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Old 09-14-2018, 01:40 PM
dblanch dblanch is offline
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Default Bumpers not working

I just got a sharpshoot machine by game plan and all the upper bumpers aren't working. Noticed they were all wired in parallel so I traced the wires to the harness and found that the path hits a dead end. The yellow black wire has nothing on the other side and, what I can find in the wiring diagram (I'm a total beginner at wiring) it is supposed to be connected to 15VDC from the power supply. The problem is I can't find any loose wires in the cabinet. Can I just splice something together and wire somewhere else?

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Old 09-14-2018, 03:06 PM
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pinballdaveh pinballdaveh is offline
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The yellow-black wire is the daisy chain common wire that connects each coil on the playfield. Each coil is driven by a driver transistor on the driver board. Have you tried the self test function to see if the suspect coils actually work? Because it still might be a switch or board problem. If any of the playfield coils do work the yellow-black wire is working. Sometimes a wire will have a color change in a connector from the cabinet to the head.
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bumpers, sharpshooter, wiring

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