Casio Ctk691 Keyboard Logo
Daniel Posted on Jan 25, 2012
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Problem with casio CTK-691 keyboard

I have a problem with my casio keyboard which involves the keys. Some of the keys seems strangely connected in pairs. When I press a key between C and F in the third octave of the keyboard (keys 25-32 from the left) while pressing down the key placed 8 keys to left of it it sounds out at its loudest sound level no matter how lightly I press it. And the note keeps going even if I lift the key as long as the other key is pressed, while any of the two is pressed pressing the other does not create any sound at all. If I press the both at the same time the problem does not occur though. Since this problem is a bit difficult to explain properly I've recorded a small demonstration of it to show you (link below). Sorry for the poor quality... http://s128.photobucket.com/albums/p176/Laitherunya/?action=view¤t=CTK-691_problem_demo.mp4 What I want to know is: Is this a problem common with this model or is it just me having this problem? Is there a way to fix it? If that's the case, can I do it my self or should I go to a professional to get it repaired?

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Reuel Teoh

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  • Casio Expert 411 Answers
  • Posted on Dec 17, 2013
Reuel Teoh
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Joined: May 22, 2008
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"can I do it my self or should I go to a professional to get it repaired"?
Get it repaired by a professional. Casio gives long warranty (5 years in Australia). Mine took weeks for Casio Service to repair. Many boards had to be changed.

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