Electronics > Repair
USB socket bad design?
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coppice:

--- Quote from: wraper on November 25, 2024, 12:25:18 pm ---
--- Quote from: u666sa on November 25, 2024, 03:53:50 am ---
--- Quote from: wraper on November 24, 2024, 08:25:50 pm ---It's supposed to be soldered everywhere. All terminals and under the shell. Front side shell terminals are the most important as it's the place with the most of force applied. Not soldering them makes it very weak.

--- End quote ---
Circa 2013 - 2016 there was bunch of cheap phones with micro usb. Yea, they'd bring them to you, you replace connector and it absolutely does not matter how you solder the damn thing. Some designs would come back to you.

--- End quote ---
Because they did not have TH terminals. You cannot solder TH terminals if there are none. Having TH terminals and not soldering them is even dumber than using connectors without them.

--- End quote ---
Connectors which are purely surface mount are almost always a disaster. Quite a lot of designs, especially USB C connectors, have moved from surface mount to being mounted in a recess at the edge of the board, soldered to plating running across the edges of the board. At first sight some of those look reasonably robust, but I wonder how their robustness compares with connectors that have the traditional through hole anchoring.
wraper:

--- Quote from: coppice on November 25, 2024, 02:11:53 pm ---Quite a lot of designs, especially USB C connectors, have moved from surface mount to being mounted in a recess at the edge of the board, soldered to plating running across the edges of the board. At first sight some of those look reasonably robust, but I wonder how their robustness compares with connectors that have the traditional through hole anchoring.

--- End quote ---
IME the most robust are connectors like what you described but with terminals bent 90o on the ends and soldered TH.
adeuring:

--- Quote from: mclien on November 24, 2024, 05:24:19 pm ---To me it looks like the through hole parts of the USB port should be soldered, too.
While this is voiding warranty, I'd rather have a keyboard that lasts longer than 2 weeks.

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Consider to contact the seller about the issue. They might allow you to solder the connector properly without voiding the warranty. Or propose to send the unit back once more so they can do the soldering.  After all, getting the problem fixed properly is also in their interest.
mclien:

--- Quote from: adeuring on November 25, 2024, 05:26:46 pm ---Consider to contact the seller about the issue. They might allow you to solder the connector properly without voiding the warranty. Or propose to send the unit back once more so they can do the soldering.  After all, getting the problem fixed properly is also in their interest.

--- End quote ---
Well, that would be a very tedious task.
I got this one from a reseller. And as I see it the brand selling it most are producing in china.
And there are 2 problems: the missing solder (which might be solvable with the right abound of solder paste in production
The other is the hole in the PCB are only half connected to the actual copper plane (like half the circle is "sticking out " of the ground copper. )

So you would need to get a contact, which is willing to change the design a bit, do provide better connection to the copper-ground and the carry the information through to the production facility plus correcting the adjusting the process of applying and processing the solder process.

Side not, as I loo on the new pics, I seems the solder stop flowing directly at the actual copper at the hole... (I'll let you know if me additionmal soldering had work)
wraper:
Looks like design was correct and it's a production screw up. Just solder those terminals and it should be fine.
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