Samsung LS24F9NSM-ZA - Manual (Page 70)

5-2 Troubleshooting
5-2 Before Requesting Service
Please check the following before requesting After-Sales service. If the problem continues, please contact your nearest
Samsung Electronics Service Center.
PROBLEMS RELATED TO INSTALLATION (PC MODE)
The monitor screen flickers. Check if the signal cable between the computer and the monitor is securely
connected and tightened.
(Refer to Connecting to a Computer)
Blank spaces are found at the top and bottom of
the screen when an HDMI or HDMI-DVI cable is
connected to the monitor and PC. Blank spaces on the screen are not caused by the monitor.
The cause of the problem is the PC or graphics card, and can be fixed by
adjusting the screen size in the HDMI or DVI option of the graphics card
settings menu.
If the graphics card settings menu has no option to adjust the screen size,
update the graphics card driver to the latest version.
(Please contact the graphics card or computer manufacturer for details on
how to adjust the screen settings.)
PROBLEMS RELATED TO SCREEN
Screen is blank and power indicator is off. Ensure that the power cord is firmly connected and the product is on.
(Refer to Connecting to a Computer)
<Check Signal Cable> message Ensure that the signal cable is firmly connected to the PC or video sources.
(Refer to Connecting to a Computer)
<Mode not supported> message Check the maximum resolution and the frequency of the video adapter.
Compare these values with the data in the Standard Signal Mode Table.
Picture rolls vertically. Check if the signal cable is securely connected.Connect it again securely.
(Refer to Connecting to a Computer)
Image is not clear. Picture is blurred. Run Frequency <Coarse> and <Fine> tuning.
Turn on again after removing all accessories(video extension cable, etc.)
Set resolution and frequency to the recommended ranges.
Picture image is unstable and vibrates. Check if the resolution and frequency set for the computer video card falls
in the range supported by the monitor. If not, reset them referring to the
current <Information> under the monitor menu and Standard Signal Mode
Table.
Ghost images are shown in the picture.
The image is too light or too dark Adjust the <Brightness> and <Contrast>.
(Refer to the <Brightness>, <Contrast>)
The display brightness can differ according to the mode set for <MagicAn-
gle>.
If <MagicBright> is set to <Dynamic Contrast>, the display brightness can
differ according to the input signal.
Screen is blank and the power indicator light
blinks every 0.5 or 1 seconds The monitor is using its power management system.
Press a key on the keyboard.
The screen is blank and is blinking. If you see the <TEST GOOD> message on the screen when you press the
[MENU] button, check the cable connection between the monitor and the
computer to ensure that the connector is properly connected.