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Page 29 of 46
Chapter 3 Troubleshooting
If a problem still remains after applying the suggested remedies, contact your local dealer.
• No picture problems→See No. 1 and 2 in (PC ±nput Signal), No. 1 and 2 in (HDM± ±nput Signal)
• ±maging problems→See No. 1 - 6 in (Common), No. 3 - 7 in (PC ±nput Signal), No. 3 in (HDM± ±nput Signal)
• Other problems→See No. 7 - 12 in (Common), No. 8 in (PC ±nput Signal), No. 4 and 5 in (HDM± ±nput Signal)
• USB problems→See No. 9 in (PC ±nput Signal)
Possible cause and remedy
The screen is too bright or too dark.
Adjust <Brightness> or <Contrast> from the <Color>
(The LCD monItor backlIght has a ixed lIfe span. When
the screen becomes dark or begIns to ±Icker, contact
your local dealer.)
Use a screen saver or off timer function for a long-time
Afterimages are particular to LCD monitors. Avoid
displaying the same image for a long time.
Green/red/blue/white dots or defective dots remain
on the screen.
This is due to LCD panel characteristics and is not a
±nterference patterns or Ingerprints remain on the
Leave the monitor with a white screen. The symptom
Noise appears on the screen.
° When utilizing [ContrastEnhancer] and/or
[OutlineEnhancer] function, the normal images may not
be displayed since the display gradation abnormality or
noise may occur on the screen depending on the display
Characters are pigmentized.
° When [OutlineEnhancer] is set excessively, the
characters on the screen may be affected by color.
No sound/Volume control is not available.
° Check whether the audio cable is connected properly.
Check whether a headphone is connected to the
Adjust the sound volume.
Sound volume varies depending on the equipment
° Adjust the volume difference between the equipment
connected by the <Sound Level> in the <Sound> menu.
The monitor turns off suddenly.
° Check whether the [Off Timer] function is set. Check the
[Off Timer] setting. (
Refer to “Remote Control Guide”.
° Check whether “Disable” is set in the <Signal Detection>
of the <Monitor Settings> menu. (Refer to
Unselectable menu items
° The selectable menu items differ depending on the input
signal. Please check the Setting menu list.
(Refer to “Setting menu list” on
Switches do not operate.
° Check whether the switches are locked. (Refer to
Remote control does not work.
° Check whether the remote control point at the detector.
° Check that there are not obstacles between the remote
control and the detector.
° Check whether the battery power is run out.
° Check whether the battery is installed in the right