Harmony G-XT: How to calibrate the pots

Question

How do I calibrate the Harmony G-XT?

Answer

This is how:

  1. While powering on the unit, press and hold "Manual" button and "ON" footswitch, you will see the "FX" light is on. 
  2. Turn the Guitar knob to the furthest LEFT position that it will travel and press "FX". It should start to flash. 
  3. Turn the Guitar knob to the furthest RIGHT position that it will travel and press "FX" again. "FX" should stay on and "Voice 1" should light. 
  4. Repeat steps 2+3 with the "FX" knob and "Voice1" button. 
  5. "Voice1" should stay on and "Voice 2" should light. 
  6. Repeat steps 2+3 with the "Harmony" knob and "Voice 2" button. 
  7. The regular display should kick in a few seconds after completing the process.

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