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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:

Unpacked & assembled my new PX770 today (& unwisely cutting up all the boxing to fit in the recycle bin *before* trying the keyboard, doh!). Found one bass G# (the one below C3) will get suddenly LOUD and electronic/buzzy- but still on pitch- if I play it more than once in a measure:( Now, after trying to take a video of it and playing the note a few dozen more times, it's no longer going Loud & bright, it plays normally but with a distinct clacking sound! So is this a hardward issue maybe? I bought it through Amazon, never guessing I'd have any issues bc my last Privia worked perfectly for over a decade with no issues at all. Has anyone seen/heard this before? Any fixes? Or ideas of who to contact? I'm at a loss and couldn't be more disappointed (after lugging the whole console & keyboard up a 3rd floor walk-up apt & putting it all together & destroying the shipping packaging. #feelingdumb IMG-9916.MOV

I have a new PX560M. I wanted to connect to my computer with windows 10. Can I do that?🤔 I used the USB and got buzzing from the speakers.

I noticed an issue in the built in speakers since the day i purchased PX 560. When the volume is over 50% and I play bass notes between E1 to A2 I get buzzing noise and vibration. This noise is very noticeable for E.piano sounds and Fingered bass sounds. I also got it my piece replaced and the new one also has the same problem. Can anyone let me know if this is a known issue? PS: This is not applicable when played with earphones, external speakers and usb recording