Dell Inspiron 3521 User manual

Dell Inspiron 3521/5521

Owner’s Manual

Computer model: Inspiron 3521/5521

Regulatory model: P28F

Regulatory type: P28F001

OM_Book.book Page 1 Tuesday, November 20, 2012 12:43 PM

Notes, Cautions, and Warnings

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

use of your computer.

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

data if instructions are not followed.

WARNING: A WARNING indicates a potential for property damage,

personal injury, or death.

____________________

Trademarks used in this text: Dell™, the DELL logo, and Inspiron™are trademarks of Dell Inc.;

Microsoft®, Windows®, and the Windows start button logo are either trademarks or registered

trademarks of Microsoft Corporation in the United States and/or other countries; Bluetooth®

is a registered trademark owned by Bluetooth SIG, Inc. and is used by Dell under license.

2012 - 11 Rev. A00

OM_Book.book Page 2 Tuesday, November 20, 2012 12:43 PM

Contents | 3

Contents

1 Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . 7

Turn Off Your Computer and Connected Devices . . . 7

Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . 7

Recommended Tools. . . . . . . . . . . . . . . . . . . . . . 8

2 After Working Inside Your Computer. . . . . . . . 9

3 Removing the Battery . . . . . . . . . . . . . . . . . . . 11

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4 Replacing the Battery . . . . . . . . . . . . . . . . . . . 13

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5 Removing the Memory Module(s) . . . . . . . . . 15

Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

6 Replacing the Memory Module(s). . . . . . . . . . 17

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

Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . 17

7 Removing the Optical-Drive Assembly . . . . . 19

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

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

8 Replacing the Optical-Drive Assembly . . . . . 21

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

Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . 21

9 Removing the Hard-Drive Assembly . . . . . . . 23

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

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

10 Replacing the Hard-Drive Assembly. . . . . . . . 25

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

Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . 25

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4| Contents

11 Removing the Keyboard . . . . . . . . . . . . . . . . . 27

Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

12 Replacing the Keyboard . . . . . . . . . . . . . . . . . 29

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

Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . 29

13 Removing the Palm-Rest. . . . . . . . . . . . . . . . . 31

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

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

14 Replacing the Palm-Rest . . . . . . . . . . . . . . . . . 35

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

Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . 35

15 Removing the Wireless Mini-Card . . . . . . . . . 37

Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

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

16 Replacing the Wireless Mini-Card . . . . . . . . . 39

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . 40

17 Removing the I/O Board . . . . . . . . . . . . . . . . . 41

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

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

18 Replacing the I/O Board . . . . . . . . . . . . . . . . . 43

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

Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . 43

19 Removing the System Board . . . . . . . . . . . . . . 45

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

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

20 Replacing the System Board . . . . . . . . . . . . . . 49

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

Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Entering the Service Tag in system setup . . . . . . . . 49

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Contents | 5

21 Removing the Coin-Cell Battery. . . . . . . . . . . 51

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

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

22 Replacing the Coin-Cell Battery . . . . . . . . . . . 53

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

Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . 53

23 Removing the Heat-Sink . . . . . . . . . . . . . . . . . 55

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

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

24 Replacing the Heat-Sink . . . . . . . . . . . . . . . . . 57

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

Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . 57

25 Removing the Fan . . . . . . . . . . . . . . . . . . . . . . 59

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

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

26 Replacing the Fan. . . . . . . . . . . . . . . . . . . . . . . 61

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

Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . 61

27 Removing the Speakers . . . . . . . . . . . . . . . . . . 63

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

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

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

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

Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . 67

29 Removing the Display Assembly . . . . . . . . . . . 69

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

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

30 Replacing the Display Assembly . . . . . . . . . . . 73

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

Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . 73

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6| Contents

31 Removing the Display Bezel . . . . . . . . . . . . . . 75

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

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

32 Replacing the Display Bezel . . . . . . . . . . . . . . 77

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

Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . 77

33 Removing the Display Hinges . . . . . . . . . . . . . 79

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

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

34 Replacing the Display Hinges . . . . . . . . . . . . . 81

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

Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . 81

35 Removing the Display Panel . . . . . . . . . . . . . . 83

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

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

36 Replacing the Display Panel . . . . . . . . . . . . . . 87

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . 87

37 Removing the Camera Module . . . . . . . . . . . . 89

Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

38 Replacing the Camera Module . . . . . . . . . . . . 91

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . 91

39 Flashing the BIOS . . . . . . . . . . . . . . . . . . . . . . . 93

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Before You Begin | 7

Before You Begin

Turn Off Your Computer and Connected Devices

CAUTION: To avoid losing data, save and close all open files and exit all open

programs before you turn off your computer.

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

2Follow the instructions to shut down your computer based on the operating system

installed on 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 Settings→Power→Shutdown.

•Windows 7:

Click Start and click Shut down.

Microsoft Windows shuts down and then the computer turns off.

NOTE: If you are using a different operating system, see the documentation

of your operating system for shut-down instructions.

3Disconnect your computer and all attached devices from their electrical outlets.

4Disconnect all telephone cables, network cables, and attached devices from your

computer.

5Press and hold the power button for 5 seconds, after the computer is unplugged, to

ground the system board.

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 additional safety best practices

information, see the Regulatory Compliance Homepage 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, 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.

OM_Book.book Page 7 Tuesday, November 20, 2012 12:43 PM

8| Before You Begin

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, ensure that the connectors and ports

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:

•Phillips screwdriver

•Plastic scribe

OM_Book.book Page 8 Tuesday, November 20, 2012 12:43 PM

After Working Inside Your Computer | 9

After Working Inside Your Computer

After you complete the replacement procedures, ensure the following:

•Replace all screws and ensure that no stray screws remain inside your computer.

•Connect any external devices, cables, cards, and any other part(s) you removed

before working on your computer.

•Connect your computer and all attached devices to their electrical outlets.

CAUTION: Before turning on your computer, replace all screws and ensure

that no stray screws remain inside the computer. Failure to do so may damage

your computer.

OM_Book.book Page 9 Tuesday, November 20, 2012 12:43 PM

10 | After Working Inside Your Computer

OM_Book.book Page 10 Tuesday, November 20, 2012 12:43 PM

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