emusonacid!

So I recently bought an E64 Classic on Ebay. Got it in the mail, worked perfectly. Last night I forgot to turn it off and it was on for like 16 hours. When I got home from work I found the sampler on but the screen was blank. The fan was running, the screen was blank. I turned it off, turned it back on-same thing. I unplugged, replugged-same thing. I turned it off, left it be for a few hours (about 3), tried it again-same thing. I thought maybe I fried the LCD, but nothing seems to be working, no lights work, nothing flashing so it seems to not be more than just the screen. Can anyone help me out with this issue? I just got the thing and I'm afraid its toast.

Thank you kindly for your time.

Switch the e64 on and wait for about ten seconds. During this ten seconds the e64 should run through the boot-process.
Press the DISK/Browser button, press "9" on the number block.
If the e64 does not try to access the floppy drive then there might be something wrong with the mainboard.