I have a cactus jacks that has worked perfectly for 5+ yrs. Today a ball went into multiball hole and then seemed as though no solenoids worked. I manually removed the ball replaced in trough new game didnt start. I went to test mode enter solenoid test push credit nothing from left bumper. Pushed front cabinet button right and left and i cant change solenoid. I checked removed/reconnected a3ja connector on driver board nothing still. F8 slow blow 8v fuse still seems good. What could cause no function of the buttons?

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Fuse is good that was my first thought. Even without a fuse in place I should be able to use the scroll buttons in test mode as I verified it on another cactus jacks game. Cant be a broken wire because its 3 different switches. When I unplug the A3J3 plug on the other game I can replicate the condition so it seems like it may be related to that connector.