Look at the lower right corner of the schematics Sheet 1 of 4 - there's the common part between the flipper relay and the special solenoids. They're ALL locked on. Disconnect the special solenoids connector so you don't keep blowing fuses. 1-j19 for the grounds and 1-j18 for the inputs. This will also let you take a logic probe and probe every part of the circuit from that common point backwards (and forwards if needed) to see where the problem might lie.
Did you get under the chips to fix the corrosion as well?
Pulaski, PA
