9Troubleshooting Guide

Screen issue

 

 

"Not Optimum Mode" is displayed.

This message appears if 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 (page 75).

 

 

The images on the screen look distorted.

Check the cable connection to the product (Refer

 

to "3.3 Connecting and Using a PC")

 

 

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. (Refer to "10.1 General")

 

 

The screen appears unstable and shaky.

Check that the resolution and frequency for the

 

PC are within the range of resolution and

There are shadows or ghost images left on the

frequency compatible with the product, and if

screen.

required, change the settings, referring to

 

 

Standard Signal Mode Table (page 75) in this

 

manual and the INFORMATION menu on the

 

product.

 

 

The screen is too bright. The screen is too dark.

Adjust Brightness(page 40) and Contrast(page

 

40).

 

 

Screen color is inconsistent.

Change the COLOR settings. (Refer to "

 

Configuring Tint" ON PAGE 44)

 

 

The colors on the screen have a shadow and are

Change the COLOR settings.

distorted.

(Refer to " Configuring Tint" ON PAGE 44)

 

 

 

White does not really look white.

Change the COLOR settings.

 

(Refer to " Configuring Tint" ON PAGE 44)

 

 

There is no image on the screen and the power

The product is in power-saving mode.

LED blinks every 0.5 to 1 second.

 

Press any key on the keyboard or move the

 

 

mouse to return to the previous screen.

 

 

 

 

Sound issue

 

 

There is no sound.

Check the connection of the audio cable or adjust

 

the volume.

 

 

 

Check the volume.

 

 

9 Troubleshooting Guide 68

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Samsung S27A750D, S23A750D user manual Sound issue