Samsung NL22B Troubleshooting Guide, Checking the Resolution and Frequency, Check the following

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Chapter. 7

Troubleshooting Guide

Requirements Before Contacting Samsung Customer Service Center

Before calling Samsung Customer Service Center, test your product as follows.

If the problem persists, contact Samsung Customer Service Center.

Checking the Resolution and Frequency

When a mode exceeds the supported resolution (refer to “Preset Timing Modes”), the message “Not Optimum Mode” will appear briefly.

Check the following.

Screen issue

Troubleshooting	Solutions

The power LED is off.	Make sure that the power cable is connected.
The screen will not
switch on.
The screen is not clear.	Set the resolution and frequency to the recommended level.
The screen is blurry.
The screen is too bright.	Adjust the Brightness setting.
The screen is too dark.

Troubleshooting	Solutions

Screen color is	Adjust the COLOR settings.
inconsistent.
The colors on the screen	Adjust the COLOR settings.
have a shadow and are
distorted.
White does not really	Adjust the COLOR settings.
look white.
There is no image on the	The product is operating in power-saving mode.
screen and the power	Press any key on the keyboard or move the mouse to return
LED blinks every 0.5 to 1	Press any key on the keyboard or move the mouse to return
second.	to normal operating mode.
Audio issues

Troubleshooting	Solutions

There is no sound.	Check that the source device connected to the product is
	powered on.
The volume is too low.	Adjust the volume.
	If the volume is still low after turning it up to the maximum
	level, adjust the volume on your PC sound card or software
	program.

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Contents

NL22B Contents Configuring the Sound Settings Before Using the Product CopyrightSecuring the Installation Space Safety PrecautionsSymbols Precautions for storageElectricity and Safety Installation and Safety Operation and Safety GAS Before Using the Product Precautions for Using the Product Cleaning Checking the Contents PreparationComponents Checking the ComponentsItems sold separately Parts External SensorRemote Control Rear ViewTo place batteries in the remote control Adjusting the OSD with the Remote ControlRemote Control Reception Range Product dimensions Using the Product Connecting to a USB Device ConnectionsLAN Connection Pre-connection CheckpointsConnecting the Power Changing the ResolutionPutting in Devices for Display in the NL22B Playing Image or Video files from USB Memory G\MagicInfoSlideScreen Setup Configuring ModeConfiguring Custom ModeConfiguring Color Control Color ControlPicture Reset Changing the Lamp Control SettingRestoring the default settings Picture Reset Lamp ControlConfiguring the Sound Settings Auto Volume Configuring Auto VolumeConfiguring SRS TS XT Sound ResetRestoring the default settings Sound Reset Setup and Reset Configuring LanguageChanging the Setting for Clock Set LanguageSetting Sleep Timer Configuring Timer1/Timer2/Timer3Setting Holiday Management Changing Password Change PIN Safety LockConfiguring Lock Setting Pixel Shift Safety ScreenConfiguring Timer Configuring Bar Configuring EraserConfiguring Pixel Setting Side Grey Power On Adjustment Advanced Settings Setting Power On Adjustment Configuring Fan & TemperatureChanging the Auto Power Setting Setting Lamp ScheduleChanging the OSD Display Settings Setup ResetResetting Setup Setup Reset Reset All Resetting All Settings Reset AllTroubleshooting Guide Checking the Resolution and FrequencyScreen issue Audio issuesResolution? Specifications GeneralPowerSaver SpecificationsPreset Timing Modes Appendix Contact Samsung World WideEurope CIS Asia Pacific Responsibility for the Pay Service Cost to Customers Not a product defectCorrect Disposal Product damage caused by customer’s faultOthers Optimum Picture Quality and Afterimage Burn-in Prevention Optimum Picture QualityWhat is afterimage burn-in? Prevention of Afterimage Burn-inMove and change text every 30 minutes as shown below Terminology