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Maintenance Manual
Extensa™™ 57x Series
Notebook Computers
9811323-0001
May 1996
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Copyright (©) 1996 Texas Instruments Incorporated All Rights Reserved — Printed in U.S.A. Extensa™™ 57x Series Notebook Computers 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, reco
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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 Poin
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2.5.1 . . . Installing an External Keyboard/Mouse . . . . . . . 2-4 2.5.2 . . . Installing External Parallel Printer . . . . . . . . . . . . 2-6 2.5.3 . . . Installing External Serial Port Device . . . . . . . . . 2-7 2.5.4 . . . Installing External SVGA Monitor . . . . . . . . . . . . 2-8 2.5.5 . . . Installing SIR Devices. . . . . . . . . . . . . . . . . . . . . . 2-9 2.6 . . . . Installing the AC Power Adapter . . . . . . . . . . . . . . . 2-10 2.7 . . . . Initial System Checkout . . . . .
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4.2.4 . . . Hard Disk Subsystem . . . . . . . . . . . . . . . . . . . . . 4-6 4.2.5 . . . Floppy Diskette Drive Subsystem. . . . . . . . . . . . . 4-7 4.2.6 . . . CD-ROM Subsystem . . . . . . . . . . . . . . . . . . . . . . 4-7 4.2.7 . . . PCMCIA Subsystem . . . . . . . . . . . . . . . . . . . . . . . 4-7 4.2.8 . . . Sound Subsystem (Model Dependent) . . . . . . . . . 4-8 4.2.9 . . . Power Subsystem. . . . . . . . . . . . . . . . . . . . . . . . . 4-8 5 Troubleshooting Procedures 5.1 . . . .
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6.5.7 . . . Removing and Replacing the LCD Status . . . . . . . Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11 6.5.8 . . . Removing/Replacing the Top Case Assembly . . . . 6-12 6.5.9 . . . Removing/Replacing the Glidepad Assembly . . . . 6-12 6.5.10 . . Removing/Replacing the IR/Sound Assembly . . . 6-12 6.5.11 . . Removing/Replacing the Power Supply Board . . . 6-13 6.5.12 . . Removing/Replacing the CMOS Battery . . . . . . . 6-13 6.5.13 . . Removing/Replacing th
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Preface Introduction This manual provides installation, operation and servicing data for the Extensa™ 57x Series Notebook Computers. Intended Audience This manual is primarily intended for use by qualified service technicians but contains information useful to non-technical users. Contents This manual contains six sections and reference appendices including: • Section 1: General Description — Introduces the main features of the notebook; provides a list of physical and electrical specifications.
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Other Manuals About the System The following documents provide additional information related to the Extensa 57x Series Notebooks: • Extensa™™ 57x Series Notebook Computer User’s Reference Manual, contains reference information regarding the Extensa 57x series software. ® • Windows 95 Help (online) • PC-Doctor Help and Technical Reference (online) Ordering Parts and Supplies To order a copy of any TI publication or to order option kits, spare parts or supplies for your system, contact your T
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1 General Description 1.1 Introduction This manual contains field and factory level servicing information for the Texas Instruments Extensa™ 57x Series of Notebook Computers (Figure 1-1). This section provides a general overview and specifications for the Extensa 57x Series Notebook Computers. Figure 1-1 Extensa 57xSeries Notebook Computer 1.2 Product Models Table 1-1 summarizes the features shipped with the notebook for the product models initially available in the Extensa 57x family of no
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Table 1-1 Extensa 57x Series Notebook Computers Features Model Model Model Model 570CD 575CD 570CDT 575CDT 11.3" Dual Scan, SVGA XX Color LCD 10.4" Active Matrix (TFT), XX SVGA Color LCD 1.44 MB Floppy Drive XX X X Module CD-ROM Drive Module X X X X Windows 95 X X X X Application Software X X 16-Bit Stereo Sound X X X X HDD 810 Million Bytes X X HDD 1200 Million Bytes X X 1.3 International Product Versions The Extensa 57x Series Notebooks are available in domestic and international con
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1.4 Product Overview All members of the Extensa 57x Series are high performance notebooks powered by the Pentium™ Processor and Windows 95 Operating System software. As a standard feature, all members of the Extensa 57x family also contain the following features: • 100 MHz Pentium Processor with 16K Internal Cache Memory. • 8 MB of RAM memory standard, user-expandable to 40 MB (easy access via door at bottom of notebook). • 256 KB L2 Cache. • 128 bytes of battery-backed up CMOS RAM. • H
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• AC Adapter with autosensing (100 VAC to 240 VAC, 50 to 60 Hz); 36 Watts of DC output power. • 8.4 Volt, 4200 mAH capacity, Nickel-Metal Hydride (NiMH) primary battery pack. • Provisions for secondary 10.8 Volt Lithium-Ion Battery Pack in Floppy Drive cavity (if Floppy Drive or CD ROM Player not installed). • Power management features for longer portable operation away from AC power. • Full range of external ports including: EPP/ECP Parallel Port, Serial Port, External VGA Port, PS/2™ Po
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1.4.1 External Ports As shown in Figure 1-3, the notebook computer contains the following external ports: • Serial Infrared (SIR) Port for wireless connection with a similarly equipped printer or computer • 9-Pin Serial Port for attaching any RS-232 type serial device to the Notebook • 15-Pin External VGA Monitor Port for attaching an external monitor • 6-Pin PS/2 Port to attach an external Keyboard or Mouse • Audio In/Out and External Microphone Input • Expansion Bus Port for attaching
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1.4.2 Glidepad Pointing Device All members of the Extensa 57x family feature a built-in glidepad pointing device located near the center of the keyboard’s palmrest. With light finger pressure, the cursor can quickly be positioned to the desired point; a quick double tap on the glidepad and you have selected an object. Two select buttons (switches) are located along the front edge of the notebook for use in the traditional select/drag features of a mouse device. . Glidepad Select Buttons F
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Note: The Extensa Series Notebook Computer User’s Reference Manual con- n tains descriptions of keyboard special function keys. NumLk F11 F12 Prt Sc Scroll Pause F4 F6 F7 F8 F9 F10 Esc F1 F2 F3 F5 Pad SysRq Lock Break Backspace 7 8 9 * @ % & ^ Home 7 0 4 5 6 8 9 1 2 3 Home PgUp 6 { } 4 5 O P Q R T Y U | W E I PgUp [ \ Tab ] PgDn 1 Caps 23 Enter S D F G H J A K L Lock PgOn End . Shift / Shift C V N M Z X B End Ins Del ~ Fn Ctrl Alt Alt Ins Del ` Figure 1-5 Extensa Keyboard 1.4.3.1 Cont
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1.4.5 Wireless Connection With Serial Infrared Port The Extensa Series notebooks are equipped with a Serial Infrared (IR) port that offers wireless communication with a variety of IRDA™ compliant devices made by other manufacturers. Note: Prior to communicating with an external device equipped with a serial n infrared interface, the appropriate third-party drivers must be installed on your notebook. 1.4.6 Preloaded Software All members of the Extensa 57x Notebook family are preloaded with
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1.5 Standard Test Features The Extensa Series Notebook Computers use modular design and built-in test features to reduce the mean time to repair. A power on self test program automatically verifies the operational state of the primary circuits. Also, the notebook contains a powerful suite of diagnostic tests called PC-Doctor, (described in detail in Appendix B) that can perform additional levels of diagnostic testing. 1.6 Notebook Assemblies and Subassemblies The Extensa Series Notebo
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Display Assembly Keyboard Assembly Status LCD Assembly Glidepad Assembly Power Supply Board IR/Sound Board Display Assembly Floppy Drive/CD-ROM Bay Main Board Display Cable Interface Board Inverter Board Figure 1-6 Notebook Assemblies 1.6.1 Cover-Display Assembly The Cover-Display Assembly contains the LCD screen and associated high voltage power supply and video circuitry. The Cover-Display Assembly contains several field-replaceable components including: • LCD Assembly Inverter Board •
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1.6.2 System Base Assembly As shown in Figure 1-6, the majority of the notebook’s field replaceable units (FRUs) are located in the system base assembly. These FRUs include: • Main Board Assembly • Hard Disk Drive Assembly • Up to two Dual Inline Memory Modules • LCD Status Assembly • Floppy Drive Module • IR/Sound Board Assembly • Power Supply Board Assembly • Battery Pack Assembly • Top Case Assembly • Glidepad Assembly • Keyboard Assembly • CMOS Battery Assembly • HDD Connector Boa
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Table 1-3 Extensa 57x Notebook Features Models Specifications Models 570CD/575CD 570CDT/575CDT Processor Pentium 100 MHz Pentium 100 MHz Memory: Standard: 8 MB 8 MB Maximum: 40 MB 40 MB Cache: 256 KB L2 Cache 256 KB L2 Cache Display LCD Type: 11.3 inch, SVGA, Dual 10.4 inch, SVGA, Dual Scan Color Scan Color/ Active Matrix Color Simultaneous Yes Yes LCD/Ext. SVGA Video RAM Size: 1 MB 1 MB Video Bus PCI Bus with Graphics PCI Bus with Graphics Accelerator Accelerator Keyboard/Pointing Devic
