Hello., I have a Panasonic DMR-EX78 DVD recorder, maybe around 10 years old. It had been working perfectly and now there is no display (such as the clock), the unit will not switch on by its own swich nor using the remote. The fan does run, though. The outputon screen, fed by SCART lead, is distorted. I've tried unplugging from the mains and leaving overnight, but there's still nothing except the fan running. Does anyone have any suggestions, please?