I am looking for the input 1 and 2 codes to my JVC projector (3000) and instrutions on how to put them in my URC 850.

Let me mention what I tried and could not do.

I want to add the discrete inputs 1 and 2 to my JVC projector in my URC 850, which I have used for years.
So I downloaded the discrete buttons into my Harmony Remote and tried to have my URC learn them. (My URC stopped updating years ago). But the URC would NOT learn these signals no matter how many times I tried. Sheesh!
I’ll take suggestions here too!

Thanks!