Antenna Switch (Electrical/Mechanical) - Siemens C75 Service Repair Documentation

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4.7 Antenna switch (electrical/mechanical)

Internal/External <> Receiver/Transmitter
The C75 mobile have two antenna switches.
a) The mechanical antenna switch for the differentiation between the internal and
external antenna.
b) The electrical antenna switch, for the differentiation between the receiving and
transmitting signals.
To activate the correct tx pathes of this diplexer, the SGOLDlite signals
and RF_FE_DTR_DCS
Internal/External antenna switch
The electrical antenna switch
Service Repair Documentation
Level 2.5e – C75
are required.
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RF_FE_DTR_GSM
Release 1.0