Could be possible that the sleep functionality is active here. Can you verify that it is off?
Ya,it was confirm that the tv was Suddenly off right in the middle while we're watching the movie but the problem now is we can't turn the tv on or start. When I put the plug on the tv wont start, but the standby lit keep lflashing
Usually that is some sort of code from a fault contact Sony for more information.
apparently its overcurrent protection, sounds like a fault in the power supply,
in any event will need a technician to put it right.