Samsung SyncMaster 721N User Manual page 34

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There is no image on the
screen.
Is the power indicator on the
monitor blinking at 1 second
intervals?
The screen shows
Is the screen displaying only
strange colors or
one color as if looking at the
just black and
screen through a cellophane
white.
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?
The screen
Have you changed the video
suddenly has
card or the driver?
become
Have you adjusted the
unbalanced.
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.
The screen is out
Have you adjusted the
of focus or OSD
resolution or frequency on the
cannot be
monitor?
adjusted.
LED is blinking but
Is the frequency properly
no images on the
adjusted when checking the
screen.
Display Timing on the menu?
There are only 16
Have the Windows colors been
colors shown on
set properly?
the screen.
The screen colors
have changed after
changing the video
Has the video card been set
card.
properly?
There is a
Have you installed the monitor
message that
driver?
reads
See the video card manual to
"Unrecognized
see if the Plug & Play (VESA
monitor, Plug &
DDC) function can be
Play (VESA DDC)
supported.
monitor found".
Check when
MagicTune™ feature is found
MagicTune™ does
only on PC (VGA) with
not function
Window OS that supports Plug
properly.
and Play.
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 a 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
* To check whether your PC is
available for MagicTune™ feature,
follow the
steps below (When Windows is
XP);
Control Panel -> Performance and
Maintenance -> System ->
Hardware -> Device Manager ->
Monitors -> After deleting Plug and
Modes).
Modes).
Instructions.
Instructions.

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