Question about Audio Players & Recorders
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Posted on Jan 02, 2017
If you have a volt/ohm meter try checking to plug that goes into the keyboard for voltage on the DC setting. If there is none, you will have to replace the adapter. Be sure to plug the adapter into the wall when you check it or you will get no reading. If that is not the problem, then it is probably the receptacle for the DC end of the power supply. What happens is that if they get bumped the solder connector on the circuit board breaks. If you do not feel comfortable fixing this yourself, you will have to find someone who is capable. Hope this helps.
Posted on Apr 23, 2009
SOURCE: Keys on Casio keyboard pulled up
I have a Casio CT-648, which looks like a smaller version of yours. I had the same problem, and got brave and opened it up. I took off the back, which takes several screws. Once it was opened up, I saw the keyboard was fastened to the frame in sections of keys. I unscrewed the section with the raised key (I believe it was 5 screws), slid the key section toward the front of the keyboard, and was able to get the slides to re-engage with the tab below it. I now have a smooth keyboard.
Posted on May 11, 2009
Unplug for several minutes and try again.
If that doesn't work, look up the "factory reset" procedure for your particular model via google and follow that procedure. It usually involves holding certain buttons down before and during power up.
Posted on Jul 25, 2010
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