Hello friends
I make the following recommendations for installation for the models:
Use the PSR SX 900 Expansion Pack: For Genos and Tyros5
Use the PSR SX 700 Expansion Pack: For the PSR S975/970, PSR S775/770
Use the PSR SX600 Expansion Pack: FOr the PSR S670
Please when you use the Yamaha Expansion Manager, when you finish adding other packs, please do NOT use cqi......USE only CPI , this way you have no trouble.
Manuel Dorantes