This manual provides instructions for the Yamaha PortaSound PSS-120, an ultra-modern keyboard. It covers the nomenclature of the instrument's parts, including the power switch, volume controls, and various section selectors for rhythm, orchestra, and melody memory. The guide details how to play the pre-programmed demonstration music, 'Yankee Doodle', and explains the operation of the DC IN jack for optional power adaptors.
The instrument is programmed with a demonstration music piece titled 'Yankee Doodle'.
A switch-off alarm warns you after about two minutes to prevent battery wastage.
The VOLUME control allows you to select four distinct volume levels.