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Ramps 5v problem?

Discussion in 'Reprapdiscount aftersales Support' started by tootechy, May 29, 2013.

  1. tootechy

    tootechy New Member

    May 28, 2013
    I may have a problem with my rambs board. It appears that I can only get 5v out (pins by 12v 5a input) if I've plugged in via the usb. Also, the lcd will only display if the usb cord is plugged in and supplying power. I've got 12v going into the 5a input, should that power the lcd as well without requiring connecting to a usb power source?
  2. Falkayn

    Falkayn New Member

    Jun 2, 2013
    Montpellier, France
    I have the same problem. Voltage when ramps is supplying the taurino is approx 3v, same when using Taurino jack power input.
    Only when USB is plugged I can use it as stand alone with the LCD.

    We have 5 other printers using same board, and it's working fine.
    Do we have some work around ? Or maybe some defective card ?

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