Where WPC games use opto switches

Fliptronics flipper buttons are opto switches (added part way through Addams Family production, so early Addams games lack them). Clear ramps often use opto ball switches. Every WPC-DCS (1993) and later game senses trough balls with optos.

Systems

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

Related tips

• How WPC opto switches work and which half fails
• Opto styles used in WPC games
• Testing optos in switch edge test
• Flipper cabinet opto switch boards
• Some WPC-95 optos can fail even when they test good
• Opto switches dead all at once
• Opto does not work: check 12 V at the transmitter connector
• WPC-95 five-leg Schmitt trigger U optos

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