Samsung 757DFX Computer Monitor User Manual


 
User’s Manual 55
Troubleshooting
If there is something wrong with the input signal, a message appears on the screen or the screen goes blank
although the power indicator LED is still on. The message may indicate that the monitor is out of scan range
or that you need to check the signal cable.
The location and the position of the monitor may influence the quality and other features of the monitor.
1. If there are any woofer speakers near the monitor, unplug and relocate the woofer to another room.
2. Remove all electronic devices such as radios, fans, clocks and telephones that are within 3 feet (one meter)
of the monitor.
3. Degauss the monitor if any devices were removed from the area.
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A monitor recreates visual signals received from the PC. Therefore, if there is trouble with the PC or the video
card, this can cause the monitor to become blank, have poor coloring, noise, Sync. Out of Range, etc. In this
case, first check the source of the problem, and then contact a service center or your dealer.
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Judging the monitor's working condition
If there is no image on the screen or an "Sync. Out of Range" message comes up, disconnect the cable from
the computer while the monitor is still powered on.
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If there is a message coming up on the screen or if the screen goes white, this means the monitor is in
working condition.
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In this case, check the computer for trouble.
Self-Test Feature Check
Werning Messages
Environment
Useful Tips