Sorry to be a bit thick; but where would be the best place to check for a short ? I don't want to spend £70 on a PCB and then blow that up !
Yes I checked the voltage with a multi meter. I had thought of the earthing, but will check again before fitting the PCB. Very grateful. I live in France, so you won't hear the bang when I get it all wrong. Many thanks
Sixty six pounds later the PCB is fitted and all is working well. A very satisfactory outcome I should say. I now have the old printed circuit board and its cradle. I wonder if there is someone who would just sell me the PCB's to fit into the cradle. ( I subscribe to the belief that lightning does strike more than once in the same place having had my house struck three times in one storm whilst living in Uganda.) Anyway, thanks a lot Keith