Fixing this game for someone else who just bought the game, problem I am having is one row of switches is not working. I have checked all switches physically, in switch test, checked physically and electrically the diodes, the wiring is good. I have pulsing on the strobe.

The board was tried in another game and worked flawlessly. I have tried shorting out the strobe and return in this row and nothing.

I have attached a picture of the switch matrix, the problem is on row I7. As a note, I have pulsing on all returns including this one, but if I close the outhole switch, the pulsing is slower or irregular.

20200216_091729 (resized).jpg

This is my last resort.

I forgot to mention that I checked continuity of the return wire.

The "star" switches should have those disc capacitors yes, one in question is missing but there was another star that was missing it so I thought that it was of little importance. Are they important?

Looks like I may have to repin the connectors, they don't fit very well anyway.

Good idea on replacing the caps, I will get these in the next couple of weeks and report back.

I have done quite a bit of repinning on pinballs, entire games, it is time consuming but when it needs it, it is all worth it. I have also done quite a bit on aircraft connectors as well.

Thanks for all the replies, this is always a great place to get great information and tips.

Got lucky on this one, reinstalled the missing capacitor...all switches in that row now work!!

Thanks everyone for the help