I have a Bally Wizard! That has a couple lamp issues.
I cleaned the bonus unit and the issue has narrowed to bonus lights 5000 - 8000. They will light but go out before stepping up. Before cleaning it was all the bonus lights before the 10,000 mark. Past the 10,000 bonus all the lamps light and stay lit as they should. Looking at the schematic it seems the lamps are controlled by the bonus unit. The spider and switch contacts have been cleaned and look to be adjusted properly.
The second instance of this is with the 4th flag indicator lamp at the right top of the playfield and the indicator lamp at the 4th flag target. They both light when the flag resets but only for a second then go out. Per the schematic they are controlled by the 4th flip relay. The contacts have been cleaned and look to be adjusted properly.
Any advice is appreciated.
Thank you.