The LCD Display screen flickers. Display is securely connected.(Refer to Connecting a Computer)Problems related to the ScreenNote• Problems related to the LCD Display screen and their solutions are listed.Problems SolutionsThe screen is blank and the powerindicator is off.z Ensure that the power cord is firmly connected and the LCDLCD Display is on.(Refer to the Connecting the LCD Display )"Check Signal Cable" message. z Ensure that the signal cable is firmly connected to the PC orvideo sources.(Refer to the Connecting the LCD Display )z Ensure that the PC or video sources are turned on."Not Optimum Mode " message. z Check the maximum resolution and the frequency of the videoAdaptor.z Compare these values with the data in the Preset Timing ModesChart.The picture rolls vertically. z Check if the signal cable is securely connected.Re-connect it, if necessary.(Refer to Connecting a Computer)The image is not clear; picture isblurred.z Run Frequency Coarse and Fine tuning.z Turn on again after removing all accessories(video extension cable, etc.)z Set the resolution and frequency to the recommended ranges.The picture image is unstable andshakes.Ghost images are shown in thepicture.z Check if the resolution and frequency set for the computer videocard falls in the range supported by the LCD Display.If not, reset them referring to the current Information under theLCD Display menu and Preset Timing Modes.The image is too light or too dark. z Adjusts the brightness and contrast.(Refer to the Brightness, Contrast)The screen color is inconsistent.The color image is distorted bydark shadows.The color white is poor.z Adjust color using Custom under OSD Color Adjustment menu.The power Indicator blinks green. z The LCD Display is currently saving the changes made to thesettings to the OSD memory.The screen is blank and the powerindicator light is steady green orblinks every 0.5 or 1 seconds.z The LCD Display is using its power management system.z Press a key on the keyboard.The screen is blank and it isblinking.z If you see the "TEST GOOD" message on the screen when youpressing the MENU button, check the cable connection betweenthe LCD Display and the computer to ensure that the connectoris properly connected.Problems related to AudioNote