Seven of the game's flashers barely flicker while one or two work normally; swapping or flipping bulbs makes no difference.
Most flashers only flicker faintly: broken wire on a playfield bus strip
Cause: Under the playfield, a thin metal bus strip that carries a shared feed to several flashers had its staple break, and one of the two wires soldered to the strip had pulled loose.
Checks
- Measure the voltage at the dead flasher sockets.
- Work out which flashers share a common feed and follow that wire under the playfield; look closely at bus strips and staples for a loose or broken wire.
Fix
- Resolder the broken wire to the strip and re-secure the strip so it can't pull loose again.
Systems
Games
Related tips
Source: Pinball Repair help group!! (Facebook group)