DigiTech RP255 - Manual (Page 48)

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Expression Pedal Calibration
The Expression Pedal on the RP255 needs to be recalibrated for use after a factory reset has been
performed. This calibration procedure is automatically entered after a factory reset procedure.
(You can also initiate the calibration procedure by pressing and holding both Footswitches for
approximately 5 seconds.) In the event the Pedal’s calibration fails, or if the Pedal does not function
properly, it can be re-calibrated using the Pedal Calibration procedure. This will not erase the
User presets. The procedure for Calibrating the Expression Pedal is as follows:
1. Press and hold the Up/Down Footswitches until PDLCAL appears in the display (BYPASS
and tuner will be displayed before PDLCAL is accessed)
2. When the Display prompts you with tOe Dn, rock the Expression Pedal forward (toe down)
and press either Footswitch.
3. When the Display prompts you with tOe uP, rock the Expression Pedal back (toe up) and
press either Footswitch.
4. The Display now prompts you to calibrate the V-Switch sensitivity (VSwxxx), where XXX is the
current V-Switch threshold. Rock the Expression Pedal forward and press firmly on the toe
once to turn the V-Switch on (wah On), and again to turn the V-Switch off (wahOFF).
5. If the V-Switch is too sensitive, press the right Up Footswitch to raise the threshold (range is
0-200). Keep testing the V-Switch sensitivity and adjust the threshold until it only engages when
you want it to (too sensitive a setting will lead to the V-Switch falsely triggering on or off when
using the Expression Pedal).
6. When the V-Switch sensitivity is set to your satisfaction, press both Up/Down Footswitches
simultaneously to exit.
Note: If the Display shows errOr, an error has occurred and steps 2 through 5 should
be repeated.