Dell 1721 manual Replacing the CIR Board, Removing the USB Connector Board

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8.Remove the palm rest (see Removing the Palm Rest).

9.Remove the M2.5 x 5-mm screw that secures the CIR board to the base of the computer.

10.Lift the CIR board out of the computer.

NOTICE: Do not disconnect the CIR cable from the system board.

11. Disconnect the CIR cable from the CIR board.

Replacing the CIR Board

CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide.

1.Connect the CIR cable to the CIR board.

2.Align the screw hole in the CIR board with the screw hole in the base of the computer, and then lower the board into place.

3.Replace the M2.5 x 5-mm screw and secure the CIR board to the base of the computer.

4.Replace the palm rest (see Replacing the Palm Rest).

5.Replace the internal card with Bluetooth wireless technology, if installed (see Replacing the Bluetooth Card).

6.Replace the display assembly (see Replacing the Display Assembly).

7.Replace the keyboard (see Replacing the Keyboard).

8.Replace the hinge cover (see Replacing the Hinge Cover).

9.Replace the hard drive (see Replacing a Hard Drive).

10.Replace the optical drive (see Replacing the Optical Drive).

USB Connector Board

Removing the USB Connector Board

CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide.

1.Follow the instructions in Before You Begin.

2.Remove the optical drive (see Removing the Optical Drive).

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Contents Page Removing the Wireless Sniffer Board Wireless Sniffer BoardBack to Contents Computer Base and ComponentsRemoving the Audio Connector Board Audio Connector BoardReplacing the Wireless Sniffer Board Removing the CIR Board Replacing the Audio Connector BoardConsumer Infrared CIR Board Replacing the CIR Board USB Connector BoardRemoving the USB Connector Board Replacing the USB Connector Board Modem ConnectorReplacing the Modem Connector Removing the Modem ConnectorExpressCard Cage Removing the ExpressCard CageReplacing the ExpressCard Cage Computer BaseReplacing the Computer Base Removing the Computer BaseRecommended Tools Before You BeginBefore Working Inside Your Computer Recommended Tools Before Working Inside Your ComputerBack to Contents Flashing the Bios From the Hard Drive Flashing the BiosFlashing the Bios From a CD Back to Contents Removing the Bluetooth Card Internal Card With Bluetooth Wireless TechnologyReplacing the Bluetooth Card Removing the Bluetooth Card Replacing the Bluetooth CardInstalling a Memory Card Using the Memory Card ReaderMemory Card Blanks Removing a Memory Card or BlankBack to Contents Replacing the Coin-Cell Battery Coin-Cell BatteryRemoving the Coin-Cell Battery Back to Contents Removing the Processor Module Processor ModuleReplacing the Processor Module Page Replacing the Processor Thermal-Cooling Assembly Processor Thermal-Cooling AssemblyRemoving the Processor Thermal-Cooling Assembly Back to Contents Display Display AssemblyRemoving the Display Assembly Replacing the Display Assembly Removing the Display Bezel Display BezelRemoving the Display Panel Display PanelReplacing the Display Bezel Removing the Display Latch Display LatchReplacing the Display Panel Page Replacing the Display Latch Camera and Microphone AssemblyRemoving the Camera and Microphone Assembly Replacing the Camera and Microphone Assembly Removing the Fan FanReplacing the Fan Removing the Fan Replacing the FanBack to Contents Removing the FCM Flash Cache Module FCMReplacing the FCM Removing the FCM Replacing the FCMReplacing the Graphics Card Assembly Graphics Card AssemblyRemoving the Graphics Card Assembly Back to Contents Removing a Hard Drive Replacing a Hard Drive Hard DriveRemoving a Hard Drive Replacing a Hard Drive Removing the Hinge Cover Hinge CoverReplacing the Hinge Cover Removing the Hinge Cover Replacing the Hinge CoverRemoving the Keyboard KeyboardReplacing the Keyboard Removing the Keyboard Replacing the KeyboardBack to Contents Replacing the Battery Latch Assembly Battery Latch AssemblyRemoving the Battery Latch Assembly Back to Contents Removing a Memory Module MemoryDimm a Memory Module Dimm B Memory ModuleReplacing a Memory Module Dimm B Memory Module Back to Contents Removing a Mini Card Wireless Mini CardsWlan Card Removing a Mini Card Replacing a Mini CardMobile Broadband or Wwan Card Page Wpan Card Replacing a Mini Card Back to Contents Removing the Modem ModemReplacing the Modem Removing the Modem Replacing the ModemBack to Contents Removing the Optical Drive Optical DriveReplacing the Optical Drive Removing the Optical Drive Replacing the Optical DriveRemoving the Palm Rest Replacing the Palm Rest Palm RestRemoving the Palm Rest Replacing the Palm Rest Removing an ExpressCard or Blank ExpressCardsExpressCard Blanks Installing an ExpressCard or Blank USB Connector Pin Assignments for I/O ConnectorsVideo Connector Video TV-Out ConnectorConnector Replacing the Speaker Assembly Speaker AssemblyRemoving the Speaker Assembly Back to Contents Remove the processor see Removing the Processor Module System Board AssemblyRemoving the System Board Assembly Replace the processor see Replacing the Processor Module Replacing the System Board AssemblyBack to Contents Back to Contents