try another wall plug and without multisockets or extension cables and if the problem insist then need service.
the flashing led indicates problem and the number of blinking the specific problem.
search manual or google for the number.
My Sony KV-36FS76U is working ok in terms of picture and sound but it has started to switch itself. When it switches off the green led changes to red and back to green alternately, pressing the remote on turns tv back on. This can happen on an annoyingly regular basis but somedays just occasionally. Any help would be appreciated.

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