Troubleshooting | 73
Product specific problems
Specific
symptoms
What you
experience
Possible solutions
Screen image is
t
oo small
Image is
centered on
screen, but does
not fill entire
viewing area
• Reset the monitor to factory settings.
Cannot adjust
the mo
nitor with
the buttons on
the front panel
OSD does not
appear on the
screen
• Turn off the monitor, unplug the power cord,
plug it back, and then turn on the monitor.
• The OSD menu may be locked. Press and hold
the Menu
/function button next to the Power
button for 4 seconds to unlock.
No Input Signal
wh
en user
controls are
pressed
No picture, the
LED light is off
• Check the signal source. Ensure the computer is
not in the power saving mode by moving the
mouse or pressing any key on the keyboard.
• Check whether the signal cable is plugged in
properly. Re-plug the signal cable if necessary.
• Reset the computer or video player.
The picture does
not fill the entire
screen
The picture
cannot fill the
height or width
of the screen
• Due to different video formats (aspect ratio), the
monitor may display in full screen.
• Run the built-in diagnostics.
Image retention
fr
om a static
image left on the
monitor for a
long period of
time
Faint shadow
from the s
tatic
image displayed
appears on the
screen
• Use the Power Management feature to turn off
the monitor at all times when not in use (for more
information, see Power management modes).
• Alternatively, use a dynamically changing
screensaver.
• Perform the function of Pi
xel Refresh or Panel
Refresh. See OLED Panel Maintenance.
Unevenness in
lu
minance or
color of the
screen images
Visible spots
(bright or dark)
or lines or Mura
appear on the
screen
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