Nokia CardPhone 2 TROUBLESHOOTING INSTRUCTIONS 07
PAMS Technical Documentation
RPM-1 Series Transceivers
Disassembly and
Troubleshooting
Issue 1 12/99 Nokia Mobile Phones Ltd.
RPM-1
Disassembly and Troubleshooting
AMENDMENT RECORD SHEET
PAMS Technical Documentation
Amendment
Number
Date Inserted By Comments
12/99 OJuntune Original
Page 2
Nokia Mobile Phones Ltd.
Issue 1 12/99
PAMS Technical Documentation
Disassembly and Troubleshooting
CONTENTS
Vocabulary 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembly 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tools and Parts 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remove Antenna 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Open Top Cover Printed 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to use the Opening Tool 9. . . . . . . . . . . . . . . . . . . . . . . .
Using Screwdriver as disassembly tool 10. . . . . . . . . . . . . . . .
Open Bottom Cover subassembly 11. . . . . . . . . . . . . . . . . . . . . .
Remove PCB from Extension Box subassembly 12. . . . . . . . . .
Reassembly 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RPM-1
Page No
Install the PCB to Extension Box subassembly 13. . . . . . . . .
Assemble Bottom Cover subassembly 14. . . . . . . . . . . . . . . . . .
Close Top Cover Printed 14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Push Antenna into the Extension Box subassembly 15. . . . . . .
Baseband Troubleshooting 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current Consumption in Fault Diagnostics 16. . . . . . . . . . . . . . .
Card Phone does not Communicate with the Host Computer 17
MCU Problems 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flasah Programming Initialization sequence 19. . . . . . . . . . .
WinTesla Self Tests 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADC Readings With WinTesla 20. . . . . . . . . . . . . . . . . . . . . . .
SIM Card Failure 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SIM interface diagram 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SIM Card Reader pins 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio Fails 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Troubleshooting 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF trouble shooting principles 24. . . . . . . . . . . . . . . . . . . . . . . . . .
Quick check RX with WinTesla 26. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gather test equipment 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connect test equipment 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Settings and diagnostic 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Quick check TX with WinTesla 27. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test equipment list 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connect test equipment 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Settings & diagnostic 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GSM 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PCN 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RX trouble shooting 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Nokia Mobile Phones Ltd.
Page 3
RPM-1
Disassembly and Troubleshooting
Test equipment 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GSM Receiver 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Settings 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test diplexer 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test RX duplex filter 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test LNA (CRFU3 asic) 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test RX SAW filter 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test UHF mixer 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test 73MHz filter 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test SUMMA asic 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PCN Receiver 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Settings 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test diplexer 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test rx/tx switch 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test pre_LNA rx filter 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test LNA 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test RX RF SAW filter 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test UHF mixer 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test VHF mixer 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test 73MHz filter 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Summa asic 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAMS Technical Documentation
TX trouble shooting 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test equipment 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GSM TX 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Settings 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test SUMMA TX part 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test CRFU3 TX part 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test TX RF SAW filter 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test power control circuit 42. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test power amplifier 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test duplexer TX side 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test diplexer GSM side 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GSM1800 TX 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Settings 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test SUMMA TX part 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test CRFU3 TX part 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test 1st TX RF SAW filter 46. . . . . . . . . . . . . . . . . . . . . . . . . . .
Test buffer amplifier 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test 2nd TX RF SAW filter 47. . . . . . . . . . . . . . . . . . . . . . . . . . .
Test power control circuit 47. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test power amplifier 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test RX / TX switch 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test diplexer GSM1800 side 49. . . . . . . . . . . . . . . . . . . . . . . . .
Synthesizer Troubleshooting 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test equipment 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Issue 1 12/99
PAMS Technical Documentation
Settings 51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VCTCXO (G802) 51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UHF VCO (G801) 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VHF VCO (G803) 53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PLL IC (N800) 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13 Mhz buffer 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repair instructions 55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF–BB Interface 56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Points of GX9 57. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Points, Top side 59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Points, Bottom side 60. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembly and Troubleshooting
RPM-1
Issue 1 12/99
Nokia Mobile Phones Ltd.
Page 5
RPM-1
Disassembly and Troubleshooting
Vocabulary
ASIC Application Specific Integrated Citcuit
BB Baseband part of RPM–1
CCONT Power supply ASIC of RPM–1
CIS Card Information Structure specified by PC Card
standard. Stored in EEPROM in RPM–1
COBBA_GJP Audio codec and RF interface ASIC of RPM–1
DSP Digital Signal Processor
EEPROM Elecrically Erasable Programmable Read Only
Memory
Flash Reprogrammable non–volatile memory
GX9 Tranceiver module of RPM–1
HSCSD High Speed Circuit Switched Data
(multislot GSM transmission)
HW Hard Ware
MAD MCU + ASIC + DSP
MAD2WD1 Version of MAD2 ASIC used in RPM–1
MCU MicroController Unit
PCB Printed Circuit Board
PURX Power Up Reset, active low. Reset signal to
MAD2WD1
RPM–1 Type designation of Nokia Cellular Card Phone V.2
Sulo PC Card interface ASIC of RPM–1
PAMS Technical Documentation
Page 6
Nokia Mobile Phones Ltd.
Issue 1 12/99
PAMS Technical Documentation
Introduction
The purpose of this document is to help in hardware troubleshooting of
the RPM–1, Nokia Cellular Card Phone V.2. RPM–1 is a GSM900/1800
HSCSD PC Card.
Disassembly
Tools and Parts
RPM-1
Disassembly and Troubleshooting
Fig. 1 Disassembled parts, left to right:
0660200 Antenna
9507011 Top Cover Printed
9507010 Bottom Cover subassembly
9477002 Extension Box subassembly
GX9 module (PCB with components)
Tools:
Opening tool for the RPM-1 Phone
Screwdriver
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Nokia Mobile Phones Ltd.
Page 7
RPM-1
Disassembly and Troubleshooting
Remove Antenna
Pull Antenna smoothly from the Extension Box subassembly.
Refer to the picture below.
PAMS Technical Documentation
Fig 2. Note:
Do not bend the antenna.
Open Top Cover Printed
Use preferably the opening tool as you open the Top Cover Printed.
Please note that It is easy to damage covers with a screwdriver.
Note: (general)
Do not open Top Cover Printed from left side (top view). Flash component
may damage on the PCB.
Open Top Cover Printed only from right side (top view). See picture 3.
Page 8
Fig 3. Top view
Nokia Mobile Phones Ltd.
Issue 1 12/99
PAMS Technical Documentation
How to use the Opening Tool
STEP 1:
Put the sharp edge of the opening tool to the Top Cover Printed’s edge
and turn the opening tool smoothly. See picture 4.
RPM-1
Disassembly and Troubleshooting
Fig.4. Position of the opening tool
STEP 2:
Release the right side of the RPM-1 .
Push Top Cover Printed a little bit to left side after you have opened the
right side of the RPM-1 .
Open carefully the Top Cover Printed simultaneously pushing the Top
Cover Printed to left side .
See picture 5.
Fig. 5. Open Top Cover Printed
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Nokia Mobile Phones Ltd.
Page 9
RPM-1
Disassembly and Troubleshooting
STEP 3:
Lift Top Cover Printed. Top Cover Printed must be about 90 degree open.
See picture 6 below.
Fig.6. Lift Top Cover Printed
PAMS Technical Documentation
Using Screwdriver as disassembly tool
Use preferably the opening tool as you open the Top Cover Printed.
Please note that It is easy to damage the covers and the electronics, too,
using a screwdriver.
STEP 1:
Put the screwdriver to the edge of the Top Cover Printed.
Push the Top Cover Printed’s edge over the edge of the Bottom Cover
subassembly.
See picture 7.
Page 10
Fig. 7. Position of the screwdriver
STEP 2:
Release left side of the RPM-1 .
Push Top Cover Printed a little bit to left side after you have opened right
side of the RPM-1 .
Open carefully Top Cover Printed same time as you push Top Cover
Printed to left side .
Nokia Mobile Phones Ltd.
Issue 1 12/99
PAMS Technical Documentation
See picture 5.
STEP 3:
Lift Top Cover Printed. Top Cover Printed must be 90 degree open. See
picture 6.
Note when using a screwdriver:
Avoid scratching covers
Do not push screwdriver too much inside the RPM-1. Only a few mm is
allowed.
Open Bottom Cover subassembly
Use screwdriver as you open the Bottom Cover subassembly.
Note: (general)
Do not push screwdriver too much inside to Extension Box subassembly.
Only a few mm is allowed.
RPM-1
Disassembly and Troubleshooting
STEP 1:
Push screwdriver (use standard screwdriver ~∅ 1,50 mm) to gap be-
tween Extension Box subassembly and Bottom Cover subassembly (left
or right side).
Open Bottom Cover subassembly step by step as illustrated in pictures 8
to 9.
Fig. 8 : Open Bottom Cover subassembly
Fig 9. Open Bottom Cover subassembly
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Page 11
RPM-1
Disassembly and Troubleshooting
STEP 2:
–Lift Bottom Cover subassembly. See picture 10.
Fig. 10. Lift
PAMS Technical Documentation
Remove PCB from Extension Box subassembly
STEP 1:
–Lift and turn the GX9 to audio connector’s side and snap fit between Ex-
tension Box subassembly and GX9 will disengage.
Small pins near the audio connector will damage the GX9 if the module is
lifted in vertical direction.
The angle for turn is about 30 degree. Pull the GX9 smoothly from under
small pins. See picture 11.
Page 12
Fig. 11. Lift and turn
Note:
–Take extra care when performing this operation. Do not use too much
force, the PCB may break.
Nokia Mobile Phones Ltd.
Issue 1 12/99
PAMS Technical Documentation
Reassembly
Install the PCB to Extension Box subassembly
STEP 1:
–Slide carefully the GX9 under the Extension Box subassembly’s small
pins near audio connector.
–Turn and push the GX9 into the Extension Box subassembly after GX9 in
assembled under small pins.
–Assembly is OK as the snap fit between these parts engages. The as-
sembly angle for turn is about 30 degree. See picture 12.
RPM-1
Disassembly and Troubleshooting
Fig. 12. Slide and turn
Note:
–Do not use old Extension Box subassembly for assembly. Antenna con-
tact between Bottom Cover subassembly and Antenna insert may disengage.
–Use only new (unused) Extension Box subassembly.
–Do not bend audio connector springs as you assembled GX9. Be very
careful with the audio connector springs. Change audio connector if needed.
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Nokia Mobile Phones Ltd.
Page 13
RPM-1
Disassembly and Troubleshooting
Assemble Bottom Cover subassembly to the Extension Box subassembly
STEP 1:
–Put Extension Box subassembly on the Bottom Cover subassembly and
push it against table, etc. Push only from the Extension Box subassembly.
See picture 13.
PAMS Technical Documentation
Fig. 13. Push from the Extension Box subassembly
Note:
–Check the dimensions of the Bottom Cover subassembly grounding clips
before assembly. Dimension must be 1,80 +0,2 mm. Change the clips’
dimension into tolerance range if needed.
Clip is situated in the right side of the Bottom Cover subassembly (top
view).
Close Top Cover Printed
STEP 1:
Assemble Top Cover Printed to the holes of the Extension Box subassem-
bly. See picture 14.
Page 14
Fig. 14. Assembly angle
Nokia Mobile Phones Ltd.
Issue 1 12/99
PAMS Technical Documentation
STEP 2:
First assemble the left side of the RPM-1. It’s important to start assembly
near Extension Box subassembly. Do not push near flash component.
See picture 15.
RPM-1
Disassembly and Troubleshooting
Fig. 15. Close left side
STEP 3:
Assemble the right side as the left side was assembled. Start assembly
near Extension Box subassembly. See picture 16.
Fig. 16. Close right side
Push Antenna into the Extension Box subassembly
STEP 1:
–Push the Antenna smoothly to Extension Box subassembly
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Page 15
RPM-1
Disassembly and Troubleshooting
PAMS Technical Documentation
Baseband Troubleshooting
When a faulty RPM-1 is taken under investigation a first a thorough visual
inspection should be done. Special attention should be paid to
– Solderings and condition of PCMCIA connector X400,
– Solderings of Sulo ASIC D400,
– Alignment of BGA packaged ICs MAD2WD1, CCONT, COBBA and
Flash (D500, N700, N600 and D501 respectively)
Current Consumption in Fault Diagnostics
When the RPM-1 is placed in service adapter JBS–23 and RESET button
is being pressed , the current consumption should be around 30 mA..
If the current consumption of the RPM-1 is several hundred mAs even
when RESET button of service adapter is pressed, there is obviously a
short circuit in the main power supply rail or massive failure in one of the
following circuits: CCONT (N700), PA power switch (N701), Sulo (D400),
Sulo core voltage regulator (N400) or MBUS switch (D402). Check
PCMCIA supply voltage (VCC) resistance to ground to determine this.
If the current consumption of the RPM-1 is constantly significantly higher
than expected, for example 100–300 mA even when RESET button of
service adapter is pressed, but VCC to GND resistance is OK, either one
of CCONT’s (N700) regulator outputs is short circuited to GND or Sulo
core voltage regulator (N400) output is short circuited to GND. Check resistances to GND from CCONT regulator output voltages. (J702, J703,
J704, J705, J706, J708, J724 to be 2.8 V, J712 to be either 1.975 or 1.75
V and J709 to be 5 V.) Also check Sulo core voltage regulator output voltage to be 2.8 V. (This can be measured from capacitor C404’s positive
terminal.)
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Nokia Mobile Phones Ltd.
Issue 1 12/99
PAMS Technical Documentation
Disassembly and Troubleshooting
Card Phone does not Communicate with the Host Computer
RPM-1
Does laptop recognize the card
as Nokia Cellular Card Phone when
inserted to PC Card slot?
No
Check PCMCIA
connector X400
OK
Check Sulo ASIC
D400 solderings
OK
Check Vsulo level
2.8 V in C404
Fail
Fail
Fail
Yes
Probably a
problem with
MAD2WD1 ASIC.
Go to
MCU Problems
Repair X400
Repair D400
Check if Vsulo
is short circuited
PC Card interface is OK. Initiate
WinTesla connection with JBS–23
Phone not found
MAD2WD1 is
on line and working
Go to WinTesla self tests
Card power supply
fails. Check supply
voltage, check VCC
current consumption
during RESET, check
VCC line for possible
short circuits. If supply
is OK, problem is either
X400, D400, D402, N400,
N700, N701, N200 or N201
Not
5V
No Check Vsulo input
voltage VCC
WT conn.
can be created
OK
Check 32 kHz clock
J701. Square vawe,
VPP ~2.8 V
OK
Check 13 MHz clock
R411, sine vawe,
VPP> 0.5 V
OK
Reprogram CIS
OK
EEPROM
FAIL
Check X400
D400 and D401
Fail
Fail
Check VCC supply, N700,
B700+surroundings. Probably
N700 or B700 failure.
Check VCTCXO output,
13 MHz should be in R818
OK
Faiure in V800, R816,
R817, R819, C402 or
R411, or RFC signal
is short circuited
5V
Change N400
Fail
Check VXO level
2.8V in C836
OK Fail
Change G802
Shot circuit in VXO
line or N700 failure
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Nokia Mobile Phones Ltd.
Page 17
RPM-1
Disassembly and Troubleshooting
MCU Problems
Host computer recognizes
card as Nokia Cellular Card Phone
Try Reflashing the Card Flashing is succesful
ERROR15
PAMS Technical Documentation
If WT connection still
cannot be initialized.
change D500
MCU Boot
failure 01
Change D500
Check VBB
2.8 V in C717
OK
Check V2V
1.98 or 1.75 V
in J712
OK
MCU Boot
failure 02–04
Fail
Fail
Check VBB power net
for short circuits
Check V2V power net
for short circuits
MCU Boot failure 05
No cracs
in D501
OK
Check N700, L700
D500 or D501
failure. Visually
inspect D501 for
microscopic cracs.
Short circuit
Visually OK
OK
Short circuit
Cracs in
D501
Change D501
Try and identify
SC cause. Possible
places are: D500,
D501, D502, N600
N700, V703
Change N700
Try and identify
SC cause. Possible
places are: D500
and N700
Check that
PURX goes high
after power up. J503
OK
Check that after FBUS TX (J413) transition
from HI to LO, MBUS (J502) goes from
LO to HI. (See Flash Programming initiation
sequence picture below.)
Page 18
PURX stays low
Nokia Mobile Phones Ltd.
If laptop recognizes Cellular Card
Phone When inserted to PC Card
slot, but PURX J503 stays low
when phone is in JBS–23, check
R502 and D400. If OK, change D400
MBUS (J502) always high
FBUS TX (J413) always low
Change D402
Change D500
Issue 1 12/99
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