What's the best way to fix this header connector?

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Fifty
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What's the best way to fix this header connector?

Postby Fifty » Mon Aug 07, 2017 1:14 pm

Hi guys, I have a burnt J6 header that I want to replace. I have new headers and turficon pins but this is one of those weird terminations where the wiring is spliced in the middle. See below;

20170807_113052.jpg

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Mrhide
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Re: What's the best way to fix this header connector?

Postby Mrhide » Mon Aug 07, 2017 3:12 pm

you make Y connections WITH NEW WIRING where needed and repin the whole thing, male and female.



so:

Code: Select all

J6   

1     pin ------\
2                |||[ soldered Y connection]~~~~~~ yellow uncooked wire
3     pin -------/
4
5

LF: EGRET 2 or 3 + Shoot 'em up PCB. Let me know what you have!
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Fifty
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Re: What's the best way to fix this header connector?

Postby Fifty » Mon Aug 07, 2017 4:47 pm

I had thought of doing this, but I was afraid I was missing a simpler way to do it. Thank you Mrhide!

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Re: What's the best way to fix this header connector?

Postby flashinstinct » Mon Aug 07, 2017 5:35 pm

You can come over and use the desoldering gun. That will prevent you from pulling the pads if you dont take all the solder out
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Fifty
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Re: What's the best way to fix this header connector?

Postby Fifty » Mon Aug 07, 2017 6:51 pm

I appreciate the offer, but it's only the female header that is burnt to a crisp. Surprisingly, the PCB and male connector is fine. There is only the slightest bit of discolouration. Photo for proof;

20170807_194945.jpg

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Re: What's the best way to fix this header connector?

Postby cap » Mon Aug 07, 2017 6:58 pm

Is that connector missing a male peg to the right of the arrow in the middle or they are made that way?
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Fifty
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Re: What's the best way to fix this header connector?

Postby Fifty » Mon Aug 07, 2017 7:08 pm

It's made that way. Usually pins that are not used are cut. Most times this is done to 'key' the connector so you don't install it upside down, but in this case it's the center pin so it doesn't really help with the upside down right side up thing.

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Re: What's the best way to fix this header connector?

Postby Mrhide » Tue Aug 08, 2017 5:43 am

you NEED to still change the male connector... else you'll just end up back here in no time ...
LF: EGRET 2 or 3 + Shoot 'em up PCB. Let me know what you have!
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Fifty
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Re: What's the best way to fix this header connector?

Postby Fifty » Tue Aug 08, 2017 5:07 pm

I had the board out to replace J7. J6 was clean. The solder was even still shiny.

What is the reasoning for replacing the male connector if there aren't any visible signs of fault?

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Re: What's the best way to fix this header connector?

Postby semicolin » Tue Aug 08, 2017 11:57 pm

Bulletproofing. Often oxidation and cold solder is invisible to the eye, and the original plating will have long worn off. Pin headers that have overheated often carry that heat down through the pin and into the connection at the board trace.

Even if I don't have time to replace the male header pins, I always at least reflow the solder. That's always worked well for me and should generally be enough if the pins themselves are still shiny.
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Re: What's the best way to fix this header connector?

Postby Mrhide » Wed Aug 09, 2017 6:02 am

^^ THAT :)
LF: EGRET 2 or 3 + Shoot 'em up PCB. Let me know what you have!
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Fifty
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Re: What's the best way to fix this header connector?

Postby Fifty » Wed Aug 09, 2017 12:34 pm

Understood guys. Thanks! I'll take an even closer look and reflow at the minimum.

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Re: What's the best way to fix this header connector?

Postby Lowrent » Wed Aug 09, 2017 3:42 pm

You can check this old thread : https://www.maaca.org/viewtopic.php?t=14502

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Fifty
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Re: What's the best way to fix this header connector?

Postby Fifty » Wed Aug 09, 2017 10:07 pm

Thanks for the link!

I ended up soldering them into a Y. It came out pretty nice if I do say so myself. Oh, and as an added bonus the GI on the pin is working again! I never had any doubts. :D

20170809_193727.jpg


20170809_213805.jpg

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Re: What's the best way to fix this header connector?

Postby semicolin » Wed Aug 09, 2017 11:45 pm

That looks sharp!
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Re: What's the best way to fix this header connector?

Postby Mrhide » Thu Aug 10, 2017 7:26 am

:clap :clap
LF: EGRET 2 or 3 + Shoot 'em up PCB. Let me know what you have!
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Fifty
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Re: What's the best way to fix this header connector?

Postby Fifty » Thu Aug 10, 2017 9:30 am

Ha ha! Thanks for the praise guys!

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Re: What's the best way to fix this header connector?

Postby cdnpinballer » Thu Aug 10, 2017 9:55 am

Super hot connector man! Love it!
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Re: What's the best way to fix this header connector?

Postby OTTOgd » Thu Aug 10, 2017 3:07 pm

Yeah, nice work!

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Fifty
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Re: What's the best way to fix this header connector?

Postby Fifty » Thu Aug 10, 2017 9:27 pm

I found another connector that I need to clean-up. This one is under the PF. Does anyone know the sizing on this thing? I need to buy the proper male and female pins for it but I want to make sure they lock into the existing connector.

20170703_102941.jpeg


Do I just base the pin on the wire gauge? Digikey shows sizing based on AWG but it's from 14-20AWG which seems like a wide variable.

https://www.digikey.ca/product-detail/e ... 1-ND/26386



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