If you're looking for a manual for Yamaha Genos, PSR-SX700 or PSR-SX900, please to the following page: Manual for Yamaha Genos and PSR-SX700/900
At the following link you can find a new english manual on how to connect and configure SongBook+ and Yamaha keyboards:
>> Link to download Manual_Yamaha_SongBook.pdf (English)
>> Link to download Manual_Yamaha_SongBook.pdf (German)
>> Link to download Instructions_Yamaha_SongBook.pdf (French)
>> Link to download Manual_Yamaha_SongBook_CZ.pdf (Czech)
Here is also an interesting video manual from Fred Smith, a user of SongBook+how to control SongBook+ from Tyros:
(But it doesn't show the new possibility to use "Code" but the older method using the "MIDI-Wheels")