51
Not Optimum Mode
is displayed.
This message appears when the signal from the graphics card exceeds the maximum resolution or
frequency for the product.
Change the maximum resolution and frequency to suit the product performance, referring to
Standard Signal Mode Table (
The images on the screen look distorted.
Check the cable connection to the product.
The screen is not clear. The screen is blurry.
Remove any accessories (video extension cable, etc.) and try again.
Set the resolution and frequency to the recommended level.
The screen appears unstable and shaky. There are shadows or ghost images left on the screen.
Check that the resolution and frequency for the PC are within the range of resolution and frequency
compatible with the product. Next, if required, change the settings, referring to Standard Signal
Mode Table (
) in this manual and the
Information
menu on the product.
The screen is too bright. The screen is too dark.
Adjust
Brightness
and
Contrast
.
Screen color is inconsistent.
Change the
Color
settings.
The colors on the screen have a shadow and are distorted.
Change the
Color
settings.
White does not really look white.
Change the
Color
settings.
There is no image on the screen and the power LED blinks every 0.5 to 1 second.
The product is operating in power-saving mode.
Press any key on the keyboard or move the mouse to return to normal operating mode.
Text is blurry.
If using a Windows OS (e.g. Windows 7, Windows 8, Windows 8.1 or Windows 10): Go to
Control Panel
Fonts
Adjust ClearType text
and change
Turn on ClearType
.
Video playback is choppy.
Playback of high-definition large video files can be choppy. This may be because the video player is
not optimized for the computer resource.
Try playing the file on another video player.
Sound issue
There is no sound.
Check the connection of the audio cable or adjust the volume.
Check the volume.
The volume is too low.
Adjust the volume.
If the volume is still low after turning it up to the maximum level, adjust the volume on your PC sound
card or software program.
Video is available but there is no sound.
Sound cannot be heard if a HDMI-DVI cable is used to connect the input device.
Connect the device using an HDMI cable, DP cable or USB Type-C cable.
Source device issue
A beeping sound is heard when my PC is booting.
If a beeping sound is heard when your PC is booting, have your PC serviced.
―
The LED lights on the frame of the product may be seen depending on the user's viewing angle. The light is
harmless to people and has no bearing on product features and performance. The product is safe to use.
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