Dell Latitude ATG D620 Manual de usuario

Dell™Latitude™ATGD620ServiceManual

Notes, Notices, and Cautions

Information in this document is subject to change without notice.

©2007DellInc.Allrightsreserved.

Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.

Trademarks used in this text: Dell, the DELL logo, and Latitude are trademarks of Dell Inc.; Microsoft and Windows are registered trademarks of Microsoft Corporation; Bluetooth is a

registered trademark owned by Bluetooth SIG, Inc. and is used by Dell under license.

Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any

proprietary interest in trademarks and trade names other than its own.

Model PP18L

January 2007 Rev. A00

Before You Begin

Media Bay Devices

Hard Drive

Hinge Cover

Keyboard

Memory

Display Assembly

Internal Card With Bluetooth®Wireless Technology

Communications Cards

Coin-Cell Battery

Palm Rest

Modem

Processor Thermal-Cooling Assembly

Processor

Speaker

PC Card Reader

System Board

Fan

Base

Flashing the BIOS

NOTE: A NOTE indicates important information that helps you make better use of your computer.

NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.

CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death.

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Base

Dell™Latitude™ATGD620ServiceManual



1. Follow the instructions in Before You Begin.



2. Remove the system board (see System Board).



3. Remove the fan (see Fan).

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

CAUTION: Before working inside your computer, follow the safety instructions in the Product Information Guide.

CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of

your computer's electronic components. You can do so by touching an unpainted metal surface.

NOTE: If the base has the improved K-Lock, the K-Lock is held down with a screw. Remove and discard the screw when installing this base, as the

screw is not needed.

K-Lock assembly

base

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Before You Begin

Dell™Latitude™ATGD620ServiceManual

Recommended Tools

Turning Off Your Computer

Before Working Inside Your Computer

This document provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes the

following:

lYou have performed the steps in Turning Off Your Computer and Before Working Inside Your Computer.

lYou have read the safety information in the Product Information Guide.

lA component can be replaced by performing the removal procedure in reverse order.

Recommended Tools

The procedures in this document may require the following tools:

lSmall flat-blade screwdriver

lPhillips screwdriver

lSmall plastic scribe

l5-mm hex nut driver

lFlash BIOS-update program CD

lProcessor extraction tool

Turning Off Your Computer



1. Shut down the operating system:

a. Save and close any open files and exit any open programs

b. Click Start®Shut Down®Shut down.

The computer turns off after the operating system shutdown process finishes.



2. Ensure that the computer and any attached devices are turned off. If your computer and attached devices do not automatically turn off when you shut

down your operating system, press and hold the power button for 4 seconds.

Before Working Inside Your Computer

Use the following safety guidelines to help protect your computer from potential damage and to help ensure your own personal safety.



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).

NOTICE: To avoid losing data, save and close any open files and exit any open programs before you turn off your computer.

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

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.

NOTICE: 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.

NOTICE: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables have a connector 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.

NOTICE: To avoid damaging the computer, perform the following steps before you begin working inside the computer.



3. Disconnect any telephone, network, and USB cables from the computer.



4. Disconnect your computer and all attached devices from their electrical outlets.



5. Turn over the computer.



6. Remove the battery:

a. Slide the two battery-bay latch releases on the bottom of the computer toward the sides of the computer until they are engaged.

b. Grasp the battery by the battery tab and slide the battery horizontally toward the front of the computer.

c. Lift to remove the battery from the bay.



7. Press the power button to ground the system board.



8. Remove any PC Card or ExpressCard, if installed, from the PC Card slot.

Back to Contents Page



NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network device.

NOTICE: To avoid damaging the system board, you must remove the main battery before you service the computer.

battery

battery-bay latch releases (2)

battery tab

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Flashing the BIOS

Dell™Latitude™ATGD620ServiceManual

Flashing the BIOS From a CD

Flashing the BIOS From the Hard Drive

If a BIOS-update program CD is provided with the new system board, flash the BIOS from the CD. If you do not have a BIOS-update program CD, flash the

BIOS from the hard drive.

Flashing the BIOS From a CD



1. Ensure that the AC adapter is plugged in and that the main battery is installed properly.



2. Insert the BIOS-update program CD, and restart the computer.

Follow the instructions that appear on the screen. The computer continues to boot and updates the new BIOS. When the flash update is complete, the

computer will automatically reboot.



3. Press <F2> during POST to enter the system setup program.



4. Press <Alt> and <F> to reset the computer defaults.



5. Press <Esc>, select Save changes and reboot, and press <Enter> to save configuration changes.



6. Remove the flash BIOS-update program CD from the drive and restart the computer.

Flashing the BIOS From the Hard Drive



1. Ensure that the AC adapter is plugged in, the main battery is properly installed, and a network cable is attached.



2. Turn on the computer.



3. Locate the latest BIOS update file for your computer at support.dell.com.



4. Click Download Now to download the file.



5. If the Export Compliance Disclaimer window appears, click Yes, I Accept this Agreement.

The File Download window appears.



6. Click Save this program to disk and then click OK.

The Save In window appears.



7. Click the down arrow to view the Save In menu, select Desktop, and then click Save.

The file downloads to your desktop.



8. Click Close if the Download Complete window appears.

The file icon appears on your desktop and is titled the same as the downloaded BIOS update file.



9. Double-click the file icon on the desktop and follow the instructions on the screen.

Back to Contents Page



NOTE: If you use a BIOS-update program CD to flash the BIOS, set up the computer to boot from a CD before inserting the CD.

Back to Contents Page

Internal Card With Bluetooth®Wireless Technology

Dell™Latitude™ATGD620ServiceManual



If you ordered an internal card with Bluetooth wireless technology with your computer, it is already installed.



1. Follow the procedures in Before You Begin.



2. Remove the hinge cover (see Hinge Cover).



3. Carefully remove the card cable from its routing guide.



4. While grasping the card cable with one hand, gently press slightly downward (with a plastic scribe) on the tiny, plastic securing tab (shown below) to

release the cable end of the card.



5. Continue to grasp the card cable with one hand while gently prying the card out from underneath the metal tab with the other hand.



CAUTION: Before working inside your computer, follow the safety instructions in your Product Information Guide.

NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching a connector on the back panel of

the computer.

NOTICE: To avoid damaging the system board, you must remove the main battery before you begin working inside the computer (see Before Working

Inside Your Computer).

NOTICE: Be careful when removing the card to avoid damaging the card, card cable, or surrounding components.

connector wire

plastic scribe

plastic securing tab

metal securing tab

plastic securing tab



cable

card connector

card

metal tab

plastic scribe



6. Lift the card from the compartment, ensuring that you do not pull on the card cable with excessive force.



7. Disconnect the card from the cable and remove the card from the computer.

Back to Contents Page



Back to Contents Page

Coin-Cell Battery

Dell™Latitude™ATGD620ServiceManual



1. Follow the procedures in Before You Begin.



2. Remove the hinge cover (see Hinge Cover).



3. Remove the keyboard (see Keyboard).



4. Remove the battery cable connector from the connector on the system board.



5. Being careful not to break the plastic, slightly raise the corner of the plastic arm above the battery.



6. While holding the plastic arm slightly up, grasp the battery and pull it out of the battery compartment.

Back to Contents Page



CAUTION: Before working inside your computer, follow the safety instructions in your Product Information Guide.

NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching a connector on the back panel of

the computer.

NOTICE: To avoid damaging the system board, you must remove the main battery before you begin working inside the computer.

battery cable connector

coin-cell battery

plastic arm

Back to Contents Page

Processor

Dell™Latitude™ATGD620ServiceManual

Removing the Processor

Installing the Processor

Removing the Processor



1. Follow the instructions in Before Working Inside Your Computer.



2. Remove the hinge cover (see Hinge Cover).



3. Remove any installed media bay device (see Media Bay Devices).



4. Remove the keyboard (see Keyboard).



5. Remove the palm rest (see Palm Rest).



6. Remove the processor thermal-cooling assembly (see Processor Thermal-Cooling Assembly).



7. To loosen the ZIF socket, use a small, flat-blade screwdriver and rotate the ZIF-socket cam screw counterclockwise until it comes to the cam stop.

The ZIF-socket cam screw secures the processor to the system board. Take note of the arrow on the ZIF-socket cam screw.



8. Use a processor extraction tool to remove the processor.

CAUTION: Before working inside your computer, follow the safety instructions in the Product Information Guide.

CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of

your computer's electronic components. You can do so by touching an unpainted metal surface.

NOTICE: To prevent intermittent contact between the ZIF-socket cam screw and the processor when removing or replacing the processor, press to

apply slight pressure to the center of the processor while turning the cam screw.

NOTICE: To avoid damage to the processor, hold the screwdriver so that it is perpendicular to the processor when turning the cam screw.

NOTICE: When removing the processor, pull it straight up. Be careful not to bend the pins on the processor.

ZIF-socket cam screw

ZIF-socket

pin-1 corner of processor

Installing the Processor



1. Align the pin-1 corner of the processor so that it points to the triangle on the system board, and insert the processor into the ZIF socket.

When the processor is correctly seated, all four corners are aligned at the same height. If one or more corners of the processor are higher than the

others, the processor is not seated correctly.



2. Tighten the ZIF socket by turning the cam screw clockwise to secure the processor to the system board.



3. Peel the backing off the thermal cooling pad and adhere the pad to the portion of the thermal-cooling assembly that covers the processor.



4. Replace the processor thermal-cooling assembly (see Processor Thermal-Cooling Assembly).



5. Replace the palm rest (see Palm Rest).



6. Replace the keyboard (see Keyboard).



7. Replace the media bay device (see Media Bay Devices).



8. Replace the hinge cover (see Hinge Cover).



9. Replace the battery.



10. Update the BIOS using a flash BIOS-update program CD. See Flashing the BIOS.

Back to Contents Page



NOTICE: Ensure that the cam lock is in the fully open position before seating the processor. Seating the processor properly in the ZIF socket does not

require force.

NOTICE: A processor that is not properly seated can result in an intermittent connection or permanent damage to the processor and ZIF socket.

NOTICE: To prevent intermittent contact between the ZIF-socket cam screw and the processor when removing or replacing the processor, press to

apply slight pressure to the center of the processor while turning the cam screw.

NOTE: Ensure that you reconnect the coin-cell battery (see Coin-Cell Battery) before you replace the keyboard.

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