How to tell which WPC generation a game is

WPC Alpha-Numeric (Funhouse to The Machine BOP) has 16-digit alpha displays and no Fliptronics or dot matrix controller board. WPC Dot Matrix (Terminator 2 to most Party Zone) adds the DMD controller but still has no Fliptronics board in the upper left of the backbox. WPC Fliptronics runs from Addams Family to Twilight Zone. WPC DCS starts with Indiana Jones and uses the DCS sound board. All of these are grouped as WPC-89.

Systems

• WPC Alpha-Numeric
• WPC Dot Matrix
• WPC Fliptronics
• WPC DCS
• WPC-Security (WPC-S)
• WPC-95

Related tips

• Games by generation: WPC-95
• Games by generation: WPC-Security

Source: Repairing Williams/Bally WPC Pinball Games from 1990 to 1999, Part One, Clay Harrell (pinrepair.com)