RD-300SX: Setting the RD-300SX Pedal Polarity
Use the following procedure to change the polarity of the RD-300SX pedal:
1. Press EDIT so it is lit.
2. Use the INC / DEC buttons to select "SYS" in the display.
3. Press ENTER.
4. Press the flashing STRINGS/PAD button so it flashes red.
5. Use the INC / DEC buttons to select:
Std = Standard polarity
rEv = Reverse polarity
6. Press WRITE to display "SUr"
7. Press ENTER to confirm the write procedure.
8. When the write procedure is finished, press EXIT several times to return to the main display.