Grounding Neck Pup Help (4 Way Mod w/pics)

Discussion in 'Luthier's Guitar & Bass Technical Discussion' started by lazy912, Aug 13, 2008.

  1. lazy912

    lazy912 Member

    Messages:
    110
    Joined:
    Feb 19, 2008
    Location:
    Los Angeles
    I've asked this before, but didn't get a clear answer. But I have the switch now and already took apart the guitar, wouldn't hurt to ask again. I'm planning on installing the 4 way switch on my Tele. As normal, I'm curious about grounding the neck pup. I just want to be sure with what to do before I do any damage. Thanks in advance for any help.

    I have some fender vintage noiseless installed.
    [​IMG]

    Is this where I cut the lead?
    [​IMG]

    Is this where I add the extra ground lead?
    [​IMG]

    Could I possibly add it here instead of on the one shown above?
    [​IMG]

    Thanks for any helpful advice.
     
  2. RvChevron

    RvChevron Member

    Messages:
    2,467
    Joined:
    Jan 7, 2002
    Location:
    Hong Kong, China
    Looking at the pics, either location is fine because they are on the same wire/connection.
     
  3. lazy912

    lazy912 Member

    Messages:
    110
    Joined:
    Feb 19, 2008
    Location:
    Los Angeles
    Thanks for you response, but that raises another question for me. Is there any lead cutting involved at all in my case?
     
  4. Chiba

    Chiba Gold Supporting Member

    Messages:
    7,816
    Joined:
    Feb 18, 2002
    Location:
    State of Denial
    Cut the wire and run your cover ground like the red line in your picture.

    If you don't cut that wire, you're not disconnecting the pickup cover from the pickup's ground. That wire connects the cover to the pickup wiring - so both the cover and the end of the coil ground with one wire sticking out of the pickup.

    Think of it this way - you "need" 3 wires for a pickup to work right - coil hot, coil ground, and chassis ground. Since normally there's 2 grounds, why not connect them internally and just make 2 wires sticking out of the pickup? Super easy! Done.

    To do the series/parallel thing though, you need coil start, coil end, and chassis ground. Therefore, you must sever the internal connection (or in this picture, external there on the bottom of the pickup) so you can do the fancy switching, which requires both ends of the coil be available.

    Cut the wire :)

    --chiba
     
  5. lazy912

    lazy912 Member

    Messages:
    110
    Joined:
    Feb 19, 2008
    Location:
    Los Angeles
    Thanks a bunch. You answered everything that I needed to know. Plus some bonus info. Well, off to make some noise~
     
  6. lazy912

    lazy912 Member

    Messages:
    110
    Joined:
    Feb 19, 2008
    Location:
    Los Angeles
    Well, I went ahead and wired everything up, but I messed up somewhere. I have a bad case of hum. Any clues? I'll post pics tomorrow, but I think I did everything correctly...
     
  7. Chiba

    Chiba Gold Supporting Member

    Messages:
    7,816
    Joined:
    Feb 18, 2002
    Location:
    State of Denial
    Check all your connections... look for a missing ground connection.

    You may need to shield the control cavity.

    Tele pickups are noisy anyway :)

    I did this some mod with P-90 pickups, once I got it sorted out it sounds great, but it took some trial & error to get it straight!

    --chiba
     

Share This Page