Lenovo 3000 J Series manual Power supply statement, Data safety, Cleaning and maintenance

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Power supply statement

Never remove the cover on a power supply or any part that has the following label attached.

Hazardous voltage, current, and energy levels are present inside any component that has this label attached. There are no serviceable parts inside these components. If you suspect a problem with one of these parts, contact a service technician.

Data safety

Do not delete unknown files or change the name of files or directories that were not created by you; otherwise, your computer software might fail to work.

Be aware that accessing network resources can leave your computer vulnerable to computer viruses, hackers, spyware, and other malicious activities that might damage your computer, software, or data. It is your responsibility to ensure that you have adequate protection in the form of firewalls, antivirus software, and anti-spyware software and keep this software up to date.

Cleaning and maintenance

Keep your computer and workspace clean. Shut down the computer and then disconnect the power cord before cleaning the computer. Do not spray any liquid detergent directly on the computer or use any detergent containing flammable material to clean the computer. Spray the detergent on a soft cloth and then wipe the computer surfaces.

Additional safety information

Plastic bags can be dangerous. Keep plastic bags away from babies and children to avoid danger of suffocation.

xivUser Guide

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Contents User Guide Lenovo 3000 J Series Page Lenovo 3000 J Series Page Contents Getting information, help Important safety information Conditions that require immediate actionGeneral safety guidelines Service and upgradesPower cords and power adapters Static electricity preventionViii User Guide Extension cords and related devices Voltage-selection switchPlugs and outlets Batteries External devicesHeat and product ventilation Operating environment Lithium battery notice Electrical current safety informationTo connect To disconnect Modem safety information Laser compliance statementPower supply statement Data safetyCleaning and maintenance Additional safety informationIntroduction Xvi User Guide Comfort Arranging your workspaceGlare and lighting Air circulation Electrical outlets and cable lengthsSetting up your computer Connecting your computerUser Guide Setting up your computer User Guide 1394 User Guide Finishing the software installation Turning on powerCompleting important tasks Installing other operating systems Updating your operating systemUpdating your antivirus software Shutting down the computerInstalling options FeaturesMemory Input/output features Available options Tools required SpecificationsHandling static-sensitive devices Installing external options Locating the connectors on the front of your computer Locating the connectors on the rear of your computer Connector Description Obtaining device drivers Removing the cover Locating components Identifying parts on the system boardUser Guide Installing options Installing memory What to do nextInstalling adapters Secure the adapter with the screw as shown Installing internal drives Drive specificationsUser Guide Installing a drive User Guide Installing options Connecting the first CD drive or DVD drive Installing security features Connecting a serial ATA hard disk driveChanging the battery Password protectionPadlock loop Installing options 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 Using the Setup Utility Starting the Setup Utility programViewing and changing settings Using passwordsPassword considerations User PasswordAdministrator Password Setting, changing, and deleting a passwordSelecting a startup device Using Security Profile by DeviceSelecting a temporary startup device Exiting from the Setup Utility program Advanced settingsChanging the startup device sequence Updating flashing Bios from a diskette Using system programsUpdating system programs User Guide Basic troubleshooting Troubleshooting and diagnosticsSymptom Action Diagnostic programs PC-Doctor for Windows PC-Doctor for DOSCreating diagnostic diskettes PC-Doctor for Windows PE Cleaning the mouseOptical mouse Non-optical mouse Troubleshooting and diagnostics User Guide Getting information, help, and service Information resourcesOnline Books folder Lenovo CareAccess Help Warranty and safetyUsing the documentation and diagnostic programs Help and serviceCalling for service Using other services Purchasing additional servicesAppendix A. 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 A. Manual modem commands User Guide Appendix B. Notices Television output notice TrademarksIndex 14, 22, 23 Page Part Number