Dell Latitude D520 Service Manual
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Dell Latitude D520 Service Manual

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See also: Quick Reference Manual
Dell™ Latitude™ D520 Service Manual
Before You Begin
System Components
Media Bay
Hard Drive
Memory Module(s)
Modem
Mini-Card
Internal Card With Bluetooth ® Wireless Technology
Hinge Cover
Keyboard
Display Assembly
Notes, Notices, and Cautions
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.
Abbreviations and Acronyms
For a complete list of abbreviations and acronyms, see "Glossary" in the User's Guide.
If you purchased a Dell™ n Series computer, any references in this document to Microsoft® Windows® operating systems are not applicable.
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; Microsoft and Windows are registered trademarks of Microsoft Corporation.
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 PP17L
March 2006 Rev. A00
Palm Rest
Coin-Cell Battery
Speaker Assembly
Base Latch
Processor Thermal-Cooling Assembly
Processor Module
System Fan
System Board Assembly
Flashing the BIOS
Pin 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: Before You Begin

    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.

  • Page 3: Computer Orientation

      4. Disconnect your computer and all attached devices from their electrical outlets.   5. Close the display and turn the computer upside-down on a flat work surface. NOTICE: To help prevent damage to the system board, remove the main battery before working inside the computer.  ...
  • Page 4 Media Bay Device: Hard Drive: Modem: (1 each) (2 each) (1 each) Display Bezel: Keyboard: Display Assembly: (6 each, under rubber display (4 each) (2 each) bumpers)       Display Panel: Palm Rest: Display Latch: (8 each) (14 each – bottom side) (1 each)  ...

  • Page 5: Removing The Card

    Back to Contents Page   Internal Card With Bluetooth® Wireless Technology Dell™ Latitude™ D520 Service Manual   Removing the Card  Removing the Card CAUTION: Before performing the following procedures, read 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 6 Back to Contents Page   Mini-Card Dell™ Latitude™ D520 Service Manual   Wireless Local Area Network (WLAN) Cards CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. NOTICE: To prevent damage to the system board, remove the main battery before you service the computer.
  • Page 7 WLAN card metal securing tabs (2)     c.  Slide the card at a 45-degree angle 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 (WWAN) network card into the WLAN card connector.
  • Page 8 Back to Contents Page   Coin-Cell Battery Dell™ Latitude™ D520 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 9: Table Of Contents

      System Components Dell™ Latitude™ D520 Service Manual 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: Unless otherwise noted, each procedure in this document assumes that a part can be replaced by performing the removal procedure in reverse order.

  • Page 10: Notice

    Back to Contents Page   Processor Module Dell™ Latitude™ D520 Service Manual   Removing the Processor Module   Replacing the Processor Module  Removing the Processor Module CAUTION: Before you begin the following procedure, 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 the back panel) on the computer.

  • Page 11: Back To Contents Page

    NOTICE: A processor module that is not properly seated can result in an intermittent connection or permanent damage to the processor and ZIF socket. NOTE: If a new microprocessor is installed, you will receive one of the following: a new thermal-cooling assembly which will include an affixed thermal pad;...
  • Page 12 Back to Contents Page   Processor Thermal-Cooling Assembly Dell™ Latitude™ D520 Service Manual   Removing the Processor Thermal-Cooling Assembly   Replacing the Processor Thermal-Cooling Assembly  Removing the Processor Thermal-Cooling Assembly CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide.
  • Page 13   2. Tighten the six captive screws, labeled "1" through "6," in consecutive order. Back to Contents Page  ...

  • Page 14: Display Assembly

    Back to Contents Page   Display Assembly Dell™ Latitude™ D520 Service Manual   Removing the Display Assembly   Display Bezel   Display Panel   Display Latch  Removing the Display Assembly CAUTION: Before you begin the following procedure, 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 the back panel) on the computer.

  • Page 15: Display Bezel

    NOTICE: Ensure the antenna cables are not twisted and that they are lying flat in the antenna cable clip.    1. Replace the four M2.5 x 5-mm screws that secure the display to the computer base.   2. Connect the display cable to the system board.   3. Connect the three antenna cables.   4. Replace the keyboard.  ...

  • Page 16: Display Panel

    3. Replace the five rubber display bumpers around the display bezel.  Display Panel   Removing the Display Panel CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer. NOTICE: To help prevent damage to the system board, you must remove the main battery (see Before Working Inside Your...

  • Page 17: Replacing The Display Panel

    4 inverter connector           Replacing the Display Panel   1. Reconnect the top display-cable connector to the top flex-cable connector.   2. Reconnect the bottom flex-cable connector to the inverter connector.   3. Replace the display panel inside the display back cover. NOTE: The eight screw locations are numbered.

  • Page 18: Replacing The Display Latch

    Replacing the Display Latch   1. Align the latch with the posts on the display back and set into place.   2. Replace the support bracket and replace the M2 x 4-mm screw. Back to Contents Page  ...

  • Page 19: System Fan

    Back to Contents Page   System Fan Dell™ Latitude™ D520 Service Manual CAUTION: Before you begin the following procedure, 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 the back panel) on the computer.

  • Page 20: Flashing The Bios

    Back to Contents Page   Flashing the BIOS Dell™ Latitude™ D520 Service Manual NOTICE: Plug the AC adapter into a known good power source to prevent a loss of power. Failure to do so may cause system damage.   1. Ensure that the AC adapter is plugged in and that the main battery is installed properly.

  • Page 21: Hard Drive

    NOTICE: Hard drives are extremely fragile; even a slight bump can damage the drive. NOTE: Dell does not guarantee compatibility or provide support for hard drives from sources other than Dell.   1. Follow the instructions in Before Working Inside Your Computer.

  • Page 22: Returning A Hard Drive To Dell

     Returning a Hard Drive to Dell Return your old hard drive to Dell in its original or comparable foam packaging. Otherwise, the hard drive may be damaged in transit. hard drive foam packaging Back to Contents Page  ...

  • Page 23: Hinge Cover

    Back to Contents Page   Hinge Cover Dell™ Latitude™ D520 Service Manual CAUTION: Before you begin the following procedure, 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 the back panel) on the computer.

  • Page 24: Removing The Keyboard

    Back to Contents Page   Keyboard Dell™ Latitude™ D520 Service Manual   Removing the Keyboard   Replacing the Keyboard 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 25 Back to Contents Page  ...

  • Page 26: Base Latch

    Back to Contents Page   Base Latch Dell™ Latitude™ D520 Service Manual CAUTION: Before you begin the following procedure, 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 the back panel) on the computer.

  • Page 27: Media Bay

    Back to Contents Page   Media Bay Dell™ Latitude™ D520 Service Manual NOTE: If the device security screw is not present, you can remove and install devices while the computer is running and connected to a docking device (docked).   1. Save and close any open files, exit any open programs, and shut down the computer.
  • Page 28 Install only memory modules that are intended for your computer. NOTE: Memory modules purchased from Dell are covered under your computer warranty. CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
  • Page 29 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, click Help and Support, and then click Dell System Information.  DIMM B  ...
  • Page 30 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, click Help and Support, and then click Dell System Information. Back to Contents Page...

  • Page 31: Removing The Modem

    Back to Contents Page   Modem Dell™ Latitude™ D520 Service Manual   Removing the Modem   Replacing the Modem  Removing the Modem CAUTION: Before you begin the following procedure, 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 the back panel) on the computer.

  • Page 32: Replacing The Modem

    5. Disconnect the modem cable from the modem.  Replacing the Modem   1. Connect the modem cable to the modem. NOTICE: Ensure that the modem cable is routed correctly when you replace the modem.   2. Connect the modem to the system board. Align the connector on the bottom of the modem with the modem connector on the system board, and press down on the right side of the modem.

  • Page 33: Palm Rest

    Back to Contents Page   Palm Rest Dell™ Latitude™ D520 Service Manual   Removing the Palm Rest   Replacing the Palm Rest  Removing the Palm Rest CAUTION: Before you begin the following procedure, 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 the back panel) on the computer.

  • Page 34: Replacing The Palm Rest

        M2.5 x 5-mm screws (4)       9. Use the touch pad connector tab to disconnect the touch pad connector from the system board. touch pad connector       10. Starting at the back center of the palm rest, use your fingers to separate the palm rest from the computer base by gently lifting up the palm rest while pressing down on the back of the computer base.

  • Page 35: Usb Connector

    Back to Contents Page   Pin Assignments for I/O Connectors Dell™ Latitude™ D520 Service Manual   USB Connector   Video Connector   S-Video TV-Out Connector   IEEE 1394 Connector  USB Connector     Signal USB5V+ USBP– USBP+  Video Connector         Signal Signal CRT_R 9 CRT_G 10 CRT_B 11 MONITOR_DETECT–...

  • Page 36: Ieee 1394 Connector

    DLUMA-L DCRMA-L   Composite Video     Signal DCMPS-L  IEEE 1394 Connector     Signal TPB– TPB+ TPA– TPA+ Back to Contents Page  ...

  • Page 37: Speaker Assembly

    Back to Contents Page   Speaker Assembly Dell™ Latitude™ D520 Service Manual   Removing the Speaker Assembly   Replacing the Speaker Assembly  Removing the Speaker Assembly CAUTION: Before you begin the following procedure, 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 the back panel) on the computer.
  • Page 38 2. Replace the M2.5 x 5-mm screw that secures the speaker assembly in place. Back to Contents Page  ...

  • Page 39: Processor

    Back to Contents Page   System Board Assembly Dell™ Latitude™ D520 Service Manual   Removing the System Board Assembly   Replacing the System Board Assembly  Removing the System Board Assembly CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide.
  • Page 40 M2.5 x 5-mm screws (2)           15. Turn the computer upside down and remove the four M2 x 3-mm screws labeled "B" that secure the system board to the computer base. M2 x 3-mm screws labeled "B" (4)  ...

  • Page 41: Replacing The System Board Assembly

     Replacing the System Board Assembly   1. Perform all of the steps in Removing the System Board Assembly in reverse order. NOTICE: 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.
  • Page 42 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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