PAMS
Technical Documentation
NSE–3
Disassembly & Troubleshooting Instructions
Page 16
Original, 11/97
SIM card is out of order
The hardware of the SIM interface from MAD2 (D200) to the SIM connec-
tor (X302) can be tested without SIM card.
When the power is switched on and if the BSI line (X101;1) is grounded
by resistor, all the used lines (VSIM, RST, CLK, DATA) rises up to 5 V four
times. Thus ”Insert SIM card” faults can be found without SIM card.
The fault information ”Card rejected” means that ATR message (the first
message is always sent from card to phone) is sent from card to phone
but the message is somehow corrupted, data signal levels are wrong etc.
or factory set values (stored to the EEPROM) are not correct.
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