Siggi
I gave up at some point to understand the theory of operation for the readout function - too complicated. So initially is it was the finger- afterwards I try to understand the circuit and I concluded that probably the input signal was to low - as I could influence a digital signal with my finger. Then i measured the level and confirmed that the inputs were practically zero, comparing this with a the 2nd scope made it really clear.
As I mentioned the schematic for the digital part are wrong- so I had to reverse engineer that schematic by looking at the "good scope" I am wondering If there is a new revision of the schematic. My scope has S/N higher than 50K which is listed in the standard service manual.
Bernd
