Be sure to add me to your favorites list Yamaha PSR-125 Portatone Keyboard Service Manual Notes Booklet Excellent condition, lightly used reproduction of a Yamaha service manual for the PSR-125 Portatone keyboard. This is the companion model to the PSR-73, and this service manual is an abbreviated one, with the specifications, dis-assembly procedure, overall assembly exploded diagram, hardware parts list, keyboard assembly and electrical parts list. 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! Thank you for looking! Please check out my Store!