9 SIM-CARD and Connectors
The SIM-CARD is supplied via
at pin3 with
ASIC (D361) switched 2,9V voltage, activated by
If no SIM-CARD is connected, or if there is no response (CCIO) from the SIM-CARD,
the EGOLD+ tries 3 times to connect the SIM-CARD. After this time the EGOLD+
stops trying. That means, if the EGOLD+ is losing the connection while normal
operation of the mobile phone, the mobile must be switched off and on again.
The communication between the
and the SIM-CARD is done via the
pin6 by using
as a clock signal.
The diodes V520/521 are used to protect signal lines versus switching peaks.
Page 43 of 46
ICM MP CCQ ST
C45, M50 AND MT50
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