Using the Keyboard and Touch Pad, Numeric Keypad | Dell D420

Back to Contents Page

Using the Keyboard and Touch Pad

Dell™ Latitude™ D420 User's Guide

Numeric Keypad

Key Combinations

Touch Pad

Fingerprint Reader (optional)

Changing the Track-Stick Cap

Numeric Keypad

The numeric keypad functions like the numeric keypad on an external keyboard. Each key on the keypad has multiple functions. The keypad numbers and symbols are marked in blue on the right of the keypad keys. To type a number or symbol, hold down <Fn> and press the desired key.

•To enable the keypad, press <Num Lk>. The light indicates that the keypad is active.

•To disable the keypad, press <Num Lk> again.

Key Combinations

System Functions

<Ctrl><Shift><Esc> Opens the Task Manager window

Battery

<Fn><F3> Displays the Dell™ QuickSet Battery Meter

Display Functions

<Fn><F8>	Switches the video image to the next display option. The options include the integrated display, an external monitor, and both
	displays simultaneously.

<Fn><F7>	Scales between wide-screen and standard aspect ratio video resolutions.

<Fn> and left-arrow key	Activates the ambient light sensor (ALS), which controls brightness of the display based on light level in the current environment.

<Fn> and up-arrow key	Increases brightness on the integrated display only (not on an external monitor).

<Fn> and down-arrow	Decreases brightness on the integrated display only (not on an external monitor).
key

Image 42

Dell D420 specifications Using the Keyboard and Touch Pad, Numeric Keypad, Key Combinations

Contents

Dell Latitude D420 Users Guide Abbreviations and Acronyms About Your Computer Front ViewDevice status lights Fingerprint reader optional Keyboard and network status lights Audio connectors Left ViewRight View Network connector RJ-45 USB connectorsModem connector RJ-11 Video connector Bottom View Back to Contents Cleaning Your Computer Appendix Macrovision Product Notice FCC Notice U.S. OnlyFCC Class B Checking the Battery Charge Using a BatteryBattery Performance Dell QuickSet Battery Meter Low-Battery Warning Conserving Battery PowerPower Management Modes Standby Mode Replacing the Battery Configuring Power Management SettingsCharging the Battery Hibernate Mode Storing a Battery Card Types Using CardsInstalling a PC Card or 34-mm ExpressCard Card Blanks Installing a Smart Card or Secure Digital SD Card Installing a PC CardInstalling a 34-mm Express Card Removing a PC Card, 34-mm Express Card, or Blank Back to Contents Switching the Video Image Using the DisplayAdjusting Brightness Setting Display Resolution and Refresh Rate Swapping Primary and Secondary Displays Finding Information What Are You Looking For? Find It Here Dell Support Website support.dell.com Service Tag and Microsoft Windows LicenseGuides Select Drivers & Downloads and click Go Operating System CD Glossary Device driver See driver Docking device See APRPage Page NIC See network adapter Page Video resolution See resolution System tray See notification area Back to Contents Obtaining Assistance Online ServicesGetting Help Ftp.dell.com Automated Order-Status Service Problems With Your OrderAutoTech Service Support Service Contacting Dell Diagnostics ChecklistBefore You Call Antigua and Barbuda 0011 ArubaAustralia Sydney Website support.euro.dell.com Costa Rica China XiamenColombia Czech Republic Prague Germany Langen France Paris MontpellierCorporate Greece Jamaica GeneralItaly Milan Website support.jp.dell.com Mexico MacaoWebsite support.ap.dell.com Malaysia Penang Montserrat St. Lucia Puerto RicoSt. Kitts and Nevis St. Vincent Website support.ap.dell.com Thailand Website support.ap.dell.com Taiwan002 Trinidad/Tobago Virgin Islands Venezuela Using the Keyboard and Touch Pad Numeric KeypadKey Combinations Fingerprint Reader optional Power ManagementTouch Pad Speaker Functions Changing the Track-Stick Cap Customizing the Touch Pad and Track StickMouse Properties window Page Network Setup Wizard Setting Up a NetworkPhysically Connecting to a Network or Broadband Modem Wireless Local Area Network Wlan Checking Your Wireless Network Card Setting Up a New WlanWhat You Need to Establish a Wlan Connection Connecting to a Wireless Local Area Network Determining the Wireless Network Device Manager Connecting to a Mobile Broadband Network Mobile Broadband or Wireless Wide Area Network WwanEnabling/Disabling the Wireless Network Card Under Pick a Help topic, click Dell User and System Guides Dell Wi-Fi Catcher Network Locator Internet Connection Firewall Recommended Tools Adding and Replacing PartsBefore You Begin Turning Off Your Computer Hard Drive Removing the Hard Drive Dismantling the Hard Drive Replacing the Hard Drive Hinge Cover Keyboard MemoryPage Wireless Local Area Network Wlan Cards Mini-Cards Mobile Broadband Wwan Cards Page Subscriber Identity Module SIM Card Internal Card With Bluetooth Wireless Technology Coin-Cell Battery Back to Contents Dell QuickSet Securing Your Computer Using Smart CardsPasswords Security Cable Lock Using a Hard Drive Password Using a Primary/System PasswordUsing an Administrator Password Trusted Platform Module TPM Security Management Software Enabling the TPM FeatureUsing the Security Management Software Activating the Security Management Software Computer Tracking Software If Your Computer Is Lost or Stolen System Setup Screens System Setup ProgramViewing the System Setup Screens Commonly Used Settings Enabling the Infrared Sensor Performing a One-Time BootChanging COM Ports Locate Fast IR under Onboard DevicesPage Reinstalling Drivers and Utilities Reinstalling SoftwareWhat Is a Driver? Drivers Software and Hardware Incompatibilities Using the Drivers and Utilities CDManually Reinstalling Drivers Click Start→ Help and Support Undoing the Last System Restore Using Microsoft Windows XP System RestoreCreating a Restore Point Restoring Your Operating System Reinstalling Windows XP Using the Operating System CDEnabling System Restore Before You Begin Specifications Audio CommunicationsVideo Display Battery AC Adapter Physical Environmental Abbreviations and Acronyms Start the Files and Settings Transfer Wizard Transferring Information to a New Computer Click Files and Settings Transfer Wizard Back to Contents Packing the Computer Traveling With Your ComputerIdentifying Your Computer Travel Tips Back to Contents Dell Diagnostics TroubleshootingDell Technical Update Service When to Use the Dell Diagnostics Dell Diagnostics Main Menu Option Function Dell Support Utility Drive ProblemsAccessing the Dell Support Utility Clicking the Dell Support Icon Problems writing to a CD/DVD-RW drive CD and DVD drive problemsHard drive problems If you hear an unfamiliar scraping or grinding sound Mail, Modem, and Internet Problems Error MessagesVerify that the modem is communicating with Windows Page Click Start→ Control Panel→ Add or Remove Programs Ieee 1394 Device Problems Keyboard ProblemsExternal Keyboard problems Computer does not start up Lockups and Software ProblemsUnexpected characters Computer stops responding Other software problems Memory ProblemsNetwork Problems Solid blue screen appears Mobile Broadband Network PC Card or ExpressCard ProblemsWireless Local Area Network Wlan Restart the computer and log on to the network again Power Problems Ensuring Sufficient Power for Your ComputerDocking Power Considerations AC Power Loss While the Computer Is Docked Printer ProblemsScanner Problems Docking While the Computer Is Running No sound from headphones Sound and Speaker ProblemsTouch Pad or Mouse Problems No sound from integrated speakers Video and Display Problems If the display is blankIf the display is difficult to read Click Start→ Control Panel→ Appearance and Themes Adjust the Windows display settingsIf only part of the display is readable Connect an external monitor