Be sure to add me to your favorites list Yamaha DGX-203 DGX-205 Keyboard Original Overall Circuit Diagram Schematic Sheets, in Yamaha Folder. Great, original Yamaha set of overall circuit diagrams for the DGX203 and DGX205 models of Portable Grand keyboards. This has the overall circuit diagrams, all tucked into an original Yamaha service envelope with holes on one side of it for placing it into a binder if you wanted to do so. These are in near like new condition, with some wear on the folder itself. 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! Check out my Store!