Background: Alltech board. Light board, solenoid/driver board, displays, all work and tested working properly in another game. Resistors attached to sockets. Game has Comet 2smd leds.

When you hit the flippers or a coil is activated on the game, about 50% of the time the controlled lights flicker on and off briefly. Would this be a problem on the rectifier board? Any ideas?

Thanks!

Backbox and playfield - all controlled lights will pulse on/off quickly once at the same time. So it’s one, quick flicker. Also note: lights that should be lit stay lit like normal. It’s the unlit bulbs that pulse on/off once. It’s not just the flippers that cause it, it’s any coil - and somewhat random. For example: during action between the pop bumpers it usually happens when the first bumper is hit, but not again until there is a short break in the action and then another coil is activated.

Flippers were just rebuilt, so end of strokes are new and gapped properly.

I’ll check voltage when I get home.

Thanks!

Yes. I started the prep work for an overlay and repaired the boards and rebuilt/bulletproofed the power supply - using another game to test the boards. I figured the problem would disappear once the boards were all working 100%. That's why I questioned the Rectifier Board. I have a rebuild kit arriving Monday, as that was the only board not serviced and brought up to current on standards.