RustySkull

21 hours ago, tnicoson said:

Good luck with your endeavors to repair your WK-3700.  I am sure it will be well worth it.

 

Regards,

 

Ted

 

Ahh I see, well thanks for your help Ted, I'm having real trouble finding a place that sells the strips but I'm sure I can come across some soon ;D

Rusty.

20 hours ago, tnicoson said:

Rusty

 

Under the keys are dimpled rubber strips.  Each strip typically provides a dimple under each key for one octave.  Inside each dimple is a carbonized disk or a peg, the bottom end of which has been carbonized.  When a key is pressed, the dimple is compressed until the carbonized disk or peg shorts together a set of electrical contacts on the circuit board under the rubber strip and turns on the tone oscillator for that key.  See the photos at:

 

http://www.bing.com/images/search?q=casio+keyboard+key+contact+repair+strips&qpvt=casio+keyboard+key+contact+repair+strips&qpvt=casio+keyboard+key+contact+repair+strips&qpvt=casio+keyboard+key+contact+repair+strips&FORM=IGRE

 

With age, the rubber strips begin to deteriorate and lose their resiliency, allowing the dimple to stay compressed and the tone to stay "on", even after the key is released.  Quite often, the afflicted key(s) will be a little lower than the surrounding non-afflicted keys when sighting the length of the keybed.  In the early stages of this condition, the collapsed dimples will sometimes return to their normal positions after a few hours or overnight, making it appear that the problem has gone away, but it soon returns after a few presses of the afflicted key(s).  When a key fails to produce a tone, that is normally an indication of dirty electrical contacts under the dimples.  This situation can usually be eliminated by removing the rubber strips, cleaning the contacts, and re-assembling everything, but once the rubber strips begin to deteriorate, about the only fix is to replace them.  This can be done by the user/owner, but it is quite involved mechanically, and is not for the technically faint of heart.  In those cases, it is best to send the keyboard to a repair center or just to retire it.  With the age of your WK-3700, a repair center repair would almost certainly exceed the worth of the keyboard, but I will offer this word of caution, depending upon your particular situation and relationship with the WK-3700.  Many former WK-3X00 owners sold their boards to help finance the cost of the newer models, and are now sorry for it, as there are several popular features of the older models that were not carried over into the newer units - popular tones, popular rhythms, ability to load and play tone and drum samples, etc.  Personally, I still depend on my 10 year old WK-3800 enough that, if it were to develop this condition, I would go to the trouble to repair it or to the expense of having it repaired if at all possible.  If you decide to repair your WK-3700, try a Bing or Google search on "Casio keyboard key contact repair strips" for more information.

 

Hey tnicoson!!

Many thanks for your detailed reply!

I know a little about how the keys work and I've come across many things with the same rubber dimple and contact design for buttons in the past, luckily I rather enjoy fixing broken electrical items so now you've confirmed my original suspicions that it is a physical issue and not a setting I'll be fixing it myself. 

The thing is loads of people had told me it's a setting that you can adjust but what setting appeared to be unknown! Which is why I came to this forum thinking one of you is bound to know how to unset it lol. I don't mind having to take it apart because while I'm at it I'll replace all of the rubber's because I know from other things that they do perish. It's a similar design in the older iPhone's for the home button, I have fixed many of those in the past haha. 

Anyway thanks again!

P.S one question if you don't mind please? How old are the WK-3700's? There is a date on the box of 2005 is that right? What would you say they're worth now? I paid £50 for mine boxed too and to tell you the truth I thought I over paid :/

-Rusty.

Hey everyone, I'm new to this forum but also new to Casio Keyboards!

I have bought a WK-3700 but shortly after playing it for the first time some of the keys became "Stuck" the actual keys don't physically get stuck down but once pressed they don't play again and on the display they're shown as still being pressed? If you change piano type they reset but the same happens again. This must be a setting issue?

Things I've done to try and fix it:

Reset the System (no luck)

Reset Parameters (No luck)

Played with every setting in the manual (Still no luck) ...

I should point out that the other keys are set to pressure setting 3 so the volume is according to the amount of pressure applied but the four troublesome keys are not pressure sensitive.

I know I'm new and this is my first post but can any of you lot help me with this problem please? The really annoying thing is the keys they are playing up are the ones I need!

Thanks in advance

-Rusty.