User Guide

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CONNECTING PEOPLE
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CMO Operations & Logistics
DJK/MGR
Training and Vendor Development
Multimedia Creation & Support CONFIDENTIAL 24.Apr.2006
2. GENERAL REPAIR INFORMATION
These section provides useful repair information how to carry out repairs:
o
To familiarize oneself with NOKIA product read the tutorials or user guide on www.nokia.com -->Support-->
Phones, by selecting the Phone Model.
o
Before starting repairs you must observe ESD precautions such as being in your ESD Protected Area and
connecting your wristband.
o Use gloves to avoid corrosion and fingerprints.
o
Protect windows and displays with a film to avoid dust and scratches.
o
Use a lint-free cloth (e.g…..) to clean the LCD(e.g. Micro-Fibre cloth).
o
When cleaning the pads use a soft cloth/ESD brush and Isopropanol. Do not use a glass fiber pencil this
scratches the surface and will cause corrosion.
o Non faulty Mechanical parts (except shielding lids and bent or soldered components ), may be reused, if they
are not soldered.
o
When removing the shielding lids make sure to replace them with new ones, otherwise the high-frequency
leakage can affect the device.
o Always use original NOKIA spare parts.
o Check the soldering joints of the parts, concerned which regard to the fault symptom (e.g. soldered connectors
or switches) and resolder them if necessary (Level 2 only).
o Remove excess soldering flux after repair.
o Observe the torque requirements when assembling the unit.
o Preferably use your own equipment for testing. E.g. if the customer complains about charger function, please
test the phone with your own charger to determine if phone or charger causes the malfunction.
o
A SIM card is needed for all GoNoGo tests.
o
When doing the fault log entries, always note the Item code of the part that caused the malfunction. Also fill
in the appropriate part code from the assembly if needed.
o
Please be aware that some malfunctions may be software related and solved by an update.
o There are several documents available on NOL, which have to be followed:
o First pay attention to the latest content pages of Service Bulletins, which are always available for each folder
on NOKIA Online. Make sure your documentation is up to date.
o The service level indicator at the bottom of each document displays the appropriate target group.
Downloads > Support Library >
1. Instructions
2. General Service Bulletins
3. Product related documents
4. Spare Part Service Bulletins
5. Service Tools Service Bulletins
6. Common Software Service Bulletins
etc,…
Use General SB-217 as a reference or overview.
Please also check NOKIA Online (NOL) for latest news and files on a regular basis.
Service Manual N70 N72 Level 1&2 Copyright © 2005-2006 NOKIA Corporation. All rights reserved.