Service & Analysis Center Europe
Training Team
CONFIDENTIAL
Contents
INTRODUCTION
2
7
NO FLASH UPDATE POSSIBLE/ DOESN'T SWITCH ON
INTERMITTENT DOESN'T SWITCH ON
NOT CHARGING
8
8
LOW STAND BY TIME/ OPERATION TIME
PHONE SWITCH IT SELF OFF
11
13
15
18
19
20
21
23
25
26
28
30
30
30
33
37
CONTACT SERVICE COBBA PARALLEL /SERIAL BUS FAIL
CONTACT SERVICE – EEPROM CHECKSUM FAIL
CLOCK TIME OR USER SETTINGS PROBLEMS
BUZZER FAILURES
INTERNAL AUDIO FAILURES
DISPLAY FAILURES
KEYPAD FAILURE
INSERT SIM CARD
SIM CARD NOT ACCEPTED, SIM LOCK FAILURE
PRODUCT CODE NSE-8
RECOMMENDATION FOR REPAIR ACTIONS IN THE RF- AREA
LOW RECEIVER SIGNAL STRENGTH INDICATOR
NO SERVICE
CALL BREAKS / NO SERVICE
MEASUREMENT POINTS NSE-8
version 1.0 / 05.11.1999
Page 3 of 37
Service & Analysis Center Europe
Training Team
CONFIDENTIAL
Doesn't Switch on
Phone doesn't switch on, section: DC / DC converter
Check VB (Battery 2,4V-3V)
check connector X101/ X102
change if bend or soiled
No
No
on L102
Yes
check the solderings and
resistance of L102 "0Ohm"
resolder or change L102
Yes
check the connection between
L102 and R132 (0 Ohm)
Swap the phone if the
connection is open
No
No
No
Yes
check V109 and the
respective voltage deviders
R131,132,134,143,144
check pin 3 from V105
on="low"status 0Ohm
Yes
Check 600KHz switching
frequency on Pin 4,5,12,13 of
V105
check the voltage on V101
anode 2,6V; cathode 3,2V
check solder of V105 or
change if necessary
No
Yes
Yes
check solder of V105 or
change if necessary
check also R102, R105, R112
DC/ DCconverter is oK!
continue with CCONT
Check 1,2V operation voltage
on Pin 15 of V105
No
version 1.0 / 05.11.1999
Page 4 of 37
Service & Analysis Center Europe
Training Team
CONFIDENTIAL
Phone doesn't switch on (CCONT part)
check if PWRON (3,2V DC)
drops to 0V during pressing
the pwr button on R413.
change S416 if it is
mechanical broken
No
Yes
change B100 if frquency or
amplitude of the singnal in not
oK
check 32,768KHz, 700mVpp
on B100
Check also C147, C148,
C153
No
No
No
Yes
check 32.768KHz squarewave
signal on C149
change N100
change N100
Yes
Check PURX (2,8V DC)
afterpressing pwr on button on
R303
No
No
No
Yes
MAD is faulty in all probability.
Swap the phone, because
MAD is not changeable
Check SLEEPX (2,8V DC) on
J340
Yes
Check VXO (2,8V DC) on
C102
change N100
Yes
Check Vbb (2,8V DC)
Yes
No
No
No
No
change N100
change N100
Check Vref (1,5V DC) on
C123
Yes
check solder of G700 or
change if neccessary
check 13 MHz clk frequency
on C301
check 13MHz on G701
No
Yes
See section :
can't flash the phone
Try to Flash the phone
version 1.0 / 05.11.1999
Page 5 of 37
Service & Analysis Center Europe
Training Team
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
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
Service & Analysis Center Europe
Training Team
CONFIDENTIAL
No flash update possible/ Doesn't switch on
Doesn't switch on, section: FLASH (update not possible)
Change the switch
of service frame/
battery to local, if
phone switches
itself off
oK
Check 32,768KHz
continue with
sleep clock on
C149
wrong
wrong
wrong
section CCONT
oK
Check 13MHz
RFclk on C301
continue with
section CCONT
oK
Check VBB 2,8V
DC
continue with
section CCONT
oK
Try to flash the
phone, if power
consumtion is about
20mA
"MCU boot failure"
appears during
flashing
"External RAM
error" appears
during flashing
Yes
Yes
Resolder RAM or
change if
neccessary
try to update again
Swap phone,
because MAD or
PCB should be the
reason
Change FLASH
and try to update
again
same
massage
same
massage
no massage
no massage
phone is oK
phone is oK
version 1.0 / 05.11.1999
Page 7 of 37
Service & Analysis Center Europe
Training Team
CONFIDENTIAL
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"
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 massage/ beep is not coming from phone if charger is pluged in
Check
Change N101
(PSCC)
V_CHARGE_IN on
oK
C100
not oK
check system
connector X503,
clean contacts &
PCB or change if
necessary
oK
Check resistance
0f fuse (F100) and
L100 (0Ohm)
change if
necessary
version 1.0 / 05.11.1999
Page 8 of 37
Service & Analysis Center Europe
Training Team
CONFIDENTIAL
Not charging (2)
error message/ beep is coming from phone if charger is pluged in
Do the energy
management
calibration
Try to charge after
failed
oK
calibration
not oK
Check the
connection
between R125 and
R127
Check BTEMP A/D
in ADC readings not oK
(317=25°C)
swap phone if there
is a disconnection
not oK
oK
check NTC resistor
R127 (47Kohm)
Check VCHAR on
Charge voltage
failed
voltage devider
R100 / R101 (10:1)
Change N100
(CCONT)
Yes
oK
=0,8V
not oK
Check resistance
0f fuse (F100) and
L100 (0Ohm)
change if
necessary
oK
Check R103 if it is
Yes
Change R103 and
N101 (PSCC)
mechanical broken
check voltage
devider R106 /
R111 (1:2)
Battery voltage
failed
Cange N100
(CCONT)
Yes
oK
not oK
Check battery
connector X101
X102. change if
bended
version 1.0 / 05.11.1999
Page 9 of 37
Service & Analysis Center Europe
Training Team
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! See Service manual chapter "service software instructions"
page 19 (Energy Management Calibration)
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
Service & Analysis Center Europe
Training Team
CONFIDENTIAL
Low stand by time/ operation time
Low standby/ operation mode time
check power consumtion of the phone:
off state > 0-1mA
sleep mode > 2-8mA
call mode GSM 900 / GSM1800 > 0-1A
change N500 if
consumtion is oK
not Ok
Lift L505
not oK
oK
oK
change N501 if
consumtion is oK
Lift L506
not oK
change
corresponding if
consumtion is oK
lift capacitors
C111-113, C115
oK
oK
oK
not oK
check consumtion of
N700 > lift R745
G700 > lift R741
G702 > lift R742
change
Lift L105
oK
corresponding
component
not oK
change regulator
N702
not oK
check components
in corresponding
output lines
check
outputvoltages of
CCONT
change N100
CCONT
oK
not oK
check the charging
circuit, check energy
refer to section: "not
charging (2)"
not oK
management
calibration
oK
Calibrate RX and TX
values of the phone
refer to section:
"RX TX failures"
not oK
oK
Note: The standby time depends also 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 activities, games etc.)
version 1.0 / 05.11.1999
Page 11 of 37
Service & Analysis Center Europe
Training Team
CONFIDENTIAL
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
Off state
Sleep mode
Call mode GSM 900
Call mode GSM 1800
Minimum current in mA
Maximum current in mA
1
8
1000
1000
0
2
0
0
version 1.0 / 05.11.1999
Page 12 of 37
Service & Analysis Center Europe
Training Team
CONFIDENTIAL
Phone switch it self off
Phone intermittend switches off
Check if this happens
only with 5V SIM-cards
and if the phone works
probably with 3V SIM's
Check X101 and X102,
if poor soldered, bent
or soiled
Resolder, change or
clean the connector
oK
not oK
not oK
not oK
not oK
oK
not oK
Check the 5V
supply voltage on
C136 with an
oscilloscope
Change or check
soldering of B100,
C147, C148, C153,
N100
Check amplitude of
32,768KHz square
wave at C149
oK
not oK
Change or check
soldering of G701,
V702...
Change C131 if the
Check amplitude of
13MHz
RF Clk C301 (2,8Vpp)
noise is higher than
350mVpp
oK
Check VBB 2,8V DC
Change or check
soldering of N100,
C117
on
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
Service & Analysis Center Europe
Training Team
CONFIDENTIAL
Figure 2: Measurement point J343 COBBA RESET
version 1.0 / 05.11.1999
Page 14 of 37
Service & Analysis Center Europe
Training Team
CONFIDENTIAL
Contact service COBBA parallel /serial bus fail
Contact Service
Check via WINTESLA / Testing / Selftest
which kind of selftest is fail
COBBA parallel/
serial bus failed
Yes
check COBBACLK
13MHZ/ 3,2Vpp on
J201
Check 13MHz RFC
check soldering or
change G701, V702
not oK
not oK
on C301
oK
swap the phone
because MAD or PCB
should be the reason
oK
check soldering or
change N100, C117
check VBB 2,8V on
C117
not oK
oK
Change or check
soldering of N100,
C148
Check VCOBBA 2,8V
DC on C148
not oK
oK
Check COBBA reset
pulse during
initialisation routine
on J343 (see diagram)
swap the phone
because MAD or PCB
should be the reason
not oK
oK
Change the COBBA
version 1.0 / 05.11.1999
Page 15 of 37
Service & Analysis Center Europe
Training Team
CONFIDENTIAL
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 signal for the COBBA
Figure 4 Measurement point J343 COBBA RESET
version 1.0 / 05.11.1999
Page 16 of 37
Service & Analysis Center Europe
Training Team
CONFIDENTIAL
Contact Service-CCONT interface fail
Contact Service
Check via WINTESLA / Testing / Selftest
which kind of selftest is fail
CCONT interface failed
Yes
Check if PWRON 3,2V
drops to 0V on R413 during
pressing the power button
Check soldering or change
R413, S416
No
Yes
Change or check soldering
of B100, C147, C148, C153,
N100
Check the 32.768KHz
square wave on C149
No
No
No
Yes
Check if PURX goes up to
2,8V DC on R303
Change CCONT
Yes
swap the phone because
MAD or PCB should be the
reason
Check if VCXOPWR goes
up to 2,8V DCon J340
Yes
Check if VXO goes up to
2,8V DC on C102
No
No
change CCONT
Yes
Check if RFC 13MHz at
C301 (2,8Vpp)
Change or check soldering
of G701, V702...
Yes
Check if VBB goes
up to 2,8V DC on C117
No
No
change CCONT
change CCONT
Yes
Check if VREF goes up to
1,5V DC on C123
version 1.0 / 05.11.1999
Page 17 of 37
Service & Analysis Center Europe
Training Team
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 kind of selftest is failed
EEPROM tune
checksum fail
Yes
Check via WINTESLA >
product information, if any
phone data, like: IMEI,
product code, PSN, etc. is
corrupted
Reset the phone
(don't use the full
factory set if it is not
permitted to you to
rewrite the IMEI)
Phone is Ok, if
CONTACT
SERVICE dissapears
No
Yes
Yes
not oK
check 2,8V DC on pin
8 of Eeprom
not oK
Check VBB on C117
oK
EEPROM
internal fault
send this phones to
the SACE Bochum
if it is not permitted to
you to rewrite the
IMEI
change the EEPROM
if it is permitted to
you, to rewrite the
IMEI
Service Bulletin
general 26
version 1.0 / 05.11.1999
Page 18 of 37
Service & Analysis Center Europe
Training Team
CONFIDENTIAL
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 32,768KHz
clock frequency on
C149 CCONT
Check soldering or
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
Service & Analysis Center Europe
Training Team
CONFIDENTIAL
Buzzer failures
Buzzer failure
check buzzer control signal
from MAD 2,8Vpp on N400
pin 3, use WINTESLA /
testing / audio / level 1,
1000Hz
swap the phone because
MAD or PCB should be the
reason
not oK
not oK
not oK
oK
Check 3,9V DC VDC_OUT
on pin 1 of N400 and "+" of
B400
Check connection to
VDC_OUT on V105 pin 1,
16
oK
check buzzer signal 5Vpp
on pin 6 of N400 and "-" of
B400 (use same settings)
check VBB 2,8V DC on pin
2 of N400
Check connection to VBB
2,8V DC on C117
not oK
oK
oK
change B400
change N400
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
Service & Analysis Center Europe
Training Team
CONFIDENTIAL
Internal audio failures
Internal audio failure
check the
resistance between
check connection
between L202, L203
to earphone pads
(0 Ohm)
speaker doesn't work
(receiving audio)
Yes
not OK
not OK
not OK
not OK
change L202 or L203 not OK
the lines and
gruond
>1MOhm
OK
check the mechanic
and
impedance of
speaker
(about 30 Ohm)
change speaker
check the
connection
X503-->PCB for
soiled
check contacts and
impedance of
microphone (800
Ohm)
not OK
microphone doesn't
work
Yes
change microphone
Ok
check the
microphone bias
voltage 1,7V on C242
(audio loop enable)
not OK
check voltage on
R214
change N200
COBBA
Ok
Check audio signal
on C258, C259
follow signal back to
the microphone
not OK
Ok
Check 2,8V DC VBB
on C117 and 2,8V
DC VCOBBA on
C148
Check function of
CCONT
not OK
Ok
check COBBACLK
13MHz 3,2Vpp on
J201and
COBBARESET on
J343 during
swap the phone
because MAD or
PCB should be the
reason
not
OK
OK
change N200
COBBA
initialisation
version 1.0 / 05.11.1999
Page 21 of 37
Service & Analysis Center Europe
Training Team
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)
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
Service & Analysis Center Europe
Training Team
CONFIDENTIAL
Display failures
Display failure
check the display
of mechanical
appearance
Check VBB 2,8V
DC on C400 and
R420
missing line
segments or no
display function
change the
display
oK
oK
Yes
not ok
not oK
swap the
handset
oK
check the VBB
because the
PCB is faulty
voltage on V117
check pin 1 N400
VDC_OUT, pin 2
VBB, LCD_LIGHT
pin 7 "on"=2,8V,
R415 12K Ohm pin 8
to ground
check the LCD_LED line
pin 9 N400 to V406,
V409, V412, V413
check VDC_OUT
3,2VDC on V406,
V409, V412, V413
no display back
light
faulty
oK
Yes
"on"=1,2V DC/
"off"=1,9V DC
not oK
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
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Service & Analysis Center Europe
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CONFIDENTIAL
Figure 5: Faulty display
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 the
Keymat pins
not oK
change the keymat
oK
check the
dome-sheet and
the PCB module if
soiled
change the
dome-sheet and
clean the PCB
not oK
oK
check ROW and
COL lines
connection
if the are some
interruption in one
line the PCB will
be faulty
not oK
between the keys
version 1.0 / 05.11.1999
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CONFIDENTIAL
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
swap the phone if
any wire to the SIM
card reader has
teared off
resolder X100 or
change if any
contact is bended
check solderings and contacts of
X100, SIM card reader
not oK
not oK
oK
change V112 if SIM
-DATA, -CLOCK,
-RESET or VSIM is
short circuited to
ground
check pin 4 (SIMDATA), pin 3
(SIMCLK), pin 2 (SIMRST), pin
1/5 (VSIM) of SIM-CARD reader
change N100
CCONT
not oK
not oK
not oK
check also
R115,R116,C137,C
138,C139,C140,
C141
version 1.0 / 05.11.1999
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CONFIDENTIAL
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 (SIM LOCK active)
SIM card not
accepted
appears on
LCD after
entering the
PIN code.
Yes
!!!Take note!!!
if the Msin data field is
closed to any special
IMSI number range,
ONLY the operator is
allowed to open the
SIM LOCK!!!
compare the data
entries MCC+MNC
with the listed
entries of the
respective product
code
open
WINTEASLA
and activate
quick /RF-info
Yes
Ok
SIM LOCK is oK!
not oK
correct the SIM
LOCK settings
with use of the
Nokia security SW
(SSSW) or send
those phones to
the SACE
correct the SIM LOCK
settings with use of
the Nokia security SW
(SSSW) after
changing of COBBA
or send those phones
to the SACE
if SIMLOCK is not
active, but
phone still doesn't
accept SIM,
change N200,
COBBA
version 1.0 / 05.11.1999
Page 26 of 37
Service & Analysis Center Europe
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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…
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
Service & Analysis Center Europe
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CONFIDENTIAL
Product Code NSE-8
Figure 6: List of current SIM LOC phones NSE-8
Product-Code
SIM-LOCK-DATA
Operator
NSE-8
0503478
Mcc+Mnc 20820
BOUYGUES
TELESTET
PANAFON
COSMOTE
MOBILIX
OLA
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
0503593
Mcc+Mnc 20801
Msin
??????????
Mcc+Mnc 26001
POLKOMTEL
TELECEL
WESTEL
PANNON
ERA
Msin
??????????
0503594, 0505102
0503575
Mcc+Mnc 26801
Msin
??????????
Mcc+Mnc 21630
Msin
??????????
0503576
Mcc+Mnc 21601
Msin
??????????
0505105
Mcc+Mnc 26002
Msin
??????????
0505100
Mcc+Mnc 23433
ORANGE
ONE2ONE
TURKCEL
TELSIM
Msin
??????????
0505101
Mcc+Mnc 23430
Msin
??????????
0505107
Mcc+Mnc 28601
Msin
??????????
0505108
Mcc+Mnc 28602
Msin
??????????
0505104
Mcc+Mnc 26003
CENTERTEL
EIRCEL
Msin
??????????
0505110
Mcc+Mnc 27201
Msin
??????????
0502159, 0502993,
0502994, 0503161
0503207, 0503286,
0503287, 0503288
0503583, 0505106,
0505112, 0503789
0503824
NO SIM-LOCK
version 1.0 / 05.11.1999
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Service & Analysis Center Europe
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CONFIDENTIAL
Product-Code
SIM-LOCK-DATA
Operator
NSE-8
0505109
Mcc+Mnc 23203
Maxmobil
Msin
??????????
0505111
0503708
0503706
0503707
0503785
0503788
0503825
0503826
0503827
Mcc+Mnc 65510
MTN, South Africa
Eurotel, Czech Rep.
BEN, Netherlands
TMN, Portugal
Msin
??????????
Mcc+Mnc 23002
Msin
??????????
Mcc+Mnc 20416
Msin
??????????
Mcc+Mnc 26806
Msin
??????????
Mcc+Mnc 23102
Mobilkom-A1, Austria
Duchtone, Netherlands
Msin
??????????
Mcc+Mnc 20420
Msin
??????????
Mcc+Mnc 23002
Eurotel-Contracrt, Czech
Msin
??????????
Rep.
Connex
Mcc+Mnc 22601
Msin
??????????
Mcc+Mnc 20412
Telfor, Netherlands
Msin
??????????
Mcc+Mnc
Msin
Mcc+Mnc
Msin
Mcc+Mnc
Msin
Mcc+Mnc
Msin
Mcc+Mnc
Msin
Mcc+Mnc
Msin
Mcc+Mnc
Msin
??????????
??????????
??????????
??????????
??????????
??????????
??????????
version 1.0 / 05.11.1999
Page 29 of 37
Service & Analysis Center Europe
Training Team
CONFIDENTIAL
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, don't touch the conducting area with the fingers
Check the antenna spring connector X501, change it if bent
Check the receiver signal indicator with a new antenna
Retune the handset
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
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CONFIDENTIAL
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-SCKL Signal
version 1.0 / 05.11.1999
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CONFIDENTIAL
Figure 8:PLL-SDAT Signal
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) (change the operation mode first to "RX BURST MODE")
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
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
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CONFIDENTIAL
Figure 10:RX-Control Signal
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
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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
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
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CONFIDENTIAL
Figure 11:TX-Control Signal
version 1.0 / 05.11.1999
Page 35 of 37
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CONFIDENTIAL
Change history
Originator
Jose
Marquez
Status
Draft
Version
0.2
Date
Comment
First draft version for the repair group
22.10.1999
02.11.199
05.11.1999
Draft
0.3
1.0
Insert comments from the repair team, add layout
"Test Points"
First AMS version
approved
version 1.0 / 05.11.1999
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Service & Analysis Center Europe
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CONFIDENTIAL
Measurement points NSE-8
J304 / _RP
J302 / OE
J301 / _CE
J346 / _WD
J303 / _WE
J312 / JTDI
J316 / CO Emu0
J317 / CO Emu1
J311 / JTDO
J200 / RX Ref
J321 / Sim Pwr
J349 / P
J340 / VXO Pwr
J310 / Charge off
J325 / Sim Det
J322 / SIM IOC
J338 / CCONT Init
J320 / Gen Sclk
J323 / Sim Clk
J342 / Q DATA
J201 / RFI Clk
J343 / DSP
J339 / Gen Sdio
J324 / Sim Rst
J341 / I DATA
J344 / COBBA
J345 / COBBA SD
J337GenCCONTCS
J309 / Rom SelX
J308 / DSP XF
version 1.0 / 05.11.1999
Page 37 of 37
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