21
ENG
ENGLISH
TROUBLESHOOTING
tRoUBLesHootInG

Check the following before calling for service.

no image appears
Is the power cord of the display
connected?
yCheck and see if the power cord is connected properly to the power
outlet.
Is the power indicator light on?
yPress the Power button.
Is the power on and the power
indicator blue or green?
yAdjust the brightness and the contrast.
Is the power indicator flickering?
yIf the display is in power saving mode, try moving the mouse or
pressing any key on the keyboard to bring up the screen.
yTry to turn on the PC.
Do you see an "OUT OF RANGE"
message on the screen?
yThis message appears when the signal from the PC (video card) is
out of horizontal or vertical frequency range of the display. See the
'Specifications' section of this manual and configure your display
again.
Do you see a "CHECK SIGNAL
CABLE" message on the screen?
yThis message appears when the signal cable between your PC and
your display is not connected. Check the signal cable and try again.
Do you see a "osD LoCKeD" message on the screen?
Do you see “OSD LOCKED” when
you push MENU button?
yYou can secure the current control settings, so that they cannot be
inadvertently changed. You can unlock the OSD controls at any time
by pushing the MENU button for several seconds: the message “OSD
UNLOCKED” will appear.
Display image is incorrect
Display Position is incorrect.
yPress the AUto button to automatically adjust your display image to
the ideal setting.
On the screen background, vertical
bars or stripes are visible.
yPress the AUto button to automatically adjust your display image to
the ideal setting.
Any horizontal noise appearing in
any image or characters are not
clearly portrayed.
yPress the AUto button to automatically adjust your display image to
the ideal setting.
yCheck Control Panel ► Display ► Settings and adjust the display
to the recommended resolution or adjust the display image to the
ideal setting. Set the color setting higher than 24 bits (true color).