i believe it is in the extreame right side near the bottom middle.
It's directly undeneath the power LED in the center. It's difficult to access with an IR remote; I had to position one of the IR extenders on my Harmony Hub directly in front of and underneath the LED for the hub to work.
Thanks for reply. This info is exactly what I need for my Xantech IR transmitter and Harmony remote. I will check this out when I am back in town and post results.