Dell G7279, MTC2, DMC manual If the screen is difficult to read

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SWAP THE POWER CABLES — Swap the computer and monitor power cables to determine if the power cable is defective.

TEST THE VIDEO EXTENSION CABLE (IF USED) — If you are using a video extension cable and removing the cable solves the problem, the cable is defective.

TEST ANOTHER MONITOR — If another monitor is available, connect it to the computer.

CHECK THE DIAGNOSTIC LIGHTS — See page 44.

If the screen is difficult to read

CHECK THE MONITOR SETTINGS — See the monitor documentation for instructions on adjusting the contrast and brightness, demagnetizing (degaussing) the monitor, and running the monitor self-test.

MOVE THE SUBWOOFER AWAY FROM THE MONITOR — If your speaker system includes a subwoofer, ensure that the subwoofer is at least 60 cm (2 ft) away from the monitor.

MOVE THE MONITOR AWAY FROM EXTERNAL POWER SOURCES — Fans, fluorescent lights, halogen lamps, and other electrical devices can cause the screen image to appear "shaky." Turn off nearby devices to check for interference.

ROTATE THE MONITOR 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 click Control Panel.

2 Click Appearance and Themes.

3 Click Display and click the Settings tab.

4 Try different settings for Screen resolution and Color quality.

RESTORE THE RECOMMENDED SETTINGS — Restore the original resolution and refresh rate settings. See the Tell Me How help file for instructions. To access help files, see page 21.

Solving Problems

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Contents W . d e l l . c o m s u p p o r t . d e l l . c o m Abbreviations and Acronyms Contents Program is designed for an earlier Microsoft Windows Mail, Modem, and Internet ProblemsUsing Microsoft Windows XP System Restore Advanced TroubleshootingResolving Software and Hardware Incompatibilities Adding or Replacing a Second Hard DriveAppendix Safety Instructions Safety InstructionsW . d e l l . c o m s u p p o r t . d e l l . c o m Microsoft Windows License Label Finding Information for Your ComputerSupport questions Downloads Drivers, patches, and software updatesOnline courses Technical supportConnecting a Parallel Printer Setting Up a PrinterSetting Up and Using Your Computer Printer CableParallel connector on computer Connecting a USB PrinterScrews Clips Parallel printer Cable Notches Connecting to a Network Adapter Setting Up a Home and Office NetworkUSB connector on computer Network Setup Wizard Connecting to the InternetClick Checklist for creating a network Network wall jack Network cableClick Connect to the Internet Setting Up Your Internet ConnectionIf you have a CD, click Use the CD I got from an ISP Using Blank CD-Rs and CD-RWs How to Copy a CD or DVDCopying CDs and DVDs Click Exact CopyHelpful Tips Hyper-ThreadingClick Hardware and click Device Manager Turning Off Your Computer Booting to a USB DeviceTurn Off Computer Turn off computer window, click Turn off Solving Problems Finding SolutionsW . d e l l . c o m s u p p o r t . d e l l . c o m See Drive Problems Battery ProblemsFloppy drive problems Finding Help InformationBack of floppy disk Write-protected Not write- protected CD drive problemsDVD drive problems Problems writing to a CD-RW driveHard drive problems Mail, Modem, and Internet ProblemsError Messages Computer stops responding General ProblemsProgram stops responding Other software problemsProgram crashes repeatedly Solid blue screen appearsGeneral hardware problems Other technical problemsIeee 1394 Device Problems Mouse Problems Keyboard ProblemsNetwork Problems Network integrity Power ProblemsSpeed light Printer Problems Scanner Problems No sound from speakers Sound and Speaker ProblemsNo sound from headphones Video and Monitor ProblemsIf the screen is blank If the screen is difficult to read Solving Problems Light Pattern Problem Description Suggested Resolution Diagnostic LightsAdvanced Troubleshooting Error Identified a faulty module orIf available, install properly If the problem persists, contactDifferent connector and restart If the problem persists orYou have identified a faulty Connector or reinstalled allThat you are installing are Connector placementMemory module/memory Requirements seeStarting the Dell Diagnostics Dell DiagnosticsOption Function Dell Diagnostics Main MenuTab Function Reinstalling Drivers What Is a Driver?Drivers Identifying DriversManually Reinstalling Drivers Using Windows XP Device Driver RollbackRestoring Your Operating System Click Roll Back DriverCreating a Restore Point Using Microsoft Windows XP System RestoreClick System Restore Restoring the Computer to an Earlier Operating StateUsing Dell PC Restore by Symantec Click Performance and Maintenance Enabling System RestoreClick the System Restore tab Click Performance and Maintenance and click SystemAdvanced Troubleshooting Front View Front and Back View of the ComputerOn computers with an optional floppy drive Adding Parts Computer. Instead, perform an operating system shutdown Back View Network jack Guide Removing the Computer CoverComputer cover Cover latch Back of computer Looking Inside Your Computer System Board Securing screw Filler bracket Adding CardsCrossbar Card Card cutoutNot fully seated card Fully seated card Bracket Adding or Replacing the AGP Card Notch Lever Tab Card clip AGP connector Installing an AGP CardPCI connector AGP card Card clip lever Slot connectorAdding or Replacing a Second Hard Drive Screws Existing hard driveDrive bracket Drive bracket Adding a Floppy Drive Middle tab Side hinges Front panel Top tabBottom tab Tabs Insert Top bracket screw Drive bracket Floppy drive Side hinges Front panel Adding a Second CD or DVD Drive Bottom tab Adding Parts Drive Alignment screws Insert TabsDrive Securing screw Side hinges Front panel Adding Memory Memory Installation GuidelinesDDR Memory Overview Installing Memory Notch Securing clips ConnectorReplacing the Computer Cover System Information SpecificationsExpansion Bus AppendixMemory Ports and ConnectorsOther factors DrivesVideo PowerAudio NetworkOverview System SetupEnvironmental System Setup Screens Viewing SettingsKeys Action Option Settings Boot SequenceChanging Boot Sequence for the Current Boot Changing Boot Sequence for Future Boots Clearing Forgotten PasswordsReplacing the Battery Battery Battery socket Dell Technical Support Policy U.S. Only Definition of Dell-Installed Software and PeripheralsFCC Notices U.S. Only Definition of Third-Party Software and PeripheralsClass a Class B FCC Identification Information Contacting DellAppendix Appendix Appendix Appendix Appendix Appendix Appendix Area Codes Local Numbers, Toll-Free Numbers Appendix 100 101 102 103 104 105 106 Index 107 IndexCompatibility, 27 restore to previous operating Index Help files accessing, 9108 Index Wizards Program Compatibility Wizard Wizard, 27 reinstalling, 47 scanner, 34 System RestoreIndex 109 Index 110