Be sure to add me to your favorites list Yamaha MR10 Drum Machine Service Manual, Schematics, Parts Lists, Hard Copy Reproduction Booklet This is a very good hard copy (paper) scanned and printed reproduction of the Yamaha service manual for the MR 10 Drum Machine from the early 1980's, in great condition. I scanned this myself many years ago. It would be very helpful to work on / test / fix / and circuit bend your MR10! 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! Please check out my Store!