There is a switch on the motor that keeps the motor running. If you have a schematic is should be listed with all of the other relays.
I suspect that that it is dirty or the gap needs to be adjusted.

I don't have your machine so this is an example. M is the motor and Motor 1C is the switch that keeps it running.

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That’s how I feel sometimes about my 300, and I know what I’m doing. Gottlieb’s are a B to work on.

Would be the best way to troubleshoot within the circuit.

AX has to energize and latch in order to perform the startup sequence. The score motor should keep running til the AX reset coil fires. HowardR has shown you the path of the switches that must work in order to make AX energize. The jumper wire technique is an efficient way to narrrow down the switch that isn’t doing its job. It could be as simple as a dirty or misadjusted switch, or a bent solder tab, or broken wire. The good news is you have the startup sequence and schematic.

Dave

The highlighted path includes the AX coil (no switches on AX), a switch on the U relay, a switch on the S relay and the 1D switch on the score motor. You could inspect each of those or use a jumper wire to jump each of those to fin switch one is not completing the circuit to energize AX. You may visually spot the problem as you’re looking at each location, or find a mangled switch, etc.

The wire color tells you which switch you need to look at. Sometimes the colors are faded which does make it more difficult.

Dave

not sure how to interpret that, but AX is an interlock relay with a trip and latch coil. There should be a label on it to say which coil does what, but the AX reset/latch coil has a GR+RED wire on one lug. You want the other coil to power when the S relay powers (and motor 1D switch closes)

when the S relay powers, AX should trip and it doesn't get reset/latched until the reset sequence is done. As howard said in post #3, when the AX trips, a switch on it keeps the score motor powered.

if the AX is tripped and the score motor isn't running, check the AX switch with the YEL+RED and RED-WH wires.

you're late step 4 or early step 5 in the "operating instructions" sequence. If the score motor isn't running tho, you're not getting any further.