Mike wrote:
Thanks 3T39

I was about to contact a repair shop, when I managed to find the
vertical section on the motherboard.

I gave it a clean with a cotton bud, as it was thick with dust. The
tv's over 20 years old.

Anyhow, it seems to be working now...!

There is no way on earth that dusting the set will bring about a repair
to this sort of problem. You have treated the symptom not the cause. If
you are serious about getting this unit working properly, *Take the
advice given you and get the set in to a tech who will do the necessary
simple soldering*. It sounds like you may be out of your depth here.
-B.