Siemens Sivacon S8 Repair Documentation - Page 26

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2.1.2Affected IMEIs / Date Codes: All / All

2.1.3Affected SW-Versions:

2.1.4Fault Code for LSO reporting:

2.2Fault Description

2.2.1Fault Symptoms for customers:

2.2.2Fault Symptom on GSM-Tester:

The VCXO (Voltage Controlled Crystal Oscillator) is responsible for generating the

13 MHz reference frequency of the handset.

If it is defective, the handset cannot synchronize to the base station anymore.

2.3Priority:



........ Mandatory



........ Repair



........ Optional



........ Not Yet Defined

2.4Repair Documentation

2.4.1Description of procedure:

2.4.1.1Diagnosis

V1.2

Network Search

Handset not logging into network

Frequency error in synchronized mode >90 Hz

No location update possible

Check the output frequency of the VCXO using the level-2 testing

program for E10 / S6 Power GSM.

Switch off the „CMD in Use" option in the S611.INI file and restart

Page 4 of 22

Information and Communication

All

3VCX

Communication Devices

ICP CD ST

D. Schnoor

06/98