PSR-SX900/PSR-SX700 Owner's Manual
Do a right-click to open this up in a New Tab
https://uk.yamaha.com/files/download/other_assets/1/1279261/psrsx900_sx700_en_om_a0.pdf

PSR-SX900/PSR-SX700 Reference Manual
Do a right-click to open this up in a New Tab
https://uk.yamaha.com/files/download/other_assets/7/1279207/psrsx900_sx700_en_rm_a0.pdf

I think the SX900 is going to be a very popular keyboard. I know quite a few people who have pre ordered.

Hello
For new owners ..
My handbook button by button and piece by piece. How to negotiate the touch (Poke) screen on PSR SeXy900.
Click the below to go there
http://www.tierce-de-picardie.co.uk/viewtopic.php?f=449&t=8368
Regards, Den.