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I accidentally shorted the DC power supply pins on the sbRIO 9612 FPGA board and my DC power supply had a very large current limit. Now, the FPGA board does not power up. To see if the fuse blew up, I replaced the fuse with a wire to see if the board works now. It did not. Which means, something other than the fuse is not working as well. What could I have possibly fried in NI sbRIO FPGA board when I shorted power terminals? It is a 1000$ board and the service repair quotes 500$. I want to try to fix it by myself, if I can. Does any one have a schematic of NI sbRIO9612 FPGA board or any suggestions on how to proceed with debugging this board.

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  • \$\begingroup\$ it is unclear what you shorted ... it sounds like you shorted the power supply ... how was the board involved? \$\endgroup\$
    – jsotola
    Jun 7 at 19:07
  • \$\begingroup\$ Potentially, inductive PSU cable and large dI/dt when removing the short. That could do just about anything to the board. \$\endgroup\$ Jun 7 at 19:36
  • \$\begingroup\$ So you simply started working on a 1000$ board before even getting hands on the schematic of the board? \$\endgroup\$
    – Mitu Raj
    Jun 7 at 20:06
  • \$\begingroup\$ @Mitu Raj Not all vendors provide schematics to their hardware. NI typically does not provide schematics to their devices. You'll find block diagrams but not schematics. \$\endgroup\$
    – mrbean
    Jun 7 at 23:15
  • \$\begingroup\$ That seems super odd. We work here on 5000$ V7 boards of XIiinx on lab. Without schematics, we can't put hands on them. \$\endgroup\$
    – Mitu Raj
    Jun 8 at 4:03

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