Digitech Whammy 4 came in not functioning correctl…


Digitech Whammy 4 came in not functioning correctly. Incorrect calibration was the issue but following the calibration procedure didn’t resolve the issue. The unit was dropped off minus the 9vac 1.5A supply that comes with the pedal when purchased. Fortunately I have the correct supply so the pedal was being run at the correct voltage. Opening the casing showed the treadle optic to be clean & undamaged. So I moved the LDR slightly closer to the optic & ran the calibration again. This time it calibrated correctly.

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