Nokia 5110 Service Analysis Center Europe
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
Version 1.0 / 19.10.1999 Page 1 of 38
CONFIDENTIAL
Service & Analysis Center Europe
Change history
Orginator Approved Status Version Date Comment
Ralf Heptner Draft 0.1 11.08.99
Ralf Heptner Draft 0.2 25.08.99 Flowcharts updated
Ralf Heptner Draft 0.3 27.09.99 SIM lock lists updated, some
minor changes
Ralf Heptner Draft 0.4 01.10.99 Forword changed
Jose Marquez Draft 0.5 08.10.99 Forword changed
Ralf Heptner Approved 1.0 19.10.99 Forword changed
Training Team
Version 1.0 / 19.10.1999 Page 2 of 38
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 6110, 5110 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 processe 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 : NSEKM-13 version 2.41.03
Nokia Module Jig : JBS-19
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:
Version 1.0 / 19.10.1999 Page 3 of 38
Nokia GmbH
Service & Analysis Center Europe
Meesmannstr.103
D-44807 Bochum / Germany
Email: ams.sace-training@nokia.com
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
Contents
CHANGE HISTORY .............................................................................................................................................. 2
INTRODUCTION ................................................................................................................................................... 3
P
HONE DOESN'T SWITCH ON
P
HONE SWITCHES ITSELF OFF
S
WITCH ITSELF OFF- CONTACT SERVICE APPEARS ON THE DISPLAY
C
ONTACT SERVICE
C
ONTACT SERVICE
C
ONTACT SERVICE
C
ONTACT SERVICE
C
LOCK TIME OR USER SETTING PROBLEMS
T
HE PHONE HANGS UP, AFTER ENTERING THE
N
OT CHARGING
L
OW STAND BY TIME
B
UZZER FAILURES
I
NTERNAL AUDIO FAILURES
E
XTERNAL AUDIO FAILURES
A
CCESSORY DETECTION FAILURE (HEADSET / CAR KIT ACTIVE
D
ISPLAY FAILURE
K
EYPAD FAILURE
NSERT
I
SIM
L
OW RECEIVER SIGNAL STRENGTH INDICATOR
N
N
N
N
N
C
ALL BREAKS
N
N
SIM
CARD NOT ACCEPTED
O SERVICE
RX (
O
NO RX CALIBRATION
RX (
O
NO RX CALIBRATION
RX (
O
NO RX CALIBRATION
RX (
O
NO RX CALIBRATION
O CALL / SERVICE
O OR TO LOW
– COBBA
– COBBA
– E
– PPM
....................................................................................................................................................17
.................................................................................................................................................22
..................................................................................................................................................27
...................................................................................................................................................29
CARD
.........................................................................................................................................................35
/ N
O SERVICE
O.K........................................................................................................................................38
TX – P
....................................................................................................................................5
...................................................................................................................................8
PARALLEL BUS FAILED
SERIAL BUS FAILED
EPROM TUNE CHECKSUM FAIL
VALIDITY
.......................................................................................................................13
.................................................................................................10
.....................................................................................................11
................................................................................................12
...............................................................................................................14
PIN-
...........................................................................................16
CODE
............................................................................................................................................21
....................................................................................................................................23
...................................................................................................................................24
)....................................................................................25
...........................................................................................................................................30
, SIM LOCK
FAILURE
......................................................................................................31
...........................................................................................................35
…RSSI
…RSSI
…RSSI
…RSSI
READING FIXED VALUE
READING HIGH DIFFERENCE
READING HIGHEST VALUE
READING HIGHEST VALUE
).....................................................................................36
...................................................................................................................................38
................................................................................................................................38
OWER
...............................................................................9
)..............................................................................36
).................................................................................36
).................................................................................37
Version 1.0 / 19.10.1999 Page 4 of
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Phone doesn't switch on
Figure 1: Flow chart of phone doesn't switch on
Phone doesn't switch on
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
Observe power consumtion
norm. < 6mA pulsing to
20mA
(without backlights)
Yes
Check VBAT (3,6V)
N100 / 8, 12, ...
Yes
Check 32,768 KHz
N100 / 46 = 1,3Vss (Sinus)
N100 / 47 = 2,3Vss
(Square)
Yes
Check DC Volt. PW RONX
N100 / 29 = V BATT (3,6V)
If Pwr but ton is pressed
PWRONX = 2,9V
Yes
Check DC Volt. PURX
N100 / 54 = 2,8V
D200 / 122 = 2;8V
(after pressing Pwr button!)
Yes
Check Sleep clk 32,768KH z
N100 / 48 = 2,8Vss
D200 / 122 = 2,8Vss
(Square)
Yes
Check DC Volt SLEEPX
D200 / 113 = 2,8V
N100 / 24 =2,8V
Yes
Check
No No
No
No
No
No
No
No
C610, C 611,
C612
if faulty!
Check connection
to X101
L103
Change
B100
Check:
R118 (10K)
X300
UI-module
Chec k solderings
of N100
or
Change N100
Chec k solderings
of N100
or
Change N100
Chec k solderings
of D200
or
Change D200
Lift L550
(VBATT for Pwr
Amp)
No
Change
N550
Check DC Volt VXO
N100 / 25 = 2,8V
G600 / 1 = 2, 8V
Yes
Check VCXO 13MHz
G600 / 2 = 1Vss
D200 / 93 = 1V ss
Yes
Try to flash
the phone
No
No
No
Chec k solderings
of N100
or
Change N100
Change
G600
See Section:
Can't Flash the
phone
Version 1.0 / 19.10.1999 Page 5 of
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CONFIDENTIAL
N100 faulty/ poor solderings
Check if voltage on Pin 29 drops of 700 mV during pressing the Power on button
•
Check if there is a 32.768 KHz square wave on Pin 48
•
Check if PURX Pin 54 goes up to 2.8 V DC
•
Check if VXO Pin 28 goes up to 2.8 V DC
•
B100 faulty 32,768KHz
Check 32.768 KHz ; 1 Vpp clock signal on B100
•
G600 faulty 13 MHz
Check VXO 2,8V DC on J522
•
Check 13 MHz; 1 Vpp on output
•
S001 User Interface
Check if voltage on Pin 29 drops of 700 mV during pressing the Power on button
•
Service & Analysis Center Europe
Training Team
X300 UI Connector bent
Check if voltage on Pin 29 drops of 700 mV during pressing the Power on button
•
R118 missing/ poor soldering
Check if voltage on Pin 29 drops of 700 mV during pressing the Power on button
•
D200 MAD faulty/ poor soldering
Check 32.768 kHz square wave on Pin 124 (comes from CCONT Pin 48)
•
Check 13 MHz 0n Pin 93 (comes from G600)
•
Check VBB 2.8 V DC
•
Check PURX 2.8 V DC on Pin 122 (comes from CCONT Pin 54)
•
Check SLEEPX 2.8 V DC 0n Pin 113
•
Resolder MAD complete
•
D210 FLASH faulty/ poor soldering/ empty
Check VBB 2.8 V DC on Pin 47
•
If power consumption is around 20mA try to flash the phone
•
Resolder FLASH completely
•
Version 1.0 / 19.10.1999 Page 6 of
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CONFIDENTIAL
L103 faulty/ poor soldering
Check VB on J232
•
X101 / X102 contacts bent/ dirty
Check if VBATT and Gnd are connected
•
N550 short circuit
If there is a short circuit on VBATT, lift L550 and check again
•
If the PCB is burnt, swap the phone
•
C610; C611; C612 burnt/ short circuit
Lift the capacitor and check again
•
If the PCB is burnt, scrap the phone
•
Service & Analysis Center Europe
Training Team
Figure 2: Block diagram of switching on routine
VBATT
R103 / R104
VCHAR
BTEMP
SLEEPX
VCXO
13 MHz
G600
C213
R213
93
12, 16, ...
60
63
25 VXO 2.8V
24
113
2.8V
BB Regulator VBB 2.8V
55
CCONT
N100
54
48
124
32 KHz
square
122
2.8V
GENSIO
MAD2
D200
46
47
29
PURX
B100
32 KHz
Crystal
R118
Pwr OnX
from
UI module
Version 1.0 / 19.10.1999 Page 7 of
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Phone switches itself off
Yes
CONFIDENTIAL
Phone intermittend switches off
Service & Analysis Center Europe
Training Team
Check if this happens
only with 5V SIM-cards
and if the phone work s
probably with 3V SIM's
Yes
Check the 5V
supply voltage on
C131 wit h an
oscilloscope
Yes
Change C131 if the
noise is higher than
350mVpp
Check X101 and
No Wrong
X102, if poor soldered,
bent or soiled
Change if old version
is used!
No
Check amplitude of
32,768KHz square
wave at pin 124 of
MAD (2,8Vpp)
No
Check amplitude of
13MHz at pi n 93 of
MAD (2,8Vpp)
No
Wrong
Wrong
Resolder, change or
clean the connector
Change or check
soldering of B100,
N100, R154, C101,
C102
Change or check
soldering of G600,
V705...
Check VBB 2,8V DC
on pin 55 of N100
Wrong
Change or check
soldering of N100,
C107
Version 1.0 / 19.10.1999 Page 8 of
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CONFIDENTIAL
C131 10μF/10V
Check that the handset work probably with 3V SIM-cards
•
Check the 5V supply voltage at C131 (about 4,8V-5,2V,
•
Maximum noise 350mVpp overlap)
Figure 3: diagram of normal noise on C131
Service & Analysis Center Europe
Training Team
Switch itself off- contact service appears on the display
D200 MAD faulty / poor soldering
Check the amplitude of the 32,768KHz square wave on pin 124 (comes from CCONT pin 48)
•
Check the amplitude of the 13MHz clock frequency pin 93 (from G600)
•
Check VBB 2,8V DC
•
Resolder MAD
•
Internal error of MAD
•
Version 1.0 / 19.10.1999 Page 9 of
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CONFIDENTIAL
Contact service – COBBA parallel bus failed
Contact Service
Check via WINTESLA / Testing / Selftest
which kind of selft est is fail
COBBA parallel bus
failed
Yes
Service & Analysis Center Europe
Training Team
check COBBACLK
13MHZ/ 3,2Vpp on pin
45 0f COBBA
Ok
check VBB 2,8V on
pin 27, 53 of COBBA
Ok
Check VCOBBA 2,8V
DC on pin 7, 12, 21,
25 of COBBA
Ok
Check so lder ing of
MAD or change MAD
Ok
No
No
No No
Check COBBA Clk on
pin 144 of MAD
Check VBB 2,8V DC
on pin 55 of N100,
CCONT
Check VCOBBA 2,8V
DC on pin 22 of N1 00,
CCONT
No
No
Change or check
soldering of MAD
check soldering or
change N100, C107
Change or check
soldering of N100,
C133
Check so lder ing of
COBBA or change
COBBA
Version 1.0 / 19.10.1999 Page 10 of
38
CONFIDENTIAL
Contact service – COBBA serial bus failed
Contact Service
Check via WINTESLA / Testing / Selftest
which kind of selftest is faulty
COBBA Serial
bus failed
Yes
Service & Analysis Center Europe
Training Team
Check VBB 2,8V
DC on pin 27, 53
of COBBA
Ok
Check VCOBBA
2,8V DC on pin 7,
12, 21, 25 of
COBBA
Ok
Check soldering
of COBBA or
change COB BA
Ok
Check soldering
of MAD or change
MAD
No
No
Check VBB 2,8V
DC on pin 55 of
N100, CCONT
Check VCOBBA
2,8V DC on pin
22 of N100
No
No
Change or check
soldering of
N100, C107
Change or check
sol dering of
N100, C133
N250 COBBA faulty / poor soldering
Check VBB 2,8V DC on pin 27, 53 from COBBA
•
Check VCOBBA 2,8V DC on pin 7,12,21,25, from COBBA
•
Check COBBACKL 13MHz 3,2Vpp pin 45 from COBBA
•
Resolder COBBA
•
Internal error of COBBA
•
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 / 19.10.1999 Page 11 of
38
CONFIDENTIAL
Contact service – Eeprom tune checksum fail
Contact Service
Check via WINTESLA / Testing / Selft est
which kind of selftest is faulty
EEPROM tune
checksum f ail
Yes
Service & Analysis Center Europe
Training Team
Check via WINTESLA >
product i nf or mation, i f
any phon e data, like:
IM EI, product code,
PSN, etc. is corrupted
change the EEPROM if
it is permitted to y ou, to
rewrite the IMEI
Reset t he phone (don't
No
Yes No
use the full fact or y set if
it is not permitted to you
to rewrite the IMEI)
EEPROM
internal fault
send this phones to the
SACE Bochum
if it is not permitted to
you to r ewrit e t he IMEI
refer to
Service Bulletin
general 26
Phone is Ok, if
CONTACT SERVICE
dissapears
D240 Eeprom faulty
Check via wintesla if IMEI or product data are corrupted
•
Don’t use the "Full factory set" via wintesla, otherwise the IMEI will
•
Change to question marks
Change the Eeprom if it's permitted for 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
Version 1.0 / 19.10.1999 Page 12 of
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