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Casio wk 3000. Some keys stay on after release. These keys are louder than others and only play once. Turning on and off resets them but they only play one time..

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Posted on Jan 02, 2017

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SOURCE: Casio WK 1600 : Sustained keys

Remove all power sources for at least 2 minutes. That means removing the batteries and power cord completely from the K board. Then try again. If that doesn't do it, it'll be time for a service visit...accordianman

Posted on Nov 19, 2007

  • 1 Answer

SOURCE: I purchased the Casio Wk-1800 in 2000. Moved

no but can't afford to join any plan

Posted on Jun 25, 2009

  • 5603 Answers

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

  • 5603 Answers

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

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1 Answer

One key sounds louder than the others


Hi, This is very likely to be a dirty key contact.
If the loud key is not touch sensitive or by turning the touch off, if all the keys are the same volume then this points to a dirty key contact.
All the best, Chris the Fader.

Mar 08, 2014 | Casio Privia Keyboard Case

1 Answer

When I plug in stereo headphones in the casio wk 210, the sound only comes out of one ear. I didn't really care about that before, but now when I connect a line out from the piano to my computer to...


The output of the casio may only be mono, you can buy splitters to create a 2x channel output. Is there any other outputs from the casio other than headphones, usually there are red/white RCA outputs (Phono's) which would be better for connecting to your soundcard.

Hope I was of use to you, good luck.

Aug 04, 2011 | Casio WK-210 PACKAGE 76 Keys Electronic...

1 Answer

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.

Jun 14, 2011 | Casio WK-210 PACKAGE 76 Keys Electronic...

1 Answer

One of my keyboard black keys is playing louder than usual what can i do?


One of the two contacts of that key is dirty. This cause the key velocity to be read as maximum making it loud. The keyboard contacts are conductive rubber pills that press across circuit traces on a board under the keys. CLean the pills and the traces GENTLY with ONLY 99% isoprophyl alcohol and Q tips. Getting at the contacts requires a lot of careful disassembly of the keyboard to get at the contacts.

Apr 06, 2011 | Casio WK-210 PACKAGE 76 Keys Electronic...

1 Answer

I have a Casio WK-110, when I play Major chords 2 octaves below middle C, an extra note is "played". For example, when I play C-E-G together, a B "plays". What can be done about that?


Verify that one of the automatic chord modes is not active. If you find other combinations triggering other notes, download this scvhematic showing TYPICAL Casio key matrix scanning:

http://elektrotanya.com/casio_wk-1200.pdf/download.html

The matrix is shown on page 5. It could be one of the disconnect diodes has failed. These diodes shown below the matrix on page 5 prevent crossing between multiple notes held during scanning so each can be individually scanned. Not there are TWO contacts per key and this is used to sense key velocity as one closes before the other.

Jan 19, 2011 | 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

1 Answer

Does not fully poweer up


I had the same problem. You might try the keyboard on good fresh high quality batteries. If this solves the problem, buy another ac power adapter. Good luck!!

Dec 26, 2008 | Casio 76 Key Smartmedia Keyboard

2 Answers

Casio WK 1600 : Sustained keys


Remove all power sources for at least 2 minutes. That means removing the batteries and power cord completely from the K board. Then try again. If that doesn't do it, it'll be time for a service visit...accordianman

Sep 18, 2007 | Casio LK30 Note Lighted Keyboard

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