What wiring error would make the bridge position of 3 way switch activate 2 pickups?

Discussion in 'Tech-Talk' started by nickmsmith, Oct 9, 2020.

  1. nickmsmith

    nickmsmith Dr. Stratster

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    Got one of my Teles back from my wiring guy (who has had some health issues as of late) and I'd like to fix this myself, if I can. I don't want to really bother him, or have to spend time dropping it off, picking it up, etc.

    Looks like the bridge position on the switch is activating both pickups. Middle position is doing the same (what it's supposed to do) Do you know what error can cause this?
     
  2. Guitarmageddon

    Guitarmageddon Dr. Stratster

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    Poor soldering job, wires touching, 3-way switch contacts touching the body shielding paint, etc....you'd have to show us a photo of his actual wiring job for us to diagnose.....
     
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  3. Nick L Plate

    Nick L Plate Strat-Talk Member

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    Yup. Without pics, it's multiple-guess.
     
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  4. nickmsmith

    nickmsmith Dr. Stratster

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    Thanks. I'll see if I can figure it out from this info after work today. If no luck, I'll post photos. I imagine it's something simple.
     
  5. Mr. Lumbergh

    Mr. Lumbergh needs you to go ahead and come in on Sunday, too.

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    Something making contact at the switch that shouldn't is the most likely, but first things first: can you confirm that both are indeed on when bridge is selected, or is it just that you're not hearing a change in sound? Quickest way to tell is tap the neck pickup gently with a small screwdriver while plugged in, that'll make sure you're only hearing the one you're supposed to, and move the switch. You should hear no tapping at all when set to B, tapping in M, and a little less bright and slightly louder tapping on N; let us know what you find.
    What about the tone control, does that vary the mount of neck coming through when the bridge only is selected?
     
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  6. nickmsmith

    nickmsmith Dr. Stratster

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    tapping definitely shows that the N is on in bridge position, and the tone knob seems to work normally in all positions.
     
  7. Mr. Lumbergh

    Mr. Lumbergh needs you to go ahead and come in on Sunday, too.

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    OK. Send us a pic when you get a chance, sounds like something is up at the switch. Misplaced jumper or something else making contact that shouldn't.
     
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  8. nickmsmith

    nickmsmith Dr. Stratster

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    Thanks! Will do. It's about time I start learning this stuff myself. I'm good at most else, but wiring/soldering, still amateur. especially with switch wiring.
    Luckily Teles are simpler and easier to access the electronics.
     
  9. nickmsmith

    nickmsmith Dr. Stratster

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  10. Guitarmageddon

    Guitarmageddon Dr. Stratster

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    Am I seeing this right when I think I see that the white neck pickup wire is soldered to the same lug as those blue jumper wires? They shouldn't be together at all....

    Hard to tell, but see this diagram

    [​IMG]
     
  11. Mr. Lumbergh

    Mr. Lumbergh needs you to go ahead and come in on Sunday, too.

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    This looks like the thing, yes.
     
  12. nickmsmith

    nickmsmith Dr. Stratster

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    Looking at the diagrams, it looks wired correctly, I closed it back up, and the switch seems to be working right now. Something must have been touching when it got closed up.

    but now, the guitar seems dull, like the tone pot is at 4-5 at all times. One issue to another.
     
  13. Stevn

    Stevn Strat-Talker

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    Both pick up “hot” center wires touching some where. Like the Pickup switch.
     
  14. Collin D Plonker

    Collin D Plonker Strat-Talker

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    Whenever I have issues like that I look for bits of wire that didn't make it through the hole and long stretches of bare wire. They could touch the wrong lug or short to ground, especially if your cavity is shielded. I would address that, and if the weak signal continues, rewire it.
     
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  15. Mr. Lumbergh

    Mr. Lumbergh needs you to go ahead and come in on Sunday, too.

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    Make sure the legs of the pots aren't touching the cavity shielding.
     
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