I don't know yet if this solves the clicking standby fault, but it
very well may be.
No, it didn't. But I don't care anyway for that function so someone
else can tackle that. TNX BTW to Michael Collard for the schematics!
Without those it would have been a lot harder to fix it. I may not
even have started the repair

It is kinda weird though that these two faults seem to go together...