Details:
Williams Firepower 1980 System 6
Original boards
No corrosion on the boards, battery pack installed
No burnt smells
Machine was working great up until last week when I decided the kicker switches required adjustment, they were lazy and machine gunning. In the process of adjusting the switches the left kicker coil stuck on. I immediately shut down the game, checked and isolated the switches with folded paper, coil still stuck on. Diagnosed the circuit, found faulty transistor, replaced it and kicker coil working as it should.
While board was on the bench I reflowed the 40 pin connector and a couple of 9 pin connectors that looked suspect.
Problem 1
Right flipper no longer works
- Coil not activating
- Flipper leaf switch cleaned and gapped
- checked the transistors, resistors all good
- Installed Siegecraft "Output Tester" at 2J12 and find Pin 1 & Pin 2 locked on. (Pin 1 Right Flipper Enable & Pin 2 Left Flipper Enabled) locked on.
- Stumped!?
Ran diagnostics, no switches stuck on.
Problem 2
Soundboard blowing F1 slo-blo fuse (4 amp) as soon as game turned on
- Showing -14v to F1 lower fuse holder.
- Monkeying around (installed heavier fuse) now I have feedback no sound
Push the sound diagnostics no change.