Dell Inspiron 7548 Manual de usuario

Inspiron 15

7000 Series

Service Manual

Computer Model: Inspiron 7548

Regulatory Model: P41F

Regulatory Type: P41F001

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 - 11

Rev. A00

Contents

Before Working Inside Your Computer................................... 7

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

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

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

After Working Inside Your Computer....................................10

Removing the Base Cover........................................................ 11

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

Replacing the Base Cover........................................................ 13

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

Removing the Battery...............................................................14

Prerequisites.....................................................................................................14

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

Replacing the Battery............................................................... 16

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

Post-requisites................................................................................................. 16

Removing the Hard Drive.........................................................17

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

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

Replacing the Hard Drive......................................................... 19

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

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

Removing the Memory Module(s)..........................................20

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

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

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

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

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

Removing the Wireless Card...................................................24

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

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

Replacing the Wireless Card................................................... 26

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

Post-requisites.................................................................................................26

Removing the Coin-Cell Battery.............................................27

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

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

Replacing the Coin-Cell Battery.............................................29

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

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

Removing the Power-Adapter Port....................................... 30

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

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

Replacing the Power-Adapter Port........................................32

Procedure.........................................................................................................32

Post-requisites................................................................................................. 32

Removing the Power-Status Light Board............................. 33

Prerequisites.....................................................................................................33

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

Replacing the Power-Status Light Board..............................35

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

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

Removing the Processor Fan.................................................. 36

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

Procedure........................................................................................................ 36

Replacing the Processor Fan...................................................38

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

Post-requisites.................................................................................................38

Removing the Video-Card Fan................................................39

Prerequisites.....................................................................................................39

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

Replacing the Video-Card Fan................................................42

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

Post-requisites.................................................................................................42

Removing the Heat Sink...........................................................43

Prerequisites.....................................................................................................43

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

Replacing the Heat Sink...........................................................45

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

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

Removing the Speakers............................................................46

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

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

Replacing the Speakers............................................................48

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

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

Removing the Display Assembly............................................ 49

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

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

Replacing the Display Assembly............................................. 52

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

Post-requisites................................................................................................. 52

Removing the System Board................................................... 53

Prerequisites.....................................................................................................53

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

Replacing the System Board................................................... 56

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

Post-requisites.................................................................................................56

Removing the Palm Rest and Keyboard................................ 57

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

Replacing the Palm Rest and Keyboard................................60

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

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

Flashing the BIOS.......................................................................61

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: 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 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, 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.

Recommended Tools

The procedures in this document may require the following tools:

• Philips screwdriver

• Plastic scribe

After Working Inside Your

Computer

CAUTION: Leaving stray or loose screws inside your computer may

severely damage your computer.

1 Replace all screws and make sure that no stray screws remain inside your

computer.

2 Connect any external devices, peripherals, and cables you removed

before working on your computer.

3 Replace any media cards, discs, and any other part(s) 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.

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