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Shielding on a Jazzmaster? Help...

  • 11-11-2011 6:09pm
    #1
    seachto7
    Closed Accounts Posts: 7,863 ✭✭✭


    Hi all,

    I looked through a few old threads on shielding, and maybe my answer is there, but I have a small issue with my Jazzmaster.

    I recently got a new jack input installed, and I would have thought the person who did it would have checked this issue.

    There is an almighty buzz off it now. I tried it through a few amps. The buzz almost disappears when you touch the strings as is expected. I know by their nature, jazzies are a bit noisy, but this is different to before.

    Rather than take it back again to the guy who did it (and again, as seems to be the case all the time), I'm going to try and do it myself. Is there much to do? Am I in danger of killing myself? I am not experienced in this at all.....


Comments

  • #2
    Doc_Savage
    Registered Users, Registered Users 2 Posts: 677 ✭✭✭Doc_Savage


    the only thing to do is not make a loop.... i used tin and copper sheet before... made flat sections for the back of each cavity, then made an edge piece for each one... soldered them together to get tightly fitting bucket things for each cavity and glued a piece the same shape as the bottom piece to the back of the pickguard wherever necessary... added holes as appropriate and took a line off the earth from the bridge to the shielding, making sure that no loose wires were touching the shielding and that once a cable left the shielded area carrying the guitar signal that the cable was shielded appropriately....

    hope that makes sense?

    also try the guitar with a high quality lead straight into an amp first if you already haven't!


  • #3
    ciaranmac
    Registered Users, Registered Users 2 Posts: 495 ✭✭ciaranmac


    If it's buzzing it could be that a connection to ground is broken after the work you got done. Does the buzz go away if you touch the strings?

    As regards shielding you can get sticky copper that is conductive on both sides (i.e. the adhesive also conducts). It comes as thin flexible sheeting or tape and it's the business for shielding in small awkward cavities. Make sure all your shieldings are grounded, you can do this by soldering wire onto the side that isn't sticky and connecting them together, then connect it to a grounded point like the shielding on one of the pots. That's assuming the pots are grounded properly.

    Like Doc_Savage said you should try with a different lead so you can tell if the problem is with the guitar or the lead. Also try a different amp.


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