Dell Latitude E5420 (Early 2011) User Manual

Dell Latitude 5420/E5420/E5420m Owner's ManualRegulatory Model: P15FRegulatory Type: P15F001

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22. Disconnect the following cables from the system board:– thermal fan cable– speaker cable– audio board cable– bluetooth cable100

23. Remove the screws that secure the system board.101

24. Lift the edge of the system board to disconnect it from the input/output (I/O) panel.102

25. Release the system board from the port connectors.103

26. Remove the system board.104

Related LinksInstalling the System BoardInstalling the System Board1. Align the system board to the port connectors and place the system board in the

8. Replace the ExpressCard/Smart Card/PCMCIA module.9. Replace the palm rest.10. Replace the processor.11. Replace the heat sink.12. Replace the CPU d

27Coin-Cell BatteryRemoving the Coin-Cell Battery1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the subsc

23. Pry and remove the coin-cell battery.108

Related LinksInstalling the Coin-Cell BatteryInstalling the Coin-Cell Battery1. Connect the coin-cell battery to system board and secure it.2. Replace

2BatteryRemoving the Battery1. Follow the procedures in Before Working On Your Computer.2. Slide the release latches to unlock the battery.3. Remove t

12. Replace the wireless wide area network (WWAN).13. Replace the hard drive.14. Replace the optical drive.15. Replace the keyboard.16. Replace the ke

28Input/Output PanelRemoving The Input/Output (I/O) Panel1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove t

23. Remove the I/O panel.112

Related LinksInstalling The Input/Output (I/O) PanelInstalling the Input/Output (I/O) Panel1. Place the I/O panel in the computer.2. Tighten the screw

12. Replace the wireless local area network (WLAN).13. Replace the wireless wide area network (WWAN).14. Replace the hard drive.15. Replace the optica

29Power ConnectorRemoving the Power Connector1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the subscribe

23. Remove the power connector.116

Related LinksInstalling the Power ConnectorInstalling the Power Connector1. Secure the DC-In port to the routing channel on the processor fan.2. Repla

12. Replace the wireless local area network (WLAN).13. Replace the hard drive.14. Replace the optical drive.15. Replace the keyboard.16. Replace the k

30Modem ConnectorRemoving the Modem Connector1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the subscribe

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25. Remove the modem connector.120

Related LinksInstalling the Modem ConnectorInstalling the Modem Connector1. Secure the modem connector into the routing channel on the thermal fan.2.

12. Replace the CPU door.13. Replace the wireless local area network (WLAN)14. Replace the wireless wide area network (WWAN)15. Replace the hard drive

31Thermal FanRemoving the Thermal Fan1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the subscriber identi

23. Remove the screw that secures the thermal fan.124

24. Remove the thermal fan.125

Related LinksInstalling the Thermal FanInstalling the Thermal Fan1. Connect the processor fan in the computer.2. Tighten the screws to secure the proc

12. Replace the CPU door.13. Replace the wireless local area network (WLAN).14. Replace the wireless wide area network (WWAN).15. Replace the hard dri

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32SpeakerRemoving the Speakers1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the subscriber identity modu

3PC CardRemoving the PC Card1. Follow the procedures in Before Working On Your Computer.2. Press in on the PC latch to release the latch.3. Press in o

26. Remove the speakers.Related LinksInstalling the SpeakersInstalling the Speakers1. Secure the speaker cables to the routing channels.2. Connect the

21. Replace the keyboard trim and keyboard.22. Replace the memory.23. Replace the back panel.24. Replace the secure digital (SD) card.25. Replace the

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33Display BezelRemoving the Display Bezel1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Pry up the bottom edge o

Installing the Display BezelInstalling the Display Bezel1. Place the display bezel on the computer.2. From the top edge, press downward on the display

34Display PanelRemoving the Display Panel1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the display bezel

7. Remove the screws that secure the display brackets to the display panel and remove the brackets.Related LinksInstalling the Display PanelInstalling

35Display HingesRemoving the Display Hinges1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the back panel.

15. Remove the hinge caps from the display hinges.Related LinksInstalling the Display HingesInstalling the Display Hinges1. Secure the display hinge c

Removing the Display Hinges139

Installing the PC Card1. Push the PC latch to lock it.2. Push the PC card to its slot until it clicks.3. Follow the procedures in After Working Inside

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36CameraRemoving the Camera Module1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the display bezel.4. Rem

Related LinksInstalling the Camera ModuleInstalling the Camera Module1. Place the camera module on the display cover.2. Tighten the screw to secure th

37SpecificationsTechnical SpecificationsNOTE: Offerings may vary by region. The following specifications are only those required by law to ship with y

AudioType two-channel high definition audioController 92HD90BStereo Conversion 24-bit (analog-to-digital and digital-to-analog)Interface:Internal high

DisplayType White Light Emitting Diode (WLED) displaySizeLatitude 5420/E5420/E5420m 14.0 inch high definition WLEDLatitude 5520/E55420/E5520m 15.6 inc

DisplayPixel pitchLatitude 5420/E5420/E5420mHD 0.2265 mm x 0.2265 mmHD+ 0.1935 mm x 0.1935 mmLatitude 5520/E55420/E5520mHD 0.2520 mm x 0.2520 mmFHD 0.

Battery4-cell 14.8 VDC6- and 9-cell 11.1 VDCTemperature range:Operating 0 °C to 50 °C (32 °F to 122 °F)Non-Operating –40 °C to 85 °C (–40 °F to 185 °F

PhysicalLatitude 5420/E5420/E5420m 350.00 mm (13.78 inches)Latitude 5520/E5520/E5520m 388.00 mm (15.28 inches)DepthLatitude 5420/E5420/E5420m 240.00 m

38System SetupOverview System Setup allows you to:• change the system configuration information after you add, change, or remove any hardware in your

4Secure Digital (SD) CardRemoving The Secure Digital (SD) Card1. Follow the procedures in Before Working On Your Computer.2. Push in on the SD card.3.

General• USB Storage Device• CD/DVD/CD-RW Drive• Onboard NIC• Cardbus NICBoot List Option Allows you to change the boot list option.• Legacy• UEFIDate

System ConfigurationDefault Setting: ATSerial Port Allows you to configure the integrated serial port. The options are:• Disabled• COM1• COM2• COM3• C

System Configuration• Disabled• Level is 25%• Level is 50%• Level is 50%• Levels is 100%Default Setting: Level is 75%Drives Allows you to configure th

SecurityDefault Setting: DisabledPassword Change Allows you to enable the disable permission to the System and Hard Drive passwords when the admin pas

Performance• 2Default Setting: AllIntel® SpeedStep™ Allows you to enable or disable the Intel SpeedStep feature.Default Setting: Enable Intel SpeedSte

Power ManagementCharger Behavior Allows you to enable or disable the battery charger. The options are;• Disabled• EnabledDefault Setting: EnabledPOST

Wireless• WLAB• BluetoothDefault Setting: All the options are selected.Wireless Device Enable Allows you to enable or disable the wireless devices.Mai

39DiagnosticsDiagnosticsDevice Status LightsTurns on when you turn on the computer and blinks when the computer is in a power management mode.Turns on

capacity remains. Each light represents incremental degradation. If five lights appear, less than 60 percent of the charge capacity remains, and you s

40Contacting DellContacting DellNOTE: If you do not have an active Internet connection, you can find contact information on your purchase invoice, pac

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5Subscriber Identity Module (SIM) CardRemoving the Subscriber Identity Module (SIM) Card1. Follow the procedures in Before Working On Your Computer.2.

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6ExpressCardRemoving the ExpressCard1. Follow the procedures in Before Working On Your Computer.2. Push in on the ExpressCard.3. Slide the ExpressCard

Notes, Cautions, and WarningsNOTE: A NOTE indicates important information that helps you make better use of your computer.CAUTION: A CAUTION indicates

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7Back PanelRemoving the Back Panel1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the screws that secure t

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8Keyboard TrimRemoving the Keyboard Trim1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Pry up the keyboard trim

Installing the Keyboard TrimInstalling the Keyboard Trim1. Align the keyboard trim with the tabs on the top of the palm rest.2. Press along the top ed

9KeyboardRemoving the Keyboard1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the keyboard trim.4. Remove

6. Flip the keyboard.26

7. Disconnect the keyboard data cable from the computer.27

8. Remove the keyboard from the computer.28

9. Disconnect and remove the cable from the keyboard.29

ContentsNotes, Cautions, and Warnings...21 Working on

Related LinksInstalling the KeyboardInstalling the Keyboard1. Connect the keyboard-data cable to the system board.2. Connect the keyboard data cable t

10Optical DriveRemoving the Optical Drive1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the back panel.4.

Installing the Optical DriveInstalling the Optical Drive1. Slide the optical drive into the drive bay on the right side of the computer.2. Tighten the

11Hard DriveRemoving the Hard Drive1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the back panel.4. Remov

7. Disconnect the bracket from the hard drive.8. Disconnect the hard-drive connector from the hard drive.Related LinksInstalling the Hard Drive Assemb

12Wireless Local Area Network (WLAN) CardRemoving the Wireless Local Area Network (WLAN) Card1. Follow the procedures in Before Working On Your Comput

Related LinksInstalling the Wireless Local Area Network (WLAN) CardInstalling The Wireless Local Area Network (WLAN) Card1. Slide the WLAN card into i

13Wireless Wide Area Network (WWAN) CardRemoving the Wireless Wide Area Network (WWAN) Card1. Follow the procedures in Before Working On Your Computer

Related LinksInstalling the Wireless Wide Area Network (WWAN) cardInstalling The Wireless Wide Area Network (WWAN) Card1. Slide the WWAN card into its

14MemoryRemoving the Memory Module1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the back panel.4. Pry th

Installing the Keyboard...

Related LinksRemoving the Memory Module40

15CPU DoorRemoving the CPU Door1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the back panel.4. Remove th

Related LinksInstalling the CPU DoorInstalling the CPU Door1. Slide the CPU door downwards and towards the back of the computer.2. Tighten the screws

16Heat SinkRemoving The Heat Sink1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the back panel.4. Remove

5. Follow the procedures in After Working Inside Your Computer.Related LinksRemoving the Heat Sink44

17ProcessorRemoving the Processor1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the back panel.4. Remove

5. Replace the battery.6. Follow the procedures in After Working Inside Your Computer.Related LinksRemoving the Processor46

18Palm RestRemoving the Palm Rest1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the back panel.4. Remove

9. Flip the computer and remove the screws from the back of the computer.48

10. Disconnect the following cables from the computer:– power button cable– fingerprint cable– touchpad cable49

Removing the ExpressCard/Smart Card/PCMCIA Module ...61Installing the

11. Lift up the left edge of the palm rest assembly.50

12. Release the tabs on the right edge of the palm rest assembly.51

13. Remove the palm rest assembly from the computer.52

Related LinksInstalling the Palm RestInstalling the Palm Rest1. From the left edge of the palm rest, press the palm rest downwards on all the edges on

9. Replace the optical drive.10. Replace the back panel.11. Replace the battery.12. Follow the procedures in After Working Inside Your Computer.Relate

19LED BoardRemoving the LED Board1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the back panel.4. Remove

10. Disconnect the LED board cable from the system board connector.56

11. Remove the LED board.57

Related LinksInstalling the LED BoardInstalling the LED Board1. Insert the LED board on the left bracket.2. Connect the cable to the system board.3. T

Related LinksRemoving the LED Board59

31 Thermal Fan...123Removing

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20ExpressCard/Smart Card/PCMCIA ModuleRemoving the ExpressCard/Smart Card/PCMCIA Module 1. Follow the procedures in Before Working On Your Computer.2.

10. Disconnect the cage from the system board connector.62

11. Remove the ExpressCard/Smart Card/PCMCIA module.63

Related LinksInstalling the ExpressCard/Smart Card/PCMCIA ModuleInstalling the ExpressCard/Smart Card/PCMCIA Module1. Attach the connector on the back

Related LinksRemoving the ExpressCard/Smart Card/PCMCIA Module65

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21Bluetooth CardRemoving the Bluetooth Card1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the back panel.

10. Remove the screw that secures the Bluetooth card.68

11. Remove the Bluetooth card.69

1Working on Your ComputerBefore Working Inside Your ComputerUse the following safety guidelines to help protect your computer from potential damage an

12. Disconnect the Bluetooth cable from the Bluetooth card.Related LinksInstalling the Bluetooth Card.70

Installing the Bluetooth Card1. Connect the Bluetooth cable to the Bluetooth module.2. Place the Bluetooth module in the computer.3. Connect the Bluet

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22Display AssemblyRemoving the Display Assembly1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the back pa

11. Remove the antenna cables from the routing channels.74

12. Disconnect the low-voltage differential (LVDS) and the camera cables.75

13. Remove the screws that secure the display assembly to the computer.76

14. Remove the display assembly.77

Related LinksInstalling the Display AssemblyInstalling the Display Assembly1. Attach the display assembly to the base of the computer.2. Tighten the s

12. Replace the hard drive.13. Replace the optical drive.14. Replace the back panel.15. Replace the battery.16. Follow the procedures in After Working

6. Close the display and turn the computer upside-down on a flat work surface.NOTE: To avoid damaging the system board, you must remove the main batte

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23BracketsRemoving the Support Brackets1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the back panel.4. R

11. Remove the right support bracket.82

12. Remove the screws that secure the left support bracket.83

13. Remove the left support bracket.84

Related LinksInstalling the Support BracketsInstalling the Support Brackets1. Place the right support bracket in the computer.2. Tighten the screws to

12. Replace the back panel.13. Replace the battery.14. Follow the procedures in After Working Inside Your Computer.Related LinksRemoving the Support B

24Modem CardRemoving the Modem Card1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the back panel.4. Remov

13. Lift the modem card, to disengage from the connector on the back of the card.88

14. Disconnect the modem cable from the modem.89

After Working Inside Your ComputerAfter you complete any replacement procedure, ensure you connect any external devices, cards, and cables before turn

15. Remove the modem card.90

Related LinksInstalling the Modem CardInstalling the Modem Card1. Connect the modem cable.2. Attach the connector on the back of the modem card to the

12. Follow the procedures in After Working Inside Your Computer.Related LinksRemoving the Modem Card92

25Audio BoardRemoving the Audio Board1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the back panel.4. Rem

11. Remove the screw that secures the audio board to the computer.94

12. Remove the audio board.95

Related LinksInstalling the Audio BoardInstalling the Audio Board1. Place the audio board in the computer.2. Tighten the screw to secure the audio boa

12. Follow the procedures in After Working Inside Your Computer.Related LinksRemoving the Audio Board97

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26System BoardRemoving the System Board1. Follow the procedures in Before Working On Your Computer.2. Remove the battery.3. Remove the subscriber iden