On 24/02/2018 13:25, wrote:
There will be a memory-keeping capacitor in there somewhere that is going either faulty (age) or intermittent (cold solder). Either way, replacing it will fix it.

Peter Wieck
Melrose Park, PA


I'll bear that in mind, if I have to go inside.
At the moment I'll go with the business about button-D
on this thread
http://webcache.googleusercontent.co...&gbv=1&ct=clnk

I'll snap back a sewing-pin , after pushing it into the D button to
wedge it out, and swathe in a dot of hotmelt glue.
Resetting the thing , before doing so , of course