[USRP-users] B210 (almost) dead

Marcus D. Leech mleech at ripnet.com
Wed Mar 16 23:05:12 EDT 2016

On 03/16/2016 10:02 PM, Dario Fertonani wrote:
> This is the green series, bought exactly 13 months ago.
Looking quickly at the schematics, L611 may have gone "poof", possibly 
because C673 failed short, which would remove USB power from
   the whole thing.   Unfortunately, your unit is outside of warantee.

If you have test equipment, I'd check L611 for continuity, and go from 

> On Wed, Mar 16, 2016 at 6:57 PM, Marcus D. Leech via USRP-users 
> <usrp-users at lists.ettus.com <mailto:usrp-users at lists.ettus.com>> wrote:
>     On 03/16/2016 06:31 PM, Dario Fertonani via USRP-users wrote:
>         One of our B210 models stopped working, all of a sudden. None
>         of the LEDs turns on, and none of the shell utilities detects
>         anything (uhd_usrp_probe, for example).
>         This happens in our default USB-powered configuration with all
>         four x86 PCs that I tested. When I plug in the power cord, the
>         board appears to be working normally.
>         It seems that the USB connection is no longer good enough for
>         power, but still good enough for data (even for 10 MHz
>         full-duplex MIMO). Switching cable didn't change this observation.
>         Anything we can do, other than defaulting to cord power for
>         all applications with this specific board?
>         Thanks,
>         Dario
>     Is this a white-series B2xx, or a green series, with the larger
>     USB connector?
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