Wooyoung Telecom HL900D LCD MONITOR User Manual manual 4 of 4

Wooyoung Telecom Co., Ltd. LCD MONITOR manual 4 of 4

manual 4 of 4

1110TroubleshootingWhat you seeEnsure that the power cord is firmly connected and the LCDmonitor is on.“OUT OF RANGE” message“NO SIGNAL” messageScreen is blank and power indictoris off�Check the maximum resolution and the frequency of thevideo adaptor.�Compare these values with the data in the Display ModesTiming Chart.�Ensure that the signal cable is firmly connected to the PCor video sources.�Ensure that the PC or video sources are turned on.The image is too light or too dark �Adjust the Brightness and Contrast.�Refer to the Brightness/ContrastThe image color is not good �Adjust the Color �Refer to the ColorImage is not centered on thescreen �Executes Auto Configuration.Screen is blank and power indicatorlight is steady amber or blinksevery 0.5 or 1 seconds�The monitor is using its power management system.�Move the computer’s mouse or press a key on the key-board.Image is not stable and mayappear to vibrate�Check that the display resolution and frequency from yourPC or video board is an available mode for your monitor.On your computer check : Control Panel, Display, Settings�Note : Your monitor supports multiscan display functionswithin the following frequency domain:Suggested Actions6This monitor has a built-in power management system called DPMS Power SavingMode. This system saves energy by switching your monitor into a low-power modewhen it has not been used for a certain period of time. The available modes are “ON”,“Standby”, “Suspend”, and “OFF”. DPMS Power Saving Mode ONStateStanbymodeSuspendmodeOFFActiveH-syncInactiveActiveInactiveActiveV-syncActiveInactiveInactiveActiveRGBSignalBlankedBlankedBlankedPowerConsumptionUnder40WattLessthan2Watt-RecoveryTimeGreenAmberAmberAmberLED Color andOperting statusWithin2Sec
21*1*1 : For HL900D Only.

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