Sorry to hear this, Earl. Let’s get you up and waving. First, what’s the serial number on your unit? It’s on the circuit board, on a round sticker. Second, do I understand the display displays nothing? Nothing at all? Always dark, even when you gently press on it and rock it a little with your fingertip? Third, what do you have the Altura connected to? A synthesizer or a computer? With the synth or computer set to OMNI, meaning it is listening for MIDI data on all channels, do you see any signs of life? On the synth there is usually a LED that flickers as MIDI data passes through. On a computer, of course, you should be able to display the entire data stream, even if you don’t hear anything yet.
If the display is not working at all, it’s tricky to know what the Altura is up to, or how it is set. Make sure the OCTAVE NEAR and FAR knobs are both set to more or less the 12 o’clock position. This will cause the Altura to transmit notes over one octave, right in the middle of the piano. If the knobs are all far-left (as they sometimes leave the Lab), then the Altura will be set to Octave 1, which is mostly subsonic.