Recent content by jimb

  1. J

    PSU ground connection

    Thanks Minder. I don't know if it is or how to test this. If it's not, would that lead to my machine not powering up? It worked with another 5vdc 1amp supply feeding it pin1=gnd and pin4=+5v.
  2. J

    PSU ground connection

    I take it the only return path would be the AC ground, but getting 0v from the PSU instead would be a better option. Just thinking out loud...
  3. J

    PSU ground connection

    Thank you, Dave. Hopefully it'll make more sense with the pics. The device's power input that this PSU was bought for: The PSU's output: The cable between the PSU and device, checked for correct wiring to thepositive and negative of the coaxial socket. Measured 5v on each used XLR pin...
  4. J

    PSU ground connection

    I bought a DC power supply on ebay from a seller who customizes them and asked them to use a 4-pin XLR at the cable end of the output, with pin1=GND and pin4=5v (that's what the input of the device I want to power says at the back). The PSU has the right specs for my device, but when I connected...
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