8310_repair_hints_v1_0.pdf

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Customer Care Europe & Africa
SCCE Training Group
©
2002 Nokia Mobile Phones
CONFIDENTIAL
NHM-7
Date 28.02.2002
1 (18)
Repairhints
Version 1.0 Approved
Repairhints
8310
NHM-7
©
NMP 2002
Checked by:
SCCE Training Group
Approved by:
SCCE
Customer Care Europe & Africa
SCCE Training Group
©
2002 Nokia Mobile Phones
CONFIDENTIAL
NHM-7
Date 28.02.2002
2 (18)
Repairhints
Version 1.0 Approved
GENERAL
-about Phoenix
When changing the phone mode with Phoenix, note that it is not possible to activate local mode directly from normal mode –
change to test mode first! In normal mode the phone works as it would be supplied by the normal phone battery. In local mode
the watchdog is disabled while in test mode only MCU-software is working without loading the PPM-file.
Using JBV-1 it is possible to change to local mode by suppling JBV-1 with +12VDC. If JBV-1 is supplied with +4VDC you have to
change the phone mode manually with Phoenix.
When using service jig MJS-46 take care not to supply more than +12VDC – the jig will surely be damaged!
-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.
All replaceable µBGA-components must be renewed after removing. Reflow with hot air fan 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).
Only use recommended Fluxtype and an appropriate amount of it.
-Broken balls, µBGA
-PCB handling & cleaning
To avoid damages of PCB and/or components through electrostatic discharging, handle the module in
ESD-suitable cases only. Always wear ESD-bracelets, which must be connected to earth bonding point.
Don´t make any loose wiring connections or do some other unqualified rework anywhere.
For cleaning use appropriate materials only, do not use scratching or rubbing tools.
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.
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.
-Realign after repair
©
NMP 2002
Checked by:
SCCE Training Group
Approved by:
SCCE
Customer Care Europe & Africa
SCCE Training Group
©
2002 Nokia Mobile Phones
CONFIDENTIAL
NHM-7
Date 28.02.2002
3 (18)
Repairhints
Version 1.0 Approved
INTRODUCTION
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 8310 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 built 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 does
not contain any circuit descriptions or schematics.
All measurements are made using following equipment:
Nokia repair SW
Data package
Digital multimeter
Oscilloscope
Spectrum Analyzer
RF-Generator /
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: training.sace@nokia.com
: Phoenix version 03.40.00
: Version 4.0
: Fluke 73
: Hitachi V-1565; Fluke PM 3380A/B
: Advantest R3162 with an analogue probe
: Rohde & Schwarz CMU 200
Copyright © Nokia Mobile Phones.
This material, including documentation and any related computer programs, is protected by copyright, controlled by Nokia Mobile
Phones. All rights are reserved. Copying, including reproducing, modifying, storing, adapting or translating, any or all of this
material requires the prior written consent of Nokia Mobile Phones. This material also contains confidential information, which
may not be disclosed to others without the prior written consent of Nokia Mobile Phones.
©
NMP 2002
Checked by:
SCCE Training Group
Approved by:
SCCE
Customer Care Europe & Africa
SCCE Training Group
©
2002 Nokia Mobile Phones
CONFIDENTIAL
NHM-7
Date 28.02.2002
4 (18)
Repairhints
Version 1.0 Approved
Contents
PREFACE
General
Introduction
2
2
3
CHAPTER 1
PHONE DOES NOT SWITCH ON
5
CHAPTER 2
PHONE SWITCHES ITSELF OFF
7
CHAPTER 3
FLASH UPDATE NOT POSSIBLE
8
CHAPTER 4
SIMCARD FAULTS
9
CHAPTER 5
AUDIO FAULTS
10
CHAPTER 6
CHARGING FAULTS
11
CHAPTER 7
USER INTERFACE FAULTS
12
CHAPTER 8
NO SERVICE
13
CHAPTER 9
RX DOES NOT WORK
16
CHANGE HISTORY
18
©
NMP 2002
Checked by:
SCCE Training Group
Approved by:
SCCE
Customer Care Europe & Africa
SCCE Training Group
©
2002 Nokia Mobile Phones
CONFIDENTIAL
NHM-7
Date 28.02.2002
5 (18)
Repairhints
Version 1.0 Approved
CHAPTER 1 PHONE DOES NOT SWITCH ON
Phone does not switch on
Check if
current consumption
is higher than
1 Ampere
yes
Usually N700 faulty
(remove L703 to ensure)
no
check if
current consumption
is around 15mA
(in Servicejig supplied with
4VDC)
no
yes
Try to make SW-update,
continue with section
"Flash update not possible" if
not ok
check VBATT
4VDC at both sides of Z260-
Z265
nOK
Check X101, also check
resistance of Z260-Z265
(0 Ohm)
OK
check 32.768kHz
at C209/210
nOK
change B200,
also check C209/210.
Probably D200 faulty
OK
check that
PWRONX decreases to 0V if
powerswitch is pressed
nOK
check / change
S300, R301
OK
check that
VIO, VCORE, VANA, VFLASH1
and VR3 rise to their intended
values
OK
nOK
check lines for shorts to ground
or interruption, change UPP if
necessary
check 13MHz reference clock at
R420
nOK
Check / change
G660, N600
OK
Check PURX 1.8VDC at J402
nOK
UEM D200 faulty in all
probability
Try to flash the phone.
If SW-update does not work,
continue with chapter
"Flash update not possible"
©
NMP 2002
Checked by:
SCCE Training Group
Approved by:
SCCE

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