14Trouble Troubleshooting TipNo Picture ⇒ The signal cable should be properly connected to thedisplay card and computer.⇒ Try disconnecting the video cable from the display andconnecting to a CRT display if available to confirm thepresence of proper video.⇒ Make sure power is connected to the proper DC or ACsource.⇒ Make sure the resolution mode is supported by the display andcheck settings of the display card.⇒ Confirm that the video cable is not defective.Image Persistence Image persistence occurs when a ghost of an image remains onthe screen after the monitor has been turned off. Unlike a CRTmonitor, an LCD monitor’s image persistence is not permanent.To erase an image ghost, turn the monitor off for as long as theimage was displayed. If the image was on for one hour and theghost of the image remains, the display should be turned off forone hour to erase the image. To avoid this problem, use a screensaver.Picture Quality & Image Stability ⇒ Check for proper video cable for proper grounding andshielding.⇒ Check the signal source for proper signal.⇒ Check for proper adjustment of the Phase and Frequencycontrols.⇒ Check for proper recommended signal timing.Green LED not lit Check for proper power and power connectionsGreen LED blinking This indicates absence of video or proper video for this displayDisplay image is not properlysized⇒ Adjust the Vertical and Horizontal size controls via the OSD.(Reference setup adjustments)⇒ Ensure that a supported mode is selected on the display cardor system being used. Consult the display card or systemmanual for proper video.No S-Video or NTSC operation ⇒ Check for proper connections.⇒ Check the setup instructions for proper input selection.If these tips do not solve your problem, contact Vartech Systems Customer Service support.TroubleshootingTROUBLESHOOTINGTROUBLESHOOTING5Section