TU-3: Factory Reset (Initialization)

The following procedure restores the TU-3 to the factory settings.

1. Turn off the power.
2. Hold down the [MODE] button and insert the plug into the INPUT jack.
   The center LED of the meter lights up in green.
3. Press the [MODE] button again within 3 seconds.
   The center LED of the meter flashes in green three times.
   The factory default settings are restored, and the unit goes to its normal mode.
   * If more than a few seconds elapse without pressing MODE, or if any button other than MODE is pressed, the unit goes to its normal mode without restoring the factory default settings.