Red protection light on 200! Suggestions?

[now]

I was out of town for a week. When I returned, my Devialet 200 was not functioning, although it had played well before I left. The red protection light on the rear by the AC input is glowing solidly. The LED is dimly lit but there are no visible words. Neither the hand held remote control nor my android remote control operates through the 200.

I tried unplugging the power cord & replugging. No response- red light remains on with unfunctioning 200. Unplugged all connecting cords & re-connected. Still nothing. Turned off, pulled out SD card and turned on with no card. Same problem. Powered down, pulled SD card, put back in, turned on, same problem.

Any thoughts on how to fix this?
Thanks, Ken from the Pacific Northwest, USA