Quoted from DPhillips1965:Tripping the PF "single" rollover .... energizes the E relay
Tripping the PF "double" rollover....energizes the E&D relays
Tripping the PF "triple" rollover....energizes the E&D&T relays
Tripping the "home run" PF rollover....energizes E,D,T and H relays
Varitarget energizes the E,D,T or H depending on position
So from this we know that the playfield switch, the plug and wiring from play field to bottom board where the score motor and relays are is good. Where is the signal supposed to go from the E, D, T or H relays? To a point relay(1, 10, 100) in the backboard? To the I relay? All the relays and coils test fine, the signal just seems to end at the appropriate relay instead of going on to wherever it should to complete the scoring and reset said relay.