Broken leg on IC Socket

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Sonic Sitar
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Broken leg on IC Socket

Post by Sonic Sitar » Sun Jun 28, 2020 8:25 pm

Was nearing the end of a Befaco Rampage build when this happened...
20200628_170630.jpg
The leg popped out of the IC socket and the entire thing is already soldered onto the board.
Did I just wreck my build? Am I going to have to desolder this and replace the part?
Help! :hail:
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Eloc
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Re: Broken leg on IC Socket

Post by Eloc » Sun Jun 28, 2020 9:11 pm

Do you have a spare IC socket? and is the pin of the broken metal part soldered into the board?

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Abyssinianloop
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Re: Broken leg on IC Socket

Post by Abyssinianloop » Sun Jun 28, 2020 9:24 pm

Do you have the leg? You may be able to clear the hole and insert it as is. Otherwise, replace the socket. You may want to practice desoldering on some scrap. Techniques vary depending on what tools you have.

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Sonic Sitar
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Re: Broken leg on IC Socket

Post by Sonic Sitar » Sun Jun 28, 2020 9:27 pm

I bought some desoldering wick and spare 14 pin sockets on Amazon.
I have the leg but I can't seem to get it through the socket to reach the joint.

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Grumble
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Re: Broken leg on IC Socket

Post by Grumble » Mon Jun 29, 2020 1:06 am

IF all of the above fails, you can take a thin piece of wire, push it thru the pcb hole, solder it to the pcb, insert the ic and solder the wire to the ic pin.

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Abyssinianloop
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Re: Broken leg on IC Socket

Post by Abyssinianloop » Mon Jun 29, 2020 12:16 pm

Grumble wrote:
Mon Jun 29, 2020 1:06 am
IF all of the above fails, you can take a thin piece of wire, push it thru the pcb hole, solder it to the pcb, insert the ic and solder the wire to the ic pin.
This is a really good idea, and the path of least wear and tear on your board.

It can be tricky to completely clear all those joints to be able to remove the socket in one piece. Often, people work on a joint repeatedly and too much heat and pressure ends up lifting the pad.

If you are determined to remove the socket, make sure to add a bit of solder to help the old solder flow really well as you attempt to wick it out.

If you make an attempt and see that only half the solder came out, add solder again, as you'll have a better chance removing a full joint all at once than a tiny bit stuck down in the hole.

And if you think you've got a hole cleared, there may be the tiniest solder coating the pin and holding it to the side of the through-hole. Clean your iron tip completely by wiping it on a damp sponge, then push your dry iron tip against the pin to free it from the wall. Sometimes using an exacto knife tip to gently assist in holding the pin a way from the wall after it comes loose helps to keep it from refusing after removing the iron.

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Sonic Sitar
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Re: Broken leg on IC Socket

Post by Sonic Sitar » Tue Jun 30, 2020 1:11 am

I can't for the life of me fit a small piece of wire through the socket to reach the board. So I'm going to to go the route of using wick. There are a few spots I need to clean up anyway.
Thanks for the tips on using the wick Abyssinianloop. Watched a few vids on Youtube and I think I get the idea.
I'll take my time with removing the socket and I'll report back. :tu:

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Faye
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Re: Broken leg on IC Socket

Post by Faye » Tue Jun 30, 2020 2:02 am

If you use ChipQuik, removing that socket will be a piece of cake.
Much much less heat needed than using solder wick.

That, and a good (!!) solder sucker.

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synthetek
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Re: Broken leg on IC Socket

Post by synthetek » Tue Jun 30, 2020 5:02 am

It wont look as nice but you could bend the leg up on that IC so its out of the socket and solder a wire to it and jumper it to right side of R32
Inked20200628_170630_LI.jpg
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Re: Broken leg on IC Socket

Post by BartBral » Tue Jun 30, 2020 7:26 am

Sonic Sitar wrote:
Tue Jun 30, 2020 1:11 am
I can't for the life of me fit a small piece of wire through the socket to reach the board. So I'm going to to go the route of using wick. There are a few spots I need to clean up anyway.
Thanks for the tips on using the wick Abyssinianloop. Watched a few vids on Youtube and I think I get the idea.
I'll take my time with removing the socket and I'll report back. :tu:
If you are going to replace the socket, I would personally first try to cut the plastic so that you can desolder individual pins... That is much easier than doing all 14-pins in one go. That way you will know for sure what pin needs some extra heat and TLC, instead of doing all pins again because you don't know exactly what pins are still connected.

But to be honest I have never tried with this sort of socket... It might be to close to the PCB to safely cut thru the plastic, without damaging the board. So be carefull!

Good luck anyway!

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Re: Broken leg on IC Socket

Post by Flounderguts » Tue Jun 30, 2020 8:58 am

Don't cut it away. I've done that, and it often results in lifted pads. You already know that each leg is separate and can be lifted by itself. Grab the leg from the top with a pair of needle nose pliers, and unbend it so that you can grab it with tweezers...then you can desolder each leg by itself, and then discard the plastic. No need to do all 14 at once!
----------------------

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Re: Broken leg on IC Socket

Post by jorg » Tue Jun 30, 2020 9:57 am

Sockets suck. Why is anybody using them in the 21st century?

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dot matrix madness
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Re: Broken leg on IC Socket

Post by dot matrix madness » Tue Jun 30, 2020 10:02 am

jorg wrote:
Tue Jun 30, 2020 9:57 am
Sockets suck. Why is anybody using them in the 21st century?
I don't want to miss sockets on my prototype PCBs. Desoldering ICs is even less fun.
Licenced to solder since 1993

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Re: Broken leg on IC Socket

Post by BartBral » Tue Jun 30, 2020 11:34 am

Flounderguts wrote:
Tue Jun 30, 2020 8:58 am
Don't cut it away. I've done that, and it often results in lifted pads.
Hmmm, NOPE that's NOT what we wan't! Sorry for this bad suggestion.
Grab the leg from the top with a pair of needle nose pliers, and unbend it so that you can grab it with tweezers...then you can desolder each leg by itself, and then discard the plastic. No need to do all 14 at once!
EVER BETTER!!! NICE TIP!!!
I'll try to remember that one. Though I most likely (hopefully) won't be desoldering any sockets in the near future...

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Sonic Sitar
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Re: Broken leg on IC Socket

Post by Sonic Sitar » Tue Jun 30, 2020 11:42 am

synthetek wrote:
Tue Jun 30, 2020 5:02 am
It wont look as nice but you could bend the leg up on that IC so its out of the socket and solder a wire to it and jumper it to right side of R32

Inked20200628_170630_LI.jpg
Hmm that would be ugly as sin, but it could save me having to detach the socket from the board.
So if I used insulated wire and jumped that leg to R32, it would work essentially the same?

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Sonic Sitar
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Re: Broken leg on IC Socket

Post by Sonic Sitar » Tue Jun 30, 2020 11:45 am

Faye wrote:
Tue Jun 30, 2020 2:02 am
If you use ChipQuik, removing that socket will be a piece of cake.
Much much less heat needed than using solder wick.

That, and a good (!!) solder sucker.
Didn't know about ChipQuik! I will definitely look into that!

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Faye
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Re: Broken leg on IC Socket

Post by Faye » Tue Jun 30, 2020 12:21 pm

Sonic Sitar wrote:
Tue Jun 30, 2020 11:45 am
Faye wrote:
Tue Jun 30, 2020 2:02 am
If you use ChipQuik, removing that socket will be a piece of cake.
Much much less heat needed than using solder wick.

That, and a good (!!) solder sucker.
Didn't know about ChipQuik! I will definitely look into that!
It works like black magic. Not just for SMD.
Maybe I'll make a quick video showing how to apply it on IC sockets.
Couldn't find anything on youtube.

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synthetek
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Re: Broken leg on IC Socket

Post by synthetek » Tue Jun 30, 2020 2:24 pm

Sonic Sitar wrote:
Tue Jun 30, 2020 11:42 am
synthetek wrote:
Tue Jun 30, 2020 5:02 am
It wont look as nice but you could bend the leg up on that IC so its out of the socket and solder a wire to it and jumper it to right side of R32

Inked20200628_170630_LI.jpg
Hmm that would be ugly as sin, but it could save me having to detach the socket from the board.
So if I used insulated wire and jumped that leg to R32, it would work essentially the same?
According to the schematic that should work, you could make sure by testing continuity between the pad on the other side of the board under the missing pin on that socket and the leg of r32. It wont look that great but neither will a bunch of jumpers if the socket removal doesn't go well :deadbanana:

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Re: Broken leg on IC Socket

Post by synthetek » Tue Jun 30, 2020 2:42 pm

I think it could also be jumpered to C10 which is closer but confirm with a multimeter first.
Inked20200628_170630_LI.jpg
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Re: Broken leg on IC Socket

Post by plushterry » Wed Jul 01, 2020 5:51 am

If you've got a hot air gun you can just toast the socket a bit then pull the plastic off with some pliers. Easy then to desolder each pin.

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Re: Broken leg on IC Socket

Post by Phitar » Wed Jul 01, 2020 7:54 pm

synthetek wrote:
Tue Jun 30, 2020 2:42 pm
I think it could also be jumpered to C10 which is closer but confirm with a multimeter first.

Inked20200628_170630_LI.jpg
Believe me.... These two options proposed by synthetek are your best, safest and most hassle free options. Screw that "Oh no! It's messy looking" bullshit! .... Nobody is going to be back there looking to critique anyway.
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Grumble
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Re: Broken leg on IC Socket

Post by Grumble » Fri Jul 03, 2020 1:14 am

Screw that "Oh no! It's messy looking" bullshit! .... Nobody is going to be back there looking to critique anyway.
:slapfight:

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Re: Broken leg on IC Socket

Post by EATyourGUITAR » Fri Jul 03, 2020 9:19 am

chip quick can make the thing sensitive to being left in a hot car. take shortcuts you get what you get. it would be better to remove it with chip quick then wick it all up and use better solder. or simply do not use chipquick if you can do it with solder wick and flux.
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