Nelson, try this... As a learning experiment (for you not the remote :)
Press the Learn button in ProntoEdit. But don't do anything else. Just wait. See how long it takes for the "Waiting" dialog to appear and see how long it takes for the Pronto to pop up a new dialog with a "Learn Failed" error.
Basically that's how much time you have to start sending IR to the Pronto. As long as you start within that window you should be good.
Generally with the Pronto I find that you should not try learning with a very sharp (fast) tap. Just give the button a good (normal) press or a long press. Long pressing works fine if the Pronto recognises the repeat patterns of your signal, otherwise it creates a super-long signal that you don't want. The goal is to have the Pronto capture the appropriate one-time and repeat portions of the signal - and strip down/off extra repeats.
I think with NEC it should work with a long press - the Pronto should strip down the extra repeats.
John posted clean signals which you can work with. You hsould still try the learning, if only to confirm it works properly and so you can use the methods in the future with other remotes.
In any case, learns that are not perfect, but "good enough," will still allow you to decode them and get the exact function/command numbers so you know what to do with your makehex output.
