Heres some helpful information!

#General Slot Machine Stuff New Life Games Forum, they do have a large and active community to help solve most, if not all your slot machine questions and issues

#Bally

Bally Periodic Maintenance Guide - General maintenance procedures for a variety of slot machines

Bally Peripherals - Guide to Bally peripherals

Bally Parts Reference - Overview of Bally slot machine parts

#EVO

EVO Hybrid Setup - Includes menus and system setup instructions

EVO Hybrid Parts and Hardware - Parts and hardware information

EVO Hybrid Progressives - How to setup progressive jackpots

EVO Hybrid Wiring - Complete wiring diagrams

EVO Hybrid to Alpha Conversion - Instructions included with Alpha conversion kit

#V7200

V7200 GameMaker Setup - Includes menus and system setup instructions

V7200 GameMaker Parts and Hardware - Parts and hardware information

V7200 GameMaker Progressives - How to setup progressive jackpots

V7200 GameMaker Wiring - Complete wiring diagrams

#Mastercom

Mastercom 250 Manual - Setup and configuration guide

#ProSlot

ProSlot 5500 Setup - Includes menus and system setup instructions

ProSlot 5500 Parts and Hardware - Parts and hardware information

ProSlot 5500 Schematics - Very detailed look at the complete electrical system

ProSlot 5500 Wiring - Complete wiring diagrams

#IGT S2000 Mechanical Parts guide (Uprights) - Great for looking up a specific part number.

S2000 VISION Software Setup - Contains the menu options, key, and clear processes for S2000 slot machines

#GameKing SoftWare

GameKing SoftWare Manual, could be helpful