Dell Inspiron 14 3421 Owner's Manual

Dell Inspiron 14 3421 Manual

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  • Dell Inspiron 14 3421 | Owner's Manual - Page 1
    Inspiron 14/14R Owner's Manual Computer model: Inspiron 3421/5421 Regulatory model: P37G Regulatory type: P37G001
  • Dell Inspiron 14 3421 | Owner's Manual - Page 2
    of data if instructions are not followed. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2012 Dell Inc. Trademarks used in this text: Dell™, the DELL logo, and Inspiron™ are trademarks of Dell Inc.; Microsoft®, Windows®, and the Windows start button
  • Dell Inspiron 14 3421 | Owner's Manual - Page 3
    the Battery 13 Procedure 13 Removing the Optical Drive 14 Prerequisites 14 Procedure 14 Replacing the Optical Drive 16 Procedure 16 Postrequisites 16 Removing the Keyboard 17 Prerequisites 17 Procedure 17 Replacing the Keyboard 20 Procedure 20 Postrequisites 20 Removing the Base Cover
  • Dell Inspiron 14 3421 | Owner's Manual - Page 4
    Drive 25 Prerequisites 25 Procedure 25 Replacing the Hard Drive 27 Procedure 27 Postrequisites 27 Removing the Wireless Mini-Card 28 Prerequisites 28 Procedure 28 Replacing the Wireless Mini-Card 30 Procedure 30 Postrequisites 30 Removing the Palm-Rest 31 Prerequisites 31 Procedure 31
  • Dell Inspiron 14 3421 | Owner's Manual - Page 5
    Procedure 45 Postrequisites 45 Removing the System Board 46 Prerequisites 46 Procedure 47 Replacing the System Board 49 Procedure 49 Postrequisites 49 Entering the Service Tag in system setup 50 Removing the Thermal-Cooling Assembly . . . . . 51 Prerequisites 51 Procedure 51 Contents | 5
  • Dell Inspiron 14 3421 | Owner's Manual - Page 6
    Replacing the Thermal-Cooling Assembly . . . . . 52 Procedure 52 Postrequisites 52 Removing the Speakers 53 Prerequisites 53 Procedure 54 Replacing the Speakers 55 Procedure 55 Postrequisites 55 Removing the Display Assembly 56 Prerequisites 56 Procedure 57 Replacing the Display Assembly
  • Dell Inspiron 14 3421 | Owner's Manual - Page 7
    Removing the Display Panel 65 Prerequisites 65 Procedure 66 Replacing the Display Panel 67 Procedure 67 Postrequisites 67 Removing the Camera Module 68 Prerequisites 68 Procedure 69 Replacing the Camera Module 70 Procedure 70 Postrequisites 70 Flashing the BIOS 71 Contents | 7
  • Dell Inspiron 14 3421 | Owner's Manual - Page 8
    8 | Contents
  • Dell Inspiron 14 3421 | Owner's Manual - Page 9
    7: Click Start and click Shut down. Microsoft Windows shuts down and then the computer turns off. NOTE: If you are using a different operating system, see the documentation of your operating system for shut-down instructions. 3 Disconnect your computer and all attached devices from their electrical
  • Dell Inspiron 14 3421 | Owner's Manual - Page 10
    see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. WARNING: Disconnect all touching pins and contacts. CAUTION: Only a certified service technician is authorized to remove the computer cover and access any of the components inside the computer. See the safety instructions
  • Dell Inspiron 14 3421 | Owner's Manual - Page 11
    After Working Inside Your Computer After you complete the replacement procedures, ensure the following: • Replace all screws and ensure that no stray screws remain inside your computer. • Connect any external devices, cables, cards, and any other part(s) you removed before working on your computer.
  • Dell Inspiron 14 3421 | Owner's Manual - Page 12
    " on page 9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Close the display and turn the computer
  • Dell Inspiron 14 3421 | Owner's Manual - Page 13
    Begin" on page 9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure Align the tabs on the battery with
  • Dell Inspiron 14 3421 | Owner's Manual - Page 14
    page 9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See " drive bracket. 14 | Removing the Optical Drive
  • Dell Inspiron 14 3421 | Owner's Manual - Page 15
    4 Carefully pull the optical-drive bezel and remove it from the optical drive. 1 screw 3 optical drive 2 1 4 3 2 optical-drive bracket 4 optical-drive bezel Removing the Optical Drive | 15
  • Dell Inspiron 14 3421 | Owner's Manual - Page 16
    Begin" on page 9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Align the tabs on the optical-drive
  • Dell Inspiron 14 3421 | Owner's Manual - Page 17
    " on page 9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the
  • Dell Inspiron 14 3421 | Owner's Manual - Page 18
    2 Turn the computer over and open the display as far as possible. 3 Using a plastic scribe, pry the keyboard from the tabs on the palm-rest. 1 2 3 1 tabs (5) 3 keyboard 2 plastic scribe 18 | Removing the Keyboard
  • Dell Inspiron 14 3421 | Owner's Manual - Page 19
    the display to release the keyboard from the palm-rest and place the keyboard on the palm-rest. 5 Lift the connector latch and disconnect the keyboard cable from the keyboard-cable connector. 6 Lift the keyboard off the palm-rest. 1 2 1 keyboard 3 keyboard cable 4 3 2 palm-rest 4 connector latch
  • Dell Inspiron 14 3421 | Owner's Manual - Page 20
    your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Slide the keyboard cable into the keyboard-cable connector and press
  • Dell Inspiron 14 3421 | Owner's Manual - Page 21
    " on page 9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery
  • Dell Inspiron 14 3421 | Owner's Manual - Page 22
    Begin" on page 9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Slide the tabs on the base cover
  • Dell Inspiron 14 3421 | Owner's Manual - Page 23
    on page 9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the
  • Dell Inspiron 14 3421 | Owner's Manual - Page 24
    Begin" on page 9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Align the notch on the memory
  • Dell Inspiron 14 3421 | Owner's Manual - Page 25
    " on page 9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. CAUTION: To avoid data loss, do not remove the
  • Dell Inspiron 14 3421 | Owner's Manual - Page 26
    1 3 2 1 screw 3 hard-drive assembly 2 pull-tab 4 Remove the screws that secure the hard-drive bracket to the hard drive. 5 Using the pull-tab, lift the hard-drive bracket off the hard drive. 1 1 hard-drive bracket 3 hard drive 26 | Removing the Hard Drive 3 2 2 screws (2)
  • Dell Inspiron 14 3421 | Owner's Manual - Page 27
    Begin" on page 9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. CAUTION: Hard drives are extremely fragile. Exercise care
  • Dell Inspiron 14 3421 | Owner's Manual - Page 28
    instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell from the wireless mini-card. 2 Remove the screw that secures the wireless mini-card to the system board. 1 1 screw 3 wireless mini-card
  • Dell Inspiron 14 3421 | Owner's Manual - Page 29
    3 Slide and remove the wireless mini-card out of the mini-card connector. 1 wireless mini-card 2 1 2 mini-card connector Removing the Wireless Mini-Card | 29
  • Dell Inspiron 14 3421 | Owner's Manual - Page 30
    inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure CAUTION: To avoid damage to the wireless mini-card, ensure that no
  • Dell Inspiron 14 3421 | Owner's Manual - Page 31
    at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Remove the base cover. See "Removing the Base Cover" on page 21. 3 Follow the instructions from step 1 to step 3 in "Removing the Hard Drive" on page 25. 4 Remove the keyboard. See
  • Dell Inspiron 14 3421 | Owner's Manual - Page 32
    2 Press the latches to release the palm-rest from the computer base. 1 1 latches (4) 32 | Removing the Palm-Rest
  • Dell Inspiron 14 3421 | Owner's Manual - Page 33
    3 Turn the computer over and open the display as far as possible. 4 Remove the screws that secure the palm-rest to the computer base. 5 Lift the connector latches and, using the pull-tabs, disconnect the touchpad cable and the power-button cable from the system board. 1 2 1 power-button cable 3
  • Dell Inspiron 14 3421 | Owner's Manual - Page 34
    6 Using a plastic scribe, gently lift and release the tabs on the palm-rest from the slots on the computer base. CAUTION: Separate the palm-rest from the display assembly carefully to avoid damage to the display assembly. 7 Lift the palm-rest off the computer base. 1 palm-rest 2 1 2 plastic scribe
  • Dell Inspiron 14 3421 | Owner's Manual - Page 35
    safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Align the palm-rest over the the computer base. Postrequisites 1 Replace the keyboard. See "Replacing the Keyboard" on page 20. 2 Follow the instructions from step 3 to step 5 in "
  • Dell Inspiron 14 3421 | Owner's Manual - Page 36
    practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. CAUTION: Removing the coin-cell on page 21. 3 Follow the instructions from step 1 to step 3 in "Removing the Hard Drive" on page 25. 4 Remove the keyboard. See "Removing the Keyboard" on page 17. 5 Remove
  • Dell Inspiron 14 3421 | Owner's Manual - Page 37
    Procedure Using a plastic scribe, gently pry out the coin-cell battery out of the battery socket on the system board. 1 2 3 1 plastic scribe 3 battery socket 2 coin-cell battery Removing the Coin-Cell Battery | 37
  • Dell Inspiron 14 3421 | Owner's Manual - Page 38
    best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. WARNING: The battery may explode if the Palm-Rest" on page 35. 2 Replace the keyboard. See "Replacing the Keyboard" on page 20. 3 Follow the instructions from step 3 to step 5 in "Replacing the Hard
  • Dell Inspiron 14 3421 | Owner's Manual - Page 39
    at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Remove the base cover. See "Removing the Base Cover" on page 21. 3 Follow the instructions from step 1 to step 3 in "Removing the Hard Drive" on page 25. 4 Remove the keyboard. See
  • Dell Inspiron 14 3421 | Owner's Manual - Page 40
    Procedure 1 Lift the connector latch and, using the pull-tab, disconnect the I/O-board cable from the I/O-board. 2 Remove the screw that secures the I/O board to the computer base. 3 Lift the I/O board off the computer base. 1 2 3 4 1 I/O board 3 pull-tab 5 screw 5 2 connector latch 4 I/O board
  • Dell Inspiron 14 3421 | Owner's Manual - Page 41
    best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Use the alignment posts on the Palm-Rest" on page 35. 2 Replace the keyboard. See "Replacing the Keyboard" on page 20. 3 Follow the instructions from step 3 to step 5 in "Replacing the
  • Dell Inspiron 14 3421 | Owner's Manual - Page 42
    at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Remove the base cover. See "Removing the Base Cover" on page 21. 3 Follow the instructions from step 1 to step 3 in "Removing the Hard Drive" on page 25. 4 Remove the keyboard. See
  • Dell Inspiron 14 3421 | Owner's Manual - Page 43
    Procedure 1 Peel the tape that secures the display cable to the display-cable connector. 2 Lift the connector latch and pull the tape to disconnect the display cable from the display-cable connector. 1 2 3 1 display cable 3 connector latch 2 tape 3 Peel the display cable from the fan. 4 Move the
  • Dell Inspiron 14 3421 | Owner's Manual - Page 44
    5 Disconnect the power-adapter-port cable from the system board. 6 Note the power-adapter-port cable routing and remove it from the routing guides on the computer base. 7 Lift the power-adapter port, along with its cable, off the computer base. 1 2 3 1 power-adapter port 3 power-adapter-port cable
  • Dell Inspiron 14 3421 | Owner's Manual - Page 45
    the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 the power-adapter-port cable through the routing guides on the computer base. 3 Connect the power page 35. 2 Replace the keyboard. See "Replacing the Keyboard" on page 20. 3 Follow the instructions from step 3 to step 5
  • Dell Inspiron 14 3421 | Owner's Manual - Page 46
    the Memory Module(s)" on page 23. 5 Follow the instructions from step 1 to step 3 in "Removing the Hard Drive" on page 25. 6 Remove the wireless Mini-Card. See "Removing the Wireless Mini-Card" on page 28. 7 Remove the keyboard. See "Removing the Keyboard" on page 17. 8 Remove the palm-rest. See
  • Dell Inspiron 14 3421 | Owner's Manual - Page 47
    Procedure 1 Peel the tape that secures the display cable to the system-board connector. 2 Lift the connector latch and, using the pull-tab, disconnect the display cable from the system-board connector. 3 Peel the display cable from the fan. 4 Lift the connector latch and, using the pull-tab,
  • Dell Inspiron 14 3421 | Owner's Manual - Page 48
    6 Remove the screw that secures the system board to the computer base. 7 Lift the system board at an angle and release the system-board ports from the slots on the computer base. 8 Lift the system-board assembly off the computer base. 2 1 1 system board 2 screw 9 Turn the system board over. 10
  • Dell Inspiron 14 3421 | Owner's Manual - Page 49
    dell.com/regulatory_compliance. NOTE: Your computer's Service Tag is stored in the system board. You must enter the Service the keyboard. See "Replacing the Keyboard" on page 20. 4 Replace the wireless Mini-Card. See "Replacing the Wireless Mini-Card" on page 30. 5 Follow the instructions from
  • Dell Inspiron 14 3421 | Owner's Manual - Page 50
    Entering the Service Tag in system setup 1 Turn on the computer. 2 Press during POST to enter the system setup program. 3 Using the arrow keys, select Enter Setup and press . 4 Navigate to the Main tab and enter your computer's Service Tag in the Service Tag field. 50 | Replacing the
  • Dell Inspiron 14 3421 | Owner's Manual - Page 51
    at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Follow the instructions from step 1 to step 2 in "Removing the Optical Drive" on page 14. 3 Remove the base cover. See "Removing the Base Cover" on page 21. 4 Remove the keyboard. See
  • Dell Inspiron 14 3421 | Owner's Manual - Page 52
    practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Clean the thermal grease Replace the keyboard. See "Replacing the Keyboard" on page 20. 4 Replace the base cover. See "Replacing the Base Cover" on page 22. 5 Follow the instructions from step
  • Dell Inspiron 14 3421 | Owner's Manual - Page 53
    at dell.com/ regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Follow the instructions from step 1 to step 2 in "Removing the Optical Drive" on page 14. 3 Remove the base cover. See "Removing the Base Cover" on page 21. 4 Remove the keyboard. See
  • Dell Inspiron 14 3421 | Owner's Manual - Page 54
    Procedure 1 Note the speaker-cable routing and remove the cable from its routing guides. 2 Lift the speakers, along with the speaker cable, off the computer base. 1 speaker cable 2 1 2 speakers (2) 54 | Removing the Speakers
  • Dell Inspiron 14 3421 | Owner's Manual - Page 55
    cable through the routing guides on the computer base. Postrequisites 1 Follow the instructions from step 3 to step 9 in "Replacing the System Board" on page 49. 2 Replace the palm-rest. See "Replacing the Palm-Rest" on page 35. 3 Replace the keyboard. See "Replacing the Keyboard" on page 20
  • Dell Inspiron 14 3421 | Owner's Manual - Page 56
    at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Follow the instructions from step 1 to step 2 in "Removing the Optical Drive" on page 14. 3 Remove the base cover. See "Removing the Base Cover" on page 21. 4 Remove the keyboard. See
  • Dell Inspiron 14 3421 | Owner's Manual - Page 57
    1 Note the antenna cable routing and remove the cable from its routing guides. 2 Remove the screws that secure the display assembly to the computer base. 3 Lift the display assembly off the computer base. 1 2 3 1 display assembly 3 routing guides 2 screws (4) Removing the Display Assembly | 57
  • Dell Inspiron 14 3421 | Owner's Manual - Page 58
    Compliance Homepage at dell.com/regulatory_compliance. the routing guides on the computer base. Postrequisites 1 Follow the instructions from step keyboard. See "Replacing the Keyboard" on page 20. 4 Replace the base cover. See "Replacing the Base Cover" on page 22. 5 Follow the instructions
  • Dell Inspiron 14 3421 | Owner's Manual - Page 59
    at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Follow the instructions from step 1 to step 2 in "Removing the Optical Drive" on page 14. 3 Remove the base cover. See "Removing the Base Cover" on page 21. 4 Remove the keyboard. See
  • Dell Inspiron 14 3421 | Owner's Manual - Page 60
    Procedure 1 Press the hinge covers on the sides and lift the hinge covers to remove them from the display assembly. 1 1 hinge covers (2) 2 Using your fingertips, carefully pry up the inside edge of the display bezel. 3 Remove the display bezel off the display back-cover. 1 1 display bezel 60 |
  • Dell Inspiron 14 3421 | Owner's Manual - Page 61
    practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Align the display bezel Replace the keyboard. See "Replacing the Keyboard" on page 20. 5 Replace the base cover. See "Replacing the Base Cover" on page 22. 6 Follow the instructions from step
  • Dell Inspiron 14 3421 | Owner's Manual - Page 62
    at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Follow the instructions from step 1 to step 2 in "Removing the Optical Drive" on page 14. 3 Remove the base cover. See "Removing the Base Cover" on page 21. 4 Remove the keyboard. See
  • Dell Inspiron 14 3421 | Owner's Manual - Page 63
    Procedure 1 Remove the screws that secure the display hinges to the display back-cover. 2 Lift the display hinges off the display back-cover. 1 2 3 1 display hinges (2) 3 screws (8) 2 display back-cover Removing the Display Hinges | 63
  • Dell Inspiron 14 3421 | Owner's Manual - Page 64
    practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Align the screw holes Replace the keyboard. See "Replacing the Keyboard" on page 20. 6 Replace the base cover. See "Replacing the Base Cover" on page 22. 7 Follow the instructions from step
  • Dell Inspiron 14 3421 | Owner's Manual - Page 65
    the Memory Module(s)" on page 23. 5 Follow the instructions from step 1 to step 3 in "Removing the Hard Drive" on page 25. 6 Remove the wireless Mini-Card. See "Removing the Wireless Mini-Card" on page 28. 7 Remove the keyboard. See "Removing the Keyboard" on page 17. 8 Remove the palm-rest. See
  • Dell Inspiron 14 3421 | Owner's Manual - Page 66
    Procedure 1 Remove the screws that secure the display panel to the display back-cover. 2 Gently lift the display panel and turn it over. 1 2 3 1 display back-cover 3 screw (4) 2 display panel 3 Peel the tape adhered over the display cable. 4 Disconnect the display cable from the display-panel
  • Dell Inspiron 14 3421 | Owner's Manual - Page 67
    practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Connect the display the keyboard. See "Replacing the Keyboard" on page 20. 7 Replace the wireless Mini-Card. See "Replacing the Wireless Mini-Card" on page 30. 8 Follow the instructions from
  • Dell Inspiron 14 3421 | Owner's Manual - Page 68
    the Memory Module(s)" on page 23. 5 Follow the instructions from step 1 to step 3 in "Removing the Hard Drive" on page 25. 6 Remove the wireless Mini-Card. See "Removing the Wireless Mini-Card" on page 28. 7 Remove the keyboard. See "Removing the Keyboard" on page 17. 8 Remove the palm-rest. See
  • Dell Inspiron 14 3421 | Owner's Manual - Page 69
    Procedure 1 Peel the tapes that secure the camera module to the display back-cover. 2 Disconnect the camera cable from the camera module. 3 Peel the camera module off the display back-cover. 1 2 3 1 tapes (2) 3 camera cable 2 camera module Removing the Camera Module | 69
  • Dell Inspiron 14 3421 | Owner's Manual - Page 70
    the palm-rest. See "Replacing the Palm-Rest" on page 35. 5 Replace the keyboard. See "Replacing the Keyboard" on page 20. 6 Replace the wireless Mini-Card. See "Replacing the Wireless Mini-Card" on page 30. 7 Follow the instructions from step 3 to step 5 in "Replacing the Hard Drive" on page 27
  • Dell Inspiron 14 3421 | Owner's Manual - Page 71
    update is available or when replacing the system board. To flash the BIOS: 1 Turn on the computer. 2 Go to dell.com/support. 3 Click Start Here under Support for Home Users. 4 If you have your computer's Service Tag, type your computer's Service Tag and click Submit. If you do not have your computer
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Inspiron 14/14R
Owner’s Manual
Computer model: Inspiron 3421/5421
Regulatory model: P37G
Regulatory type: P37G001