Quoted from slochar:Any game I have that has the Z connector I get rid of. Straight wires for me, soldered and heat shrunk.
It's only there for convenience of assembly at the factory when they added the 8 driver board (or whatever extra board those games have)
Excellent advice! Just was having issues with an IJ I am working on with resets when just touching either flipper. 5.08 vdc on the driver board but only 4.75vdc reading at the MPU. No wonder the game reset with just the touch of a flipper button!
Just straight wired that connection and tossed the Z connector and viola! 5.06VDC at the MPU now. =)