Samsung NP-Q428-DT02VN LCD Brightness Control, Controlling the Brightness Using the Keyboard

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LCD Brightness Control

You can adjust the LCD brightness in 8 levels.

Before You Start!

The LCD brightness is the brightest (Level 8) when the computer is running on AC power, and it becomes dimmer when running on battery power.

Controlling the Brightness Using the Keyboard

You can use the screen brightness control keys after installing Windows and Easy Display Manager.

Adjust the LCD brightness by pressing the Fn +() key or the Fn +() key.

The LCD brightness can change up to 8 levels and the brightness increases by 1 level when

pressing the Fn +() key once.

Maintaining the changed LCD brightness even after turning the computer on again

To maintain the LCD brightness set by using the brightness control keys or through the Power Options, follow the procedures below.

1.Turn the computer on and press the F2 key when the SAMSUNG logo appears on the screen to enter the BIOS Setup.

2.Select the Boot menu and set the Brightness Mode Control item to User Control.

3.Press the F10 key to save the settings and exit Setup.

LCD bad pixels principle of laptop computer

Samsung observes the specifications regarding strict quality and reliability of LCD

But in spite of that, it is inevitable that there might be a small number of bad pixels. A large number of bad pixels can cause problems in appearance, but a small number of pixels doesn't affect the computer performance.

Therefore Samsung observes and manages the following dot principles: - Bright dot : 2 or less

- Black dot : 4 or less

- Combination of Bright and Dark : 4 or less

Instructions for Cleaning the LCD

Clean the LCD panel with a soft cloth lightly moistened with computer cleansing detergent moving in one direction.

Cleaning the LCD panel with excessive force can damage the LCD.

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Contents User Guide Page Contents Page Chapter Page Copyright Safety Precaution NotationsBefore You Start Text NotationsAbout the Product Capacity Representation Standard About HDD Capacity RepresentationAbout Memory Capacity Representation Safety Precautions Installation RelatedKeep the plastic bags out of the reach of children There is a danger of electric shock Power RelatedConnect the power cord to the AC adapter firmly AC Adapter Usage PrecautionsAuthorized Parts Battery Usage RelatedThere is a danger of an explosion or fire Usage RelatedUpgrade Related Failing to do so, may cause electric shock Custody and Movement RelatedInstallation Related Battery Usage Related Use only a battery authorized by Samsung ElectronicsDo not place a heavy object over the product Failing to do so may cause electric shock hazard Repairing the productTake care not to throw or drop a computer part or device Take care when touching the product or partsTake care not to damage the data on a hard disk drive Do not operate or watch the computer while driving a vehicleProper Posture Proper Posture During Computer UseKeep your arm at a right angle as shown by the figure Eye Position Hand PositionOperation Condition Check your volume first to listen to music VolumeUse Time Break Time IlluminationSetting Up your System Important Safety InformationCare During Use Instruction On Safety Operation of NotePC Laser Safety Note Replacement Parts and AccessoriesDo not unplug the power cord out by pulling the cable only General RequirementsRequirements listed below are applicable to all countries Regulatory Compliance Statements Wireless GuidancePage Explosive Device Proximity USA and Canada Safety Requirements and NoticesOther Wireless Devices Use in specific environmentsUnintentional Emitter per FCC Part Intentional emitter per FCC Part FCC Statement for Wireless LAN useFCC Part If fitted with a modem device Intentional Emitter per RSS Unintentional Emitter per ICES-003Brazil European Union CE Marking and Compliance Notices European DirectivesManufacturer Information EU R&TTE Compliance Statements Hungarian MaltiMaltese MagyarBelgium European Economic Area RestrictionsLocal Restriction of 802.11b/802.11g Radio Usage GeneralPage Battery return systems Weee Symbol InformationBasic Items Computer Standard Battery AC Adapter Power Cable User GuideFront View OverviewCaps Lock Status IndicatorsRight View USB PortSecurity Lock Port Left View Bottom View BatteryBattery Latches Back ViewConnect the AC adapter Attaching the BatteryPower Turn on the computerLED Turn on the computerClick Start Turn Off Computer Stand By Using Sleep ModeUsing Sleep Mode in Windows Vista/7 Using Stand by Mode in Windows XPPage Chapter Function KeyboardShortcut Keys Fn+You can turn the LCD on or off after installing Windows XP Media disk Volume Control Screen Brightness ControlNumeric Key Touchpad Right Button TouchpadTouchpad Left Button Scroll AreaInserting and Ejecting a CD Status Indicator Emergency Hole Eject ButtonPage Multi Card Slot Optional To Insert and Use a Memory CardExample SD Card Click Start My computer Using a Mini SD snd RS-MMCTo remove a memory card To format a memory cardAdjusting the Volume Adjusting the Volume using the KeyboardMute Chapter Measuring the Remaining Battery Charge LCD bad pixels principle of laptop computer Controlling the Brightness Using the KeyboardInstructions for Cleaning the LCD LCD Brightness ControlEntering the Bios Setup Bios SetupExit Bios Setup ScreenSetup Menu Help Setup Items Setup Menu DescriptionF5/F6 System Setup KeysSet Supervisor Password item Setting a Boot PasswordSetting a Supervisor Password Setting a User PasswordDeactivating the Password Setting Up a Boot PasswordPriority item Changing the Boot PriorityMemory Slot Upgrading MemoryAdding or Replacing Memory Modules Fixing ScrewRemoving a memory module Battery Installing/Removing the BatteryPrecautions To use the shortcut key to view Charging the BatteryExtending the Battery Usage Time Battery Usage Time InformationDecreasing the LCD Brightness Using the Battery Calibration Function Move to the Boot Smart BatteryHighlight Yes in the Battery Calibration Using the Security Lock Port Page Chapter Product Specifications Energy Star Partner Registered TrademarksPage Page BA81-10343A11100715
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