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Buzzer defect

Discussion in 'Troubleshooting and Repair' started by mohammed jaffer, Sep 3, 2014.

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  1. mohammed jaffer

    mohammed jaffer

    1
    1
    Sep 3, 2014
    Dear Sir,
    In one of my PCB there is a buzzer which receives voltage via a FET,but the issue is the buzzer o/p is gud in some and having error in other bords.I reassembled the fets and the buzzer too, but still the buzzer is giving some ceeepy sound,kindly advice
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
    Welcome Mohammed,
    I moved your post to a new thread - it didn't belong in the original thread.

    Show us a circuit diagram and tell us the type of buzzer and FET you are using. Is this a DC-buzzer that generates sound by itself or does it require an AC signal to generate sound? How is the FET controlled? What are your operating voltages?
     
  3. davenn

    davenn Moderator

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    Sep 5, 2009
    lol we did the move at the same time Harald
     
  4. Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
    Hi Dave, what a coincidence. We both seem to have chosen the same target forum. :)
     
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