Hi Bill,
thank You for your hint.
unfortunately it isn’t that easy. I was hoping for a quick win.
i checked mentioned cables and now I am one step worse.
still no button response and now
only radio is working.
Tm27 does show the slc err, but in tm71 the whole unit shuts down after opening and closing the door.
Before my opening, tm71 was running quite good. what did I made wrong?
best regards
69er