I have followed the wiki you advised and havent seen any change in the leds. With usb supplied voltage only i am only seeing the LED +5V and LED USB PWR. No change with the SD inserted or removed.
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No 3.3v led
I'm in the process of finishing off my printer build and my Duet Maestro has stopped responding. Ethernet was intermittent for a few hours and now I cannot get the board to load firmware. Currently not seeing the 3.3v led illuminated at all. Ive checked my wiring for faults and followed the troubleshooting guides posted on the wiki. Im suspecting the board may be dead.