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Dell NY105 If only part of the display is readable

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96 Troubleshooting

MOVE THE EXTERNAL SUBWOOFER AWAY FROM THE COMPUTER OR MONITOR —If your external speaker

system includes a subwoofer, ensure that the subwoofer is at least 60cm (2 ft) away from the computer

or external monitor.

ELIMINATE POSSIBLE INTERFERENCE —Turn off nearby fans, fluorescent lights, halogen lamps, or other

appliances.

ROTATE THE COMPUTER TO FACE A DIFFERENT DIRECTION —Eliminate sunlight glare, which can cause poor

picture quality.

ADJUST THE WINDOWS DISPLAY SETTINGS —

1

Click the

Start

button and then click

Control Panel

.

2

Click

Appearance and Themes

.

3

Click the area you want to change or click the

Display

icon.

4

Try different settings for

Color quality

and

Screen resolution

.

RUN THE VIDEO DIAGNOSTICS TESTS —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. If the

problem persists, contact Dell (see "Obtaining Assistance" on page143).

SEE "ERROR MESSAGES"—If an error message appears, see "Error Messages" on page 82

If only part of the display is readable

CONNECT AN EXTERNAL MONITOR —

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 "Obtaining Assistance" on page143).

Contents

Main Notes, Notices, and Cautions Contents 1 Finding Information 2 About Your Computer 3 Transferring Information to a New Computer 4 Using a Battery 5 Using the Keyboard 6 Using the Display 7 Setting Up and Using Networks 8 Using Multimedia 9Using Cards 10 Securing Your Computer 11 Troubleshooting Page 12 System Setup Program 13 Reinstalling Software 14 Adding and Replacing Parts 15 Dell QuickSet 16 Traveling With Your Computer 17 Specifications 18 Getting Help 19 Appendix Finding Information NOTE: 12 NOTE: 14 , Dell QuickSet Help To vi ew NOTE: About Your Computer Front View Page NOTE: 18 Left Side View Page Right Side View Back View 22 Page Page Bottom View Page Transferring Information to a New Computer Microsoft Windows XP Running the Files and Settings Transfer Wizard With the Operating System Media Running the Files and Settings Transfer Wizard Without the Operating System Media Microsoft Windows Vista Easy Transfer Cable for Windows Vista Page Using a Battery Battery Performance Checking the Battery Charge Dell QuickSet Battery Meter Microsoft Windows Power Meter Charge Gauge Low-Battery Warning Conserving Battery Power Power Management Modes Standby and Sleep Mode Hibernate Mode Configuring Power Management Settings Accessing Power Options Properties Charging the Battery Replacing the Battery Storing a Battery Page Page Using the Keyboard 40 Battery Display Functions Power Management Microsoft Windows Logo Key Functions Touch Pad Customizing the Touch Pad and Track Stick Changing the Track Stick Cap Using the Display Adjusting Brightness Using the Ambient Light Sensor Switching the Video Image Setting Display Resolution and Refresh Rate Dual Independent Display Mode Swapping Primary and Secondary Displays Setting Up and Using Networks Connecting a Network or Broadband Modem Cable Setting Up a Network in the Microsoft Windows XP Operating System Setting Up a Network in the Microsoft Windows Vista Operating System Wireless Local Area Network What You Need to Establish a WLAN Connection Checking Your Wireless Network Card Setting Up a New WLAN Using a Wireless Router and a Broadband Modem Connecting to a WLAN Page Mobile Broadband (or Wireless Wide Area Network) What You Need to Establish a Mobile Broadband Network Connection Checking Your Dell Mobile Broadband Card Connecting to a Mobile Broadband Network Enabling/Disabling the Dell Mobile Broadband Card Managing Your Network Settings Through the Dell QuickSet Location Profiler Dell Wi-Fi Catcher Network Locator Microsoft Windows Firewall Page Page Using Multimedia Playing Media Copying Media How to Copy Media Using Blank Media Helpful Tips Adjusting the Volume Adjusting the Picture Microsoft Windows XP Operating System Microsoft Windows Vista Operating System Using Cards Card Types PC Cards ExpressCards Smart Cards Installing a PC Card or ExpressCard PC Card ExpressCards Removing a Card or Blank Page Securing Your Computer Security Cable Lock Smart Card About Smart Cards Installing a Smart Card Passwords About Passwords Using a Primary (or System) Password Using an Administrator Password Using a Hard Drive Password Trusted Platform Module (TPM) Enabling the TPM Feature Security Management Software Activating the Security Management Software Using the Security Management Software Computer Tracking Software If Your Computer Is Lost or Stolen Page Troubleshooting Dell Technical Update Service Dell Diagnostics When to Use the Dell Diagnostics Starting the Dell Diagnostics From Your Hard Drive Starting the Dell Diagnostics from the Drivers and Utilities Media Dell Diagnostics Main Menu Dell Support Utility Accessing the Dell Support Utility Clicking the Dell Support Icon Double-Clicking the Dell Support Icon Drive Problems Media drive problems If you cannot eject the CD, CD-RW, DVD, or DVD+RW drive tray If you hear an unfamiliar scraping or grinding sound Hard drive problems E-Mail, Modem, and Internet Problems Page Error Messages Page Page IEEE 1394 Device Problems Keyboard Problems External Keyboard problems Unexpected characters Lockups and Software Problems The computer does not start up The computer stops responding A program stops responding or crashes repeatedly A program is designed for an earlier Microsoft Windows operating system Memory Problems Network Problems General Wireless Local Area Network (WLAN) Mobile Broadband (Wireless Wide Area Network) PC Card Problems Power Problems Ensuring Sufficient Power for Your Computer Docking Power Considerations Printer Problems Scanner Problems Sound and Speaker Problems No sound from integrated speakers No sound from external speakers No sound from headphones Touch Pad or Mouse Problems Video and Display Problems If the display is blank If the display is difficult to read If only part of the display is readable System Setup Program Overview Viewing the System Setup Screens System Setup Screens Commonly Used Options Changing the Boot Sequence Changing Printer Modes Changing COM Ports Page Reinstalling Software Drivers What Is a Driver? Identifying Drivers Reinstalling Drivers and Utilities Page Using the Hardware Troubleshooter Tool Microsoft Windows XP Microsoft Windows Vista Restoring Your Operating System Using Microsoft Windows System Restore Using the Operating System Media Page Page Adding and Replacing Parts Before You Begin Recommended Tools Turning Off Your Computer Before Working Inside Your Computer Hinge Cover Keyboard Page Internal Card With Bluetooth Wireless Technology Coin-Cell Battery Memory Page Page Page Page Wireless Local Area Network (WLAN) Card Page Mobile Broadband Card Page Page Subscriber Identity Module (SIM) Card Hard Drive Page Media Bay Removing Media Bay Devices FCM (Flash Cache Module) Page Page Dell QuickSet Page Traveling With Your Computer Identifying Your Computer Packing the Computer Travel Tips Traveling by Air Specifications Page Page Page Page Page Page Page Getting Help Obtaining Assistance Technical Support and Customer Service DellConnect Online Services AutoTech Service Automated Order-Status Service Problems With Your Order Product Information Returning Items for Warranty Repair or Credit Before You Call Contacting Dell For customers in the United States, call 800-WWW-DELL (800-999-3355). Page Appendix Cleaning Your Computer Computer, Keyboard, and Display Touch Pad Mouse Floppy Drive CDs and DVDs FCC Notice (U.S. Only) FCC Class B Page Glossary A B C D E F G H I K L M N O P R S Page T U V W X Z