On Monday, March 11, 2019 at 5:31:56 PM UTC-4, Rogério Lucas wrote: > > Hello everyone, > > I need help and would be grateful for any help to understand what happened > with a unit of my BBB wireless. I'm not looking for RMA, but only to > understand what might have caused the board to burn. > > It happened the following: > The board was plugged into an LCD and connected to a 5V - 2A power supply > (it came from an IT kit with an am335x) and also connected with a USB cable > on my Macbook; > I had been using this board with no problem, and last night I execute a > halt on the command line and went to sleep. In the morning I instead of > unplugging the USB cable I just turned off the power supplying the 5V > source and forgot to disconnect the USB cable, so I stayed for some time > connected only by the USB port, but as I was in halt and nothing happened, > so I turned on the 5V source again and then the board did not call anymore. >
Can you say more about this "IT kit"? I'm wondering if it was trying to draw excessive current. The board itself can work off of USB power just as well as the power jack, depending on what external hardware is connected. Does the power LED come on? Can you try booting from the image on http://beagleboard.org/latest-images? > > I had plans to create a custom version of the board with a onboard LCD > input, a DAC and a few more components, but I'm scared to now. I'm in the > middle of a very big project, i do not know what direction I should take > now. I'm afraid to continue with the platform as the basis for my project. > > I do not know if there was a problem in the power source during the night, > I'm very worried because the board just short circuit without using it, I'd > be very happy if I knew I did something wrong, but it's not the case. > > I would also like recommendations to project a Surge Protection Device. > Any help is welcome. > > Thanks in advance! > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/84605810-d2d9-452a-99b5-4ca0988ec35d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
