Sorry for the delay on responding. I work 18 hour days thru the week. I’m off now so this is where I am at.
Fixed the scoring issue with the flipper. I had the playfield straight up and when I hit one of the flippers it would make a switch behind the left slingshot close. So I adjusted it to about an 1/8”. That issue is fixed.
Ran the solenoid test. The outhole solenoid isn’t firing which is number 02. No voltage going to it when activated. The switch for the outhole also fires the top left thumper bumper.
The Post Down solenoid which is number 11 doesn’t pull the post down. Checked voltage none going to it. Instead of firing Post Down it fires the top left thumper bumper.
The Saucer or 04 solenoid doesn’t fire instead the drop target fires and the fires again when it is the drop targets time which is number 10 in test mode.
On the A2 Transformer board I found a broken plastic connector on J3. The yellow wire at J3-9 was arching. Also found a terminal arching J3-12. I replaced the connector and all terminals. So far that is all that I have found.
To rule out SDB I pulled the one out of my Silverball Mania that works fine. Didn’t make a difference.