Quote Originally Posted by Mike_New View Post
However I have compared more closely block diagram and the circuit diagram, and there is most certainly a difference. The resistors are connected up differently.
I made a comparison between the pcb, the schematic and the block diagram.
Couldn't find differences...
It is best to redraw the schematic in a normal fashion to see how it actually works. If I find the time, I will do that today.

Here's the block diagram with "added value".


This is the schematic diagram.


This is the pcb.