Question about Casio LK30 Note Lighted Keyboard

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Casio 1600 sustain pedal problem

I have just bought a used 1600 and found that the sustain pedal (not a Casio one) works in reverse - pedal up to get sustain and pedal down to stop it.
Could reversing the wires in the audio jack, center to shield and shield to cemter make it work correctly?
Grateful for any advice.

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  • daaq Sep 04, 2008

    Just found out it wasn't a sustain pedal but a volume one!

    So no problem now.

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Not if its like mine, its a completecircuit vs.incomplete circuit problems.

I had the exact same problem with my Casio keyboard and a Yamaha sustain pedal I bought.

I'm not an electrical genius, but I was able to get it to work by opening it up and doing a little modification. Of course I first just tried switching the white wire with the black one but that didn't change anything at all when I tried it. It turns out the Casio wants the circuit completed to sustain, and broken for no sustain, which is the opposite of what the Yamaha pedal does.

I opened it up and mine had three three flat metal strips let's call them Top, Middle and Bottom. The Middle and Bottom ones were joined together on the right side, and the Middle and Top ones were touching on the left side when the pedal was not pressed. These seperated when the pedal was pressed, thereby breaking the circuit because the wires were on the top plate and on the joined Middle/Bottom plate.

So to flip it I:
1. Unsoldered the Bottom wire
2. Cut apart the Bottom and Middle plates on the right.
3. Bent the Middle plate on the right to touch the Top plate instead and soldered those together.
4. Soldered the Bottom wire back on.

That's it! Once I figured it out, it took only a few minutes to fix.
Good luck!
Paul

Posted on Aug 15, 2009

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