Hey folks, great forum, wish I found it earlier.
Current controller, new problem never encountered before.
1708
mint condition so could of been faulty from new
everything works perfect, except B which is of course on bigger board....dead
swapped out rubber membrane...but looked new, and used one made no difference.
Any ideas how I can test, fix, diagnose how to get B button response ?
not very knowledgable, but have multimeter and soldering iron at the ready.
lots of spares too
many thanks u pros