Sim Card Failure - Nokia NSE–3 SERIES Service Manual

PAMS
Technical Documentation

SIM Card failure

VSIM(36), DATAO(43),SIMRSTO(42) and SIMCLKO(38) lines
rises up to 5 V after power on at pins of N100 (CCONT)
SIMPWR(30), DATAA(44), SIMRSTA(40), SIMCLK(41) and SIMIOC(39) lines
SIMCardPwr(129), SIMCardData(120), SIMCardRstX(127), SIMCardClk(126) and SIMCardIOC(128) lines
Check again that voltage level at pin 95 (SIMCardDetX) of D200 is lower than 1.5V
Original, 11/97
Disassembly & Troubleshooting Instructions
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
rises up to 5 V after power on at pins
of SIM card
NO
NO
rises up to 2.8 V after power on at pins of N100 (CCONT)
NO
rises up to 2.8 V after power on at pins of D200 (MAD2)
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
Check
NO
R120, R122, X101
C120, C160
Check
YES
SIM card and SIM reader
connectors
YES
X302, R124, R125, R128
YES
NO faulty circuit
N100 (CCONT)
NO Check
X302, R124
Check
NO
N100
NO Check
D200
NSE–3
Check
faulty circuit
N100 (CCONT)
YES
faulty PCB
Page 17