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© 2009 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 and the DELL logo are trademarks of Dell Inc.; Bluetooth is a registered trademark owned by Bluetooth SIG, Inc. and is used by Dell under license; Microsoft, Windows, Windows Vista, and Windows Vista start button logo 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. Model PP39L September 2009 Rev. A00 Before You Begin Base Cover Hard Drive Memory Communication Cards Coin-Cell Battery Center Control Cover Keyboard Display Power Button Board Camera (Optional) Palm Rest Speaker Assembly Internal Card With Bluetooth® Wireless Technology Optical Drive ExpressCard Board AC Adapter Connector USB Connector System Board Assembly Processor Heat Sink Processor Module Fan Subwoofer Assembly Battery Latch Assembly Flashing the BIOS NOTE: A NOTE indicates important information that helps you make better use of your computer. CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Back to Contents Page Base Cover Dell Studio™ 1557/1558 Service Manual Removing the Base Cover Replacing the Base Cover Removing the Base Cover 1. Ensure that the computer is turned off. 2. Remove the battery (see Before Working Inside Your Computer). 3. Loosen the three captive screws on the base cover and lift the base cover off the computer at an angle as shown in the figure. Replacing the Base Cover 1. Align the tabs on the base cover to the bottom of the computer. 2. Tighten the three captive screws on the base cover. 3. Slide the battery into the battery bay until it clicks into place. Back to Contents Page WARNING: 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 WARNING: Before performing these procedures, 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. CAUTION: 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). 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. CAUTION: To help prevent damage to the system board, remove the main battery (see Before Working Inside Your Computer) before working inside the computer. 1 base cover 2 tabs (4) 3 captive screws (3) Back to Contents Page Before You Begin Dell Studio™ 1557/1558 Service Manual Recommended Tools Turning Off Your Computer Before Working Inside Your Computer This manual provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that: l You have performed the steps in Before Working Inside Your Computer. l You have read the safety information that shipped with your computer. l When replacing a component, you have already removed the original component, if installed. Recommended Tools The procedures in this document may require the following tools: l Small flat-blade screwdriver l Phillips screwdriver l Small plastic scribe l Flash BIOS executable update program at support.dell.com Turning Off Your Computer 1. Save and close all open files and exit all open programs. 2. Shut down the operating system: Windows Vista®: Click the Start , click the arrow , and then click Shut Down. Windows® 7: Click the Start and then click Shut Down. 3. Ensure that the computer is turned off. If your computer did not automatically turn off when you shut down the operating system, press and hold the power button until the computer turns off. 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. CAUTION: To avoid losing data, save and close all open files and exit all open programs before you turn off your computer. WARNING: 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 CAUTION: Only a certified service technician should perfor...