Playback Issues - Audio/Video & Power

Help with audio & video playback issues, TV display type recognition & compatibility, HDCP messages, troubleshooting playback errors, advertisements, and resolving power issues.
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Level 7

Roku turns off the TV

I used Roku for about 2 months without any problems. All of sudden while I was turning the TV on it shuts down. After I tried to troubleshoot it turned out that TV works, but as soon as I plug in HDMI cord with Roku it shuts it down again and won’t turn on. I reset multiple times but nothing happened. There’s definitely a cord or Roku itself issue. I require to send a new power supply. 

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