Where the flash lamp resistors are by era
Before Big Guns: on small boards under the playfield. Big Guns, Space Station and Cyclone: moved to the backbox, and the 330 ohm pre-warm resistor was dropped. Banzai Run and later: on the interconnect board, with only R2 used.
Systems
Related tips
- Double flasher circuits barely light: new interconnect board has 5.6K resistors
- One topper dome flasher pair dead while its shared knocker works: broken wire
- Banzai Run: interconnect board flash resistors
- Flash lamp dead on an early System 11 game
- How the System 11 flash lamp circuit works
- Dim GI and backbox lamps: GI relays swapped for boards that were miswired
- Flashers out on any System 11 game: R2 desoldered itself
- Lamps under the slingshots out: wire in the wrong position in interconnect plug J12
Source: Repairing Williams System 11 Pinball 1986 to 1990, Part Two, Clay Harrell (pinrepair.com)