Information
and
Communication Mobile
Confidential
23
ICM MP CCQ GRM C
J.
Junggebauer
Version 1.1
October 2003
7.8 Loudspeaker
faulty
Affected unit:
Gigaset
SL1
Diagnosis code IRIS:
72200 (ACOUSTICS / RECEIVING / LOUDSPEAKER)
Repair level:
Level
1
Components: Loudspeaker
Needed equipment:
Multimeter
Working material:
None
Diagnosis:
The diaphragm of the loudspeaker could be affected by dust or humidity or the
loudspeaker could be electrically faulty.
Make a sidetone check (service-menu) in order to check the sound of the speaker.
If there is no sound, check the resistance of the coil with a multimeter.
The typical impedance is appr. 16 ohms. In other cases replace it.
Repair:
Replace loudspeaker.
Test:
Put the repaired board in a testhousing.
Make a sidetone check by blowing into the microphone and checking the volume
of the noise on the loudspeaker.
