General Repair Information - Nokia 3510i Service Manual

Nokia Mobile Phones Customer Care EMEA
Technical Services, Repair Concepts

5. GENERAL REPAIR INFORMATION

In this section the technician will get some general hints how to carry out repairs:
o Before starting the repair you must take care of ESD precautions like being in your ESD-area and
connecting your wristband.
o Use gloves to avoid corrosion and fingerprints.
o Protect windows and displays with a foil to avoid dust and scratches.
o When cleaning the pads you have to use a soft cloth and isopropanol. It is not allowed to use a glass fiber
pencil because it scratches the surface and will lead later on to corrosion.
o Mechanical parts, which didn't repair the failure, can be reused, if they are not soldered.
o Use always original Nokia parts or accessories.
o Meet the torque requirements when assembling the unit (see also the document "torques for transceiver
assembly" on Partner Websites).
o Always use your own equipment for testing where you are sure that it works. E.g. if the customer
complains about charger function, please test the phone with your own charger to be sure if phone or
charger causes the malfunction.
o When doing the Faultlogger entries, always note the Item code, which caused the malfunction. Also, fill in
the appropriate part code from the assembly, if needed.
o Please be aware that some malfunctions could be software related and solved by an update
Following General Service Bulletins have to be followed:
SB-055 Common notice for good ventilation
SB-089: Don't try to repair prototypes (indicated on Typelabel).
SB-107: Be sure that you have minimum hardware requirements in place.
SB-115: Handling of liquid damages.
SB-121: If one of your service tools causes malfunction, return the defective part.
Soldering with manual hot air gun is totally forbidden because of the very sensitive µBGA
SB-122:
components and µVia technology.
SB-124 Service Policy for packaging serviced products
SB-131: Check these guidelines when refurbishing products.
You can use a Golden Phone for inspecting your measuring equipment.
SB-132:
Please check Nokia Partner Web Site (PWS) for latest news and files on a regular basis.
This legend is valid for all parts of the Quick Trouble Shooter
Follow the steps until the problem is solved. If this doesn't help, you are not authorized to go forward.
Only underlined components ( e.g. I007) can be changed.
Follow the arrows step by step
Pads or contacts: Check optical and mechanical condition as well as corrosion. Clean if
necessary.
Measure component for electrical functionality and change, if needed.
No more actions possible, send product to the appropriate service partner with higher
service level.
Service Manual 3510/3510i Level 1&2
PAGE 10 (19)
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Copyright 2002 © Nokia Corporation
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05.12.2002