Samsung S27A750D, S23A750D user manual Troubleshooting Guide

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