Nokia 3310 Repairhints 1

nokia

Product NHM-5 Repairhints
Service & Competence Center Europe Introduction Version 1.0 Approved
Customer Care Training Group Date 2001-03-27

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Repairhints

3310

NHM-5

HDa 12

© NMP 2001

Checked by:

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nokia

Product NHM-5 Repairhints
Service & Competence Center Europe Introduction Version 1.0 Approved
Customer Care Training Group Date 2001-03-27

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GENERAL

-How to use this document

Put the QUICK REPAIR layouts behind this manual.
Now you are able to follow these specifications with graphical layouts and it is easier for you to find the
components and measuring points.

-Component characteristics:

Some components contain important data.

Several described steps are only practicable if you are able to reflash/ realign the phone and/or rewrite
IMEI/SIMlock in certain cases. Please pay attention to separate notes.

-Underfills, broken balls, µBGA

It is not possible to change underfilled components. The trial will damage PCB surely. All replaceable
µBGA-components must be renewed after removing. Reflow is not allowed.
Check soldering points, remove oxidated solderings (broken balls) carefully by enclosing few new solder
before placing new components.
µBGA must be soldered only with NMP approved µBGA-rework machines (e.g. Zevac/OK International).
Use only recommended Fluxtype and an appropriate amount of it.

-PCB handling & cleaning

Only use appropriate cleaning materials, don`t use scratching or rubbing tools. Clean PCB carefully after
every rework and take great pains over the keyboard area. Don´t make any loose wiring connections
anywhere.
If it is necessary to clean the PCB, please pay attention to the following: Because of organic surface
protection (OSP), cleaning must only be done with a lint-free cloth which may be moisten with DI-water.
IPA or other solvent like ethanol should only be used to clean gold pads for spring contacts without
affecting the surrounding copper layers.
If it is necessary to change any item located under the metal shields, remove the shield first, don´t cut
partially or bend it.

-Realign after repair

Characteristics of replacement parts are different.
To prevent additional faults after repair (eg. low standby time, loosing network etc.) it is necessary
to retune phone values after repair.

© NMP 2001

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Product NHM-5 Repairhints
Service & Competence Center Europe Introduction Version 1.0 Approved
Customer Care Training Group Date 2001-03-27

IMPORTANT:

This document is intended for use by authorized NOKIA service centers only.

The purpose of this document is to provide some further service information for NOKIA 3310 phones.
It contains a lot of collected tips and hints to find failures and repair solutions easily.
It also will give support to the inexperienced technicians.
Saving process time and improving the repair quality is the aim of using this document.
We have build it up based on fault symptoms (listed in "Contents") followed by detailed description for further
analysis.
It is to be used additionally to the service manual and other service information like Service Bulletins, for that
reason it doesn't contain any circuit descriptions or schematics.

All measurements are made using following equipment:

Nokia repair SW : WinTesla Version 6.43

DLL version : 311.03.00

Nokia Module Jig : MJS-19

Digital multimeter : Fluke 73

Oscilloscope : Hitachi V-1565; Fluke PM 3380A/B

Spectrum Analyzer : Advantest R3131 with an analogue probe

RF-Generator / : Rohde & Schwarz CMU 200

GSM Tester

While every endeavour has been made to ensure the accuracy of this document, some errors may exist. If any errors
are found by the reader, NOKIA should be notified in writing, using following procedure :

Please state:

Title of the Document + Issue Number/Date of publication.
Page(s) and/or Figure(s) in error.

Please send to: Nokia GmbH

Service & Competence Center Europe
Meesmannstr.103
D-44807 Bochum / Germany
Email: [e-mail]

© NMP 2001

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Product NHM-5 Repairhints
Service & Competence Center Europe Introduction Version 1.0 Approved
Customer Care Training Group Date 2001-03-27

Contents

GENERAL 2

INTRODUCTION 3

HARDWARE CHANGES 5

PHONE DOESN´T SWITCH ON 6

FLASH UPDATE NOT POSSIBLE 8

PHONE SWITCHES OFF 9

LOW STANDBY TIME 10

NOT CHARGING 12

CONTACT SERVICE 14

SIMCARD FAULTS 15

AUDIO FAULTS 18

USER INTERFACE FAULTS 19

NO SERVICE 21

FREQUENCY LIST 29

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Product NHM-5 Repairhints
Service & Competence Center Europe Introduction Version 1.0 Approved
Customer Care Training Group Date 2001-03-27

HW-CHANGES IN 3310/NHM-5/HDa 12

Intermittent switches off problem ( SB 12 )

In case of HW-ID 0600, 0601,0602, 0603, 0604, 0607, 0608, 0612 and 0614 change following parts:

R559 from 2.2kΩ to 1kΩ (1430754)

C559 from 100pF to 47pF (2320552)
C560 from 1nF to 47pF (2320552)

C303 from 1nF to 47pF (2320552)

Since HW-ID 0615 these changes are implemented in production.

Software update to PhoneSW 4.06 or higher makes above mentioned HW update unnecessary (SB16)

Difficulties when removing B-Cover ( SB 13 )

If customers critisize bad removal of B-Cover cut away the guiding pin of the D-Cover ( see picture below )
After this procedure it is necessary to assemble the phone with a torque screwdriver prepared for 30Ncm!

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Product NHM-5 Repairhints
Service & Competence Center Europe Introduction Version 1.0 Approved
Customer Care Training Group Date 2001-03-27

PHONE DOESN`T SWITCH ON

Phone doesn`t

switch on

Check current consumption

Off state: 0.1-0.6 mA
Sleepmode: 0.6-4 mA

Call mode: 100-550 mA,

if too high, continue with

section "LOW

STANDBY/OPERATION MODE

TIME"

Disable watchdog if phone

switches off after 2-3

seconds

nOK

Check Vb 3.6V at

C227/228

OK

Check

32.768kHz at C220,
3Vpp squarewave

Check X203 if bent

or soiled, check

L513,L201

nOK nOK

Check/change

B200,R211/212/214,

C229/230

Change N201

OK

Check if

PWRONX at R402 drops

to 0V during

powerswitch-use

OK

Check

Vbb 2.8V at

C209/211

OK

Check Vxo 2.8VDC at

C243

OK

Check

Vcore 1.7VDC at both

pads of L200, change if

necessary.

OK

Check SLEEPX

2.8VDC at J308

OK

Check

PURX 2.8V DC at

R308 after

Powerkey-press

nOK

Check/change

S419,R402,R224,

Change N201 if necessary

nOK

Check resistance of line

to GND (~90k). If line OK,

change N201

nOK

Check resistance of line

to GND (~45k). If line OK,

change N201

nOK

Check resistance of line

to GND (~180k). If line

OK, change N201

nOK

OK OK OK

MAD is faulty in all

probability. Swap phone,

MAD is not changeable

Check 13MHz

REFCLK at C303

(500mVpp)

Try to flash the

phone

Phone is OK

nOK nOK

Change N201

Check values around

G502,N500,V502

nOK

Continue with section
"FLASH UPDATE NOT

POSSIBLE"

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Product NHM-5 Repairhints
Service & Competence Center Europe Introduction Version 1.0 Approved
Customer Care Training Group Date 2001-03-27

X203 Battery connector

Check if bent or soiled.
Check that pads of connector on PCB are clean.

S419 Power on/off switch faulty

Check that voltage at R402 is 3.6V when powerswitch is not pressed.
If voltage is not ok, check R402 and R224, change N201 if necessary.
If voltage at R402 is ok, it must decrease to 0V if S419 is pressed, else change S419.
Disable watchdog by connecting R224 to GND if phone switches off after 2 or 3 seconds.

B200 Sleep Clock Oscillator faulty

Check 32.768kHz, 3Vpp squarewave at pad of C220 located towards B200.
If oscillator does not work, check voltage at the two pads of B200 which are located
towards N201, normally 1.6V DC. If not ok, check periphery of B200 or change CCONT N201.
If frequency is not ok, check parts around B200 (R211, R212, R214, C229/230).

G502 Reference oscillator faulty

Check Vcc 2.7V DC at G502 pin 2 and Vcont (varies between 0.03V and 2.3V, typically 1.3VDC) at C552.
Check 26MHz Clk-frequency at pin 3 of G502, 1Vpp
Check 13MHz Clk-frequency at C559, 300mVpp
If not ok, check voltages for HAGAR N500. (Detailed information in chapter “No Service”).
Check 13MHz Clk-frequency at C303, 500mVpp at pad located towards V103.
If not ok, check values around V502

N201 CCONT faulty

Check Vb 3.6V DC at C227/228.
Check 32.768kHz, 3Vpp squarewave at pad of C220 located towards B200.
Check that PWRONX decreases from 3.6V DC to 0V at R402 if powerswitch is
pressed.
If these conditions are fulfilled output voltage lines should rise to their intended values
and PURX is released after some milliseconds by CCONT.
If CCONT does not work, check output voltage lines for shorts to ground ( check current consumption! ),
if ok, change CCONT with µBGA soldering machine and run energy management calibration.

D300 MAD faulty

Check 32.768kHz squarewave at C220.
Check 13MHz Clk-frequency at C303.
Check Vbb 2.8V DC at C209/211 and Vcore 1.7V DC at L200.
Check SLEEPX 2.8V DC at J308.
Check PURX 2.8V DC at R308.
Try to flash the phone.
MAD is probably faulty, swap the phone because MAD is not changeable.

© NMP 2001

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Product NHM-5 Repairhints
Service & Competence Center Europe Introduction Version 1.0 Approved
Customer Care Training Group Date 2001-03-27

FLASH UPDATE NOT POSSIBLE

Flash update not

possible

Prommer fault code

1. MCU boot failure

2. Serial clock line failure

3. Serial data line failure

yes

Connect "watchdog disable"
R224 to GND if phone does

not stay on

OK

Check Vbb 2.8V at C209/211

Vxo 2.8V at C243

Vcore 1.7V at L200

nOK

no

Continue with section
"Phone doesn`t switch

on"

Algorithm code fail,

alias ID missing

yes

Update FP box with latest

flash device list, try to

update again

nOK

no

Change Flash D301, try

to update again. If not
ok, MAD or PCB faulty

External RAM failure

yes

Change SRAM D302, try to

update again

nOK

OK

Check SLEEPX 2.8V

at J308

OK

Check PURX 2.8V at R308

OK

Check 13MHz RFCLK at C303

500mVpp

OK

Check M/F-bus lines (X201,

pad 1,2,4) for shorts to GND,

also check R217,

R302/304/307, C232 and

V204

OK

nOK

nOK

nOK

MAD is faulty in all

probability, swap the

phone.

Change CCONT N201

Check values around

G502, N500, V502

If update is still not possible,

swap the phone, because MAD or

PCB should be the reason

© NMP 2001

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Product NHM-5 Repairhints
Service & Competence Center Europe Introduction Version 1.0 Approved
Customer Care Training Group Date 2001-03-27

PHONE INTERMITTENT SWITCHES OFF/DOESN`T SWITCH ON

Check first of all phone´s software version.
If version is < 4.06, make SW update and check if fault persists.
If phone switches off intermittent although phone SW is 4.06 or higher and battery is fully charged,
check phone´s HW-ID.
In case of HW-ID 0600, 0601,0602, 0603, 0604, 0607, 0608, 0612 and 0614 it is necessary
to change the following parts:

R559 from 2.2kΩ to 1kΩ (1430754)

C559 from 100pF to 47pF (2320552)
C560 from 1nF to 47pF (2320552)
C303 from 1nF to 47pF (2320552)

If HW-ID is 0615 or higher, the above mentioned changes are already done.

Other possibilities if SW- and/or HW-update do not solve the problem:

Check mechanical appearance of connector X203.
Check that pads of X203 on PCB are clean.
Check amplitude of 32.768kHz at C220, 3Vpp squarewave,
probably broken solderings under CCONT N201. Remove CCONT and replace it with µBGA soldering machine,
run energy management calibration after changing CCONT.
The same problem may be caused by N500, because the reference oscillator G502 ( 26MHz ) is divided to
13MHz system clock by HAGAR N500.

© NMP 2001

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