Thanks Roel. More complicated than I thought, but I will probably give it a try.

Hope the springs don't all fly out!!

About the two keys. I hadn't used the keyboard for a couple of weeks. Switched it on and both keys didn't work.

Worked one of them on and off for a minute or two and it slowly returned to normal. Did the same for the second key and that too started to work but has not really settled (still misses the odd sound when hit).

Sound very much like the contacts to me.

I have the keyboard under an attic window which may have dripped some rain water onto the keys.

Thank you once again for your kind help.

All the best

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John
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