Scottsdale, AZ
The only tri-level game from Bally.
None of the insert/controlled lights were working also the playfield GI was out.
There is not much to the controlled lighting circuit. Simply a bridge a fuse and fuse clips and some connectors. This goes to the lamp board and the lamp board is controlled by some MPU signals. The owner had just put in an Alltek CPU and lamp board so we can assume for now that those are OK.
Checked the fuse and the fuse is OK, fuse clips were blackened so those were replaced. Checked the bridge with the power off and the two AC circuits are shorted. Replacing the bridge brought back all of the controlled lighting. As for the playfield GI, there is no playfield GI on this game. All playfield lights are controlled lamps.