Broken regulator on Dagu Red Back Spider
April 21, 2012
I was driving around with my Rover 5 (remote controlled) when it suddenly "stopped working". L1 (red led) kept on flashing. I pressed the reset button but nothing happened. I started taking it apart and I've come to the conclusion that the voltage regulator (LM2676) is broken. I've powered it straight from a lab power supply giving it 14V but the regulator only gives 3V. (measured on the regulator and the pins on the board) When I power it from USB it still works, then I measure 5V on the header pins and I can upload sketches. So I think the regulator is broken... Pretty strange as the regulator was not under a big load. It was only powering 1 9G servo.
Can I supply 5V straight to the VCC pins and bypass the regulator without further damaging it? I have a spare UBEC that I could use.