Quoted from ChrisHibler:
Black probe power clip onto negative lead of C31, the filter cap adjacent to J210.
Red probe power clip on positive lead of C31.
Touch the end of your probe. red/green lights on probe should react and perhaps an audible buzz.
Probe pins 11-18 of U20.
Each pin should be pulsing.
If not, probe pins 1-8. Any pin not pulsing will have a broken trace between U20 and the supplying chip.
Chris Hibler - CARGPB #31
http://www.PinWiki.com - The Place to go for Pinball Repair Info[quoted image]
Positions 11 & 16 on the output, 3 & 8 on the input did not pulse.
J206/207 position 3, no pulse.
Pulled the board off to inspect and found this:
Looks like a possible errant bridge between Resistors 70 & 71, kind of hard to tell, but the resistance on both checks out. Continuity from J206/207 to U20 then from U20 to U14 also checks out which leads me to believe that maybe I fried U14 too, so I checked it with my DMM and it looks like position 5 has a short, which correlates with no pulse positions on U20 and J206/207. So I’ll get to replacing it as well and cross my fingers