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Thread: Is there a problem with this diagram?

  1. #21
    Mojo's Minions misterwhizzy's Avatar
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    Default Re: Is there a problem with this diagram?

    Not a problem so much as an omission. I went recently to look up the diagram for Blackouts in my one volume one tone PRS SE, and I couldn't find one for it. When I select 2 Blackouts, one in the neck, and one in the bridge, the only option is for a single volume knob only.

  2. #22
    Super Toneologist Jack_TriPpEr's Avatar
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    Default Re: Is there a problem with this diagram?

    Quote Originally Posted by misterwhizzy View Post
    Not a problem so much as an omission. I went recently to look up the diagram for Blackouts in my one volume one tone PRS SE, and I couldn't find one for it. When I select 2 Blackouts, one in the neck, and one in the bridge, the only option is for a single volume knob only.
    You're probably all-set in this regard, but I am posting this here for anyone else who runs into this in the future. It's how to add a Master Tone control to a Master Volume control.

    Click image for larger version. 

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    Quote Originally Posted by GuitarDoc View Post
    Good diagram Shadowfire90, but it isn't what the OP wants.

  3. #23
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    Default Re: Is there a problem with this diagram?

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    -Seymour duncan 7 string sentient and pegasus pickups
    -3 way toggle
    -CTS 500k volume
    -CTS 500k tone mini pot (fitment issues)
    -Schecter 7 string guitar
    wired exactly like this diagram.

    PROBLEM: Both pots are working as volume and both have to be turned up for either pickup to work. Neither works as a tone pot. I don't understand what I am doing wrong. Please help.

  4. #24
    Administrator Mincer's Avatar
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    Default Re: Is there a problem with this diagram?

    Quote Originally Posted by JorgeB View Post
    Click image for larger version. 

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    -Seymour duncan 7 string sentient and pegasus pickups
    -3 way toggle
    -CTS 500k volume
    -CTS 500k tone mini pot (fitment issues)
    -Schecter 7 string guitar
    wired exactly like this diagram.

    PROBLEM: Both pots are working as volume and both have to be turned up for either pickup to work. Neither works as a tone pot. I don't understand what I am doing wrong. Please help.
    Welcome to the forum!
    Can you make your own thread and post pics of your wiring? This thread is for definite issues with a diagram that needs to be corrected. This diagram looks good, so we need to see your wiring...just make your own thread.
    Dave, Ambassador/Writer/Artist for Seymour Duncan

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    Gear pics and more on my Instagram.

  5. #25
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    Default Re: Is there a problem with this diagram?

    I will. Thank you very much for the guidance.

  6. #26
    Super Toneologist Jack_TriPpEr's Avatar
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    Default Re: Is there a problem with this diagram?

    The first attachment is a wiring diagram with an error. The second attachment is a version i created that correxts for that errorm

    The URL that hosts the current version of the drawing is here:
    https://www.seymourduncan.com/resour...iring-diagrams

    The push-pull for the Master Series / Parallel switch is missing wire connections in the "up"position of the switch. There a couple ways to wire a Master Series Parallel switch, and the one I have implemented here, provides the benefit of not having to have the 3 way pickup selector switch set to a particular position in order to avoid a cutout in all output when the Master Series Parallel switch is set to "In Series" (which is the Up position of the switch). An alternate approach of adding a jumper wire to the original diagram, (from the top left side of the MSP switch to the top right side of the switch) would work but has the downside that there will be no output from the guitar when the 3 way pickup selector switch is in Position 3.

    UPDATE: It was later spotted that additionally the original drawing is also missing a ground wire connection between the tone pot and volume pot. Without that ground wire connection, noise will be present/audible in the output signal. The drawing with corrections for the other errors, also needs to have that missing ground wire added to it.

    Version that has the error:
    Click image for larger version. 

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    Version with a correction:
    Click image for larger version. 

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    Last edited by Jack_TriPpEr; 06-18-2020 at 07:38 PM.
    Quote Originally Posted by GuitarDoc View Post
    Good diagram Shadowfire90, but it isn't what the OP wants.

  7. #27
    Slutbucker Pimpologist ArtieToo's Avatar
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    Default Re: Is there a problem with this diagram?

    Quote Originally Posted by JorgeB View Post
    PROBLEM: Both pots are working as volume and both have to be turned up for either pickup to work. Neither works as a tone pot. I don't understand what I am doing wrong. Please help.
    Just a quickie, since you brought this up: check to see if you acciedently used an 0.x cap instead of a 0.0x cap.

    Looks like Jack is on top of this, but I'll double-check the couple that I've been asked about.

  8. #28
    Slutbucker Pimpologist ArtieToo's Avatar
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    Default Re: Is there a problem with this diagram?

    The diagram "Jazz Bass with STC-2P or STC-3P" is missing two jumpers on the concentric bass/treble control. (Red jumpers in blue circle.)

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  9. #29
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    Default Re: Is there a problem with this diagram?

    This is a post to thank everyone for contributing.
    Dave, Ambassador/Writer/Artist for Seymour Duncan

    My Guitar, Gear, and Music Webpage

    Gear pics and more on my Instagram.

  10. #30
    Slutbucker Pimpologist ArtieToo's Avatar
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    Default Re: Is there a problem with this diagram?

    Hey Dave: Do you know if they're going to bring back the downloadable PDF version of these diagrams? Those were a handy resource.

  11. #31
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    Default Re: Is there a problem with this diagram?

    Quote Originally Posted by ArtieToo View Post
    Hey Dave: Do you know if they're going to bring back the downloadable PDF version of these diagrams? Those were a handy resource.
    I did make them aware of this thread, but that is a great idea. I have no idea why they are jpgs.
    Dave, Ambassador/Writer/Artist for Seymour Duncan

    My Guitar, Gear, and Music Webpage

    Gear pics and more on my Instagram.

  12. #32
    Slutbucker Pimpologist ArtieToo's Avatar
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    Default Re: Is there a problem with this diagram?

    They should already have them in their archive. Unless someone hit the "delete" button by mistake.

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