Dell Studio™ 1557/1558 Service ManualNotes, Cautions, and WarningsInformation in this document is subject to change without notice.© 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 underlicense; Microsoft, Windows, Windows Vista, and Windows Vista start button logo are either trademarks or registered trademarks of Microsoft Corporation in the United States and/orother 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 anyproprietary interest in trademarks and trade names other than its own.Model PP39LSeptember 2009 Rev. A00Before You BeginBase CoverHard DriveMemoryCommunication CardsCoin-Cell BatteryCenter Control CoverKeyboardDisplayPower Button BoardCamera (Optional)Palm RestSpeaker AssemblyInternal Card With Bluetooth® Wireless TechnologyOptical DriveExpressCard BoardAC Adapter ConnectorUSB ConnectorSystem Board AssemblyProcessor Heat SinkProcessor ModuleFanSubwoofer AssemblyBattery Latch AssemblyFlashing the BIOSNOTE: 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.