Dell XPS 14Z (L412z): Contents

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Contents

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

Recommended Tools. . . . . . . . . . . . . . . . . . . . 7

Turning Off Your Computer

. . . . . . . . . . . . . . . . . 7

Before Working Inside Your Computer . . . . . . . . . . 8

2 Base Cover . . . . . . . . . . . . . . . . . . . . . . . 11

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

Replacing the Base Cover

. . . . . . . . . . . . . . . . 12

3 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Removing the Battery . . . . . . . . . . . . . . . . . . 15

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

4 Memory Module(s) . . . . . . . . . . . . . . . . . 17

Removing the Memory Module(s) . . . . . . . . . . . . 17

Replacing the Memory Module(s)

. . . . . . . . . . . . 18

Contents 3

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5 Wireless Mini-Card . . . . . . . . . . . . . . . . 21

Removing the Mini-Card . . . . . . . . . . . . . . . . . 21

Replacing the Mini-Card

. . . . . . . . . . . . . . . . . 23

6 Hard Drive . . . . . . . . . . . . . . . . . . . . . . . 25

Removing the Hard Drive . . . . . . . . . . . . . . . . 25

Replacing the Hard Drive

. . . . . . . . . . . . . . . . 28

7 Coin-Cell Battery . . . . . . . . . . . . . . . . . . 29

Removing the Coin-Cell Battery . . . . . . . . . . . . . 29

Replacing the Coin-Cell Battery . . . . . . . . . . . . . 30

8 Optical Drive . . . . . . . . . . . . . . . . . . . . . 31

Removing the Optical Drive . . . . . . . . . . . . . . . 31

Replacing the Optical Drive

. . . . . . . . . . . . . . . 33

9 Hall-Sensor Board . . . . . . . . . . . . . . . . . 35

Removing the Hall-Sensor Board . . . . . . . . . . . . 35

Replacing the Hall-Sensor Board . . . . . . . . . . . . 37

4 Contents

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10 Display-Converter Board. . . . . . . . . . . . . 39

Removing the Display-Converter Board. . . . . . . . . 39

Replacing the Display-Converter Board

. . . . . . . . 40

11 Heat Sink and Fan . . . . . . . . . . . . . . . . . . 41

Removing the Heat Sink and Fan . . . . . . . . . . . . 41

Replacing the Heat Sink and Fan

. . . . . . . . . . . . 42

12 System Board . . . . . . . . . . . . . . . . . . . . . 45

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

Replacing the System Board. . . . . . . . . . . . . . . 48

Entering the Service Tag in the BIOS

. . . . . . . . . . 49

13 Power-Button Board . . . . . . . . . . . . . . . . 51

Removing the Power-Button Board . . . . . . . . . . . 51

Replacing the Power-Button Board

. . . . . . . . . . . 52

14 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . 53

Removing the Keyboard Bracket . . . . . . . . . . . . 53

Replacing the Keyboard Bracket

. . . . . . . . . . . . 57

Removing the Keyboard

. . . . . . . . . . . . . . . . . 58

Replacing the Keyboard

. . . . . . . . . . . . . . . . . 59

Contents 5

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15 Speakers . . . . . . . . . . . . . . . . . . . . . . . . 61

Removing the Speakers . . . . . . . . . . . . . . . . . 61

Replacing the Speakers

. . . . . . . . . . . . . . . . . 64

16 Display . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Display Hinge Covers . . . . . . . . . . . . . . . . . . 65

Removing the Display Hinge Covers . . . . . . . . 65

Replacing the Display Hinge Covers . . . . . . . . 67

Display Assembly . . . . . . . . . . . . . . . . . . . . 68

Removing the Display Assembly . . . . . . . . . . 68

Replacing the Display Assembly . . . . . . . . . . 69

17 Palm-Rest Assembly . . . . . . . . . . . . . . . 71

Removing the Palm-Rest Assembly . . . . . . . . . . . 71

Replacing the Palm-Rest Assembly

. . . . . . . . . . . 72

18 Flashing the BIOS . . . . . . . . . . . . . . . . . 73

6 Contents

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1

Before You Begin

This manual provides procedures for removing and installing the components

in your computer. Unless otherwise noted, each procedure assumes that the

following conditions exist:

• You have performed the steps in "Turning Off Your Computer" on page 7

and "Before Working Inside Your Computer" on page 8.

• You have read the safety information that shipped with your computer

.

• A component can be replaced or—if purchased separately—installed by

performing the removal procedure in reverse order.

Recommended Tools

The procedures in this document may require the following tools:

• Small flat-blade screwdriver

•Phillips screwdriver

• BIOS executable update program available at

support.dell.com

Turning Off Your Computer

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

programs before you turn off your computer.

1

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

2

To shut down the operating system, click

Start

and then click

Shut

Down

.

3

Ensure that the computer is turned off. If your computer did not

automatically turn off when you shut down the operating system, press

and hold the power button until the computer turns off.

Before You Begin 7

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Before Working Inside Your Computer

Use the following safety guidelines to help protect your computer from

potential damage and to help to ensure your own 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

www.dell.com/regulatory_compliance.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist

grounding strap or by periodically touching an unpainted metal surface (such as

a connector on your computer).

CAUTION: Handle components and cards with care. Do not touch the components

or contacts on a card. Hold a card by its edges or by its metal mounting bracket.

Hold a component such as a processor by its edges, not by its pins.

CAUTION: Only a certified service technician should perform repairs on your

computer. Damage due to servicing that is not authorized by Dell is not covered by

your warranty.

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; if you are

disconnecting this type of cable, press in on the locking tabs before you

disconnect the cable. As you pull connectors apart, keep them evenly aligned to

avoid bending any connector pins. Also, before you connect a cable, ensure that

both connectors are correctly oriented and aligned.

CAUTION: To avoid damaging the computer, perform the following steps before

you begin working inside the computer.

1

Ensure that the work surface is flat and clean to prevent the computer

cover from being scratched.

2

Turn off your computer (see "Turning Off Your Computer" on page 7) and

all attached devices.

CAUTION: To disconnect a network cable, first unplug the cable from your

computer and then unplug the cable from the network device.

3

Disconnect all telephone or network cables from the computer.

4

Press and eject any installed cards from the Media Card Reader.

5

Disconnect your computer and all attached devices from their electrical

outlets.

8 Before You Begin

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6

Disconnect all attached devices from your computer.

7

Remove the battery (see "Removing the Battery" on page 15).

8

Turn the computer top-side up, open the display, and press the power

button to ground the system board.

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.

Before You Begin 9

1 screws (5) 2 battery

3 battery cable

Replacing the Battery

CAUTION: To avoid damage to the computer, use only the battery designed for

this particular Dell computer.

1

Follow the instructions in "Before You Begin" on page 7.

2

Place the battery on the palm-rest assembly.

3

Replace the five screws that secure the battery to the palm-rest assembly.

4

Connect the battery cable to the system-board connector.

5

Replace the base cover (see "Replacing the Base Cover" on page 12).

16 Battery

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4

Memory Module(s)

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

www.dell.com/regulatory_compliance.

CAUTION: Only a certified service technician should perform repairs on your

computer. Damage due to servicing that is not authorized by Dell is not covered by

your warranty.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist

grounding strap or by periodically touching an unpainted metal surface (such as

a connector on your computer).

CAUTION: To help prevent damage to the system board, remove the main battery

(see "Removing the Battery" on page 15) before working inside the computer.

You can increase your computer memory by installing memory modules on

the system board. See "Specifications" at support.dell.com/manuals for

information on the type of memory supported by your computer.

NOTE: Memory modules purchased from Dell are covered under your computer

warranty.

Your computer has two user-accessible SODIMM connectors. The primary

memory module can be accessed by removing the back cover. The secondary

memory module can be accessed by removing the system board.

Removing the Memory Module(s)

1

Follow the instructions in "Before You Begin" on page 7.

2

Remove the base cover (see "Removing the Base Cover" on page 11).

3

Remove the battery (see "Removing the Battery" on page 15).

CAUTION: To help prevent damage to the memory-module connector, do not use

tools to spread the memory module securing clips.

NOTE: To access the second memory module, remove the system board and turn it

over. To remove the system board, see "Removing the System Board" on page 45.

Memory Module(s) 17

4

Use your fingertips to carefully spread apart the securing clips on each end

of the memory-module connector until the memory module pops up.

1 memory-module connector 2 securing clips (2)

3 memory module

5

Remove the memory module from the memory-module connector.

Replacing the Memory Module(s)

1

Follow the instructions in "Before You Begin" on page 7.

2

Align the notch in the memory module with the tab in the

memory-module connector.

18 Memory Module(s)

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3

Slide the memory module firmly into the memory-module connector at a

45-degree angle, and press the memory module down until it clicks into

place. If you do not hear the click, remove the memory module and

reinstall it.

NOTE: Replace the system board after replacing the secondary memory

module. To replace the system board, see "Replacing the System Board" on

page 48.

NOTE: If the memory module is not installed properly, the computer may

not boot.

1 tab 2 notch

3 memory-module connector

4

Replace the battery (see "Replacing the Battery" on page 16).

5

Replace the base cover (see "Replacing the Base Cover" on page 12).

6

Connect the AC adapter to your computer and an electrical outlet.

CAUTION: Before turning on the computer, replace all screws and ensure that no

stray screws remain inside the computer. Failure to do so may result in damage to

the computer.

7

Turn on the computer.

Memory Module(s) 19

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As the computer boots, it detects the additional memory and automatically

updates the system configuration information.

To confirm the amount of memory installed in the computer:

Click Start Control PanelSystem.

20 Memory Module(s)

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5

Wireless Mini-Card

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

www.dell.com/regulatory_compliance.

CAUTION: Only a certified service technician should perform repairs on your

computer. Damage due to servicing that is not authorized by Dell is not covered

by your warranty.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist

grounding strap or by periodically touching an unpainted metal surface (such as

a connector on your computer).

CAUTION: To help prevent damage to the system board, remove the main battery

(see "Removing the Battery" on page 15) before working inside the computer.

NOTE: Dell does not guarantee compatibility or provide support for Mini-Cards

from sources other than Dell.

If you ordered a wireless Mini-Card with your computer, the card is already

installed.

Your computer has one half Mini-Card slot which supports a Wireless Local

Area Network (WLAN) + Bluetooth combo card.

NOTE: Depending on the configuration of the computer when it was sold, the

Mini-Card slot may or may not have a Mini-Card installed.

Removing the Mini-Card

1

Follow the instructions in "Before You Begin" on page 7.

2

Remove the base cover (see "Removing the Base Cover" on page 11).

3

Remove the battery (see "Removing the Battery" on page 15).

4

Disconnect the antenna cables from the Mini-Card.

5

Remove the screw that secures the Mini-Card to the system board.

Wireless Mini-Card 21

1 antenna cables (2) 2 Mini-Card

3 system-board connector 4 screw

6

Lift the Mini-Card out of the system-board connector.

22 Wireless Mini-Card

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CAUTION: When the Mini-Card is not in the computer, store it in protective

antistatic packaging. For more information, see "Protecting Against Electrostatic

Discharge" in the safety information that shipped with your computer.

Replacing the Mini-Card

1

Follow the instructions in "Before You Begin" on page 7.

2

Remove the new Mini-Card from its packaging.

CAUTION: Use firm and even pressure to slide the Mini-Card into place. If you

use excessive force, you may damage the connector.

CAUTION: The connectors are keyed to ensure correct insertion. If you feel

resistance, check the connectors on the Mini-Card and on the system board, and

realign the Mini-Card.

CAUTION: To avoid damage to the Mini-Card, never place cables under the

Mini-Card.

Wireless Mini-Card 23

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3

Insert the Mini-Card connector at a 45-degree angle into the system-board

connector.

4

Press the other end of the Mini-Card down into the slot on the system

board and replace the screw that secures the Mini-Card to the system

board.

5

Connect the appropriate antenna cables to the Mini-Card you are

installing.

Connectors on the Mini-Card Antenna Cable Color Scheme

WLAN + Bluetooth (2 antenna cables)

Main WLAN + Bluetooth (white triangle)

white

Auxiliary WLAN + Bluetooth (black triangle)

black

6

Replace the battery (see "Replacing the Battery" on page 16).

7

Replace the base cover (see "Replacing the Base Cover" on page 12).

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

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

to the computer.

8

Install the drivers and utilities for your Mini-Card, as required.

NOTE: If you are installing a Mini-Card from a source other than Dell, you must

install the appropriate drivers and utilities.

24 Wireless Mini-Card

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6

Hard Drive

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

www.dell.com/regulatory_compliance.

WARNING: If you remove the hard drive from the computer when the drive is hot,

do not touch

the metal housing of the hard drive.

CAUTION: Only a certified service technician should perform repairs on your

computer. Damage due to servicing that is not authorized by Dell is not covered by

your warranty.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist

grounding strap or by periodically touching an unpainted metal surface (such as a

connector on your computer).

CAUTION: To help prevent damage to the system board, remove the main battery

(see "Removing the Battery" on page 15) before working inside the computer.

CAUTION: To prevent data loss, turn off your computer (see "Turning Off Your

Computer" on page 7) before removing the hard drive. Do not remove the hard drive

while the computer is On or in Sleep state.

CAUTION: Hard drives are extremely fragile. Exercise care when handling the

hard drive.

NOTE: Dell does not guarantee compatibility or provide support for hard drives

from sources other than Dell.

NOTE: If you are installing a hard drive from a source other than Dell, you need to

install an operating system, drivers, and utilities on the new hard drive.

Removing the Hard Drive

1

Follow the instructions in "Before You Begin" on page 7.

2

Remove the base cover (see "Removing the Base Cover" on page 11).

3

Remove the battery (see "Removing the Battery" on page 15).

4

Remove the three screws that secure the hard-drive assembly to the

palm-rest assembly.

Hard Drive 25

1 screw 2 palm-rest assembly

3 bracket 4 tabs (3)

5 optical-drive assembly

6

Remove the two screws that secure the optical-drive bracket to the optical

drive.

7

Remove the optical-drive bracket from the optical drive.

32 Optical Drive

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1 screws

(

2

)

2 optical-drive bracket

3 optical drive

Replacing the Optical Drive

1

Follow the instructions in "Before You Begin" on page 7.

2

Place the optical-drive bracket in position.

3

Replace the two screws that secure the optical-drive bracket to the optical

drive.

4

Slide the optical-drive assembly into the bracket and tabs on the palm-rest

assembly.

5

Replace the screw that secures the optical-drive assembly to the palm-rest

assembly.

6

Replace the battery (see "Replacing the Battery" on page 16).

7

Replace the base cover (see "Replacing the Base Cover" on page 12).

CAUTION: Before turning on the computer, replace all screws and ensure that no

stray screws remain inside the computer. Failure to do so may result in damage to

the computer.

Optical Drive 33

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34 Optical Drive

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9

Hall-Sensor Board

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

www.dell.com/regulatory_compliance.

CAUTION: Only a certified service technician should perform repairs on your

computer. Damage due to servicing that is not authorized by Dell is not covered by

your warranty.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist

grounding strap or by periodically touching an unpainted metal surface (such as

a connector on your computer).

CAUTION: To help prevent damage to the system board, remove the main battery

(see "Removing the Battery" on page 15) before working inside the computer.

Removing the Hall-Sensor Board

1

Follow the instructions in "Before You Begin" on page 7.

2

Remove the base cover (see "Removing the Base Cover" on page 11).

3

Remove the battery (see "Removing the Battery" on page 15).

4

Remove the hard drive (see "Removing the Hard Drive" on page 25).

5

Without pulling hard on the sponge pad, carefully lift the sponge pad from

the inside edge of the computer.

Hall-Sensor Board 35

1 sponge pad

6

Lift the connector latch and pull the pull-tab to disconnect the

hall-sensor-board cable from the system-board connector.

7

Remove the screw that secures the hall-sensor board to the palm-rest

assembly.

8

Lift the hall-sensor board away from the palm-rest assembly.

36 Hall-Sensor Board

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1 screw 2 system-board connector

Replacing the Hall-Sensor Board

1

Follow the instructions in "Before You Begin" on page 7.

2

Align the screw hole on the hall-sensor board with the screw hole on the

palm-rest assembly.

3

Replace the screw that secures the hall-sensor board to the palm-rest

assembly.

4

Slide the hall-sensor-board cable into the system-board connector and

press down on the connector latch to secure the cable.

5

Adhere the sponge pad to the palm-rest assembly.

6

Replace the hard drive (see "Replacing the Hard Drive" on page 28).

7

Replace the battery (see "Replacing the Battery" on page 16).

8

Replace the base cover (see "Replacing the Base Cover" on page 12).

CAUTION: Before turning on the computer, replace all screws and ensure that no

stray screws remain inside the computer. Failure to do so may result in damage to

the computer.

Hall-Sensor Board 37

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38 Hall-Sensor Board

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10

Display-Converter Board

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

www.dell.com/regulatory_compliance.

CAUTION: Only a certified service technician should perform repairs on your

computer. Damage due to servicing that is not authorized by Dell is not covered by

your warranty.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist

grounding strap or by periodically touching an unpainted metal surface (such as a

connector on your computer).

CAUTION: To help prevent damage to the system board, remove the main battery

(see "Removing the Battery" on page 15) before working inside the computer.

Removing the Display-Converter Board

1

Follow the instructions in "Before You Begin" on page 7.

2

Remove the base cover (see "Removing the Base Cover" on page 11).

3

Remove the battery (see "Removing the Battery" on page 15).

4

Disconnect the display-converter-board cable from the system-board

connector.

5

Remove the two screws that secure the display-converter board to the

palm-rest assembly.

6

Without pulling hard on the display-converter board, carefully lift the

display-converter board and turn it over.

7

Disconnect the display-converter-board cable and the display cable from

the connectors on the display-converter board.

8

Lift the display-converter board out of the computer.

Display-Converter Board 39

1 system-board connector 2 screws (2)

3 display cable connector 4 display-converter board

Replacing the Display-Converter Board

1

Follow the instructions in "Before You Begin" on page 7.

2

Connect the display-converter-board cable, and the display cable to the

connectors on the display-converter board.

3

Align the screw holes on the display-converter board with the screw holes

on the palm-rest assembly.

4

Replace the two screws that secure the display-converter board to the

palm-rest assembly.

5

Connect the display-converter-board cable to the system-board connector.

6

Replace the battery (see "Replacing the Battery" on page 16).

7

Replace the base cover (see "Replacing the Base Cover" on page 12).

CAUTION: Before turning on the computer, replace all screws and ensure that no

stray screws remain inside the computer. Failure to do so may result in damage to

the computer.

40 Display-Converter Board

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11

Heat Sink and Fan

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

www.dell.com/regulatory_compliance.

WARNING: If you remove the heat sink from the computer when the heat sink is

hot,

do not touch

the metal housing of the heat sink.

CAUTION: Only a certified service technician should perform repairs on your

computer. Damage due to servicing that is not authorized by Dell is not covered by

your warranty.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist

grounding strap or by periodically touching an unpainted metal surface (such as a

connector on your computer).

CAUTION: To help prevent damage to the system board, remove the main battery

(see "Removing the Battery" on page 15) before working inside the computer.

Removing the Heat Sink and Fan

1

Follow the instructions in "Before You Begin" on page 7.

2

Remove the base cover (see "Removing the Base Cover" on page 11).

3

Remove the battery (see "Removing the Battery" on page 15).

4

Using your fingertips gently peel off the display cable tape from the

heat sink.

5

Disconnect the fan cable from the system-board connector.

6

In sequential order (indicated on the heat sink), remove the six screws that

secure the heat sink to the system board.

7

Lift the heat sink and fan away from the system board.

Heat Sink and Fan 41

1 system board 2 screws (5)

Replacing the System Board

1

Follow the instructions in "Before You Begin" on page 7.

2

Replace the memory module(s) (see "Replacing the Memory Module(s)"

on page 18).

3

Place the system board on the palm-rest assembly.

4

Replace the five screws that secure the system board to the palm-rest

assembly.

5

Slide the power-button board cable into the system-board connector and

press down on the connector latch to secure the cable.

6

Connect the display cable, ambient-light-sensor cable, and display-

converter board cable to the system-board connectors.

7

Adhere the tape over the network connector on the system board.

8

Connect the speaker cable to the system-board connector.

9

Slide the keyboard cable, touch-pad cable, keyboard-backlight cable, and

hall-sensor cable into the system board connectors and press down on the

connector latch to secure the cable.

48 System Board

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10

Adhere the pull-tab on the keyboard cable over the keyboard cable

connector on the system board.

11

Replace the heat sink and fan (see "Replacing the Heat Sink and Fan" on

page 42).

12

Replace the optical drive (see "Replacing the Optical Drive" on page 33).

13

Replace the coin-cell battery (see "Replacing the Coin-Cell Battery" on

page 30).

14

Replace the hard drive (see "Replacing the Hard Drive" on page 28).

15

Replace the Mini-Card (see "Replacing the Mini-Card" on page 23).

16

Replace the battery (see "Replacing the Battery" on page 16).

17

Replace the base cover (see "Replacing the Base Cover" on page 12).

18

Replace any blank or card you removed from the Media Card Reader.

CAUTION: Before turning on the computer, replace all screws and ensure that no

stray screws remain inside the computer. Failure to do so may result in damage to

the computer.

19

Turn on the computer.

NOTE: After you have replaced the system board, enter the computer Service Tag

in the BIOS of the replacement system board.

20

Enter the Service Tag (see "Entering the Service Tag in the BIOS" on

page 49).

Entering the Service Tag in the BIOS

1

Ensure that the AC adapter is plugged in and that the main battery is

installed properly.

2

Turn on the computer.

3

Press <F2> during POST to enter the System Setup program.

4

Navigate to the Security tab and enter the Service Tag in the

Set Service

Ta g

field.

System Board 49

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50 System Board

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13

Power-Button Board

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

www.dell.com/regulatory_compliance.

CAUTION: Only a certified service technician should perform repairs on your

computer. Damage due to servicing that is not authorized by Dell is not covered by

your warranty.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist

grounding strap or by periodically touching an unpainted metal surface (such as a

connector on your computer).

CAUTION: To help prevent damage to the system board, remove the main battery

(see "Removing the Battery" on page 15) before working inside the computer.

Removing the Power-Button Board

1

Follow the instructions in "Before You Begin" on page 7.

2

Remove the system board (see "Removing the System Board" on page 45).

3

Remove the two screws that secure the power-button board to the

palm-rest assembly.

4

Lift the power-button board along with the cable away from the palm-rest

assembly.

Power-Button Board 51

1 power-button board 2 screws (2)

Replacing the Power-Button Board

1

Follow the instructions in "Before You Begin" on page 7.

2

Use the alignment posts to place the power-button board on the palm-rest

assembly.

3

Replace the two screws that secure the power-button board to the

palm-rest assembly.

4

Replace the system board (see "Replacing the System Board" on page 48).

CAUTION: Before turning on the computer, replace all screws and ensure that no

stray screws remain inside the computer. Failure to do so may result in damage to

the computer.

52 Power-Button Board

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14

Keyboard

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

www.dell.com/regulatory_compliance.

CAUTION: Only a certified service technician should perform repairs on your

computer. Damage due to servicing that is not authorized by Dell is not covered by

your warranty.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist

grounding strap or by periodically touching an unpainted metal surface (such as a

connector on your computer).

CAUTION: To help prevent damage to the system board, remove the main battery

(see "Removing the Battery" on page 15) before working inside the computer.

Removing the Keyboard Bracket

1

Follow the instructions in "Before You Begin" on page 7.

2

Remove the system board (see "Removing the System Board" on page 45).

3

Remove the 18 screws that secure the keyboard bracket to the palm-rest

assembly.

Keyboard 53

book.book Page 54 Thursday, May 3, 2012 3:09 PM

4

Make a note of the speakers cable routing and remove the speaker cables

from the routing guides.

54 Keyboard

1 speakers cable

5

Make a note of the antenna cables routing and remove the antenna cables

from the routing guides.

Keyboard 55

book.book Page 55 Thursday, May 3, 2012 3:09 PM

1 antenna cables (2)

6

Lift the keyboard bracket off the palm-rest assembly.

56 Keyboard

book.book Page 56 Thursday, May 3, 2012 3:09 PM

1 keyboard bracket

Replacing the Keyboard Bracket

1

Follow the instructions in "Before You Begin" on page 7.

2

Place the keyboard bracket on the palm-rest assembly.

3

Replace the 18 screws that secure the keyboard bracket to the palm-rest

assembly.

4

Route the speakers cable and antenna cables through the routing guides.

5

Replace the system board (see "Replacing the System Board" on page 48).

Keyboard 57

book.book Page 57 Thursday, May 3, 2012 3:09 PM

1 speakers (2) 2 screws (2)

3 speakers cable

Replacing the Speakers

1

Follow the instructions in "Before You Begin" on page 7.

2

Place the speakers on the palm-rest assembly and route the speakers cable

through the routing guides.

3

Replace the two screws (one on each side) that secure the speakers to the

palm-rest assembly.

4

Route the antenna cables through the routing guides.

5

Replace the system board (see "Replacing the System Board" on page 48).

CAUTION: Before turning on the computer, replace all screws and ensure that no

stray screws remain inside the computer. Failure to do so may result in damage to

the computer.

64 Speakers

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16

Display

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

www.dell.com/regulatory_compliance.

CAUTION: Only a certified service technician should perform repairs on your

computer. Damage due to servicing that is not authorized by Dell is not covered by

your warranty.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist

grounding strap or by periodically touching an unpainted metal surface (such as a

connector on your computer).

CAUTION: To help prevent damage to the system board, remove the main battery

(see "Removing the Battery" on page 15) before working inside the computer.

Display Hinge Covers

Removing the Display Hinge Covers

1

Follow the instructions in "Before You Begin" on page 7.

2

Remove the system board (see "Removing the System Board" on page 45).

3

Push the eight tabs (four on each side) that secure the display hinge covers

to the palm-rest assembly.

Display 65

book.book Page 66 Thursday, May 3, 2012 3:09 PM

4

Turn the palm-rest assembly over.

5

Lift the display hinge covers off the palm-rest assembly.

66 Display

1 display hinge covers (2)

Replacing the Display Hinge Covers

1

Follow the instructions in "Before You Begin" on page 7.

2

Align the tabs on the display hinge covers with the slots on the palm-rest

assembly and snap the display hinge covers into place.

3

Replace the system board (see "Replacing the System Board" on page 48).

CAUTION: Before turning on the computer, replace all screws and ensure that no

stray screws remain inside the computer. Failure to do so may result in damage to

the computer.

Display 67

book.book Page 67 Thursday, May 3, 2012 3:09 PM

Display Assembly

Removing the Display Assembly

1

Follow the instructions in "Before You Begin" on page 7.

2

Remove the display hinge covers (see "Removing the Display Hinge

Covers" on page 65).

3

Remove the two screws that secure the display assembly to the palm-rest

assembly.

4

Carefully push the antenna cables, ambient-light-sensor cable, display

cable, and camera cable towards the top of the computer.

1 screws (2)

68 Display

book.book Page 68 Thursday, May 3, 2012 3:09 PM

5

Remove the four screws (two on each side) that secure the display

assembly to the palm-rest assembly.

6

Slide and lift the display assembly away from the palm-rest assembly.

1 palm-rest assembly 2 display assembly

3 screws (4)

Replacing the Display Assembly

1

Follow the instructions in "Before You Begin" on page 7.

2

Slide and place the display assembly on the palm-rest assembly.

3

Replace the four screws that secure the display assembly to the palm-rest

assembly.

Display 69

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book.book Page 70 Thursday, May 3, 2012 3:09 PM

4

Carefully route the antenna cables, ambient-light-sensor cable, display

cable, and camera cable towards the bottom of the computer.

5

Replace the two screws that secure the display assembly to the palm-rest

assembly.

6

Replace the display hinge covers (see "Replacing the Display Hinge

Covers" on page 67).

CAUTION: Before turning on the computer, replace all screws and ensure that no

stray screws remain inside the computer. Failure to do so may result in damage to

the computer.

70 Display

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17

Palm-Rest Assembly

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

www.dell.com/regulatory_compliance.

CAUTION: Only a certified service technician should perform repairs on your

computer. Damage due to servicing that is not authorized by Dell is not covered by

your warranty.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist

grounding strap or by periodically touching an unpainted metal surface (such as a

connector on your computer).

CAUTION: To help prevent damage to the system board, remove the main battery

(see "Removing the Battery" on page 15) before working inside the computer.

Removing the Palm-Rest Assembly

1

Follow the instructions in "Before You Begin" on page 7.

2

Remove the system board (see "Removing the System Board" on page 45).

3

Remove the keyboard (see "Removing the Keyboard" on page 58).

4

Remove the speakers (see "Removing the Speakers" on page 61).

5

Remove the power-button board (see "Removing the Power-Button Board"

on page 51).

6

Remove the display-converter board (see "Removing the Display-

Converter Board" on page 39).

7

Remove the hall-sensor board (see "Removing the Hall-Sensor Board" on

page 35).

8

Remove the display assembly (see "Removing the Display Assembly" on

page 68).

9

Lift the display assembly off the palm-rest assembly.

CAUTION: Carefully separate the palm-rest assembly from the display assembly

to avoid damage to the display assembly.

Palm-Rest Assembly 71

book.book Page 72 Thursday, May 3, 2012 3:09 PM

Replacing the Palm-Rest Assembly

1

Follow the instructions in "Before You Begin" on page 7.

2

Replace the display assembly (see "Replacing the Display Assembly" on

page 69).

3

Replace the hall-sensor board (see "Replacing the Hall-Sensor Board" on

page 37).

4

Replace the display-converter board (see "Replacing the Display-Converter

Board" on page 40).

5

Replace the power-button board (see "Replacing the Power-Button Board"

on page 52).

6

Replace the speakers (see "Replacing the Speakers" on page 64).

7

Replace the keyboard (see "Replacing the Keyboard" on page 59).

8

Replace the system board (see "Replacing the System Board" on page 48).

CAUTION: Before turning on the computer, replace all screws and ensure that no

stray screws remain inside the computer. Failure to do so may result in damage to

the computer.

72 Palm-Rest Assembly

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18

Flashing the BIOS

The BIOS may require flashing when an update is available or when replacing

the system board. To flash the BIOS:

1

Turn on the computer.

2

Go to

support.dell.com/support/downloads

.

3

Locate the BIOS update file for your computer:

NOTE: The Service Tag for your computer is located on a label at the bottom

of your computer.

If you have your computer’s Service Tag:

a

Click

Enter a Tag

.

b

Enter your computer’s Service Tag in the

Enter a service tag:

field,

click

Go

, and proceed to step 4.

If you do not have your computer’s Service Tag:

a

Click

Select Model.

b

Select the type of product in the

Select Your Product Family

list.

c

Select the product brand in the

Select Your Product Line

list.

d

Select the product model number in the

Select Your Product Model

list.

NOTE: If you have selected a different model and want to start over again,

click Start Over on the top right of the menu.

e

Click

Confirm

.

4

A list of results appears on the screen. Click

BIOS

.

5

Click

Download Now

to download the latest BIOS file.



The

File Download

window appears.

Flashing the BIOS 73