Count Zero Interrupt Posted April 7, 2017 Share Posted April 7, 2017 Hi all, I have applied 12 V to the DC input of my Cubietruck (bad thing). So now I want to repair / recover everything possible... Both DC-in and battery input seem to be short-circuited, but I cannot find the exact position. Power via USB-OTG works (successful boot). The fuse directly after the input has almost zero resistance (which is good) and I have checked all visible power-related parts (doc here) with a microscope (nothing looks burned, as far as I can tell all diodes/resistors/... work as they should). When checking the resistance of DC-in to ground it gives me 1,5 kOhm with a multimeter (don't have a second one here, but I guess its voltage is ~0.5 to 1V). In the PMU docs it says the PMU can handle over-voltage up to 11 V ( ). Still I hope a short 12V-input hasn't instantly killed the PMU, as USB power works (iirc also linked to MPU). Is there anything I can try to check / fix / replace apart from the PMU? Thanks for answers. Link to comment Share on other sites More sharing options...
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