RoboRIO 2.0 5V Rail Dead

[chrisgerth0]

Our roboRIO 2.0 had a Red Power LED on it.

After removing it from a robot and powering it with 12 V (and no other connections), the light remained red. We measured different points on the exterior connectors - the 3.3v rails seemed fine, but all the 5v rails we could find measured ~0.1V or less. We suspect the 5V rail is not functional.

Model: roboRIO (32380EC)

I've attached 

Does anyone have additional troubleshooting steps we could try?

We've opened https://www.ni.com/my-support/s/case/5003q00001UWfHg/frc-team-1736-roborio-20-5v-rail-dead as well, but were told the device is not eligible for repair (?).

[BoKnows]

For future troubleshooting help, the first step I'd take when seeing the red power LED is to look at the Driver Station.  You should see a lightning tab on the left that will have a bright red bar when your power LED is also red (it's usually greyed out).  In that display, it would share what shorts it's finding.  Here, I'd expect to see it say 5V given what you've already found.

The first troubleshooting steps to take on when you run into this are to clean the area around the front and back of the 5V rail (inside the plastic casing of the roboRIO).  It's most commonly metal shavings that have gotten inside the roboRIO and shorted that rail.

The link you provided is specific to your NI account and can't be opened by others.  Though, we'd work on support (to include any potential replacements) through this forum rather than through one of those tickets.

[chrisgerth0]

Sounds good!

We attempted vacuuming out the unit without disassembly, no change to power LED. We then disassembled the unit, and did both a vacuum and sprayed compressed air around to clear out any debris. Unfortunately, no change to the power LED.

I will have someone connect a driver station tonight and confirm the reported bus faults align with the multimeter measurements. 

[imdunne8]

Here's how the issue appears in the FRC driver station software for this RoboRIO 2.0.

[BoKnows]

I haven't forgotten about you.  I'm working to get a response from the image designer to understand what would appear as a short on the power LED but not appear in the Driver Station.  (I suspect there's a bug in the roboRIO 2.0 reporting but want to clarify)

When is your next competition? 

[imdunne8]

Our robot is currently loaded in to a venue for practice day tomorrow.  The one following that is March 31-April 2.  We're making do with a RIO 1.0, but the switch back brought up a number of previously unknown issues that took up more time than we would have liked to debug.

[BoKnows]

Are you planning to move to the roboRIO 2.0, if possible, by the event next weekend?

[chrisgerth0]

We were able to get the software issues debugged late wednesday before the competition, and ran with the 1.0 throughout this past weekend.

I would still like to move to the RoboRIO 2.0, as we're currently sitting at ~94% memory usage on the 1.0. However, since the only 2.0 we have is not outputting on the 5V rail, we don't currently have plans to put it back on the robot.

We will have it available on our test board though if there's desire to debug additional things.

[BoKnows]

I sent you a message.  Let's chat there.

[mikedduke]

I am having the same issue with our Roborio 2.0. It initially presented with a CAN comm error, then shut down on us during the finals of our second competition. The status light went solid red, and we could not get any response. We opened it up and cleaned it, then tried again several times, but no response. We were able to continue with an older Roborio 1.0, but  I would like to have this one either repaired or replaced. 

How do I do this?

Team 9208