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Lenovo 1993, 1995, 1986, 1985, 1987, 1994, 1982, 1983 Front connector, control, and indicator locations

Models: 1992 1990 1983 1982 1994 1987 1985 1986 1995 1993

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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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Hard disk drive activity indicator Power indicator

Power switch

Optical drive eject/close button

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USB connector (USB port 1)

Headphone connector

Microphone connector

USB connector (USB port 2)

8ThinkCentre User Guide

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Lenovo 1993, 1995, 1986, 1985, 1987, 1994, 1982, 1983, 1990, 1992 manual Front connector, control, and indicator locations

Contents

ThinkCentre User Guide Third Edition June Copyright Lenovo 2011 Contents Appendix A. Notices 107 Index Iv ThinkCentre User Guide Static electricity prevention Important safety informationService and upgrades Power cords and power adapters Extension cords and related devices Heat and product ventilation Plugs and outletsExternal devices Modem safety information Operating environment Laser compliance statement Power supply statementCleaning and maintenance ThinkCentre User Guide Features Product overview Connectivity System management featuresInput/Output I/O features Power supply Security featuresPreinstalled software programs Preinstalled operating system Software provided by Lenovo SpecificationsSoftware overview Lenovo Solution Center Lenovo ThinkVantage ToolsLenovo Welcome Fingerprint Software Product Recovery ThinkVantage Password ManagerThinkVantage Power Manager ThinkVantage Rescue and Recovery Locations ThinkVantage System UpdateAdobe Reader Antivirus software Front connector, control, and indicator locations Locating connectors on the rear of your computer Rear connector locations Connector Description Locating components Component locations Locating parts on the system board System board part locations Locating internal drives Drive bay locations Machine type and model label Machine type and model label Using your computer Frequently asked questionsUsing the keyboard Using Windows shortcut keys Using a fingerprint reader Using the wheel mouseAdjusting audio About your computer audio Setting the volume from the desktop Setting the volume from Control PanelUsing CDs and DVDs Adding the volume icon to the taskbar Playing a CD or DVD Recording a CD or DVD Accessibility and comfort You and your computerArranging your workspace Comfort Electrical outlets and cable lengths Glare and lightingAir circulation Voltage-selection switch Replacement power cordsRegister your computer with Lenovo Moving your computer to another country or region ThinkCentre User Guide Security features Security Installing a padlock Locking the computer cover Attaching an integrated cable lock Using passwordsBios passwords Windows passwords Configuring the fingerprint readerUsing and understanding firewalls Protecting data against viruses Security ThinkCentre User Guide Installing or replacing hardware Installing or replacing hardwareInstalling external options Handling static-sensitive devices Removing the computer cover Removing the computer cover What to do next Removing and reinstalling the front bezelInstalling or replacing a PCI card Opening the PCI card latch Removing a PCI card Installing or replacing a memory module Installing a PCI card Removing a memory module Installing or replacing the optical drive Installing a memory module Removing the optical drive Installing or replacing the card reader Installing the optical drive Installing the card reader Removing the card reader retainer Installing the card reader Replacing the card reader Removing the card reader Replacing the battery Install a new battery Replacing the power supply assembly Replacing the heat sink and fan assembly Removing the screws for the power supply assembly Removing the heat sink and fan assembly Reinstalling the heat sink and fan assembly Replacing the microprocessor Accessing the microprocessor Replacing the primary hard disk drive Removing the primary hard disk drive Installing the primary hard disk drive Replacing the secondary hard disk drive Removing the secondary hard disk drive Replacing the front fan assembly Installing the secondary hard disk drive Removing the front fan assembly Installing the front fan assembly Replacing the rear fan Removing the rear fan Replacing the front audio and USB assembly Installing the rear fan Replacing the internal speaker Removing the old internal speaker Installing a new internal speaker Replacing the keyboard or mouse Completing the parts replacement Connecting the USB keyboard or mouse Reinstalling the computer cover Obtaining device drivers Creating recovery media Recovery informationCreating and using recovery media Performing a backup operation Using recovery mediaPerforming backup and recovery operations Click the Restore your system from a backup icon Performing a recovery operationUsing the Rescue and Recovery workspace Creating a rescue medium Creating and using a rescue mediumUsing a rescue medium Reinstalling preinstalled device drivers Reinstalling preinstalled applications and device driversReinstalling preinstalled applications Solving recovery problems Reinstalling software programsReinstalling device drivers Recovery information ThinkCentre User Guide Viewing and changing settings Using the Setup Utility programStarting the Setup Utility program Password considerations Power-On PasswordAdministrator Password Hard Disk Password Erasing lost or forgotten passwords clearing Cmos Enabling or disabling a device Enabling ErP compliance mode Selecting a startup deviceSelecting a temporary startup device Selecting or changing the startup device sequence Exiting the Setup Utility program ThinkCentre User Guide Updating system programs Using system programsUpdating flashing the Bios from a disc Click Downloads and drivers Updating flashing the Bios from your operating systemRecovering from a POST/BIOS update failure Preventing problems Keeping your computer currentGetting the latest device drivers for your computer Updating your operating system Using System Update Basics Cleaning your computer ComputerKeyboard Optical mouse Moving your computer Good maintenance practicesCleaning a glass-screen surface Troubleshooting and diagnostics Basic troubleshooting Troubleshooting procedure Troubleshooting Audio problems No audio in Windows No audio in DOS applications or games CD problemsSound comes from one external speaker only Black screen instead of DVD video DVD problemsCD or DVD does not work DVD movie will not play No audio or intermittent audio while playing DVD moviePlayback is very slow or choppy Invalid disc or no disc found message All or some keys on the keyboard do not work Intermittent problemsKeyboard, mouse, or pointing device problems Monitor problems Wireless keyboard does not workMouse or pointing device does not work Pointer on the screen does not move smoothly with the mouse Wrong characters appear on the screen Image appears to be flickering Image is discolored Networking problemsEthernet problems Wake on LAN feature is not working Your computer cannot connect to the networkClick Start Control Panel Click Hardware and Sound Adapter stops working for no apparent reason Bluetooth problems Wireless LAN problemWireless WAN problem Option problems An option that was just installed does not workSound does not come from the Bluetooth headphone An option that previously worked does not work now Performance and lockup problems Click Disk CleanupInsufficient free hard disk drive space Click Start Computer Insufficient memory Printer problemsExcessive number of fragmented files Software does not work as expected Serial port problemsSoftware problems USB problems Diagnostic programs Lenovo Solution Center Lenovo ThinkVantage Toolbox PC-Doctor for DOS Creating a diagnostic discRunning the diagnostic program from a diagnostic disc ThinkCentre User Guide Getting information, help, and service Help and service Using the documentation and diagnostic programCalling for service Lenovo Support Web site Using other services Purchasing additional services ThinkCentre User Guide Appendix A. Notices 107 Trademarks Appendix B. Regulatory information Export classification noticeTelevision output notice Electronic emissions notices Industry Canada Class B emission compliance statement Additional regulatory information ThinkCentre User Guide Appendix C. Weee and recycling information Important Weee InformationRecycling information 113 Battery recycling information for Taiwan Recycling information for Brazil Battery recycling information for the European Union ThinkCentre User Guide 117 China RoHS Turkish RoHSUkraine RoHS India RoHS Index 119 Memory module 121 ThinkCentre User Guide Page 1P0B07068