Hi all
Last night , I played with a melodica, on top of my SD1
( http://www.yamahamusical.com.br/index.php?pagina=produto&id=297 )

I think there is a little saliva runs on the SD1 Keys. And now the key D1 is not working !

if I play the key at max velocity, the sound is maximum, if not the sound is 0

How I can repair this? (I think it's a thing about cleen contacts?)