Book excerpt: This publication contains the course material for the Two Day Intensive Course - Video Games, How They Work & Troubleshooting. The information in this book includes user friendly system diagrams for Daytona Twin, Sega Rally Twin and Deluxe, Namco Alpine Racer, NRI and Microcoin S5 and S6 coin acceptors, Sunrise Universal Credit Board and more... Those who worked with the bad copies of the Sega wiring diagrams for Daytona, Sega Rally etc. will agree how challenging it can be to find a simple connection for the accelerator or the break pot etc. The diagrams provided in this publication make this task easy!