Quoted from Djshakes:Hi All, My F14 started resetting. I have read bad diodes can cause this. I replaced the diodes on one flipper coil. The others look fine. It resets when I first turn on the game for about a minute or two...especially when double tapping the flippers.
Just so you know, sometimes you CAN tell if a diode is bad by looking at it (i.e. it will be crumbling, or cracked) but visual inspection of a component doesn't tell you much if anything about if it's good or not.
I agree with wayout440 that it's more likely to be power supply and connector related though. 32 years for a filter cap is a long time.
Vandalia, OH
