# Specifications and Diagnostics Specs: * System type: WPC-95 * Year: 1996 * Model: 50052 * Units Produced: 3,013 ![[WPC-95-Backbox-Screen-Shot-2021-07-29-at-1.41.55-PM-e1627581423155.png]] ## Power Board ![[Pasted image 20240615234528.png]] ## Useful Write-Ups [Troubleshooting Williams Bally WPC Pinball Machines -](https://homepinballrepair.com/troubleshooting-williams-bally-wpc-pinball-machines/) [Williams WPC - PinWiki](https://www.pinwiki.com/wiki/index.php/Williams_WPC) [Flippers.be - Pinball Basics - WPC Interlock circuits, COIN DOOR IS OPEN COILS AND FLASHERS ARE DISABLED](https://www.flippers.be/basics/101_interlock_switch.html)