Were the fuses blown?
Were they left "on"?
Anyway, it looks like both the power supplies blew - if left powered on, that might have been some line spike while being away. If left "off", that would be a seriously unlucky event, to fail at the same time.
Maybe checking for visual clues on the power supply board will bring up more details (blown capacitor, maybe even another fuse). Be careful, high voltage might be present, don't touch the PCB (especially from the underside).