Nokia NSM-5 SERIES Installation instructions

PAMS Technical Documentation

NSM–5 Series Transceivers

Issue 1 02/2002 Nokia Corporation

Disassembly &

Troubleshooting

Instructions

NSM–5

Disassembly & Troubleshooting Instructions PAMS Technical Documentation

Page 2 Issue 1 02/2002

Nokia Corporation

CONTENTS

Disassembly of NSM–5 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Transceiver Troubleshooting 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Baseband Troubleshooting 10. . . . . . . . . . . . . . . . . . . . . . . . . . . .

PCB Test Points 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Testing 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System Clock 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Sleep Clock 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Supplies 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Phone is totally dead 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Flash programming fails 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power doesn’t stay on or phone is jammed 19. . . . . . . . . . . .

Contact Service on the phone display 19. . . . . . . . . . . . . . . . .

SIM related faults 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Audio faults 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Charging fault 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

RF Troubleshooting 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

NSM–5

Disassembly & Troubleshooting Instructions

PAMS Technical Documentation

Page 3

Issue 1 02/2002 Nokia Corporation

Disassembly of NSM–5

NSM–5 phone disassembled.

NSM–5 phone.

NSM–5

Disassembly & Troubleshooting Instructions PAMS Technical Documentation

Page 4 Issue 1 02/2002

Nokia Corporation

Remove the battery.

Step 3. Press the release springs on

both sides of the frame and 4. slide the

bottom cover (B–shell) off the phone.

Step 1. Press the grip markings on both

sides of the phone.

Step 2. Slide the top cover (A–shell) off

the phone.

Step 5. Turn the phone around and re-

move the battery. Use the recess next to

the SIM card holder.

NOTE: SIM card can be removed after the

battery removal.

NSM–5

Disassembly & Troubleshooting Instructions

PAMS Technical Documentation

Page 5

Issue 1 02/2002 Nokia Corporation

Remove the antenna.

Step 1. Release the snap fixings by pushing

slightly from both battery housing corners.

Step 4. Visually verify all electrical contact

points and that the antenna has not been

damaged (note the 4 fixings).

Step 2. Release the snap fixings also from

the other end of the antenna.

Step 3. Remove the antenna from the main

frame.

NSM–5

Disassembly & Troubleshooting Instructions PAMS Technical Documentation

Page 6 Issue 1 02/2002

Nokia Corporation

Drive size is torx plus 6.

Tightening torque is 17 Ncm.

In assembly check that PWB is not bent.

Remove the UI module.

Remove the frame screws (6 pcs) starting

from number 1 (bottom left).

NOTE: In assembly use reversed order.

NOTE: When assembling the screws,

use 17 Ncm torque.

2. 3.

UI module can now be separated from

the main frame/system module.

5. 3.

UI module and system PWB apart.

NSM–5

Disassembly & Troubleshooting Instructions

PAMS Technical Documentation

Page 7

Issue 1 02/2002 Nokia Corporation

Be careful not to damage the metal gasket.

Main frame assembly.

Remove the system PWB

from the main frame.

Main frame disassembled.

NSM–5

Disassembly & Troubleshooting Instructions PAMS Technical Documentation

Page 8 Issue 1 02/2002

Nokia Corporation

Removing battery connector

and SIM spring.

Release the other end of SIM spring and

the spring will come off.

To remove the SIM spring from the

main frame turn the phone around.

Use appropriate tool to unlock one end

of the SIM spring.

Slide the SRT–3 (Battery Connector Extractor

Tool) towards the battery connector and it will

be released from the main frame.

NSM–5

Disassembly & Troubleshooting Instructions

PAMS Technical Documentation

Page 9

Issue 1 02/2002 Nokia Corporation

Speaker and display removal.

Remove UI module screws (2 pcs).

To remove the display release the snap fix-

ings on both sides of the module.

Speaker can now be removed.

NOTE: Do not damage the speaker con-

tact springs.

NOTE: When assembling the screws,

use 8 Ncm torque.

NSM–5

Disassembly & Troubleshooting Instructions PAMS Technical Documentation

Page 10 Issue 1 02/2002

Nokia Corporation

Transceiver Troubleshooting

Baseband Troubleshooting

Because of the underfilling of the MAD and combo memory, it is impossible

to change those.

PCB Test Points

Reference Signal Note

C213 RFC MAIN CLOCK (13MHz)

HAGAR (N505) –> MAD (D200)

J100* PWM CHARGE CURRENT CONTROL

CCONT (N100) –> CHAPS (N101)

J101 FBUSTX FBUS TRANSMITTED DATA

MAD (D200) –> SERVICE INTERFACE

J102 FBUSRX FBUS RECEIVED DATA

SERVICE INTERFACE –> MAD (D200)

J103 MBUS ONE WIRE TWO DIRECTION SERIAL BUS

(9600 BIT/S)

MAD (D200) <–> SERVICE INTERFACE

J104 CCONT CSX CCONT (N100) CHIP SELECT

MAD (D200) –> CCONT (N100)

J223 CCONT INT CCONT (N100) INTERRUPT

MAD (D200) –> CCONT (N100)

J226 VCXOPWR 26MHz SYSTEM CLOCK CONTROL

MAD (D200) –> VCXO (G830)

J227 PURX POWER UP RESET

CCONT (N100) –> MAD (D200)

J228 SLEEPCLK SLEEP CLOCK (32kHz)

CCONT (N100) –> MAD (D200)

J230 GND GROUND

J234* HAGAR _RESET_X HAGAR (N505) RESET

MAD (D200) –> HAGAR (N505)

J235 ROM1SELX FLASH CHIP SELECT

MAD (D200) –> COMBO MEMORY (D210)

J236 RAMSELX RAM CHIP SELECT

MAD (D200) –> COMBO MEMORY (D210)

J237 SYNTHDATA

(SDATA) HAGAR (N505) SERIAL DATA

MAD (D200) –> HAGAR (N505)

J239 DSPXF NOT CONNECTED

J240 MCURDX MCU READ

MAD (D200) –> COMBO MEMORY (D210)

J241 MCUWRX MCU WRITE

MAD (D200) –> COMBO MEMORY (D210)

J242 MCUAD1 MCU ADDRESS LINE 1

MAD (D200) –> COMBO MEMORY (D210)

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