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Troubleshooting
Consult the following table for troubleshooting a problem.
Symptom
The monitor displays nothing. (The power lamp doesn't
illuminate.)
The monitor displays nothing. (The power lamp is blinking
red.)
The monitor displays nothing. (The power lamp illuminates
orange.)
The monitor becomes dark, fl ickers, or displays nothing
though it was displaying images properly.
There are black spots (which don't illuminate) or bright
spots (which stay illuminated) on the monitor.
The monitor has uneven brightness.
Faint vertical stripes appear on the monitor.
Flickers and moire patterns appear when a fi ne pattern is
displayed.
Lines aren't displayed in correct width.
"Afterimage" appears on the non-display area.
The contrast varies depending on the viewing angle
The display quality varies.
A faint object persists on the screen even after switching
the displayed image.
The monitor fl ickers (when connected via a distributor).
Others
Symptom
The resolution and
Signals aren't input/output correctly in rare
number of colors
cases.
cannot be changed/
When your computer's operating system isn't
they are fi xed.
Windows®, it may not be able to recognize
the driver for the graphic board correctly.
Check that the power cord is connected securely.
Using other device, check that the wall outlet is receiving
power.
Check that the main power switch isn't off.
An error may have occurred. Contact your MITSUBISHI
dealer.
Blinking red
0.5 sec. 3 times
0.5 sec. 1 time
0.5 sec. 4 times
0.5 sec. 2 times
The monitor displays nothing when the power saving
function of your computer is active. Hit any key on the
keyboard or move the mouse.
Connect the signal cable correctly.
Check that the computer isn't turned off.
Replace the LCD panel with new one. Contact your MIT-
SUBISHI dealer.
They are not a failure, but due to the characteristics of
the LCD panel.
This symptom may occur depending on the displayed im-
ages. This is not a failure, but due to the characteristics
of the LCD panel.
This symptom may occur depending on the displayed im-
ages. This is not a failure, but due to the characteristics
of the LCD panel.
This symptom may occur when a fi ne pattern is dis-
played. This is not a failure, but due to the characteris-
tics of the LCD panel.
This symptom may occur when an image of other than
3840x2160 resolution is displayed. This is not a failure,
but due to the characteristics of the LCD panel.
This symptom may occur when the entire monitor isn't
fi lled with the display area and the same image is kept
displayed for a long time. This is not a failure, but due to
the characteristics of the LCD panel.
Depending on the viewing angle (angle at which you view
the monitor), the contrast varies. This is not a failure, but
due to the characteristics of the LCD panel.
Because the LCD panel uses a fl uorescent light, its
display quality varies with the lapse of the operating time.
In addition, the display quality is affected by the ambient
temperature. This is not a failure, but due to the charac-
teristics of the LCD panel.
This symptom called "afterimage" may occur when the
same still picture is kept displayed for a long time. The
faint object fades away gradually by turning off the moni-
tor or displaying a motion picture. Sometimes it cannot
be eliminated but this is not a failure.
Connect the monitor and the computer directly each
other, not via a distributor.
Cause
EN-11
Cause and remedy
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1 sec. 1 time
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Remedy
Turn off the monitor and the computer and turn
them back on.
Reinstall the driver for the graphic board. As
for reinstallation, see the user's guide of your
computer or consult the support center for your
computer.
Reference
page
P.9
-
P.7
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Power error
Fan error
Temperature error
Memory check error
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P.4, P.10
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P.4, P.10
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Reference
page
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