Lenovo 9646, 6490, 9635, 9637, 9277, 9269, 9631 Laser compliance statement, Power supply statement

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Laser compliance statement

Some personal computer models are equipped from the factory with a CD or DVD drive. CD and DVD drives are also sold separately as options. CD and DVD drives are laser products. These drives are certified in the U.S. to conform to the requirements of the Department of Health and Human Services 21 Code of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. Elsewhere, these drives are certified to conform to the requirements of the International Electrotechnical Commission (IEC) 60825-1 and CENELEC EN 60 825-1 for Class 1 laser products.

When a CD or DVD drive is installed, note the following handling instructions.

Caution

Use of controls or adjustments or performance of procedures other than those specified herein might result in hazardous radiation exposure.

Do not remove the drive covers. Removing the covers of the CD or DVD drive could result in exposure to hazardous laser radiation. There are no serviceable parts inside the CD or DVD drive.

Some CD and DVD drives contain an embedded Class 3A or Class 3B laser diode. Note the following statement.

Danger

Laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam.

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.

Products with television tuner options installed

The notice below applies to products containing television (TV) tuner devices that connect to external antennas or to cable/CATV systems, or both, and that are intended to be installed in North America. Users and installers in other countries should follow local codes and ordinances when installing appliances that connect to external antennas and cable/CATV systems. If local codes are not applicable, it is recommended that users/installers follow guidelines similar to those that follow.

Important safety information xiii

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Contents User Guide Page User Guide Page Contents Troubleshooting Conditions that require immediate action Important safety informationService and upgrades General safety guidelinesStatic electricity prevention Power cords and power adaptersVoltage-selection switch Batteries Extension cords and related devicesPlugs and outlets External devicesHeat and product ventilation Operating environment Electrical current safety informationLithium battery notice Modem safety informationTo connect To disconnect Power supply statement Products with television tuner options installedLaser compliance statement Proper grounding for the cable Example of antenna groundingData safety Cleaning and maintenanceUsing headphones or earphones Additional safety information Introduction Xviii User Guide Comfort Arranging your workspaceGlare and lighting Air circulationElectrical outlets and cable lengths Connecting your computer Setting up your computerUser Guide Setting up your computer User Guide 1394 Finishing the software installation Turning on powerUpdating your antivirus software Installing other operating systemsCompleting important tasks Updating your operating systemUser Guide Features Installing optionsVideo subsystem Operating systems preinstalled varies by model type Environment SpecificationsDimensions WeightTools required Available optionsHandling static-sensitive devices Installing external optionsLocating the connectors on the front of your computer Locating the connectors on the rear of your computer Obtaining device drivers Connector DescriptionRemoving the cover Locating components Identifying parts on the system board Installing options User Guide What to do next Installing memoryInstalling adapters What to do next Drive specifications Installing internal drivesInstalling options Installing a drive in bay 1 or bay Installing options Connecting the first optical drive Connecting drivesInstalling security features Connecting a serial ATA hard disk driveIntegrated cable lock Password protection Changing the batteryPadlock Erasing a lost or forgotten password clearing Cmos Replacing the cover and connecting the cables User Guide Creating and using the Product Recovery disc Recovering softwarePerforming backup and recovery operations Using the Rescue and Recovery workspace Creating and using rescue media To create rescue media, do the following Creating and using a Recovery Repair disketteRecovering or installing device drivers Solving recovery problems Setting a rescue device in the startup sequenceUser Guide Using passwords Using the Setup UtilityStarting the Setup Utility program Viewing and changing settingsUsing Security Profile by Device User PasswordAdministrator Password Setting, changing, and deleting a passwordSelecting a startup device Selecting a temporary startup deviceChanging the startup device sequence Exiting from the Setup Utility program Advanced settingsUsing system programs Updating flashing Bios from a disketteUpdating system programs User Guide Troubleshooting and diagnostics Basic troubleshootingSymptom Action Diagnostic programs PC-Doctor for DOS PC-Doctor for WindowsRunning diagnostics from the CD or diskettes Non-optical mouse Cleaning the mousePC-Doctor for Windows PE Optical mouse1 Retainer ring 2 Ball 3 Plastic rollers 4 Ball cage ThinkVantage Productivity Center Getting information, help, and serviceInformation resources Online Books folderAccess Help Safety and warrantyHelp and service Calling for service Using the documentation and diagnostic programsPurchasing additional services Using other servicesBasic AT commands Appendix A. Manual modem commandsInternal speaker on until carrier detected Low speaker volumeSet Pulse dial as default Set Tone Dial as defaultExtended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 2 commands Fax Class 1 commandsVoice commands Appendix A. Manual modem commands User Guide Appendix B. Notices Trademarks Television output noticeIndex Page Page Part Number