I have a Demolition Man that has been in good working order until recently. When I try to play the game, it will power up and start the game without issue. After ~10-15 seconds of game play, the power cuts out completely for 5-10 seconds and than comes back on again. Any ideas on what to look at first.

#2 2 years ago

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ForceFlow

Pinside Moderator

9y 238K 31,358 268 14

Is there any battery damage on your MPU?

Game reset troubleshooting guide:

https://www.pinwiki.com/wiki/index.php?title=Williams_WPC#Game_resets

#3 2 years ago

???

catalina

Pinside+ Frequent

Chardon, OH

10y 34,900 60 4

No damage on the MPU. Batteries are in remote holder.

Has a Rottendog MPU and DMD controller boards.

No visually apparent swelling on any caps.

I will see if the guide you recommended can steer me to the answer. Thank you.

#4 2 years ago

LTG

Pinside member

Hopkins, MN

12y 191K 56,966 24 7

Unplug the game. Inside the cabinet by the rear wall. Pull back the rubber boot over the electrical hook up coming into the game. Be sure the lugs are clean and on tight.

Power cord tight in wall and rear of the game ?

LTG : )

#5 2 years ago

BUZ

WH20_Buzz

Inactive member

Robina

7y 21,900 131

Check and post all the Driver Board Power Supply voltages first

#6 2 years ago

???

catalina

Pinside+ Frequent

Chardon, OH

10y 34,900 60 4

Quoted from ForceFlow:
Is there any battery damage on your MPU?
Game reset troubleshooting guide:
https://www.pinwiki.com/wiki/index.php?title=Williams_WPC#Game_resets

I worked through the list in the troubleshooting guide and got to the reseating all the connectors on the boards and it appears like the issue may be gone. I will try again soon with the machine cold again to make sure it isn't a failed thermistor.

Thanks for the advise all.

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