Object looks fine in material view but black in rendered I have referenced StackExchange post as well as a post from the Blender Forum. However, unlike their case, my output node seems fine and I only have one UVMap and thus, I cannot have chosen the wrong UV Mapping as well. Moving the position of the lamp did not help. In addition, I could not find out where the override all materials option is, so, I could not test out that option. As such, I really appreciate your help and thanks in advance for your help.

My .blend file can be found here.
The material of the text is maden by a texture (missing in the .blend file) going into a background node wich feeds the material input (and into the displacement input also).

Background node is intended to be used in the world tab, not the material tab.
I used a diffuse node instead, turned the world to pure black, reduced the lamps intensity to 1000 and assigned a simple wood seamless texture:
this is the result.