I have a 3900X that was working a couple of days ago and has been fine since I got it. When I turned it on the TV said there was no signal. I have unplugged the power from the device while the tv was and it still said no signal. I swapped the HDMI cable to two different ports and still no signal. I swapped the HDMI cable out and again tried it on all three ports and still had no signal. The power light is on. I did a reset and the roku screen comes up, lets me select my language and then tries to autodect the video. After a few seconds the screen goes blank and then a few seconds later, no signal. Every time I reset the device I get the same problem at the same spot in the setup.