(Topic ID: 262945)

Question - Slugfest CPU Connection Repair

By Pclusk

34 days ago

Topic Stats

  • 6 posts
  • 3 Pinsiders participating
  • Latest reply 30 days ago by Pclusk
  • No one calls this topic a favorite


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There have been 9 images uploaded to this topic. (View topic image gallery).

Williams Connector Rebuild Kit 02 (resized).jpg
Williams Connector Rebuild Kit 01 (resized).jpg
Crimping Tool (resized).jpg
New Molex Connectors (resized).jpg
CPU Board Example 04 (resized).jpg
CPU Board Example 03 (resized).jpg
CPU Board Example 01 (resized).jpg
CPU Board Example 02 (resized).jpg
Rotterdog CPU 01 (resized).jpg

#1 34 days ago

I am completely new to ownership and maintenance of any pinball machines... My terminology may be completely inaccurate, I apologize if this is the case...

I recently purchased a Williams SlugFest cabinet and am attempting to repair some wire connections on the CPU. The CPU was changed by the previous owner for a Rotterdog CPU (Williams WCP98 CPU Board; Part Number MPU089). On the board there are what I now believe are called 'IDC connectors'. These connectors I believe are causing some issues with the functioning of the equipment. As a result I purchased what at the time I believed would be the correct part to resolve the issue (https://www.marcospecialties.com/pinball-parts/CKWMS-A-12742) however after the parts arrived I discovered that they do not appear to be what are currently on the board. I also purchased a 110 punch down tool thinking that it may be able to get the wires landed properly.

If anyone could point me in the right direction for what parts/tools I need to purchase to fix these issues, and/or any general advise for resolving the problem as I have never worked on any boards like this before, I would greatly appreciate it!

CPU Board Example 01 (resized).jpgCPU Board Example 02 (resized).jpgCPU Board Example 03 (resized).jpgCPU Board Example 04 (resized).jpgRotterdog CPU 01 (resized).jpg
#2 34 days ago

For sure you need to redo those connectors. You have IDC connectors on the game now. You bought Molex connectors from Marco. Most people would say that the Molex connectors are better and more reliable. Not too hard to do with a crimper.

#3 34 days ago

Youtube has videos on how to crimp.

Ed has toold and parts - https://www.greatplainselectronics.com/

LTG : )

#4 34 days ago

After crimping the wires and getting them into the female ends of the molex connectors, how does one attach them to the board? Is the connector holding the IDC connector in the same male end or would one need to somehow remove the old male end and replace it with a new molex male end?

#5 34 days ago

The Molex connectors will be the female end attached to the wires that will then plug into the male header pins on the board

#6 30 days ago

Thank you for all of the advice! With your advice and the help of this 'Re-pinning Pinball Connectors' video,

I was able to fix the issue! New Molex Connectors (resized).jpg

The necessary tools & parts were: I used the 'HT-225D Full Cycle Ratchet Crimping Tool with interchangeable die set HT-225D', available at amazon.com link »Crimping Tool (resized).jpg and the Williams CPU Connector Re-build Kit, available at https://www.marcospecialties.com/pinball-parts/CKWMS-A-12742.Williams Connector Rebuild Kit 01 (resized).jpgWilliams Connector Rebuild Kit 02 (resized).jpg

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