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.
To Next Page
Loading...
