Thanks, I need to de solder to get a better measurement, but shoul be a resistor array
at the moment:
1-20 10 Omh
2-19 10 Omh
3-18 10 Omh
4-17 10 Omh
5-16 10 Omh
6-15 10 Omh
7-14 10 Omh
8-13 10 Omh
9-12 10 Omh
10-11 10 Omh
all other combination 5 megaomh