https://docs.google.com/file/d/0B43XXiSt0MIdcnJyQVJHQVM1YlE/edit?usp=sharing
The root cause of the failure was a break in the feedback conductor in the GPS power cable, which had caused the input voltage to rise above the absolute maximum of 6V, destroying 3 power supply components.
The design of the car power supply is poor in that a simple break in one of the cable conductors can cause a damaging voltage to be applied to the GPS.
The components have been replaced, and the GPS tested with a clean 5V supply.
The power supply was later repaired by shorting the red and white conductors at the power supply end of the cable.
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| Burned out components in TomTom Go 910 |
