Testing RAMPS 1.4

Note: Plz see the image attached here

Hi,

I am just beginning in 3D printer.

When I connected the RAMPS board to the SMPS, I saw smoke coming from near the inputs to the board.
I could not find any visible burn mark anywhere in the board.

Next I detached the wires from the board, and connected again so as to make sure that , nothing is loose connected.

No smoke this time. But more strange things happening:

1- When I connect the board to Arduino board and connect USB to PC, no LED is blinking on the Arduino, and also no LED on RAMPS.
In this case , the voltages at heat bead input voltage and hot end input voltages are 0.

But if I take only RAMPS, and give inputs, then I found that heat bed and hot end output voltages are fluctuating fast and are near 3 volts.

Have I burnt the RAMPS ? (I was able to make LED blinking working in Ardiuno board, so it looks like Ardiuno is fine ).

How do I test that the RAMPS board is fine or not?

I have attached a pic showing how I connect the power supply. Is there anything wrong here ?
I saw a similar post:

[forums.reprap.org]

Please guide me regarding this


Thanks

Edited 1 time(s). Last edit at 02/05/2015 03:52AM by acme.

Impossible to tell if your PS wiring is correct as I can't see the labeling on it. I would like to see how you have wired the Ramps as well. Have you checked the green connectors that plug into the Ramps for visible signs of burning?

---

_______________________________________
Waitaki 3D Printer

The high voltage input wire colors are a little odd. Can you provide a photo of the other end of the wire and let us know your country and voltage. Also, posting a photo of the ramps connection, as suggested by waitaki, would be very helpful.

---

-David

Find me online at:
Thingiverse
Instructables.com
LinkedIn
Facebook

Check out my FolgerTech Prusa i3 (plexi) at MindRealm.net