Thanks everyone for all the advice,

I'm sorry I can't give the model of the TV (it's written on the back,
but in the TV shop!).
If it's any help it's 27 inch and about 4 years old.

I think I'll probably just take it to another shop.

I don't think this is the case as there is definitely a pattern to the
shutdown.

Thanks again.

Charlie

Tech Data wrote:
Ken G. wrote:
How old is the tv set ? About 3 - 4 years ago that brand started
putting defective parts in their tv sets including picture tubes .


I agree it seems a bit suspect but, in the last few years crts,
especially LG/Phillips tubes have been developing a G2 short that would
shut the set down. In addition, some have been designed using a circuit
similar to Sony's Ik line that if the screen voltage(G2) varies more
than 10%, that will also cause the set to shutdown. There are ways to
beat both problems but, all this being said, he might be on the level.

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