Hope you can help me with my problem.
I have a Revenge from Mars with a problem in the switch matrix.
The problem seems that when the contact in column also the contact in the column 2 is 1 Series 1 closed closes.
This happens with every contact in column 1.
If one closes the contact in row 1, column 2 is not the case.
The playing field is separated from the power driver board, the problem is thus the PDB.
Has anyone any idea what could be the problem?
greetings from Austria