RD-700GXF, RD-700GX: Setting the RD-700GX USB Driver
Use the following procedure to set the RD-700GX internal USB driver.
1. Press the EDIT button.
2. Use the up and down cursor buttons to select "0. SYSTEM," and then press the ENTER button.
3. Use the left and right cursor buttons to switch menus, and then use the up and down cursor buttons to select "USB Driver."
4. Use the DEC/INC buttons or the Value dial to select the USB driver.
5. Press the F1 (WRITE) button.
6. Turn the power off, and then on again.