Lenovo 9134, 9136, 9127, 9129, 9120 manual Replacing the keyboard, Replacing the rear fan assembly

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5.Pull on the tips of the rubber mounts until the fan assembly is in place.

Figure 34. Replacing the rear fan assembly

6.Connect the rear fan assembly cable to the system fan connector on the system board.

7.Go to Chapter 4, “Completing the parts replacement,” on page 43.

Replacing the keyboard

Attention

Do not open your computer or attempt any repair before reading the “Important safety information” in the Safety and Warranty Guide that was included with your computer. To obtain a copy of the Safety and Warranty Guide, go to the Support Web site at http://www.lenovo.com/support.

This section provides instructions on how to replace a keyboard.

1.Remove any media (diskettes, CDs, or tapes) from the drives, shut down your operating system, and turn off all attached devices and the computer.

2.Unplug all power cords from electrical outlets.

Chapter 3. Installing options and replacing hardware 39

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Contents ThinkCentre Hardware Installation and Replacement Guide Page ThinkCentre Hardware Installation and Replacement Guide Page Contents Iv Hardware Installation and Replacement Guide Figures Vi Hardware Installation and Replacement Guide Important safety information Hardware Installation and Replacement Guide Additional information resources OverviewHandling static-sensitive devices Locations Controls and connectorsConnector locations Locating connectors on the rear of your computerConnector Description Component locations Locating componentsShows the location of parts on the system board Identifying parts on the system boardHardware Installation and Replacement Guide Removing the cover Installing options and replacing hardwareInstalling external options Removing the computer cover Removing and replacing the front bezelRemoving the front bezel Installing memory Installing internal optionsWhat to do next Installing PCI adaptersOpening the adapter latch Closing the adapter latch Drive specifications Installing internal drivesInstalling a drive in bay 1 or bay Locating the spare retainer bracket Connecting a parallel ATA drive Connecting drivesConnecting a serial ATA drive Removing the battery Replacing the batteryRemoving the power supply screws Replacing the power supply assemblyRemoving the heat sink Replacing the heat sinkReplacing a hard disk drive Installing the new heat sinkRemoving the hard disk drive Installing the hard disk drive into bracket Replacing an optical drive Installing the hard disk drive and bracketRemoving the optical drive Removing the diskette drive Replacing the diskette driveRetainer bracket for diskette drive Replacing a memory moduleReplacing a PCI adapter Installing the new memory moduleRemoving the PCI adapter Install the new adapter into the same adapter connector Replacing the front fan assembly Replacing the rear fan assembly Pull the rear fan assembly out of the chassis Replacing the keyboard Replacing the rear fan assemblyLocate the keyboard connector. See Figure Replacing the mouse Mouse connectors, standard and USBHardware Installation and Replacement Guide Replacing the computer cover Completing the parts replacementObtaining device drivers Integrated cable lock Security featuresPadlock Password protectionErasing a lost or forgotten password clearing Cmos Security features Hardware Installation and Replacement Guide Appendix. Notices Trademarks Television output noticeCRU IndexPage Page Part Number 43C4834
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