PC88 Pedal Issue

Discussion in 'Kurzweil Keyboards' started by Joshua Light, Aug 1, 2016.

  1. Joshua Light

    Joshua Light

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    Hello,

    I am having trouble with my Kurzweil pc88. When the sustain pedal is plugged in (pedal 1 jack), nothing happens. No sustaining at all. If I unplug it and have no pedal plugged in at all, then the keyboard completely sustains everything all the time. If you plug the pedal back in without cycling the power, it goes back off. I have tried a hard reset with no success.

    I am guessing this must be a problem with the keyboard itself as the pedal works on another keyboard.

    Any suggestions or ideas about this?

    Thanks in advance!
     
    Joshua Light, Aug 1, 2016
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  2. Joshua Light

    delaware dave

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    Sounds as though the pedal is not compatible ( open vs. closed polarity issue).
    http://www.haydockmusic.com/reviews/sustain_pedal_polarity.html#.V5_cA8spBJ8

    Try holding the pedal down and powering up the keyboard, holding it down during the full powerup cycle and see if it works normally. If so then you need a compatible sustain pedal. What type of sustain pedal is it? Is the end plug a TS (tip/sleeve) or a TRS (tip/ring/sleeve)? The PC88 needs a TS plug end for sustain along with a pedal that has the correct polarity.

    TS plug end:
    https://www.google.com/search?q=ts plug pictures&oq=TS plug pic&aqs=chrome.1.69i57j33.6710j0j4&sourceid=chrome-mobile&ie=UTF-8#imgrc=lfn39XQ1_bbqjM:

    TRS plug end:
    http://www.alliedelec.com/search/productview.aspx?SKU=70088578
     
    Last edited: Aug 2, 2016
    delaware dave, Aug 2, 2016
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