Just as an update for future repairs, after excellent advice from Flat TV Parts I have replaced the Main Av board and ..... its all back working

Remote control and sound all fixed.
Don't know if this is the right place to ask but I have noticed, and its only on an odd channel or two, that for about 1 minute the picture and sound aren't sync'd. Once it syncs and I change channel and go back, its not sync'd again. Really odd, never noticed anything wrong before. Is it something I can change in some settings on the tv or should I just not bother and be pleased I've fixed the other problem ??
