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Maintenance Manual ExtensaTM 57x Series TM Notebook Computers 9811323-0001 May 1996 Copyright (©) 1996 Texas Instruments Incorporated All Rights Reserved -- Printed in U.S.A. ExtensaTM 57x Series Notebook Computers TM Maintenance Manual TI Part No. 9811323-0001 Original Issue: May 1996 Changes may be made periodically to the information in this publication. Such changes will be incorporated in new editions of this manual. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopy, recording, or otherwise, without the prior written permission of Texas Instruments Incorporated. The equipment, as well as the programs that TI has created to use with them, are tools that can help people better manage the information used in their business; but tools -- including TI products -- cannot replace sound judgment nor make the manager's business decisions. Consequently, TI cannot warrant that its products are suitable for any specific customer application. The manager must rely on judgment of what is best for his or her business. Address all correspondence regarding orders to: Texas Instruments Incorporated P.O. Box 6102, M/S 3255 Temple, Texas 76503 Extensa and DockMate are trademarks of Texas Instruments. The icons in the Windows Notebook and Startup groups are copyrighted by Texas Instruments. Lotus is a trademark of Lotus Development Corporation. IBM and VGA are trademarks and PS/2 is a registered trademark of International Business Machines Corporation. Microsoft, Windows, and MS-DOS are registered trademarks of Microsoft Corporation. Intel and Pentium are registered trademarks of Intel Corporation. Cirrus and SimulSCAN are trademarks of Cirrus Logic, Inc. IRDA is a trademark of Infra Red Data Association. Contents Preface 1 General Description 1.1 . . . . Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.2 . . . . Product Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.3 . . . . International Product Versions . . . . . . . . . . . . . . . . . 1-2 1.4 . . . . Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1.4.1 . . . External Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 1.4.2 . . . Glidepad Pointing Device . . . . . . . . . . . . . . . . . . . 1-6 1.4.3 . . . Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 1.4.4 . . . Standard Power Features . . . . . . . . . . . . . . . . . . . 1-7 1.4.5 . . . Wireless Connection With Serial Infrared Port . . . 1-8 1.4.6 . . . Preloaded Software. . . . . . . . . . . . . . . . . . . . . . . . 1-8 1.4.7 . . . Notebook Expansion Capabilities . . . . . . . . . . . . . 1-8 1.5 . . . . Standard Test Features . . . . . . . . . . . . . . . . . . . . . . 1-9 1.6 . . . . Notebook Assemblies and Subassemblies . . . . . . . . . 1-9 1.6.1 . . . Cover-Display Assembly. . . . . . . . . . . . . . . . . . . . 1-