 3 – Transceiver THX–43
Chapter 1
FOREWORD
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THX–43
After Sales
Foreword
Technical Documentation
CHAPTER 1 – FOREWORD
CONTENTS
Page No
Appendix Structure 1–3
Warnings and Cautions 1–3
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After Sales
THX–43
Technical Documentation
Appendix Structure
This section of the service manual (Appendix) describes the Technophone
THX–43 handportable telephone for use on the Total Access
Communication System (TACS). The appendix contains only information
specific to the Technophone THX–43 variant.
The appendix comprises three chapters as follows: Chapter 1, Foreword
(this chapter); Chapter 2, Transceiver THX–43, containing an exploded
view of the THX–43 variant (including a list of assembly parts) plus
component parts lists covering the KS3T system module and the KL3
display module; and Chapter 3, Quick Guide, which aims to provide all
user information that service personnel are likely to require during
servicing and repair of equipment.
This document is intended for use by qualified service personnel
only.
Foreword
IMPORTANT
Warnings and Cautions
Please refer to the phone’s user guide for instructions relating to
operation, care and maintenance including important safety information.
Note also the following:
Warnings:
1. CARE MUST BE TAKEN ON INSTALLATION IN VEHICLES
FITTED WITH ELECTRONIC ENGINE MANAGEMENT
SYSTEMS AND ANTI–SKID BRAKING SYSTEMS. UNDER
CERTAIN FAULT CONDITIONS, EMITTED RF ENERGY CAN
AFFECT THEIR OPERATION. IF NECESSARY, CONSULT
THE VEHICLE DEALER/MANUFACTURER TO DETERMINE
THE IMMUNITY OF VEHICLE ELECTRONIC SYSTEMS TO
RF ENERGY.
2. THE HANDPORTABLE TELEPHONE MUST NOT BE
OPERATED IN AREAS LIKELY TO CONTAIN POTENTIALLY
EXPLOSIVE ATMOSPHERES EG PETROL STATIONS
(SERVICE STATIONS), BLASTING AREAS ETC.
3. OPERATION OF ANY RADIO TRANSMITTING EQUIPMENT,
INCLUDING CELLULAR TELEPHONES, MAY INTERFERE
WITH THE FUNCTIONALITY OF INADEQUATELY
PROTECTED MEDICAL DEVICES. CONSULT A PHYSICIAN
OR THE MANUFACTURER OF THE MEDICAL DEVICE IF
YOU HAVE ANY QUESTIONS. OTHER ELECTRONIC
EQUIPMENT MAY ALSO BE SUBJECT TO INTERFERENCE.
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THX–43
After Sales
Foreword
Cautions:
1. Servicing and alignment must be undertaken by qualified
2. Ensure all work is carried out at an anti–static workstation and
3. Ensure solder, wire, or foreign matter does not enter the
4. Use only approved components as specified in the parts list.
5. Ensure all components, modules screws and insulators are
Technical Documentation
personnel only.
that an anti–static wrist strap is worn.
telephone as damage may result.
correctly re–fitted after servicing and alignment. Ensure all
cables and wires are repositioned correctly.
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