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<p>Does anyone happen to know exactly what sort of fuse it is?</p>
<p><br>
</p>
<p>-Sydney<br>
</p>
<br>
<br>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> elinux-MinnowBoard <elinux-minnowboard-bounces@lists.elinux.org> on behalf of Ferchu R <chamac2@gmail.com><br>
<b>Sent:</b> Wednesday, July 1, 2015 11:15 PM<br>
<b>To:</b> MinnowBoard Development and Community Discussion<br>
<b>Subject:</b> Re: [MinnowBoard] USB Problems</font>
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<div dir="ltr">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. </div>
<div class="gmail_extra"><br>
<div class="gmail_quote">2015-07-01 17:54 GMT-05:00 John Hawley <span dir="ltr"><<a title="Ctrl+Click or tap to follow the link" href="mailto:john.hawley@intel.com" target="_blank">john.hawley@intel.com</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex; border-left:1px #ccc solid; padding-left:1ex">
As was suggested, the likely cause is a blown F1 (from what we've seen).<br>
The fuse can be found on the top of the board near the USB connectors,<br>
opposite side from the sd-card cage. It's a little blue thing with an<br>
"N" on it. If you have a multimeter, you can check if there's any<br>
voltage across the line while the board is on, to see if it's blown (and<br>
something I'd recommend before considering an RMA or attempting to<br>
repair it yourself).<br>
<br>
Although it is possible to replace it with another 1.5A - 2A fuse of the<br>
same size (it has to be soldered), be aware that doing so will void<br>
your manufacturer's warranty.<br>
<br>
If you've been able to confirm that F1 is in fact blown, I'd recommend<br>
going through the RMA process as your first option.<br>
<br>
- John 'Warthog9' Hawley<br>
<span class=""><br>
On 07/01/2015 02:42 PM, Ferchu R wrote:<br>
> I had the same issue as Peter (broken F1). At the time, the only<br>
> walkaround was using a powered USB Hub. I asked on this board how can I<br>
> get the board back to its functionality, but sadly I was not given any<br>
> advice, even from CircuitCo.<br>
><br>
><br>
><br>
> 2015-07-01 14:58 GMT-05:00 peter <<a href="mailto:peter.bolch@t-online.de">peter.bolch@t-online.de</a><br>
</span>> <mailto:<a href="mailto:peter.bolch@t-online.de">peter.bolch@t-online.de</a>>>:<br>
<span class="">><br>
> Hi Sidney,<br>
><br>
> I had the same effect with my Minnow Board. Someone here suggested<br>
> to check fuse F1 (to the left of the USB connector). It was blown<br>
> although there was just a keyboard connected to the board.<br>
><br>
> Peter<br>
><br>
><br>
> On 01.07.2015 21:15, Sydney Lybert wrote:<br>
><br>
> Hello,<br>
><br>
><br>
> I recently purchased a Minnowboard. I was attempting to install<br>
> an OS on<br>
> it (Ubuntu 14.04.2). During the installation, it suddenly died,<br>
> and now<br>
> the USB connections won't pick up any USB devices. Any ideas why<br>
> this<br>
> would happen? I've tried disconnecting the power and restarting<br>
> everything with the USB devices already connected, and I've tried<br>
> powering on the board and then connecting the devices, to no avail.<br>
><br>
><br>
> Thanks,<br>
><br>
> -Sydney Lybert<br>
><br>
><br>
><br>
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