Axiom Home Page Forums General Discussion Home Theater Help choosing an in-wall component rack/shelf.

It's a remote code.

With normal remotes, you're sitting in front of the device, and if it's off you hit the power button and it turns on, if it's on it turns off.

With automation and multifunction remotes with macros, in the situation above the remote has to know the state of the device. Otherwise, it'll be turning it off when you want to turn it on. That's were the discrete codes come in (you'll also find them for input selection, instead of using next vs. previous input, and things like that).

My theory is that when using the rear input the receiver me be setting itself into a home automation mode where it is requiring the use of the discrete off command to turn it off, so a spurious, generic "power" command doesn't turn it off when you actually want it to be on.