I was trying to find which CPU was used for the DX7.. didn't find it, but did find that Ken Sherriff reverse engineered the sound chips: https://www.righto.com

I was trying to find which CPU was used for the DX7.. didn't find it, but did find that Ken Sherriff reverse engineered the sound chips: https://www.righto.com/2021/11/reverse-engineering-yamaha-dx7.html https://www.righto.com/2021/11/reverse-engineering-yamaha-dx... Well I found the schematics: it uses a 6805 and a 6303! http://www.midimanuals.com/manuals/yamaha/dx7/schematics/yamaha_dx7_schematics_rvgm.pdf http://www.midimanuals.com/manuals/yamaha/dx7/schematics/yam...