Here are schematics for the Yamaha FX/FS series of organs. I’m scanning in what I have which are the schematics for the FX-3 and additional content for the FS-300/500. These schematics are applicable to: FX-3 FS-300 FS-500 FS-70 FS-50 If you have a different model than listed above this will still be useful because most […]