Samsung 753S, 753v manual Screen is out of focus

Check List

Symptom	Check List	Solutions
The screen is out of focus	Have you adjusted the	Adjust the resolution and frequency of
or OSD cannot be adjusted.	resolution or frequency on	the video card.
	the monitor?	(Refer to the Preset Display Modes).
The screen is partially	Are there any magnetic	Enter the OSD and perform a
distorted.	products such as an adapter,	"Degauss".
	speaker or a high voltage
	wire near the monitor?	Keep the monitor away from any
		magnetic products.
LED is blinking but no	Is the frequency properly	Adjust the frequency properly by
images on the screen.	adjusted when checking the	referring to the video card manual and
	Display Timing on the menu?	the Preset Display Modes.
		(The maximum frequency per
		resolution may differ from product to
		product.)
There are only 16 colors	Have the Windows colors	For Windows ME/XP/2000:
shown on the screen. The	been set properly?	Set the colors properly at the Control
screen colors have		Panel, Display, Settings.
changed after changing the
	Has the video card been set	Set the video card by referring to the
video card.
	properly?	video card manual.

Check the following items if there is trouble with the monitor.

1.Check if the power cord and the cable are properly connected to the computer.

2.Check if the computer beeps more than 3 times when booting.

(If it does, request an after-service for the main board of the computer.)

3.If you installed a new video card or if you assembled the PC, check if the installed the adapter (video) driver and the monitor driver.

4.Check if the scanning ratio of the video screen is set at 75Hz or 85Hz. (Do not exceed 60Hz when using the maximum resolution.)

5.If you have problems in installing the adapter (video) driver, boot the computer in Safe Mode, remove the Display Adapter at the "Control Panel, System, Device Administrator" and then reboot the computer to reinstall the adapter (video) driver.

Note: If problems repeatedly occur, contact an authorized service center.