can anyone help me find an online manual for the jv-80? I am borrowing one for a new year's eve gig but I don't know how to program it. It doesn't seem to have a lot of sounds unless I can't find them all. I don't know how to assign vibrato to the modulation control for the trumpet sound. I need a strong attack string sound, etc. I need to assign my edited sounds to buttons. I need help!!

Roland doesn't put manuals online.

See Nates' homepage at http://www.nathansheldon.com/xp-80/

first 8 chapters plus some appendix material.