Korg Forums

Cpilot · Senior Member Joined: 05 Oct 2011 Posts: 427

If you have a reverse polarity damper pedal and set the Global mode accordingly, when you pull the damper plug, the notes will sustain indefinitely. That's the way it works if you think about it. I have a Kawai F20 dual pedal which has reverse polarity so I'm aware of this. Another problem is that in reverse polarity, the damper input does not work the same as normal polarity. If you want half damping to work you need a pedal with approximately 1000 ohms resistance. To the best of my knowledge nobody makes such a device. I had to put a 1000 ohm resistance in parallel (I made a little box for this which also acts as a cable splitter for the Kawai). Half damping now works like a charm except for EP-1. There's a bug in that half damping occurs in the wrong place. They are aware of this but have done nothing about it. I live in hopes!

Bryan

aron · Posted: Tue Apr 29, 2014 7:43 pm Post subject:

>So I take it you didn't try the test I offered?

What would your test prove? This is an intermittent problem that occurred over 3 different pedals. Your test is not any more conclusive than the multimeter test I did. I understand what your test does.

I understand what you are trying to say about this. I really do.

What you are missing is that what I am asking for is a way to shut the notes off without having to restart the machine. Once this happens there is no fix AFAIK.

I know you think that I don't know anything about how a circuit works etc... that is fine. Please visit diystompboxes.com/forum if you care to.

Wait!!!!! Your idea is great for this.... I will carry around a 1/4" plug and simply short the ground and tip on the gig and open the circuit back and forth. That will end all questions when this happens!!!!

I take back everything I said! Very Happy

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Korg Kronos, RD-88, Yamaha VL1, Deep Mind 6, Korg Kross, author of unrealBook for iPad.

aron · Posted: Tue Apr 29, 2014 7:45 pm Post subject:

Bryan,

Yes, that may be the easiest fix. I am trying to track down a pedal - no one has a Korg pedal here. Will see if I can find another type. Have to play a concert tomorrow. If it comes down to it, will use my PC3 instead.

> If you have a reverse polarity damper pedal and set the Global mode accordingly, when you pull the damper plug, the notes will sustain indefinitely. That's the way it works if you think about it.

CPilot, yes, but even when set to reverse polarity - when the unit turns on, it does not sustain. Therefore there is init code that can manage this part of the sound engine. I was hoping there was a way to reinit the engine so when I pull the pedal, it can act like it just started up.

Just called all around. No Korg type pedal here. Oh well. Time to program the PC3 a bit more.

Thanks,

Aron
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Korg Kronos, RD-88, Yamaha VL1, Deep Mind 6, Korg Kross, author of unrealBook for iPad.

ronnfigg · Posted: Tue Apr 29, 2014 8:17 pm Post subject:

aron · Posted: Tue Apr 29, 2014 8:56 pm Post subject:

I actually do think your idea is great. It will prove once and for all if it's the pedal (which as I said it could be). I am tracking down a Korg pedal now.
I am still bothered by the fact that this could happen to anyone that uses a Yamaha type pedal which they probably shouldn't considering what can happen.

I have no problem with purchasing a Korg pedal if it will fix things. Tracking one down is interesting. Probably will order away. It's not a problem for Thursday. Just had to reprogram a few sounds in the PC3. It's good to go.
Thanks!

p.s. I'm going to carry around a 1/4" shorted plug. If this ever happens I will be able to test this problem immediately.
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Korg Kronos, RD-88, Yamaha VL1, Deep Mind 6, Korg Kross, author of unrealBook for iPad.

LZ · Posted: Tue Apr 29, 2014 10:59 pm Post subject:

As I mentioned before, the Roland DP-2 pedal has worked fine for me as well (2 of them). If they don't cost too much, it may not hurt to pick up another brand of pedal, even if it's not Korg (though as I said, I had trouble with M-Audio as well).
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HardSync · Platinum Member Joined: 07 Jan 2011 Posts: 794

aron · Posted: Wed Apr 30, 2014 12:57 am Post subject:

Yes, sorry I am not making myself clear (not the first time!).
Is there a way to shut off the notes and be able to continue using the keyboard.

Yes, there are ways to shut off the sound (thanks for the compare) but you cannot use the keyboard after that. The notes just sustain and are stuck.

I've been trying to shut off the sound. I'm not sure if there's a way without turning the unit off.
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Korg Kronos, RD-88, Yamaha VL1, Deep Mind 6, Korg Kross, author of unrealBook for iPad.

ronnfigg · Posted: Wed Apr 30, 2014 1:17 am Post subject:

Sorry- one more question. does this problem occur for any Program or Combi?
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"To me the synthesizer was always a source of new sounds that musicians could use to expand the range of possibilities for making music."
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aron · Posted: Wed Apr 30, 2014 1:46 am Post subject:

OK you guys. I hope you never have to go through what I went through on 2 gigs. Here is a band aid fix.

Load the following .mid into your Kronos. It will generate all notes off and give you a fighting chance to continue playing. Right now it takes 4 secs to shut off the notes, but it's better than 2 1/2 minutes!!!!!

http://www.aronnelson.com/kronos/alloff.mid

I loaded the MIDI file, upped the tempo (set the tempo to manual), then saved the song. (This decreased the time to a couple of seconds now) At least I don't ever have to turn the machine off now if I ever have a bad pedal or ????

So if you have this extremely unfortunate event happen to you. Pull the pedal, play the sequence and keep playing.
(I guess that's why some keyboards have panic features - very useful for real world problems)

Hey, thanks for all of the help and suggestions. Will get a Korg pedal and hopefully this won't happen again. As I have a way to get out of the problem without having to restart - I consider this matter closed. Thanks!
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Korg Kronos, RD-88, Yamaha VL1, Deep Mind 6, Korg Kross, author of unrealBook for iPad.

Cpilot · Senior Member Joined: 05 Oct 2011 Posts: 427

Just a thought. Maybe you have an intermittent socket. The sockets on mine appeared to be slightly oxidised so I put some Deoxit on a plug and pushed it in and out a few times. That fixed it. Did the same to all the sockets just in case and haven't had any trouble since.

Bryan

aron · Posted: Wed Apr 30, 2014 8:36 pm Post subject:

Thanks Bryan. Yep, anything is possible.
Hey BTW check out LPS 1 - the spray can. A long time ago I did a bunch of tests with deoxit, cramolin etc... on 2 Sequential Pro Ones that I have.
Deoxit/cramolin lasted about 3 months. LPS 1 kept going for about a year or more. Since then I have been using this on pots, jacks, j-wires. It works really well and I have never had any problems using it.
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Korg Kronos, RD-88, Yamaha VL1, Deep Mind 6, Korg Kross, author of unrealBook for iPad.

Danextgen · Junior Member Joined: 22 Jun 2006 Posts: 85

Im having this same issue with a model 1 kronos.

Also, when i put the pedal, the sounds gain a bit extra release, without me touching the pedal. When i take it off they loose the extra release.

Is there any conclusion for a resolution after all these years?

Thanks
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