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johnorun

Joined: 04 Apr 2008 Posts: 3364 Location: Chicago, IL- US
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Posted: Sun Mar 01, 2026 2:01 pm Post subject: (UPDATED) How to repair damaged MCS-4 Test Board socket? |
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UPDATED: (Pictures now Uploaded)
I have an MCS-4 Evaluation Test Board with a broken pin stub stuck in a 16 pin socket hole. Is there any method to remove the pin stub from the socket hole?
Desoldering the socket would be difficult without damaging the Board.
The stuck pin wiggles when touched with the point of a needle, but there is no way to grab onto it.
Thanks for any help.
- John O'C. _________________ My collection list (growing) http://johnorun.x86-guide.com/en/collection.html
Last edited by johnorun on Sat Mar 14, 2026 5:36 pm; edited 3 times in total |
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cuttingedgecs
Joined: 08 Oct 2017 Posts: 1764 Location: Australia
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Posted: Sun Mar 01, 2026 6:42 pm Post subject: |
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| Most DIP sockets are somewhat spring loaded. You might be able to push something slightly wider than the pin in the hole, so the socket no longer is gripping it and turn the board upside down so the pin falls out? |
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johnorun

Joined: 04 Apr 2008 Posts: 3364 Location: Chicago, IL- US
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Posted: Mon Mar 02, 2026 7:36 pm Post subject: |
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| cuttingedgecs wrote: | | Most DIP sockets are somewhat spring loaded. You might be able to push something slightly wider than the pin in the hole, so the socket no longer is gripping it and turn the board upside down so the pin falls out? |
Thanks, but I tried this and no luck. pin wiggles some when prodded, but it won't fall out when upside down. _________________ My collection list (growing) http://johnorun.x86-guide.com/en/collection.html |
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johnorun

Joined: 04 Apr 2008 Posts: 3364 Location: Chicago, IL- US
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Posted: Mon Mar 02, 2026 7:47 pm Post subject: |
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I just tried to upload some pictures to illustrate the issue, but when I choose a file and click on "Add Attachment" nothing loads!
Can pictures be uploaded from an Android cellphone?? _________________ My collection list (growing) http://johnorun.x86-guide.com/en/collection.html |
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rjluna2
Joined: 27 Oct 2014 Posts: 1302 Location: Hiram, GA, USA
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Posted: Tue Mar 03, 2026 8:13 am Post subject: |
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| They are working on fixing the problem. |
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johnorun

Joined: 04 Apr 2008 Posts: 3364 Location: Chicago, IL- US
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Posted: Sat Mar 14, 2026 5:39 pm Post subject: |
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I just uploaded pictures of the socket with the stuck pin.
Had a problem uploading until today.
I still need suggestions on my options to repair the problem. _________________ My collection list (growing) http://johnorun.x86-guide.com/en/collection.html |
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crazybubba64

Joined: 03 Jul 2018 Posts: 1371 Location: WI, USA
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Posted: Sun Mar 15, 2026 9:02 am Post subject: |
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You mentioned that desoldering would damage the board. Could you share pictures of the solder joints on the connector?
Depending on what you are willing to invest into this (and if you're willing to tolerate a different chip socket) you may want to pick up a desoldering gun. (Otherwise I've got one and could help you out if you'd like) _________________ My collection |
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cuttingedgecs
Joined: 08 Oct 2017 Posts: 1764 Location: Australia
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Posted: Mon Mar 16, 2026 5:41 am Post subject: |
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| Maybe hot glue? Put a dab on it and once it dries, pull it away from the board. The socket should stay in place, and it might be just enough to grip the pin and pull it forward enough so you can grab it with your pliers. |
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cuttingedgecs
Joined: 08 Oct 2017 Posts: 1764 Location: Australia
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D.8080

Joined: 03 Apr 2006 Posts: 1474 Location: Italy
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Posted: Mon Mar 16, 2026 9:25 am Post subject: |
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I have nothing to do and my ideas could be very wrong, sorry if I don't help in the end.
Mechanically:
1. you have space around the pin
2. you need some thin sheet to wedge it out
3. almost impossible as it would be not rigid enough to allow any real transfer on the pin but could still work e.g. stuffing it with aluminum foil? see below with my unskilled physics basics.
Glue:
1. the pin is an alloy of gold + copper?
2. find glue that bonds on copper
3. add some on the edge of some copper wire
4. try and repeat until it'll come off (I mean it could take a lot of times)
Cold:
1. use some spray dry ice on the pin
2. both the pin and the adjacent socket walls will contract
3. use hot gun to allow expansion of the pin, top down
4. maybe it'll expand out of the socket, like rocks falling of a cliff
or
1. add water inside
2. cool down with dry ice
3. ice expanding from below could push it up |
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berni
Joined: 17 May 2011 Posts: 59 Location: Germany
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Posted: Tue Mar 17, 2026 1:35 am Post subject: |
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| If you just want to make the board operable again, you can solder another socket on top of the old one, without removing anything... Bernhard |
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