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Marshall Stereo Jackplate...Which posts are (+)?

Discussion in 'Amps and Cabs' started by ripley156, Mar 3, 2012.

  1. ripley156

    ripley156 Supporting Member

    Messages:
    395
    Joined:
    Jul 24, 2005
    Location:
    NE Wisconsin
    Hello...

    I have a Marshall 425A cab with the switchable stereo/mono jack plate...

    Can anyone tell me which posts on the jack plate are (+)?

    (Maybe call the posts "1", "2" ,"3" and "4", from the left to the right in the pic?)

    I am not sure how to tell and I have the feeling it was wired wrong because it sounded kinda funky...The one picture I found on the internet was different from how mine was wired

    [​IMG]

    Thanks,

    Dan
     
  2. zzmoore

    zzmoore Member

    Messages:
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    Joined:
    Sep 22, 2006
    Location:
    USA, California, 94585
    Hard to tell from the pic/flash, but just follow the traces.
    The jack contacts nearest the plate are the shaft -
    The jack contacts furthest from the plate are the tip +
    Follow those to the four posts. From left to right it looks like - + - +
    But verify for yourself.
    Do you have a meter.?
    Best
     
  3. ripley156

    ripley156 Supporting Member

    Messages:
    395
    Joined:
    Jul 24, 2005
    Location:
    NE Wisconsin
    Thank you ZZ...

    So with the solder points on the furthest left being #1 and the ones on the furthest right being #4, negative is posts #1 and #3?

    [​IMG]

    Thanks again!

    Dan
     
  4. zzmoore

    zzmoore Member

    Messages:
    6,816
    Joined:
    Sep 22, 2006
    Location:
    USA, California, 94585
    That is how I see it. If you do not have a meter, just insert a cable.
    You will see where the tip (+) connects
    and where the shaft (-) connects.
    Best
     

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