I know this response is almost a month later than your posted question but here is a website (Panasonic UK) where you can download most all Technics Keyboard Manuals and other Technics related documents for FREE as a .PDF file.
Go to: http://support.panasonic.co.uk/ttips/searchc/home.htm
1) Select " Audio" and then click "Submit Inquiry"
2) Select type: "Keyboards";
Model #: "SX-KN2000";
Document type: "Operations Manual"
This website is a great place to obtain ALL Technics & Panasonic manuals and documents, so now you don't have to fear if you somehow lost your manual - it's available online for FREE.
Happy keyboarding to all,