I'm trying to build a generic IR remote controlling device using an arduino.
I've done some investigation to discover the IR protocol used by my NAD SR8 remote controller.
I've connected a simple IR photodiode to an oscilloscope in order to dump the signal coming from the remote (VOL UP key).
I got the following:
This signal looks like a NEC IR protocol regarding the documentation. I've decoded the signal:
1110 0001 0011 1110 0001 0001 1110 1110
I don't know why but this signal does not fully comply with the protocol specification:
 0001  1110 0001 0001 1110 1110
Am I wrong somewhere (wrong protocol) ? Is the remote controller broken ?