WPC switch numbers give the column and row

On WPC the first digit of a switch number is its column and the second its row, so switch 31 is column 3, row 1. For help on one switch, enter the single switch test, move to it with the + and - buttons and press credit.

Systems

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

Related tips

• Reading WPC switch numbers and the switch test display
• A whole switch row or column is dead
• Testing CPU switch rows and columns with a diode and clip lead
• WPC flags a bad switch at power-on
• WPC direct (grounded) switches
• "Check Switch ##" message
• WPC switch matrix basics
• Switch columns to U20 pins

Source: Pinball Machines: How They Work & Troubleshooting, Norbert Snicer