[Ovmsdev] USB port fragility

Michael Balzer dexter at expeedo.de
Tue Aug 4 14:39:37 HKT 2020


Great, that looks much more rigid and should solve the issue.

What's the reason for / benefit of the thicker antenna cables? Also just
rigidity, or do they have an effect on signal strength?

Regards,
Michael


Am 04.08.20 um 03:24 schrieb Mark Webb-Johnson:
>
> The small solder area is my suspicion too, and a relatively easy fix.
> Through hole would be better but would require a new component and
> circuit redesign (with associated complexity and re-certification
> issues). Here are some pictures of the 2020-06-15 batch with the
> changes. But it will be some time before distribution stock is cleared
> out and those start to be shipped. Note also that 2020-06-15 also
> includes a change to new thicker antenna cables for both GPS and GSM.
>
> Regards, Mark.
>
>   
>
>
>> On 4 Aug 2020, at 9:11 AM, Craig Leres <leres at xse.com
>> <mailto:leres at xse.com>> wrote:
>>
>> On 2020-08-03 01:26, Michael Balzer wrote:
>>> I've had multiple cases now of damaged and broken off USB ports.
>>
>> I managed a mechanical "no heat" desolder of the usb port on one of
>> my modules last year (I wasn't careful when sliding the seat back
>> with a cable plugged in). When I took it apart I could see that there
>> was not very much solder in the four holes that secure the usb shell
>> to the board. At the time my suspicion was that the small amount of
>> solder from the factory wave solder made for a weak bond. I was lucky
>> that I didn't lift any pads and was able to resolder it.
>>
>> Craig
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>

-- 
Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal
Fon 02333 / 833 5735 * Handy 0176 / 206 989 26

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