57 Classic Pickups Phase Issue

Discussion in 'Gibson SG' started by h4ck.b0x7, Sep 17, 2017.

  1. h4ck.b0x7

    h4ck.b0x7 New Member

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    My SG came with 4 conductor 57 Classics. I tore out the PCB and wired it using the 50's wiring scheme. I wired both pickups as follows:

    Black & Bare = Ground
    Green & White = Together
    Red = Hot / Volume Pot Input

    In the middle position if the volumes are set the same it is very thin and quiet compared to each pickup by themselves which seems to be a phase issue.

    Shouldn't the pickups be in-phase?!?!
     
  2. cerebral gasket

    cerebral gasket Well-Known Member

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    Can you post an image of the control cavity wiring?
     
  3. h4ck.b0x7

    h4ck.b0x7 New Member

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    Why? I explained everything that is needed....
     
  4. cerebral gasket

    cerebral gasket Well-Known Member

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    Then swap the hot and ground leads of one of the pickups if you suspect it to be a phase issue.
     
    Last edited: Sep 17, 2017
  5. h4ck.b0x7

    h4ck.b0x7 New Member

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    Everything works, the switch is fine, and I know how to fix it. I guess my main question was, are 57 classics out of phase? Seems weird.
     
  6. cerebral gasket

    cerebral gasket Well-Known Member

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    None of my SG have 57 Classics or PCB.
    Maybe check the old quick connects you removed and see if the color codes and pinouts match for both pickup connectors. That might indicate how they are wired stock from the factory.
     
    Last edited: Sep 17, 2017
  7. sazista

    sazista Active Member

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    Welcome to ETSG. When people request more info to help YOU, then maybe there is a reason they have done so. They might have more experience in the issue and can pinpoint it more quickly. Either way, glad to see that someone offered more assistance. Hope you get it figured out, it sounds annoying.
     
    LiarCity likes this.
  8. h4ck.b0x7

    h4ck.b0x7 New Member

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    I realize that. My question really wasn't about me wiring it wrong. It's not my first rodeo.

    I was wondering about the color coding of their 4 conductor.
     
  9. cerebral gasket

    cerebral gasket Well-Known Member

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    Search "quick connect out of phase" and you will find others had the same issue you are experiencing. They changed the color codes on the bridge pickup.
     
    Last edited: Sep 17, 2017
  10. h4ck.b0x7

    h4ck.b0x7 New Member

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    Thanks!!!! That was smart of them. F'n idiots!!
     
  11. h4ck.b0x7

    h4ck.b0x7 New Member

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    I swapped the Red & White and the Black & Green on the bridge pickup and all is good. For posterity the wiring is as follows:

    NECK
    =========================
    Black & Bare = Ground
    Green & White = Together
    Red = Hot / Volume Pot Input


    BRIDGE
    =========================
    Green & Bare = Ground
    Red & Black = Together
    White = Hot / Volume Pot Input
     
  12. cvansickle

    cvansickle New Member

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    I discovered the same thing when I swapped the PCB for a Stewmac harness a few months back. But when I switched the bridge 57 for a 498T, which has four conductor wiring, the original Gibson color with Red=hot applied. Why would Gibson use different schemes between normal wiring and PCB wiring?
     
  13. Madmatt

    Madmatt Active Member

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    the pcb work is more mechanized is my guess.

    Other wise, maybe a mistake at the pickup winder they just rolled with.

    Although, making green be the green wire is more in line with standard wire coding, white as hot doesnt line up with any standard I am aware of.
     
  14. a2dconverter

    a2dconverter Member

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    Here's a pic I made up that shows the stock wiring with PCB (for an SG standard anyway)

    [​IMG]

    I hope this heps

    seeya

    Joe
     
    arcticsg and Marcello like this.
  15. Marcello

    Marcello New Member

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    I used your reply and your great explaination to make a mod on my pcb. In my mod I converted such pcb to pus-pull one with split coil. Here the post. Thank you very much!
     
    Huntroll likes this.

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