Appendices; Troubleshooting; Power Supply; Lcd Screen - Korg Kronos Operation Manual

Troubleshooting

Power supply

Power does not turn on
Is the power cable connected to an outlet? For more
information, see "Connections" on page 20.
Is the POWER switch turned on?
• Turn on the rear panel POWER switch. See
"Turning the power on/off" on page 20.

LCD screen

Display is blank or incorrect
The power is turned on, but nothing is shown in
the LCD screen. However, the KRONOS functions
normally when you play the keyboard or perform
other operations.
Is the LCD screen's backlight brightness adjusted
correctly?
1. Press the GLOBAL switch, and then press the
EXIT switch twice.
2. Hold down the ENTER switch, and press numeric
key 6.
The LCD Setup dialog will appear.
3. Select the Brightness parameter, and increase the
value until the screen is bright enough.
4. Press the OK button to confirm the change.
The power is turned on, but the LCD screen does
not display normally, or an error message is
displayed. There is no sound when you play the
keyboard, and the KRONOS does not function
normally.
It is possible that the system has been damaged. Use
the included Accessory Disks to restore the KRONOS
to its factory state.
HD-1 Program P0: Play page display
The HD‐1's Program P0: Play page can display either
photos or other images representing the sound, or the
Overview/Jump graphics which show the settings of
various important parameters (such as EGs, LFOs, and
so on).
The choice of which to display is controlled by a
combination of the Program P1:Program Basic page's
Play Page MS/WS/DKit Display parameters (one for
each Oscillator) and the Program P0:Play page's Show
MS/WS/DKit Graphics menu command. You can set
these as desired.

Appendices

Startup does not complete
In some cases, the KRONOS will not start up properly
if certain USB storage devices are connected. In this
case, disconnect the USB devices from the KRONOS,
wait about 10 seconds, and then turn on the power
again. You may be able to solve the problem by
formatting the USB device on the KRONOS (see
"Formatting media" on page 188).
For more information, see "1–1h: Play Page
MS/WS/DKit Display" on page 41 of the Parameter
Guide and "Show MS/WS/DKit Graphics," on
page 148 of the Parameter Guide.
Problems using the touch-screen
Can't operate the LCD screen correctly
On the Basic Setup tab of the Global P0 page, use the
Touch Panel Calibration page menu command to
adjust the touch panel response.
Note: If you are unable to select commands from the
page menu, do the following:
1. Press the GLOBAL switch.
2. Press the EXIT switch twice.
3. Hold down the ENTER switch and press 3 on the
numeric keypad.
The Touch Panel Calibration page will appear. Follow
the on‐screen instructions to re‐calibrate the touch
panel.
Can't switch modes or pages
If the KRONOS is doing any of the following, you may
not be able to change modes or switch to a different
page:
• Recording or playing back a song or pattern
• Sampling (if the Sampling REC button is lit)
• Playing a CD on a connected USB CD drive
• Playing a WAVE file
• A menu dialog or select dialog is on the LCD
display
In Combination or Sequencer modes, can't edit
the value of Timbre/Track parameters such as
MIDI Channel or Status
Some parameters can't be edited while notes are
playing, either locally or from MIDI. If the damper
pedal is held down, or if its calibration is incorrect,
notes may be sustaining even if they aren't audible.
247