Lenovo 1837, 1938, 1962, 1942, 1782, 1739, 1762, 1665 Front connector, control, and indicator locations

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Locating connectors, controls, and indicators on the front of your computer

Figure 1 “Front connector, control, and indicator locations” on page 8 shows the locations of the connectors, controls, and indicators on the front of your computer.

Figure 1. Front connector, control, and indicator locations

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Integrated Microphone Integrated camera indicator Integrated camera block shield Liquid crystal display (LCD) panel Power switch

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Hard disk drive activity indictor

Brightness-up / Auto-adjusting control 1

Brightness-down control

Foot stand

8ThinkCentre User Guide

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Contents ThinkCentre User Guide Second Edition October Copyright Lenovo Contents Appendix A. Notices Important safety information Service and upgradesStatic electricity prevention Power cords and power adapters Extension cords and related devicesPlugs and outlets External devicesHeat and product ventilation Modem safety information Operating environmentPower supply statement Cleaning and maintenanceLaser compliance statement Viii ThinkCentre User Guide Features Product overviewInput/Output I/O features System management featuresColor temperature adjustment Power supplyPreinstalled software programs Preinstalled operating systemSpecifications Software overviewSoftware provided by Lenovo Lenovo ThinkVantage Tools Product RecoveryThinkVantage Password Manager Lenovo WelcomeAdobe Reader Antivirus software Locations Front connector, control, and indicator locations Locating connectors on the rear of your computer Rear connector locationsAdjusting the computer stand Connector DescriptionMachine type and model label Machine type and model labelThinkCentre User Guide Using the keyboard Using your computerFrequently asked questions Using Windows shortcut keysUsing the wheel mouse Using the blue ThinkVantage buttonUsing a fingerprint reader Adjusting audioUsing CDs and DVDs Setting the volume from the desktopSetting the volume from Control Panel Adding the volume icon to the taskbarHandling and storing CD and DVD media Playing a CD or DVDRecording a CD or DVD Using the single-touch feature Using the single-touch and multi-touch featureColor temperature adjustment Using the multi-touch featureMaking brightness adjustment Selecting a pre-defined color temperatureSwitching to RGB adjustment Red-adjustment Green-adjustment Blue-adjustment ExitUsing your computer ThinkCentre User Guide Arranging your workspace Accessibility and comfortYou and your computer ComfortGlare and lighting Air circulationElectrical outlets and cable lengths Register your computer with Lenovo Voltage-selection switchReplacement power cords Moving your computer to another country or regionThinkCentre User Guide Security features SecurityUsing passwords Bios passwordsAttaching an integrated cable lock Using and understanding firewalls Windows passwordsSetting the fingerprint reader Protecting data against virusesThinkCentre User Guide Installing or replacing hardware Installing or replacing hardwareInstalling external options Replacing the wireless keyboard Replacing the wireless mouseOpening the battery compartment Closing the battery compartment cover Obtaining device driversRecovery information Creating and using recovery mediaCreating recovery media Using recovery media Performing backup and recovery operationsPerforming a backup operation Performing a recovery operation Using the Rescue and Recovery workspaceClick the Restore your system from a backup icon Creating and using a rescue medium Using a rescue mediumCreating a rescue medium Reinstalling preinstalled applications and device drivers Reinstalling preinstalled applicationsReinstalling preinstalled device drivers Reinstalling software programs Reinstalling device driversSolving recovery problems Recovery information ThinkCentre User Guide Using the Setup Utility program Starting the Setup Utility programViewing and changing settings Administrator Password Password considerationsPower-On Password Hard Disk PasswordSelecting a temporary startup device Enabling or disabling a deviceSelecting a startup device Selecting or changing the startup device sequenceExiting from the Setup Utility program Using system programs Updating flashing the Bios from a discUpdating system programs Updating flashing the Bios from your operating system Click Downloads and driversKeeping your computer current Preventing problemsUsing System Update Getting the latest device drivers for your computerBasics Keyboard Cleaning your computerComputer Optical mouseGood maintenance practices Cleaning a glass-screen surfaceMoving your computer Troubleshooting and diagnostics Basic troubleshootingTroubleshooting procedure TroubleshootingAudio problems No audio in WindowsCD problems Sound comes from one external speaker onlyNo audio in DOS applications or games DVD problems CD or DVD does not workBlack screen instead of DVD video Playback is very slow or choppy DVD movie will not playNo audio or intermittent audio while playing DVD movie Invalid disc or no disc found messageIntermittent problems Keyboard, mouse, or pointing device problemsAll or some keys on the keyboard do not work Pointer on the screen does not move smoothly with the mouse Wireless keyboard does not workMouse or pointing device does not work Fingerprint reader does not workMonitor problems Wrong characters appear on the screenImage appears to be flickering Networking problems Ethernet problemsImage is discolored Click Start Control Panel Click Hardware and Sound Wake on LAN feature is not workingYour computer cannot connect to the network Adapter stops working for no apparent reasonWireless LAN problem Wireless WAN problemBluetooth problems Sound does not come from the Bluetooth headphone Option problemsAn option that was just installed does not work An option that previously worked does not work nowInsufficient free hard disk drive space Performance and lockup problemsClick Disk Cleanup Click Start ComputerPrinter problems Serial port problemsExcessive number of fragmented files Software problems Software does not work as expectedUSB problems Diagnostic programsLenovo ThinkVantage Toolbox Creating a diagnostic discRunning the diagnostic program from a diagnostic disc PC-Doctor for DOSGetting information, help, and service Calling for service Help and serviceUsing the documentation and diagnostic programs Lenovo Support Web siteUsing other services Purchasing additional servicesThinkCentre User Guide Appendix A. Notices Trademarks Television output notice Appendix B. Regulatory informationExport classification notice Electronic emissions noticesIndustry Canada Class B emission compliance statement Additional regulatory information ThinkCentre User Guide Appendix C. Weee and recycling information Important information for the European Directive 2002/96/ECRecycling information ThinkCentre User Guide Index Optical mouse cleaning Password Administrator Considerations Page 0B03427