Duet Expansion 1XD broken?

[Hammad]

Hello,

i have received 3 1XD Boards and 1 is flashing very fast. The other 2 are fine. Its the 5V indicator. Is the Board defect?

thanks for the help

[dc42]

@hammad that could indicate an overload on the 5V or 12V rail. Does it still flash if you disconnect everything except power and CAN from the 1XD? Are you certain it is the 5V LED flashing, not the STATUS LED?

[Hammad]

@dc42 Thanks for the quick reply. The 5V LED is flashing with only power and CAN connections. its not a very bright flashing. Ill attach a picture in the next reply

[Hammad]

@dc42

i cant get a picture with a visible light from the LED. But its definitely the 5V LED

[dc42]

@hammad thanks. Please check that the 5A fuse is OK with a meter. Assuming it is, we will replace that 1XD so please email warranty@duet3d.com and include a link to this thread.

[Hammad]

The 5A fuse is fine. I've checked it before posting the question. Thanks for your help.