[MinnowBoard] USB Problems

[Ferchu R]

Why F1 can not be shorted as a regular fuse?. I know F1 was put there for a
reason, but most switched power supplies have overcurrent protection, so
connectiong a very havy load to the USB should only result in the power
supply going off as protection.

2015-07-01 17:54 GMT-05:00 John Hawley <john.hawley at intel.com>:

> As was suggested, the likely cause is a blown F1 (from what we've seen).
>  The fuse can be found on the top of the board near the USB connectors,
> opposite side from the sd-card cage.  It's a little blue thing with an
> "N" on it.  If you have a multimeter, you can check if there's any
> voltage across the line while the board is on, to see if it's blown (and
> something I'd recommend before considering an RMA or attempting to
> repair it yourself).
>
> Although it is possible to replace it with another 1.5A - 2A fuse of the
> same size (it has to be soldered), be aware that doing so will  void
> your manufacturer's warranty.
>
> If you've been able to confirm that F1 is in fact blown, I'd recommend
> going through the RMA process as your first option.
>
> - John 'Warthog9' Hawley
>
> On 07/01/2015 02:42 PM, Ferchu R wrote:
> > I had the same issue as Peter (broken F1). At the time, the only
> > walkaround was using a powered USB Hub. I asked on this board how can I
> > get the board back to its functionality, but sadly I was not given any
> > advice, even from CircuitCo.
> >
> >
> >
> > 2015-07-01 14:58 GMT-05:00 peter <peter.bolch at t-online.de
> > <mailto:peter.bolch at t-online.de>>:
> >
> >     Hi Sidney,
> >
> >     I had the same effect with my Minnow Board. Someone here suggested
> >     to check fuse F1 (to the left of the USB connector). It was blown
> >     although there was just a keyboard connected to the board.
> >
> >     Peter
> >
> >
> >     On 01.07.2015 21:15, Sydney Lybert wrote:
> >
> >         Hello,
> >
> >
> >         I recently purchased a Minnowboard. I was attempting to install
> >         an OS on
> >         it (Ubuntu 14.04.2). During the installation, it suddenly died,
> >         and now
> >         the USB connections won't pick up any USB devices. Any ideas why
> >         this
> >         would happen? I've tried disconnecting the power and restarting
> >         everything with the USB devices already connected, and I've tried
> >         powering on the board and then connecting the devices, to no
> avail.
> >
> >
> >         Thanks,
> >
> >         -Sydney Lybert
> >
> >
> >
> >         _______________________________________________
> >         elinux-MinnowBoard mailing list
> >         elinux-MinnowBoard at lists.elinux.org
> >         <mailto:elinux-MinnowBoard at lists.elinux.org>
> >         http://lists.elinux.org/mailman/listinfo/elinux-minnowboard
> >
> >     _______________________________________________
> >     elinux-MinnowBoard mailing list
> >     elinux-MinnowBoard at lists.elinux.org
> >     <mailto:elinux-MinnowBoard at lists.elinux.org>
> >     http://lists.elinux.org/mailman/listinfo/elinux-minnowboard
> >
> >
> >
> >
> > _______________________________________________
> > elinux-MinnowBoard mailing list
> > elinux-MinnowBoard at lists.elinux.org
> > http://lists.elinux.org/mailman/listinfo/elinux-minnowboard
> >
> _______________________________________________
> elinux-MinnowBoard mailing list
> elinux-MinnowBoard at lists.elinux.org
> http://lists.elinux.org/mailman/listinfo/elinux-minnowboard
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.elinux.org/pipermail/elinux-minnowboard/attachments/20150701/7a608963/attachment.html>