Yamaha PortaTone PSR-22 Owner's Guide provides essential instructions for operating this vintage digital synthesizer keyboard. This original multi-language manual includes sections in English, German, French, and Spanish, covering nomenclature, battery installation, rhythm and orchestra settings, and technical specifications. Ideal for collectors or musicians looking to complete their vintage Yamaha setup, this guide ensures you get the most out of the PSR-22's unique features like the Custom Drummer and Auto Bass Chord functions. Printed in Japan by Nippon Gakki Co., Ltd., it remains a valuable resource for maintaining and mastering this classic electronic instrument.