Lenovo TC S51-8173, TC A51-8425, TC A51-8424, TC A51-8428, TC S51-8171, TC S51-8172 manual User Guide

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To clean a mouse with a ball:

1.Turn off your computer.

2.Turn the mouse over, with the top side down, and look carefully at the bottom. Twist the retainer ring1to the unlocked position to remove the ball.

3.Place your hand over the retainer ring and ball2, and then turn the mouse over, top side up, so that the retainer ring and ball fall out into your hand.

4.Wash the ball in warm, soapy water then dry it with a clean cloth. Blow air carefully into the ball cage4to dislodge dust and lint.

5.Look for a build up of dirt on the plastic rollers3inside the ball cage. This build up usually appears as a stripe running across the middle of the rollers.

6.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.

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

8.Replace the ball and the retainer ring.

9.Turn your computer back on.

32User Guide

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Contents User Guide Types 8424, 8425 Types 8171, 8172 Page User Guide Types 8424, 8425 Types 8171, 8172 Page Contents Iv User Guide Important safety information Conditions that require immediate actionService General safety guidelinesPower cords and power adapters Plugs and outlets Extension cords and related devicesBatteries Additional safety information CD and DVD drive safetyHeat and product ventilation To connect To disconnect Modem safety information Lithium battery noticeConnexion Déconnexion Laser compliance statement Consignes de sécurité relatives au modemXii User Guide Overview Information resourcesFeatures Security features Input/output featuresPower ExpansionIBM preinstalled software Operating systems preinstalled varies by model Available optionsSpecifications Supported operating positions User Guide Installing external options Installing optionsHandling static-sensitive devices Cover keylock some models Locating connectors on the rear of your computer Obtaining device driversOpening the cover Locating components Accessing system board components and drives Identifying parts on the system board Installing memory Installing PCI adapters Removing and replacing the battery What to do nextRemoving and replacing an optical drive Installing security features Removing and replacing a diskette driveIdentifying security locks Integrated security cableUser Guide Rope clip Password protectionTo install a rope clip Cover lockErasing a lost or forgotten password clearing Cmos Closing the cover and connecting the cablesViewing and changing settings Using the IBM Setup UtilityStarting the IBM Setup Utility program Exiting from the IBM Setup Utility programAdministrator Password Password considerationsUser Password IDE Drive User PasswordUsing Security Profile by Device IDE Drive Master PasswordSetting, changing, and deleting a password Select Security Profile by DeviceSelecting a temporary startup device Advanced settingsSelecting a startup device Changing the startup device sequenceUpdating flashing Bios from a diskette Appendix A. Updating POST/BIOSUpdating flashing Bios from your operating system Recovering from a POST/BIOS update failure Cleaning an optical mouse Appendix B. Cleaning the mouseCleaning a mouse with a ball User Guide Appendix C. 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 C. Manual modem commands User Guide Appendix D. Notices Trademarks IBMIndex Special characters Page Page Part Number 19R0474