Dell Inspiron 20 3000 Series Bedienungsanleitung

Inspiron 20

3000 Series

Service Manual

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.

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.

Updated - 2016 - 03

Rev. A00

Contents

1 Before working inside your computer......................................... 8

Before you begin ....................................................................................8

Safety instructions...................................................................................9

Recommended tools............................................................................10

2 After working inside your computer.......................................... 11

3 Technical overview........................................................................12

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

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

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

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

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

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

6 Removing the back cover.............................................................19

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

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

7 Replacing the back cover............................................................. 21

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

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

8 Removing the battery................................................................... 22

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

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

9 Replacing the battery....................................................................25

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

3000 Series 3

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

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

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

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

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

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

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

12 Removing the memory module.................................................31

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

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

13 Replacing the memory module.................................................33

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

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

14 Removing the system-board shield......................................... 35

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

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

15 Replacing the system-board shield..........................................37

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

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

16 Removing the wireless card...................................................... 38

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

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

17 Replacing the wireless card.......................................................40

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

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

3000 Series 4

18 Removing the control-buttons board.....................................42

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

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

19 Replacing the control-buttons board..................................... 44

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

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

20 Removing the microphone....................................................... 45

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

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

21 Replacing the microphone........................................................ 47

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

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

22 Removing the camera................................................................ 48

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

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

23 Replacing the camera................................................................. 51

Procedure................................................................................................51

Post-requisites....................................................................................... 51

24 Removing the coin-cell battery................................................52

Prerequisites...........................................................................................52

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

25 Replacing the coin-cell battery................................................ 54

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

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

26 Removing the heat sink..............................................................55

3000 Series 5

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

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

27 Replacing the heat sink.............................................................. 57

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

Post-requisites....................................................................................... 57

28 Removing the speakers..............................................................58

Prerequisites...........................................................................................58

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

29 Replacing the speakers.............................................................. 60

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

Post-requisites.......................................................................................60

30 Removing the system board......................................................61

Prerequisites........................................................................................... 61

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

31 Replacing the system board...................................................... 64

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

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

32 Removing the display cable...................................................... 66

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

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

33 Replacing the display cable.......................................................68

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

Post-requisites.......................................................................................68

34 Removing the display assembly............................................... 69

Prerequisites...........................................................................................69

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

3000 Series 6

35 Replacing the display assembly................................................ 73

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

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

36 Removing the rubber feet..........................................................75

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

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

37 Replacing the rubber feet...........................................................77

Procedure................................................................................................77

Post-requisites....................................................................................... 77

38 BIOS setup program....................................................................78

Overview................................................................................................. 78

Entering BIOS setup program.............................................................78

Clearing forgotten passwords............................................................ 79

Prerequisites....................................................................................79

Procedure........................................................................................ 79

Post-requisites............................................................................... 80

Clearing CMOS settings...................................................................... 80

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

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

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

39 Flashing the BIOS........................................................................ 82

3000 Series 7

Before working inside your

computer

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

on the configuration you ordered.

Topics:

• Before you begin

• Safety instructions

• Recommended tools

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.

Before working inside your computer 8

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.

Before working inside your computer 9

Recommended tools

The procedures in this document may require the following tools:

• Phillips screwdriver

• Plastic scribe

Before working inside your computer 10

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