Communications
Confidential 37 COM MD CC GRM T
J. Junggebauer
Version 1.0 July 2005
7.9 Loudspeaker faulty
Affected unit: Gigaset C355
Diagnosis code IRIS: 72200 (ACOUSTICS / RECEIVING / LOUDSPEAKER)
Repair level: Level 1
Components: Loudspeaker
Needed equipment: Screwdriver or similar tool, multimeter
Working material: none
Diagnosis:
The diaphragm of the loudspeaker could be affected by dust or humidity or the
loudspeaker could be electrically faulty. Check the sound of the speaker.
If there is no sound, measure the resistance of the coil with a multimeter.
The resistance should be appr. 18 ohms. In other cases replace it.
Repair:
The loudspeaker is fixed with 2 clamps.
In order to get it out insert a screwdriver in the loudspeaker part of the clamp and turn
it to disengage the hook. Then lift the loudspeaker and do the same on the other
hook. Take out the loudspeaker. Pictures below are taken from C150 base station.
Test:
Check the function of the speaker.
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