Navio Power Header Blown

Navio / Edge Hardware
1

Hello All,

I am connecting my Navio+ to the Navio Power Module supply and that has been working. However recently it has stopped.

I measured the voltage out of the power module and its now around 2.7 volts. It has failed. This failure appears to have taken out the Navio+ power rail. I used another 5v source a px4 power supply and it also failed to power it.

I can power it via the USB and via the Servo rail.
So I was wondering are these power supplies protected via different chips? I checked the connector and it appears to be working. So is there anywhere else I can check?

I could not find a schematic of the Navio board and due to the matte black PCB it makes it quite hard to trace out.

Adric

2

Bump.

So does anyone know which chip is or diode I could have blown?

The power coming from the power supply and voltage sensor is not powering my board any more.

3

Is the part on the board visibly damaged? You might be looking to replace M4 (DMG2305UX) or M3 (DMMT5401).