Document Outline

• Dell™ Inspiron™ N4110 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 lock latch until it clicks into place.
    • 4 Slide the battery release latch to the unlock position.
    • 5 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.
  • Module Cover
    • Removing the Module Cover
    • Replacing the Module Cover
  • Optical Drive
    • Removing the Optical Drive
    • Replacing the Optical Drive
  • Memory Module(s)
    • Removing the Memory Module(s)
    • Replacing the Memory Module(s)
      • 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 palm rest.
    • 5 Pry and lift the keyboard to disengage it from the tabs on the palm rest.
    • 6 Ease the keyboard up until it clears off the palm rest.
    • 7 Carefully turn the keyboard over and place it on the palm-rest assembly.
    • 8 Lift the connector latch that secures the keyboard cable to the connector on the system board and disconnect the keyboard cable.
    • 9 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. Press down on the connector latch to secure the keyboard cable to the connector on the system board.
    • 3 Slide the tabs on the keyboard into the slots on the palm-rest assembly.
    • 4 Gently press around the edges of the keyboard and slide it upwards to secure the keyboard under the tabs on the palm-rest assembly.
    • 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 module cover (see "Removing the Module Cover" on page 17).
    • 4 Follow the instructions from step 4 to step 5 in "Removing the Optical Drive" on page 19.
    • 5 Remove the ten screws from the computer base.
    • 6 Remove the keyboard (see "Removing the Keyboard" on page 27).
    • 7 Remove the five screws on the palm-rest assembly.
    • 8 Lift the connector latches and pull the pull-tabs to disconnect the power-button cable, touch-pad cable, and hot-key board cable from the connectors on the system board.
    • 9 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.
    • 10 Lift the palm-rest assembly off the computer base.
    • 11 Turn the palm-rest assembly over.
    • 12 Remove the hot-key board (see "Removing the Hot-Key Board" on page 37).
    • 13 Remove the power button board (see "Removing the Power Button Board" on page 41).
  • Replacing the Palm-Rest Assembly
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Replace the power button board (see "Replacing the Power Button Board" on page 42).
    • 3 Replace the hot-key board (see "Replacing the Hot-Key Board" on page 38).
    • 4 Align the tabs on the palm-rest assembly with the slots on the computer base and gently snap the palm-rest assembly in place.
    • 5 Slide the power-button cable, touch-pad cable, and hot-key board cable into the connectors on the system board and press down on the connector latches to secure them.
    • 6 Replace the five screws on the palm-rest assembly.
    • 7 Replace the keyboard (see "Replacing the Keyboard" on page 29).
    • 8 Turn the computer over and replace the ten screws at the bottom of the computer.
    • 9 Follow the instructions from step 4 to step 5 in "Replacing the Optical Drive" on page 21.
    • 10 Replace the module cover (see "Replacing the Module Cover" on page 18).
    • 11 Replace the battery (see "Replacing the Battery" on page 16).
  • Hot-Key Board
    • Removing the Hot-Key Board
    • Replacing the Hot-Key Board
  • Power Button Board
    • Removing the Power Button Board
    • Replacing the Power Button Board
      • 11
• 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 Remove the module cover (see "Removing the Module Cover" on page 17).
    • 4 Follow the instructions from step 4 to step 5 in "Removing the Optical Drive" on page 19.
    • 5 Remove the keyboard (see "Removing the Keyboard" on page 27).
    • 6 Remove the palm-rest assembly (see "Removing the Palm-Rest Assembly" on page 31).
    • 7 Disconnect the two antenna cables from the Mini-Card(s).
    • 8 Remove the screw that secures the Mini-Card(s) to the system board.
    • 9 Lift the Mini-Card(s) off the computer base.
    • 10 If you are removing the WLAN Mini-Card, detach it from the WLAN Mini-Card bracket.
  • 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 If you are replacing the WLAN Mini-Card, attach it to the WLAN Mini-Card bracket.
    • 4 Insert the Mini-Card connector at a 45-degree angle into the system-board connector.
    • 5 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.
    • 6 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.
    • 7 Replace the palm-rest assembly (see "Replacing the Palm-Rest Assembly" on page 35).
    • 8 Replace the keyboard (see "Replacing the Keyboard" on page 29).
    • 9 Follow the instructions from step 4 to step 5 in "Replacing the Optical Drive" on page 21.
    • 10 Replace the module cover (see "Replacing the Module Cover" on page 18).
    • 11 Replace the battery (see "Replacing the Battery" on page 16).
    • 12 Install the drivers and utilities for your computer, as required.
    • 12
• Thermal Fan
  • Removing the Thermal Fan
    • 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 keyboard (see "Removing the Keyboard" on page 27).
    • 4 Remove the palm-rest assembly (see "Removing the Palm-Rest Assembly" on page 31).
    • 5 Disconnect the display cable from the connector on the system board.
    • 6 Disconnect the thermal fan cable from the connector on the system board.
    • 7 Remove the screw that secures the thermal fan to the computer base.
    • 8 Lift the thermal fan off the system board.
  • Replacing the Thermal Fan
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Place the thermal fan on the computer base and replace the screw.
    • 3 Connect the thermal fan cable to the connector on the system board.
    • 4 Connect the display cable to the connector on the system board.
    • 5 Replace the palm-rest assembly (see "Replacing the Palm-Rest Assembly" on page 35).
    • 6 Replace the keyboard (see "Replacing the Keyboard" on page 29).
    • 7 Replace the battery (see "Replacing the Battery" on page 16).
    • 13
• 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 module cover (see "Removing the Module Cover" on page 17).
      • 4 Follow the instructions from step 4 to step 5 in "Removing the Optical Drive" on page 19.
      • 5 Remove the two screws from the computer base.
      • 6 Remove the keyboard (see "Removing the Keyboard" on page 27).
      • 7 Remove the palm-rest assembly (see "Removing the Palm-Rest Assembly" on page 31).
      • 8 Loosen the display cable grounding screw.
      • 9 Disconnect the display cable from the connector on the system board.
      • 10 Disconnect the Mini-Card antenna cables from the connectors on the Mini-Card(s) (see "Removing the Mini-Card(s)" on page 45).
      • 11 Remove the four screws that secure the display assembly to the computer base.
      • 12 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 display cable and Mini-Card antenna cables through the routing guides.
      • 4 Connect the display cable to the connector on the system board.
      • 5 Connect the Mini-Card antenna cables to the Mini-Cards(s) (see "Replacing the Mini-Card(s)" on page 47).
      • 6 Tighten the display cable grounding screw.
      • 7 Replace the palm-rest assembly (see "Replacing the Palm-Rest Assembly" on page 35).
      • 8 Replace the keyboard (see "Replacing the Keyboard" on page 29).
      • 9 Replace the two screws at the bottom of the computer.
      • 10 Follow the instructions from step 4 to step 5 in "Replacing the Optical Drive" on page 21.
      • 11 Replace the module cover (see "Replacing the Module Cover" on page 18).
      • 12 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 53).
      • 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 56).
      • 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 53).
      • 3 Remove the display bezel (see "Removing the Display Bezel" on page 57).
      • 4 Remove the six screws that secure the display panel to the display cover.
      • 5 Note the routing of the display cable and Mini-Card(s) cables and remove the cables from the routing guides on the display cover.
      • 6 Lift the display panel off the display cover.
    • Replacing the Display Panel
      • 1 Follow the instructions in "Before You Begin" on page 9.
      • 2 Align the screw holes on the display panel with the screw holes on the display cover and replace the six screws.
      • 3 Route the display cable through the routing guides on the display cover.
      • 4 Replace the display bezel (see "Replacing the Display Bezel" on page 58).
      • 5 Replace the display assembly (see "Replacing the Display Assembly" on page 56).
  • 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 53).
      • 3 Remove the display bezel (see "Removing the Display Bezel" on page 57).
      • 4 Remove the display panel (see "Removing the Display Panel" on page 58).
      • 5 Turn the display panel over and place it on a clean surface.
      • 6 Lift the tape that secures the display cable to the connector on the display panel 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 connector on the display panel and secure it with the tape.
      • 3 Turn the display panel over and place it on the display cover.
      • 4 Replace the display panel (see "Replacing the Display Panel" on page 59).
      • 5 Replace the display bezel (see "Replacing the Display Bezel" on page 58).
      • 6 Replace the display assembly (see "Replacing the Display Assembly" on page 56).
  • Hinge Caps
    • Removing the Hinge Caps
      • 1 Follow the instructions in "Before You Begin" on page 9.
      • 2 Remove the display assembly (see "Removing the Display Assembly" on page 53).
      • 3 Remove the display bezel (see "Removing the Display Bezel" on page 57).
      • 4 Remove the six screws that secure the display panel to the display cover.
      • 5 Turn the display panel over and keep it on a clean surface.
      • 6 Press both sides of each hinge cap and lift the hinge caps out of the display hinges.
    • Replacing the Hinge Caps
      • 1 Follow the instructions in "Before You Begin" on page 9.
      • 2 Align the tabs on the hinge caps with the slots on the display panel brackets and snap them into place.
      • 3 Turn the display panel over and place it on the display cover.
      • 4 Replace the six screws that secure the display panel to the display cover.
      • 5 Replace the display bezel (see "Replacing the Display Bezel" on page 58).
      • 6 Replace the display assembly (see "Replacing the Display Assembly" on page 56).
  • 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 53).
      • 3 Remove the display bezel (see "Removing the Display Bezel" on page 57).
      • 4 Remove the hinge caps (see "Removing the Hinge Caps" on page 61).
      • 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 vbbrackets with the screw holes on the display panel.
      • 3 Replace the four screws (two on each side) that secure the display-panel brackets to the display panel.
      • 4 Replace the hinge caps (see "Replacing the Hinge Caps" on page 62).
      • 5 Replace the display bezel (see "Replacing the Display Bezel" on page 58).
      • 6 Replace the display assembly (see "Replacing the Display Assembly" on page 56).
  • Camera Module
    • Removing the Camera Module
    • Replacing the Camera Module
  • Hinge Cover
    • Removing the Hinge Cover
    • Replacing the Hinge Cover
  • VGA Connector Board
    • Removing the VGA Connector Board
    • Replacing the VGA Connector Board
      • 17
• System Board
  • Removing the System Board
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Press and eject any installed cards or blanks 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 Remove the memory module(s) (see "Removing the Memory Module(s)" on page 23).
    • 6 Follow the instructions from step 4 to step 5 in "Removing the Optical Drive" on page 19.
    • 7 Disconnect the AC-adapter connector cable from the connector on the system board.
    • 8 Remove the keyboard (see "Removing the Keyboard" on page 27).
    • 9 Remove the palm-rest assembly (see "Removing the Palm-Rest Assembly" on page 31).
    • 10 Remove the thermal fan (see "Removing the Thermal Fan" on page 49).
    • 11 Loosen the display cable grounding screw.
    • 12 Disconnect the display cable and speakers cable from the connectors on the system board.
    • 13 Remove the five screws that secure the system board to the computer base.
    • 14 Lift the system board assembly to disconnect the connector on the system board from the connector on the I/O board.
    • 15 Turn the system board over.
    • 16 Remove the coin-cell battery (see "Removing the Coin-Cell Battery" on page 87).
    • 17 Follow the instructions from step 3 to step 5 in "Removing the Hard-Drive Assembly" on page 95.
    • 18 Remove the thermal cooling assembly (see "Removing the Thermal Cooling Assembly" on page 89.
    • 19 Remove the processor module (see "Removing the Processor Module" on page 91).
  • 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 92).
    • 3 Replace the thermal cooling assembly (see "Replacing the Thermal Cooling Assembly" on page 90.
    • 4 Follow the instructions from step 5 to step 7 in "Replacing the Hard-Drive Assembly" on page 97.
    • 5 Replace the coin-cell battery (see "Replacing the Coin-Cell Battery" on page 88).
    • 6 Turn the system board over.
    • 7 Align the connectors on the system board with the slots on the computer base and place it in position.
    • 8 Gently press the system board to connect the connector on the system board to the connector on the I/O board.
    • 9 Replace the five screws that secure the system board to the computer base.
    • 10 Connect the display cable and speakers cable to the connectors on the system board.
    • 11 Tighten the display cable grounding screw.
    • 12 Replace the thermal fan (see "Replacing the Thermal Fan" on page 50).
    • 13 Replace the palm-rest assembly (see "Replacing the Palm-Rest Assembly" on page 35).
    • 14 Replace the keyboard (see "Replacing the Keyboard" on page 29).
    • 15 Connect the AC-adapter connector cable to the connector on the system board.
    • 16 Follow the instructions from step 4 to step 5 in "Replacing the Optical Drive" on page 21.
    • 17 Replace the memory module(s) (see "Replacing the Memory Module(s)" on page 24).
    • 18 Replace the module cover (see "Replacing the Module Cover" on page 18).
    • 19 Replace the battery (see "Replacing the Battery" on page 16).
    • 20 Replace any cards or blanks removed from the 8-in-1 media card reader.
    • 21 Turn on the computer.
    • 22 Enter the service tag (see "Entering the Service Tag in the BIOS" on page 82).
  • 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> as soon as you see the Dell logo to enter the system setup program.
    • 4 Navigate to the security tab and enter the service tag in the Set Service Tag field.
    • 18
• Speakers
  • Removing the Speakers
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Follow the instructions from step 2 to step 14 in "Removing the System Board" on page 77.
    • 3 Note the speakers cable routing and lift the left and right speakers along with the its cable from 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 speakers cable through the routing guides.
    • 3 Follow the instructions from step 7 to step 20 in "Replacing the System Board" on page 81.
    • 19
• Coin-Cell Battery
  • Removing the Coin-Cell Battery
    • 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 77.
    • 3 Use a plastic scribe and gently pry the coin-cell out of the battery socket on the system board.
    • 4 Lift the coin-cell battery out of the system-board socket.
  • Replacing the Coin-Cell Battery
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Hold the coin-cell battery with the positive side up.
    • 3 Slide the coin-cell battery into the slot and gently press until it snaps in place.
    • 4 Follow the instructions from step 6 to step 20 in "Replacing the System Board" on page 81.
  • Thermal Cooling Assembly
    • Removing the Thermal Cooling Assembly
    • Replacing the Thermal Cooling Assembly
      • 21
• 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 77.
    • 3 Remove the thermal cooling assembly (see "Removing the Thermal Cooling Assembly" on page 89).
    • 4 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.
    • 5 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 Replace the thermal cooling assembly (see "Replacing the Thermal Cooling Assembly" on page 90).
    • 5 Follow the instructions from step 6 to step 20 in "Replacing the System Board" on page 81.
    • 22
• Hard-Drive Assembly
  • Removing the Hard-Drive Assembly
    • 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 77.
    • 3 Remove the screw that secures the hard-drive assembly to the system board.
    • 4 Slide the hard-drive assembly in the direction shown in the illustration to disconnect it from the connector on the system board.
    • 5 Lift the hard-drive assembly off the system board.
    • 6 Remove the four screws that secure the hard-drive bracket to the hard drive.
    • 7 Lift the hard drive away from the hard-drive bracket.
  • Replacing the Hard-Drive Assembly
    • 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 bracket to the hard drive.
    • 5 Place the hard-drive assembly on the system board.
    • 6 Slide the hard-drive assembly to connect it to the connector on the system board.
    • 7 Replace the screw that secures the hard-drive assembly to the system board.
    • 8 Follow the instructions from step 6 to step 20 in "Replacing the System Board" on page 81.
  • I/O Board
    • Removing the I/O Board
    • Replacing the I/O Board
      • 24
• AC-Adapter Connector
  • Removing the AC-Adapter Connector
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Follow the instructions from step 2 to step 14 in "Removing the System Board" on page 77.
    • 3 Remove the display assembly (see "Removing the Display Assembly" on page 53).
    • 4 Remove the hinge cover (see "Removing the Hinge Cover" on page 69).
    • 5 Remove the VGA connector board (see "Removing the VGA Connector Board" on page 73).
    • 6 Note the AC-adapter connector cable routing and remove the cable from the routing guides.
    • 7 Remove the screw that secures the AC-adapter connector to the computer base.
    • 8 Lift the AC-adapter connector off the computer base.
  • Replacing the AC-Adapter Connector
    • 1 Follow the instructions in "Before You Begin" on page 9.
    • 2 Place the AC-adapter connector on the computer base.
    • 3 Replace the screw that secures the AC-adapter connector to the computer base.
    • 4 Route the AC-adapter connector cable through the routing guides.
    • 5 Replace the VGA connector board (see "Replacing the VGA Connector Board" on page 74).
    • 6 Replace the hinge cover (see "Replacing the Hinge Cover" on page 71).
    • 7 Replace the display assembly (see "Replacing the Display Assembly" on page 56).
    • 8 Follow the instructions from step 7 to step 20 in "Replacing the System Board" on page 81.
    • 25
• 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.