My Panasonic flat screen suddenly shut off. The on/off button keeps blinking and have to unplug to turn off. Cable company cam

[Azalida]

Panasonic flat screen suddenly turned off. Red on/off light keeps flashing. Cannot manually turn off. Must pull plug to turn off. Wait 30 seconds plug back in hear clicking and back to normal. Cable came out. Said wasn't cable but TV. Any advise? Thank you.

 

[americanaudiophile]

Power supply board would be first thing to look at. You can check with this company for help and replacement boards.
http/www.shopjimmy.com/panasonic
I suspect you are not comfortable trying to repair the TV yourself so either a knowledgeable friend or local tech might help.