Bell Tone Synth Works are based in Philadelphia, USA where they repair and restore vintage synths. We covered their contender for the saddest MiniMoog and now Alison has made this video on the internal workings of the mighty Yamaha CS-80. She explains how the preset, memory and panel of the CS-80, in this video which she describes as educational rather than fun - we think it's both!
During her in-depth explanation, she shows circuit schematics as well as looking at individual ICs and their inner workings. Even for those totally unaware of electronics, it's an excellently presented and explained overview of how the CS-80 operates. You can find similar videos on their Youtube channel.
Deep look at the new generation interface