Dell Inspiron 20 3000 Series Manual de usuario

Inspiron 20 3000

Service Manual

Computer Model: Inspiron 20–3052

Regulatory Model: W15B

Regulatory Type: W15B002

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.

the United States and/or other jurisdictions. All other marks and names mentioned herein

may be trademarks of their respective companies.

2016 - 08

Rev. A01

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

System-board components......................................................................14

Removing the stand..................................................... 16

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

Replacing the stand......................................................18

Procedure................................................................................................18

Replacing the optical drive........................................... 19

Prerequisites............................................................................................19

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

Removing the optical drive.......................................... 22

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

Post-requisites........................................................................................22

Removing the back cover............................................ 23

Prerequisites........................................................................................... 23

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

Replacing the back cover.............................................25

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

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

Removing the hard drive..............................................26

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

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

Replacing the hard drive.............................................. 29

Procedure............................................................................................... 29

Post-requisites........................................................................................29

Removing the memory module.....................................30

Prerequisites........................................................................................... 30

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

Replacing the memory module.....................................32

Procedure............................................................................................... 32

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

Removing the wireless card......................................... 35

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

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

Replacing the wireless card..........................................37

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

Post-requisites........................................................................................38

Removing the control-buttons board...........................40

Prerequisites........................................................................................... 40

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

Replacing the control-buttons board........................... 42

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

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

Removing the microphone........................................... 43

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

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

Replacing the microphone........................................... 45

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

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

Removing the system-board shield..............................46

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

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

Replacing the system-board shield.............................. 48

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

Post-requisites........................................................................................48

Removing the camera.................................................. 49

Prerequisites........................................................................................... 49

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

Replacing the camera.................................................. 53

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

Post-requisites........................................................................................53

Removing the coin-cell battery....................................54

Prerequisites........................................................................................... 54

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

Replacing the coin-cell battery.................................... 56

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

Post-requisites........................................................................................56

Removing the fan.........................................................57

Prerequisites........................................................................................... 57

Procedure............................................................................................... 57

Replacing the fan.........................................................59

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

Post-requisites........................................................................................59

Removing the heat sink............................................... 60

Prerequisites...........................................................................................60

Procedure............................................................................................... 60

Replacing the heat sink................................................62

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

Post-requisites........................................................................................62

Removing the speakers................................................63

Prerequisites........................................................................................... 63

Procedure............................................................................................... 63

Replacing the speakers................................................65

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

Post-requisites........................................................................................65

Removing the system board........................................ 66

Prerequisites...........................................................................................66

Procedure............................................................................................... 66

Replacing the system board.........................................69

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

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

Removing the display cable.......................................... 71

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

Procedure................................................................................................ 71

Replacing the display cable.......................................... 73

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

Post-requisites........................................................................................ 73

Removing the display assembly....................................74

Prerequisites........................................................................................... 74

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

Replacing the display assembly....................................78

Procedure............................................................................................... 78

Post-requisites........................................................................................ 78

Removing the rubber feet............................................80

Prerequisites...........................................................................................80

Procedure............................................................................................... 80

Replacing the rubber feet............................................ 82

Procedure............................................................................................... 82

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

BIOS setup program.................................................... 83

BIOS Overview........................................................................................83

Entering BIOS setup program................................................................. 83

Clearing Forgotten Passwords................................................................84

Prerequisites..................................................................................... 84

Procedure......................................................................................... 84

Post-requisites..................................................................................85

Clearing CMOS Settings.........................................................................85

Prerequisites.....................................................................................85

Procedure......................................................................................... 85

Post-requisites..................................................................................86

Flashing the BIOS........................................................ 87

Before working inside your

computer

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.

The shut-down instruction varies depending on the operating system installed on

your computer.

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

– Windows 8.1: On the Start screen, click the power icon → Shut down.

– Windows 7: Click 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 scratches on 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 electrical outlet.

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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