Lenovo 8973, 6490, 9635, 9637, 9277 1 Retainer ring 2 Ball 3 Plastic rollers 4 Ball cage

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Note: The following illustration might be slightly different from your mouse.

1 Retainer ring 2 Ball

3 Plastic rollers 4 Ball cage

To clean a mouse with a ball, follow the instructions below:

1.Turn off your computer.

2.Disconnect the mouse cable from the computer.

3.Turn the mouse upside down. Twist the retainer ring 1 to the unlocked position to remove the ball.

4.Place your hand over the retainer ring and ball 2, and then turn the mouse right-side up, so that the retainer ring and ball fall out into your hand.

5.Wash the ball in warm, soapy water then dry it with a clean cloth.

6.Blow air carefully into the ball cage 4 to dislodge dust and lint.

7.Look for a build up of dirt on the plastic rollers 3 inside the ball cage. This build up usually appears as a stripe running across the middle of the rollers.

8.If the rollers are dirty, clean them by using a cotton swab soaked in isopropyl (rubbing) alcohol. Turn the rollers with your finger and continue swabbing them until all the dirt is removed. Be sure the rollers are still centered in their channels after you clean them.

9.Remove any fibers from the swab that might be remaining on the rollers.

10.Replace the ball and the retainer ring. Twist the retainer ring to the locked position.

11.Reconnect the mouse cable to the computer.

12.Turn your computer back on.

58User Guide

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Contents User Guide Page User Guide Page Contents Troubleshooting Important safety information Conditions that require immediate actionGeneral safety guidelines Service and upgradesPower cords and power adapters Static electricity preventionVoltage-selection switch External devices Extension cords and related devicesPlugs and outlets BatteriesHeat and product ventilation Electrical current safety information Operating environmentLithium battery notice Modem safety informationTo connect To disconnect Power supply statement Products with television tuner options installedLaser compliance statement Example of antenna grounding Proper grounding for the cableData safety Cleaning and maintenanceUsing headphones or earphones Additional safety information Introduction Xviii User Guide Arranging your workspace ComfortGlare and lighting Air circulationElectrical outlets and cable lengths Setting up your computer Connecting your computerUser Guide Setting up your computer User Guide 1394 Turning on power Finishing the software installationUpdating your operating system Installing other operating systemsCompleting important tasks Updating your antivirus softwareUser Guide Installing options FeaturesVideo subsystem Operating systems preinstalled varies by model type Weight SpecificationsDimensions EnvironmentAvailable options Tools requiredInstalling external options Handling static-sensitive devicesLocating the connectors on the front of your computer Locating the connectors on the rear of your computer Connector Description Obtaining device driversRemoving the cover Locating components Identifying parts on the system board Installing options User Guide Installing memory What to do nextInstalling adapters What to do next Installing internal drives Drive specificationsInstalling options Installing a drive in bay 1 or bay Installing options Connecting drives Connecting the first optical driveConnecting a serial ATA hard disk drive Installing security featuresIntegrated cable lock Password protection Changing the batteryPadlock Erasing a lost or forgotten password clearing Cmos Replacing the cover and connecting the cables User Guide Recovering software Creating and using the Product Recovery discPerforming backup and recovery operations Using the Rescue and Recovery workspace Creating and using rescue media Creating and using a Recovery Repair diskette To create rescue media, do the followingRecovering or installing device drivers Setting a rescue device in the startup sequence Solving recovery problemsUser Guide Viewing and changing settings Using the Setup UtilityStarting the Setup Utility program Using passwordsSetting, changing, and deleting a password User PasswordAdministrator Password Using Security Profile by DeviceSelecting a startup device Selecting a temporary startup deviceChanging the startup device sequence Advanced settings Exiting from the Setup Utility programUsing system programs Updating flashing Bios from a disketteUpdating system programs User Guide Troubleshooting and diagnostics Basic troubleshootingSymptom Action Diagnostic programs PC-Doctor for Windows PC-Doctor for DOSRunning diagnostics from the CD or diskettes Optical mouse Cleaning the mousePC-Doctor for Windows PE Non-optical mouse1 Retainer ring 2 Ball 3 Plastic rollers 4 Ball cage Online Books folder Getting information, help, and serviceInformation resources ThinkVantage Productivity CenterAccess Help Safety and warrantyHelp and service Using the documentation and diagnostic programs Calling for serviceUsing other services Purchasing additional servicesAppendix A. Manual modem commands Basic AT commandsSet Tone Dial as default Low speaker volumeSet Pulse dial as default Internal speaker on until carrier detectedExtended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 1 commands Fax Class 2 commandsVoice commands Appendix A. Manual modem commands User Guide Appendix B. Notices Television output notice TrademarksIndex Page Page Part Number