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Volume pot still passing signal when turned all the way down

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  • Volume pot still passing signal when turned all the way down

    I replaced the wiring and pots in one of my guitars a few weeks ago. Everything has worked fine and sounded good up until today. When I roll the volume down it still passes about 3/4 of the signal even when all
    the way off. It also sounds like I have rolled my tone knob down at the same time.
    when in roll the volume back up it does not change at all until I get to around 8-9. I have checked all of my connections to see if anything came loose but they are still solid.

  • #2
    Is this a new or used pot? If used replace it. If it is used sounds like the resistive material may be shot or worn.

    Comment


    • #3
      It’s a new mojo vintage taper pot.

      Comment


      • #4
        I think you forgot to ground the volume third lug and/or connect it's back casing to ground.

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        • #5
          Originally posted by beaubrummels View Post
          I think you forgot to ground the volume third lug and/or connect it's back casing to ground.
          This. You've lost the ground.

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          • #6
            Everything feels solid as far as grounds. It has worked fine for almost 2 weeks. I’m going to resolder everything to make sure nothing came loose.
            Last edited by man-in-moon; 12-03-2020, 09:35 AM.

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            • #7
              Try retouching the ground connections, could be a flaky cold solder joint.

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              • #8
                Originally posted by ArtieToo View Post

                This. You've lost the ground.
                Ground
                that's just how it works when the ground is missing
                Becomes a tone pot

                I bought a Squire from MF tha was "broken" with exactly that problem listed

                It was the ground


                To be clear
                The ground on the volume pot itself was not connected

                If any others were loose
                That function would fail

                But the volume fail is the ground on the volume pot is bad
                EHD
                Just here surfing Guitar Pron
                RG2EX1 w/ SD hot-rodded pickups / RG4EXFM1 w/ Carvin S22j/b + FVN middle
                SR500 / Martin 000CE-1/Epiphone Hummingbird
                Epiphone Florentine with OEM Probuckers
                Ehdwuld branded Blue semi hollow custom with JB/Jazz
                Reptile Green Gibson Custom Studio / Aqua Dean Shire semi hollow with piezo
                Carvin Belair / Laney GC80A Acoustic Amp (a gift from Guitar Player Mag)
                GNX3000 (yea I'm a modeler)

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                • #9
                  I went back and redid the grounds it still didn’t work. So I pulled that pot and replaced it with another one. Everything works fine now. I noticed the taper on the new pot is smoother than the other one. It was almost like the shaft on the old one was a little loose.

                  Comment


                  • #10
                    wafer may have be detached

                    peel those tabs back and lets see

                    I am curious as I have never seen this before

                    do you think it may have overheated when attaching the grounds?
                    Last edited by ehdwuld; 12-04-2020, 06:13 AM.
                    EHD
                    Just here surfing Guitar Pron
                    RG2EX1 w/ SD hot-rodded pickups / RG4EXFM1 w/ Carvin S22j/b + FVN middle
                    SR500 / Martin 000CE-1/Epiphone Hummingbird
                    Epiphone Florentine with OEM Probuckers
                    Ehdwuld branded Blue semi hollow custom with JB/Jazz
                    Reptile Green Gibson Custom Studio / Aqua Dean Shire semi hollow with piezo
                    Carvin Belair / Laney GC80A Acoustic Amp (a gift from Guitar Player Mag)
                    GNX3000 (yea I'm a modeler)

                    Comment


                    • #11
                      Originally posted by ehdwuld View Post
                      wafer may have be detached

                      peel those tabs back and lets see

                      I am curious as I have never seen this before

                      do you think it may have overheated when attaching the grounds?
                      I’ve done that a few times in the past. If you get the case too hot, you can melt the plastic that rides against the inside of the case and it’ll feel loose and gritty.

                      Comment

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