I Think I Killed Rambo (board) !

[johnsquared1978]

I've been having problems with my extruder not heating up. It will work fine sometime but not others. I suspected a loose connection or bad wire someplace so I set about testing with a multi-meter to find the problem. Unfortunately, I wasn't paying attention and had my leads plugged in wrong and when I went to check the connection where the "HEAT 0" wires are plugged into the RAMBO board there was a spark and all the LEDs on the board went dark. I'm afraid my carelessness and ignorance is going to cost me the price of a new board (ouch) but before I pay my stupid tax I was wondering if there is anything I can do/test/replace that might be easier and cheaper!

TL;DR - shorted the extruder power on my RAMBO board. How do I know for sure I need to replace the board?

Thanks for any help you can provide!

[insta]

The board is fine -- you popped the little fuses on it.

Grab a handful: https://ultimachine.com/collections/ele ... 0448005-mr

[johnsquared1978]

Thanks Insta - Just ordered some... I REALLY hope you're right! I'll keep you posted.

[insta]

The fuses do pop out with tweezers. You can do a continuity / ohms test across them. They're really tiny and look like SMT-mount capacitors.