Well- the posted code is Device 2, Function 144. All
Denon receivers do use device 2 but the Power Toggle is Function 193. I've included the discretes for the receivers for you to try. I suspect however they will not work. You could try all 256 function codes and see what you find with the ususal caveat that you may find some system code or reset etc. They are available in this file :
[Link: remotecentral.com]
dwg
Device: 2 Sub Device: None Function: 225 On
0000 006d 0020 0000 000a 001e 000a 0046 000a 001e 000a 001e 000a 001e 000a 0046 000a 001e 000a 001e 000a 001e 000a 001e 000a 0046 000a 0046 000a 0046 000a 001e 000a 001e 000a 0673 000a 001e 000a 0046 000a 001e 000a 001e 000a 001e 000a 001e 000a 0046 000a 0046 000a 0046 000a 0046 000a 001e 000a 001e 000a 001e 000a 0046 000a 0046 000a 0673
Device: 2 Sub Device: None Function: 226 Off
0000 006d 0020 0000 000a 001e 000a 0046 000a 001e 000a 001e 000a 001e 000a 001e 000a 0046 000a 001e 000a 001e 000a 001e 000a 0046 000a 0046 000a 0046 000a 001e 000a 001e 000a 0673 000a 001e 000a 0046 000a 001e 000a 001e 000a 001e 000a 0046 000a 001e 000a 0046 000a 0046 000a 0046 000a 001e 000a 001e 000a 001e 000a 0046 000a 0046 000a 0673