*[[Media:Yamaha v9958 ocr.pdf|MSX2+ Graphics Processor - Yamaha V9958]]
*[https://download.file-hunter.com/Manuals/R800%20User%20Manual.pdf ASCII R800 CPU User Manual (japanese)]
*[[File:Yamaha ym2413 frs.pdf|MSX-MUSIC OPLL - Yamaha YM2413]]
== Links ==