The links at this page leads to a wealth of wisdom about Yamaha keyboard related topics.
Tutorials, FAQs, knowledge bases, video instructions, resource files, specifications.
It is all here.
And some links even point to files to download and to use directly in your keyboard.
At the listed sites you can find any relevant information applying to all/more models within the Yamaha Genos, Tyros, PSR, CVP, DGX, YPG and YPT range of keyboards.
Resource Sites
Service Manuals for keyboards etc.
Resource Sites - Non English Language
Instructions
LearnVideos - Musical & Cartoons
Make style with Cakewalk/Sonar
Two measure Fill In; long Break etc.
Files
Yamaha: Music Database Libraries
Technical Stuff
Style Files - Introduction and Details
Misc. Sites