Dell Inspiron 24 Manuale utente

Inspiron 24

7000 Series

Service Manual

Computer Model: Inspiron 24–7459

Regulatory Model: W07C

Regulatory Type: W07C003

Notes, cautions, and warnings

NOTE: A NOTE indicates important information that helps you make better

use of your computer.

CAUTION: A CAUTION indicates either potential damage to hardware or loss

of data and tells you how to avoid the problem.

WARNING: A WARNING indicates a potential for property damage, personal

injury, or death.

international copyright and intellectual property laws. Dell™and the Dell logo are trademarks

of Dell Inc. in the United States and/or other jurisdictions. All other marks and names

mentioned herein may be trademarks of their respective companies.

2015 - 08

Rev. A00

Contents

Before working inside your computer.....................................9

Before you begin ...............................................................................................9

Safety instructions............................................................................................10

Recommended tools........................................................................................11

After working inside your computer......................................12

Technical overview....................................................................13

Inside view of your computer..........................................................................13

Stand-base components........................................................................... 14

Display panel with stand assembly............................................................15

System board components ............................................................................ 16

Removing the memory module.............................................. 17

Procedure......................................................................................................... 17

Replacing the memory module.............................................. 19

Procedure.........................................................................................................19

Removing the base cover.........................................................21

Procedure.........................................................................................................21

Replacing the base cover.........................................................23

Procedure.........................................................................................................23

Removing the mSATA card......................................................24

Prerequisites.....................................................................................................24

Procedure........................................................................................................ 24

Replacing the mSATA card...................................................... 26

Procedure........................................................................................................ 26

Post-requisites................................................................................................. 27

Removing the coin-cell battery..............................................28

Prerequisites.................................................................................................... 28

Procedure........................................................................................................ 28

Replacing the coin-cell battery..............................................30

Procedure........................................................................................................ 30

Post-requisites.................................................................................................30

Removing the wireless card.....................................................31

Prerequisites..................................................................................................... 31

Procedure.........................................................................................................31

Replacing the wireless card.....................................................33

Procedure.........................................................................................................33

Post-requisites.................................................................................................34

Removing the computer base.................................................35

Prerequisites.....................................................................................................35

Procedure.........................................................................................................35

Replacing the computer base................................................. 37

Procedure.........................................................................................................37

Post-requisites................................................................................................. 37

Removing the hard drive..........................................................38

Prerequisites.....................................................................................................38

Procedure........................................................................................................ 38

Replacing the hard drive.......................................................... 41

Procedure.........................................................................................................41

Post-requisites................................................................................................. 41

Removing the speakers............................................................42

Prerequisites.....................................................................................................42

Procedure ....................................................................................................... 42

Replacing the speakers............................................................ 44

Procedure ....................................................................................................... 44

Post-requisites.................................................................................................44

Removing the USB board.........................................................45

Prerequisites.....................................................................................................45

Procedure........................................................................................................ 45

Replacing the USB board......................................................... 47

Procedure.........................................................................................................47

Post-requisites................................................................................................. 47

Removing the fan......................................................................48

Prerequisites.................................................................................................... 48

Procedure........................................................................................................ 48

Replacing the fan...................................................................... 50

Procedure........................................................................................................ 50

Post-requisites.................................................................................................50

Removing the heat sink............................................................ 51

Prerequisites..................................................................................................... 51

Procedure.........................................................................................................52

Replacing the heat sink............................................................54

Procedure........................................................................................................ 54

Post-requisites.................................................................................................54

Removing the system board....................................................55

Prerequisites.....................................................................................................55

Procedure.........................................................................................................55

Replacing the system board....................................................58

Procedure........................................................................................................ 58

Post-requisites.................................................................................................58

Removing the back cover........................................................ 59

Prerequisites.....................................................................................................59

Procedure........................................................................................................ 59

Replacing the back cover.........................................................61

Procedure.........................................................................................................61

Post-requisites................................................................................................. 61

Removing the camera...............................................................62

Prerequisites.....................................................................................................62

Procedure for removing the 3D camera........................................................ 62

Procedure for removing the 2D camera........................................................ 64

Replacing the camera...............................................................66

Procedure for replacing the 3D camera.........................................................66

Procedure for replacing the 2D camera.........................................................66

Post-requisites.................................................................................................66

Removing the microphone......................................................67

Prerequisites.....................................................................................................67

Procedure.........................................................................................................67

Replacing the microphone......................................................69

Procedure........................................................................................................ 69

Post-requisites.................................................................................................69

Removing the converter board...............................................70

Prerequisites.....................................................................................................70

Procedure........................................................................................................ 70

Replacing the converter board............................................... 72

Procedure.........................................................................................................72

Post-requisites................................................................................................. 72

Removing the power-button module................................... 73

Prerequisites.....................................................................................................73

Procedure.........................................................................................................73

Replacing the power-button module....................................75

Procedure.........................................................................................................75

Post-requisites................................................................................................. 75

Removing the stand assembly................................................ 76

Prerequisites.....................................................................................................76

Procedure.........................................................................................................76

Replacing the stand assembly.................................................81

Procedure.........................................................................................................81

Post-requisites................................................................................................. 81

Removing the display panel.................................................... 83

Prerequisites.....................................................................................................83

Procedure........................................................................................................ 83

Replacing the display panel.................................................... 89

Procedure........................................................................................................ 89

Post-requisites.................................................................................................89

Removing the control-buttons board................................... 91

Prerequisites.....................................................................................................91

Procedure........................................................................................................ 92

Replacing the control-buttons board...................................94

Procedure........................................................................................................ 94

Post-requisites.................................................................................................94

Clearing forgotten passwords................................................ 95

Clearing CMOS settings........................................................... 97

Flashing the BIOS...................................................................... 99

Getting help and contacting Dell.........................................100

Self-help resources....................................................................................... 100

Contacting Dell.............................................................................................. 101

Before working inside your

computer

CAUTION: To avoid damaging the components and cards, handle

them by their edges and avoid touching pins and contacts.

NOTE: The images in this document may differ from your computer

depending on the configuration you ordered.

Before you begin

1 Save and close all open files and exit all open applications.

2 Shut down your computer.

– Windows 10: Click or tap Start → Power → Shut down.

– Windows 8.1: On the Start screen, click or tap the power icon →

Shut down.

– Windows 7: Click or tap Start → Shut down.

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

outlets.

4 Disconnect all cables such as telephone cables, network cables and so

on, from your computer.

5 Disconnect all attached devices and peripherals, such as keyboard,

mouse, monitor, and so on, from your computer.

6 Remove any media card and optical disc from your computer, if

applicable.

7 After the computer is unplugged, press and hold the power button for 5

seconds to ground the system board.

CAUTION: Place the computer on a flat, soft and clean surface to

avoid scratching the display.

8 Place the computer face down.

Safety instructions

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

www.dell.com/regulatory_compliance.

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, ensure that the work

surface is flat and clean.

CAUTION: To avoid damaging the components and cards, handle

them by their edges and avoid touching pins and contacts.

CAUTION: You should only perform troubleshooting and repairs as

authorized or directed by the Dell technical assistance team. Damage

due to servicing that is not authorized by Dell is not covered by your

warranty. See the safety instructions that shipped with the product or

at www.dell.com/regulatory_compliance.

CAUTION: Before touching anything inside your computer, ground

yourself by touching an unpainted metal surface, such as the metal at

the back of the computer. While you work, periodically touch an

unpainted metal surface to dissipate static electricity, which could

harm internal components.

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

cables, ensure that the ports and connectors are correctly oriented

and aligned.

CAUTION: Press and eject any installed card from the media-card

reader.

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