[Help] Ramps 1.4 5V and Vcc pins short-cirtuited

[Pablo Gil]

Hello,

Checking the 5V and Vcc pins (shown in the picture attached I have short circuited them (well, I really don't know which of two of the three near pins were connected) but I saw a puff of smoke and now the pins no output voltage. Also the LCD screen turned white (see the other image attached). The printer preheats the nozzle and the bed, move in all axis when I command it with the LCD click encoder but it doesn't read the SD card and the USB port seems also to be broken because OctoPrint can't connect with the board to print "wirelessly".

Anyone knows what I have damaged? I hope it's just a diode that I can manually exchange...

  

Help is appreciated, thanks

[Ross Shannon]

Do you have a macro pic top and bottom of the board

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[Kai Dupke]

Check the voltage regulator on the mega near to the power connector.

Same happened to me, I had to replace this small piece.

greetings kai

> <https://lh5.googleusercontent.com/-_HK77Uy9e1M/VMQFzfC7QrI/AAAAAAAABVU/gny3KuxEYxQ/s1600/5V-Vcc%2Bshort-circuit.png> <https://lh3.googleusercontent.com/-hgvGySUAfV0/VMQFqk7QL0I/AAAAAAAABVM/MOZ7MqMP3eI/s1600/LCD2.jpg>

>
>
> Help is appreciated, thanks
>
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