I have a Panasonic tx-58ax802b the tv fails to start and gives 6 red blinks. if i keep trying the tv will come on, sometimes after a few presses sometimes a lot more, it's completely random. if the set was on all day and you turn it off at the wall it does the same thing. if i set 'usb charging power on' in the menu, and turn the tv off it will come straight back on again. the usb power timer lasts for 5 hours then the tv will power right down and be hard to turn on again. does anyone know what the problem is?