On Thu, Jan 31, 2013 at 9:39 PM, Martin Langhoff <martin.langh...@gmail.com>wrote:
> On Wed, Jan 30, 2013 at 8:39 PM, John Watlington <w...@laptop.org> wrote: > > in 2010 (IIRC) to fix this, and there is a simple preventative measure > to prevent it from happening > > on older machines (adding two pieces of cellulose tape to the right > place on the motherboard.) > > Details and the fix are at http://dev.laptop.org/ticket/10148 > > That trac entry has the details of the fix, which involves changing > the main frame of the unit, but Christoph needs the preventative > workaround, which I don't think is described there. > > The workaround is to put 0.5mm cellulose tape to act as spacer so that > the camera cable does not get folded so harshly. My rule of thumb is > as follows: when you look at the mainframe on the side where the > motherboard goes, you see an circular extrusion right on the other > side of the speaker would go. > > Place the spacer in the middle of that circle. Does not need to be > large in terms of surface. > > Put the motherboard + camera assy into place -- when you are in that > process, observe where the camera cable meets the mainframe and check > visually that the spacer is low enough that it will not "pinch" the > cable. > > hth, > Hey Martin, thanks a lot for these instructions. Based on Plan Ceibal's error description I had extrapolated a similar approach and so it's good to hear that I wasn't totally off. Unfortunately I'm afraid that we simply won't have time to go through the 18 or so XO-1s which currently don't exhibit the problem during tomorrow's session. I will however pass along your instructions to some of the local tech-wizards and maybe they can do the workaround at some point in the near future. Thanks again, Christoph -- 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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