Dell 1704FPV User Guide - Page 26
General Problems, Analog Input, Digital Input
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OSD Warning Messages One of the following warning messages may appear on the screen indicating that the monitor is out of sync. 1. Analog Input Cannot Display This Video Mode or 2.Digital Input Cannot Display This Video Mode This means that the monitor cannot synchronize with the signal that it is receiving from the computer. Either the signal is too high or too low for the monitor to use. See Monitor Specifications for the Horizontal and Vertical frequency ranges addressable by this monitor. Recommended mode is 1280 X 1024 @ 60Hz. Occasionally, no warning message appears, but the screen is blank...this could also indicate that the monitor is not synchronizing with the computer or the monitor is in a power save mode. General Problems The following table contains general information about common monitor problems you might encounter. COMMON SYMPTOMS No Video/ Power LED off WHAT YOU EXPERIENCE No picture, monitor is dead POSSIBLE SOLUTIONS Check connection integrity at both ends of the video cable Ensure the monitor and computer are plugged in to a working electrical outlet Ensure power button depressed fully No Video/ Power No picture or no LED on brightness Press the input select button the front of the monitor and ensure the correct input source is selected Increase brightness & contrast controls Perform monitor self-test feature check Check for bent or broken pins Re-boot your computer and monitor. Poor Focus Picture is fuzzy, blurry or ghosting Push Auto adjust button Adjust Phase and Clock controls via OSD Eliminate video extension cables Perform monitor reset Lower video resolution or increase font size Shaky/Jittery Video Wavy picture or fine movement Push Auto Adjust button Adjust Phase and Clock controls via OSD Perform monitor reset Check environmental factors Relocate and test in other room Missing Pixels LCD screen has spots Cycle power on-off These are pixels that are permanently off and is a natural defect that occurs in LCD technology Brightness Problems Picture too dim or too bright Perform monitor reset Push Auto Adjust button Adjust brightness & contrast controls Geometric Distortion Screen not centered correctly Perform monitor reset on "Position Settings Only" Push auto-adjust button Adjust the centering controls Ensure monitor is in proper video mode Horizontal/Vertical Screen has one or more Lines lines Perform monitor reset Push Auto Adjust button