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Toshiba Personal Computer
TECRA M1
Maintenance Manual
TOSHIBA CORPORATION
File Number 960-436
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Copyright © 2003 by Toshiba Corporation. All rights reserved. Under the copyright laws, this manual cannot be reproduced in any form without the prior written permission of Toshiba. No patent liability is assumed with respect to the use of the information contained herein. Toshiba Personal Computer TECRA M1 Maintenance Manual First edition February 2003 Disclaimer The information presented in this manual has been reviewed and validated for accuracy. The included set of
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Preface This maintenance manual describes how to perform hardware service maintenance for the Toshiba Personal Computer TECRA M1. The procedures described in this manual are intended to help service technicians isolate faulty Field Replaceable Units (FRUs) and replace them in the field. SAFETY PRECAUTIONS Four types of messages are used in this manual to bring important information to your attention. Each of these messages will be italicized and identified as shown below. DANGER: “D
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The manual is divided into the following parts: Chapter 1 Hardware Overview describes the TECRA M1 system unit and each FRU. Chapter 2 Troubleshooting Procedures explains how to diagnose and resolve FRU problems. Chapter 3 Test and Diagnostics describes how to perform test and diagnostic operations for maintenance service. Chapter 4 Replacement Procedures describes the removal and replacement of the FRUs. Appendices The appendices describe the following: q Handling the LCD module
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Conventions This manual uses the following formats to describe, identify, and highlight terms and operating procedures. Acronyms On the first appearance and whenever necessary for clarification acronyms are enclosed in parentheses following their definition. For example: Read Only Memory (ROM) Keys Keys are used in the text to describe many operations. The key top symbol as it appears on the keyboard is printed in boldface type. Key operation Some operations require you to simulta
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vi TECRA M1 Maintenance Manual (960-436)
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Table of Contents Chapter 1 Hardware Overview 1.1 Features.......................................................................................................................1-1 1.2 System Unit Block Diagram..........................................................................................1-9 1.3 3.5-inch Floppy Disk Drive (USB External) ................................................................1-16 1.4 2.5-inch Hard Disk Drive ............................................
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2.12 LAN Troubleshooting................................................................................................ 2-49 2.13 Bluetooth Troubleshooting.......................................................................................... 2-50 2.14 Wireless LAN Troubleshooting .................................................................................. 2-54 2.15 Sound Troubleshooting...............................................................................................
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Chapter 3 Tests and Diagnostics 3.1 The Diagnostic Test......................................................................................................3-1 3.2 Executing the Diagnostic Test .......................................................................................3-3 3.3 Subtest Names.............................................................................................................3-7 3.4 System Test .............................................................
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3.29 SETUP ...................................................................................................................... 3-78 x TECRA M1 Maintenance Manual (960-436)
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Chapter 4 Replacement Procedures 4.1 General........................................................................................................................4-1 4.2 Battery Pack................................................................................................................4-9 4.3 Optional PC Card...................................................................................................... 4-12 4.4 Optional SD Card.............................................
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Appendices Appendix A Handling the LCD Module .............................................................................. A-1 Appendix B Board Layout...................................................................................................B-1 Appendix C Pin Assignments.............................................................................................. C-1 Appendix D Character Codes.......................................................................................
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TECRA M1 Maintenance Manual (960-436) xiii
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Chapter 1 Hardware Overview
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1 Hardware Overview 1-ii TECRA M1 Maintenance Manual (960-436)
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1 Hardware Overview Chapter 1 Contents 1.1 Features ...................................................................................................................... 1-1 1.2 System Unit Block Diagram......................................................................................... 1-9 1.3 3.5-inch Floppy Disk Drive (USB External)................................................................1-16 1.4 2.5-inch Hard Disk Drive.....................................................
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1 Hardware Overview Figures Figure 1-1 Front of the computer ...................................................................................... 1-7 Figure 1-2 System unit configuration.................................................................................. 1-8 Figure 1-3 System unit block diagram................................................................................ 1-9 Figure 1-4 3.5-inch FDD (USB External)..........................................................
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1.1 Features 1 Hardware Overview 1 Features 1.1 Features The Toshiba TECRA M1 Personal Computer uses extensive Large Scale Integration (LSI), and Complementary Metal-Oxide Semiconductor (CMOS) technology extensively to provide compact size, minimum weight, low power usage and high reliability. This computer incorporates the following features and benefits: The product configuration is BTO/CTO-compatible so that a system can be designed to suit a specific purpose. q Microprocessor The
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1 Hardware Overview 1.1 Features q Built-in HDD The computer has a 2.5-inch HDD. The following capacities are available. • 30/40/50/60GB q USB FDD A 3.5-inch FDD accommodates 2HD (1.44MB) or 2DD (720KB) disks. The FDD is connected to an external USB port. q Slim Select Bay A CD-ROM, DVD-ROM, CD-RW/DVD-ROM or DVD Multi drive, 2nd HDD or 2nd Battery can be installed in the Slim Select Bay. In addition, a second HDD may be purchased as an option for use in the system. q CD-ROM Drive
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1.1 Features 1 Hardware Overview q Display The display comes in the following three types: • 14.1” XGA-TFT color display, resolution 1,024×768, 16M colors • 14.1” SXGA+-TFT color display, resolution 1,400×1,050, 16M colors In addition, a video controller and an 32/64MB VRAM enables an external monitor to display 16M colors at a resolution of 1,024×768 pixels or 256 colors at a resolution of 1,400×1,050 pixels. q Keyboard An-easy-to-use 85(US)/86(UK)-key keyboard provides a numeric keyp
