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Problem with electronic.

Discussion in 'Pickups & Electronics [BG]' started by maxherlim, Nov 3, 2005.

  1. maxherlim


    Aug 12, 2004
    I have a FBB bass custom with obp-3 preamp. It was working fine until I tightened the input jack. Now I heard like humming/buzzing from the bass but when I touched any knobs or string, the noise was gone. Did I do anything wrong? Any suggestion?

  2. David Wilson

    David Wilson Administrator Staff Member Administrator Supporting Member

    Oct 14, 2002
    Lower Westchester, NY
    sounds like a ground wire came disconnected, do you see any floating wire ends in the cavity?
  3. pkr2


    Apr 28, 2000
    coastal N.C.
    If you didn't hold the jack from inside the cavity as you tightened the nut, you may have twisted a ground wire loose. Look real close at the wires at the jack solder terminals.
  4. luknfur


    Jan 14, 2004

    Tres, and that's a fact - Jack!

    Hum increasing touching strings/etc. is a red flag for ground issue.