This earlier thread lists some remotes which will control the U2-1110, 1120, and 1130 using setup code TV 0603 (10603 in remotes that take 5 digit setup codes).  Besides the UEI remotes listed there, a poster suggested that Harmony would also work. The point of that thread was to be able to reset the lamp counter, and the UEI remotes don't seem to be able to do that (without using a JP1 cable).  Maybe a Harmony can.