Ctk-651 sustain pedal working backwards

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• 2 Answers

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Posted on Jan 02, 2017

SOURCE: Casio 1600 sustain pedal problem

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

SOURCE: bought a sustain foot pedal and it works the opposite

Yep!!! Happens all the time and only a few synths have the option of selecting the operating mode.

NOW if you can open the pedal, USUALLY the switch has both the Normally Open and Normally Closed functions that a single wire can be moved to reverse the operation.

USUALLY you will need a soldering iron to make the change.

Posted on Nov 19, 2009

SOURCE: I just got an sp-3

Make sure you are plugging it into the place for the sustain pedal. If you happen to plug it into the audio out it may kill the sound.

Posted on Sep 29, 2010

SOURCE: Casio CTK-651 keyboard wont switch on

i want to repair the casio organ ctk 651 or ctk 731

Posted on Oct 19, 2010

SOURCE: Hi, the sustain pedal has

If you caan get to the pivot point, try putting a little CRC226 on the pivot bearing and mechanism. You can get this in the electrical dept of Home Depot. About $2.70 for a can with spout. This is plastic safe. Use sparingly. Lube movement points.

Posted on Dec 22, 2010