Check all the voltages on the power supply. It's possible the display or other voltage is out.
Have you checked all the fuses in the cabinet? People assume that nothing happens in a move but it can cause problems to surface:
Loose fuse clips can make fuses fall out.
The destination may have slightly higher or lower mains voltage.
Basically what I'm getting at is something has changed (location, environment, time) so it is possible a fuse has opened.