If the display is difficult to read, 121 | Dell JU373 instruction

S W I T C H T H E V I D E O I M A G E — If your computer is attached to an external monitor, press <Fn><F8> to switch the video image to the display.

If the display is difficult to read

AD J U S T T H E B R I G H T N E S S — Press <Fn> and the up- or down-arrow key.

MO V E T H E E X T E R N A L S U B W O O F E R A W A Y F R O M T H E C O M P U T E R O R M O N I T O R — If your external speaker system includes a subwoofer, ensure that the subwoofer is at least 60 cm (2 ft) away from the computer or external monitor.

E L I M I N A T E P O S S I B L E I N T E R F E R E N C E — Turn off nearby fans, fluorescent lights, halogen lamps, or other appliances.

R O T A T E T H E C O M P U T E R T O F A C E A D I F F E R E N T D I R E C T I O N — Eliminate sunlight

glare, which can cause poor picture quality.

AD J U S T T H E W I N D O W S D I S P L A Y S E T T I N G S —

1 Click Start→ Control Panel→ Appearance and Themes.

2 Click the area you want to change or click the Display icon.

3 Try different settings for Color quality and Screen resolution.

R U N T H E VI D E O D I A G N O S T I C S T E S T S — If no error message appears and you still have a display problem, but the display is not completely blank, run the Video device group in the Dell Diagnostics (see "Dell Diagnostics" on page 103). If the problem persists, contact Dell (see "Contacting Dell" on page 149).

S E E "E R R O R M E S S A G E S " — If an error message appears, see "Error Messages" on page 111.

If only part of the display is readable

C O N N E C T A N E X T E R N A L M O N I T O R —

1 Shut down your computer and connect an external monitor to the computer.

2 Turn on the computer and the monitor and adjust the monitor brightness and contrast controls.

If the external monitor works, the computer display or video controller may be defective. Contact Dell (see "Contacting Dell" on page 149).

Troubleshooting

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Dell JU373 manual If the display is difficult to read, If only part of the display is readable, 121

Contents

User’s Guide August JU373 Contents Customizing the Touch Pad Contents Accessing Power Options Properties Using a Monitor as Your Primary Display Mobile Broadband/Wireless Wide Area Network Wwan Checking Your Wireless Network CardInstalling a PC Card or ExpressCard Microsoft Windows Firewall 103 101 Viewing the System Setup Screens When to Use the Dell Diagnostics 127 124141 142 Macrovision Product Notice Automated Order-Status Service Contents Contents What Are You Looking For? Find It Here Finding Information At support.dell.com May not ship with your computer What Are You Looking For? Service Tag and Microsoft Windows License Label Dell Support Website support.dell.com Dell Support Utility Windows Help and Support Operating System Media Finding Information Front View About Your Computer Power button About Your Computer Y B O a R D S T a T U S L I G H T S Left Side View D I O C O N N E C T O R S Back View Right Side View Network connector RJ-45 Connects serial devices, such as a mouse or handheld device About Your Computer Bottom View About Your Computer Transferring Information to a New Computer Setting Up Your ComputerMicrosoft Windows XP To prepare a new computer for the file transfer Setting Up Your Computer Microsoft Windows Vista Turning Off Your Computer Setting Up Your Computer Battery Performance Using a Battery Dell QuickSet Battery Meter Checking the Battery Charge Check the Battery Charge Microsoft Windows Power MeterCheck the Battery Health Charge Gauge Low-Battery Warning Conserving Battery Power Standby and Sleep Mode Power Management ModesHibernate Mode Accessing Power Options Properties Configuring Power Management SettingsWindows XP Windows Vista Replacing the Battery Charging the Battery Storing a Battery Numeric Keypad Using the Keyboard Key Combinations BatterySystem Functions CD or DVD Tray Speaker Functions Power ManagementMicrosoft Windows XP Logo Key Functions TAB Microsoft Windows Vista Logo Key Functions Touch Pad Customizing the Touch Pad Adjusting Brightness Using the DisplayUsing a Projector Windows Vista Using Both a Monitor and Your Computer Display Click the Settings tab→ Advanced→ Displays tab Using a Monitor as Your Primary Display Windows Vista Using the Display Playing CDs or DVDs Using Multimedia DVD player includes the following basic buttons Adjusting the Volume Connecting Your Computer to a TV or Audio Device Adjusting the Picture Video TV-out connector Connector Output connector Video and Standard Audio Video and S/PDIF Digital Audio Composite video adapter Composite Video and Standard Audio Standard audio cable Composite Video and S/PDIF Digital Audio Composite video adapter Component Video and Standard Audio Component video adapter Component Video and S/PDIF Digital Audio Component video adapter Enabling S/PDIF Digital Audio Enabling S/PDIF in the Windows Audio Driver Setting Up the Cyberlink CL Headphones Click Advanced Enabling the Display Settings for a TV Connecting a Network or Broadband Modem Cable Setting Up and Using Networks What You Need to Establish a Wlan Connection Wireless Local Area Network Wlan Start Button and Connect To Option Checking Your Wireless Network CardOrder Confirmation for Your Computer Setting Up and Using Networks Determining the Wireless Network Device Manager Connecting to a Wlan Completing the Connection to the Wlan Click Start→ Settings→ Control Panel→ Network Connections Enabling/Disabling the Wireless Network Card Mobile Broadband/Wireless Wide Area Network Wwan Checking Your Dell Mobile Broadband Card Microsoft Windows Firewall Connecting to a Mobile Broadband Network Setting Up and Using Networks Card Types Using Cards Card Blanks Installing a PC Card or ExpressCardExtended Cards Using Cards Removing a Card or Blank About Passwords PasswordsSecuring Your Computer Security Cable Lock Type of Password Features Using a Primary or System Password Using an Administrator Password Trusted Platform Module TPM Using a Hard Drive Password Security Management Software Enabling the TPM Feature Computer Tracking Software Using the Security Management SoftwareActivating the Security Management Software If Your Computer Is Lost or Stolen 100 Computer, Keyboard, and Display Cleaning Your Computer CDs and DVDs Floppy Drive102 Dell Technical Update Service TroubleshootingDell Diagnostics When to Use the Dell Diagnostics 104 105 Dell Diagnostics Main MenuOption Function Option 106Tab Function Dell Support Utility Accessing the Dell Support UtilityClicking the Dell Support Icon 107 Drive Problems Solving ProblemsDouble-Clicking the Dell Support Icon 108 Problems writing to an optical drive Optical drive problemsHard drive problems 109 110 Mail, Modem, and Internet Problems 111 Error Messages 112 Ieee 1394 Device Problems Lockups and Software Problems Program is designed for an earlier Windows operating system Other software problemsSolid blue screen appears 114 Network Problems Memory Problems115 116 Power Problems 117 Printer Problems Sound and Speaker Problems Scanner ProblemsNo sound from speakers 118 No sound from headphones Touch Pad or Mouse Problems119 If the display is blank Video and Display ProblemsDisplay is blank 120 If only part of the display is readable If the display is difficult to read121 122 Overview System Setup Program123 Windows Vista, click Start → Help and Support System Setup Screens Viewing the System Setup ScreensChanging the Boot Sequence Commonly Used Options 125 Performing a One-Time Boot Enabling the Infrared Sensor Changing COM Ports126 What Is a Driver? Reinstalling SoftwareDrivers Identifying Drivers Using Windows Device Driver Rollback Reinstalling Drivers and UtilitiesMicrosoft Windows Vista 128 129 Using the Drivers and Utilities Media 130 Manually Reinstalling Drivers 131 Restoring Your Operating System Starting System Restore Using Microsoft Windows System Restore132 Enabling System Restore Undoing the Last System Restore133 Windows XP Dell PC Restore Using Dell PC Restore and Dell Factory Image Restore134 135 136 Windows Vista Dell Factory Image Restore Reinstalling Windows XP or Windows Vista Using the Operating System MediaBefore you Begin 137 138 139 Dell QuickSet 140 Identifying Your Computer Traveling With Your ComputerPacking the Computer 141 Traveling by Air Travel Tips142 Obtaining Assistance Getting Help143 DellConnect Online Services Technical Support and Customer Service144 AutoTech Service Problems With Your OrderAutomated Order-Status Service 145 146 Before You Call 147 148 Diagnostics Checklist 149 Contacting Dell 150 151 SpecificationsProcessor System Information 152 Ports and ConnectorsMemory Communications 153Video Audio Display 154 155 BatteryKeyboard Touch Pad AC Adapter 156 Physical 157Environmental 158 FCC Notice U.S. Only AppendixFCC Class B 159 160 Macrovision Product Notice 161 Glossary 162 Product ID 163 164 165 166 167 168 Module bay See media bay 169 NIC See network adapter 170 171 172 173 174 175 Video resolution See resolution 176