Dell LT System manual Trouble With Keyboard/Glide Pad, Trouble With Peripherals

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Trouble With Keyboard/Glide Pad

Question: Why doesn't the keyboard or the glide pad function?

∙Perform a software reset by pressing Ctrl+Alt+Delete.

∙If you cannot perform a software reset, slide and hold the power switch for more than five seconds to turn off the system. Five seconds later, turn the computer on.

∙If you still cannot turn off the system with the power switch, slide the reset switch on the bottom of your computer to turn off the system. Five seconds later, turn on the computer by sliding the power switch.

Question: Why doesn't the glide pad function correctly?

∙Confirm the surface of the glide pad is completely dry and free from dirt and grease.

∙Confirm the item Internal Pointing Device in the Advanced menu of the Setup Utility is enabled.

Trouble With Peripherals

Question: Why don't expansion or peripheral devices function?

∙Confirm they are correctly connected to your computer or the external floppy disk drive.

∙Confirm the external floppy disk drive is connected correctly to the computer if peripheral devices are connected to the external floppy disk drive.

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Confirm drivers necessary for operating ports on the devices are installed.

There may not be a free IRQ (Interrupt). Free up an IRQ from a built-in device.

Question: Why can't I print?

∙Make sure the printer is turned on.

∙Check whether the external floppy disk drive and the printer are connected correctly.

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Check whether the printer has enough paper.

Check whether the printer driver is installed.

Make sure LPT Port in the Advanced menu of the Setup Utility is set correctly.

Troubleshooting B-5

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Contents

Dell Latitude LT System Copyright EditionTrademarks Declaration of Conformity FCC StatementAbout the Modem Copyright Viii Blue Neutral Brown Live Page Class B for typical domestic areas CE NoticeXii Usage Safety PrecautionsGeneral LocationDischarging Battery Pack PrecautionsHandling ChargingModem Precautions Recording Important Information Manual Conventions Xviii Front Overview of ComputerRight Left Rear Bottom Xxii Table of Contents Security Features Turning Power On Quick SetupDell Latitude LT System User’s Guide Properties Dialog Box in Windows Setting Up the Windows Operating SystemShutting Down the System Basic Operations Choosing Power SourceAbout the Power Indicators Indicator Light MeaningPower Switch Resetting the SystemUsing the AC Adapter Warm BootReset Switch Using the Glide PadClick, Double-click, and Right-click Using the Glide PadPlace Your Fingertip Move Your FingertipWindows Logo Keys Using the KeyboardChanging the Configuration ScrollConnecting External Floppy Disk Drive Unit Using External Floppy Disk Drive UnitHandling Floppy Disks Removing External Floppy Disk Drive UnitInserting Inserting and Removing a Floppy DiskRemoving Backing Up Data Formatting a Floppy DiskDell Latitude LT System User’s Guide Standard Battery Pack Battery and Power ManagementChecking the Battery Level Initializing the Battery Pack Charging the Battery PackLow Battery Indication Changing the Battery Pack Connecting External Battery Pack Optional External Battery PackRemoving External Battery Pack Charging External Battery Pack Disposing of the BatteryInitializing External Battery Pack Setting in the Setup Utility Power ManagementStopping Power Supply to the Hard Disk Stopping Power Supply to the DisplayBefore Suspending the System Suspend ModesEntering the Suspend Modes Resuming From Suspend-to-Disk Mode Resuming From Suspend-to-RAM ModeSetup Utility Disabling Power ManagementDell Latitude LT System User’s Guide Connecting a Peripheral Device Using PeripheralsPeripherals Peripheral Connection Overview Inserting a PC Card PC CardEjecting a PC Card Using a PS/2 Mouse Connecting the Optional External CD-ROM DriveKeyboard/Mouse Display Using a Serial MouseDisplaying the Screen on an External Monitor Changing Resolution and Number of Colors Switching the DisplayResolutions and Colors you can choose Audio System Connecting Audio EquipmentConnecting Microphone To output the computer’s audio signal to audio equipmentPrinter Setting the Setup UtilityInstalling a Printer Driver USB DeviceRS-232C Device Communication Functions Setting for Infrared CommunicationInfrared Communication Communicating With a Personal Computer IR ModeLogical Port Turning Off the IR CommunicationBuilt-in Modem not available in some countries Connecting the Modem to a Telephone LineSetting Communications Software Setting Communication InformationWhen setting items in the Setup Utility Security FeaturesPasswords Supervisor Password and User PasswordIf you share the computer with others Setting the PasswordDeleting the Password If you use the computer personallyPreventing Infection of Computer Viruses Security Slot Entering and Exiting the Setup Utility Setup UtilityRunning the Setup Utility Contents of the Setup UtilityUsing the Setup Utility Main Menu Advanced Menu Security Menu Power Down after, Video Power Down after and Auto Suspend Power MenuBuilt-in modem may not be available in some countries Exit MenuDell Latitude LT System User’s Guide Help Tools Getting HelpWorld Wide Web Sales@dell.com AutoTech ServiceFtp.dell.com Support@us.dell.comTechConnect BBS TechFax ServiceAutomated Order-Status System Problems With Your Order Technical Support ServiceBefore You Call Contacting DellInternational Dialing Codes International Country Country City Access Code City CodeAustralia Sydney Dell Contact NumbersAustria Vienna Brunei Belgium BrusselsCanada North York, Ontario Denmark Horsholm Chili SantiagoChina Xiamen Czech Republic PragueFrance Paris/Montpellier Finland HelsinkiGermany Langen Ireland Bray Hong KongLatin America Italy MilanJapan Kawasaki Korea SeoulMacau LuxembourgMalaysia Penang Netherlands Amsterdam Mexico Colonia GranadaNew Zealand Poland Warsaw Norway LysakerSingapore Singapore Spain Madrid South Africa JohannesburgSweden Upplands Vasby Taiwan Switzerland GenevaThailand A. Austin, Texas BracknellDell Home and Small Business Group Spare Parts Sales Toll free DellWare Dell Latitude LT System User’s Guide Maintenance Maintenance and SpecificationsCleaning the Computer Traveling With the Computer Parts Specifications SpecificationsOptions Common Problems TroubleshootingQuestion Why doesnt the power switch function? Trouble When StartingTrouble With Display Question Why is the screen blank?Trouble With Floppy Disks Trouble With Hard DiskTrouble With Peripherals Trouble With Keyboard/Glide PadTrouble With Communication Other Troubles Question Why is the date and/or time incorrect?Dell Latitude LT System User’s Guide Limited One-Year Warranty U.S. and Canada Only General Provisions Total Satisfaction Return Policy U.S. and Canada Only Dell Latitude LT System User’s Guide Software Previous ProductsAdditional Information Dell Latitude LT System User’s Guide Index IndexDell Latitude LT System User’s Guide Year 2000 compliance, C-5