Dell D420 specifications Mobile Broadband Wwan Cards

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1	metal securing clips (2)	2	WLAN card

NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors and realign the card.

NOTE: Do not insert a Mobile Broadband (WWAN) network card into the WLAN card connector.

4. Install the WLAN card:

NOTICE: To avoid damaging the WLAN card, never place cables on top of or under the card.

NOTE: The WLAN card may have two or three antenna connectors, depending on the type of card you ordered.

a.Move any antenna cables out of the way to make space for the WLAN card.

b.Align the WLAN card with the connector at a 45-degree angle, and press the card down into the securing clips until the card clicks into place.

NOTE: For more specific information about which cable to connect to which connector, see the documentation that came with your WLAN card.

c.Connect the antenna cables to the antenna connectors on the WLAN card by matching the color of the cable to the color of the triangle above the connector. Connect the main antenna cable (white) to the antenna connector with the white triangle. Connect the auxiliary antenna cable (black) to the antenna connector with the black triangle.

NOTE: If your computer has a gray cable, connect it to the connector with the gray triangle, if one is available on your card.

5.Connect the antenna cables to the WLAN card, ensuring that you route the cables correctly.

6.Replace the memory/Mini-Card module cover.

Mobile Broadband (WWAN) Cards

NOTE: Mobile Broadband cards may not be available in all regions.

If you ordered a Mobile Broadband card with your computer, the card is already installed.

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

1. If a Mobile Broadband card is not already installed, go to step 5. If you are replacing a Mobile Broadband card, remove the existing card:

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Contents Dell Latitude D420 Users Guide Abbreviations and AcronymsFront View About Your ComputerDevice status lights Fingerprint reader optional Keyboard and network status lightsLeft View Audio connectorsRight View Network connector RJ-45 USB connectorsModem connector RJ-11 Video 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 MeterLow-Battery Warning Conserving Battery PowerPower Management Modes Standby ModeReplacing the Battery Configuring Power Management SettingsCharging the Battery Hibernate ModeStoring a Battery Card Types Using CardsInstalling a PC Card or 34-mm ExpressCard Card BlanksInstalling a PC Card Installing a Smart Card or Secure Digital SD 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 RateSwapping Primary and Secondary Displays Finding Information What Are You Looking For? Find It HereDell Support Website support.dell.com Service Tag and Microsoft Windows LicenseGuides Select Drivers & Downloads and click GoOperating 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 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 Barbuda0011 ArubaAustralia Sydney Website support.euro.dell.comCosta Rica China XiamenColombia Czech Republic PragueGermany Langen France Paris MontpellierCorporate GreeceJamaica GeneralItaly Milan Website support.jp.dell.comMexico MacaoWebsite support.ap.dell.com Malaysia Penang MontserratSt. Lucia Puerto RicoSt. Kitts and Nevis St. VincentWebsite support.ap.dell.com Thailand Website support.ap.dell.com Taiwan002 Trinidad/TobagoVirgin Islands VenezuelaNumeric Keypad Using the Keyboard and Touch PadKey Combinations Fingerprint Reader optional Power ManagementTouch Pad Speaker FunctionsCustomizing the Touch Pad and Track Stick Changing the Track-Stick CapMouse Properties window Page Network Setup Wizard Setting Up a NetworkPhysically Connecting to a Network or Broadband Modem Wireless Local Area Network WlanSetting Up a New Wlan Checking Your Wireless Network CardWhat You Need to Establish a Wlan Connection Connecting to a Wireless Local Area Network Determining the Wireless Network Device ManagerConnecting 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 GuidesDell Wi-Fi Catcher Network Locator Internet Connection FirewallRecommended Tools Adding and Replacing PartsBefore You Begin Turning Off Your ComputerHard Drive Removing the Hard Drive Dismantling the Hard Drive Replacing the Hard Drive Hinge Cover Keyboard MemoryPage Wireless Local Area Network Wlan Cards Mini-CardsMobile Broadband Wwan Cards Page Subscriber Identity Module SIM Card Internal Card With Bluetooth Wireless Technology Coin-Cell BatteryBack to Contents Dell QuickSet Securing Your Computer Using Smart CardsPasswords Security Cable LockUsing a Hard Drive Password Using a Primary/System PasswordUsing an Administrator Password Trusted Platform Module TPMSecurity Management Software Enabling the TPM FeatureUsing the Security Management Software Activating the Security Management SoftwareComputer Tracking Software If Your Computer Is Lost or StolenSystem 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 DisplayBattery AC AdapterPhysical EnvironmentalAbbreviations and Acronyms Start the Files and Settings Transfer Wizard Transferring Information to a New ComputerClick Files and Settings Transfer Wizard Back to Contents 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 Page Click Start→ Control Panel→ Add or Remove Programs Keyboard Problems Ieee 1394 Device ProblemsExternal Keyboard problems Computer 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 ProblemsWireless Local Area Network Wlan 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 ProblemsIf 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

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