Page 1
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
version 1.0 / 05.11.1999 Page 1 of 37
Page 2
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
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 3210 phones.
It contains a lot of collected tips and hints, to find failures and repair solutions easily.
I will also 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 with using of following equipment:
Nokia repair SW : Wintesla Version 6.10
DLL version : NSE8/9 version 2.41.05
Nokia Module Jig : MJS-13
Digital multimeter : Fluke 73
Oscilloscope : Hitachi V-1565; Fluke PM 3380A
Spectrum Analyzer : Advantest R3361C with an analogue probe
RF-Generator / : Rohde & Schwarz CMD 53
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 & Analysis Center Europe
Meesmannstr.103
D-44807 Bochum / Germany
Email: ams.sace-training@nokia.com
version 1.0 / 05.11.1999 Page 2 of 37
Page 3
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
Contents
INTRODUCTION 2
OESN'T SWITCH ON
D
4
O FLASH UPDATE POSSIBLE
N
NTERMITTENT DOESN'T SWITCH ON
I
OT CHARGING
N
OW STAND BY TIME/ OPERATION TIME
L
HONE SWITCH IT SELF OFF
P
ONTACT SERVICE
C
ONTACT SERVICE
C
ONTACT SERVICE
C
LOCK TIME OR USER SETTINGS PROBLEMS
C
UZZER FAILURES
B
NTERNAL AUDIO FAILURES
I
ISPLAY FAILURES
D
EYPAD FAILURE
K
NSERT
I
SIM
P
SIM CARD 25
CARD NOT ACCEPTED
RODUCT CODE
COBBA
-CCONT
EPROM CHECKSUM FAIL
– E
NSE-8 28
OESN'T SWITCH ON
/ D
PARALLEL /SERIAL BUS FAIL
INTERFACE FAIL
, SIM LOCK
FAILURE
7
8
8
11
13
15
17
18
19
20
21
23
24
26
ECOMMENDATION FOR REPAIR ACTIONS IN THE
R
OW RECEIVER SIGNAL STRENGTH INDICATOR
L
O SERVICE
N
ALL BREAKS
C
O
N
EASUREMENT POINTS
M
OWER OR TO LOW
TX-P
O SERVICE
/ N
NSE-8 37
RF-
AREA
30
30
30
33
34
version 1.0 / 05.11.1999 Page 3 of 37
Page 4
Doesn't Switch on
CONFIDENTIAL
Service & Analysis Center Europe
Phone doesn't switch on, section: DC / DC converter
Training Team
Check VB (Battery 2,4V-3V)
on L102
Yes
ch eck th e solder ings and
resistance of L102 "0Ohm"
Yes
ch eck th e connection between
L102 and R132 (0 Ohm)
Yes
check pin 3 from V105
on="low" status 0Ohm
Yes
ch eck the voltage on V 101
anode 2,6V; cathode 3,2V
No
No
No
No
No
check connector X101/ X102
change if bend or soiled
resolder or chan ge L102
Swap the phone if the
connecti on is open
check V109 an d the
respective voltage devider s
R131,132,134,143,144
Check 600KHz switching
frequency on Pin 4,5,12,13 of
V105
No
ch eck solder of V105 or
change if necessary
Yes
DC/ DCconverter is oK!
continue with CCONT
Check 1,2V operation voltage
Yes
on Pin 15 of V105
No
ch eck solder of V105 or
change if necessary
check also R102, R105, R112
version 1.0 / 05.11.1999 Page 4 of 37
Page 5
CONFIDENTIAL
Phone doesn't switch on (CCONT part)
Service & Analysis Center Europe
Training Team
check if PWRON (3,2V DC)
drops to 0V during pressing
the pwr button on R413.
Yes
check 32,768KHz, 700mVpp
on B100
Yes
check 32.768KHz squarewave
signal on C149
Yes
Check PURX (2,8V DC)
afterpress ing pwr on button on
R303
Yes
Check SLEEPX (2,8V DC) on
J340
Yes
No
No
No
No
No
change S4 1 6 if it is
mechanical broken
change B100 if frquency or
amplitude of the singnal in not
oK
change N100
change N100
MAD is f aulty in all probability.
Swap the phone, because
MAD is not changeable
No
Check also C147, C148,
C153
Check VXO (2,8V DC) on
C102
Yes
Check Vbb (2,8V DC)
Yes
Check Vref (1,5V DC) on
C123
Yes
check 13 MHz clk frequency
on C301
Yes
Try to Flash the phone
No
No
No
No No
No
change N100
change N100
change N100
check 13MHz on G701
See section :
can't flash the phone
check solder of G700 or
change if neccessary
version 1.0 / 05.11.1999 Page 5 of 37
Page 6
CONFIDENTIAL
Battery connectors X101/ X102 / bend out dirty
•
Check if VBATT and Gnd are connected
Power on/off switch S416 faulty/ mechanical broken
•
Check if 3,2V on R413 drops of 0V during pressing the Power on button
L102 poor soldering
•
Check the soldering of L102
• Check the resistance in "off mode=0Ω"
•
Resolder L102 or change it
N100 CCONT faulty
•
Check if 3,2V on R413 drops of 0V during pressing the Power on button
•
Check if there is a 32.768 kHz square wave on C149
•
Check if PURX on R303 goes up to 2.8 V DC
•
Check if VXO on C102 goes up to 2.8 V DC
•
Check if VBB on C117 goes to 2,8V DC
•
Check if Vref on C123 goes to 1,5V DC
Service & Analysis Center Europe
Training Team
B100 faulty 32,768KHz
•
Check 32.768 KHz ; 700mVpp clock signal on B100
•
Check also C147, C148, C153
G701 faulty 13 MHz
•
Check VCC 2,8V DC on G701
•
Check 13 MHz output frequency; 1,2 Vpp on the output pin
VB to R132 board faulty
•
Check the battery voltage 2,6V on L102
•
Check the same voltage on R132
• Check if the connection from R132 to L102 are 0Ω
•
Don't forget to put the additional label on the PCB, it save the layer (see Service Bulletin 11)
D200 MAD faulty
•
Check if there is a 32,768 KHz square wave on C149
•
Check the 13MHz main clock oscillator on C301 800mVpp
•
Check VBB 2,8 V DC on C117
•
Check PURX 2,8 V DC on R303 (comes from CCONT)
•
Check SLEEPX 2,8 V DC 0n measurement point J 340
•
MAD are probable faulty
•
MAD are not interchangeable swap the handset
V105 DC/DC converter faulty
•
Check the voltage difference on the diode V101 Anode: 2,6V DC, cathode: 3,2V DC
•
Check the 600KHz switching frequency on pin 4, 5, 12, 13 from V105
•
Check the 1,2V operation voltage on pin 15 from V105
• Check if pin 3 from V105 have low status ≈0V, if not check V109 and the respective voltage dividers R131, R132,
R134, R143, R144
•
Change the V105
version 1.0 / 05.11.1999 Page 6 of 37
Page 7
CONFIDENTIAL
No flash update possible/ Doesn't switch on
Doesn't switch on, section: FLASH (update not possible)
Change the switch
of servi ce frame/
battery to local, if
phone switches
itself off
Service & Analysis Center Europe
Training Team
oK
Check 32,768KHz
sleep clock on
C149
oK
Check 13MHz
RFclk on C301
oK
Check VBB 2,8V
DC
oK
Try to flash the
phone, if power
consumtion is about
20mA
wrong
wrong
wrong
continue with
section CCONT
continue with
section CCONT
continue with
section CCONT
Swap phone,
because MAD or
PCB should be the
reason
same
massage
"MCU boot failure"
appears during
flashing
Yes
Change FLASH
and try to update
again
no massage
phone is oK
same
massage
"External RAM
error" appears
during flashing
Yes
Resolder RAM or
change if
neccessary
try to update again
no massage
phone is oK
version 1.0 / 05.11.1999 Page 7 of 37
Page 8
CONFIDENTIAL
Service & Analysis Center Europe
D301 Flash faulty
•
If the handset switches it self off, change the switch of the service frame to local mode
•
Check the 32,768KHz Sleep clock signal on C149
•
Check the 13MHz main clock oscillator on C301 800mVpp
•
Check the VBB voltage on C117
•
If power consumption is approximately 20mA try to flash the phone
•
If you get a error message during the flashing process, change the flash and try it again
D302 RAM faulty/ poor soldering
•
Check if the handset current consumption is approx. 20mA
•
Check the 32,768KHz Sleep clock signal on C149
•
Check the 13MHz main clock oscillator on C301 800mVpp
•
Check the VBB voltage on C117
•
Resolder RAM
•
Try to flash the handset
•
Change the RAM if you get a error message during the flash procedure "external RAM error"
Training Team
Intermittent doesn't switch on
D301 FLASH faulty
•
Check if the handset switches on after reflashing the memory
•
D301 Flash internal fail or poor soldering balls
Not charging
Not charging (1)
confirmation or error ma ssag e/ beep is not c oming from phone if charger is pluged in
Check
V_CHARGE_IN
C100
not oK
on
oK
Change N101
(PSCC)
check system
connector X503,
clean contacts &
PCB or change if
necessary
oK
Check resistance
0f f use (F100) and
L100 (0Ohm)
change if
necessary
version 1.0 / 05.11.1999 Page 8 of 37
Page 9
CONFIDENTIAL
Service & Analysis Center Europe
Not charging (2)
error message/ beep is coming from phone if charger is pluged in
Training Team
Do the energy
failed oK
Charge voltage
failed
Yes
management
calibration
Check BTEMP A/D
in ADC readings
(317=25°C)
Check VCHAR on
voltage devider
R100 / R101 (10:1)
=0,8V
not oK
not oK
not oK
oK
Try to c harge after
calibration
Check t he
connection
between R125 and
R127
oK
check NTC resistor
R127 (47Kohm)
Change N100
(CCONT)
not oK
swap phone if there
is a disconnection
Battery voltage
failed
Yes
Check resistance
0f fuse (F100) and
L100 (0Ohm)
change if
necessary
oK
Check R103 if it is
mec hanical broken
check voltage
devider R106 /
R111 (1:2)
not oK
Check battery
connector X101
X102. change if
bended
Yes
oK
Change R103 and
N101 (PSCC)
Cange N100
(CCONT)
version 1.0 / 05.11.1999 Page 9 of 37
Page 10
CONFIDENTIAL
If you are using wintesla NSE8/9 DLL 2.41.03 or lower version the error message "current calibration fail" will
appear in every charge tuning calibration test! S ee Service manual cha p ter "service software instructions"
page 19 (Energy Management Calibration)
Service & Analysis Center Europe
Training Team
X503 System connector faulty
•
Check the mechanical appearance of the connector
•
Clean the contacts on the board or change the connector if necessary
F100 faulty
• Check resistance of F100 (0Ω)
• Check the resistance V_charge line to ground (OK=10KΩ)
N100 CCONT faulty/ poor soldering
•
Check if any A/D values are out of limit but the corresponding DC voltages is OK (wintesla/ local mode/ Testing/
ADC Readings…)
•
If DC voltages are wrong, check corresponding voltage dividers (R100, R101)
•
Check PWMOUT on R117 or R142 (1 Hz standard / 32 Hz fast)
R103 broken and N101 PSCC electrical faulty
•
Check if the handset doesn't charge with the ACP-9 fast charger
•
Check the mechanical appearance of the varistor R103
•
If it's broken change it, in this case change also N101 PSCC
R125 and R127 connection faulty
• Check if any A/D value is out of limit special BTEMP (317≅25°)
•
Check the connection between R125 and R127
• Check the NTC resistor R127 47KΩ
version 1.0 / 05.11.1999 Page 10 of 37
Page 11
Low stand by time/ operation time
Low standby/ operation mode ti me
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
ch e ck p ower consumtion of the phone:
off st ate > 0-1mA
sleep mode > 2-8mA
call mode GSM 900 / GSM 1800 > 0-1A
oK
not Ok oK
Lift L505
not oK
Lift L506
not oK
lift capacitors
C111-113, C115
not oK
Lift L105
not oK
oK
oK
oK
change N500 if
consumtion is oK
change N501 if
consumtion is oK
change
corresponding if
consumtion is oK
check consumtion of
N700 > lift R745
G700 > lif t R741
G702 > lif t R742
not oK
change regulator
N702
oK
change
corresponding
component
check
outpu tvoltages of
CCONT
check the charging
circuit, check energy
management
calibration
oK
Calibrate RX and TX
values of the phone
Note: The standby time depends al so on the network side, like: PRP (paging repeat
period time), signal strength (min -98dBm), location updates
and on the user handling of the phone (lights on or of, memory act ivities , games etc.)
not oK
not oK
oK
refer to section: "not
charging (2)"
refer to section:
"RX TX failures"
not oK
check components
in corresponding
output lines
oK
change N100
CCONT
version 1.0 / 05.11.1999 Page 11 of 37
Page 12
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
C111, C115, C113 faulty
•
Check the current consumption in different operation modes (refer to the table below)
•
Check if the high current consumption comes from the VB, Vout or output voltages of CCONT
• Disconnect coil by coil L105 (→N702) L505, L506 (→PA's) and check consumption again
•
Check and disolder C111, C115 and C113
•
calibrate Battery value if charging stops to early or battery is to hot after charging (see also chapter "Not
charging)
Figure 1: current consumption values
Function mode Minimum current in mA Maximum current in mA
Off state 0 1
Sleep mode 2 8
Call mode GSM 900 0 1000
Call mode GSM 1800 0 1000
version 1.0 / 05.11.1999 Page 12 of 37
Page 13
Phone switch it self off
CONFIDENTIAL
Phone intermittend switches off
Service & Analysis Center Europe
Training Team
Check if this happens
only with 5V SIM-cards
and if the phone works
probably with 3V SIM's
not oK
Ch eck t he 5V
supply voltage on
C136 with an
oscilloscope
not oK
Change C131 if the
noise is higher than
350mVpp
oK
Check X101 and X102,
if poor soldered, bent
or soiled
oK
Check amplitude of
32,768KHz square
wave at C149
oK
Check amplitude of
13MHz
RF Clk C301 (2,8Vpp)
oK
Check VBB 2, 8V DC
on
C117
not oK
not oK
not oK
not oK
Resold er, change or
clean the connector
Change or check
soldering of B100,
C147, C148, C153,
N100
Change or check
soldering of G701,
V702...
Change or check
soldering of N100,
C117
C136 10μF/10V
•
Check, if the handset doesn't switch off with 3V SIM-Cards
•
Check that the 5V VSIM voltage on the capacitor C136 is approximately 4,8V-5,2V with
maximal 350mVpp noise overlap (view the diagram below)
version 1.0 / 05.11.1999 Page 13 of 37
Page 14
CONFIDENTIAL
Figure 2: Measurement p o int J343 COBBA RESET
Service & Analysis Center Europe
Training Team
version 1.0 / 05.11.1999 Page 14 of 37
Page 15
CONFIDENTIAL
Contact service COBBA parallel /serial bus fail
Contact Service
Check via WINTESLA / Testing / Selftes t
which kind of selftest is fail
COBBA parallel/
serial bus failed
Yes
Service & Analysis Center Europe
Training Team
check COBBACLK
13MHZ/ 3,2Vpp on
J201
oK
check VBB 2,8V on
C117
oK
Check VCOBBA 2,8V
DC on C148
oK
not oK
not oK
not oK
Check 13MHz RFC
on C301
oK
swap the phone
because MAD or PCB
should be the r eason
check soldering or
change N100, C117
Change or check
soldering of N100,
C148
not oK
check soldering or
change G701, V702
Check COBBA reset
pulse during
initialisation routine
on J343 (see diagram)
oK
Change the COBBA
not oK
swap the phone
because MAD or PCB
should be the r eason
version 1.0 / 05.11.1999 Page 15 of 37
Page 16
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
N200 COBBA faulty /solder balls broken
•
Check VBB 2,8V DC on C117 near to CCONT
•
Check VCOBBA 2,8V DC C148 near to COBBA
•
Check COBBACKL 13MHz 3,2Vpp on J 201 (see the diagram below)
•
Check COBBA reset impulse during the initialisation routine on J343 (see the diagram below)
•
Change COBBA and write the IMEI and SIM-LOC DATA back to the phone
•
If the error persist, the MAD or the Board should be the reason
•
SWAP the handset because MAD is not changeable
Note! Rewrite SIMLOCK and IMEI entries with use of the Nokia security SW (SSSW) and make a SW-update or send
this phones to the SACE, if this procedure is not permitted to you
Figure 3: 13MHz Clock sig nal f or the COBBA
Figure 4 Measurement p o int J343 COBBA RESET
version 1.0 / 05.11.1999 Page 16 of 37
Page 17
Contact Service-CCONT interface fail
Contact Service
Check via WINTESLA / Testing / Selftest
which kind of selftest is fail
CCONT interface failed
Yes
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
Check if PWRON 3,2V
drops to 0V on R413 during
pressing the power button
Yes
Check the 32.768KHz
square wave on C149
Yes
Check if PURX goes up to
2,8V DC on R303
Yes
Check if VCXOPWR goes
up to 2,8V DCon J340
Yes
Check if VXO goes up to
2,8V DC on C102
No
No
No
No
No
Che ck sol dering or ch ange
R413, S416
Change or check soldering
of B100, C147, C148, C153,
N100
Change C CONT
sw ap the ph one becau se
MAD or PCB s hould be the
reason
change CCONT
Yes
Check if RFC 13 MHz at
C301 (2,8Vpp)
Yes
Check if VBB goes
up to 2,8V DC on C117
Yes
Check if VREF g oes up t o
1,5V DC on C123
No
No
No
Change or check soldering
of G701, V702...
change CCONT
change CCONT
version 1.0 / 05.11.1999 Page 17 of 37
Page 18
CONFIDENTIAL
N100 CCONT Faulty
•
Check if 3,2V on R413 drops to 0V during pressing the Power on button
•
Check if there is a 32.768 kHz square wave on C149
•
Check if PURX on R303 goes up to 2.8 V DC
•
Check if VXO on C102 goes up to 2.8 V DC
•
Check if VBB on C117 goes to 2,8V DC
•
Check if Vref on C123 goes to 1,5V DC
•
Change the CCONT
Contact service – Eeprom checksum fail
Contact Service
Check via WINTESLA / Testing / Selftest
which k ind of selftest is f ailed
Service & Analysis Center Europe
Training Team
EEPROM tune
checksum f ai l
Yes
Check via W I NTESLA >
produ ct inf or mation, if any
phone data, like: IMEI,
product code, PSN, etc. is
corrupted
Reset the phone
No
Yes not oK
(don't use the full
factory set if it is not
permitted to you to
rewrite the IMEI)
check 2,8V DC on pin
8 of Eeprom
oK
EEPROM
internal fault
Yes
not oK
Phone is Ok, if
CONTACT
SERVICE dissapears
Check VBB on C117
change the EEPROM
if it is per mitt ed to
you, to rewrite the
IMEI
Service Bulletin
general 26
send this phones to
the SACE Bochum
if it is not p ermit ted t o
you to r ewrit e t h e
IMEI
version 1.0 / 05.11.1999 Page 18 of 37
Page 19
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
D303 Eeprom faulty
•
Check with wintesla if IMEI or product data are corrupted
•
Check 2,8V DC on pin 8 of Eeprom
•
Don't use the "Full factory set" with wintesla, otherwise the Original IMEI will be change to
"65656565…"
•
Change the Eeprom if it's permitted to you and write all ID data (IMEI, product code…) back
•
If you aren't allowed to change the Eeprom and the IMEI is missing, write a note with a little
comment, and send it together with the phone to the SACE
Note! Rewrite SIMLOCK and IMEI entries with use of the Nokia security SW (SSSW) and make a SW-update or send
this phones to the SACE, if this procedure is not permitted to you
Clock time or user settings problems
Clock time problems / wrong ringingtone speed
check 32,768K Hz
clock freq ue ncy o n
C149 CCONT
Check solderin g o r
change B100,
C147,C148,
C153,N100
Clock time / Ringing tone is to fast or to slowly
32,786KHz Sleep oscillator B100
•
Check that the sleepclk 32.768KHz square wave frequency on pin C149 isn't higher or lower
•
Check the crystal B100, C147, C148, C153, N100
•
View also the Service Bulletin 017 (capacitors C148, C153 change the value)
version 1.0 / 05.11.1999 Page 19 of 37
Page 20
Buzzer failures
check buzzer control signal
from MAD 2,8Vpp on N400
pin 3, use WI NTESLA /
testing / audio / level 1,
1000Hz
oK
not oK
CONFIDENTIAL
Buzzer failure
swap the phone because
MAD or PCB should be the
reason
Service & Analysis Center Europe
Training Team
Check 3,9V DC VDC_OUT
on pin 1 of N400 and "+" of
B400
oK
check buzzer signal 5Vpp
on pin 6 of N400 and "-" of
B400 (use same settings)
oK
not oK
not oK
Check connection to
VDC_OUT on V105 pin 1,
16
check VBB 2,8V DC on pin
2 of N400
oK
change N400change B400
not oK
Check connection to VBB
2,8V DC on C117
B400 / board connections broken
•
Check the buzzer control signal from the MAD on pin 3 of N400 2,8Vpp 1KHz (use WINTESLA / testing / audio
Level 1, 1000Hz)
•
Check VDC_OUT 3,9V DC pin 1 N400 and "+" of buzzer
•
Check VBB 2,8V DC on pin 2 N400
• Check the buzzer Signal on "-" of buzzer ≈ 5Vpp 1KHz
•
Check the board connection pin 6 of N400 to "-" of buzzer
•
Change the buzzer
version 1.0 / 05.11.1999 Page 20 of 37
Page 21
Internal audio failures
CONFIDENTIAL
Internal audio failure
Service & Analysis Center Europe
Training Team
speaker doesn't work
(receiving audio)
microphone doesn't
work
check con nection
Yes
Yes not OK
between L202, L203
to earphone pads
(0 Ohm)
OK
check the mechanic
and
impedance of
speaker
(about 30 Ohm)
check contacts and
impedance of
microphone (800
Ohm)
Ok
check the
microphone bias
voltage 1,7V on C242
(audio loop enable)
not OK
not OK
not OK
change L202 or L203
change speaker
change microphone
check voltage on
R214
not OK
not OK
not OK
check the
resistance between
the lines and
gruond
>1MOhm
check the
connection
X503-->PCB for
soiled
change N200
COBBA
Ok
change N200
COBBA
Check audio signal
on C258, C259
Check 2,8V D C VBB
on C117 and 2,8V
DC VCOBBA on
check COBBACLK
13MHz 3,2Vpp on
OK
COBBARESET on
Ok
C148
Ok
J201and
J343 during
initialisation
not OK
not OK
not
follow signal back to
OK
the microphone
Check funct ion of
CCONT
swap the phone
because MAD or
PCB should be the
reason
version 1.0 / 05.11.1999 Page 21 of 37
Page 22
CONFIDENTIAL
L202, L203 faulty
• Check resistance from L202, L203 to the earphone pads normal 0Ω
Check the resistance also from L202,L203 to ground and between both lines (normal high resistance >1MΩ)
•
Service & Analysis Center Europe
Training Team
Speaker
No / quiet / distorted receiving audio signal
•
Check the mechanic of speaker, contacts, membrane, soiling
• Check resistance of speaker (about 30Ω)
Microphone
No / quiet / distorted transmitting audio signal
•
Check contacts of microphone
Check resistance of microphone (about 800Ω)
•
Check the microphone voltage 1,7V DC on C242 (wintesla/ Testing/ Audio/ internal/ Loop on)
•
Check the audio signal on C258 and C259
X503
•
Check microphone spring contacts
•
Check spring contacts to the board (change connector if bent)
•
Clean the contact pads on the board
N200 COBBA faulty
•
Check VBB 2,8V DC on C117 near to CCONT
•
Check VCOBBA 2,8V DC C148 near to COBBA
•
Check COBBACKL 13MHz 3,2Vpp on J 201
•
Check COBBA reset impulse during the initialisation routine on J343 (see the diagram "CONBBA RESET")
•
Change COBBA and write the IMEI and SIM-LOC DATA back to the phone
•
If the error persist the MAD or the Board (PCB) should be the reason
•
SWAP the handset because MAD is not changeable
Note! Rewrite SIMLOCK and IMEI entries with use of the Nokia security SW (SSSW) and make a SW-update or send
this phones to the SACE, if this procedure is not permitted to you
version 1.0 / 05.11.1999 Page 22 of 37
Page 23
Display failures
CONFIDENTIAL
Display failure
Service & Analysis Center Europe
Training Team
missing line
segments or no
display function
no dis play back
light
check the display
Yes
of mechanical
appearance
check VDC _O UT
3,2VDC on V 406 ,
Yes
V409, V412, V413
not ok
not oK
Check VBB 2,8V
oK
DC on C400 and
check the VB B
voltage on V117
check the LCD_LED lin e
pin 9 N400 to V406,
oK
V409, V412, V413
"
on"=1,2V DC/
"off"=1,9V DC
R420
not oK
oK
change the
oK
because the
PCB i s faulty
check pin 1 N400
VDC_OUT, pin 2
faulty
VBB, LCD_LI GHT
pin 7 "on"=2,8V,
R415 12K Ohm pin 8
display
swap the
handset
to ground
If no VDC_Out
voltage PCB will
be brocken
Black lines on the display or no display function
•
Check if the display have some mechanical breaks around the corners
•
Check VBB 2,8V DC on C400 and R420
•
Change the Display
version 1.0 / 05.11.1999 Page 23 of 37
Page 24
Figure 5: Faulty display
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
No display back light
•
Check VDC_OUT 3,2V DC on V406, V409, V412, V413
•
Check the LCD line pin 9 of N400 and cathode of V406, V409, V412, V413 Light "on"=1,2V DC ;
"off"=1,9V DC. (Use Wintesla/ Testing/ userinterface/ 1.Test Pattern "on")
•
Check the LCD_light enable line on pin 7 / N400, LCD_LIGHT "on"=2,8V DC
• Check the resistor R415 12KΩ pin 8 / N400 to ground
Keypad failure
Keypad failure
check the
mechanical
structere of t he
Keymat pins
oK
check the
dome-sheet and
the PCB module if
soiled
oK
not oK
not oK
change the keymat
change the
dome-sheet and
clean the PCB
check ROW and
COL lines
connection
between the keys
not oK
if the are some
interruption in one
line the PCB will
be faulty
version 1.0 / 05.11.1999 Page 24 of 37
Page 25
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
Keymat mechanical faulty
•
Check the bottom of the keymat if no pins are broken or mechanical damaged
Board / Dome-sheet soiled
•
If there are only one or two keys without function, check and clean the board and dome-sheet if soiled
Board failure
•
If there are four keys without function and all of them are on them same ROW or COL line, check the connections
between the keys and ground
•
If any line is interrupted between the Keys, swap the handset because PCB is faulty
Insert SIM CARD
Insert SIM card
the phone doesn't register the SIM card
check solderings and contacts of
X100, SIM card reader
oK
check pin 4 (SIMDATA) , pin 3
(SIMCLK), pin 2 (SIMRST), pin
1/5 (VSIM) of SIM-CARD reader
not oK
not oK
resolder X100 or
change if any
contact is bended
change N100
CCONT
not oK
not oK
swap the phone if
any wire to the SIM
card reader has
teared off
change V112 if SIM
-DATA, -CLOCK,
-RESET or VSIM is
short circuited to
ground
not oK
check also
R115,R116,C137,C
138,C139,C140,
C141
version 1.0 / 05.11.1999 Page 25 of 37
Page 26
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
X100, SIM card reader
•
Check soldering
•
Check contacts (change connector if bent)
N100, CCONT
•
Check SIM card –DATA ( Pin 4 SC-reader), -Clock 3,25MHz (Pin 3 SC-reader), -Reset (Pin 2 SC-reader) and VSIM
3V/5V DC (Pin 1/5 SC-reader) depends to the SIM card
V112
•
Change component if SIM -DATA, -Clock, -Reset or VSIM is short circuited to
ground
•
Check also R115, R116, C137, C138, C139, C140, C141 for short circuit or not capacity
SIM card not accepted, SIM LOCK failure
SIM card not
accepted
appears on
LCD after
entering the
PIN code.
Yes
open
WINTEASLA
and activate
quick /RF-info
SIM card not accepted (SIM LOCK active)
compare the data
entries MCC+MNC
Yes Ok
with the listed
entries of the
respective product
code
not oK
SIM LOCK is oK!
correct the SIM
LOCK settings
with use of the
Nokia security SW
(SSSW) or send
those phones to
the SACE
!!!Take note!!!
if the Msin data field is
closed to any special
IM SI number range,
the operator is
ONLY
allowed to open the
SIM LOCK!!!
if SIMLOCK is not
active, but
phone still doesn't
accept SIM,
change N200,
COBBA
correc t the SIM LOCK
settings with use of
the Nokia security SW
(SSSW) after
changing of COBBA
or send those phones
to the SACE
version 1.0 / 05.11.1999 Page 26 of 37
Page 27
CONFIDENTIAL
•
If message "SIM Card not accepted" appears on LCD after entering PIN code,
a SIM LOCK is probably activated in this phone
•
Or COBBA has been changed and not reprogrammed with the SIM-LOC DATA
•
Initialise phone into normal mode and activate Quick/ RF-info (WINTESLA)
compare the SIM LOCK entries with the references from the operator. Look at Figure: List of current SIM-LOC…
Service & Analysis Center Europe
Training Team
N100, CCONT
•
Refer to insert SIM Card procedure
N200, COBBA
•
Change COBBA if all SIM LOCK entries and SIM-CARD signals
from CCONT are OK
Note! Rewrite SIMLOCK and IMEI entries with use of the Nokia security SW (SSSW) and make a SW-update or send
this phones to the SACE, if this procedure is not permitted to you
version 1.0 / 05.11.1999 Page 27 of 37
Page 28
Product Code NSE-8
Figure 6: List of current S IM LOC phones NSE-8
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
Product-Code
SIM-LOCK-DATA
NSE-8
0503478 Mcc+Mnc 20820
Msin ??????????
0503566 Mcc+Mnc 20210
Msin 99????????
0503565 Mcc+Mnc 20205
Msin 90???????0
0503564 Mcc+Mnc 20201
Msin 1?????????
0503567 Mcc+Mnc 23830
Msin ??????????
0503298, 0503299 Mcc+Mnc 20801
Msin ??????????
0503593 Mcc+Mnc 26001
Msin ??????????
0503594, 0505102 Mcc+Mnc 26801
Msin ??????????
0503575 Mcc+Mnc 21630
Msin ??????????
0503576 Mcc+Mnc 21601
Msin ??????????
0505105 Mcc+Mnc 26002
Msin ??????????
0505100 Mcc+Mnc 23433
Msin ??????????
0505101 Mcc+Mnc 23430
Msin ??????????
0505107 Mcc+Mnc 28601
Msin ??????????
0505108 Mcc+Mnc 28602
Msin ??????????
0505104 Mcc+Mnc 26003
Msin ??????????
0505110 Mcc+Mnc 27201
Msin ??????????
0502159, 0502993,
0502994, 0503161
0503207, 0503286,
0503287, 0503288
0503583, 0505106,
0505112, 0503789
0503824
NO SIM-LOCK
Operator
BOUYGUES
TELESTET
PANAFON
COSMOTE
MOBILIX
OLA
POLKOMTEL
TELECEL
WESTEL
PANNON
ERA
ORANGE
ONE2ONE
TURKCEL
TELSIM
CENTERTEL
EIRCEL
version 1.0 / 05.11.1999 Page 28 of 37
Page 29
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
Product-Code
SIM-LOCK-DATA
NSE-8
0505109 Mcc+Mnc 23203
Msin ??????????
0505111 Mcc+Mnc 65510
Msin ??????????
0503708 Mcc+Mnc 23002
Msin ??????????
0503706 Mcc+Mnc 20416
Msin ??????????
0503707 Mcc+Mnc 26806
Msin ??????????
0503785 Mcc+Mnc 23102
Msin ??????????
0503788 Mcc+Mnc 20420
Msin ??????????
0503825 Mcc+Mnc 23002
Msin ??????????
0503826 Mcc+Mnc 22601
Msin ??????????
0503827 Mcc+Mnc 20412
Msin ??????????
Mcc+Mnc
Msin ??????????
Mcc+Mnc
Msin ??????????
Mcc+Mnc
Msin ??????????
Mcc+Mnc
Msin ??????????
Mcc+Mnc
Msin ??????????
Mcc+Mnc
Msin ??????????
Mcc+Mnc
Msin ??????????
Operator
Maxmobil
MTN, South Africa
Eurotel, Czech Rep.
BEN, Netherlands
TMN, Portugal
Mobilkom-A1, Austria
Duchtone, Netherlands
Eurotel-Contracrt, Czech
Rep.
Connex
Telfor, Netherlands
version 1.0 / 05.11.1999 Page 29 of 37
Page 30
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
Recommendation for repair actions in the RF- area
To prevent some additional faults please take care of following recommendations for repairing the RF-area
•
Don't use so much flux that it will go through the board and soiled the keyboard area
•
Clean after every repair time the rest of the flux from PCB
•
Don't make any loose wiring connection on the board
•
To change some components it is necessary to remove the shield from the PCB, use matching nozzles for the
solder machine. Don't cut it partially and solder the "old" part back or make some unqualified work
•
Use a new shield after removing
Low receiver signal strength indicator
Antenna faulty / wrong - Tuning
•
Check the fixed position of the antenna,
•
Check the antenna spring connector X501, change it if bent
•
Check the receiver signal indicator with a new antenna
•
Retune the handset
don't touch the conducting area with the fingers
No Service
Set first the RF-Generator to a high RF-Level output e.g. –40dBm
Set the module with wintesla as follow mode: Initialise/ Local mode/ Testing/ RF Controls…/ Active unit "RX"/
Operation Mode "continuous
"
13MHz VCTCXO G701 out of range
•
Check the 13MHz reference frequency pin 15 N700 (SUMMA) or pin 2 of G750, a frequency error
higher +-50Hz can create deviation of the Intermediate frequencies
•
View also SB 18 "The old version 'A' VCTCXO (type number: NGK3092A) should be replaced with a new version 'B'
VCTCXO (type number: NGK3092B)"
No RX (no Rx calibration…RSSI reading highest value)
N600 CRFU / faulty / poor soldering
•
Check the incoming RF- Channel frequency on pin 27 N600
•
Check the LNA_AGC voltage 2,8V DC pin 28 N600
•
Check the VRX_1 voltage 2,8V pin 15,16,23, 33, 38,45,46 N600
•
Check the LNA_OUT frequency pin 23 N600 and input on pin 18, 19.
An attenuation from aprox. 10-15dBm between signal input and output is normal!
•
Check the UHF LO frequency (2036MHz GSM900 CH60) pin 3 N600 approx. –20dBm.
No frequency deviations are allowed!
•
Check the outgoing 71MHz Intermediate Frequency on pin 15, 16 N600
•
Check the soldering of N600 or change it
Z700 / faulty / poor soldering
• Check the 71MHz IF frequency on Z700. The normal attenuation between input and output are ≈15dBm
•
Check the components C701, C704,C149, L701, R701 if the signal amplitude is different between the two lines
•
check the soldering of Z700 or change it
version 1.0 / 05.11.1999 Page 30 of 37
Page 31
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
Z701 faulty / poor soldering
•
check the outgoing 13MHz IF on pin 30 N700 (SUMMA)
• check the input 13MHz IF on pin 25, 26 N700 (SUMMA) . The attenuation between input and output is ≈20dBm
•
check the 13MHz IF on Z701, around 5dBm attenuation between signal-in and signal-out
•
check the soldering of Z701 or change it
• check R717, R718, R719, C706 and the line resistance to ground (10KΩ with all components)
G700 UHF Oscillator faulty
•
check the UHF frequency on G700 for high spurious or deviation
•
check the UHF-VC on pin 21 N700 1,9V-3.2V DC depending of the channel
•
check the 5V VCP supply voltage on pin 13, 22 from N700 SUMMA
• check R733 33KΩ, R730 5K6 Ω, R731 2K2Ω, C740 2,2nF
•
change the oscillator
N700 SUMMA faulty / poor soldering
• check the 13MHz reference frequency pin 15 N700. (No frequency deviation higher ±50Hz is allowed!)
•
check the power supply voltage VRX_2 2,8V DC pin 35 N600
•
check the incoming IF 71MHz pin 37,38 N700
• check the 13MHz IF on pin 30(out),25, 26(in) N700 . The attenuation between input and output are ≈20dBm
•
check the control-lines for the PLL pin 5, 6, 7 from N700 (see the diagrams below)
•
check the incoming VHF_LO frequency 464MHz pin 8 N700 if the 13MHz IF are deviated or not exist
measurable level approximate –20dBm!
•
Check the synth. power supply 2,8V DC pin 9, 19 N700 and VCC G700, G702
•
Check the VCP 5V DC pin 13, 22 N700
•
Check the control voltage for the UHF and VHF oscillator
(UHF pin 21 control voltage is channel dependent, pin12 2,2V DC on N700)
•
Check the soldering of N700 or change it
Figure 7: PLL-SCK L Signal
version 1.0 / 05.11.1999 Page 31 of 37
Page 32
Figure 8:PLL-SDAT Signal
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
Figure 9:PLL-SENA Signal
No RX (no Rx calibration…RSSI reading fixed value)
COBBA / MAD faulty /broken solder balls
•
Check if the 13MHz IF on pin 23,24 N700 SUMMA change the amplitude if you change the generator frequency
level
•
Check if the RXC impulse on pin 36 N700 (SUMMA) change the amplitude if the generator frequency level is
modified (see the diagram below)
•
Check R725 if any or low signals are measurable
•
Change COBBA N200(rewrite SIMLOCk and update the handset)
•
If the fault persist MAD or the PCB should be the reason
•
In this case swap the handset because MAD is not changeable
(change the operation mode first to "RX BURST MODE")
Note! Rewrite SIMLOCK and IMEI entries with use of the Nokia security SW (SSSW) and make a SW-update or send
this phones to the SACE, if this procedure is not permitted to you
version 1.0 / 05.11.1999 Page 32 of 37
Page 33
Figure 10:RX-Control Signal
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
Call breaks / No service
G701 13MHz Oscillator out of range or high spurious emission
•
Set the handset to call mode, check if some phase and frequency errors appear special in GSM 1800 band
The deviations will be higher the higher the traffic channel is!
•
Change the G701 13MHz Oscillator
COBBA N200 broken solder balls
•
Check VBB 2,8V DC on C117 near to CCONT
•
Check VCOBBA 2,8V DC C148 near to COBBA
•
Check COBBACKL 13MHz 3,2Vpp on J 201 (see the diagram in chapter "COBBA contact service" )
•
Check the module in call modus with a simulator.
•
Knock very careful with something no metalled around the COBBA
•
Check if some errors appear on the tester (phase /frequency / RX-Quality/TX-Power level)
•
Check the COBBA IC with a microscope, the first broken balls are normal on the corners from circuit.
•
Change the circuit with a μBGA solder machine
version 1.0 / 05.11.1999 Page 33 of 37
Page 34
CONFIDENTIAL
The pictures indicate a typically case of broken solder ball
under the μBGA. On the right you can see the little part of the
COBBA IC view with a microscope. The PCB is on the
top, and the COBBA are with the body to the bottom of
the picture. The picture below shows a broken ball view
through a X-ray machine
Service & Analysis Center Europe
Training Team
No TX-Power or to low
See also the troubleshooting chapter 4.GSM transmitter and 5. PCN transmitter from service manual
Z500 Duplexer Filter (Low TX-Power on GSM 900)
•
Check the TX-Power level between the TX "in" and "Antenna" pad of the duplexer
•
Resolder the ground and signal connection pads of the duplexer
•
Change the duplexer
Z504 RX/TX switch GSM1800 (Low TX-Power on GSM 1800)
•
Check the 1V DC TX-switching voltage on Z504
•
Check the TX-power difference between "TX" and "ANT" pad on Z504
•
Change the Z504 if more than 2dBm difference are measurable
N500 /N501 Power Amplifier GSM 900 /GSM 1800
• Check the power supply VDC_OUT(3,2V→4,2V dependent to the power level) N500 /N501 pin 3
•
Check the input power on pin N500/ N501 depend of the band (nominal 0dbm)
•
Check the outgoing power on pin 4 N500/ N501
•
Check the TX-Power control signal on pin 2 N500/ N501 , 0,7Vpp-1,7Vpp / 0,12..V - 0,2..V DC dependent of the
power-level (see the diagram below)
•
Change the PA if no power or to low power comes out and the power supply and control line are OK
version 1.0 / 05.11.1999 Page 34 of 37
Page 35
Figure 11:TX-Control Signal
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
version 1.0 / 05.11.1999 Page 35 of 37
Page 36
CONFIDENTIAL
Change history
Originator Status Version Date Comment
Jose
Marquez
Draft 0.2 22.10.1999 First draft version for the repair group
Draft 0.3 02.11.199 Insert comments from the repair team, add layout
"Test Points"
approved 1.0 05.11.1999 First AMS version
Service & Analysis Center Europe
Training Team
version 1.0 / 05.11.1999 Page 36 of 37
Page 37
Measurement points NSE-8
J
J
J
J
J
J
J
J
J304 / _RP
J346 / _WD
J303 / _WE
J312 / JTDI
J316 / CO Emu0
J317 / CO Emu1
CONFIDENTIAL
302 / OE
Service & Analysis Center Europe
Training Team
301 / _CE
J311 / JTDO
J321 / Sim Pwr
J340 / VXO Pwr
J310 / Charge off
J325 / Sim Det
J322 / SIM IOC
J338 / CCONT Init
J320 / Gen Sclk
J323 / Sim Clk
J339 / Gen Sdio
J324 / Sim Rst
J337GenCCONTCS
J309 / Rom SelX
J308 / DSP XF
J200 / RX Ref
J349 / P
342 / Q DATA
201 / RFI Clk
343 / DSP
341 / I DATA
344 / COBBA
345 / COBBA SD
version 1.0 / 05.11.1999 Page 37 of 37
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