Dell Inspiron 3662 Manuale utente

Inspiron 3662

Service Manual

Computer Model: Inspiron 3662

Regulatory Model: D20M

Regulatory Type: D20M002

Notes, cautions, and warnings

NOTE: A NOTE indicates important information that helps you make

better use of your product.

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.

trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be

trademarks of their respective owners.

2016 - 12

Rev. A00

Contents

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

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

After working inside your computer...............................9

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

Recommended tools.....................................................12

Screw list..................................................................... 13

Inside view of your computer........................................14

System board components...........................................15

Removing the computer cover .....................................17

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

Replacing the computer cover .....................................19

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

Removing the front bezel ............................................20

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

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

Replacing the front bezel.............................................23

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

Post-requisites........................................................................................23

Removing the memory modules...................................24

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

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

Replacing the memory modules................................... 27

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

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

Removing the 3.5-inch hard drive................................29

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

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

Replacing the 3.5-inch hard drive................................ 34

Procedure............................................................................................... 34

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

Removing the optical drive.......................................... 35

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

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

Replacing the optical drive...........................................40

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

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

Removing the coin-cell battery.....................................41

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

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

Replacing the coin-cell battery.................................... 44

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

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

Removing the wireless card......................................... 45

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

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

Replacing the wireless card......................................... 48

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

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

Removing the antenna modules...................................50

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

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

Replacing the antenna modules................................... 53

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

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

Removing the power-button module............................54

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

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

Replacing the power-button module............................57

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

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

Removing the processor fan........................................ 58

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

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

Replacing the processor fan.........................................61

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

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

Removing the processor heat-sink...............................62

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

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

Replacing the processor heat-sink...............................64

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

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

Removing the front I/O-panel..................................... 65

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

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

Replacing the front I/O-panel......................................68

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

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

Removing the system board........................................ 69

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

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

Replacing the system board.........................................72

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

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

BIOS setup program.................................................... 73

BIOS overview........................................................................................ 73

Entering BIOS setup program..................................................................73

Clearing Forgotten Passwords................................................................ 73

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

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

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

Clearing CMOS Settings......................................................................... 75

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

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

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

Flashing the BIOS........................................................ 78

Getting help and contacting Dell..................................79

Self-help resources................................................................................. 79

Contacting Dell........................................................................................79

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. Click Start → Power → 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 attached network devices and peripherals, such as keyboard,

mouse, and monitor from your computer.

5 Remove any media card and optical disc from your computer, if applicable.

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

to ground the system board.

After working inside your

computer

CAUTION: Leaving stray or loose screws inside your computer may severely

damage your computer.

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

2 Connect any external devices, peripherals, or cables you removed before

working on your computer.

3 Replace any media cards, discs, or any other parts that you removed before

working on your computer.

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

5 Turn on your computer.

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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