Dead NDLR
01-11-2023, 01:08 PM
Oh no! That's not a typical failure. Did you notice if the LED on the MRCC USB host port turn from green to an amber color when this happened? That would indicate an over-current condition on the host port, which could happen if there was a short circuit on the NDLR.
In that area you mentioned, there is R46, which is just a pullup resistor for the button, and C4, which is a capacitor on the 3.3V power supply for the LCD display. The LCD backlight LEDs have their own power source separate from the display electronics. Its hard to guess what has gone wrong though. Please send an email to support@conductivelabs.com, copy your description of the issue above along with the serial number of the NDLR and we can discuss next steps. We'll probably want someone to take a look at it to see if its repairable or if we need to replace the circuit board.
In that area you mentioned, there is R46, which is just a pullup resistor for the button, and C4, which is a capacitor on the 3.3V power supply for the LCD display. The LCD backlight LEDs have their own power source separate from the display electronics. Its hard to guess what has gone wrong though. Please send an email to support@conductivelabs.com, copy your description of the issue above along with the serial number of the NDLR and we can discuss next steps. We'll probably want someone to take a look at it to see if its repairable or if we need to replace the circuit board.