User Manual
Table Of Contents
- Important safety information
- Chapter 1. Product overview
- Chapter 2. Installing or replacing hardware
- Handling static-sensitive devices
- Installing or replacing hardware
- Installing external options
- Opening the computer cover
- Removing and reinstalling the front bezel
- Installing or replacing a memory module
- Replacing the hard disk drive
- Replacing the optical drive
- Replacing the battery
- Replacing the heat sink
- Replacing the internal speaker
- Replacing the front audio and USB assembly
- Replacing the ac power adapter
- Replacing the ac power adapter bracket
- Replacing the keyboard or mouse
- Completing the parts replacement
- Installing security features
- Chapter 3. Recovery information
- Chapter 4. Using the Setup Utility program
- Chapter 5. Updating system programs
- Chapter 6. Troubleshooting and diagnostics
- Chapter 7. Getting information, help, and service
- Appendix A. Notices
- Index
4.DisconnectthefrontaudioandUSBassemblycablesfromthesystemboardandnotethecablesrouting.
See“Locatingpartsonthesystemboard”onpage9.
5.RemovethescrewthatsecuresthefrontaudioandUSBassemblytothechassis.
Figure18.RemovingthefrontaudioandUSBassembly
6.LocatethepowerswitchassemblybesidethefrontaudioandUSBassembly.Removethepowerswitch
assemblybyreleasingthetabthatsecuresthepowerswitchassemblytothechassis.
7.CompletelyremovethefailingfrontaudioandUSBassemblyfromthechassis.
8.InstallthenewfrontaudioandUSBassemblyintothechassisandalignthescrewholeinthefrontaudio
andUSBassemblywiththecorrespondingholeinthechassis.
9.InstallthescrewtosecurethenewfrontaudioandUSBassemblytothechassis.
10.Installthenewpowerswitchassemblyintothechassis.
11.ConnectthefrontUSB,frontpanel,andfrontaudiocablestothesystemboard.See“Locatingpartson
thesystemboard”onpage9.
12.Reinstallthefrontbezel.See“Removingandreinstallingthefrontbezel”onpage12.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage25
.
Replacingtheacpoweradapter
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkCentre
SafetyandWarrantyGuide,goto:
http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoreplacetheacpoweradapter.
Toreplacetheacpoweradapter,dothefollowing:
Chapter2.Installingorreplacinghardware21