Siemens C2588 Service Manual download pdf (Page 36)

Information and Communication Products

Communication Devices

V1.2 Page 4 of 34 ICP CD ST

D. Schnoor

8/99

2 Antenna Connector

2.1 Affected Units

2.1.1 Type: C25

2.1.2 Affected IMEIs / Date Codes: All / All

2.1.3 Affected SW-Versions: All

2.1.4 Fault Code for LSO reporting: 3ANC

2.2 Fault Description

2.2.1 Fault Symptoms for customers:

Network Search when using the external antenna

(carkit)

No location update possible on external antenna (carkit)

2.2.2 Fault Symptom on GSM-Tester:

Output power problems on the external antenna

No location update possible

2.2.3 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 openend and the connection to the

external antenna socket is made. See drawing below.

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Siemens C2588 Service Manual Page 36