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  1. #1
    Alwin Koo via CellPhoneKB.com
    Guest
    Hi there,

    Just wondering if anyone has or knows the schematics for the Nokia 3650
    Hands Free headset? I know that it's a 4 conductor and it uses the 2.5mm 3
    band jack, but I'm not sure which goes to which.

    I'd like to build an two port interface so that my fiance and I can
    communicate simutaneously with friends on the same phone. I've tried the
    speakerphone option but it doesn't seem to handle to well when there is
    excess noise on the pickup.

    Can anyone help?

    Thanks,
    Bookoopoo

    --
    Message posted via http://www.cellphonekb.com



    See More: Nokia Headsets 4 conductor schematic required




  2. #2
    L David Matheny
    Guest

    Re: Nokia Headsets 4 conductor schematic required

    "Alwin Koo via CellPhoneKB.com" <[email protected]> wrote in message
    news:[email protected]
    > Hi there,
    >
    > Just wondering if anyone has or knows the schematics for the Nokia 3650
    > Hands Free headset? I know that it's a 4 conductor and it uses the 2.5mm
    > 3 band jack, but I'm not sure which goes to which.
    >
    > I'd like to build an two port interface so that my fiance and I can
    > communicate simutaneously with friends on the same phone. I've tried the
    > speakerphone option but it doesn't seem to handle to well when there is
    > excess noise on the pickup.
    >
    > Can anyone help?
    >
    > Thanks,
    > Bookoopoo
    >

    It's probably similar to the one described on this page:
    http://free-zg.htnet.hr/GoranJurkovic/nokia/
    It's been posted before.





  3. #3
    Alwin Koo via CellPhoneKB.com
    Guest

    Re: Nokia Headsets 4 conductor schematic required

    Yep, that's exactly what I wanted! Thanks for that David!

    --
    Message posted via http://www.cellphonekb.com



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