Nokia NEM-4 Series Installation instructions

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.
4
3
6
5
2
1
8
9
7

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.