So sorry to hear about your troubles! I also burned out mine, but just the display (I was screwing around and accidentally plugged it into the aquabus port and not the display port!).
It is my understanding that the LT is just a normal Aquaero w/o the display, so if the display doesn't work when plugged into it then I would imagine it's burned out too. You should check in Aquasuite though under "Display & Hardware" and see what it says next to "Display Type". Maybe you have to flash it as a full Aquaero and not a LT?