- 12 -TroubleshootingIf the TV seems to have a problem, first review this list of possible problems and solution. If none of these troubleshooting tips apply, visitsamsung.com, then click on Support, or call Samsung customer service at 1-800-SAMSUNG.Problem Possible SolutionFlickering and Dimming If your Samsung Television is flickering or dimming sporadically, you may need to disable some of its energy efficientfeatures like the Eco Sensor or the Energy Saving feature. Follow the steps below with your remote to turn thesefeatures off or on.y Energy saving : Menu → Setup → Eco Solution → Energy Saving →Select Settingsy Eco Sensor : Menu → Setup → Eco Solution → Eco Sensor →Select SettingsComponent Connections /Screen ColorIf you find that the color on your Samsung television’s screen is not correct or black and white, first run a SelfDiagnosis Test on the TV to make sure there are no device issues.y Self Diagnosis : User Menu → Support → Self Diagnosis → Picture Testy If the test is ok, try making sure ;y Your connections are all consistent. For example, if you’ve used the AV In jack on your TV, make sure you haveused the AV Out jack on your video source.y Try making sure you have connected to the correct jacks. For example, if you use the Component jacks, labeledPb, Pr, and Y, to connect your TV and video source, make sure you have connected the blue Pb jack on thevideo source to the blue Pb jack on the TV, the red Pr jack on the source to the red Pr jack on the TV.Screen Brightness If you find that the colors on your Samsung TV are correct but just a little too dark or bright, there are some settingsyou should check before calling for a repair.y Backlight, Contrast, Brightness, Sharpness, Color, Tint and so on. Go to “Picture” in the Menu, and then tryadjusting these options.Unwanted Powering off If your Samsung TV appears to turn off by itself, there may be an issue with either your Timer settings or your Ecofriendly No Signal Power Off feature.First make sure the Sleep Timer is not accidentally set. The Sleep Timer lets you fall asleep with the TV still onknowing that it will turn off after a certain period of time and not waste energy.y Sleep Timer : User Menu → Setup → Time → Sleep TimerIf the Sleep Timer is not activated, you may have engaged the No Signal Power Off or Auto Power Off feature.y No Signal Power Off : User Menu → Setup → Eco Solution → No Signal Powery Auto Power Off : User Menu → Setup → Eco Solution → Auto Power OffKensington LockThe Kensington Lock is not supplied by Samsung. It is a deviceused to physically fix the system when using it in a public place.Refer to the manual provided with the Kensington Lock for additionalinformation on proper use.✎ Please find a “K” icon on the rear of the TV. The Kensingtonslot is beside the “K” icon.✎ The position and color may differ depending on the model.Assembling the Wire Holder standDisplay Modes (HDMI/DVI Input)Optimal resolution is 1920 x 1080@60Hz.Mode Resolution HorizontalFrequency (KHz)VerticalFrequency (Hz)Pixel ClockFrequency (MHz)Sync Polarity(H / V)IBM 640 x 350 31.469 70.086 25.175 +/-720 x 400 31.469 70.087 28.322 -/+MAC640 x 480 35.000 66.667 30.240 -/-832 x 624 49.726 74.551 57.284 -/-1152 x 870 68.681 75.062 100.000 -/-VESA DMT640 x 480 31.469 59.940 25.175 -/-640 x 480 37.861 72.809 31.500 -/-640 x 480 37.500 75.000 31.500 -/-800 x 600 37.879 60.317 40.000 +/+800 x 600 48.077 72.188 50.000 +/+800 x 600 46.875 75.000 49.500 +/+1024 x 768 48.363 60.004 65.000 -/-1024 x 768 56.476 70.069 75.000 -/-1024 x 768 60.023 75.029 78.750 +/+1152 x 864 67.500 75.000 108.000 +/+1280 x 720 45.000 60.000 74.250 +/+1280 x 800 49.702 59.810 83.500 -/+1280 x 1024 63.981 60.020 108.000 +/+1280 x 1024 79.976 75.025 135.000 +/+1366 x 768 47.712 59.790 85.500 +/+1440 x 900 55.935 59.887 106.500 -/+1600 x 900RB 60.000 60.000 108.000 +/+1680 x 1050 65.290 59.954 146.250 -/+1920 x 1080 67.500 60.000 148.500 +/+