Replaced all 3 pop bumper bodies today. Everything went smooth and the game played just fine. After playing for about an hour I turned the machine off. came back about an hour later, started playing a game. I noticed that the ball return switch is not actuating..(game wont start) hmm.. so I pull the ball out of the hole and place it on the trough switch. now the game sets and flipper work. Then I notice that all the rollover lights that are supposed to be off until you actuate them are all" ON' and once the ball rolls over them they turn off.. This is the opposite of what is supposed to happen. Also, the drop targets are not scoring at all and none of the round target switches are scoring. But the rollover switches still score even though they are opposite with the lights.
I know your supposed to trouble shoot one issue at a time but Im not sure which issue to start looking at.. Maybe some help from the experts here would be a real help to me..