If you really need help to remove the disk tray, then I suggest you might want to send it to somebody else for repair!

Or just undo the four little screws on the outside of the chassis, two on each side, that hold the tray in place.

If there are no LEDs on at all, even inside, then check both the AC adapter and the internal empeg power supply circuit. There are some red jumpers near the 5.0 and 3.3 volt supplies, which you can remove (jumpers) to isolate the power regulators from the rest of the empeg. Then measure voltages at the pins where the red jumpers once were.

Cheers