Lenovo TC A51-8428 manual General safety guidelines, Service, Power cords and power adapters

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vDamage to a battery (such as cracks, dents, creases), discharge from a battery, or a buildup of foreign substances on the battery.

vA cracking, hissing or popping sound, or strong odor that comes from the product.

vSigns that liquid has been spilled or an object has fallen onto the computer product, the power cord or power adapter.

vThe computer product, the power cord or power adapter has been exposed to water.

vThe product has been dropped or damaged in any way.

vThe product does not operate normally when you follow the operating instructions.

Note: If you notice these conditions with a non-IBM product (such as an extension cord), stop using that product until you can contact the product manufacturer for further instructions, or until you get a suitable replacement.

General safety guidelines

Always observe the following precautions to reduce the risk of injury and property damage.

Service

Do not attempt to service a product yourself unless instructed to do so by the IBM Support Center. Use only an IBM authorized service provider who is approved to repair your particular product.

Note: Some parts can be upgraded or replaced by the customer. These parts are referred to as Customer Replaceable Units, or CRUs. IBM expressly identifies CRUs as such, and provides documentation with instructions when it is appropriate for customers to replace those parts. You must closely follow all instructions when performing such replacements. Always make sure that the power is turned off and that the product is unplugged from any power source before you attempt the replacement. If you have any questions or concerns, contact the IBM Support Center.

Power cords and power adapters

Use only the power cords and power adapters supplied by the product manufacturer.

Never wrap a power cord around the power adapter or other object. Doing so can stress the cord in ways that can cause the cord to fray, crack or crimp. This can present a safety hazard.

Always route power cords so that they will not be walked on, tripped over, or pinched by objects.

Protect the cord and power adapters from liquids. For instance, do not leave your cord or power adapter near sinks, tubs, toilets, or on floors that are cleaned with liquid cleansers. Liquids can cause a short circuit, particularly if the cord or power adapter has been stressed by misuse. Liquids can also cause gradual corrosion of the power cord terminals and/or the connector terminals on the adapter which can eventually result in overheating.

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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 actionPower cords and power adapters General safety guidelinesService Batteries Extension cords and related devicesPlugs and outlets Heat and product ventilation CD and DVD drive safetyAdditional safety information To connect To disconnect Connexion Déconnexion Lithium battery noticeModem safety information Laser compliance statement Consignes de sécurité relatives au modemXii User Guide Overview Information resourcesFeatures Input/output features PowerSecurity features ExpansionIBM preinstalled software Operating systems preinstalled varies by model Available optionsSpecifications Supported operating positions User Guide Handling static-sensitive devices Installing optionsInstalling external options 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 Password protection To install a rope clipRope clip Cover lockErasing a lost or forgotten password clearing Cmos Closing the cover and connecting the cablesUsing the IBM Setup Utility Starting the IBM Setup Utility programViewing and changing settings Exiting from the IBM Setup Utility programPassword considerations User PasswordAdministrator Password IDE Drive User PasswordIDE Drive Master Password Setting, changing, and deleting a passwordUsing Security Profile by Device Select Security Profile by DeviceAdvanced settings Selecting a startup deviceSelecting a temporary startup device Changing the startup device sequenceUpdating flashing Bios from your operating system Appendix A. Updating POST/BIOSUpdating flashing Bios from a diskette Recovering from a POST/BIOS update failure Cleaning a mouse with a ball Appendix B. Cleaning the mouseCleaning an optical mouse User Guide Appendix C. Manual modem commands Basic AT commandsLow speaker volume Set Pulse dial as defaultSet Tone 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
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