Broken Keys

[hbmiller07]

Hi. I have a Roland RD-300s digital piano. Some of the keys on it don't work like the others. Some keys when tapped multiple times, it only plays once. My question is this. How can I switch the broken keys out with better working keys from a higher octave? Thanks for reading. Peace.

Brehnan

 

[davesch]

I'm not familiar with this model. Are they individual switches or built into the circuit board with a conductive material on the end of the key bridging the pcb as is the case on many cheaper keyboards ? If the latter it may be a case of cleaning the pcb