Nuc does not start

Hi-

I just purchased a new NUC (DN2820FYKH), ajd it would not start.

It is equipped with 8gb of ram and a 120gb SSD disk. I am in the process of testing these separately,  but it seems unlikely to be the cause though.

When I launch the device, the white light sets on,  fixed, and I can hear the fan. But nothing comes on screen (tried with a projector and a PC screen). As a matter of fact, even the USB keyboard does not light.

Could you please let me know if you can think of ways to sort this out?

Thanks.

Julien