My name is Guillermo and I'm from Argentina.
I was glad to recieve as a gift a Roland Piano model RK-570.
The problem now is that I cannot ise it because of it's anoying noise/interference.
It is very clean inside.
Here you can see a very short video showing the noise.
I also attach a picture showing 3 capacitors. I do not know if the white product is glue or if they are damaged.