Use the following steps to calibrate the on-board Expression Pedal on the GT-5:
1. Power on while holing PEDAL ASSIGN and NAME.
2. Press PARAMETER right repeatedly to select "17. CALIBRATE EXP."
3. Move the EXP pedal fully to the heal-back position.
4. Press WRITE.
5. Move the EXP pedal fully to the toe-end position.
6. Press WRITE.
When finished, turn off the power and then back on again.
1. Power on while holing PEDAL ASSIGN and NAME.
2. Press PARAMETER right repeatedly to select "17. CALIBRATE EXP."
3. Move the EXP pedal fully to the heal-back position.
4. Press WRITE.
5. Move the EXP pedal fully to the toe-end position.
6. Press WRITE.
When finished, turn off the power and then back on again.