My Marantz sr5008 had previously been brought in because it would be constantly shut itself down. The repair was basically the right speaker output which was shorting it. Fine. now i bought myself a new TCL led tv and ran all my components through the SR5008 and then through the HDMI arc to the tv. It worked for awhile originally but then yesterday when I was testing new speakers, the unit shut off. Now when I try and switch through the reciever to the different components, now of them are showing as being hooked up. The tv has a ROKU box built in if that makes a diff and none of the components are showing as being recognized by the Marantz. The repair guy told me to be careful because these units have issues with their HDMI boards and are good as toast if they short out, especially the Marantz. I've reconnected all HDMI's and tried resetting tv settings for hdmi. nothing. next I'll try resetting marantz and resetting all defaults on tv to original. I've also tried unplugging and replugging receiver but nothing. Any thoughts pls? love the reciever but now thinking about getting another - either Onkyo or a Denon to replace this piece of ..... never mind. Thanks.