The game is dead after a storm, with the line fuse blown.

Game dead after a lightning strike or surge

Cause: A surge shorted the MOV across the line filter in the power box beside the coin box, which blew the line fuse. Damage past this is very rare.

Checks

• Check the line fuse and the green MOV disc soldered across the line filter lugs.

Fix

• Fit a new MOV and a new line fuse together: 130 or 150 V in North America (115 V mains), 275 V for 220/240 V mains. Too low a rating means frequent replacement.

The power box carries line voltage. Unplug the game before opening it.

Systems

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

Related tips

• WPC-95: regulated 12 V fuse F101 blows
• WPC-95: all the 20 V coils dead, fuse good
• Main cabinet fuse blows instantly after a power surge: shorted varistor
• Check fuses F106/F101 with no lamps and no game start: shorted bridge diode
• Main fuse in the power switch box blows at switch-on: shorted varistor
• Driver board LED4 off (+5 V missing, game will not boot)

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