Communications
Confidential 39 COM MD CC GRM T
J. Junggebauer
Version 1.0 July 2005
7.11 Line seizure problems
Affected unit: Gigaset C350, C355
Diagnosis code IRIS: 93000 (FUNCTIONALITY / CALLING PROBLEMS)
Repair level: Level 2.5
Components: Philips IC PHC2300 or alternative component
Needed equipment: Hot air blower, soldering iron, multimeter
Working material: Flux, solder
Diagnosis:
Line seizure is not possible or connection can not be released. The IC PHC2300 (or
alternative component) consists of 2 transistors and is responsible for line seizure.
Measure the 2 transistors with a multimeter.
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