Hello all. I have a Yamaha electone mc600 organ, I want to mod it so I can play guitar effect pedals with it and via its internal speakers not external ones I I also want to connect them so the drum machine aspect of the organ is not effect by the guitar effect pedals. I have attached a link to the service manual which has block/schematics Diagrams. Any help/advice is deeply appreciated. Thank you all, enjoy
https://m.box.com/shared_item/https://app.box.com/s/k82zc7xq4233mk354ljt
https://m.box.com/shared_item/https://app.box.com/s/k82zc7xq4233mk354ljt