Siemens Sivacon S8 Repair Documentation - Page 5

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2.4.1.2Repair by component change

2.4.1.3Repair by SW-Booting

2.4.1.4Test

2.4.2List of needed material

2.4.2.1Components

2.4.2.2 Jigs and Tools

V1.2

the program. Start the test, when the program says „Check power and

phase of external antenna with your GSM-Tester", switch the CMD to

„LOCAL" mode and enter the „MODULE TEST".

On the CMD display you can see the frequency error of the handset.

(Make sure that the CMD is on channel 124, power level 5!)

If the frequency error is higher than 2kHz, the VCXO has to be

replaced.

Use hot air blower to remove defective VCXO.

Avoid excessive heat!

Watch surrounding components!

Resolder new VCXO afterwards.

Not possible!

Retest handset after repair as described above.

The frequency error must now be < 2kHz.

VCXO

Part-Number: L36145-G300-Y19

Hot Air Blower

Page 5 of 22

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Communication Devices

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D. Schnoor

06/98