Replace the whole display, not just the glass

A bare glass can be fitted to the old display board only on the older pin-style glasses; displays from 1993 on don't use pins, so their glass can't be swapped. Even on pin-style displays, resoldering around 164 pins is hours of fiddly work, so fit a complete display and board.

Systems

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

Related tips

• Missing rows or columns on a pin-style display
• Display shows garbage or nothing though the glass is fine
• +5 V or +12 V missing at the display
• Dot matrix display supply voltages
• The two negative display voltages must be 12 V apart
• Display voltages low: display or HV section?
• Gas discharge displays need high voltage
• Random vertical or diagonal lines: 12 V missing at the display

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