Thanks for your german sentence!

I know that PCBs get washed, normally with Isopropyl, what would have been to expansive for me. But I was unsure about simpe destiled water. As well I never thought that that coffee didn´t harm my 9600. I thought it is gone, that there had to be some fatal short-circuit fault. That is the main fascinating issue!

But nothing, it is totally ok again!