Search the Community

Hello, I am trying to repair a Casio CT-460 for a friend. I am equipped with an multimeter and a home made audio probe. The keyboard is making very little noise that is also buried under static. I can hear the tones play faintly when I press a key. This also applies to the 'Demo" track that plays when the demo key is pressed. I also cannot find any point on any of the boards that doesn't have a layer of static. I've probed pretty much everywhere (including places I shouldn't have) though there are placed where the tone is much louder. Specifically on the D23C module on the M5257 Board shown below. I had the idea to probe all the conductors in the Key to Board ribbon shown below, but the tones I got out of there were strange and nothing like what the speaker outputs. I've removed a speaker because I kept having to flip it with the board and that got annoying. I'll put it back on when/if the keyboard is repaired, but I didn't want the loose wires to confuse anyone. If anyone has any guesses as to what should be checked/replaced, any suggestions would be appreciated! Underside of the Full Keyboard: M4254 Board: M5257 Board:

File Name: Firmamento (Hex Layer) File Submitter: David File Submitted: 27 Oct 2013 File Category: XW-P1 It is a plain, peaceful, quiet and environmental music tone. The slider 2 has a voice to give more force to the song (by pressing the keys harder). Click here to download this file