4 PSR-E343/YPT-340 Owner s Manual About the Manuals In addition to this Owner s Manual, the following Online materials PDF files are available. Using the online preview, you can quickly view the contents and go to the page where you will find the solution to your problem with Yamaha PSR-E303. PSR-EW410 is an ideal 76-note keyboard for performing various styles of music, from the latest hits to vinyl favorites.įollow any instructions given if a dialog box opens on the computer, it will let you know if you need to load a driver. User Manuals, featuring a chord or download. Yamaha Psr E233 Midi Driver 47 - This package supports the following driver models, Yamaha USB-MIDI Driver. If you have added a keyboard as MIDI controller. I plug the MIDI In cable into the Out socket of a Yamaha PSR 450 keyboard, and Out into In, and power on the keyboard.