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Manuel d’utilisation Dell 7420

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Summary
  • Dell 7420 - page 1

    Dell Inspiron 1 4R Owner’s Manual Computer model: Inspiron 5420/7420 Regulatory model: P33G Regulatory type: P33G001 book.book Page 1 Wednesda y, April 11, 2012 4:13 PM ...

  • Dell 7420 - page 2

    Notes, Cautions, and Warnings NOTE: A NOTE indicates important informat ion that helps you make better use of your computer. CAUTION: A CAUTION indicates potentia l damage to hardware or loss of data if instructions are not followed. WARNING: A W ARNING indicates a potential for property damage, personal injury, or death. ____________________ Infor ...

  • Dell 7420 - page 3

    Contents | 3 Contents 1B e f o r e Y o u B e g i n . . . . . . . . . . . . . . . . . . . . . . . . 8 T urn Off Y our Computer and Connected Devices . . . 8 Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . 8 Recommended T ools . . . . . . . . . . . . . . . . . . . . . . 9 2 After Working Inside Y our Computer . . . . . . . 10 3 Re ...

  • Dell 7420 - page 4

    4 | Contents 11 Removing the Memory Module(s) . . . . . . . . . . 30 Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 12 Replacing the Memory Module(s) . . . . . . . . . . 32 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Postrequisites ...

  • Dell 7420 - page 5

    Contents | 5 21 Removing the Power-Adapter Port . . . . . . . . 54 Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 22 R eplacing the Power-Adapter Port . . . . . . . . 56 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Postrequisites . . ...

  • Dell 7420 - page 6

    6 | Contents 31 Removing the Display Bezel . . . . . . . . . . . . . . 76 Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 32 Replacing the Display Bezel . . . . . . . . . . . . . . 78 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Postr ...

  • Dell 7420 - page 7

    Contents | 7 41 Removing the System Board . . . . . . . . . . . . . . 98 Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 42 Replacing the System Board . . . . . . . . . . . . . 102 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Postrequi ...

  • Dell 7420 - page 8

    8 | C o n t e n t s book.book Page 8 Wednesda y, April 11, 2012 4:13 PM ...

  • Dell 7420 - page 9

    Before Y ou Begin | 9 1 Before Y ou Begin T urn Off Y our Computer and Connected Devices CAUTION: T o avoid losing data, save and close all open files and exit all open programs before you turn off your computer . 1 Save and close all open files and exit all open programs. 2 Click Start and click Shut down . Microsoft Windows shuts down an d then t ...

  • Dell 7420 - page 10

    10 | Before Y ou Begin CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables have connectors with locking tabs or thumb-screws that you must disengage before disconnecting the cable. When disconnecting cables, keep them evenly aligned to avoid bending any connector pins. When connecting ...

  • Dell 7420 - page 11

    After Working Inside Y our Computer | 11 2 After W orking Inside Y our Computer After you complete replacement pr ocedures, ensure the following: • Replace all screws and ensure that no st ray screws remain inside your computer • Connect any external devices, cables, ca rds, and any other part(s) you removed before working on your computer • ...

  • Dell 7420 - page 12

    12 | After Working Inside Y our Computer book.book Page 12 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 13

    Removing the Switch | 13 3 Removing the Switch WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Proced ...

  • Dell 7420 - page 14

    14 | Removing the Switch book.book Page 14 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 15

    Replacing the Switch | 15 4 Replacing the Switch WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Proc ...

  • Dell 7420 - page 16

    16 | Replacing the Switch book.book Page 16 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 17

    Removing the Battery | 17 5 Removing the Batter y WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Pro ...

  • Dell 7420 - page 18

    18 | Removing the Battery book.book Page 18 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 19

    Replacing the Battery | 19 6 Replacing the Batter y WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. P ...

  • Dell 7420 - page 20

    20 | Replacing the Battery book.book Page 20 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 21

    Removing the Keyboard | 21 7 Removing the Keyboard WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Pr ...

  • Dell 7420 - page 22

    22 | Removing the Keyboard Procedure CAUTION: The keycaps on the keyboard are fragile, easily dislodged, and time-consuming to replace. Be careful when removing and handling the keyboa rd. 1 T urn the computer over and open the display as far as possible. 2 Using a plastic scribe, release the keyboard from the tabs on the palm r est and ease the ke ...

  • Dell 7420 - page 23

    Removing the Keyboard | 23 3 Carefully turn the keyboard over and place it on the palm rest. 4 Lift the connector latches and pull the pu ll-tabs to disconnect the keyboard cable and keyboard-backlight cable from the connectors on the system board. 5 Lift the keyboard away from the computer . 1 keyboard cable 2 connector latch 3 keyboard-backlight ...

  • Dell 7420 - page 24

    24 | R e m o v i n g t h e K e y b o a r d book.book Page 24 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 25

    Replacing the Keyboard | 25 8 Replacing the Keyboard WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. ...

  • Dell 7420 - page 26

    26 | Replacing the Keyboard book.book Page 26 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 27

    Removing the Base Cover | 27 9 Removing the Base Cover WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance ...

  • Dell 7420 - page 28

    28 | Removing the Base Cover book.book Page 28 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 29

    Replacing the Base Cover | 29 10 Replacing the Base Cover WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_complia ...

  • Dell 7420 - page 30

    30 | R e p l a c i n g t h e B a s e C o v e r book.book Page 30 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 31

    Removing the Memory Module(s) | 31 11 Removing the Memor y Module(s) WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulat ...

  • Dell 7420 - page 32

    32 | Removing the Memory Module(s) book.book Page 32 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 33

    Replacing the Memory Module(s) | 33 12 Replacing the Memor y Module(s) WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regul ...

  • Dell 7420 - page 34

    34 | Replacing the Memory Module(s) Postrequisites 1 Replace the base cover . See "Replacing the Base Cover" on page 29. 2 Replace the battery. See " Replaci ng the Battery" on page 19. 3 Follow the instructions in " After Work ing Inside Y our Computer" on page 11. 4 T urn on the computer. As the computer boots, it de ...

  • Dell 7420 - page 35

    Removing the Hard Drive | 35 13 Removing the Hard Drive WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_complianc ...

  • Dell 7420 - page 36

    36 | Removing the Hard Drive Procedure 1 Pull the pull-tab to disconnect the hard-drive cable from the system-board connector . 2 Remove the screws that secure the hard -drive assembly to the computer base. 3 Make a note of the hard-drive cab le routing and remove the cable from the routing guides. 4 Lift the hard-drive assembly along with its cabl ...

  • Dell 7420 - page 37

    Removing the Hard Drive | 37 5 Pull the interposer to disconnect the hard-drive cable from the hard-drive. 6 Remove the screws that secure the ha rd-drive bracket to the hard drive. 7 Slide the hard-drive off the hard-drive bracket. 1 hard-drive assembly 2 interposer 1 screws (4) 2 hard-drive bracket 3h a r d d r i v e 2 1 2 3 1 book.book Page 37 W ...

  • Dell 7420 - page 38

    38 | Removing the Hard Drive book.book Page 38 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 39

    Replacing the Hard Drive | 39 14 Replacing the Hard Drive WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_complia ...

  • Dell 7420 - page 40

    40 | Replacing the Hard Drive book.book Page 40 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 41

    Removing the Optical Drive | 41 15 Removing the Optical Drive WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_com ...

  • Dell 7420 - page 42

    42 | Removing the Optical Drive 3 Carefully pry the optical-drive bezel and re move it from the optical-drive assembly . 4 Remove the screws that secure the optical-drive bracket to the optical drive. 5 Remove the optical-drive bracket. 1 screws (2) 2 optical-drive bracket 3 optical drive 4 optical-drive bezel 1 2 4 3 book.book Page 42 Wednesday , ...

  • Dell 7420 - page 43

    Replacing the Optical Drive | 43 16 Replacing the Optical Drive WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_c ...

  • Dell 7420 - page 44

    44 | Replacing the Optical Drive book.book Page 44 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 45

    Removing the Palm Rest | 45 17 Removing the Palm Rest WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. ...

  • Dell 7420 - page 46

    46 | Removing the Palm Rest 3 T urn the computer over and open the display as far as possible. 4 Lift the connector latches and pull the pu ll-tabs to disconnect the power-button board cable, touchpad cable, and hot- key board cable from the connectors on the system board. 5 Pull the pull-tab to disconnect the display cable from the connector on th ...

  • Dell 7420 - page 47

    Removing the Palm Rest | 47 6 Make a note of the display cable routin g and remove the cable from the routing guides on the palm rest. 7 Remove the screws that secure the palm rest to the computer base. CAUTION: Carefully separate the palm re st from the display assembly to avoid damage to the display assembly. 8 Starting from the back of the compu ...

  • Dell 7420 - page 48

    48 | Removing the Palm Rest book.book Page 48 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 49

    Replacing the Palm Rest | 49 18 Replacing the Palm Rest WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_complianc ...

  • Dell 7420 - page 50

    50 | Replacing the Palm Rest book.book Page 50 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 51

    Removing the Mini-Card | 51 19 Removing the Mini-Card WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. ...

  • Dell 7420 - page 52

    52 | Removing the Mini-Card 3 Lift the Mini-Card out of the system-board connector . CAUTION: When the Mini-Card is not in the computer , store it in protective antistatic packaging. For more informatio n, see "Protecting Against Electrostatic Discharge" in the safety informatio n that shipped with your computer. 1 system-board connector ...

  • Dell 7420 - page 53

    Replacing the Mini-Card | 53 20 Replacing the Mini-Card WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_complianc ...

  • Dell 7420 - page 54

    54 | Replacing the Mini-Card Postrequisites 1 Replace the palm rest. See "Replacing the Palm Rest" on page 49. 2 Replace the keyboard. See "Replacing the Keyboard" on page 25. 3 Replace the base cover . See "Replacing the Base Cover" on page 29. 4 Replace the battery. See " Replaci ng the Battery" on page 19. ...

  • Dell 7420 - page 55

    Removing the Power-Adapter Port | 55 21 Removing the Power-Adapter Port WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regu ...

  • Dell 7420 - page 56

    56 | Removing the Power-Adapter Port book.book Page 56 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 57

    Replacing the Power- Adapter Port | 57 22 Replacing the Power-Adapter Port WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/r ...

  • Dell 7420 - page 58

    58 | Replacing the Power-Adapter Port book.book Page 58 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 59

    Removing the Coin-Cell Battery | 59 23 Removing the Coin-Cell Batter y WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regul ...

  • Dell 7420 - page 60

    60 | Removing the Coin-Cell Battery Procedure 1 T urn the system board over. 2 Using a plastic scribe, gently pry the coin-c ell battery out of the battery socket on the system board. 1 plastic scribe 2 coin-cell battery 3b a t t e r y s o c k e t 3 2 1 book.book Page 60 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 61

    Replacing the Coin-Cell Battery | 61 24 Replacing the Coin-Cell Batter y WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/reg ...

  • Dell 7420 - page 62

    62 | Replacing the Coin-Cell Battery book.book Page 62 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 63

    Removing the Fan | 63 25 Removing the Fan WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisit ...

  • Dell 7420 - page 64

    64 | R e m o v i n g t h e F a n book.book Page 64 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 65

    Replacing the Fan | 65 26 Replacing the Fan WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure ...

  • Dell 7420 - page 66

    66 | Replacing the Fan book.book Page 66 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 67

    Removing the Speakers | 67 27 Removing the Speakers WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. P ...

  • Dell 7420 - page 68

    68 | R e m o v i n g t h e S p e a k e r s book.book Page 68 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 69

    Replacing the Speakers | 69 28 Replacing the Speakers WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. ...

  • Dell 7420 - page 70

    70 | Replacing the Speakers book.book Page 70 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 71

    Removing the Display Assembly | 71 29 Removing the Display Assembly WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulato ...

  • Dell 7420 - page 72

    72 | Removing the Display Assembly 3 T urn the computer over and open the display as far as possible. 4 Disconnect the antenna cables from the connectors on the Mini-Card. 1 antenna cables (2) 2 Mini-Card 1 2 book.book Page 72 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 73

    Removing the Display Assembly | 73 5 Remove the screws that secure the di splay assembly to the computer base. 6 Lift the display assembly off the computer base. 1 display assembly 2 screws (4) 2 1 book.book Page 73 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 74

    74 | Removing the Display Assembly book.book Page 74 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 75

    Replacing the Display Assembly | 75 30 Replacing the Display Assembly WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regula ...

  • Dell 7420 - page 76

    76 | Replacing the Display Assembly book.book Page 76 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 77

    Removing the Display Bezel | 77 31 Removing the Display Bezel WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_com ...

  • Dell 7420 - page 78

    78 | Removing the Display Bezel book.book Page 78 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 79

    Replacing the Display Bezel | 79 32 Replacing the Display Bezel WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_c ...

  • Dell 7420 - page 80

    80 | Replacing the Display Bezel book.book Page 80 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 81

    Removing the Display Panel | 81 33 Removing the Display Panel WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_com ...

  • Dell 7420 - page 82

    82 | Removing the Display Panel 2 Carefully lift the display panel and turn it over . 3 Peel and lift the tape that secures the di splay cable to the display-board connector and then disconnect the display cable. 4 Lift the display panel away from the display cover . 1 display cable 2 display-board connector 3t a p e 3 1 2 book.book Page 82 Wednesd ...

  • Dell 7420 - page 83

    Replacing the Display Panel | 83 34 Replacing the Display Panel WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_c ...

  • Dell 7420 - page 84

    84 | Replacing the Display Panel book.book Page 84 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 85

    Removing the Display Hinges | 85 35 Removing the Display Hinges WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_c ...

  • Dell 7420 - page 86

    86 | Removing the Display Hinges 3 T urn the display assembly over. 4 Remove the screws that secure the display hinges to the display cover . 5 Lift the display hinges off the display cover . 1d i s p l a y p a n e l 2s c r e w s ( 1 0 ) 3 display hinges (2) 2 3 1 book.book Page 86 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 87

    Replacing the Display Hinges | 87 36 Replacing the Display Hinges WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory ...

  • Dell 7420 - page 88

    88 | Replacing the Display Hinges book.book Page 88 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 89

    Removing the Camera Module | 89 37 Removing the Camera Module WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_com ...

  • Dell 7420 - page 90

    90 | Removing the Camera Module 2 T urn the camera module over. 3 Peel and lift the tape that secures the camera cable to the camera module. 1 tape 2 camera cable 1 2 book.book Page 90 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 91

    Removing the Camera Module | 91 4 Disconnect the camera cable from the connector on the camera module. 1 camera cable connector 2 camera module 3 camera cable 3 1 2 book.book Page 91 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 92

    92 | Removing the Camera Module book.book Page 92 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 93

    Replacing the Camera Module | 93 38 Replacing the Camera Module WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_c ...

  • Dell 7420 - page 94

    94 | Replacing the Camera Module book.book Page 94 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 95

    Removing the Processor | 95 39 Removing the Processor WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. ...

  • Dell 7420 - page 96

    96 | Removing the Processor Procedure 1 T o loosen the ZIF socket, use a small, fl at-blade screwdriver and rotate the ZIF - socket cam screw counterclockwise until it comes to the cam stop. CAUTION: T o ensure maximum cooling for the processor , do not touch the heat transfer areas on the processor thermal c ooling assembly. The oils in your skin ...

  • Dell 7420 - page 97

    Replacing the Processor | 97 40 Replacing the Processor WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_complianc ...

  • Dell 7420 - page 98

    98 | Replacing the Processor 11 Replace the battery. See " Replaci ng the Battery" on page 19. 12 Follow the instructions in " After Work ing Inside Y our Computer" on page 11. book.book Page 98 Wednesday , April 11, 2012 4:13 PM ...

  • Dell 7420 - page 99

    Removing the System Board | 99 41 Removing the System Board WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compl ...

  • Dell 7420 - page 100

    100 | Removing the System Board Procedure NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS after yo u replace the system-board assembly. NOTE: Before disconnecting the cables from the system board, note the location of the connectors so that you can reconne ct them correctly after you rep ...

  • Dell 7420 - page 101

    Removing the System Board | 101 3 Lift the system board at an angle and re lease the connectors on the system board from the slots on the computer base. 4 Remove the processor . See "Remov ing the Processor" on page 95. 5 Remove the processor heat-sink. See "R emoving the Processor Heat- Sink" on page 105. 6 Remove the screws th ...

  • Dell 7420 - page 102

    102 | Removing the System Board book.book Page 102 Wednesday, April 11, 2012 4:13 PM ...

  • Dell 7420 - page 103

    Replacing the System Board | 103 42 Replacing the System Board WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_co ...

  • Dell 7420 - page 104

    104 | Replacing the System Board Entering the Service T ag in the BIOS 1 T urn on the computer. 2 Press <F2> during POST to en ter the system setup program. 3 Navigate to the main tab and enter the Se rvice T ag in the Service T ag Setting field. book.book Page 104 Wednesday, April 11, 2012 4:13 PM ...

  • Dell 7420 - page 105

    Removing the Processor Heat- Sink | 105 43 Removing the Processor Heat- Sink WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com ...

  • Dell 7420 - page 106

    106 | Removing the Processor Heat- Sink Procedure 1 T urn the system-board assembly over. 2 In sequential order (indicated on the processor heat-sink), loosen the captive screws that secure the processo r heat-sink to the system board. 3 Lift the processor heat-s ink off the system board. 1 processor heat-sink 2 captive screws (6) 2 1 book.book Pag ...

  • Dell 7420 - page 107

    Replacing the Processor Heat- Sink | 107 44 Replacing the Processor Heat- Sink WARNING: Before working inside your computer , read the safety information that shipped with your computer and foll ow the steps in "Before Y ou Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.c ...

  • Dell 7420 - page 108

    108 | Replacing the Processor Heat- Sink book.book Page 108 Wednesday, April 11, 2012 4:13 PM ...

  • Dell 7420 - page 109

    Flashing the BIOS | 109 45 Flashing the BIOS The BIOS may require flashing when an update is available or when replacing the system board. To flash the BIOS: 1 T urn on the computer. 2 Go to support.dell.com/support/downloads . 3 Locate the BIOS update file for your computer: NOTE: The Service T ag for your computer is located on a label at the bot ...

  • Dell 7420 - page 110

    110 | Flashing the BIOS book.book Page 110 Wednesday, April 11, 2012 4:13 PM ...

Fabricant Dell Catégorie Laptop

Les documents que nous recevons du fabricant de l'appareilDell 7420 peuvent être divisés en plusieurs groupes. Ceux-ci sont, entre autres:
- dessins techniques Dell
- manuels d’utilisations 7420
- fiches produit Dell
- dépliants
- ou étiquettes-énergie Dell 7420
Tous sont importants, mais les informations les plus importantes du point de vue de l'utilisation de l'appareil se trouvent dans le manuel d’utilisation Dell 7420.

Un groupe de documents appelé manuels d’utilisation est également divisé en types plus spécifiques, tels que: Manuels d’installation Dell 7420, manuels d’entretien, brefs manuels ou manuels de l’utilisateur Dell 7420. Selon vos besoins, vous devriez chercher le document dont vous avez besoin. Sur notre site, vous pouvez voir le manuel le plus populaire d’utilisation du produit Dell 7420.

Manuels d’utilsiation similaires

Manuel d’utilisation complet de l’appareil Dell 7420, quelle devrait-elle être?
Le manuel d’utilisation, également appelé le mode d’emploi, ou tout simplement le manuel, est un document technique destiné à aider à utiliser Dell 7420 par les utilisateurs. Des manuels sont généralement écrits par un rédacteur technique, mais dans un langage accessible à tous les utilisateurs Dell 7420.

Le manuel d’utilisation complet Dell, devrait inclure plusieurs éléments de base. Certains d'entre eux sont moins importants, tels que: la couverture / page de titre ou pages d'auteur. Cependant, la partie restante, devrait nous fournir des informations importantes du point de vue de l'utilisateur.

1. Introduction et des conseils sur la façon d'utiliser le manuel Dell 7420 - Au début de chaque manuel, nous devrions trouver des indices sur la façon d'utiliser le document. Il doit contenir des informations sur l'emplacement de la table des matières Dell 7420, FAQ ou des problèmes les plus fréquents - les points qui sont les plus souvent recherchés par les utilisateurs de chaque manuel
2. Table des matières - index de tous les conseils pour lDell 7420 qui peuvent être trouvés dans le document courant
3. Conseils sur la façon d'utiliser les fonctions de base de l’appareil Dell 7420 - qui devraient nous aider dans les premières étapes lors de l'utilisation Dell 7420
4. Troubleshooting - séquence systématique des activités qui nous aideront à diagnostiquer et ensuite résoudre les principaux problèmes de Dell 7420
5. FAQ - questions fréquemment posées
6. Détails du contact Informations sur l'endroit où chercher le contact avec le fabricant / service Dell 7420 dans un pays donné, si le problème ne peut être résolu par nous-mêmes.

Avez-vous une question à propos de Dell 7420?

Utiliser le formulaire ci-dessous

Si vous n’avez pas résolu votre problème avec Dell 7420, avec l'aide du manuel que vous avez trouvé, posez une question en utilisant le formulaire ci-dessous. Si un utilisateur a eu un problème similaire avec Dell 7420 il est probable qu’il a envie de partager la façon de le résoudre.

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