40xbr2 bravia kdl sony LCD tv. The screen shuts on and off randomly on all video(cable dvd,s playstation). I have tried the factory reset and still the same problem. Took the back panel off not much dust, TV was made in Aug 06 Help!
Problems relating to the automatic turn on and turn off of a set like this usually point to the main board being an issue. For this set, I believe Sony refers to that board as the "AU" board.
It's probably not the G/Power Supply board, especially if it turns itself on. Power supplies will turn a set off, but rarely--rarely--turn itself on.
If there's no kind of extended warranty involved here,
you could be looking at $500.00 for parts and labor to repair this kind of problem.
As always, try any software/firmware updates Sony might have available on their website prior to pursuing a repair visit.
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