Flipper coil resistance readings
With the game off: on a three-lug dual-wound coil (Time Machine and earlier), common lug to thick-wire lug should read 4-6 ohms (power winding). Common to thin-wire lug reads close to that with the flipper at rest, rising to about 160 ohms when the flipper is pushed to full stroke and the EOS opens; more than about 5 ohms at rest means a pitted EOS. On single-winding coils (Playboy on) the two leads should read 4-6 ohms. On dual-wound coils the hold winding fails more often than the power winding.
Systems
Related tips
- Expected resistance of common Data East/Sega flipper coils
- Flipper coils 090-5020-02 and 090-5020-20
- Replacing a flipper coil
- Diode direction on three-lug flipper coils
- Measuring voltage at a solid state flipper coil
- Reading Data East / Stern flipper coil numbers
- Flipper coil runs very hot (Time Machine and earlier)
- Solid state flipper has no power though fuses are good
Source: Repairing DataEast 1987 (Laser War) to Sega 1995 (Batman Forever), Part Two, Clay Harrell (pinrepair.com)