noisy, and video mode not supported, etc. In this case, first check the source of the problem, and thencontact the Service Center or your dealer.Judging the monitor's working conditionIf there is no image on the screen or a "Not Optimum Mode", "Recommended Mode 1920 x 120060 Hz" message comes up, disconnect the cable from the computer while the monitor is still poweredon.If there is a message coming up on the screen or if the screen goes white, this means the monitor is inworking condition.In this case, check the computer for trouble.Check ListNoteBefore calling for assistance, check the information in this section to see if you can remedy any prob-lems yourself. If you do need assistance, please call the phone number on the Information section orcontact your dealer.No images on the screen. I cannot turn on the monitor.Q: Is the power cord connected properly?A: Check the power cord connection and supply.Q: Can you see "Check Signal Cable" on the screen?A: (Connected using the D-sub cable)Check the signal cable connection.(Connected using the DVI cable)If you still see an error message on the screen when the monitor is connected properly, check tosee if the monitor status is set to analog.If you still see an (error) message on the screen when the monitor is connected properly, checkto see if the monitor status is set to analog. Press ‘ /SOURCE’ button to have the monitordouble-check the input signal source.Q: If the power is on, reboot the computer to see the initial screen (the login screen), which can beseen.A: If the initial screen (the login screen) appears, boot the computer in the applicable mode (thesafe mode for Windows ME/XP/2000) and then change the frequency of the video card.(Refer to the Preset Timing Modes)If the initial screen (the login screen) does not appear, contact the Service Center or your deal-er.Q: Can you see "Not Optimum Mode", "Recommended Mode 1920 x 1200 60 Hz" on the screen?A: You can see this message when the signal from the video card exceeds the maximum resolutionand frequency that the monitor can handle properly.A: Adjust the maximum resolution and frequency that the monitor can handle properly.Troubleshooting78