Hi,

this tv has just started switching off after 40 seconds and straight back on again. Does this four times then stays off, at which point the red power light flashes 8 times at about 1 second interval, then a short delay, then flashes 8 times, and contiues this cycle. Presence sensor is switch off, and the timer is not activated.

It did it a bit yesterday then eventually it stayed on all evening, but today it's done it all evening.

Has anyone any ideas?  Andy