Picked up a Space Mission project machine recently and I'm not sure how to resolve this issue. The coil for the 1-Point stepper for player 1 is roasted, which isn't a huge deal - something is stuck somewhere that needs to be unstuck. The problem is that according to the schematic (https://www.ipdb.org/files/2253/Williams_1976_Space_Mission_Schematic_Diagram_continuous.pdf) this coil doesn't exist as far as I can tell, so I can't trace it back to whatever is energizing it. There does seem to be an issue with the 50-point relay since the 3 switches (circled below) advance the score unit but not the 10-Point DU; however, the 10-point relay works fine, and I can't imagine why a bad 50-point relay would cause problems with the 1-Point stepper coil. So, my big question: why is the 1-Point DU/coil not indicated in the schematics, and what could keep it constantly energized?