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Customer Care Services
Technical Documentation


SERVICE
MANUAL
[NMP Part No. 0275712]




DTX-3 PBX Connectivity Ter-
minal




Issue 1 4/03
Copyright 2003 Nokia Mobile Phones. All Rights Reserved
Customer Care Services
Technical Documentation

Amendment Record Sheet
Amendment Inserted
Date Comments
No By

05/2003 ViK Issue 1




Issue 1 4/03
Copyright 2003 Nokia Mobile Phones. All Rights Reserved
Customer Care Services
Technical Documentation

Service Manual Structure

General Information

Modules

Parts List with Schematic and Layout Diagrams

Variants

Service Software Instructions

Service Tools

Disassembly / Troubleshooting

Accessories




Issue 1 4/03
Copyright 2003 Nokia Mobile Phones. All Rights Reserved
Customer Care Services
Technical Documentation

IMPORTANT
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.

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
CCS Technical Documentation
PO Box 86
FIN-24101 SALO
Finland




Issue 1 4/03
Copyright 2003 Nokia Mobile Phones. All Rights Reserved
Customer Care Services
Technical Documentation

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 ELEC-
TRONIC ENGINE MANAGEMENT SYSTEMS AND ANTI-SKID BRAKING SYS-
TEMS. 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 CELLU-
LAR TELEPHONES, MAY INTERFERE WITH THE FUNCTIONALITY OF INADE-
QUATELY 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 dam-
age may result.
4. Use only approved components as specified in the parts list.
5. Ensure all components, modules screws and insulators are correctly re-fit-
ted after servicing and alignment. Ensure all cables and wires are reposi-
tioned correctly.




Issue 1 4/03
Copyright 2003 Nokia Mobile Phones. All Rights Reserved