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Unread 14-03-2016, 20:49
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FRC #6054 (Dukes)
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Weird PDB failure - No LEDs

So we had a working robot at the end of build season, we had been driving and programming for over two weeks. Everything was fine. Robot went in the bag, and sat in the back of my classroom for 3 weeks. We get to the Pittsburgh Regional, unbag, power up, and the PDB shows no LEDS. The weird part was that it was till powering the motor controllers. Their lights were happily blinking away. According to documentation no LEDs imply reversed voltage to the PDB, (which it did not have) or no voltage (it had 12.4V). The CAN bus was fine, but it also didn't show up in the browser where you check firmware.

We had to switch it out with one from the spare parts table at the regional, but now we are back home, and trying to figure out if we can fix this one, or what went wrong. Anyone have this before?