I certainly am not him, but I had a floppy drive go bad on my KN5000. I sent it to a team that was trying to clone it. The report from them was that uses a very complex reading algorithm, which they could not fix. I was hoping a generic would work. No such luck. I sold it as is.
Bernie
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pa4X 76 ,SX900, Audya 76,Yamaha S970 , vArranger, Hammond SK1, Ketron SD40, Centerpoint Space Station, Bose compact