Four white and four black keys not working

Col

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Hi guys
I got my casio ctk 601 out to play after a couple of years and found the A minus key up to the D sharp key including white keys in between now doesn't work.
Iv tried turning off and on, tried to check settings but nothing is sorting it out.
Any ideas guys
Cheers
 

Col

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And just trying it again some more keys are not working now too, top C to G including the black keys.
 
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If you are handy with a screwdriver you could open it up and give the contacts a clean and check circuit biards fir leakage from components and discolourisation.

If you are not handy with a screwdriver, bin it and buy yourself a keyboard but do wait if this is what you end up doing as something is coming from Casio in January.
 

Col

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Thanks Biggles, that's what I was thinking, as in binning it as iv had it a long time anyway and I'm not great with electronics.
 
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Hi guys
I got my casio ctk 601 out to play after a couple of years and found the A minus key up to the D sharp key including white keys in between now doesn't work.
Iv tried turning off and on, tried to check settings but nothing is sorting it out.
Any ideas guys
Cheers

The spring back function for the key is broken. There is a synth shop in Kansas that can fix it. You could fix this if
you have the initiative. There is likely some debris behind the panel too. A small hand vacuum cleaner is very helpful
when you remove the panels.
CharlieO
 

Col

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The spring back function for the key is broken. There is a synth shop in Kansas that can fix it. You could fix this if
you have the initiative. There is likely some debris behind the panel too. A small hand vacuum cleaner is very helpful
when you remove the panels.
CharlieO
Thanks CharlieO, but iv got myself a new one now, a Yamaha PSR EW 310.
So the old one is in the garage waiting to go to the tip.
 
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And just trying it again some more keys are not working now too, top C to G including the black keys.

Could be the rubber contact strip broken - I had to fix this on a CTK - strips from CASIO.
You might put the old CTK on ebay - you'll probably get cash for it as it is repairable.
 
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And just trying it again some more keys are not working now too, top C to G including the black keys.
I saw on another thread that some people turn their Keyboards Over and slapped the back near the area where the keys are that aren’t working. I couldn’t believe this would work, but I tried it on my ypg 235 and the keys begin working again.
 

Rayblewit

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I saw on another thread that some people turn their Keyboards Over and slapped the back near the area where the keys are that aren’t working. I couldn’t believe this would work, but I tried it on my ypg 235 and the keys begin working again.
A service technician would do the same and bill the client for a minimum service fee of a couple hundred bucks . . LOL 😂
 

happyrat1

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Another method recommended with larger keyboards is to stand the board on end and lightly thump it against the floor. Careful not to do this with weighted boards though. You could end up knocking loose some weights.
 

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