Dell Latitude D820 Service Manual
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Dell Latitude D820 Service Manual

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Dell™ Latitude™ D820  Service Manual
Before You Begin
System Components
Hard Drive
Hinge Cover
Memory
Display Assembly
Communications Cards
Palm Rest
Coin-Cell Battery
Modem
Internal Card with Bluetooth® Wireless Technology
Notes, Notices, and Cautions
NOTE:
A NOTE indicates important information that helps you make better use of your computer.
NOTICE:
CAUTION:
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.; 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 PP04X
June 2006 Rev. A01
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A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
A CAUTION indicates a potential for property damage, personal injury, or death.
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Processor Thermal-Cooling Assembly
Keyboard
Processor Module
PC Card Reader
System Board
Battery Latch
Base
Fan
Flashing the BIOS
Pinout Assignments for I/O Connectors

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  • Page 1 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.; Bluetooth is a registered trademark owned by Bluetooth SIG, Inc. and is used by Dell under license;...
  • Page 2 Back to Contents Page   Base Dell™ Latitude™ D820  Service Manual 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.

  • Page 3: Battery Latch

    Back to Contents Page   Battery Latch Dell™ Latitude™ D820  Service Manual 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.

  • Page 4: Before You Begin

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

  • Page 5: Computer Orientation

      4. Disconnect your computer and all attached devices from their electrical outlets.   5. Turn over the computer. NOTICE: To avoid damaging the system board, you must remove the main battery before you service the computer.   6. Remove the battery. a.

  • Page 6: Internal Card With Bluetooth® Wireless Technology

    Back to Contents Page   Internal Card with Bluetooth® Wireless Technology Dell™ Latitude™ D820  Service Manual 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.

  • Page 7: Coin-Cell Battery

    Back to Contents Page   Coin-Cell Battery Dell™ Latitude™ D820  Service Manual 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.

  • Page 8: System Components

      System Components Dell™ Latitude™ D820  Service Manual 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. NOTICE: Unless otherwise noted, each procedure in this document assumes that a part can be replaced by performing the removal procedure in reverse order.

  • Page 9: Removing The Processor Module

    Back to Contents Page   Processor Module Dell™ Latitude™ D820  Service Manual   Removing the Processor Module   Installing the Processor Module  Removing 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.
  • Page 10 NOTICE: A processor module that is not properly seated can result in an intermittent connection or permanent damage to the processor and ZIF socket.   1. Align the pin-1 corner of the processor module so that it points to the triangle on the system board, and insert the processor module into the ZIF socket. When the processor module is correctly seated, all four corners are aligned at the same height.

  • Page 11: Processor Thermal-Cooling Assembly

    Back to Contents Page   Processor Thermal-Cooling Assembly Dell™ Latitude™ D820  Service Manual 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.

  • Page 12: Removing The Display Assembly

    Back to Contents Page   Display Assembly Dell™ Latitude™ D820  Service Manual   Removing the Display Assembly   Removing the Display Bezel   Removing the Display Panel   Installing the Display Panel   Removing the Display Panel Brackets   Removing the Display Latch  Removing the Display Assembly CAUTION: Before performing the following procedures, follow the safety instructions in the Product Information Guide.

  • Page 13: Removing The Display Bezel

    M2.5 x 8-mm screws labeled "D" (2)   10. From the back of the computer, remove the two M2.5 x 8-mm screws. M2.5 x 8-mm screws (2)   11. Turn the computer top-side up and open the display.   12. Lift the display assembly out of the computer base.  Removing the Display Bezel CAUTION: Before performing the following procedures, follow the safety instructions in the Product Information Guide.

  • Page 14: Installing The Display Panel

      5. Starting from the sides of the display panel, use your fingers to separate the bezel from the top cover and lift the bezel away from the top cover.  Removing the Display Panel 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.

  • Page 15: Removing The Display Latch

    display panel display-panel side bracket screws (4)   6. Remove the four screws from the left display-panel side bracket and lift away the bracket.  Removing the Display Latch 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.
  • Page 16 Back to Contents Page   Great user manuals database on UserManuals.info...
  • Page 17 Back to Contents Page   Fan Dell™ Latitude™ D820  Service Manual 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.

  • Page 18: Flashing The Bios From A Cd

    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.  ...

  • Page 19: Hard Drive

    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. To replace the hard drive in the hard drive bay:  ...
  • Page 20 6. Slide the new hard drive into the bay and into the connector until it is fully seated.   7. Replace the two hard drive screws. Back to Contents Page   Great user manuals database on UserManuals.info...

  • Page 21: Hinge Cover

    Back to Contents Page   Hinge Cover Dell™ Latitude™ D820  Service Manual CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. NOTICE: 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 the back of the computer).
  • Page 22 Back to Contents Page   Keyboard Dell™ Latitude™ D820  Service Manual CAUTION: Before working inside your Dell™ computer, follow the safety instructions in your 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.
  • Page 23 If you remove your original memory modules from the computer during a memory upgrade, keep them separate from any new modules that you may have, even if you purchased the new modules from Dell. If possible, do not pair an original memory module with a new memory module.
  • Page 24 8. Replace the hinge cover (Hinge Cover).   9. Insert the battery into the battery bay, or connect the AC adapter to your computer and an electrical outlet.   10. Turn on the computer. 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®...
  • Page 25 5. Replace the memory module cover and tighten the screw. NOTICE: If the cover is difficult to close, remove the module and reinstall it. Forcing the cover to close may damage your computer.   6. Insert the battery into the battery bay, or connect the AC adapter to your computer and an electrical outlet.  ...

  • Page 26: Communications Cards

    Back to Contents Page   Communications Cards Dell™ Latitude™ D820  Service Manual   Wireless Cards   Subscriber Identity Module (SIM) Card  Wireless Cards If you ordered a wireless LAN or WAN card with your computer, the card is already installed. CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
  • Page 27 WLAN card metal securing tabs (2) c.  Lift the card out of its connector. NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors and realign the card. NOTE: Do not insert a Mobile Broadband network card into the WLAN card slot. NOTE: The WLAN card may have two or three connectors, depending on the type of card you ordered.

  • Page 28: Subscriber Identity Module (Sim) Card

    antenna cables b.  Release the card by spreading the metal securing tabs until the card pops up slightly. Mobile Broadband card metal securing tabs (2) c.  Lift the card out of its connector. NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors and realign the card.  ...
  • Page 29 SIM card Back to Contents Page   Great user manuals database on UserManuals.info...
  • Page 30 Back to Contents Page   Modem Dell™ Latitude™ D820  Service Manual CAUTION: Before you begin the following procedure, see the safety instructions in the Product Information Guide. NOTICE: To avoid damaging the system board, you must remove the main battery before you begin working inside the computer (see Before You Begin).
  • Page 31 Back to Contents Page   Palm Rest Dell™ Latitude™ D820  Service Manual 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.
  • Page 32 NOTICE: When replacing the palmrest, ensure the internal card with Bluetooth wireless technology cable is properly placed on top of the palmrest to avoid damaging the cable. Back to Contents Page   Great user manuals database on UserManuals.info...

  • Page 33: Pc Card Reader

    Back to Contents Page   PC Card Reader Dell™ Latitude™ D820  Service Manual 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.

  • Page 34: Usb Connector

    Back to Contents Page   Pinout Assignments for I/O Connectors   USB Connector   Video Connector  USB Connector     Signal USB5V+ USBP– USBP+  Video Connector         Signal Signal CRT_R 9 CRT_G 10 CRT_B 11 MONITOR_DETECT– DDC_DATA CRT_HS CRT_VS DDC_CLK  ...

  • Page 35: Removing The System Board

    Back to Contents Page   System Board Dell™ Latitude™ D820  Service Manual   Removing the System Board   Installing the System Board  Removing the System Board 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.

  • Page 36: Installing The System Board

      15. Lift the system board out and away from the base.  Installing the System Board   1. Perform all the steps in Removing the System Board in reverse order. NOTE: When installing the system board, ensure that you align the wireless switch on the base with the switch on the system board. wireless switch  ...
  • Page 37   Great user manuals database on UserManuals.info...

  • Page 38: Notes, Notices, And Cautions

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

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