Xbox 1s Turns off after a few seconds

Hello, my recommendation would be to contact the technical service as it may be due to several problems and from here we can do little if it is a matter related to hardware, a greeting.

Does the console turn off or just the tv input?

I concur with above but wanted to share my personal experience,

I had something similar, but it was when I first got my 4k tv, I needed to buy a 4k capable HDMI cable, not all HDMI's are born the same. Once I bought this I was fine and was able to check in settings if 4k was set up.

Hi HallowedRobin,

Sorry you're having issues with your console. When you say multiple power cords are you referring to power strips? What color is the power supply when it turns off? It could very well be an issue with the Xbox Power Supply which does not cost as much money
as the console to service. See this link for troubleshooting on your power supply. Use the
Xbox Service Center to process repair requests for your power supply and your console.

Hello dear Gamer, first it's a pleasure to be able to help you today.

My name is Vinicius.

I am a gamer and independent advisor on the XBOX community platform.

Hey JaradWebb, how are you today? Hope you're well.

JaradWebb, I'm so sorry for the trouble you're having.

It seems like your console might be having an issue within its hardware. Could be also the power brick, would be a good idea to test another one. But, I recommend taking your console to a repair store in your region, since Microsoft doesn't offer repair services for the Original One anymore due to that model is not manufactured anymore. :/