Document Outline

• Dell™ Inspiron™ N5110 Service Manual
• Notes, Cautions, and Warnings
• Contents
• Before You Begin
  • Recommended Tools
  • Turning Off Your Computer
  • Before Working Inside Your Computer
    • 2
• Top Cover
  • Removing the Top Cover
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Press and hold the release button that secures the top cover to the display back cover.
    • 3 Slide and lift the top cover.
  • Replacing the Top Cover
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Align the top cover to the display back cover.
    • 3 Slide the top cover until it clicks into place. Ensure that there are no gaps between the top cover and display back cover.
    • 3
• Battery
  • Removing the Battery
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Shut down the computer and turn it over.
    • 3 Slide the battery release latch and the battery lock latch to the unlock positions.
    • 4 Slide and lift the battery out of the battery bay.
  • Replacing the Battery
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Slide the battery into the battery bay until it clicks into place.
    • 3 Slide the battery lock latch to the lock position.
    • 4
• Module Cover
  • Removing the Module Cover
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Remove the battery (see "Removing the Battery" on page 15).
    • 3 Loosen the captive screw that secures the module cover to the base cover.
    • 4 Using your fingertips, release the tabs on the module cover from the slots on the computer base.
    • 5 Lift the module cover off the computer base.
  • Replacing the Module Cover
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Align the tabs on the module cover with the slots on the computer base and snap the module cover into place.
    • 3 Tighten the captive screw that secures the module cover to the computer base.
    • 4 Replace the battery (see "Replacing the Battery" on page 16).
  • Memory Module(s)
    • Removing the Memory Module(s)
    • Replacing the Memory Module(s)
  • Optical Drive
    • Removing the Optical Drive
    • Replacing the Optical Drive
      • 7
• Keyboard
  • Removing the Keyboard
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Remove the battery (see "Removing the Battery" on page 15).
    • 3 Turn the computer over and open the display as far as possible.
    • 4 Slide a plastic scribe between the slots on the keyboard and release the tabs on the plam rest.
    • 5 Lift and slide the keyboard to remove the tabs on the keyboard from the slots on the palm rest.
    • 6 Carefully turn the keyboard over and place it on the palm rest assembly.
    • 7 Lift the connector latch that secures the keyboard cable to the connector on the system board and remove the keyboard cable.
    • 8 Lift the keyboard off the computer.
  • Replacing the Keyboard
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Slide the keyboard cable into the connector on the system board and press down on the connector latch to secure the cable.
    • 3 Slide the tabs on the keyboard into the slots on the palm-rest assembly and lower the keyboard into place.
    • 4 Gently press around the edges of the keyboard and slide it upwards to secure the keyboard under the tabs on the palm rest.
    • 5 Close the display and turn the computer over.
    • 6 Replace the battery (see "Replacing the Battery" on page 16).
    • 8
• Palm-Rest Assembly
  • Removing the Palm-Rest Assembly
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Remove the battery (see "Removing the Battery" on page 15).
    • 3 Remove the six screws that secure the palm-rest assembly to the computer base.
    • 4 Turn the computer over and open the display as far as possible.
    • 5 Remove the keyboard (see "Removing the Keyboard" on page 27).
    • 6 Remove the four screws on the palm-rest assembly.
    • 7 Disconnect the power-button board cable, touch-pad cable, and hot-key board cable from the connectors on the system board.
    • 8 Using a plastic scribe, carefully pry out the palm-rest assembly along the rear edge and then ease the palm-rest assembly from the computer base
    • 9 Lift the palm-rest assembly off the computer base.
  • Replacing the Palm-Rest Assembly
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Align the tabs on the palm rest assembly with the slots on the computer base and gently snap the palm rest assembly in place.
    • 3 Slide the touch-pad cable, power-button board cable, and hot-key board cable into the connectors on the system board and press down on the connector latches to secure them.
    • 4 Replace the four screws on the palm-rest assembly.
    • 5 Replace the keyboard (see "Replacing the Keyboard" on page 29).
    • 6 Close the display and turn the computer over.
    • 7 Replace the six screws that secure the palm-rest assembly to the computer base.
    • 8 Replace the battery (see "Replacing the Battery" on page 16).
    • 9
• Wireless Mini-Card(s)
  • Removing the Mini-Card(s)
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Remove the battery (see "Removing the Battery" on page 15).
    • 3 If you are removing the WiMax/WWAN Mini-Card:
      • a Remove the module cover (see "Removing the Module Cover" on page 17).
      • b Disconnect the antenna cables from the Mini-Card.
      • c Remove the screw that secures the Mini-Card to the system board.
      • d Lift the Mini-Card out of the system-board connector.
    • 4 If you are removing the WLAN Mini-Card:
      • a Follow the instructions from step 3 to step 9 in "Removing the Palm-Rest Assembly" on page 31.
      • b Disconnect the antenna cables from the Mini-Card.
      • c Remove the screw that secures the Mini-Card to the system board.
      • d Lift the Mini-Card out of the system-board connector.
  • Replacing the Mini-Card(s)
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Remove the new Mini-Card from its packaging.
    • 3 Insert the Mini-Card connector at a 45-degree angle into the system-board connector.
    • 4 Press the other end of the Mini-Card down into the slot on the system board and replace the screw that secures the Mini-Card to the system board.
    • 5 Connect the appropriate antenna cables to the Mini-Card you are installing. The following table provides the antenna cable color scheme for the Mini-Cards supported by your computer.
    • 6 If you are replacing the WiMax/WWAN Mini-Card:
    • 7 If you are replacing the WLAN Mini-Card:
    • 8 Replace the battery (see "Replacing the Battery" on page 16).
    • 9 Install the drivers and utilities for your computer, as required.
    • 10
• Display
  • Display Assembly
    • Removing the Display Assembly
      • 1 Follow the instructions in "Before You Begin" on page 9.
      • 2 Remove the battery (see "Removing the Battery" on page 15).
      • 3 Remove the two screws that secure the display assembly to the computer base.
      • 4 Follow the instructions from step 3 to step 9 in "Removing the Palm-Rest Assembly" on page 31.
      • 5 Disconnect the display cable and touch-screen cable from the system-board connectors.
      • 6 Disconnect the Mini-Card antenna cables from the connectors on the Mini-Card(s) (see "Removing the Mini-Card(s)" on page 37).
      • 7 Note the routing of the Mini-Card antenna cables and remove the cables from the routing guides.
      • 8 Remove the four screws that secure the display assembly to the computer base.
      • 9 Lift the display assembly off the computer base.
    • Replacing the Display Assembly
      • 1 Follow the instructions in "Before You Begin" on page 9.
      • 2 Place the display assembly in position and replace the four screws that secure the display assembly to the computer base.
      • 3 Route the Mini-Card antenna cables through the routing guides.
      • 4 Connect the Mini-Card antenna cables to the Mini-Card(s) (see "Replacing the Mini-Card(s)" on page 39).
      • 5 Connect the display cable and touch-screen cable to the connectors on the system board.
      • 6 Follow the instructions from step 2 to step 7 in "Replacing the Palm-Rest Assembly" on page 34.
      • 7 Replace the two screws that secure the display assembly to the computer base.
      • 8 Replace the battery (see "Replacing the Battery" on page 16).
  • Display Bezel
    • Removing the Display Bezel
      • 1 Follow the instructions in "Before You Begin" on page 9.
      • 2 Remove the top cover (see "Removing the Top Cover" on page 13).
      • 3 Remove the display assembly (see "Removing the Display Assembly" on page 41).
      • 4 Using your fingertips, carefully pry up the inside edge of the display bezel.
      • 5 Remove the display bezel.
    • Replacing the Display Bezel
      • 1 Follow the instructions in "Before You Begin" on page 9.
      • 2 Realign the display bezel over the display panel and gently snap it into place.
      • 3 Replace the display assembly (see "Replacing the Display Assembly" on page 43).
      • 4 Replace the top cover (see "Replacing the Top Cover" on page 14).
  • Display Panel
    • Removing the Display Panel
      • 1 Follow the instructions in "Before You Begin" on page 9.
      • 2 Remove the display assembly (see "Removing the Display Assembly" on page 41).
      • 3 Remove the display bezel (see "Removing the Display Bezel" on page 44).
      • 4 Disconnect the camera cable from the connector on the camera module.
      • 5 Remove the eight screws that secure the display panel to the display back cover.
      • 6 Lift the display panel off the display back cover.
      • 7 Make a note of the display cable and Mini-Card antenna cables routing and remove them from the routing guides on the display back cover.
      • 8 Turn the display panel over and place it on a clean surface.
      • 9 Remove the display cable (see "Removing the Display Cable" on page 48).
      • 10 Remove the display-panel brackets (see "Removing the Display-Panel Brackets" on page 50).
    • Replacing the Display Panel
      • 1 Follow the instructions in "Before You Begin" on page 9.
      • 2 Replace the display-panel brackets (see "Replacing the Display-Panel Brackets" on page 50).
      • 3 Replace the display cable (see "Replacing the Display Cable" on page 49).
      • 4 Connect the camera cable to the connector on the camera module.
      • 5 Route the display cable and Mini-Card antenna cables through the routing guides on the display back cover.
      • 6 Align the screw holes on the display panel with the screw holes on the display back cover and replace the eight screws.
      • 7 Replace the display bezel (see "Replacing the Display Bezel" on page 45).
      • 8 Replace the display assembly (see "Replacing the Display Assembly" on page 43).
  • Display Cable
    • Removing the Display Cable
      • 1 Follow the instructions in "Before You Begin" on page 9.
      • 2 Remove the display assembly (see "Removing the Display Assembly" on page 41).
      • 3 Remove the display bezel (see "Removing the Display Bezel" on page 44).
      • 4 Remove the display panel (see "Removing the Display Panel" on page 46).
      • 5 Lift the tape that secures the display cable to the display-board connector and disconnect the display cable.
    • Replacing the Display Cable
      • 1 Follow the instructions in "Before You Begin" on page 9.
      • 2 Connect the display cable to the display-board connector and secure it with the tape.
      • 3 Replace the display panel (see "Replacing the Display Panel" on page 47).
      • 4 Replace the display bezel (see "Replacing the Display Bezel" on page 45).
      • 5 Replace the display assembly (see "Replacing the Display Assembly" on page 43).
  • Display-Panel Brackets
    • Removing the Display-Panel Brackets
      • 1 Follow the instructions in "Before You Begin" on page 9.
      • 2 Remove the display assembly (see "Removing the Display Assembly" on page 41).
      • 3 Remove the display bezel (see "Removing the Display Bezel" on page 44).
      • 4 Remove the display panel (see "Removing the Display Panel" on page 46).
      • 5 Remove the four screws (two on each side) that secure the display-panel brackets to the display panel.
    • Replacing the Display-Panel Brackets
      • 1 Follow the instructions in "Before You Begin" on page 9.
      • 2 Align the screw holes on the display-panel bracket with the screw holes on the display panel and replace the four screws (two on each side).
      • 3 Replace the display panel (see "Replacing the Display Panel" on page 47).
      • 4 Replace the display bezel (see "Replacing the Display Bezel" on page 45).
      • 5 Replace the display assembly (see "Replacing the Display Assembly" on page 43).
  • Hinge Cover
    • Removing the Hinge Cover
    • Replacing the Hinge Cover
  • Camera Module
    • Removing the Camera Module
    • Replacing the Camera Module
      • 13
• Coin-Cell Battery
  • Removing the Coin-Cell Battery
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Remove the battery (see "Removing the Battery" on page 15).
    • 3 Follow the instructions from step 3 to step 9 in "Removing the Palm-Rest Assembly" on page 31.
    • 4 Use a plastic scribe and gently pry the coin-cell out of the battery socket on the system board.
    • 5 Lift the coin-cell battery out of the battery socket.
  • Replacing the Coin-Cell Battery
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 With the positive side up, snap the coin-cell battery into the battery socket on the system board.
    • 3 Follow the instructions from step 2 to step 7 in "Replacing the Palm-Rest Assembly" on page 34.
    • 4 Replace the battery (see "Replacing the Battery" on page 16).
    • 14
• System Board
  • Removing the System Board
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Press and eject any installed cards from the 8-in-1 media card reader.
    • 3 Remove the battery (see "Removing the Battery" on page 15).
    • 4 Remove the module cover (see "Removing the Module Cover" on page 17).
    • 5 Follow the instructions from step 4 to step 5 in "Removing the Optical Drive" on page 23.
    • 6 Remove the memory module(s) (see "Removing the Memory Module(s)" on page 19).
    • 7 Follow the instructions from step 3 to step 9 in "Removing the Palm-Rest Assembly" on page 31.
    • 8 Remove the display assembly (see "Removing the Display Assembly" on page 41).
    • 9 Remove the hinge cover (see "Removing the Hinge Cover" on page 53).
    • 10 Disconnect the speaker cable from the connector on the system board.
    • 11 Remove the five screws that secure the system board to the computer base.
    • 12 Lift the system board assembly to disconnect the connector on the system board from the connector on the I/O board.
    • 13 Turn the system board assembly over.
    • 14 Follow the instructions from step 3 to step 5 in "Removing the Hard Drive" on page 71.
    • 15 Remove the thermal cooling assembly (see "Removing the Thermal-Cooling Assembly" on page 75).
    • 16 Remove the processor module (see "Removing the Processor Module" on page 79).
  • Replacing the System Board
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Replace the processor module (see "Replacing the Processor Module" on page 80).
    • 3 Replace the thermal cooling assembly (see "Replacing the Thermal-Cooling Assembly" on page 76).
    • 4 Follow the instructions from step 5 to step 7 in "Replacing the Hard Drive" on page 73.
    • 5 Turn the system board assembly over.
    • 6 Slide the connectors on the system board into the slots on the computer base.
    • 7 Gently press the system board to connect the connector on the system board to the connector on the I/O board.
    • 8 Replace the five screws that secure the system board to the computer base.
    • 9 Connect the speaker cable, to the connector on the system board.
    • 10 Replace the hinge cover (see "Replacing the Hinge Cover" on page 55).
    • 11 Replace the display assembly (see "Replacing the Display Assembly" on page 43).
    • 12 Follow the instructions from step 2 to step 7 in "Replacing the Palm-Rest Assembly" on page 34.
    • 13 Replace the memory module (see "Replacing the Memory Module(s)" on page 20).
    • 14 Replace the module cover (see "Replacing the Module Cover" on page 18).
    • 15 Replace the battery (see "Replacing the Battery" on page 16).
    • 16 Replace any cards or blanks removed from the 8-in-1 media card reader.
    • 17 Turn on the computer.
    • 18 Enter the service tag (see "Entering the Service Tag in the BIOS" on page 68).
  • Entering the Service Tag in the BIOS
    • 1 Ensure that the AC adapter is plugged in and that the main battery is installed properly.
    • 2 Turn on the computer.
    • 3 Press <F2> during POST to enter the system setup program.
    • 4 Navigate to the security tab and enter the service tag in the Set Service Tag field.
    • 15
• Speakers
  • Removing the Speakers
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Follow the instructions from step 5 to step 14 in "Removing the System Board" on page 65.
    • 3 Make a note of the speakers cable routing and lift the speakers along with the cable off the computer base.
  • Replacing the Speakers
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Place the speakers on the computer base and route the speaker cable through the routing guides.
    • 3 Follow the instructions from step 2 to step 17 in "Replacing the System Board" on page 67.
    • 16
• Hard Drive
  • Removing the Hard Drive
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Follow the instructions from step 2 to step 13 in "Removing the System Board" on page 65.
    • 3 Remove the two screws that secure the hard-drive assembly to the system board.
    • 4 Slide the hard-drive assembly to disconnect it from the system-board connector.
    • 5 Lift the hard-drive assembly off the system board.
    • 6 Remove the four screws that secure the hard drive to the hard-drive bracket.
    • 7 Lift the hard drive away from the hard-drive bracket.
  • Replacing the Hard Drive
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Remove the new hard drive from its packaging.
    • 3 Place the hard drive in the hard-drive bracket.
    • 4 Replace the four screws that secure the hard drive to the hard-drive bracket.
    • 5 Place the hard-drive assembly on the system board.
    • 6 Slide the hard-drive assembly to connect it to the system-board connector.
    • 7 Replace the two screws that secure the hard-drive assembly to the system-board.
    • 8 Follow the instructions from step 6 to step 16 in "Replacing the System Board" on page 67.
    • 17
• Thermal-Cooling Assembly
  • Removing the Thermal-Cooling Assembly
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Remove the battery (see "Removing the Battery" on page 15).
    • 3 Follow the instructions from step 2 to step 13 in "Removing the System Board" on page 65.
    • 4 Gently peel the tape that secures the fan cable to the system board.
    • 5 Disconnect the fan cable from the connector on the system board.
    • 6 In sequential order (indicated on the thermal-cooling assembly), loosen the five captive screws that secure the thermal-cooling assembly to the system board.
    • 7 Lift the thermal-cooling assembly off the system board.
  • Replacing the Thermal-Cooling Assembly
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Align the screw holes on the thermal-cooling assembly with the screw holes on the system board.
    • 3 Tighten the five screws that secure the thermal-cooling assembly to the system board.
    • 4 Connect the fan cable to the connector on the system board.
    • 5 Adhere the tape that secures the fan cable to the system board
    • 6 Follow the instructions from step 4 to step 13 in "Replacing the System Board" on page 67.
    • 7 Replace the battery (see "Replacing the Battery" on page 16).
    • 18
• Processor Module
  • Removing the Processor Module
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Follow the instructions from step 2 to step 15 in "Removing the System Board" on page 65.
    • 3 To loosen the ZIF socket, use a small, flat-blade screwdriver and rotate the ZIF-socket cam screw counterclockwise until it comes to the cam stop.
    • 4 Lift the processor module from the ZIF socket.
  • Replacing the Processor Module
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Align the pin-1 corner of the processor module with the pin-1 corner of the ZIF socket, then insert the processor module.
    • 3 Tighten the ZIF socket by turning the cam screw clockwise to secure the processor module to the system board.
    • 4 Follow the instructions from step 3 to step 16 in "Replacing the System Board" on page 67.
  • I/O Board
    • Removing the I/O Board
    • Replacing the I/O Board
      • 20
• VGA/Power Board
  • Removing the VGA/Power Board
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Remove the display assembly (see "Removing the Display Assembly" on page 41).
    • 3 Follow the instructions from step 2 to step 12 in "Removing the System Board" on page 65.
    • 4 Remove the hinge cover (see "Removing the Hinge Cover" on page 53).
    • 5 Carefully ease the connectors on the VGA/Power board out of the slots in the base cover, and lift the VGA/Power Board off the base cover.
  • Replacing the VGA/Power Board
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Align the connectors on the VGA/Power board with the slots on the base cover and place it on the base cover.
    • 3 Replace the hinge cover (see "Replacing the Hinge Cover" on page 55).
    • 4 Follow the instructions from step 6 to step 17 in "Replacing the System Board" on page 67.
    • 5 Replace the display assembly (see "Replacing the Display Assembly" on page 43).
    • 21
• Flashing the BIOS
  • 1 Turn on the computer.
  • 2 Go to support.dell.com/support/downloads.
  • 3 Locate the BIOS update file for your computer:
    • a Click Enter a Tag.
    • b Enter your computer’s Service Tag in the Enter a service tag: field, click Go, and proceed to step 4.
    • a Click Select Model.
    • b Select the type of product in the Select Your Product Family list.
    • c Select the product brand in the Select Your Product Line list.
    • d Select the product model number in the Select Your Product Model list.
    • e Click Confirm.
  • 4 A list of results appear on the screen. Click BIOS.
  • 5 Click Download Now to download the latest BIOS file. The File Download window appears.
  • 6 Click Save to save the file on your desktop. The file downloads to your desktop.
  • 7 Click Close if the Download Complete window appears. The file icon appears on your desktop and is titled the same as the downloaded BIOS update file.
  • 8 Double-click the file icon on the desktop and follow the instructions on the screen.