Be sure to add me to your favorites list Yamaha Tyros Digital Workstation Overall Circuit Diagram / Schematics Sheets, in their cover. Also covers TRS-MS01 Monitor Speakers Great original Yamaha set of overall circuit diagrams for the Tyros model of Digital Workstation. This also covers is the TRS-MS01 Monitor Speaker system. These are the large overall circuit diagrams, all tucked into an original Yamaha envelope with punch holes on one side of it for placing it into a binder if you wanted to do so. These are very lightly used and in near like new condition, with the cover having some creases from storage. These are original documents from Yamaha, printed in Japan! This is a manual or document, this is NOT a piece of equipment or instrument. If you have any questions, I'm always happy to answer them. Thanks for looking and please check out my Store!