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circuit board repair question Answered

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This little audio input jack broke off a circuit board.  I'm wondering if anyone knows what I need to do to fix it?

You can see that there are 4 metal connectors which I assume a soldiering iron can easily fix.  But there is also an orange strip that snapped off of the little orange baseball home plate-shaped tab on the bottom of the jack.  Does anyone know what that is and the best way to repair it?  (The loose strand is right by where it says "CN6" on the board)

I don't know anything about circuitry but was going to borrow a friend's soldiering iron.

Thanks to anyone who can point me in the right direction!

Phillip

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user
crazypj (author)2017-11-03

I repaired the motherboard power connector on stepdaughters laptop computer a few times. Audio repair should be easier, even if double sided board. Use some old phone connector cable, nice thin copper wire about 32g?

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Jack A Lopez (author)2017-11-05

The jack in between your fingers, in your first picture, has 5 pins, not 4.

The reason one pin looks different from the others, like it has a "baseball home plate-shaped tab", is because that pin ripped loose part of the copper trace that was underneath it.

In fact you can see the remains of that trace on the circuit board in the second picture. The copper conductor that used to connect to that pin is now this thin, curled up, copper ribbon, right next to, and running parallel to, the word "CN6", printed on the circuit board.

Anyway, that tiny little copper ribbon is something important, that needs to be reconnected, and this is the trace Downunder35m refers to when he writes,


"follow the ripped of trace to a point where it is still on the circuit
board. Scrape the paint off and use a thin wire to connect from there to
the contact on the headphone jack"


You said you planned to "borrow a friend's soldering iron."

I suggest borrowing your friend's soldering skills too. By that I mean persuading your friend to do the soldering for this repair, instead of you doing it.

The reason why is because it looks to me that this job of re-soldering the jack, and soldering a wire to that broken trace, is not a job for someone with noobish soldering skills. I am naively guessing your friend has superior soldering skills to yours, since he or she actually owns a soldering iron, and also because, by your own admission, you say, "I don't know anything about circuitry", including the knowledge of how to solder tiny things without burning them up or breaking them.

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iceng (author)2017-11-02

Buy a 20 watt princess solder iron or better ask a friend to solder it for you..

I would use a dab of epoxy to hold the jack down because you strong arm the plug..

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Downunder35m (author)2017-11-02

You can replace it with a similar jack and then follow the ripped of trace to a point where it is still on the circuit board.
Scrape the paint off and use a thin wire to connect from there to the contact on the headphone jack.

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