Thanks Howard for all your help. By shifting the connectors my first thought was that the transistors should not be affected, but who knows.
Yes, I just have to go the hard way and measure as good as I can (don't have a scope). But if you can give some hints what the voltages for the transistors should be, it would be of much help. But you have been very helply so far, so I can't expect you to waste too much time on this.
