The first electro Mechanical I bought was a magic screen Can Can Bingo four years ago. I got it home and that was the first time I looked inside anything electro mechanical...wow!With the information below I was able to strip it down and rebuild it and it works flawlessly now.
Here is the two things I recommend:
1. I was able to understand the games following information on this wonderful site. Make a favorite and read everything. It's Phil Hooper's site.
http://bingovideos.cdyn.com/
2. I was able to fix the games; find faults, fix scoring, un stick occasional screen sticking only because of the clear repair videos prepared by Richard Gerlitz. There are other tutorials but I did not need anything more than what I mention here.
For the videos I downloaded from his site but there are some DVD's on sale that seem a great deal and cheap for what it is. opies of the DVD's are on sale on Ebay $39.95 with free shipping.
ebay.com link >> Bally Bingo Pinball Repair Guide Dvd Set 11 Volumes High Quality Close Ups
Here is what is on the video's
Volume #1; Bally Main Course 29 Minutes
* Nature of Game
* Theory of Operation
* Component Identification & Explanation
* Common Adjustments & Trouble Spots
* General Lubrication- Playfields & Shutters
* Ball Return & Mechanisms
* Trough Switches
* Front Door Adjustments
Volume #2; Points & Relays, 28 Minutes
* Simple 1 Switch Circuit
* Switch Blades
* Switch Stacks
* NC-NO-SPDT Switches Explained
* Adjusting & Cleaning Points
* Relay Types Explained
* Repairs & Trouble Spots
Volume #3 Solenoids & Steppers, 24 Minutes
* Operation Explained
* Replacing Coils & Coil Stops
* Steppers Explained
* Disassembling & Cleaning
* Disc & Finger Alignment
* Spring Adjustments
* Wiper Tension
* Early & Late Designs
Volume #4; Control Unit, 36 Minutes
* Component Identification &Explanation
* Lubrication- Leather Clutches
* Drag Arm Switches
* Control Cams
* Replay Cams
* Search Index
* Search Disc
* Critical Adjustments
Volume #5; Mixer & Spotting Unit, 23 Minutes
* Pulse Switches
* Mixers- Mixer Latch Assembly's
* Mixer Latch Coil & Stop- Spotting Disc
* Clutches
* Critical Score Extra Step Adjustments
Volume #6; Ball Lifter & Shutter Motors, 6 Minutes
* Stuck Armatures
* Stripped Gears
* Linkage Adjustments
* Early & Later Designs
Volume #7; Replay Counter & Reflex Units, 8 Minutes
* Explanation of Operations
* How to Adjust
* Damage from Operators
Volume #8; Feature Units, 40 Minutes
* Game Features Explained
* Select a Lit Number
* Odd or Even- Magic Pockets
* Bump Feature
* Magic Lines
* Turning Corners
* Chain Game Magic Lines
* Screen Games
Volume #9; Short Circuits, 21 Minutes
* General Overview of Short Circuits
* Location of Common Causes of Shorts
* Circuit Interrupters to Locate Short
* Circuit Isolation to Diagnose
* Tracing on Schematic
* Manual Operation of Game
* Photo's/Tips Etc...
Volume #10; Serious Problems, 47 Minutes
* Burned Field Windings
* Broken Plug Pins
* Broken Plug Receiver
* Binding Magic Screen
* Stripped Magic Screen Motor
* Burned or Chewed Wiring
* Damaged Light Sockets
* Broken Search Wiper Hub
* Worn Cams
* Burned Wiper Disc
* Broken Wire in Harness
* Burned Trip Bank Coil
* Broken Wiper Blade
Volume #11; Manual & Schematic, 43 Minutes
* Wire Color Codes
* Symbols- Schematic Location Codes
* Pictorial Views Explained
* Locating Components
* Light Circuits
* Motor Circuits
* 50 Volt Coil & Replay Circuits
* Payout Circuits
* Practice Troubleshooting