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Samsung SyncMaster 400UXN-3 User Manual Page 143

Samsung 400uxn3: user guide.
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A:
Check if the signal cable between the computer and the LCD Display is securely con-
nected.
(Refer to Connecting a Computer)
Problems related to the Screen
Note
Problems related to the LCD Display screen and their solutions are listed.
Q:
The screen is blank and the power indicator is off.
A:
Ensure that the power cord is firmly connected and the LCD Display is on.
(Refer to the Connecting a Computer)
Q:
"No Signal" message.
A:
Ensure that the signal cable is firmly connected to the PC or video sources.
(Refer to the Connecting a Computer)
A:
Ensure that the PC or video sources are turned on.
Q:
"Not Optimum Mode" message.
A:
Check the maximum resolution and the frequency of the video Adaptor.
A:
Compare these values with the data in the Preset Timing Modes Chart.
Q:
The picture rolls vertically.
A:
Check if the signal cable is securely connected. Re-connect it, if necessary.
(Refer to Connecting a Computer)
Q:
The image is not clear; picture is blurred.
A:
Run Frequency Coarse and Fine tuning.
A:
Turn on again after removing all accessories (video extension cable, etc.)
A:
Set the resolution and frequency to the recommended ranges.
Q:
The picture image is unstable and shakes.
A:
Check if the resolution and frequency set for the computer video card falls in the range
supported by the LCD Display. If not, reset them referring to the current Information
under the LCD Display menu and Preset Timing Modes.
Q:
Ghost images are shown in the picture.
A:
Check if the resolution and frequency set for the computer video card falls in the range
supported by the LCD Display. If not, reset them referring to the current Information
under the LCD Display menu and Preset Timing Modes.
Q:
The image is too light or too dark.
A:
Adjust the brightness and contrast.
(Refer to the Brightness, Contrast)
Troubleshooting

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