Dell Inspiron 3656 Manuel utilisateur

Inspiron 3656

Service Manual

Computer Model: Inspiron 3656

Regulatory Model: D19M

Regulatory Type: D19M001

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.................................................................................... 9

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

After working inside your computer..............................12

Technical overview.......................................................13

System board components...................................................................... 13

Removing the computer cover .................................... 15

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

Replacing the computer cover .....................................16

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

Removing the front bezel ............................................ 17

Prerequisites............................................................................................ 17

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

Replacing the front bezel............................................. 19

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

Post-requisites.........................................................................................19

Removing the memory modules...................................20

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

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

Replacing the memory modules................................... 23

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

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

Removing the graphics card........................................ 26

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

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

Replacing the graphics card.........................................29

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

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

Removing the 3.5-inch hard drive................................30

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

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

Replacing the 3.5-inch hard drive................................ 35

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

Post-requisites........................................................................................35

Removing the 2.5-inch hard drives.............................. 36

Prerequisites........................................................................................... 36

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

Replacing the 2.5-inch hard drives.............................. 40

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

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

Replacing the optical drive........................................... 41

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

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

Removing the optical drive.......................................... 46

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

Post-requisites........................................................................................46

Removing the coin-cell battery.................................... 47

Prerequisites........................................................................................... 47

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

Replacing the coin-cell battery....................................50

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

Post-requisites........................................................................................50

Removing the wireless card..........................................51

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

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

Replacing the wireless card......................................... 54

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

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

Removing the antenna modules...................................56

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

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

Replacing the antenna modules................................... 59

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

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

Removing the power-button module............................60

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

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

Replacing the power-button module............................63

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

Post-requisites........................................................................................63

Removing the chassis fan............................................ 64

Prerequisites........................................................................................... 64

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

Replacing the chassis fan............................................ 68

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

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

Removing the front-panel light board.......................... 69

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

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

Replacing the front-panel light board...........................73

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

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

Removing the power-supply unit..................................74

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

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

Replacing the power-supply unit..................................78

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

Postrequisites..........................................................................................78

Removing the processor fan........................................ 79

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

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

Replacing the processor fan........................................ 82

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

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

Removing the heat sink................................................83

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

Procedure............................................................................................... 83

Replacing the heat sink................................................85

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

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

Removing the system board........................................ 86

Prerequisites........................................................................................... 86

Procedure............................................................................................... 86

Replacing the system board.........................................89

Procedure............................................................................................... 89

Post-requisites........................................................................................89

BIOS setup program.................................................... 90

Overview................................................................................................ 90

Entering BIOS setup program................................................................. 90

Clearing Forgotten Passwords.................................................................91

Prerequisites......................................................................................91

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

Post-requisites..................................................................................92

Clearing CMOS Settings......................................................................... 93

Prerequisites..................................................................................... 93

Procedure......................................................................................... 93

Post-requisites..................................................................................94

Flashing the BIOS........................................................95

Getting help and contacting Dell..................................96

Self-help resources................................................................................. 96

Contacting Dell........................................................................................97

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.

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.

Recommended tools

The procedures in this document may require the following tools:

• Phillips screwdriver

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