Sim Card Failure - Nokia NSB-1 Series Troubleshooting Instructions

NSB–1/3
Troubleshooting Instructions

SIM Card failure

VSIM Inputs (pins 30,39,40,41,44) at CCONT (N100)
VSIM –lines (pins 129,120,127,126,128) at MAD2 (D200)
Check again that voltage level at pin 95 (SIMCardDetX) of D200 is lower than 1.5V
Page 20
Insert SIM card fault
YES
Voltage level < 1.5 V
at pin 95 of D200 when
BSI resistor is connected
YES
VSIM, DATA, RESET and CLOCK lines
at Sim–card reader (X150) rises up to 5V
after power on
NO
VSIM Outputs (pins 36,38,42,43) at CCONT (N100)
rises up to 5 V after power on
NO
rises up to 2.8 V after power on
NO
rises up to 2.8 V after power on
NO
If it is, change D200
Card Rejected fault
YES
VSIM is according the specification
VSIM = 2.8 V min (with 3 V SIM card)
VSIM = 4.5 V min (with 5 V SIM card)
YES
The ATR data can be seen at pin 43
(CCONT, N100)
YES
The ATR data can be seen at pin 120
(MAD2, D200)
YES
SIMIOControl line (N100 pin 36) is "1"
during the ATR message
YES
Check D200
Technical Documentation
Check
NO
R107,R104,X101
C120, C121
Check
YES
SIM card and SIM reader
connectors
Check
YES
X150,R152,R101,
C108,C106,C107,C167
YES
NO faulty circuit
N100 (CCONT)
Check
NO
X150,R101
Check
NO
N100
Check
NO
D200
Original 06/98
PAMS
faulty circuit
N100 (CCONT)
YES
faulty PCB