Dell D520 specifications PC Card or ExpressCard Problems, General, Mobile Broadband Network

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CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

General

Check the network cable connector — Ensure that the network cable is firmly inserted into both the network connector on the back of the computer and the network connector.

Check the network lights on the network connector — No light indicates that no network communication exists. Replace the network cable.

Restart the computer and log on to the network again

Check your network settings — Contact your network administrator or the person who set up your network to verify that your network settings are correct and that the network is functioning.

Mobile Broadband Network

NOTE: The Dell Mobile Broadband Card Utility user's guide is located under Help and Support. You can also download the user's guide from support.dell.com.

NOTE: The icon appears in the notification area if the computer has a Dell Mobile Broadband card installed. Double-click the icon to launch the utility.

Cannot connect — The Dell Mobile Broadband Card must be activated on the network in order to connect. Position the mouse over the icon in the notification area to read the status of the connection. If the status indicates the mobile broadband card is not activated, see Activate your Mobile Broadband card for more information. If problems persist, contact your Mobile Broadband service carrier for details on your plan.

Check your Mobile Broadband network service — Contact your Mobile Broadband service carrier to verify coverage plan and supported services.

Check the status in the Dell Mobile Broadband Card Utility — Click the icon in the taskbar to launch the utility. Check the status in the main window:

•No card detected – Restart the computer and launch the utility again.

NOTE: f you are unable to connect to a wireless network, ensure that you have all the components for establishing a WLAN (see What You Need to Establish a WLAN Connection), and then verify that your wireless network card is enabled by pressing <Fn><F2>.

You can turn your computer's wireless networking function on and off by pressing the <Fn><F2> key combination. If the wireless networking function is turned on, press <Fn><F2> to disable it. If the wireless networking function is turned off, press <Fn><F2> to enable it.

•Wireless Disabled – Press <Fn><F2> or right-click the icon to verify that your wireless network ExpressCard is enabled.

•Searching – The Dell Mobile Broadband Card Utility has not yet located a Mobile Broadband network. If the searching state persists, ensure that the signal strength is adequate.

•No service – The Dell Mobile Broadband Card Utility did not locate a Mobile Broadband network. Ensure that the signal strength is adequate. Restart the Dell wireless utility or contact your Mobile Broadband network provider.

•Check your WWAN service – Contact your Mobile Broadband network service provider to verify coverage plan and supported services.

Activate your Mobile Broadband card — Before you connect to the Internet, you must activate the Mobile Broadband service through your cellular service provider. For instructions and for additional information about using the Dell Mobile Broadband Card Utility, see the user's guide available through the Windows Help and Support Center. To access the Help and Support Center, see Windows Help and Support Center. The user's guide is also available on the Dell Support website at support.dell.com and on the CD included with your Mobile Broadband card if you purchased the card separately from your computer.

PC Card or ExpressCard Problems

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

Check the card — Ensure that the card is properly inserted into the connector. If you are using an ExpressCard, ensure that you insert the card into an adapter before you insert it into the card slot

Ensure that the card is recognized by Windows — Double-click the Safely Remove Hardware icon in the Windows taskbar. Ensure that the card is listed.

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Contents Dell Latitude D520 Users Guide Abbreviations and AcronymsFront View About Your ComputerDevice status lights Keyboard status lights Audio connectors Left ViewRight View USB connectorsBack View Video TV-out connector Modem connector RJ-11Network connector RJ-45 Serial connectorBottom View Back to Contents Cleaning Your Computer AppendixFCC Notice U.S. Only Macrovision Product NoticeFCC Class B Checking the Battery Charge Using a BatteryBattery Performance Dell QuickSet Battery MeterConserving Battery Power Power Management ModesHibernate Mode Configuring Power Management SettingsCharging the Battery Click Start→ Shut Down→ Stand byReplacing the Battery Storing a BatteryCard Types Using CardsInstalling a PC Card or ExpressCard Card BlanksRemoving a Card or Blank ExpressCardSwitching the Video Image Using the DisplayAdjusting Brightness Setting Display Resolution and Refresh RateClick Settings in the Display Properties window Swapping Primary and Secondary DisplaysFinding Information Find It HereDell Support Website support.dell.com GuidesSelect Drivers & Downloads and click Go Windows Help and Support Center Glossary Device driver See driver Docking device See APRPage Page NIC See network adapter Page Video resolution See resolution System tray See notification areaBack to Contents Obtaining Assistance Online ServicesGetting Help Ftp.dell.comAutomated Order-Status Service Problems With Your OrderAutoTech Service Support ServiceContacting Dell Diagnostics ChecklistBefore You Call Antigua and BarbudaAustralia Sydney Argentina Buenos AiresAruba 0011011 Canada North YorkOntario Cayman IslandsDominican Republic Denmark CopenhagenDominica EcuadorGuyana GrenadaGuatemala Hong KongJapan Kawasaki JamaicaWebsite support.jp.dell.com Korea SeoulNetherlands Antilles MexicoMontserrat Netherlands AmsterdamSt. Vincent St. Kitts and NevisSt. Lucia Grenadines002 Switzerland GenevaTaiwan Website support.ap.dell.com ThailandVirgin Islands A. Austin, Texas BusinessVenezuela Numeric Keypad Using the Keyboard and Touch PadKey Combinations Speaker Functions Power ManagementTouch Pad Microsoft Windows Logo Key FunctionsCustomizing the Touch Pad Mouse Properties windowAdjusting the Volume Using MultimediaPlaying a CD or DVD Using Blank CDs and DVDs Adjusting the PictureHow to Copy a CD or DVD Copying CDs and DVDsHelpful Tips Connecting Your Computer to a TV or Audio DeviceMedia Type Read Write Rewritable Video and Standard Audio Composite Video and Standard AudioSetting Up the Cyberlink CL Headphones Click the DVD Audio Setting icon Click Device SettingsNetwork Setup Wizard Setting Up a NetworkPhysically Connecting to a Network or Broadband Modem Wireless Local Area Network WlanConnecting a Wireless Router and a Broadband Modem Checking Your Wireless Network CardSetting Up a New Wlan Start Button and Connect To OptionDetermining the Wireless Network Device Manager Connecting to a Wireless Local Area NetworkUnder Pick a Help topic, click Dell User and System Guides Enabling/Disabling the Wireless Network Card Mobile Broadband or Wireless Wide Area Network WwanConnecting to a Mobile Broadband Network Internet Connection Firewall Recommended Tools Adding and Replacing PartsBefore You Begin Turning Off Your ComputerHard Drive Returning a Hard Drive to Dell Media BayRemoving the Device Security Screw Removing and Installing Media Bay Devices Hinge CoverKeyboard Memory Page Wireless Cards Wireless Local Area Network Wlan CardsInternal Card With Bluetooth Wireless Technology Coin-Cell BatteryBack to Contents Dell QuickSet Securing Your Computer PasswordsUsing a Primary/System Password Security Cable LockComputer Tracking Software Using an Administrator PasswordUsing a Hard Drive Password If Your Computer Is Lost or StolenBack to Contents System Setup Screens System Setup ProgramViewing the System Setup Screens Commonly Used SettingsEnabling 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? DriversSoftware and Hardware Incompatibilities Using the Drivers and Utilities CDManually Reinstalling Drivers Click Start→ Help and SupportUndoing the Last System Restore Using Microsoft Windows XP System RestoreCreating a Restore Point Restoring Your Operating SystemReinstalling Windows XP Using the Operating System CDEnabling System Restore Before You BeginSpecifications Audio CommunicationsVideo DisplayTouch Pad BatteryKeyboard AC AdapterPhysical EnvironmentalDell Latitude D520 Users Guide Packing the Computer Traveling With Your ComputerIdentifying Your Computer Travel TipsBack to Contents Dell Diagnostics TroubleshootingDell Technical Update Service When to Use the Dell DiagnosticsDell Diagnostics Main Menu Option FunctionDell Support Utility Drive ProblemsAccessing the Dell Support Utility Clicking the Dell Support IconProblems writing to a CD/DVD-RW drive CD and DVD drive problemsHard drive problems If you hear an unfamiliar scraping or grinding soundError Messages Mail, Modem, and Internet ProblemsVerify that the modem is communicating with Windows CD drive controller failure Click Start→ Control Panel→ Add or Remove Programs External Keyboard problems Ieee 1394 Device ProblemsKeyboard Problems If you have problems with an Ieee 1394 deviceComputer does not start up Lockups and Software ProblemsUnexpected characters Computer stops respondingOther software problems Memory ProblemsNetwork Problems Solid blue screen appearsMobile Broadband Network PC Card or ExpressCard ProblemsGeneral Restart the computer and log on to the network againEnsuring Sufficient Power for Your Computer Power ProblemsDocking Power Considerations AC Power Loss While the Computer Is Docked Printer ProblemsScanner Problems Docking While the Computer Is RunningNo sound from headphones Sound and Speaker ProblemsTouch Pad or Mouse Problems No sound from integrated speakersIf the display is blank Video and Display ProblemsCheck the touch pad settings If the display is difficult to readClick Start→ Control Panel→ Appearance and Themes Adjust the Windows display settingsIf only part of the display is readable Connect an external monitor
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D520 specifications

The Dell D520 is a robust and reliable laptop that was introduced as part of Dell's Latitude series, catering primarily to business professionals and enterprises. Known for its solid build and practical features, the D520 emphasizes productivity and durability in a mobile computing environment.

One of the standout features of the Dell D520 is its comfortable keyboard layout. The full-sized, spill-resistant keyboard offers a tactile feel, making it ideal for extended typing sessions. Additionally, the touchpad is responsive, enhancing ease of navigation while on the go. The laptop's design prioritizes ease of use, ensuring that users can work efficiently, whether in an office or while traveling.

In terms of hardware, the Dell D520 typically features Intel processors, which provide a balanced mix of performance and power efficiency. This enables users to run multiple applications without significant lag, making it suitable for multitasking. The laptop is also equipped with a decent amount of RAM, ensuring smooth performance for standard business applications and tasks.

The D520 includes various connectivity options, crucial for modern-day professionals. It typically comes with several USB ports, an Ethernet port, and a VGA port for connecting to external displays. There is also the option for Wi-Fi connectivity, allowing users to connect to networks effortlessly.

One of the key characteristics of the Dell D520 is its durability. The laptop is designed to withstand the rigors of daily use and features a sturdy chassis that can handle rough treatment. This durability makes it a favorite among users who need a reliable machine that can endure a busy workday.

The D520 also emphasizes security features that are essential for business users. It includes options for fingerprint readers and smart card readers, allowing users to enhance data protection. This level of security is particularly valuable for professionals handling sensitive information.

Battery life is another important aspect of the Dell D520. With an efficient power management system, users can expect a reasonable battery performance that allows for extended work sessions without needing to recharge frequently.

Overall, the Dell D520 combines practicality, durability, and efficiency, making it an excellent choice for business professionals who require a reliable laptop for everyday tasks. Its balance of features and performance continues to make it a suitable option for users who prioritize functionality and dependability in their computing devices.
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