VC-1 help

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Viewing 8 posts - 1 through 8 (of 8 total)
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  • #15221
    Avatardbx160
    Participant

      Hi Ted,
      I have a JM VC1 (with enhancer section), I am getting a high pitched whine from it that get’s louder when the Phantom is engaged, it also get’s louder when as you are turning up the output pot.
      Any ideas on how I can fix this?
      maybe I need to replace the resistors?
      I am located in Canada.
      Thank you for your time….Myke

      #15627
      Avatardbx160
      Participant

        Anyone? :? :?

        #15628
        Ted FletcherTed Fletcher
        Keymaster

          This could be a sad case…… This sounds like an early VC1 that used a strange chip in the enhancer…. I have known of the problem and was only able to fix it by exchanging chips…. but this is a surface-mount chip and it’s not easy, and they are no longer available!
          I never like to give up on old gear, but in this case I have to suggest that the green bin outside the back door might be the place for it. 😥
          Ted

          #15631
          Avatardbx160
          Participant

            REALLY 😮
            Ted, could you give me the name/model of the chip needing replacing and the name/model of the preferred exchanged chip?
            Thanks for replying.
            Myke

            #15632
            Avatardbx160
            Participant

              Is there a way I could mod it to bypass that enhancer?
              Myke

              #15633
              Ted FletcherTed Fletcher
              Keymaster

                Bit of a strange one….. there`s nothing in a VC1 that can cause a whine except maybe something wrong in the enhancer circuit.
                In any case it`s not something that could be fixed locally. If it`s a really treasured mic amp, then please send it back to me at the Sound House and I will have a look at it and most likely fix it (can`t guarantee on very old gear).
                As a service, I charge just 25UK pounds plus the cost of returning the unit…. in the case of a VC1 these are quite light so 6 UK pounds should cover it.
                If you do send it to me, dont forget to mark it clearly ‘equipment for repair` and enclose a note with the return address! :?

                #15629
                Avatardbx160
                Participant

                  Deal,
                  I just need to find your address.
                  thanks…Myke

                  #15630
                  Ted FletcherTed Fletcher
                  Keymaster

                    It`s……
                    TFPRO
                    The Sound House,
                    Hunsdon Road,
                    Torquay
                    TQ1 1QB
                    UK

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