Demolition Man

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Manufacturer System Year Model Produced
Williams WPC-DCS Sound 1994 50028 7,019

Game-Specific Issues

The Demo Man Cryo-Claw can sometimes be problematic.

At game boot, proper behavior is for the elevator to run through a cycle, then the cryo-claw will move all the way to the right (into the position to pick a ball from the elevator) and then move all the way to the left.

A-16986, The Demolition Man Cryo-Claw motor "end of throw" PCB.


The cryo-claw motor knows when it is at the "end of throw" via two cams and two optos, which are shown on the board at left (Williams part number A-16986). Fractured solder joints on the optos are sometimes an issue, and the 470 ohm 1/2 watt resistors take a lot of heat. Fractured solder joints on the .100 right angle header is also a problem sometimes.
Return to Williams WPC page.