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cell phone, static comes from mic?

Discussion in 'Electronic Repair' started by beerismygas, Aug 11, 2007.

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  1. beerismygas

    beerismygas Guest

    hi there, am about to tinker inside my nokia 1110, which although
    obsolete has served me quite well. its current problem is a static
    like sound, which i can hear even while the phone is still dialing.

    does static generally come from a fault in the mic? thx
  2. Arfa Daily

    Arfa Daily Guest

    The mic that these phones employ is a condenser mic capsule, which has a
    built in FET amplifier. I've had them go bad on regular telephones and kick
    up a 'static-y' sort of noise which appears on the sidetone as well as the
    outgoing audio, so it is a possibility. As a first move, try just
    disconnecting it. If the noise goes away, chances are it is the mic.

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