I recently dropped my Sony RM-U305C remote for my Sony STR-DE685 Receiver/Stereo Amp with the reslt that it no longer functions (totally dead). I have found several possible alternatives, the closest in functions being the RM-U304.

Can anybody tell me whether this would work with the STR-DE685, or perhaps can suggest another alternative, as the original model is no longer available.

Any and all help appreciated.