Bumping this as I have a similar question regarding my Marantz NR1403. It has a 3.5mm input on the rear for "Flasher" but the spec sheet specifically lists
"Flasher In/IR Receiver In/Emitter out -- 1 /
/
"
Which tells me that a flasher is not an IR receiver. If not an IR receiver, what IS a flasher?
Or can I use the orange "Remote Control In?" It's a coax RCA and every IR receiver I've seen uses a 3.5mm plug...
edit: Image for Reference