Nokia NSM-3 Installation instructions

PAMS Technical Documentation

NSM–3/3D Series Transceivers

Issue 3 11/2000 Nokia Mobile Phones Ltd.

Disassembly &

Troubleshooting

Instructions

NSM–3/3D

Disassembly & Troubleshooting Instructions PAMS Technical Documentation

Page 2 Issue 3 11/2000

Nokia Mobile Phones Ltd.

CONTENTS

Disassembly of NSM–3 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Disassembly of NSM–3D 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Transceiver Troubleshooting 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Baseband Troubleshooting 11. . . . . . . . . . . . . . . . . . . . . . . . . . . .

PCB Test Points 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Testing 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System Clock 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Sleep Clock 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Supplies 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Phone is totally dead 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Flash programming fails 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power doesn’t stay on or phone is jammed 20. . . . . . . . . . . .

Contact Service on the phone display 20. . . . . . . . . . . . . . . . .

SIM related faults 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Audio faults 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Charging fault 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

RF Troubleshooting 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

NSM–3/3D

Disassembly & Troubleshooting Instructions

PAMS Technical Documentation

Page 3

Issue 3 11/2000 Nokia Mobile Phones Ltd.

Disassembly of NSM–3

Remove battery.

Remove the SIM card

from its location.

Step 3. Lift the battery first

from the bottom end.

Step 4. Remove the battery.

Remove A–cover.

Step 1. Press the button

on the top of the phone.

Step 2. Pull A–cover apart.

NOTE snap fixings at the

lower end of A–cover.

Step 1. Press the but-

ton at the bottom of the

phone.

Step 2. Slide the cover

downwards and the

cover will be released.

NSM–3/3D

Disassembly & Troubleshooting Instructions PAMS Technical Documentation

Page 4 Issue 3 11/2000

Nokia Mobile Phones Ltd.

NOTE: When assembling the

screws, use 17 Ncm torque.

To remove the PCB from the

housing remove the 6 screws.

NOTE: Here is shown the as-

sembly order.

Remove the PCB from B–cover.

Parts can be separated. Latch and latch spring can be separated

after removal of the left A–cover fixing.

1. When taking the PCB and UI mod-

ule apart remember the snap fixings

on both sides of the LCD.

NOTE: When assembling make

sure UI and PCB module edges

are fitted also correctly.

Remove the speaker

from its housing.

NOTE: Install allways

new speaker, old speaker

must not be used.

NSM–3/3D

Disassembly & Troubleshooting Instructions

PAMS Technical Documentation

Page 5

Issue 3 11/2000 Nokia Mobile Phones Ltd.

Remove the RTC battery from its

housing in UI module.

Remove the bat-

tery connector

from its housing

using SRT–3 tool.

Remove the antenna

by releasing the snap

fixings at both sides of

the phone.

10.

12.

11.

13.

Remove the volume switch and

key from the B–cover housing.

NSM–3/3D

Disassembly & Troubleshooting Instructions PAMS Technical Documentation

Page 6 Issue 3 11/2000

Nokia Mobile Phones Ltd.

Main parts of the phone disassembled.

14.

Remove the SIM

spring by releasing

the fixings at both

ends of the spring.

NSM–3/3D

Disassembly & Troubleshooting Instructions

PAMS Technical Documentation

Page 7

Issue 3 11/2000 Nokia Mobile Phones Ltd.

Disassembly of NSM–3D

Remove battery.

Remove the SIM card

from its location.

Step 3. Lift the battery first

from the bottom end.

Step 4. Remove the battery.

Remove A–cover.

Step 1. Press the button

on the top of the phone.

Step 2. Pull A–cover apart.

NOTE snap fixings at the

lower end of A–cover.

Step 1. Press the but-

ton at the bottom of the

phone.

Step 2. Slide the cover

downwards and the

cover will be released.

NSM–3/3D

Disassembly & Troubleshooting Instructions PAMS Technical Documentation

Page 8 Issue 3 11/2000

Nokia Mobile Phones Ltd.

NOTE: When assembling the

screws, use 17 Ncm torque.

To remove the PCB from the

housing remove the 6 screws.

NOTE: Here is shown the as-

sembly order.

Remove the PCB from B–cover.

Parts can be separated. Latch and latch spring can be separated

after removal of the left A–cover fixing.

1. When taking the PCB and UI mod-

ule apart remember the snap fixings

on both sides of the LCD.

NOTE: When assembling make

sure UI and PCB module edges

are fitted also correctly.

Remove the speaker

from its housing.

NOTE: Install allways

new speaker, old speaker

must not be used.

NSM–3/3D

Disassembly & Troubleshooting Instructions

PAMS Technical Documentation

Page 9

Issue 3 11/2000 Nokia Mobile Phones Ltd.

Remove the RTC battery from its

housing in UI module.

Remove the bat-

tery connector

from its housing

using SRT–3 tool.

Remove the antenna

by releasing the snap

fixings at both sides of

the phone.

10.

12.

11.

13.

Remove the volume switch and

key from the B–cover housing.

NSM–3/3D

Disassembly & Troubleshooting Instructions PAMS Technical Documentation

Page 10 Issue 3 11/2000

Nokia Mobile Phones Ltd.

Main parts of the phone disassembled.

14.

Remove the SIM

spring by releasing

the fixings at both

ends of the spring.

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