Hey folks!

So I dug out my old prusa i3 guts to re-assemble it this weekend. I have a G3D LCD/Card that rides my arduino+ramps combo. I uncommented out the G3D_PANEL def in the marlin 1.0.0 firmware (per Wiki), but I can't seem to get any display output.

Symptom:
-----------------
LCD powers up, but does not display anything. Originally it displayed 2 rows of white boxes -- dialed down the contrast and it's just a nice solid blue (no text) across the screen.

LCD "chirps" when you press the selection button/knob, so it somewhat responds.

SD card does read, so I know that the ribbon cables are matched correctly - red stripe on pin 1, matches pin 1 on the LCD side.


I don't have another LCD to test at the moment to rule out just bad pins on the board, but I figure it's likely just software/config. Any help would be appreciated smiling smiley

Edited 1 time(s). Last edit at 02/19/2016 07:54AM by ncshooter426.