Hello i am having troubles with the analoge inputs of my 8061. When i put a signal on 1 al the other channels go up to(only half) when i ground them they drop but not entirely. They seem make some sort of average of all the signaks(not very usefull)
It seems that the resistor array RA4 is in reversed position on the PCB or its pin number 1 is not soldered properly.
If in reversed position, I hope you have desoldering braid to remove its soldering.
that was the prblem indeed, thanks very much for the fast reply