If you're here, I'm assuming you're trying to troubleshoot a faulty Blu-ray player. Panasonic DP-UB820How to troubleshoot a broken Blu-ray playerThe common culprits and fixesYour first mission is to check that it's really your Blu-ray player that's at fault. Your player, TV, and HDMI cable should all support HDCP 2.3 or later. With DTS:X, for example, you might set your player and TV to pass audio along to a compatible soundbar. Honestly, it's unlikely that a Blu-ray player will overheat so much that it shuts down -- but if it's sitting in a dusty, insulated space within a hot room, it's possible.