Yamaha PortaTone PSR-2000/1000 Bedienungsanleitung page 172

Yamaha PK CLUB (Portable Keyboard Home Page, English only)
http://www.yamahaPKclub.com/
Yamaha Manual Library (English versions only)
http://www2.yamaha.co.jp/manual/english/
M.D.G., Pro Audio & Digital Musical Instrument Division, Yamaha Corporation
© 2001 Yamaha Corporation
??????? ???AP???.?-01C0 Printed in Indonesia