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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 you installed the adapter(video) driver and the monitor driver. 4. Check if the scanning ratio of the video screen is set at 56Hz or 85Hz. (Do not exceed 60Hz 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. The following table lists possible problems and their solutions. Before calling for service, check the information in this section to see if you can remedy any problems yourself. If you do need assistance, please call the phone number on the Information section or contact your dealer. Installation | Screen | Audio | Remote Control 1. Problems related to Installation Problems related to the monitor installation and their solutions are listed. Problems Solutions It appears the PC does notfunction normally. ..Check if the Display Adapter Driver (VGA Driver) is properly installed. (Refer to Installing Driver) 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) TV screen is blurred or shows noise signals. ..Check if the TV antenna connector is securely connected to the external antenna. (Refer to Connecting to TV) TV signal is not received ..Check "Channel system" and make sure you choose the correct channel system. (Refer to the Channel System) ..Select "Auto program" to configure the channel system automatically. (Refer to the Auto Program) Strange characters appear on the screen. ..Switch "Caption On" to "Caption Off" if strange characters appear on the TV screen. (Refer to Caption) 2. Problems related to Screen Problems related to the monitor screen and their solutions are listed. Problems Solutions Screen is blank and powerindicator is off ..Ensure that the power cord is firmly connected and the LCD monitor is on. (Refer to the Connecting the Monitor) "Check Signal Cable" message ..Ensure that the signal cable is firmly connected to the PC or video sources. (Refer to the Connecting the Monitor) ..Ensure that the PC or video sources are turned on. "Not Supported Mode" message ..Check the maximum resolution and the frequency of the video adapter. ..Compare these values with the data in the Preset Timing Modes Chart. 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 isblurred. ..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 andvibrates. ..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 Preset Timing Modes.Ghost images are shown in thepicture. The image is too light or too dark ..Adjust the Brightness and Contrast. (Refer to the Brightness, Contrast) Screen color is inconsistent. ..Adjust color using Custom under OSD Color Adjustment menu. Color image is distorted withdark shadows. White color is poor. Power Indicator blinks green. ..The monitor is currently saving the changes made in settings to the OSD memory. Screen is blank and powerindicator light is steady green orblinks every 0.5 or 1 seconds ..The monitor is using its power management system. ..Press a key on the keyboard "Not Supported Mode" message ..Check the maximum resolution and the frequency of the video adapter. ..Compare these values with the data in the Preset Timing Modes Chart. 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 isblurred. ..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 andvibrates. ..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 Preset Timing Modes.Ghost images are shown in thepicture. The image is too light or too dark ..Adjust the Brightness and Contrast. (Refer to the Brightness, Contrast) Screen color is inconsistent. ..Adjust color using Custom under OSD Color Adjustment menu. Color image is distorted withdark shadows. White color is poor. Power Indicator blinks green. ..The monitor is currently saving the changes made in settings to the ...