(Optional) Manually set the player one score reels to anything other.Make sure coin door switches are not stuck closed!.Check that there are credits on the credit wheel.Just inside the coin door opening that attaches the coin door to the bottom relay panel. Make sure the coin door is plugged in (especially if a Gottlieb game).See the Check Fuses section.Ĭheck the fuse holders too, especially on Bally games. Multi-meter (DMM) on the input side of the transformer. Thirty year old (or older) power cords can easily have breaks in them. Verify there is power at the wall outlet, and that power is getting to the transformer.Verify the power outlet the game is plugged into works.So you're the impatient type, and couldn't stand to wade through all the above When Thing Still Don't Work: The Check List Coils Explained: Coil Power and Size, Testing Coils, Low Resistance Coils, Big Blue Sparks, Rewinding Coils, Coil Equivalentsģa.Gottlieb Coin Doors and Flipper Buttons: the Shocking Truth.Reading Schematics 2 & Fixing Game Features.Gottlieb Reset Bank, Ax/Bx Relays, Continuous Duty Relays.Midway Motorized Score Reels (1965-1975).Score Reels & Score Reel Relays: Checking, Adjusting, Cleaning.Switch Contacts: Checking, Adjusting, Cleaning.Video: Various Stepper Units used in EM games.Stepper Units: Checking, Adjusting, Cleaning.Plug Connectors Cleaning & Dim/Bad Lamp Sockets.Lubrication & Why Contact Cleaner/WD-40 are BADĢ.Intros, Bibliography, Systematic Repair Approach.This document is part one of three -įor parts, schematics, and repair sources please see the Updates of this document are available at (Well at least up to, but not necessarily including, part 3.) The document should be read "top down" and in
No experience is assumed, though basic electrical knowledge is This document is geared towards complete beginners. Though pinball is stressed the most in this document, this informationĪpplies to most EM arcade games made from the 1930s to 1978.Įlectro-Mechanical (EM) means the game uses relays and switches, This includes pinball games, pitch and bats (baseballs),īowlers, gun games, etc. This document is a repair guide for Electro-Mechanical (EM) coin operated (Especially TOP1 which covers EM pinball game repair.)Īll text and pictures copyright by (Clay Harrell),Ĭopyright 1998-2022, all rights reserved. PINBALL Repair EM Electro Mechanical Arcade Games (pinball, pitch and bat, bowlers), part three Support this Pinball Repair Website! (It costs money to provide this information.)ĭonations are being accepted, please see /donate for details,Īnd/or please purchase the /top repair instructional videos.
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