If they are your own created Technics styles then you will need to convert them to the Yamaha format, and the only program I know that does this is Style works http://www.emc-musicsoftware.de/eng-shop/eng-dscstw.htm

If it’s the standard Technics styles then they have all been converted to Yamaha format and are free to download here http://psrtutorial.com/sty/keyboards/technics.html as well as other sites.

Hope this helps

Bill