Nokia NEM-4 Series Istruzioni per l'installazione

Customer Care Solutions

NEM-4 Series Cellular Phones

Issue 1 09/2003 Copyright 2003 Nokia Corporation. Page 5-1

Company Confidential

5 - Disassembly Instructions

NEM-4 Company Confidential

5 - Disassembly Instructions CCS Technical Documentation

Page 5-2 Copyright 2003 Nokia Corporation. Issue 1 09/2003

Company Confidential

Table of Contents

Page No

Disassembly instructions................................................................................................ 3

Assembly instructions .................................................................................................... 6

NEM-4 Dome Sheet Exchange ...................................................................................... 7

CCS Technical Documentation 5 - Disassembly Instructions

Company Confidential NEM-4

Issue 1 09/2003 Copyright 2003 Nokia Corporation. Page 5-3

Company Confidential

Disassembly instructions

Press the Release Button before removing B-Cover. The A-Cover is attached with snaps. Open both snaps

before removing A-cover.

Remove A-cover and keymats. Unscrew the Torx PLUS size 6 screws, using the order

shown. For assembly, take reverse order and torque of

26Ncm. Press down the PWB with fingers.

Remove UI-Shield. Open LCD Module’s connector carefully with tweezers and

remove LCD Module.

NEM-4 Company Confidential

5 - Disassembly Instructions CCS Technical Documentation

Page 5-4 Copyright 2003 Nokia Corporation. Issue 1 09/2003

Company Confidential

Always protect LCD with protection foil to avoid

dust and scratches.

Take Engine from Chassis.

Remove Mono Jack from Chassis. Remove Stereo Jack from Chassis.

Remove DC Connector from Chassis with Torx.

Put Torx under the DC Connector (1) and bend (2).

Remove Microphone from Chassis with Torx. Put Torx hole

behind Microphone and push carefully.

CCS Technical Documentation 5 - Disassembly Instructions

Company Confidential NEM-4

Issue 1 09/2003 Copyright 2003 Nokia Corporation. Page 5-5

Company Confidential

Remove the Vibra Motor from its guidance with tweezers. Remove Antenna from Chassis with tweezers.

Remove HF Speaker from Chassis with screwdriver. Put

screwdriver between Chassis and HF Speaker then bend

screwdriver. Take care not to damage the snaps by bending

them too much.

Remove Earpiece with screwdriver from Chassis by bending

the snaps carefully.

Remove Release Button with screwdriver from Chassis.

Release Button is locked by small notch. Bend the chassis

near the notch in order to release it.

Remove Power Key with tweezers.

NEM-4 Company Confidential

5 - Disassembly Instructions CCS Technical Documentation

Page 5-6 Copyright 2003 Nokia Corporation. Issue 1 09/2003

Company Confidential

Assembly instructions

Remove Domesheet with Tweezers from PWB Engine. Remove Domesheet with Tweezers from PWB Engine.

Note! The silicon gasket may stick in the PWB. Damaged and

loose silicon gasket must be replaced with a spare part gasket.

Replace damaged or loose silicon gasket with a spare part

gasket. Fix the gasket carefully with tweezers in chassis.

CCS Technical Documentation 5 - Disassembly Instructions

Company Confidential NEM-4

Issue 1 09/2003 Copyright 2003 Nokia Corporation. Page 5-7

Company Confidential

NEM-4 Dome Sheet Exchange

Put the PWB Module into the Soldering Jig. Use the SRT-6 to remove the faulty Dome Sheet. Place it

under the Dome Sheet as shown in the picture and lift it

up carefully from PWB Module.

Take care about components on the PWB Module during

removal of the Dome Sheet.

Use the same procedure also for the Dome Sheet Left.

Clean the pads on the PWB Module with a clean cloth if

necessary. Be carefully not damage the components on

the PWB.

Put the new Dome Sheet onto the Dome Sheet

Assembly Jig. Mind the guiding pins.

NEM-4 Company Confidential

5 - Disassembly Instructions CCS Technical Documentation

Page 5-8 Copyright 2003 Nokia Corporation. Issue 1 09/2003

Company Confidential

Remove the protection film. Tweezers can be used for

retaining the Dome Sheet.

Use the same procedure also for the Dome Sheet Left.

Arrows point to the right assembly position. Put the PWB Module onto the Assembly Jig carefully.

Press on PWB Module after checking that all guiding

pins are positioned correctly. Do not touch the spring

contacts.

Finally check that the holes of Dome Sheet are centered

to the PWB module holes. Ensure also, that there are no

bubbles in Dome Sheet film.

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