Wired Problem CDJ400

   

So I am borrowing a set of CDJ400 with the interest of buying cuze good price. 

But the seller did not realize that one of the CDJs does not work properly. 

So the problem is. When I power it on, only the USB, PC and the three red lights indicating scratch effect lights up.

The screen is black, and everything else. I can hear the CD boot ut, but it wont eject, and none of the buttons seam to work. 

I read that there was a way to force eject the CD by pressing the eject button while powering it on. 

The first time I did this, the whole thing booted normally! And I played around with it for about an hour. 

It worked great, well almost.... Sometimes the screen kind rebooted and said 'Power On' or something in that relation. 

Then when I turned it off, and on again, it whent back to step one. 

So I am now inside it looking for rust and cracks ect. But so far it looks OK. 

Anyone got any tips? I need to get this to work ASAP due a gig the 1 of august.