Xbox One X powers off after ~3 seconds

I recently purchased an Xbox One X (Scorpio Edition) off of a guy on Facebook. It was a very fair price and the guy said the only problem with it was something having to do with either the power cord or supply, causing the system to not stay on and power down.

He said the last time he played it, it ran great but the next time he tried to turn it on he ran into the problem below.

I received it today and plugged it in and pressed the power button. **The startup sound did play, but did not display anything on the TV. About 3 seconds later, the power button shut down and you could hear the console internally powering off.**

**Could this be a power cord issue (cheaper solution) or should I replace the internal power supply?**

:)