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STC-3A Seymour Duncan Not workin Help!

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  • STC-3A Seymour Duncan Not workin Help!

    Hello guys .... please ...
    Does anyone know tell me the values of ceramic capacitors of the STC-3 circuit?
    I need to do maintenance on my .. it just stopped .. I thought it was the TL026C .. ma changed it and it still doesn't work ..
    the electrolytic capacitors are all in order ...
    The 1U transistors are working.


    I found the following values: (values found off board)

    1 - 302 nF
    2 - 54 nF
    3 - 54 nF
    4 - 5,0 nF
    5 - 15 nF
    6 - 3,7 nF
    7 - 0,7 nF
    8 - 45 nF
    9 - 103 nF
    10 - 0,7 nF
    11 - 2,4 uF (micro)
    12 - i don't remember.

    Click image for larger version

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  • #2
    Re: STC-3A Seymour Duncan Not workin Help!

    Welcome to the forum!

    Hopefully someone here would have that answer. In case they don't, I'd suggest calling for the fastest response:

    Call Us-- M-F 8:00-5:00 PST
    Tech Support Hotline:
    805-716-6747
    Dave, Ambassador/Writer/Artist for Seymour Duncan

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    • #3
      Re: STC-3A Seymour Duncan Not workin Help!

      For what it's worth, bad caps are the last thing I'd suspect in a "just quit working" scenario. There are a several micro-transistors on that circuit. I'd check them first. A DMM will do it. Especially if it has a diode function.

      Comment


      • #4
        Re: STC-3A Seymour Duncan Not workin Help!

        Originally posted by Mincer View Post
        Welcome to the forum!

        Hopefully someone here would have that answer. In case they don't, I'd suggest calling for the fastest response:

        Call Us-- M-F 8:00-5:00 PST
        Tech Support Hotline:
        805-716-6747
        thank you!! I wiil calling!

        Comment


        • #5
          Re: STC-3A Seymour Duncan Not workin Help!

          Originally posted by ArtieToo View Post
          For what it's worth, bad caps are the last thing I'd suspect in a "just quit working" scenario. There are a several micro-transistors on that circuit. I'd check them first. A DMM will do it. Especially if it has a diode function.

          I tested everything. My stc3 does not work.
          I do not know what else to do.
          I am not an electronics technician, but I can measure the components, I found nothing wrong.
          My Stc3 simply stopped twice.
          The first one came back alone.
          The second never came back!

          Comment


          • #6
            Re: STC-3A Seymour Duncan Not workin Help!

            Call, and they may be able to help you.
            Dave, Ambassador/Writer/Artist for Seymour Duncan

            Comment


            • #7
              Re: STC-3A Seymour Duncan Not workin Help!

              Originally posted by Mincer View Post
              Call, and they may be able to help you.
              Do you have a support e-mail?
              Because i live in brasil. I can't calling..

              Comment

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