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 Power Button Board Display Speaker Camera System Board Microphone Coin-Cell Battery Flashing the BIOS Model PP39S Notes, Notices, and Cautions NOTE: A NOTE indicates important information that helps you make better use of your computer.
Back to Contents Page Module Cover Dell™ Vostro™ A90 Service Manual Removing the Module Cover Replacing 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.
Back to Contents Page Before You Begin Dell™ Vostro™ A90 Service Manual Recommended Tools Turning Off Your Computer Before Working Inside Your Computer This section 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 that shipped with your computer.
NOTICE: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables have connectors 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.
Back to Contents Page Flashing the BIOS Dell™ Vostro™ A90 Service Manual Flashing the BIOS From a CD Flashing the BIOS From the Solid-state Drive in Windows® XP Flashing the BIOS From the Solid-state Drive in Ubuntu® 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 solid-state drive. NOTE: Your computer may or may not ship with an external optical drive.
1. Ensure that the AC adapter is plugged in and the main battery is properly installed. 2. Turn on the computer. NOTE: Your computer may or may not ship with an external optical drive. Use an external optical drive or any external storage device for the procedures that involve discs. 3. Click ® 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.
Back to Contents Page Internal Card With Bluetooth® Wireless Technology Dell™ Vostro™ A90 Service Manual Removing the Card Replacing the Card 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.
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 Camera Dell™ Vostro™ A90 Service Manual Removing the Camera Replacing 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.
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Back to Contents Page Coin-Cell Battery Dell™ Vostro™ A90 Service Manual Removing the Coin-Cell Battery Replacing 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.
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 Display Dell™ Vostro™ A90 Service Manual Display Assembly Display Bezel Display Panel Display Panel Cable 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.
1 display cables 3 speaker cable 9. 2 Mini-Card antenna cables Remove the two screws from the display assembly hinges. 10. Remove the display assembly from the computer base. 1 display cable connectors 3 speaker cable connector 2 screw (2) Replacing the Display Assembly 1. Align the display assembly hinges with the holes in the base of the computer and then lower the display into place. 2. Replace and tighten the two display assembly hinge screws. 3.
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. 3. Remove the display bezel. 1 display panel 2 display bezel Replacing the Display Bezel 1. Realign the display bezel over the display panel, and gently snap into place. 2.
1 display cover 3 display panel 6. 2 screw (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) Replacing the Display Panel 1. Attach the display bracket to the display panel by replacing the four screws (two on each side of the display panel). 2. Align the display assembly panel with the display cover and replace the six screws. 3.
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). 3. Remove the camera (see Removing the Camera). 4. Remove the display panel (see Removing the Display Panel). 5. Turn over the display panel and place it on a clean surface. 6.
Back to Contents Page 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.
1 keyboard 2 keyboard tab (3) 3 keyboard cable 4 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. 2. Align the tabs on the keyboard to the bottom of the palm rest and keep it in place. 3.
Back to Contents Page Memory Module Dell™ Vostro™ A90 Service Manual Removing the Memory Module Replacing the Memory Module 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. You can increase your computer memory by replacing the current memory module on the system board with a higher one.
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. No error message indicates this failure. 1 tab 2 notch NOTICE: If the cover is difficult to close, remove the module and reinstall it. Forcing the cover to close may damage your computer. 4.
Back to Contents Page Microphone Dell™ Vostro™ A90 Service Manual Removing the Microphone Replacing 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.
Back to Contents Page Wireless Mini-Card Dell™ Vostro™ A90 Service Manual Removing the Mini-Card Replacing the Mini-Card 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 help prevent damage to the system board, you must remove the battery from the battery bay before you begin working inside the computer.
NOTICE: When the Mini-Card is not in the computer, store it in protective antistatic packaging. See the information on protection against electrostatic discharge in the safety information that shipped with your computer. Replacing the Mini-Card NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors on the card and on the system board, and realign the card. NOTICE: To avoid damage to the Mini-Card, never place cables under the card. 1.
Back to Contents Page Palm Rest Dell™ Vostro™ A90 Service Manual Removing the Palm Rest Replacing the Palm Rest 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.
1 power button cable 2 screw (7) 3 Bluetooth card cable 4 palm rest 5 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. NOTE: The thermal pads may stick to the bottom of the palm rest. Remove the thermal pads from the bottom of the palm rest. 9.
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). 10. 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 Power Button Board Dell™ Vostro™ A90 Service Manual Removing the Power Button Board Replacing 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.
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 Speaker Dell™ Vostro™ A90 Service Manual Removing the Speaker Replacing 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.
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). 10. 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 Solid-state Drive Dell™ Vostro™ A90 Service Manual Removing the Solid-state Drive Replacing the Solid-state Drive 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: If you remove the solid-state drive from the computer when the drive is hot, do not touch the solid-state drive.
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. 6. Install the operating system for your computer, as needed (see "Restoring Your Operating System" in your computer Setup Guide or Ubuntu Quick Start Guide). 7.
Back to Contents Page System Board Dell™ Vostro™ A90 Service Manual Removing the System Board Replacing the System Board Setting the Keyboard Matrix Updating Service Tag 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.
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. 1 thermal pad (3) 2 south bridge 3 north bridge 4 processor 2. Follow all the steps in Removing the System Board 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. 3. Turn on the computer.
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. Use an external optical drive or any external storage device for the procedures that involve discs.
Back to Contents Page Dell™ Vostro™ A90 Service Manual 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.
