A flash lamp does not flash.
Flashers out on any System 11 game: R2 desoldered itself
Cause: The R2 resistor (usually 5 ohm 10 W) in its circuit gets hot enough to melt its own solder joints, or falls off from vibration.
Checks
- Check the bulb, then inspect and measure R2 for that flasher.
Fix
- Resolder or replace R2 with the same value and wattage.
Systems
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Source: Repairing Williams System 11 Pinball 1986 to 1990, Part Two, Clay Harrell (pinrepair.com)