Quoted from marksf123:When I turn the game the CPU Board responds as follows
D19 & D21 on, D20 off
quickly goes to D19 off, D20 flashing, D21 On
D20 flashes very fast, I would say faster than every half second.
When I turn the game on the GI lights come on in the playfield and the backbox. If I just leave it on, after a few minutes or so the insert lights come on and the game goes into attract mode. Also when it kicks into attract mode some of the coils fire for a few seconds like the slings etc but then stop.
Try to unplug your sound board and then power on.
