HP 402 G1 manual Solving keyboard and mouse problems, 8Solving Keyboard Problems

Page 82

Printer will not print.

Cause	Solution

The printer may be out of paper.	Check the paper tray and refill it if it is empty.

Solving keyboard and mouse problems

If you encounter keyboard or mouse problems, see the documentation that came with the equipment and to the common causes and solutions listed in the following table.

Table 7-8Solving Keyboard Problems

A wireless keyboard/mouse is not working correctly. Symptoms include lagging mouse movement, jumpy mouse/keyboard, or no function of mouse/keyboard and external drive.

Cause

Solution

If your computer is equipped with USB 3.0 ports, connected USB 3.0 devices can interfere with the wireless keyboard USB receiver.

Connect the wireless keyboard USB receiver to a USB 2.0 port that is separated from ports with USB 3.0 devices. If you still experience interference, you may have to place the connectors farther apart using an external USB hub.

Keyboard commands and typing are not recognized by the computer.

Cause	Solution

Keyboard connector is not properly connected.	Shut down the computer, reconnect the keyboard to the back of
	the computer, and then restart the computer.

Program in use has stopped responding to commands.	Shut down your computer using the mouse and then restart the
	computer.

Keyboard needs repairs.	See the Worldwide Limited Warranty for terms and conditions.

Computer is in Sleep state.	Press the power button to resume from Sleep state.
	CAUTION: When attempting to resume from Sleep date, do not
	hold down the power button for more than four seconds.
	Otherwise, the computer will shut down and you will lose any
	unsaved data.

Cursor will not move using the arrow keys on the keypad.

Cause	Solution

The Num Lock key is on.	Press the Num Lock key. The Num Lock light should be off if you
	want to use the arrow keys on the keypad. You can disable or
	enable the Num Lock key in Computer Setup at Advanced >
	Device Options.

74 Chapter 7 Troubleshooting without diagnostics

Image 82

Contents Maintenance & Service Guide Product notice Safety warning notice IiiIv Safety warning notice Table of contents Troubleshooting without diagnostics System board callouts104 100103 Vii110 106107 ViiiDrive configuration may vary by model Product featuresStandard configuration features Standard configuration featuresRear panel components Product featuresSerial number location Activating and customizing the software in Windows Downloading Windows 8 updatesActivating and customizing the software Activating the Windows operating systemMajor components Illustrated parts catalogIllustrated parts catalog Miscellaneous parts Item Component Access panelFront bezel Fan sink Power supply, 250 W Processors Miscellaneous partsTB, 7200 rpm, 3.5 inch 500-GB, 7200 rpm, 3.5 inch Mass storage devicesHard drives Optical driveSata hard drive cables Serial ATA Hard Drive CharacteristicsSata hard drives Sata data cableGenerating static Smart ATA drivesElectrostatic discharge information Preventing electrostatic damage to equipmentStatic Shielding Protection Levels Personal grounding methods and equipmentGrounding the work area Method VoltageOperating guidelines Recommended materials and equipmentCleaning the keyboard General cleaning safety precautionsCleaning the computer case Routine careCleaning the mouse Service considerationsCleaning the display Tools and software requirementsLithium coin cell battery Cables and connectorsHard drives Removal and replacement procedures Preparing to disassemble the computerAccess panel Removing a slim optical disc drive Installing and removing drivesDescription Page Page Installing a slim optical disc drive Page Remove the access panel see Access panel on Removing and replacing a 3.5-inch hard drivePage Page Page Front bezel To remove the front bezelPage Memory Remove the access panel see Access panel on MemoryGB memory module PC3-12800 4GB memory module PC3-12800 Page Expansion cards Page Fan Page RTC battery RTC batteryFan sink Page Processor Before removing the processor, follow these stepsPage Power supply Page System board To remove the system boardUpdating Smbios Information System boardSystem ID Setup Setup Field Name Comment LabelSystem board callouts Sys Bd Label ComponentNetwork connector and USB Front I/O USB connectorRTC battery VGA connectorComputer Setup F10 Utility Computer Setup F10 UtilitiesComputer Setup F10 Utility Using Computer Setup F10 Utilities1Computer Setup F10 Utility Computer Setup-File 2Computer Setup-FileComputer Setup-Storage 3Computer Setup-StorageComputer Setup-Security 4Computer Setup-SecurityDevice Security Network BootMaster Boot Record USB SecuritySystem Security System Security theseDriveLock Security Configuration Secure BootLegacy Support to disabled Computer Setup-Power 5Computer Setup-PowerComputer Setup-Advanced 6Computer Setup-Advanced for advanced usersBus Options PCI SERR# Generation. Default is enabledVGA Configuration AMT Configuration Device OptionsRecovering the configuration settings Troubleshooting without diagnostics Safety and comfort Before you call for technical supportHelpful hints 1Solving General Problems Solving general problemsSolving general problems Computer date and time display is incorrect Cause SolutionCannot remove computer cover or access panel Cause Solution Cause SolutionThere is no sound or sound volume is too low Cause Solution Poor performance Cause SolutionUnder Windows System, click Run Solution 2Solving Power Problems Solving power problemsSolving power problems Power supply shuts down intermittently Cause SolutionSolving hard drive problems 3Solving Hard Drive ProblemsSolving hard drive problems Can not write to the media card Cause Solving media card reader problems4Solving Media Card Reader Problems Computer’s software is used to safely eject the card5Solving Display Problems Solving display problemsSolving display problems Blank screen no video Cause SolutionScreen resolution Dim characters Cause Solution Image is not centered Cause SolutionOut of Range displays on screen Cause No Connection, Check Signal Cable displays on screen CauseSelect the monitor’s Auto-Adjustment option Monitor’s on-screen display menuSolving audio problems Solving audio problems6Solving Audio Problems Select Device Manager Sound from headphones is not clear or muffled CauseThere is no sound or sound volume is too low Cause Line-in jack is not functioning properly CauseSolving printer problems Solving printer problems7Solving Printer Problems Solving keyboard and mouse problems 8Solving Keyboard ProblemsShut down the computer using the keyboard Solving hardware installation problems9Solving Mouse Problems Components10Solving Hardware Installation Problems Computer will not start Cause Solution11Solving Network Problems Solving network problemsSolving network problems Power SavingsNetwork status link light never flashes Cause Solution Wake-on-LAN feature is not functioning Cause SolutionAdvanced Device Options S5 Wake on LAN Settings for the board Correct operating modeDiagnostics reports a failure Cause Solution Cable CorrectlyNew network card will not boot Cause Solution Solving memory problems Solving memory problems12Solving Memory Problems Some fans only operate when needed Solving processor problems13Solving Processor Problems Make sure the processor heat sink is installed properly14Solving CD-ROM and DVD Problems Solving CD-ROM and DVD problemsSolving CD-ROM and DVD problems Computer Setup utilityMovie will not play in the DVD drive Cause Solution Cannot eject compact disc tray-load unit CauseSolving USB flash drive problems Solving USB flash drive problemsSolving front panel component problems 15Solving USB Flash Drive ProblemsUnable to connect to the Internet Cause Solution Solving internet access problemsSet to Enabled in Security USB Security Click Internet OptionsSolving software problems Solving software problemsContacting customer support Why run HP PC Hardware Diagnostics Uefi HP PC Hardware DiagnosticsHow to access and run HP PC Hardware Diagnostics Uefi Diagnostic section, click HP Uefi Support Environment Backup and recovery in Windows Backup and RecoveryBacking up your information To recover information you previously backed up Performing a system recoveryFollow the on-screen instructions Backup and Recovery Using f11 recovery tools Post Numeric Codes and Text Messages Post Error MessagesPost Error Messages 1Numeric Codes and Text MessagesPost Numeric Codes and Text Messages Reconfigure card resources and/or run Flash Screen Image Corrupted Flash Screen image has errorsReseat power supply fan Computer Setup or Windows utilitiesEmulation to IDE, and select File Save Inventory error during MEBx execution Try a different USB key device forGeneral error during MEBx execution Functionality contained in the system BiosSystem Bios version System Bios and ME firmwarePossible Cause Recommended Action White Power LED On Interpreting Post diagnostic front panel LEDs2Diagnostic front panel LEDs and audible codes ActivityInterpreting Post diagnostic front panel LEDs Possible Cause Recommended ActionInstall a TXT capable processor Red Power LED flashes sevenRecovery Mode section of the Desktop Previously enabled on thisEstablishing a Setup or Power-on password Password Security and Resetting CmosEstablishing a Setup or Power-on password Clearing and resetting the Cmos Resetting the Setup and Power-on passwordPassword Security and Resetting Cmos Page Japanese Power Cord Requirements Power Cord Set RequirementsGeneral requirements Country-specific requirements Country-specific requirementsCountry Accrediting Agency Statement of Volatility Appendix B Statement of VolatilityEnter the F10 setup utility Specifications SpecificationsAppendix C Specifications Index Network Setup password 103 Power Software Printer Problems All-in One chassis Fan Password Fan sink103 Problems Product ID location Removal and replacement

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