Dell D620/D820 - LATITUDE PRECISION M65 User manual

Dell™Latitude™D620ServiceManual
Model PP18L
Notes, Notices, and Cautions
Information in this document is subject to change without notice.
©2006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.
November 2006 Rev. A01
BeforeYouBegin
SystemComponents
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Module
Speaker
Microphone
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™D620ServiceManual



1. Follow the instructions in Before Working Inside Your Computer.

2. Remove the hard drive (see Hard Drive).

3. Remove any installed media bay device (see Media Bay Devices).

4. Remove the memory module(s) (see Memory).

5. Remove any installed wireless communications cards (see Communications Cards).

6. Remove the processor thermal-cooling assembly (see Processor Thermal-Cooling Assembly).

7. Remove the processor (see Processor Module).

8. Remove the hinge cover (see Hinge Cover).

9. Remove the keyboard (see Keyboard).

10. Remove the display assembly (see Display Assembly).

11. Remove the palm rest (see Palm Rest).

12. Remove the modem (see Modem).

13. Remove the speaker (see Speaker).

14. Disconnect the fan power cable from the system board.

15. Remove the system board (see System Board).

16. Remove the fan (see Fan).
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CAUTION: Before performing the following procedures, 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.
1
base with K-Lock assembly
2
screw



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Before You Begin
Dell™Latitude™D620ServiceManual
Recommended Tools
Turning Off Your Computer
Before Working Inside Your Computer
Computer Orientation
Screw Identification
This chapter provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that the
following conditions exist:
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#1 Phillips screwdriver
lSmall plastic scribe
l5-mm hex nut driver
lFlash BIOS-update program CD
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 installed ExpressCards from the ExpressCard slot.
Computer Orientation
Screw Identification
When you are removing and replacing components, print this section as a tool to lay out and keep track of the screws. The printout provides the number of
screws and their sizes.
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.
1
battery
2
battery-bay latch release
3
battery tab
1
front
2
left
3
back
4
right

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
Optical Drive:
(1 each)

NOTE: This screw is optional
and might not be installed on
the computer.
Fan Module:
(4 each)
Display Assembly
to Computer Base:
(4 each)

Modem to
System Board:
(2 each)
Display Bezel:
(6 each)

Display Panel:
(8 each)

Top of Palm Rest to
Computer Base:
(3 each)

Base Plastics to
Palm Rest From Bottom:
(7 each)
Hard Drive Carrier to
Hard Drive:
(2 each)

Speaker to
Base Plastics:
(1 each)
System Board to
Base Plastics:
(5 each, system board)
Keyboard to Palm Rest:
(3 each)
Display Hinges to Top Cover:
(2 each)




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Flashing the BIOS
Dell™Latitude™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.
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
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.

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Internal Card with Bluetooth®Wireless Technology
Dell™Latitude™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. Gently pull left on the cable for the card with Bluetooth wireless technology.

4. When there is enough clearance between the right edge of the card and the card holder, insert a plastic scribe and pry the card to the left until it is
released from the metal clip.

5. Disconnect the card from the cable and remove the card from the computer.
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
CAUTION: Before performing the following procedures, 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.
1
metal tab
2
card
3
card connector
4
card cable




NOTICE: Be careful when removing the card to avoid damaging the card, card cable, or surrounding components.

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Coin-Cell Battery
Dell™Latitude™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 coin-cell battery connector from the connector on the system board.

5. Being careful not to break the plastic, slightly raise the corner of the plastic mylar above the battery.

6. While holding the mylar, grasp the battery and pull out of the battery compartment.
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
CAUTION: Before performing the following procedures, 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.
1
coin-cell battery connector
2
plastic mylar
3
coin-cell battery

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Processor Module
Dell™Latitude™D620ServiceManual
Removing the Processor Module
Installing the Processor Module
Removing the Processor Module



1. Follow the instructions in Before Working Inside Your Computer.

2. Remove the hinge cover (see Hinge Cover).

3. Remove the optical drive (see Media Bay Devices).

4. Remove the keyboard (see Keyboard).

5. Remove the coin-cell battery (see Coin-Cell Battery).

6. Remove the palm rest (see Palm Rest).

7. Remove the processor thermal-cooling assembly (see Processor Thermal-Cooling Assembly).

8. 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.

9. Use a processor extraction tool to remove the processor module.
CAUTION: Before performing the following procedures, 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: Press and hold the processor down by applying slight pressure to the center of the processor while turning the cam screw to prevent
intermittent contact between the cam screw and processor.
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 module, pull the module straight up. Be careful not to bend the pins on the processor module.
1
ZIF-socket cam screw
2
ZIF-socket
3
pin-1 corner of processor