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After Sales Technical Documentation
THX–4 Series Transceiver
Chapter 1
FOREWORD
Original, 09/94
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THX–4
After Sales
Foreword
Technical Documentation
CHAPTER 1 – FOREWORD
CONTENTS
Page No
Introduction 1–3
Service Manual Structure 1–3
Company Policy 1–4
Warnings and Cautions 1–4
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Introduction
Service Manual Structure
The service manual is structured as a series of stand–alone booklets
which can be ordered on an as–required basis. The ’core’ service manual
consists of the following:
THX–4 series Transceiver booklet
Chapter 1: Foreword
Chapter 2: Performance Specifications
Chapter 3: Transceiver Overview
Chapter 4: System Module
Chapter 5: Display Module
Appendix to the Transceiver booklet
THX–41/42/43) comprising:
Chapter 1: Foreword
Foreword
comprising
covering a specific variant (ie
Chapter 2: Transceiver THX–41/42/43 variant
Chapter 3: Quick Guide
PC Locals Service Software/NAM Programming Instructions and Servicing
Information.
The accessory booklets comprise an overview; seven separate booklets
covering those accessories deemed to be serviceable; and a booklet
covering the remaining (non–serviceable) accessories.
Accessory Overview
LCH–2 Cigarette Lighter Charger
HFJ–2 Handsfree Junction Box
JBH–1 Cable Junction Box
BSH–1 Booster Kit
CHH–6 Desktop Charger
CHH–7 Handsfree Desktop Charger
PHF–2 Compact Handsfree Unit
Non–serviceable Accessories
Other booklets available are:
CARK30 Installation Guide
CARK31 Installation Guide
TACS System Overview
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After Sales
Foreword
This section of the service manual (the THX–4 series Transceiver booklet)
describes those areas of the THX–4 series handportable telephone which
are common to all variants. This booklet includes performance
specifications; a technical overview of the transceiver plus detailed
descriptions of the main modules and associated parts lists.
This document is intended for use by qualified service personnel
only.
Company Policy
Our policy is of continuous development; details of all technical
modifications will be included with service bulletins.
While every endeavour has been made to ensure the accuracy of this
document, some errors may exist. If any errors are found by the reader,
NOKIA MOBILE PHONES Ltd should be notified in writing.
Technical Documentation
IMPORTANT
Please state:
Title of the Document + Issue Number/Date of publication
Latest Amendment Number (if applicable)
Page(s) and/or Figure(s) in error
Please send to: Nokia Mobile Phones Ltd
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.
After Sales Technical Documentation
PO Box 86
24101 SALO
Finland
2. THE HANDPORTABLE TELEPHONE MUST NOT BE
OPERATED IN AREAS LIKELY TO CONTAIN POTENTIALLY
EXPLOSIVE ATMOSPHERES EG PETROL STATIONS
(SERVICE STATIONS), BLASTING AREAS ETC.
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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.
Cautions:
1. Servicing and alignment must be undertaken by qualified
personnel only.
2. Ensure all work is carried out at an anti–static workstation and
that an anti–static wrist strap is worn.
3. Ensure solder, wire, or foreign matter does not enter the
telephone as damage may result.
4. Use only approved components as specified in the parts list.
Foreword
5. Ensure all components, modules screws and insulators are
correctly re–fitted after servicing and alignment. Ensure all
cables and wires are repositioned correctly.
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Foreword
Technical Documentation
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