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Big Noise when I touch the Magnet of Neck Pickup

Discussion in 'Basses [BG]' started by sucho2000, Apr 18, 2010.

  1. sucho2000


    Nov 19, 2009

    I just got delivered a beautiful MIJ Fender Jazz bass 75 RI
    made in 1994~1995..

    I have been inspecting and testing and found that

    Not touching any strings, when my finger makes contact with the lowest magnet of the neck pickup..
    It makes a significant noise..

    The Pups balance was 50:50, so that is not the
    hum-cancelling issue.

    Bridge pickup I did the same thing, but not that bad...
    But the Lowest magnet outta 8 on the neck pickup does it?

    I used a CIJ 75 RI for 5 years, but never noticed this..

    Is this a normal Single Coil Pup noise?
    Think I should see Luthier for this?


    BTW is the body Basswood or Alder or Ash? :smug:

  2. gumtown


    May 7, 2007
    New Zealand
    i don't know much about the particular model you have, but the noise could be from the pickup windings have shorted against the magnet. Try connecting a temporary ground wire to the pickup pole, and if the sounds cuts out when playing that string and the wire touching the metal parts, you have a shorted pickup winding. A multi ohm meter should confirm that.
    Otherwise the metal parts of the pickups might need grounding.
  3. Craig_S

    Craig_S Banned

    Oct 15, 2008
    Metro Detroit
    Don't freak out. There most likely isn't a shorted winding. My money is on the grounding. It's a common issue. The magnets aren't grounded. Some people have a problem hitting the poles, some don't. It never gives me a problem, so I never bother with it.

    I'm going to say it looks more like alder, to me.
  4. sucho2000


    Nov 19, 2009
    Thanks for that I should check it out!!!

    Yeah, I does not really bother me,
    I just wanted to make sure ;)

    Alder? Good...
    I prefer ash but still good enough!!!

    Thanks guys!!! :hyper:

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