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DC2995A does not work at all

Category: Hardware
Product Number: DC2995A

I've just received a DC2995A from Digikey and tested the board in this condition:

  • Vin: 48V
  • Load: No load
  • Power Supply current limit: 350mA
  • Jumpers: Out-of-the box default setting.

After switching the ON/OFF RUN signal, the result is a noticeable buzzing along with a very unpleasant smell (I would say from the tantalum capacitors placed in the output). Power supply current limiting is activated decreasing Vin to about 33V.

I attach a video with this behavior.

The board is completely useless. What can I do with this?