RAMPS 1.4 smoked extruder heat. (2 replies)

While doing a test print my wires for my heat resistor arc'd and now my j head extruder will not heat. Will I have to replace the whole ramps board or can I replace just a part?

Thermistor shows temperature but when I set the temp in pronterface there is no voltage on D10 and the LED does not light up indicating that it is trying.

Heatbed works fine and does what it is supposed to.

Any other troubleshooting I can do to narrow down what smoked?

Thanks in advance for your help.