SQ-6 power Issue

When i put my SQ-6 mixer on, just the power lighy and the fans come on. The screen and the interface has no power…can i please get some help

If you leave it for a few min does it eventually boot up?
I’ve got one that if left for days without power can take 2 min before you see the run of blue lights to boot…

It doesnt boot up eventyally… have left it on for over 10mins.

So i left it on Overnight and it did book up.