Dell Inspiron 20 Manuale utente

Inspiron 20

Owner's Manual

Computer Model: Inspiron 20 Model 3048

Regulatory Model: W09B

Regulatory Type: W09B001

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.

2014 - 03

Rev. A00

Contents

Before Working Inside Your Computer.................................... 9

Before You Begin .............................................................................................. 9

Safety Instructions............................................................................................. 9

Recommended Tools...................................................................................... 10

After Working Inside Your Computer......................................12

Technical Overview......................................................................13

Inside View of Your Computer........................................................................ 13

System Board Components ............................................................................14

Removing the Stand Assembly..................................................16

Procedure.........................................................................................................16

Replacing the Stand Assembly.................................................. 19

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

Removing the Back Cover..........................................................20

Prerequisites.................................................................................................... 20

Procedure........................................................................................................ 20

Replacing the Back Cover...........................................................21

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

Post-requisites................................................................................................. 21

Removing the Hard Drive...........................................................22

Prerequisites.....................................................................................................22

Procedure.........................................................................................................22

Replacing the Hard Drive........................................................... 25

Procedure.........................................................................................................25

Post-requisites................................................................................................. 25

Removing the Optical Drive...................................................... 26

Prerequisites.....................................................................................................26

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

Replacing the Optical Drive.......................................................28

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

Post-requisites.................................................................................................28

Removing the Memory Module(s)............................................29

Prerequisites.....................................................................................................29

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

Replacing the Memory Module(s)............................................ 32

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

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

Removing the Control-Buttons Board....................................35

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

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

Replacing the Control-Buttons Board....................................37

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

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

Removing the Converter Board................................................38

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

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

Replacing the Converter Board................................................40

Procedure........................................................................................................ 40

Post-requisites.................................................................................................40

Removing the System-Board Shield........................................ 41

Prerequisites.....................................................................................................41

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

Replacing the System-Board Shield........................................42

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

Post-requisites.................................................................................................42

Removing the Antenna............................................................... 43

Prerequisites.....................................................................................................43

Procedure........................................................................................................ 43

Replacing the Antenna................................................................45

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

Post-requisites.................................................................................................45

Removing the VESA-Mount Bracket....................................... 46

Prerequisites.................................................................................................... 46

Procedure........................................................................................................ 46

Replacing the VESA-Mount Bracket........................................47

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

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

Removing the Speaker Cover....................................................48

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

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

Replacing the Speaker Cover....................................................49

Procedure........................................................................................................ 49

Post-requisites.................................................................................................49

Removing the Microphone........................................................50

Prerequisites.................................................................................................... 50

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

Replacing the Microphone.........................................................52

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

Post-requisites................................................................................................. 52

Removing the Power-Adapter Port......................................... 53

Prerequisites.....................................................................................................53

Procedure.........................................................................................................53

Replacing the Power-Adapter Port..........................................55

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

Post-requisites................................................................................................. 55

Removing the Wireless Card..................................................... 56

Prerequisites.....................................................................................................56

Procedure........................................................................................................ 56

Replacing the Wireless Card......................................................58

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

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

Removing the Heat Sink............................................................. 59

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

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

Replacing the Heat Sink..............................................................61

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

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

Removing the Coin-Cell Battery.............................................. 62

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

Procedure........................................................................................................ 62

Replacing the Coin-Cell Battery.............................................. 64

Procedure........................................................................................................ 64

Post-requisites.................................................................................................64

Removing the Speakers.............................................................. 65

Prerequisites.....................................................................................................65

Procedure ....................................................................................................... 65

Replacing the Speakers...............................................................67

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

Post-requisites................................................................................................. 67

Removing the Fan........................................................................ 68

Prerequisites.................................................................................................... 68

Procedure........................................................................................................ 68

Replacing the Fan.........................................................................70

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

Post-requisites.................................................................................................70

Removing the System Board......................................................71

Prerequisites..................................................................................................... 71

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

Replacing the System Board......................................................74

Procedure.........................................................................................................74

Post-requisites................................................................................................. 74

Removing the Camera.................................................................75

Prerequisites.....................................................................................................75

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

Replacing the Camera................................................................. 81

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

Post-requisites.................................................................................................82

Flashing the BIOS......................................................................... 83

Getting Help and Contacting Dell........................................... 84

Self-Help Resources........................................................................................84

Contacting Dell................................................................................................84

Before Working Inside Your

Computer

CAUTION: To avoid damaging the components and cards, handle

them by their edges and avoid touching pins and contacts.

Before You Begin

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

2 Shut down your computer.

– Windows 8: Move your mouse pointer to the upper-right or lower-

right corner of the screen to open the charms sidebar, and then click

or tap Settings → Power → 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 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, make sure 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: 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 for complete information about

safety precautions, working inside your computer, and protecting

against electrostatic discharge.

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, make sure that the ports and connectors are correctly oriented

and aligned.

CAUTION: To disconnect a network cable, first unplug the cable from

your computer and then unplug the cable from the network device.

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

reader.

Recommended Tools

The procedures in this document may require the following tools:

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