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Help on wiring a jazz bass

Discussion in 'Basses [BG]' started by Shannow85, Jul 27, 2018.

  1. Shannow85


    Jul 11, 2018

    I need some help on a second hand jazz bass I just got. The previous owner didn't warn me that the electronics were not original.
    I knew it had Dimarzio J 123 pickups but I was surprise to discover that I didn't have tone/volume bridge/volume neck but instead I have Tone/Blend/Volume.
    It's got two 250k for the tone and the only volume dial and a double pot for the blend.
    the Volume and Tone work ok to me and the blend works as well although I get a bit more volume with one pickup than with both on. I am baffled to see that only the bridge seems to be connected to the mass and nothing else (!?). edit : ok I just understood the metal plate is used as a mass bridge to the pots.
    The Dimarzio Pickups have the black/white soldered together to nothing and the red and green wires seems to be used which appears to be ok.
    I bought Vmod pickups and I am worried that I can't just replace the Dimarzio without altering anything else.
    Could someone share some light ? I took a picture of it.



    Last edited: Jul 27, 2018
  2. The jack is electrically connected to the controls plate, the pots are electrically connected to the controls plate, & the pickups' neutral wires are connected to the pots. That's how it's working.
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