Scope.
This document is a repair guide for DataEast and Sega pinball games made from 1987 (Laser War) to 1995 (Batman Forever). Sega games are included from 1994 to 1995 as Sega bought DataEast in 1994.

Table of Contents

1. Getting Started:
1. Introduction to DataEast/Sega Pinball
2. Experience, Schematics
3. Necessary Tools
4. Parts to Have On-Hand
5. Different Board Generations
6. Game List
7. The Circuit Boards and How They Work
8. Using the Internal Adjustments, Audits & Diagnostics

2. Before Turning the Game On:

1. Check the Fuses, Fuse Clips
2. Burnt Connectors
3. Quick and Easy Transistor Testing
4. Relays and Playfield Device Driver Board Problems (Cold/Fatiqued Solder Joints)
5. Should the Game be Left Powered On?

3. When Things Don't Work:

1. Replacing Components
2. Checking/Fixing Transistors and Coils
3. Game Resets (Diodes, Filter Caps, Bridge Rectifiers, Power Supply) and Strange Game Behavior
4. Power-On CPU LEDs and Sound Beeps
5. CPU Diagnostic Test EPROM
6. CPU and Display EPROM versions
7. Fixing a Dead CPU
8. Problems with Flippers
9. The Lamp Matrix
10. The Switch Matrix
11. Ball Trough Problems & Optic Switches
12. Score Display Problems
13. Memory Error (Open Coin Door)
14. Sound Problems

4. Finishing Up:

1. Rebuilding Flippers