Ps4 no longer transmits a picture / no signal?

Unfortunately, the PlayStation fell down yesterday… But it still runs and switches on, but after the fall the picture turned black… I changed the TV and the HDMI cable, but without success.
Today I tried again, according to which one TV only shows a black picture without the message showing no signal, while another TV shows permanently no signal.
What can you do?
Does the HDMI port need to be replaced?

That sounds like a typical mistake, the socket (that's what it's called in the region) is probably torn, unfortunately that also happened to me

I think that a connection to the graphics unit is disconnected or the graphics card itself no longer really wants. The plug itself looks ok

But turn it up and see if something looks broken inside, if not, have the hdmi port replaced.