Be sure to add me to your favorites list Original Roland HP-60 HP-70 Electronic Piano Keyboard Service Manual Service Notes Schematics / Parts List Booklet, Japan, 1986 This is an original Roland service manual for the Roland HP-60 and HP-70 models of electronic piano keyboards. It is an original service manual in good condition, with some minor wear, and it's complete and extremely detailed. With specs, exploded views, block diagram, test and adjustment modes, parts list, circuit diagrams, schematics and more. Original Roland document, printed in Japan, from 1986! 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. Thank you so much for looking! Check out my Store!