Here are some documents on specific, and generic repairs and technical information written by me.

Pinball:

Repairing the Playfield Wear on The Shadow's Magnet Lock

Twilight Zone Clock "Ball Jam" Modification (NOT For Heat Problems)

Replacing Twilight Zone and WhiteWater (hard to find) targets with Happ Controls (easy to find) targets

Details on the Addition of Ramp Flaps to Stern's Monopoly Pinball

Video:

Mirror of decrypted ROMs for the Sega System 16 and System 18 suicide boards that utilized the FD1094 chip.

Mirror of Pac-Man PCB/Board Troubleshooting by Picture originally from ArcadeGameOver.com site.

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