Samsung 720N - SyncMaster - 17" LCD Monitor Owner's Manual - Page 30

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The screen shows

strange colors or just

black and white.

The screen suddenly

has become

unbalanced.

The screen is out of

focus or OSD cannot

be adjusted.

LED is blinking but no

images on the screen.

There are only 16

colors shown on the

screen.

The screen colors

have changed after

changing the video

card.

There is a message

that reads

"Unrecognized

monitor, Plug & Play

(VESA DDC) monitor

found".

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

1. Check if the power cord and the video cables 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 56 Hz ~ 75 Hz.

(Do not exceed 75 Hz 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.

There is no image on the screen.

Is the power indicator on the monitor

blinking at 1 second intervals?

Is the screen displaying only one

color as if looking at the screen

through a cellophane paper?

Have the screen colors become

strange after running a program or

due to a crash between

applications?

Has the video card been set

properly?

Have you changed the video card or

the driver?

Have you adjusted the resolution or

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.

Have you adjusted the resolution or

frequency on the monitor?

Is the frequency properly adjusted

when checking the Display Timing

on the menu?

Have the Windows colors been set

properly?

Has the video card been set

properly?

Have you installed the monitor

driver?

See the video card manual to see if

the Plug & Play (VESA DDC)

function can be supported.

Please change to the recommended

mode during this one-minute period.

(The message is displayed again if

the system is rebooted.)

The monitor is in PowerSaver mode.

press any key on the keyboard to

activate the monitor and restore the

image on the screen.

Check the signal cable connection.

Make sure the video card is fully

inserted in it's slot.

Reboot the computer.

Set the video card by referring to the

video card manual.

Adjust screen image position and

size using the OSD.

Adjust the resolution and frequency

at the video card.

(Refer to the

Preset Timing

Adjust the resolution and frequency

of the video card.

(Refer to the

Preset Timing

Adjust the frequency properly by

referring to the video card manual

and the

Preset Timing

Modes.

(The maximum frequency per

resolution may differ from product to

product.)

Windows ME/2000/XP:

Set the colors properly at the

Control Panel → Display →

Settings .

Set the video card by referring to the

video card manual.

Install the monitor driver according

to the

Driver Installation

Install the monitor driver according

to the

Driver Installation

Modes).

Instructions.