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Lenovo 7626, 6139, 7348, 8338, 8820, 7637, 7479, 7356, 7359 To replace the front audio and USB assembly

Models: 9961 7187 6136 7345 7629 7359 7356 7626 7479 7637 8820 8338 7348 6139

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To replace the front audio and USB assembly:

This section provides instructions on how to replace the front audio and USB assembly.

To replace the front audio and USB assembly:

1.Open the computer cover. See “Opening the computer cover” on page 12.

2.Remove the front bezel by releasing the two tabs and pivoting the bezel forward.

Figure 22. Removing the front bezel

3.Disconnect the front audio and USB assembly cables from the system board and note the cables routing. See “Locating parts on the system board” on page 10.

26User Guide

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Lenovo 7626, 6139, 7348, 8338, 8820, 7637, 7479, 7356, 7359, 7629, 7345, 6136, 7187, 9961 To replace the front audio and USB assembly

Contents

Page Page ThinkCentre User Guide Second Edition May Copyright Lenovo 2009. All rights reservedContents ivUser Guide Important safety information viUser Guide Note: Use only computer parts provided by Lenovo FeaturesChapter 1. Product overview System informationVideo subsystem System management featuresInput/Output features Audio subsystemPreinstalled software PowerSecurity features Operating system, preinstalledWeight SpecificationsDimensions EnvironmentSoftware provided by Lenovo Software overviewLenovo System Toolbox PC-Doctorfor Windows PE Locating connectors on the front of your computerLocations Adobe ReaderLocating connectors on the rear of your computer Figure 2. Rear connector locationsConnector DescriptionFigure 3. Component locations Locating components5 Heat sink 6 Battery 7 Memory slots 1 Optical drive 2 Front bezelLocating parts on the system board Handling static-sensitivedevices Installing options and replacing hardwareNote: Use only computer parts provided by Lenovo Installing external options Opening the computer coverInstalling or replacing a memory module What to do next Figure 7. Installing a memory moduleFigure 6. Removing the memory module Replacing the hard disk drive Replacing the optical drive Figure 10. Removing the front bezel Figure 11. Removing the optical driveReplacing the battery Replacing the heat sink 4.Lift the failing heat sink off the system board NotesReplacing the microprocessor Figure 18. Removing the microprocessor Notes22User Guide Replacing the adapter card 9.Close the adapter card retainer Replacing the front audio and USB assembly Replacing the internal speakerTo replace the front audio and USB assembly Replacing the AC power adapter Figure 24. Connecting the AC power adapter 28User GuideReplacing the keyboard Replacing the mouseCompleting the parts replacement 3.Close the computer cover as shown Installing security features Obtaining device driversWhat to do next Password protectionIntegrated cable lock Figure 29. Integrated cable lockErasing lost or forgotten passwords clearing CMOS Chapter 3. Recovery information Creating and using Product Recovery discsPerforming backup and recovery operations Using the Rescue and Recovery workspace Notes Creating and using rescue mediaTo create rescue media, do the following Creating and using a Recovery Repair diskette To use rescue media, do one of the followingRecovering or installing device drivers Setting a rescue device in the startup sequence Solving recovery problems42User Guide Viewing and changing settings Chapter 4. Using the Setup UtilityStarting the Setup Utility program Using passwordsPrivileged Access Password Password considerationsPower-OnPassword Hard Disk User PasswordSelecting a startup device Enabling or disabling a deviceSelecting a temporary startup device Selecting or changing the startup device sequence Advanced settingsExiting from the Setup Utility program 46User GuideUpdating flashing BIOS from a disc Using system programsChapter 5. Updating system programs Recovering from a POST/BIOS update failure Updating flashing BIOS from your operating system→Continue → Downloads and drivers 13.Reconnect any cables that were disconnected 50User Guide Chapter 6. Troubleshooting and diagnostics Basic troubleshootingAction SymptomThe keyboard does not work PC-Doctorfor Windows PE Diagnostic programsLenovo System Toolbox Chapter 6. Troubleshooting and diagnosticsRunning diagnostics from the disc Cleaning the mouseCreating a diagnostic CD/DVD image PC-Doctorfor DOSNon-opticalmouse 11.Reconnect the mouse cable to the computer Online Books folder Chapter 7. Getting information, help, and serviceInformation resources ThinkVantage Productivity CenterSafety and Warranty Access HelpLenovo Welcome Using the documentation and diagnostic programs Help and serviceCalling for service Using other services Purchasing additional services1009 Think Place - Building One Morrisville, NC Appendix. NoticesLenovo United States, Inc U.S.A Attention: Lenovo Director of LicensingTelevision output notice TrademarksIndex A Page Page 66User Guide Page Part Number: 53Y9936 Printed in USA 1P P/N: 53Y9936