Dell Vostro A90 Service Manual
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Dell Vostro A90 Service Manual

Dell Vostro A90 Service Manual

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Dell™ Vostro™ A90 Service Manual 
Before You Begin
Module Cover
Memory Module
Solid-state Drive
Wireless Mini-Card
Keyboard
Palm Rest
Internal Card With Bluetooth® Wireless Technology
Model PP39S
 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.
Information in this document is subject to change without notice.
© 2008 Dell Inc. All rights reserved.
Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
Trademarks used in this text: Dell, the DELL logo, and Vostro are trademarks of Dell Inc.; Bluetooth is a registered trademark owned by Bluetooth SIG, Inc. and is used by Dell
under license. Microsoft, Windows, a n d Windows XP are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.
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.
September 2009 Rev. A01
Power Button Board
Display
Speaker
Camera
System Board
Microphone
Coin-Cell Battery
Flashing the BIOS

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  • Page 1 Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. Trademarks used in this text: Dell, the DELL logo, and Vostro are trademarks of Dell Inc.; Bluetooth is a registered trademark owned by Bluetooth SIG, Inc. and is used by Dell under license.

  • Page 2: Removing The Module Cover

      CAUTION: 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: Before performing this procedure, turn off the computer, disconnect the AC adapter from the electrical outlet and the computer, disconnect the modem from the wall connector and the computer, and remove any other external cables from the computer.

  • Page 3: Before You Begin

    Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.
  • Page 4 To help prevent damage to the system board, you must remove the battery from the battery bay before you service the computer.   NOTICE: To avoid damage to the computer, use only the battery designed for this particular Dell computer. Do not use batteries designed for other Dell computers.  ...

  • Page 5: 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 6 ® Places® Documents.   4. Create a new folder and name it BIOS.   5. Locate the latest BIOS update file for your computer at support.dell.com.   6. Click Download Now to download the file.   7. If the Export Compliance Disclaimer window appears, click Yes, I Accept this Agreement.

  • Page 7: Internal Card With Bluetooth® Wireless Technology

      CAUTION: 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.   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 8   5. Replace the module cover (see Replacing the Module Cover).   6. Slide the battery into the battery bay, until it clicks into place and slide the battery-lock latch towards the lock position. Back to Contents Page  ...

  • Page 9: Removing The Camera

      CAUTION: 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.   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 10 Back to Contents Page  ...

  • Page 11: Removing The Coin-Cell Battery

      CAUTION: 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.   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 12   7. Replace the module cover (see Replacing the Module Cover).   8. Slide the main battery into the battery bay, until it clicks into place and slide the battery-lock latch towards the lock position. Back to Contents Page  ...

  • Page 13: Display Assembly

      CAUTION: 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.   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 14: Display Bezel

    display cables Mini-Card antenna cables speaker cable       9. Remove the two screws from the display assembly hinges.   10. Remove the display assembly from the computer base. display cable connectors screw (2) speaker cable connector      ...

  • Page 15: Display Panel

      Removing the Display Bezel   NOTICE: The display bezel is extremely fragile. Be careful when removing it to prevent damaging the bezel.   1. Follow the instructions in Removing the Display Assembly.   2. Using your fingertips, carefully pry up the inside edge of the display bezel.  ...

  • Page 16: Display Panel Cable

    display cover screw (6) display panel       6. Remove the four screws (two on each side) that secure the display panel brackets to the display panel. 1 screw (4 total; 2 on each side) 2 display panel bracket (1 left, 1 right)  ...
  • Page 17 Removing the Display Panel Cable NOTE: The Display Panel cables and connectors may differ depending on the Display Panel you ordered.   1. Follow the instructions in Removing the Display Assembly.   2. Remove the display bezel (see Removing the Display Bezel).

  • Page 18: Removing The Keyboard

      Keyboard Dell™ Vostro™ A90 Service Manual    Removing the Keyboard   Replacing the Keyboard For more information about the keyboard, see the Dell Technology Guide.   CAUTION: 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.

  • Page 19: Replacing The Keyboard

    keyboard keyboard tab (3) keyboard cable securing tab (2)  Replacing the Keyboard   1. Slide the keyboard cable connector into the slot and push in the securing tabs to secure the keyboard cable to the system board.   NOTICE: The keycaps on the keyboard are fragile, easily dislodged, and time- consuming to replace. Be careful when removing and handling the keyboard.

  • Page 20: Removing The Memory Module

    Setup Guide for information on the memory supported by your computer. Install only memory modules that are intended for your computer. NOTE: Memory modules purchased from Dell are covered under your computer warranty. Your computer has a user-accessible SODIMM socket that can be accessed from the bottom of the computer.
  • Page 21 3. Slide the memory module firmly into the slot at a 45-degree angle, and rotate the memory module down until it clicks into place. If the module does not click into place, remove the memory module and reinstall it. NOTE: If the memory module is not installed properly, the computer may not boot.

  • Page 22: Removing The Microphone

      CAUTION: 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.   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 23: Wireless Mini-Card

    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 supports one full Mini-Card slot for Wireless Local Area Network (WLAN).

  • Page 24: Replacing The Mini-Card

    9. Install the drivers and utilities for your computer, as required. For more information, see the Dell Technology Guide. NOTE: If you are installing a Mini-Card from a source other than Dell, you must install the appropriate drivers and utilities. For more information, see the Dell Technology Guide.

  • Page 25: Removing The Palm Rest

      CAUTION: 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.   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 26: Replacing The Palm Rest

    power button cable screw (7) Bluetooth card cable palm rest touch pad cable       NOTICE: Carefully separate the palm rest from the computer base to avoid damage to the palm rest.   8. Starting at the back center of the palm rest, use your fingers to gently ease the palm rest from the computer base by lifting the inside of the palm rest while pulling on the outside.
  • Page 27   6. Turn the computer over and replace the nine screws in the computer base.   7. Replace the left and right rubber bumpers.   8. Replace the keyboard (see Replacing the Keyboard).   9. Replace the module cover (see Replacing the Module Cover).

  • Page 28: Removing The Power Button Board

      CAUTION: 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.   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 29   6. Slide the battery into the battery bay, until it clicks into place and slide the battery-lock latch towards the lock position. Back to Contents Page  ...

  • Page 30: Removing The Speaker

      CAUTION: 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.   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 31 6. Replace the display assembly (see Replacing the Display Assembly).   7. Replace the palm rest (see Replacing the Palm Rest).   8. Replace the keyboard (see Replacing the Keyboard).   9. Replace the module cover (see Replacing the Module Cover).

  • Page 32: Removing The Solid-State Drive

    Dell does not guarantee compatibility or provide support for solid-state drives from sources other than Dell. NOTE: If you are installing a solid-state drive from a source other than Dell, you need to install an operating system, drivers, and utilities on the new solid-state drive (see related topics in your Setup Guide).
  • Page 33   5. Slide the battery into the battery bay, until it clicks into place and slide the battery-lock latch towards the lock position.   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 34: Removing The System Board

      CAUTION: 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.   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 35 1. Remove the centrifugal paper of the thermal pads that shipped with your new system board and paste it on the processor, North Bridge, and South Bridge. thermal pad (3) south bridge north bridge processor   2. Follow all the steps in Removing the System Board in reverse order.
  • Page 36   2. Press <0> during POST to enter the system setup program.   3. Navigate to the security tab and enter the service tag in the Set Service Tag field. Using CD - The replacement kit for the system board includes a CD that provides a utility for transferring the service tag to the replacement system board. NOTE: Your computer may or may not ship with an external optical drive.
  • Page 37 Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. Trademarks used in this text: Dell, the DELL logo, and Vostro 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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