I was once searching for the Ultra XT manual, but had no success. Be aware that the hardware of another EMU model may be very similar to your sampler . So for instance, the E5000 Ultra manual helped me out - it gave me the hardware specs I wass looking for.
I have the original v3 paper manual if that`s any use.the v4 addendum can be found online.Can sell cheap for $15u.s.; I live in australia though so postage will be about the same $10-15 if your overseas.