Samsung LS27HUBCBS/EDC, LS27HUBCB/EDC manual Refer to the Preset Timing Modes

Is the power indicator on the monitor blinking at 1 second intervals?

Press a key on the keyboard to activate the monitor and restore the image on the screen.

If there is still no image, press the '' button.

Then press any key on the keyboard again to activate the monitor and restore the image on the screen.

Connected using the DVI cable?

I cannot see the	Have you locked
On Screen	the On Screen
Display.	Display (OSD)
	Menu to prevent
	changes?
The screen shows	Is the screen
strange colors or	displaying only one
just black and	color as if looking at
white.	the screen through
	a cellophane
	paper?

You may get a blank screen if you boot the system before you connect the DVI cable, or disconnect and then reconnect the DVI cable while the system is running as certain types of graphic cards do not send out video signals.

Connect the DVI cable and then reboot the system.

Unlock the OSD by pressing the [] button for at least 5 seconds.

Check the signal cable connection.

Make sure the video card is fully inserted in its slot.

	Have the screen	Reboot the computer.
	colors become
	strange after
	running a program
	or due to a crash
	between
	applications?
	Has the video card	Set the video card by referring to the video card manual.
	been set properly?
The screen	Have you changed	Adjust screen image position and size using the OSD.
suddenly has	the video card or
become	the driver?
unbalanced.
	Have you adjusted	Adjust the resolution and frequency at the video card.
	the resolution or	(Refer to the Preset Timing Modes).
	frequency to the
	monitor?
	The screen can be unbalanced due to the cycle of the video card signals.
	Readjust Position by referring to the OSD.
The screen is out	Have you adjusted	Adjust the resolution and frequency of the video card.
of focus or OSD	the resolution or	(Refer to the Preset Timing Modes).
cannot be	frequency on the
adjusted.	monitor?
LED is blinking but	Is the frequency	Adjust the frequency properly by referring to the video
no images on the	properly adjusted	card manual and the Preset Timing Modes.
screen.	when checking the	(The maximum frequency per resolution may differ from
	Display Timing on	product to product.)
	the menu?
There are only 16	Have the Windows	Windows XP :
colors shown on	colors been set	Set the resolution at the Control Panel → Appearance
the screen. The	properly?	and Themes → Display → Settings.
screen colors have
changed after		Windows ME/2000 :
changing the video		Set the resolution at the Control Panel → Display →
card.		Settings.
	Has the video card	Set the video card by referring to the video card manual.
	been set properly?