Nokia 5130 Troubleshooting Instructions
PAMS Technical Documentation
NSK–1/3 Series Transceivers
Troubleshooting
Instructions
Original 05/98
NSK–1/3
PAMS
Troubleshooting Instructions
Technical Documentation
CONTENTS
Trouble Shooting 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Phone is totally dead 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flash programming doesn’t work 4. . . . . . . . . . . . . . . . . . . . . . .
Flash Programming (1) 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flash Programming failure (2) 7. . . . . . . . . . . . . . . . . . . . . . .
Power doesn’t stay on, or phone is jammed 8. . . . . . . . . . . . . .
Display Information: Contact Service 9. . . . . . . . . . . . . . . . . . . .
The phone doesn’t register to the network or phone doesn’t make a call 9
Phone register failure 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Instructions for RX troubleshooting 12. . . . . . . . . . . . . . . . . . .
Instructions for TX troubleshooting 14. . . . . . . . . . . . . . . . . . .
Fault finding chart for 13 MHz oscillator 16. . . . . . . . . . . . . . .
Fault finding chart for VHF VCO 17. . . . . . . . . . . . . . . . . . . . . .
Fault finding chart for UHF VCO 18. . . . . . . . . . . . . . . . . . . . . .
SIM card is out of order 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SIM Card failure 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio failure (1) 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio failure (2) 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charger failure 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page No
Page 2
Original 05/98
PAMS
NSK–1/3
Technical Documentation
Trouble Shooting
The following hints should facility finding the cause of the problem when
the circuitry seems to be faulty. This trouble shooting instruction is divided following section.
1. Phone is totally dead
2. Flash programming doesn‘t work
3. Power doesn‘t stay on or the phone is jammed
4. Display information: Contact Service
5. Phone doesn‘t register to the network or phone doesn‘t make a call.
6. Plug in SIM card is out of order (insert SIM card or card rejected).
7. Audio fault.
8. Charging fault
The first thing to do is carry out a through visual check of the module. En-
sure in particular that:
a) there are not any mechanical damages
b) soldered joints are OK
Troubleshooting Instructions
Original 05/98
Page 3
NSK–1/3
PAMS
Troubleshooting Instructions
Phone is totally dead
This means that phone doesn’t draw current at all when the power switch
is pressed or when the watchdog disable is grounded (J113, J114 connected together).
Used battery voltage must be higher than 3.0 V. Otherwise the hardware
of CCONT (N100) prevents totally to switch power on.
Phone is totally dead
YES
Check VBATT at CCONT
(N100 pins 8,12,...) =3.6V
YES
Voltage at pin 29 of CCONT (N100)
is 3.6 V
Technical Documentation
NO Failure in VBAT line
Check X101, X102
NO
Faulty circuit N100
YES
N100 pin 55 (VBB) 2.8 V
N100 pin 25 (VXO) 2.8 V
when PWR switch is pressed
or watchdog disable pin is grounded
YES
See section: Power Doesn’t Stay On
NO
CCONT (N100) pin 29 0V when
PWR switch is pressed or
watchdog disable is grounded
Faulty circuit N100
Flash programming doesn’t work
There is two possibilities to route programming voltage VPP.
– If regulator N200 is used the programming voltage comes from the regulator (VPPSW) via UI–connector to flash memory D210.
– Other way is to route Vpp from CCONT pin 36 to UI–connector and
again to flash memory.
NO Check X99,R103
Check UI module
YES
Page 4
In flash programming error cases the flash prommer can give some information about a fault.
The fault information messages could be:
– MCU doesn’t boot
– Serial clock line failure
– Serial data line failure
– External RAM fault
– Algorithm file or alias ID don’t find
– MCU flash Vpp error
Original 05/98
PAMS
NSK–1/3
Technical Documentation
In cases that the flash programming doesn’t succeed it is possible to
check short circuits between the memories and the MCU (MAD2). This
test is recommended, when the fault information is: MCU doesn’t boot,
Serial clock line failure or Serial data line failure.
The test procedure is following:
1. Connect the short circuit wire between the test points J206 and J207.
2. Switch power on
3. If the voltage level in testpoint J205 is 2.8 V (”1”), the interface is OK. If
there is a short circuit, the voltage level in testpoint J205 stays low and
32kHz square wave signal can be seen in the lines which are already
tested.
It must be remembered that this test can only be used to find short circuits, not open pins. Also upper data lines (15:8) of flash circuit D210 are
not included to this test.
Troubleshooting Instructions
passed
CCONT pin 54
MAD pin 38
MAD pin 134
J225
( PURX )
( MCUAD0)
( ExtSysResX))selftest
Original 05/98
Page 5
NSK–1/3
PAMS
Troubleshooting Instructions
Flash Programming (1)
Flash programming doesn’t work
If the fault information from the prommer is:
connect watchdog disable (J114) to GND (J113)
EEPROM (D230) pin8 (VBB) 2.8V
VVCXO 2.8V (G703, C721)
YES
a) MCU doesn’t boot
b) serial data line failure
c) serial clock line failure
connect:
OK
YES
NO
Technical Documentation
check
WDDIS line –> N100 pin29
OK
Check
Fault finding chart
for 13 MHz
oscillator
See section: Phone is totally dead
NO Sleep clock (SCLK) J201
J121 (Purx)=”1” (2.8V)
YES
NO
MAD2 pin 93 (J200): 13MHz sine wave
clock signal: 500 mVpp min.
YES
Check that following lines are correct from X131 to D200:
MBUS: X131 pin11 –> D200 pin112
FBUS_TX: X131 pin13 –> D200 pin104
FBUS_RX: X131 pin12 –> D200 pin109
check also pullup and pulldown resistors: R200, R201, R123
GND : X131 pin 9 –> GND
OK
Enable the selftest function of D200 by connecting
shortcircuit between testpoints J206 and J207
Connect an oscilloscope to testpoint J205 and switch
power on
square wave 32 kHz
Faulty circuit N100
or over loaded PurX line
YES
check sleep
NO
clock circuitry
(B150,R197...)
Page 6
Voltage level rises to ”1” after power on at testpoint J205
YES
There could be open pins in circuits D200 (D211, D240)
If not, the PCB or D200 (D221, D210) is faulty
NO
There is a shortcircuit
somewhere in memory control
lines or MCU address lines or
MCU lower (7:0) data lines
Original 05/98
PAMS
NSK–1/3
Technical Documentation
Flash Programming failure (2)
Flash progrmming doesn’t work
YES
If the fault information from the prommer is:
External RAM fault
YES
Check pins of SRAM (D221)
Check control lines of SRAM:
RAMSelX ...
Troubleshooting Instructions
Flash progrmming doesn’t work
YES
If the fault information from the prommer is:
Algorithm file or alias ID don’t find, ID is unknown etc.
YES
Flash progrmming doesn’t work
YES
If the fault information from the prommer is:
MCU flash Vpp error
YES
D210 pin13 (C211)
Vpp=2.8V
YES
Faulty component
D210 or C211
NO
Check output of regulator
N200 pin4 2.8V
YES
Check UI connector X99
and zero ohm resistor
Check pins of FLASH (D210)
Check control lines and upper data lines (15:8)
of FLASH: ROM1SelX...
NO
Check V8
N200 pin6
Faulty component N200
or C213, C212
NO
Check V109,
C124, C148
Faulty
component
N100
Original 05/98
Page 7
NSK–1/3
PAMS
Troubleshooting Instructions
Technical Documentation
Power doesn’t stay on, or phone is jammed
If this kind of fault has come after flash programming, there are most
probably open pins in ICs.
The soldered joints of ICs: D200 (MAD2), D210 (FLASH), N100
(CCONT), D221 (SRAM) are useful to check at first.
Normally the power will be switched of by CCONT (N100) after 30 seconds, if the watchdog of the CCONT can not be served by software.
The watchdog updating can be seen by oscilloscope at pin 50 (DataselX)
of CCONT.
In normal case there is a short pulse from ”1” –> 0 every 8 seconds.
The power off function of CCONT can be prevented by connecting a short
circuit wire from CCONT pin 29 to ground.
Power doesn’t stay on or phone is jammed
Check:
Fault finding chart for
13MHz oscillator
YES
CCONT watchdog is served?
(pin 50 pulses 1 –> 0)
NO
Connect watchdog (WWDDIS) to GND (J113,J114)
OK
EEPROM (D230) pin8 (VBB) 2.8V
VVCXO 2.8V (CCONT pin25 –> G703)
YES
J121 (PURX) = ”1” (2.8V)
YES
NO
MAD2 (D200) pin 93: 13 MHz sine wave
clock signal: 500 mVpp min.
YES
NO
NO J201 sleepclk (SLCLK)
software is able to run
YES
check UI module
If power is switched off
after few seconds, check
BSI and BTEMP lines
VBAT is correct
3.6 V
square wave 32 kHz
Faulty circuit N100
or over loaded PurX line
YES
YES
N100 is faulty
check sleep
NO
clock circuitry
(B150, R197...)
Page 8
Open pins or faulty circuit:
D200, D210, D221, N100
Original 05/98
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