Strap Blocks
Results 1 to 3 of 3

Thread: Wiring/Grounding question about "that metal thingy" inside the cavity.

  1. #1

    User Info Menu

    Wiring/Grounding question about "that metal thingy" inside the cavity.


    I have an Axis. There is a piece of metal screwed to the wood inside the control cavity which looks like it is used as a ground connection.

    This seems like a good idea that I could potentially use on my other guitars when I'm messing around changing components. My question is if anyone here can explain how it works/how it should be wired so that I don't create a problem/loop. My guitars have typically employed the back of the volume pot as ground.

    I'm in the process of completely rewiring a Pacifica with 1 volume 1 tone, HSS pickups.

    Would this work?
    - screw piece of metal to inside of control cavity
    - attach ground wires from bridge, jack and both pots to the metal piece instead of to volume pot

    If so, would I still have to bend the third "eye" back on the volume pot to create a ground there?
    Also, does it matter what kind of metal I use for the ground?


  2. #2

    User Info Menu

    The control cavity is shielded with conductive paint (which is under the color coat). That metal washer screwed into the wood provides the connection to ground for the shielding (without which it wouldn't work).

    Honestly, with or without shielding paint, there is not reason why you could not use a similar idea to ground the pickups to, but I think the back of the volume pots are better to connect to. It's often more convenient, less wires heading in different directions, which means less chance of accidental breakage poking around in there, especially if a pickguard is involved, and we know the volume pot takes solder easily and well, which some metal washers may not. And yes, lug 3 of the volume pot must be connected to ground or the volume control will not function correctly. As the back of the pot must also be connected to ground, bending the lug over and soldering it is the easiest thing to do.
    Last edited by DrKev; 06-22-2020 at 08:38 AM.
    Forum Moderator, Guitar Teacher and Guitar Tech, Folder of Underpants, Stubber of Toes.
    Irish/American in Paris

    Silhouette Special (2005 Buttercream Limited Edition)
    Cutlass HSS (2018 Roasted Special, Ivory White)

    Click here for my Music Man photo albums

    Ernie Ball Customer Service
    Music Man Customer Service

  3. #3

    User Info Menu

    Very interesting.

    Merci DrKev

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Ernie Ball Forums