I've recently come upon a DoDonpachi Daioujou PCB that suffered some battery damage.
After replacing the affected resistor networks, RN2-4-5 respectively, with this, what seems to be identical part : https://www.digikey.ca/short/qj78bj
I am missing the following inputs : Coin1, Coin2, Player2-Right, Player2-A+B+C..
But I went back to the work table and realized the following : on the original part, which has RSEC3 written on it, I get the following resistor readings on the multimeter:
Pin 1-2 : 10k
Pin 1-3 : 10k
Pin 1-4 : 10k
Pin 1-5 : 10k
Pin 1-6 : 10k
Pin 1-7 : 10k
Pin 1-8 : 10k
Pin 1-9 : 10k
Pin 1-10 : 0
But when I measure other pins together, I get some normal results as well as some strange ones :
Pin 2-3 : 330
Pin 3-4 : 20k
Pin 4-5 : 330
Pin 5-6 : 20k
Pin 6-7 : 330
... and nothing ever out of pin 10.
Could this type of configuration even be possible !? I'm not sure I understand or can find any reference part that ressembles this configuration.
