NHM—2/5/6 Repairhints
Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved
SCCE Training Group Date 20.11.2002
CONFIDENTIAL 2 (44)
GENERAL
-How to use this document
Put the colored schematicsbehind 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.
-Broken balls, µBGA
All replaceable µBGA-components must be renewed after removing.
Reflow with hot air fan is strictly forbidden!
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.
-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.
Do not make any loose wiring connections or do some other unqualified rework anywhere.
For cleaning only use appropriate materials, 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 moistened 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.
-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. But never try to cover a fault by tuning.
CONFIDENTIAL 3 (44)
NHM—2/5/6 Repairhints
Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved
SCCE Training Group Date 20.11.2002
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 3310 / 3330/3410 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, e.g. Service Bulletins.
For that reason it does not contain any circuit descriptions or schematics.
All measurements are made by using following equipment:
Nokia repair SW : WinTesla Version 6.46/15.04.2002
DLL version : 311.15.00 / 26.06.2002
Nokia module jig : MJS -19
Digital multimeter : Fluke 73
Oscilloscope : Hitachi V-1565; Fluke PM 3380A/B
Spectrum Analyzer : Advantest R3161 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 the reader finds any
errors, 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
SCCE Training Group
Customer Care E&A
Meesmannstr.103
D-44807 Bochum / Germany
Email: training.sace@nokia.com
CONFIDENTIAL 4 (44)
NHM—2/5/6 Repairhints
Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved
SCCE Training Group Date 20.11.2002
Contents
PREFACE2
General2Introduction3List of flowcharts6List of figures6
Important Information 7
AM Suppression tuning 8
CHAPTER 1HW – CHANGES 11
Difficulties when removing B-Cover (SB13 / NHM-5) 11
Intermittent switch-off problem (SB 28 / NHM-5, SB 7 / NHM 6) 11
Correct component replacement in UB4_ 10 or later of NHM-5 (SB053) and NHM-6 (SB31) 12
HW Change description Overview of NHM-2/6 13
CHAPTER 2CHANGING OF D30114
Step by step description of changing the FLASH/EEPROM –combination D301 14-16
CHAPTER 3PHONE DOES NOT SWITCH ON17-19
CHAPTER 4FLASH UPDATE NOT POSSIBLE20
Failure message ”MCU boot failure,serial clock-/data line failure” 21
Failure message ”Algorithm code fail / alias ID missing” 21
Failure message ”External RAM failure” 21
CHAPTER 5PHONE SWITCHES OFF INTERMITTENT 22
CHAPTER 6LOW STANDBY / OPERATION MODE TIME23
Low standby / operation time 23-24
Off state current fail 24
Sleep mode current fail 24
CHAPTER 7 NOT CHARGING 25
Not charging 26
Nothing happens if charger is connected 26
Display message “Not charging” 26
Display message “Reconnect charger”
No or too low TX power GSM 900 33-37
No or too low TX power GSM 1800 37
Faulty spectrum 38
No RX-calibration GSM 900 possible 39-42
No RX-calibration GSM 1800 possible 42
Poor service or no network coverage, C508 faulty 43
CONFIDENTIAL 7 (44)
NHM—2/5/6 Repairhints
Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved
SCCE Training Group Date 20.11.2002
IMPORTANT INFORMATION
Changing of EEPROM D301
If it is necessary to change D301, take a look at chapter 2 on page 14 “Changing of D301” how to proceed.
Furthermore never change D301 if you have no permission to rewrite IMEI – otherwise all phone data will be lost!
To avoid further problems send the phone to a higher-level NOKIA Service Center.
Changing of COBBA N800
If it is necessary to change COBBA, you have to rewrite IMEI & SIMlock data and flash the phone!
Also RX/TX-values must be realigned.
Changing of CCONT N700
If it is necessary to change CCONT, you have to realign A/D values.
Changing components in RF-part
If it is necessary to change any main component in RF-part (IC´s, oscillators, filters…) you have to realign all RX/TX values.
In case of problems to tune RF-values of GSM1800 band, check in WinTesla Configure/Options if automatic rescan function
is activated for the phone. If selected, the band will change to GSM1800 but due to the rescan the phone changes back to
GSM900. To solve the problem deactivate the automatic rescan function if necessary.
CONFIDENTIAL 8 (44)
NHM—2/5/6 Repairhints
Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved
SCCE Training Group Date 20.11.2002
AM-suppression tuning in NHM-2/5/6
Due to a software failure in the latest NHM-2/5/6 DLL 311.15.00 it is necessary to run AM-suppression tuning in a special way,
as described in the following pages. In case you do not use this procedure the AM-suppression tuning values will not be saved and
WinTesla will not recognize the new values. So no warning message will be performed.
In the first step you have to activate AM-suppression tuning as usual (Tuning/AM Suppression…):
Click on the “Measure” button to get the next window, which shows the signal values you have to adjust, then click “OK”.
After correct AM-suppression tuning in EGSM900 (RSSI-level shown in the measurement window is < -86dBm) you get the
message to proceed the tuning in PCN. At this point do not press “YES” as, differently from the message box, the tuning values
will not be saved by choosing this button.
Click the button “Cancel” so that only the window shown on next page is performed on the screen.
CONFIDENTIAL 9 (44)
NHM—2/5/6 Repairhints
Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved
SCCE Training Group Date 20.11.2002
To save the tuning values you have to click the “Save” button in this window.
Afterwards start the tuning procedure again by pressing the “Measure” button, because tuning in PCN yet must be done.
Next appearing window is shown below. Press “OK” (it is not necessary to choose correct signal values).
After having done AM-suppression tuning in EGSM900 a second time, press the “Yes” button.
As effect the tuning values of EGSM900 will not be stored (but these tuning values have been stored before).
You will be shown the message box as on next page so that you can continue tuning in PCN band.
CONFIDENTIAL 10 (44)
NHM—2/5/6 Repairhints
Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved
SCCE Training Group Date 20.11.2002
Set generator to the signal values mentioned in the control box. Then press the “OK” button.
To save the tuning values of AM-suppression in PCN band, do not use the “Yes” button. As in the case of EGSM900 choose the
“Cancel” button and click the “Save” button in the remaining window. RSSI-level in PCN tuning must be < -90dBm!
Now AM-suppression has been performed in both EGSM and PCN and you can leave the tuning by choosing “Close”.
CONFIDENTIAL 11 (44)
NHM—2/5/6 Repairhints
Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved
SCCE Training Group Date 20.11.2002
CHAPTER 1: HW-CHANGES
Difficulties when removing B-Cover (SB13 / NHM-5)
Cut away the guiding pin of the D-Cover (see Figure 1-1), if customer critisizes bad removal of B-Cover.
After this procedure it is necessary to assemble the phone with a torque screwdriver prepared for 30Ncm!
Figure 1-1
Intermittent switch - off problem (SB17 / NHM-2, SB 28 & 55 / NHM-5, SB 7 / NHM-6)
The change of R301 from 2x 2.2 k? to 2x100 ? because of “Intermittet switches off” not needed anymore since HW 0813 on
UP4IV, 0814 on UD4, 0815 on UG4 (NHM-5; SB 55), HW 0817 on UW4, 0818 on UW4II and 0819 on UX4 (NHM-6; SB 32) as in
the new HW version this change is already done. The change of R301 should be a solution in earlier HW versions only.
All NHM-2 HW versions have the correct value implemented already in production (SB – 017).
“Intermittet switches off” could be caused also by old ST flash, i.e. from before Week 02/2001.
Therefore it is recommended to use newer ST Flash IC.
Note that SB 28 & 55 replaces the SB 12. Do not use this procedure anymore!
CONFIDENTIAL 12 (44)
NHM—2/5/6 Repairhints
Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved
SCCE Training Group Date 20.11.2002
Correct component replacement in UB4_ 10 or later of NHM-5 (SB053) and NHM-6 (SB31)
If changing the power amplifier (N502) & antenna switches (Z502) is necessary, it is recommended to replace with the same type
as the removed one.
The information in tables “PA vendor depent RF discrete component mount” and “Ant.sw./diplexer depent RF discrete components
mounts” in NHM-5/6 Service Manual must be followed if there is a really essential reason to use different type of power
amplifier or antenna switch as replacement
Only the following combinations of power amplifier and antenna are allowed for NHM-5/6:
- After changing Power Amplifier, TX Power Tuning has to be carrying out.
- After changing Antenna Switch, Tx Power Tuning and RX Calibrations have to be carrying out.
After the Power Amplifier replacements, additional it should be checked in which constellation R311 and R312 were assembled
(marked “X”).
If necessary, adjust the resistors in the corresponding order to the type of PA.
Use for it the table below (PA vendor detection) as reference. (NHM-5; SB 25)
This is important because of the differences between the three power amplifier versions in use.
In UP4 Hitachi PA has been used while UD4 includes Philips PA and UG4 uses RFMD power amplifier.
Last mentioned is available as spare part meanwhile.
For PCB version up to Version 09 PCB version 10 and later
PA vendor detection
PA vendor Part. No. R312 (PA_vendor2) R311 (PA_vendor1)
RFMD 435X231
Phillips 435X194
Hitachi 4350259
Mounted
Mounted
PA vendor detection
PA vendor Part. No. R312 (PA_vendor2) R311 (PA_vendor1)
CONFIDENTIAL 13 (44)
NHM—2/5/6 Repairhints
Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved
SCCE Training Group Date 20.11.2002
HW Change description Overview of NHM-2/6
Hagar GSM1800 Output
(UX4)
match
UB4_11 PCB
Hagar v5
Cobba ST optical shrink (Note 4)
UB4_12 PCB
X
X
X X
X X X
X X X X 10.24
X X
X X X X X 10.26
X
X
X
X X X X 10.25
X X X
X
X X X X 10.28
X X X X
X
X
X
Cobba TI A07 (Note 4)
Part list
UW4 UB4_10 X
UW4 UB4_10 X
UW4 UB4_11 X
UW4 UB4_11 X
UW4 UB4_11 X
UW4 UB4_12 X
UW4 UB4_12 X
UX4 UB4_10
UX4 UB4_10
UX4 UB4_10
UX4 UB4_10
UX4 UB4_11
UX4 UB4_11
UX4 UB4_11
UX4 UB4_12
UX4 UB4_12
UW4II UB4_10 X
UW4II UB4_10 X
UW4II UB4_10 X
UW4II UB4_11 X
UW4II UB4_11 X
UW4II UB4_11 X
UW4II UB4_11 X
UW4II UB4_11 X
UW4II UB4_12 X
UW4II UB4_12 X
UW4II UB4_12 X
UW5 UB4_12 X
UW5 UB4_12 X
UW5 UB4_12 X
UW5 UB4_12 X
PCB version
Hitachi PA
Philips PA
RFMD PA
X
X
X
X
X
X
X
X
X
Antenna switch Matsushita
Antenna switch MURATA
X
X
X
X
X
X
X
X X
X X
X X
X X
X X
X X
X X
X X
X X
X X
X X
X
X X
X
X
X X
X X
X X
X X
X X
X
X
X
X
GSM TX Out match New
MAD2WD1-Hagar
s
VCO 4.0GHz FDK
VCO 4.0GHz Matsushita
VCTCXO NDK
VCTCXO Toyocom
TX SAW filter Epcos (Note 3)
TX SAW filter Panasonic (Note 3)
X X
X X
X X
X X
X X
X X
X X
X
X
X
X X
X X
X X
X X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Cobba TI A12 (Note 4)
X
X X
X X
X X
X X
X X
X X
X X
X X
X
X
X
X
X
X X X X X
X X X X X
X X X X X
X X X X
X X X X
X X X X
CONFIDENTIAL 14 (44)
NHM—2/5/6 Repairhints
Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved
SCCE Training Group Date 20.11.2002
CHAPTER 2: CHANGING OF D301
This chapter describes step by step how to change FLASH/EEPROM-combination D301 in NHM-2/5/6 phones:
If you want to change D301 the first you always have to do is a backup of the phone identity information.
Therefore use WinTesla. Under “View” open the window “Phone Information”:
Figure 2-1
If you have no possibility to save this data (e.g. phone does not switch on because of defect D301), it is necessary to give the
phone a new identity!
Having saved the phone identity information, you can now remove D301 and resolder the spare part – always use approved µBGA
rework machine for changing any µBGA!
Because of the empty Flash the phone will not switch on, after changing D301. So the next action is to make a SW-update.
Start WinTesla and choose Product / Open / NHM-5 and press ok. Now you will receive the following message:
Figure 2-2
If you select Yes, WinTesla will start and you can choose Dealer / Flash Phone, and the window shown on the next page
appeares: