1. Before you do anything else, if you have not cleared the System 1 and 3 keys, see this thread
[Link: remotecentral.com]2. Try making the macro again and only lightly pressing the power key when you put it in the macro. Sometimes hitting the key too hard will cause it to repeat. Also, and I am no expert on this, I think that Philips commands may sometimes repeat themselves.
3. Just learn whatever commands you need. It is normal for amp or receiver component codes to show, as you say, only the bare essentials, probably due to the large diversity of components being sold these days.
4. Have you tried making the “receiver power off” the last command, or at least put it after any CD commands? If this doesn’t work, then you will definitely need separate system control macro buttons to turn the receiver on or off, since you have described the problem perfectly and it will continue to do this as long as you have it on the same macro. If you have a switched power outlet on the receiver, you can plug the CD into it, but then the CD will come on whenever the receiver is turned on, which you may not want to do.