I have old Sony amplifier (F117R) and CD player (CDP-590), both equipped with IR remote controls. The problem is that I bought them as vintage without remotes.
I have a rough idea how to build dedicated RC for both units but I'm missing the essential part - how is the signal encoded for the units?
I can find tutorials where the can be taught the codes from working remote control and how to build universal RC from that.
Is there any chance where to find IR codes for Hi-Fi units remote controls?