Samsung SyncMaster 400UXN-3 User Manual

Contents

TroubleshootingSelf-Test Feature CheckNoteCheck the following items yourself before calling for assistance. Contact a Service Center forproblems that you cannot solve by yourself.Self-Test Feature Check1. Turn off both your computer and the LCD Display.2. Unplug the video cable from the back of the computer.3. Turn on the LCD Display.The figure shown below ("No Signal") appears on a black background when the LCDDisplay is working normally even though no video signal is detected: While in the Self-Test mode, the LED power indicator remains green and the figure moves around on thescreen.4. Turn off your LCD Display and reconnect the video cable; then turn on both your com-puter and the LCD DisplayIf your LCD Display screen remains blank after using the previous procedure, check yourvideo controller and computer system; your LCD Display is functioning properly.Warning MessagesYou can even view the screen at a resolution of 1920 x 1080. However, you will receive thefollowing message for a minute; You can choose to change the screen resolution or stay inthe current mode during that time. If the resolution is more than 85Hz, you will see the blackscreen because the LCD Display does not support over 85Hz.NoteRefer to Specifications > Preset Timing Modes for the resolutions or frequencies supportedby the LCD Display.Maintenance and Cleaning1) Maintaining the LCD Display Case.Clean with a soft cloth after disconnecting the power cord.