Dell Inspiron 14 7000 Series Bedienungsanleitung

Inspiron 14

7000 Series

Service Manual

Computer Model: Inspiron 7447

Regulatory Model: P55G

Regulatory Type: P55G001

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.

2014 - 07

Rev. A00

Contents

Before Working Inside Your Computer...................................9

Before You Begin .............................................................................................. 9

Safety Instructions............................................................................................. 9

Recommended Tools................................................................ 11

After Working Inside Your Computer.................................... 12

Removing the Battery............................................................... 13

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

Replacing the Battery............................................................... 14

Procedure.........................................................................................................14

Removing the Base Cover........................................................16

Prerequisites.....................................................................................................16

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

Replacing the Base Cover........................................................ 17

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

Post-requisites..................................................................................................17

Removing the Optical Drive.................................................... 18

Prerequisites.....................................................................................................18

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

Replacing the Optical Drive.....................................................21

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

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

Removing the Memory Module(s)..........................................22

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

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

Replacing the Memory Module(s).......................................... 24

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

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

Removing the Hard Drive.........................................................26

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

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

Replacing the Hard Drive.........................................................29

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

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

Removing the Keyboard.......................................................... 30

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

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

Replacing the Keyboard...........................................................33

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

Post-requisites................................................................................................. 33

Folding the Keyboard Cables.......................................................................... 33

Removing the Wireless Card................................................... 37

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

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

Replacing the Wireless Card................................................... 39

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

Post-requisites.................................................................................................39

Removing the Palm Rest..........................................................40

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

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

Replacing the Palm Rest.......................................................... 45

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

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

Removing the Coin-Cell Battery............................................ 46

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

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

Replacing the Coin-Cell Battery............................................ 48

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

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

Removing the I/O Board..........................................................49

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

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

Replacing the I/O Board...........................................................51

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

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

Removing the Fan......................................................................52

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

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

Replacing the Fan......................................................................54

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

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

Removing the System Board................................................... 55

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

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

Replacing the System Board................................................... 59

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

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

Entering the Service Tag in the BIOS..............................................................60

Removing the Heat Sink...........................................................61

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

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

Replacing the Heat Sink...........................................................63

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

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

Removing the Power-Adapter Port....................................... 64

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

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

Replacing the Power-Adapter Port........................................66

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

Post-requisites.................................................................................................66

Removing the Display Assembly.............................................67

Prerequisites.....................................................................................................67

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

Replacing the Display Assembly.............................................70

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

Post-requisites.................................................................................................70

Removing the Display Bezel.................................................... 71

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

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

Replacing the Display Bezel.................................................... 73

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

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

Removing the Display Panel....................................................74

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

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

Replacing the Display Panel.................................................... 78

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

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

Removing the Display Hinge and Bracket Assembly.......... 79

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

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

Replacing the Display Hinge and Bracket Assembly...........81

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

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

Removing the Camera..............................................................82

Prerequisites.................................................................................................... 82

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

Replacing the Camera..............................................................84

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

Post-requisites.................................................................................................84

Removing the Speakers............................................................85

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

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

Replacing the Speakers............................................................ 87

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

Post-requisites................................................................................................. 87

Flashing the BIOS...................................................................... 88

Getting Help and Contacting Dell......................................... 89

Self-Help Resources........................................................................................89

Contacting Dell................................................................................................89

Before Working Inside Your

Computer

CAUTION: To avoid damaging the components and cards, handle

them by their edges and avoid touching pins and contacts.

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.

– 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.

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 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, make sure 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: 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, make sure that the ports and connectors 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.

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