Nokia 6150 Introduction 1
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
version 1.1 / 01.02.2000 Page 1 of 41
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
Introduction
IMPORTANT:
This document is intended for use by authorised NOKIA service centers only.
The purpose of this document is to provide some further service information for NOKIA 6150 phones.
It contains a lot of collected tips and hints, to find failures and repair solutions easily.
It 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 : 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: Nokia GmbH
Service & Analysis Center Europe
Meesmannstr.103
D-44807 Bochum / Germany
Email: ams.sace-training@nokia.com
version 1.1 / 01.02.2000 Page 2 of 41
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
Contents
INTRODUCTION .................................................................................................................................................. 2
D
OESN'T SWITCH ON
N
OT CHARGING
L
OW STAND-BY TIME
I
NTERMITTENT DOESN'T SWITCH ON
P
HONE SWITCHES OFF ITSELF
S
WITCHES OFF ITSELF - CONTACT SERVICE ON THE DISPLAY
C
ONTACT SERVICE
C
ONTACT SERVICE
C
ONTACT SERVICE
C
ONTACT SERVICE – PPM VALIDITY
C
LOCK TIME OR USER SETTINGS PROBLEMS
B
UZZER FAILURES
I
NTERNAL AUDIO FAILURES
E
XTERNAL AUDIO FAILURES
A
CCESSORY DETECTION FAILURE (HEADSET / CAR KIT ACTIVE
.............................................................................................................................................. 4
..................................................................................................................................................... 7
........................................................................................................................................... 11
....................................................................................................................... 12
................................................................................................................................13
– COBBA
– COBBA
– E
PARALLEL BUS FAILED
..................................................................................................................... 16
SERIAL
EPROM TUNE CHECKSUM FAIL
................................................................................................ 15
............................................................................................... 17
........................................................................................................................ 18
............................................................................................................. 19
................................................................................................................................................ 21
................................................................................................................................... 22
.................................................................................................................................. 24
...................................................................................... 14
)................................................................................... 25
D
ISPLAY FAILURE
K
EYPAD FAILURE
I
SIM CARD ............................................................................................................................................. 30
NSERT
SIM CARD
................................................................................................................................................. 27
.................................................................................................................................................. 29
NOT ACCEPTED
, SIM LOCK
FAILURE
................................................................................................... 32
SIM LOCK DATA NSM-1................................................................................................................................. 34
T
HE PHONE HANGS UP AFTER ENTERING THE
L
OW RECEIVER SIGNAL STRENGTH INDICATOR
N
O SERVICE
C
ALL BREAKS
N
O CALL / SERVICE
N
O OR LOW
........................................................................................................................................................ 36
/ N
O SERVICE
.................................................................................................................................. 39
O.K....................................................................................................................................... 39
TX – P
................................................................................................................................... 39
OWER
PIN-
.......................................................................................................... 36
........................................................................................... 35
CODE
version 1.1 / 01.02.2000 Page 3 of 41
Doesn't switch on
Figure 1: doesn't switch on troubleshooting
Phone doesn't switch on
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
Observe power con-
sumption norm. < 6mA
pulsing to 20mA
(without backlights)
Yes
Check VBAT (3,6V)
N100 / 8, 12, ...
Yes
Check 32,768 kHz
N100/46=1,3Vpp (Sinus)
N100/47=2,3Vpp(Square)
Yes
Check DC Volt. PWRONX
N100 / 29 = VBATT (3,6V)
If Pwr button is pressed
PWRONX = 2,9V
Yes
Check DC Volt. PURX
N100 / 54 = 2,8V
D200 / 122 = 2;8V
(after pressin g Pwr b utton)
Yes
Check Sleep clk 32,768kHz
N100/ 4 8 = 2,8Vpp
D200/124=2,8Vpp(square)
Yes
higher
No
No
No
No
No
Check
C680, C682
Check c onnection
to X101
L103
Change
B100
Check:
R118 (10K)
X300
UI-module
Check s ol derings
of N100
or
Change N100
Check s ol derings
of N100
or
Change N100
No
consumption OK
change
N502
Lift L5 60
(VBATT for Pwr
Amp)
OK
N501 or N502
faulty
insert L560
and lift L654 and
Pin 12, 13 of N502
observe the power
consumption
consum ption not OK
change
N501
Check DC Volt SL E EP X
D200 / 113 = 2,8V
N100 / 24 =2,8V
Yes
Check DC Volt VXO
N100 / 25 = 2,8V
G600 / 1 = 2,8V
Yes
Check VCXO 13MHz
G600 / 2 = 1Vpp
D200 / 93 = 0,6Vpp
Yes
Try to flash
the phone
No
No
No
No
Check s ol derings
of D200
or
Change D200
Check s ol derings
of N100
or
Change N100
Change
G600
See Section:
Can't Flash the
phone
version 1.1 / 01.02.2000 Page 4 of 41
CONFIDENTIAL
N100 faulty/ poor soldering
Check if voltage on Pin 29 decreases to 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 32,768 kHz
Check 32.768 kHz ; 1 Vpp clock signal on B100
•
G650 faulty 13 MHz
Check VXO 2,8V DC on pin 1 from G650
•
Check 13 MHz; 1 Vpp on output pin 2
•
S001 User Interface
Check if voltage on Pin 29 decreases to 700 mV during pressing the Power on button
•
Service & Analysis Center Europe
Training Team
X300 UI Connector bent out
Check if voltage on Pin 29 decreases to 700 mV during pressing the Power on button
•
R118 missing/ poor soldering
Check if voltage on Pin 29 decreases to 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 on Pin 93 (comes from G650)
•
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 completely
•
D210 FLASH faulty / poor soldering/ empty
Check VBB 2.8 V DC on Pin 37
•
If power consumption is around 20mA try to flash the phone
•
Resolder FLASH completely
•
L103 faulty/ poor soldering
Check VB on J232 or pin 8 from CCONT
•
X101 / X102 contacts bend out/ dirty
Check if VBATT and Gnd are connected
•
version 1.1 / 01.02.2000 Page 5 of 41
CONFIDENTIAL
N501 / N502 short circuit
If there is a short circuit on VBATT, lift L560 and check again
•
If the current is OK one of the two PA is faulty
•
Assemble L560 back and lift L654 and pin 12 and 13 from N502
•
If the current is OK N502 is faulty, if not N501 is faulty
•
If the PCB is burnt, swap the phone
•
C680; C682 / short circuit
Lift the capacitor and check again
•
Figure 2: Block diagram of switching on routine
BB Regulator VBB 2.8V
VBATT
Service & Analysis Center Europe
Training Team
VCXO
13 MHz
G600
C213
R103 / R104
VCHAR
BTEMP
R213
SLEEPX
12, 16, ...
60
63
25 VXO 2.8V
24
113
2.8V
55
CCONT
N100
GENSIO
48
124
32 KHz
square
54
122
2.8V
46
47
29
PURX
B100
32 KHz
Crystal
R118
Pwr OnX
from
UI module
MAD2
93
D200
version 1.1 / 01.02.2000 Page 6 of 41
Not charging
check VCH on pi n 1,
16 of N101, CHAPS
CONFIDENTIAL
Service & Analysis Center Europe
Not charging (1)
no confirmation / er r or mes sage / beep is coming from phone, if charger i s
plugged in
Check X100, F101,
check V100, C103 if
VCH is short circuited
Ok
No Ok
L104, L105 if
connection to charger
is open
Training Team
check solderi ngs of
N101 or change if
necessary
Do the battery
management
calibration
check the power
consumption of t he
phone (1-5mA if
phone is swit ched on
wit hout SIM & lights)
Phone doesn't stop charging
if any A/D value is
Ok
No
Ok
wrong, refer to
section not charging
(2)
If the power
consumption is
higher, refer to
section low standby
time
Yes
Yes
not charging (2)
low standby time
No
check DC voltage on
pin 2 of D200, M AD,
switches from 2,8V to
0V, if battery is fully
charged
No
resolder or change
MAD if necessary
version 1.1 / 01.02.2000 Page 7 of 41
CONFIDENTIAL
Service & Analysis Center Europe
Training Team
failed
Charger voltage failed
Battery siz e
failed
error message ("not charging") / beep is coming from phone, if charger is plugged in
Not charging (2)
Do the battery
management calibration
check DC voltage on pin
Yes
Yes Ok
60 of N100/ C CONT
if char g e r i s pluged in
nomin al VCH 1:10 (0, 8V)
No
check F101, L104, V100,
C103 and voltage
devider R103, R104
check DC Voltage on pin
62 of N100, C CONT
check DC voltage on pin
9 of N101, CHAPS if
Ok
charger is plugged in
resol d er or change D2 00
resol d er or change N1 00
Ok
Ok
try the c al i b ration aga in
resol d er or change N1 00
(2,8V)
No
if necessary
if necessary
if necessary
Try charging, if no A/D
Ok
value was wrong
Battery temperature
failed
Charge current
failed
check battery, X101,
voltage devider R120,
check DC voltage on pin
Yes
Yes
63 of N100, C CONT
check battery, X102,
voltage devider R120,
check DC voltage on pin
No
try the c al i b ration aga in
R122
No
R122
2 of N100, CCONT
No
check N101, R131 try the c al i b ration aga in
Ok
resol d er or change N1 00
Ok
try the c al i b ration aga in
Ok
resol d er or change N1 00
Ok
Ok
if necessary
if necessary
version 1.1 / 01.02.2000 Page 8 of 41
CONFIDENTIAL
F100 faulty
Check resistance of F100 (0Ω)
•
V100 faulty
Check resistance of V100 (50KΩ in circuit)
•
C103 faulty short circuit on Vcharge
Check resistance of C103 (50KΩ in circuit)
•
NOTE! V100 is connected in parallel to C103
•
L104 faulty Vcharge
Check resistance of L104 (0Ω)
•
L105 faulty Charge ground
Check resistance of L105 (0Ω)
•
N101 faulty/ poor soldering
Check PWMOUT on Pin 7 (1 Hz standard charger / 32Hz fast charger)
•
Check if CHARLIM on Pin 9 is 2.8V DC
•
Service & Analysis Center Europe
Training Team
N100 faulty/ poor soldering
Change if any A/D value is out of limit but the DC voltages are ok.
•
If DC voltages are wrong, check corresponding voltage dividers
•
Check PWMOUT on Pin 56 (1 Hz standard / 32 Hz fast)
•
X100 faulty/ poor soldering
Check connection of Vcharge; charge ground; charge control
•
X101 BSI; X102 BTEMP
Check connection if battery size or battery temp A/D are out
•
of limit
V102 faulty
Check if there is a short circuit in charge control line
•
Energy management Calibration
If charging stops too early
•
If message “not charging” appears on LCD
•
If any part in charging circuit has been changed
•
If any A/D value is out of limit, check the corresponding
•
DC Voltages on CCONT
version 1.1 / 01.02.2000 Page 9 of 41
Figure 3: Block diagram of charging concept
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Service & Analysis Center Europe
Training Team
X101
Battery connector
1
2
BSI Resistor (Inside of Battery)
2.2K .... 18K : NiCd Battery
20K .... 24K : Service Battery
27K .... 51K : 4.1V Lithium Battery
68K .... 91K : 4.2V Lithium Battery
X100
Sysrem Connector
1
3
2
14
4
5
X102
Battery Connector
BTEMP
BGND
T
47K NTC
BTEMP Resistor
inside of Battery
BSI
BVOLT
L103
F101
L105
Charger Ctrl.
VREF
V100
R120
L104
C103
R122
Current
Shunt
R104
R103
R116
VCH
VB
VB
R131
Chargedet.
1,16
2 ICHAR
8,12,16,21,
27,28,57
63
12
5
2,3,4
6,11,13
14,15
N101
CHAPS
710
VBACK
PWMOUT 1Hz / 32Hz
VCHAR
60 56 46 62
N100
CCONT
BB and RF
Regulators
8
9
2.5V DC min
DataClk 49
DataSelX 50
DataI/O 51
CCONTInt 52
Purx 54
C104
CHARLIM
G100
RTC Battery
Battery Type (BSI)
VBB
2
MCUGENOUT
119 DataSCLK
116 GenCCONTCSX
118 GenSDIO
123 CCONTInt
122 Purx
95
CardDetX
R120
R122
D200
MAD2
version 1.1 / 01.02.2000 Page 10 of 41
Low Stand-by time
CONFIDENTIAL
Low standby time
(battery is Ok)
Service & Analysis Center Europe
Training Team
check power
cons ump tion of the
phone:
Off state > 0-1mA
sleep mode > 1- 5 mA
Call mode >
200-500mA (lev el 19 / 5)
Ok
check the charging
circuit, use battery
management
calibration
Ok
check if sleep mode
function works
properly
No
change N5 50 , if
cons ump tion is Ok
refer to section "not
No
charging (2)" if any
A/D value is wrong
resold er or change
No
lift L560 lift L103
Ok
D200, MAD if
necessary
No No
change N100,
CCONT if
cons ump tion is Ok
"not charging (2)"
check C142,
C610-12, C105,
N101, change if
necessary
Ok
section
Ok
Calibrate RX and TX
values of the phone
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 acti viti es, games etc.)
No
Ok
refer to section
receiver /
transmitter failure
section "receiver /
transmitter failure"
N501 / N502 / N100 / N101 / D200 / Battery calibration - faulty
Check the current consumption in different operation modes
•
version 1.1 / 01.02.2000 Page 11 of 41
CONFIDENTIAL
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Training Team
Figure 4: current consumption values
Function mode Minimum current in mA Maximum current in mA
Off state 0 1,35
Sleep mode 1 5
Call mode GSM 900 250 440
Call mode GSM 1800 200 420
Disconnect the PA's N501 / N501 lift L560 and check the current again
•
Check if the current consumption comes from the first or second side of CCONT lift L103
•
Check C105, C142 or N101
•
Check solderings of the MAD
•
Change MAD
•
calibrate battery value if charging stops too early or battery is too hot after charging (see also chapter "Not charging)
•
Note! The Standby-time depends on the network side and on the user handling
Intermittent doesn't switch on
D210 FLASH faulty
Check if the handset switches on after removing the battery for few seconds
•
or after connecting it with the charger or headset
D210 Flash internal fail
•
version 1.1 / 01.02.2000 Page 12 of 41
Phone switches off itself
CONFIDENTIAL
Phone intermittend switches off
Yes
Service & Analysis Center Europe
Training Team
Check if this happens
only w ith 5V S IM-cards
and if the phone work s
probably w ith 3V S IM's
Yes
Check the 5V
supply voltage on
C131 with an
oscilloscope
Yes
Change C131 if the
noise is higher than
350mVpp
Check X101 and
No Wrong
X102, if poor soldered,
bent, soiled or old
version
No
Check amplitude of
32,768KHz square
wave at pin 124 of
MAD (2,8Vpp)
No
Check amplitude of
13MHz at pin 93 of
MAD (600mV pp)
Wrong
Wrong
Resolder, or change
the connector
Change or check
soldering of B100,
N100, R154, C101,
C102
Change or check
soldering of G650,
V600...
No
Check VBB 2,8V DC
on pin 55 of N100
Wrong
Change or check
soldering of N100,
C107
version 1.1 / 01.02.2000 Page 13 of 41
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