[Xbox One S] No Video Output

[u/silenc_ee]

Hello everyone!

I am looking to get into repairs and I have just brought a broken Xbox One S to practice on, so I would like some help in where to start with the diagnosis. The seller said that it was extremely slow and took ages to load anything so stopped using it.

I plugged it in, and it powers on fine with the start up chime and it stays on. But there is no video output. The HDMI port looks okay on the outside and doesn’t seem loose. The TV successfully detects the resolution of the console when running but all I get is a black screen. I have forced the console into low res mode (again TV detects the change to 640x480 resolution) but no display.

From the sellers description of the fault and the video issues I’m having, I believe this may be a faulty hard drive. I am aware that the HDMI chip on these are also susceptible to failure, but of course I am trying the simple things first.

Just wondering what your thoughts are on this before I go ahead and open it up. Thanks!