Hi ... Having a problem with my BLACKOUT by Williams ... Didn't have any sound but got most sound going now (think it was a combination of a dirty DIP switch on Sound Board and a "loose" wire connector) ... All sounds working now except the when the Drop Targets go down > then don't make any sounds. I have the schematic but am not smart enough to figure out which wires to the sound board would control this (guessing same ones that carry signal for other sounds???) ... or which ROM chip is responsible for the Drop Target sounds. Don't want to "fiddle" with just anything and take a chance on making things worse ... Thank You for any help !