Quoted from megoman:Howard suggested I check switches on motor line per the schematic (D,W,A,DB,Z,O). Unfortunately not all the relays are labeled. Attached are 2 photos showing what is not labeled (forward 3 relays in cabinet and the bank of replays under playfield). Would appreciate if someone could help me identify.
The schematic identifies all of the wire colors which should help you identify the relays with missing labels. In @howardr's schematic above for example the R relay coil has a black wire on one solder lug and a red-white wire on the other solder lug. Most coils will have one black wire but the other wire is likely to be unique to each relay coil.
The wire colors on the schematic will also help you identify specific switches once you've found the relays. The schematic above shows that all of the switches that can run the Score Motor connect a slate-black wire to a red-white wire, because they're wired in parallel.
/Mark