"Arfa Daily" wrote in message ...

Assuming that it's one of the tactile 'dome' switches, it is very common
for these to 'collapse' and effectively fail short circuit. I know that you
said you were not looking to repair it, but it really is a very simple fix
if you can be bothered to take it apart.

It's not a question of "bothered". I have to find the service manual so I can
"rationally" remove the lid. (It's not obvious how it comes off.) Once that's
done, it will be a simple matter to unscrew the panel covering the switch pad.

Thanks for your encouragement. Now, if I can get some help with the Lux
amplifier I damaged yesterday... (There's always John Curl.)