Emax

I have an old Emax 2. My problem is that I decided to try to install an internal SCSI Hard 
drive. Once inside, I saw that there was no drive holder inside my unit. To get a metal 
plate made or maybe a plexi one, I decided to wait. So, I put everything back, but now 
when I try to boot, I get a nasty  "eeeeeeeeee" sound, coming from the floppy. Lots of light 
are on, but nothing is happening with the floppy drive. Nothing on the LCD. 

....now everything is out! No sound nor light. It's basically dead.

Obviously, I did something wrong. I just wanna know if I can correct it myself, before I 
send it in for service.

Peace.

homershines