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Fixing stuck keys on casio wk 200

Some keys stick,other's are "dead keys' that don't sound when pressed

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  • 14 Answers

Sounds like either the contacts are dirty or worn out. Solution clean / replace.

Posted on Jan 08, 2013

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Posted on Jan 02, 2017

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SOURCE: I fixed the dead keys on my Casio WK-200 keyboard. Now some...

Most of these have VELOCITY sensing and that involves two contacts per note. If the velocity sense on those notes is somehow not working, broken wire or trace on the board or short that MIGHT cause your problem.

Posted on Aug 24, 2009

  • 5603 Answers

SOURCE: My WK- 3700 Casio keyboard is malfunctioning.

One portion of the key scanning matrix has gone bad. First thing is to clean the contacts with 99% isoprophyl alcohol. These USUALLY consist of traces on a circuit board that conductive rubber "pills" under silicone rubber domes are pressed down. Each note usually has two contacts, one closes before the other. This creates "velocity" measurement for the key. IF ONE of the contacts for a key doesn't work, the velocity can detect that the note has actuated, but no release occurs.

This would be on the "STROBE" line for either the first or second contact for THE OCTAVE you have problem with. There are disconnect diodes that prevent sneak paths.

You could have one bad diode, a crack in the circuit board, or a bad connection to the keyswitch board.

Posted on Nov 27, 2009

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SOURCE: I have a casio wk-200 piano. I bought headphones

The keyboard has a mic jack that is the same size as the headphones. You probably put the headphone plug into the wrong jack is all.

Posted on Jan 10, 2010

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SOURCE: Casio wk-3800 keys are malfunctioning, also the

This is likely a problem in the scanning matrix of the keys and switches. Other than opening the unit and looking for contamination like a metal shard or a loose cable, it is unlikley you will be ablle to repair the unit yourself. There could easily be a metal part shorting something that is causing the problem, but it could also be a bad IC someplace in the circuitry or even a cracked circuit board.

Posted on May 14, 2010

  • 13 Answers

SOURCE: Re: Casio WK-210. Audacity, Jet Audio and Ctrl

Pat, the USB output on the Casio WK-210 is only capable of sending and receiving MIDI information. It's not sending any digital or analog audio. Audacity is primarily for sound file editing.

In order to use the keyboard to record onto your computer you can connect an audio cable from the 1/8" stereo mini-jack to an input on your computer. Then you can record into Audacity.

Or you can acquire MIDI recording software (ie. Logic, Cubase) and then using the USB output on the keyboard, you can control and record multiple MIDI instruments in those programs.

Posted on Mar 01, 2011

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1 Answer

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Hope I was of use to you, good luck.

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Make sure you use ONLY the correct adapter for power. Too small an adapter might cause it to light up but will not operate the unit. The correct adapter should say AD12 on it. It is a 2 volt, center pin minus, and probably 1 or 2 amps capability. Nine volt adapters used with pedals or universal adapters will NOT work with the WK3000.

Jun 26, 2011 | Music

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Hi, i have a problem with my casio wk 210 keyboard. when i push a key then the note keeps playing and doesn't stop. i have tried turning off the power and turning off reverb and none of them fix the...


It sounds like the sustain is stuck on as if a sustain pedal is active. You don't mention if you have one, however if you MIGHT have one and you have used a Roland pedal, that brand is reverse sensed and would cause note to remain on.

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Re: Casio WK-210. Audacity, Jet Audio and Ctrl Pnl allow me to choose a USB PnP "record from" option, however, no sound is being recorded from the Casio to the PC. What am I doing wrong. Many...


Pat, the USB output on the Casio WK-210 is only capable of sending and receiving MIDI information. It's not sending any digital or analog audio. Audacity is primarily for sound file editing.

In order to use the keyboard to record onto your computer you can connect an audio cable from the 1/8" stereo mini-jack to an input on your computer. Then you can record into Audacity.

Or you can acquire MIDI recording software (ie. Logic, Cubase) and then using the USB output on the keyboard, you can control and record multiple MIDI instruments in those programs.

Feb 23, 2011 | Casio WK-210 PACKAGE 76 Keys Electronic...

1 Answer

I have a casio wk-200 piano. I bought headphones


The keyboard has a mic jack that is the same size as the headphones. You probably put the headphone plug into the wrong jack is all.

Jan 10, 2010 | Casio Music

1 Answer

My WK- 3700 Casio keyboard is malfunctioning.


One portion of the key scanning matrix has gone bad. First thing is to clean the contacts with 99% isoprophyl alcohol. These USUALLY consist of traces on a circuit board that conductive rubber "pills" under silicone rubber domes are pressed down. Each note usually has two contacts, one closes before the other. This creates "velocity" measurement for the key. IF ONE of the contacts for a key doesn't work, the velocity can detect that the note has actuated, but no release occurs.

This would be on the "STROBE" line for either the first or second contact for THE OCTAVE you have problem with. There are disconnect diodes that prevent sneak paths.

You could have one bad diode, a crack in the circuit board, or a bad connection to the keyswitch board.

Nov 21, 2009 | Casio Music

1 Answer

I fixed the dead keys on my Casio WK-200 keyboard. Now some...


Most of these have VELOCITY sensing and that involves two contacts per note. If the velocity sense on those notes is somehow not working, broken wire or trace on the board or short that MIGHT cause your problem.

Aug 12, 2009 | Casio Music

2 Answers

SMF converter for wk-500, Does it exist?


No.

I have a Wk-8000 & a CDP-200R, the later is the same as wk-500 but with 88 weighted hammer keys.

Since wk-500 can play SMF (Midi 0 & 1) format directly from a SD card and there is enough polyphony to play anything, I don't find any real reason to convert SMF to any "Casio Format". Just get a 2GB SD card and put your SMF files in the MUSDAT folder for the SD CARD using your PC/MAC.

Dec 31, 2008 | Casio Lighted Keyboard LK90STADMC

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