Service Manuals, User Guides, Schematic Diagrams or docs for : NOKIA Mobile Phone 7250-7250i 00-rh23-front

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Customer Care Solutions
Technical Documentation

SERVICE
MANUAL
RH-23
Cellular Phones
NMP Part No: Original 0275921

COMPANY CONFIDENTIAL

Issue 1 03/2004
Copyright 2004 Nokia Corporation. All Rights Reserved
Customer Care Solutions
Technical Documentation

Amendment Record Sheet
Amendment No Date Inserted By Comments

03/2004 ViK Issue 1

Issue 1 03/2004
Copyright 2004 Nokia Corporation. All Rights Reserved
Customer Care Solutions
Technical Documentation

Nokia RH-23 Service Manual Structure

1. General Information

2. Parts List

3. Service SW Instructions and Service Concepts

4. Service Tools

5. Disassembly and Assembly Instructions

6. Troubleshooting

7. System Module & User Interface

Issue 1 03/2004
Copyright 2004 Nokia Corporation. All Rights Reserved
Customer Care Solutions
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.

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 CORPORATION 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 Corporation
Nokia Mobile Phones Ltd
CCS Technical Documentation
PO Box 86
FIN-24101 SALO
Finland

Note: This manual is COMPANY CONFIDENTIAL material.

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.

ESD Protection

Nokia requires that phone repair places have sufficient ESD protection (against static
electricity) when servicing cellular phones.
A cellular phone, which is ready for use, can be handled normally without ESD pro-
tection. The SIM card and battery can be replaced in normal conditions of use.
To replace the color cover ESD protection must be applied, except for the phone cov-
ers which can be replaced by the customer.
All electronic parts of the phone , including the display, are susceptible to ESD. Resis-
tors, too, can be damaged by static electricity discharge.
All ESD sensitive parts must be packed in metallized protective bags during shipping
and handling outside any ESD Protected Area (EPA).
Every repair action involving opening the phone or handling the phone components
must be done under ESD protection.
ESD protected spare part packages MUST NOT be opened/closed out of an EPA.
For more detailed information about ESD protection and EPA, contact your local
Nokia After Market Services representative.

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