Miggy,
No idea on repair tips, sorry.
I did realize something else; I no longer run DCS as it has become too complicated for me..not confusing, just too complicated. I know Barry will say something like, "read the manual." However it has to be fun, not rocket science in sanskrit for me. It is impressive trains can do so much. Perhaps the mfgs have overshot the mark on what people want to be able to do?
Ernie