How Data East solid state flippers work (Robocop on)

From Robocop the flipper board feeds the single-winding coil 50 V for a fixed 40 ms after the button closes, then drops it to 9 V to hold. Only a 1N4004 is used on the coil. The pulse time is not adjustable and, unlike Williams, does not depend on an EOS switch. Service bulletin 49 covers the design.

Systems

• Data East CPU Version 1/2
• Data East CPU Version 3
• Data East/Sega CPU Version 3b

Related tips

• Flipper stuck up with power on (Playboy and later)
• Solid state flippers, Robocop and later
• Single-winding "Deger" flippers on Playboy and Monday Night Football
• Solid state flipper board versions
• Solid state flipper boards are in the cabinet, not the backbox
• Solid state flipper flutters when held
• Solid state flipper does not work: fuses and fuse clips
• Testing the diodes on a flipper coil

Source: Repairing DataEast 1987 (Laser War) to Sega 1995 (Batman Forever), Part One, Clay Harrell (pinrepair.com)