On Mon, Feb 4, 2013 at 4:13 PM, John Watlington <w...@laptop.org> wrote:
> > On Feb 4, 2013, at 8:18 AM, Christoph Derndorfer wrote: > > > Hi again, > > > > while investing why an XO-1 wouldn't charge I discovered that the 2A > fuse near the power plug seems to have been blown and was "fixed" by > someone simply soldering over it (see the attached photo). > > Wow, first we've seen outside of torture tests! That fuse should only > blow if someone tried to > power the laptop with greater than +/-40V. Yeah, it must have been quite something because the area around the fuse has been blackened... > > Now I'm wondering whether there's anything to be done about that or if > that's something that essentially can't be fixed in the field? > > Solder down another small 2A fast blow fuse (3A for XO-1.5 or later). > > If a repair center found a blown fuse, I would also recommend checking the > protective diodes > D118 and D123. > Okay, thanks a lot for the information. Since I don't have the time to research where to buy such a fuse and then solder it in I'll just leave instructions here with the machine. Plus I already gutted that XO for spare parts so right now it's sitting next to me without a camera, antennas, battery, etc. ;-) Thanks, Christoph > Cheers, > wad > > -- Christoph Derndorfer volunteer, OLPC (Austria) [www.olpc.at] editor, OLPC News [www.olpcnews.com] contributor, TechnikBasteln [www.technikbasteln.net] e-mail: christ...@derndorfer.eu
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