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Dell Inspiron 11 3148 Owner's Manual
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Dell Inspiron 11 3148 Owner's Manual

Dell Inspiron 11 3148 Owner's Manual

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Inspiron 11
3000 Series
Owner's Manual
Computer Model: Inspiron 3148
Regulatory Model: P20T
Regulatory Type: P20T002

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Summary of Contents for Dell Inspiron 11 3148

  • Page 1 Inspiron 11 3000 Series Owner's Manual Computer Model: Inspiron 3148 Regulatory Model: P20T Regulatory Type: P20T002...
  • Page 2 WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Copyright © 2014 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws. Dell and the Dell logo are trademarks ™...

  • Page 3: Table Of Contents

    Contents Before Working Inside Your Computer........9 ....................9 Before You Begin ..................... 9 Safety Instructions ..................10 Recommended Tools After Working Inside Your Computer........11 Removing the Base Cover............12 ......................12 Procedure Replacing the Base Cover............13 ......................13 Procedure Removing the Battery...............
  • Page 4 Removing the Hard Drive............21 ..................... 21 Prerequisites ......................21 Procedure Replacing the Hard Drive............24 ......................24 Procedure ....................24 Post-requisites Removing the Coin-Cell Battery..........25 .....................25 Prerequisites ......................25 Procedure Replacing the Coin-Cell Battery..........27 ......................27 Procedure ....................27 Post-requisites Removing the Wireless Card........... 28 ....................
  • Page 5 Removing the Speakers............34 .....................34 Prerequisites ......................34 Procedure Replacing the Speakers............37 ......................37 Procedure ....................37 Post-requisites Removing the Touchpad............38 .....................38 Prerequisites ......................38 Procedure Replacing the Touchpad............41 ......................41 Procedure ....................41 Post-requisites Removing the Processor Fan and Heat-Sink Assembly..42 .....................42 Prerequisites ......................
  • Page 6 Removing the I/O Board............48 ....................48 Prerequisites ......................48 Procedure Replacing the I/O Board............50 ......................50 Procedure ....................50 Post-requisites Removing the System Board........... 51 ..................... 51 Prerequisites ......................51 Procedure Replacing the System Board............55 ......................55 Procedure ....................55 Post-requisites ..............
  • Page 7 Removing the Display Back-Cover and Antenna Assembly..................64 ....................64 Prerequisites ......................64 Procedure Replacing the Display Back-Cover and Antenna Assembly..................66 ......................66 Procedure ....................66 Post-requisites Removing the Display Hinges..........67 .....................67 Prerequisites ......................67 Procedure Replacing the Display Hinges..........69 ......................
  • Page 8 Removing the Display Cable........... 76 .....................76 Prerequisites ......................76 Procedure Replacing the Display Cable............79 ......................79 Procedure ....................79 Post-requisites Flashing the BIOS..............80 Getting Help and Contacting Dell..........81 ..................81 Self-Help Resources ....................81 Contacting Dell...

  • Page 9: Before Working Inside Your Computer

    Use the following safety guidelines to protect your computer from potential damage and ensure your personal safety. WARNING: Before working inside your computer, read the safety information that shipped with your computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/ regulatory_compliance.

  • Page 10: Recommended Tools

    WARNING: Disconnect all power sources before opening the computer cover or panels. After you finish working inside the computer, replace all covers, panels, and screws before connecting to the power source. CAUTION: To avoid damaging the computer, make sure that the work surface is flat and clean.

  • Page 11: After Working Inside Your Computer

    After Working Inside Your Computer CAUTION: Leaving stray or loose screws inside your computer may severely damage your computer. Replace all screws and make sure that no stray screws remain inside your computer. Connect any external devices, peripherals, and cables you removed before working on your computer.

  • Page 12: Removing The Base Cover

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Close the display and turn the computer over. Remove the screws that secure the base cover to the computer base.

  • Page 13: Replacing The Base Cover

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Slide the tabs on the base cover into the slots on the computer base and snap the base cover into place.

  • Page 14: Removing The Battery

    Before Working Inside Your Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Prerequisites Remove the base cover. Procedure Remove the screws that secure the battery to the palmrest and keyboard assembly.
  • Page 15 Press and hold the power button for 5 seconds, to ground the system board.

  • Page 16: Replacing The Battery

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Align the screw holes on the battery with the screw holes on the palmrest and keyboard assembly and place the battery on the palmrest and keyboard assembly.

  • Page 17: Removing The Memory Module

    Before Working Inside Your Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 18 Remove the memory module from the memory-module slot. memory module securing clips (2) memory-module slot...

  • Page 19: Replacing The Memory Module

    Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Align the notch on the memory module with the tab on the memory- module slot.

  • Page 20: Post-Requisites

    Slide the memory module firmly into the slot at an angle and press the memory module down until it clicks into place. NOTE: If you do not hear the click, remove the memory module and reinstall it. memory module securing clips (2) memory-module slot notch Post-requisites...

  • Page 21: Removing The Hard Drive

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. CAUTION: Hard drives are fragile. Exercise care when handling the hard drive. CAUTION: To avoid data loss, do not remove the hard drive while the computer is in Sleep or On state.
  • Page 22 Remove the screws that secure the hard-drive assembly to the palmrest and keyboard assembly. Using the pull tab, disconnect the hard-drive cable from the system board. Lift the hard-drive assembly along with its cable off the palmrest and keyboard assembly. screws (2) hard-drive assembly hard-drive cable...
  • Page 23 Lift the hard-drive bracket from the hard drive. screws (4) hard drive hard-drive bracket interposer...

  • Page 24: Replacing The Hard Drive

    Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. CAUTION: Hard drives are fragile. Exercise care when handling the hard drive. Procedure Align the screw holes on the hard drive with the screw holes on the hard- drive bracket.

  • Page 25: Removing The Coin-Cell Battery

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. CAUTION: Removing the coin-cell battery resets the BIOS settings to default. It is recommended that you note the BIOS settings before removing the coin-cell battery.
  • Page 26 plastic scribe coin-cell battery battery socket...

  • Page 27: Replacing The Coin-Cell Battery

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure With the positive-side facing up, snap the coin-cell battery into the battery socket on the system board.

  • Page 28: Removing The Wireless Card

    Before Working Inside Your Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 29 Slide the wireless card from the wireless-card slot on the system board. antenna cables (2) wireless card wireless-card slot screw...

  • Page 30: Replacing The Wireless Card

    Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure CAUTION: To avoid damage to the wireless card, do not place any cables under it.

  • Page 31: Removing The Power And Volume-Buttons Board

    Before Working Inside Your Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 32 Lift the power and volume-buttons board along with its cable, off the palmrest and keyboard assembly. adhesive tapes (2) power and volume- buttons board cable power and volume-buttons board...

  • Page 33: Replacing The Power And Volume-Buttons Board

    Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Place the power and volume-buttons board into the slot on the palmrest and keyboard assembly.

  • Page 34: Removing The Speakers

    Before Working Inside Your Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 35 Peel off the touchpad cable from the Mylar. speakers (2) touchpad cable connector latch Peel off the Mylar from the palmrest and keyboard assembly to access the speaker cable. speakers (2) Mylar Disconnect the speaker cable from the system board.
  • Page 36 Peel off the foil tapes that secure the speaker cable to the palmrest and keyboard assembly. Remove the speaker cable from the routing guides on the palmrest and keyboard assembly. Peel off the adhesive tape that secures the speaker to the palmrest and keyboard assembly.

  • Page 37: Replacing The Speakers

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Using the alignment posts on the palmrest and keyboard assembly, place the speakers on the palmrest and keyboard assembly.

  • Page 38: Removing The Touchpad

    Before Working Inside Your Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 39 Lift the connector latch and disconnect the touchpad cable from the touchpad. foil tape touchpad connector latch touchpad cable Remove the screws that secure the touchpad to the palmrest and keyboard assembly. Raise the palmrest and keyboard assembly to release the touchpad from the slots on the palmrest and keyboard assembly.
  • Page 40 Slide and remove the touchpad away from the computer. screws (2) slots (2) palmrest and keyboard touchpad assembly...

  • Page 41: Replacing The Touchpad

    Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Slide the tabs on the touchpad into the slots on the palmrest and keyboard assembly.

  • Page 42: Removing The Processor Fan And Heat-Sink Assembly

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. WARNING: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you touch it.
  • Page 43 Lift the processor fan and heat-sink assembly off the system board. processor fan and heat-sink captive screws (3) assembly system board fan cable...

  • Page 44: Replacing The Processor Fan And Heat-Sink Assembly

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure In sequential order, (indicated on the heat sink), tighten the captive screws that secure the processor fan and heat-sink assembly to the system board.

  • Page 45: Removing The Power-Adapter Port

    Before Working Inside Your Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 46 Lift the power-adapter port with its cable, off the palmrest and keyboard assembly. system board screw power-adapter port power-adapter port cable...

  • Page 47: Replacing The Power-Adapter Port

    Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Place the power-adapter port into the slot on the palmrest and keyboard assembly.

  • Page 48: Removing The I/O Board

    Before Working Inside Your Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 49 Lift the I/O board off the palmrest and keyboard assembly. I/O board screw power and volume-buttons I/O-board cable board cable...

  • Page 50: Replacing The I/O Board

    Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Using the alignment posts, place the I/O board on the palmrest and keyboard assembly.

  • Page 51: Removing The System Board

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program after you replace the system board.
  • Page 52 Lift the connector latch and disconnect the Windows-button board cable from the system board. screws (2) display-cable bracket display cable windows-button board cable adhesive tape Using the pull tab disconnect the I/O-board cable and the hard-drive cable from the system board. Release the connector latches and disconnect the keyboard cable from the system board.
  • Page 53 Disconnect the speaker cable and the power-adapter port cable from the system board. power-adapter port cable I/O-board cable keyboard cable hard-drive cable touchpad cable speaker cable Remove the screw that secures the system board to the palmrest and keyboard assembly.
  • Page 54 10 Lift the system board off the palmrest and keyboard assembly. screw system board palmrest and keyboard assembly...

  • Page 55: Replacing The System Board

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program after you replace the system board.

  • Page 56: Entering The Service Tag In The Bios

    Entering the Service Tag in the BIOS Turn on the computer. Press F2 when the DELL logo is displayed to enter the BIOS setup program. Navigate to the Main tab and enter the Service Tag in the Service Tag...

  • Page 57: Removing The Display Assembly

    Before Working Inside Your Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 58 Lift the connector latch and disconnect the Windows button-board cable. wireless card antenna cables (2) screws (2) display-cable bracket display cable windows-button board cable adhesive tape system board Turn the computer over and open the display as far as possible. CAUTION: Place the computer on a soft and clean surface to avoid scratching the display.
  • Page 59 10 Lift the display assembly off the palmrest and keyboard assembly. display assembly screws (2) display hinges (2)

  • Page 60: Replacing The Display Assembly

    Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure CAUTION: Place the computer on a soft and clean surface to avoid scratching the display.

  • Page 61: Removing The Palmrest And Keyboard Assembly

    Before Working Inside Your Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 62 palmrest and keyboard assembly 2 screw Turn the palmrest and keyboard assembly over and keep it aside. palmrest and keyboard assembly...

  • Page 63: Replacing The Palmrest And Keyboard Assembly

    Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Place the palmrest and keyboard assembly on a flat surface with the keyboard facing down.

  • Page 64: Removing The Display Back-Cover And Antenna Assembly

    Before Working Inside Your Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 65 display-panel assembly plastic scribe display back-cover and antenna assembly...

  • Page 66: Replacing The Display Back-Cover And Antenna Assembly

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Align the display-panel assembly with the display back-cover and antenna assembly and gently snap the display back-cover and antenna assembly into place.

  • Page 67: Removing The Display Hinges

    Before Working Inside Your Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 68 Lift the display hinges off the display back-cover and antenna assembly. screws (6) display back-cover and antenna assembly hinge covers (2) antenna cables (2) hinges (2)

  • Page 69: Replacing The Display Hinges

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Align the screw holes on the display hinges with the screw holes on the display back-cover and antenna assembly.

  • Page 70: Removing The Camera

    Before Working Inside Your Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 71 Turn the camera over and disconnect the camera cable from the camera module. camera camera cable plastic scribe...

  • Page 72: Replacing The Camera

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Connect the camera cable to the camera module. Using the alignment post place the camera module on the display bezel and snap it into place.

  • Page 73: Removing The Windows-Button Board

    Before Working Inside Your Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 74 Lift the Windows-button board off the display bezel. adhesive tape Windows-button board cable Windows-button board touch-board cable screw...

  • Page 75: Replacing The Windows-Button Board

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Align the screw hole on the Windows-button board with the screw hole on the display bezel.

  • Page 76: Removing The Display Cable

    Before Working Inside Your Computer. After working inside your computer, follow the instructions in After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 77 Lift the connector latch and disconnect the display cable from the touch board. adhesive tape connector latch for Windows-button board cable Windows-button board connector latch for display cable cable display panel display cable Note the display cable routing and remove the display cable from the routing guides on the display bezel.
  • Page 78 Lift the display cable off the display bezel. display cable routing guides...

  • Page 79: Replacing The Display Cable

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Route the display cable through the routing guides on the display bezel. Slide the display cable into the connector on the touch board and press down the latch to secure the cable.

  • Page 80: Flashing The Bios

    You may need to flash (update) the BIOS when an update is available or when you replace the system board. To flash the BIOS: Turn on the computer. Go to dell.com/support. If you have your computer's Service Tag, type your computer's Service Tag and click Submit.

  • Page 81: Getting Help And Contacting Dell

    Getting Help and Contacting Dell Self-Help Resources You can get information and help on Dell products and services using these online self-help resources: Self-Help Information Self-Help Options Windows 8.1 — Open the Search Accessing Windows Help charm, type Help and Support in the search box and press Enter.
  • Page 82 NOTE: If you do not have an active internet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog.

This manual is also suitable for:

Inspiron 11 3000 seriesP20t

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