So I did something stupid last night and accidentally had an endstop switch plugged in backwards. Turned on the 12V, heard a nice pop, immediately noticed my endstop and shut if all off to fix my endstop. After fixing my endstop, when I run the Mega/Ramps combination on 12V, the RepRapDiscount 20x4 LCD is really white and unreadable. When I turn off the 12V and plug the USB cable in, its display is normal. So I'm pretty sure I've blown up a 5V regulator, but any idea where it might be?
I am able to download to the mega over USB, so that still works, but the LCD goes white when I turn on the 12V supply. I haven't tried to run anything yet with the white display as I figured something else might not work right after the pop.
I am able to download to the mega over USB, so that still works, but the LCD goes white when I turn on the 12V supply. I haven't tried to run anything yet with the white display as I figured something else might not work right after the pop.