Getting Ready to Play
8
Using headphones
Connect the stereo mini plug of a pair of commercially avail-
able headphones to the headphones jack on the rear panel. The 
headphone jack will output the same signal as the OUTPUT L/
MONO and R jacks.
  Using headphones at high volume for an extended time 
may cause hearing damage. Avoid excessively high volume 
levels.
Headphones
Using a pedal switch or foot 
controller
Plug the pedal switch or foot controller (sold separately) into 
the FOOT CONTROLLER jack on the rear panel.
Configure the pedal function (page 25) and polarity 
(page 25) in Setting mode, to match the device you are 
connecting with the i3.
Pedal switch, foot controller
Connecting a pedal switch
The Korg PS-1/PS-3 pedal switches and the Korg DS-1H damper 
pedal will function as a damper switch. As with the damper 
pedal on a piano, you can use a pedal with this instrument to 
sustain the notes you play, even after taking your fingers off 
the keyboard.
Note: 
Note that the damper effect does not work on the lower 
part (page 13).
Note: 
The i3 does not support the half-damper function.
Connecting a foot controller
Connect a Korg EXP-2 foot controller to control the volume of 
the keyboard part (page 12).
Using a USB flash drive
To use a commercially-available USB flash drive, turn off the 
power on the i3 and plug the flash drive into the USB TO DE-
VICE port on the rear panel. The USB icon (
) will be shown 
in the top right of the display when you turn the power back 
on.
USB flash drive
USB icon
Display
Note: 
When removing or plugging in the USB flash drive, be 
sure to turn off the power on the i3 first.
Note: 
Make sure that the USB flash drive is facing the right 
direction when you insert it. If you try to push the drive in the 
wrong way too hard, the port on the instrument or the drive 
itself may break, or you may lose your data.
Note: 
Note that you may not be able to correctly play back or 
record data when using certain USB flash drives. For details, 
see the Korg website.
Tip: 
If    does not display, turn off the power and reconnect 
the USB flash drive.
Storage media that can be used
The i3 supports the use of USB flash drives and storage devic-
es in FAT16 or FAT32 format.
Supported capacities
FAT32: Up to 2 TB (2,000 GB)
FAT16: Up to 4 GB
Formatting a USB flash drive
Be sure to format (initialize) the USB flash drive on the i3 be-
fore using it for the first time.
1
1
3,4,5
2,4,5
1. 
Hold down the EXIT (SHIFT) button and press the SET-
TING button to enter Media mode.
2. 
Turn the dial or press the + button to select “Media For-
mat”.
“Push[ENTER]” will appear on the display.
3. 
Press the CATEGORY u (ENTER) button.
“Data Erase?“No”” will be displayed.
4. 
Turn the dial to select “OK,” and press the CATEGORY u 
(ENTER) button.
“Sure?” will be displayed.