Congratulations on your new Yamaha PortaTone. This high-quality musical instrument incorporates advanced digital technology and versatile features. To obtain maximum performance, read this Owner's Guide thoroughly while trying out the various functions described within.
The guide covers essential topics including power supply options (batteries or optional adaptor), nomenclature of controls and connectors, voice selection, accompaniment styles, chord sequencer usage, MIDI functions, and keyboard percussion. It also includes specifications and information on optional accessories.
The instrument requires six 1.5V SUM-1, "D" size, R-20 or equivalent alkaline batteries.
Yes, the PSR-37 will run either from batteries or the optional power adaptor.