This document is the User's Guide for the Yamaha HE-4 and HE-3 Electone electronic keyboards. It provides instructions on how to produce sounds, use basic registrations, and operate the various voice sections including Percussive, Arpeggio Chord, and Orchestral Voices. The guide also covers using effects, adding rhythms, and playing percussion instruments.
Keep the Memory button continuously depressed for about one to two seconds.
Some units may lose some user programmed data, but factory programmed memories will not be affected.