Antenna Connector - Siemens M35 Series Service Manual

Antenna Connector

Affected Units
Type:
Affected IMEIs / Date Codes:
Affected SW-Versions:
Fault Code for LSO reporting:
Fault Description
Fault Symptoms for customers:
Fault Symptom on GSM-Tester:
Component Information
The Antenna Connector is a mechanical switch operated by the RF plug of a carkit or, for testing
purposes, of an RF clip.
Normally the RF signal goes to and comes from the internal antenna. Whenever an RF plug is
plugged into the antenna connector the connection to the internal antenna is opened and the
connection to the external antenna socket is made. See drawing below.
From
Power
Amplifier/
To Receiver
C/M/S35
All / All
All
3ANC
Network Search when using the external antenna (carkit)
No location update possible on external antenna (carkit)
Output power problems on the external antenna
No location update possible
To / From
Internal
Antenna