Toshiba Tecra M5 Maintenance Manual

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[CONFIDENTIAL] Toshiba Personal Computer TECRA M5 Maintenance Manual TOSHIBA CORPORATION File Number 960-542 ...

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ii [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) Copyright © 2006 by Toshiba Corporation. All rights reserved. Under the copyright laws, this manual cannot be reproduced in any form without the prior written permission ...

[Page 3] Toshiba TECRA M5

TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] iii Preface This maintenance manual describes how to perform hardware service maintenance for the Toshiba Personal Computer TECRA M5. The procedures described in this manual are intended ...

[Page 4] Toshiba TECRA M5

iv [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) The manual is divided into the following parts: Chapter 1 Hardware Overview describes the TECRA M5 system unit and each FRU. Chapter 2 Troubleshooting Procedures explains how to diagn...

[Page 5] Toshiba TECRA M5

TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] v 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 clar...

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vi [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) Table of Contents Chapter 1 Hardware Overview 1.1 Features......................................................................................................................1-1 1.2 ...

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TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] vii 2.15 SD Card Slot Troubleshooting.................................................................................2-60 2.16 PCI Express Card Slot Troubleshooting.........................

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viii [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) 3.28 Sound Test program.................................................................................................3-77 3.29 SETUP ...................................................

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TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] ix 4.30 Wireless LAN antenna/Bluetooth antenna...............................................................4-80 4.31 LCD cover latch........................................................

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x [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) ...

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[CONFIDENTIAL] Chapter 1 Hardware Overview ...

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1 Hardware Overview 1-ii [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) ...

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1 Hardware Overview TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 1-iii Chapter 1 Contents 1.1 Features.......................................................................................................................1-1 1.2 Sy...

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1 Hardware Overview 1-iv [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) Figures Figure 1-1 Front of the computer.....................................................................................1-6 Figure 1-2 System unit configurati...

[Page 15] Toshiba TECRA M5

1.1 Features 1 Hardware Overview TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 1-1 1 Features 1.1 Features The Toshiba TECRA M5 Personal Computer uses extensive Large Scale Integration (LSI), and Complementary Metal-Oxide Semiconducto...

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1 Hardware Overview 1.1 Features 1-2 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542)  USB FDD A 3.5-inch USB FDD accommodates 2HD (1.44MB) or 2DD (720KB) disks.  Slim Bay An Optical drive, 2 nd HDD or 2 nd Battery pack can be...

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1.1 Features 1 Hardware Overview TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 1-3  Universal Serial Bus (USB2.0) Three USB ports are provided. The ports comply with the USB2.0 standard, which enables data transfer speeds 40 times ...

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1 Hardware Overview 1.1 Features 1-4 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542)  Docking interface port The docking interface port enables connection of an optional Advanced Port Replicator III Plus. It provides additional featu...

[Page 19] Toshiba TECRA M5

1.1 Features 1 Hardware Overview TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 1-5  Video-out jack The video jack enables to transfer NTSC or PAL data to external devices connected with S-Video cable.  Internal modem The comp...

[Page 20] Toshiba TECRA M5

1 Hardware Overview 1.1 Features The front of the computer is shown in figure 1-1. Figure 1-1 Front of the computer 1-6 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) ...

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1.1 Features 1 Hardware Overview The system unit configuration is shown in figure 1-2. Figure 1-2 System unit configuration TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 1-7 ...

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1 Hardware Overview 1.2 System Unit Block Diagram 1.2 System Unit Block Diagram Figure 1-3 is a block diagram of the system unit. Figure 1-3 System unit block diagram 1-8 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) ...

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1.2 System Unit Block Diagram 1 Hardware Overview TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 1-9 The system unit is composed of the following major components:  Processor • Intel ® Core TM Duo Processor (dual core) or Inte...

[Page 24] Toshiba TECRA M5

1 Hardware Overview 1.2 System Unit Block Diagram 1-10 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542)  Intel GMCH (North Bridge) • One Intel 945PM is used. • Features: – Supports Yonah Processor System Bus – System Me...

[Page 25] Toshiba TECRA M5

1.2 System Unit Block Diagram 1 Hardware Overview TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 1-11 – 652-ball 31×31×2.51mm BGA Package  Firmware Hub (FWH) • One STMicro M50FW080NB is used. • 8Mbits of flash memory are...

[Page 26] Toshiba TECRA M5

1 Hardware Overview 1.2 System Unit Block Diagram 1-12 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542)  EC/KBC (Embedded Controller/Keyboard Controller) • One Mitsubishi M306KA micon chip functions as both EC and KBC.  PSC (Po...

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1.2 System Unit Block Diagram 1 Hardware Overview TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 1-13  Wireless LAN • One PCI-Ex MiniCard • Intel Golan a/b/g  Super I/O • One LPC47N217 chip is used. • This gate ...

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1 Hardware Overview 1.3 3.5-inch Floppy Disk Drive (USB External) 1.3 3.5-inch Floppy Disk Drive (USB External) The 3.5-inch FDD is a thin, high-performance reliable drive that supports 720KB (formatted) 2DD and 1.44MB (formatted) 2HD disks. ...

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1.4 2.5-inch Hard Disk Drive 1 Hardware Overview 1.4 2.5-inch Hard Disk Drive The removable HDD is a random access non-volatile storage device. It has a non-removable 2.5-inch magnetic disk and mini-Winchester type magnetic heads. The computer...

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1 Hardware Overview 1.4 2.5-inch Hard Disk Drive 1-16 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) Table 1-2 2.5-inch HDD specifications (2/5) Specifications Items FUJITSU G8BC00028610 HITACH GST G8BC00029610 TOSHIBA HDD2D35BZ...

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1.4 2.5-inch Hard Disk Drive 1 Hardware Overview TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 1-17 Table 1-2 2.5-inch HDD specifications (4/5) Specifications Items TOSHIBA HDD2D30BZK01 FUJITSU G8BC00028A10 HITACHI GST G8BC00029A...

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1 Hardware Overview 1.5 CD-ROM Drive 1.5 CD-ROM Drive The CD-ROM drive accommodates either 12 cm (4.72-inch) or 8 cm (3.15-inch) CDs. They provide high-performance, 24-speed plays on a maximum (reads 3,600 KB per second). The CD-ROM drive is ...

[Page 33] Toshiba TECRA M5

1.6 DVD-ROM Drive 1 Hardware Overview TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 1-19 1.6 DVD-ROM Drive The DVD-ROM drive accommodates either 12cm (4.72-inch) or 8cm (3.15-inch) DVDs. This drive plays DVDs at maximum 8-speed and rea...

[Page 34] Toshiba TECRA M5

1 Hardware Overview 1.7 CD-R/RW&DVD-ROM Drive 1-20 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) 1.7 CD-R/RW&DVD-ROM Drive The CD-R/RW&DVD-ROM drive accommodates either 12 cm (4.72-inch) or 8 cm (3.15- inch) CDs, CD-R/RW and...

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1.7 CD-R/RW&DVD-ROM Drive 1 Hardware Overview TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 1-21 Table 1-5 CD-R/RW&DVD-ROM drive specifications (2/2) Specifications Item TSST TS-L462C (G8CC0002V420) Burst Transfer rate(Mbyt...

[Page 36] Toshiba TECRA M5

1 Hardware Overview 1.8 DVD-Super Multi Drive 1-22 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) 1.8 DVD-Super Multi Drive This drive is a combination of DVD-ROM and DVD±R/±RW/-RAM Drive. It is full-size and runs either 12cm (4.72-i...

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1.8 DVD-Super Multi Drive 1 Hardware Overview TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 1-23 Table 1-6 DVD Super Multi drive specifications (2/2) Item PCC UJ-841 (G8CC0002T) ATAPI Burst (Mbytes/s) 33.3 (Ultra DMA mode 2) 16.6 ...

[Page 38] Toshiba TECRA M5

1 Hardware Overview 1.9 Keyboard 1.9 Keyboard The keyboard is mounted 85(US)/87(UK) keys that consist of character key and control key, and in conformity with JIS. The keyboard is connected to membrane connector on the system board and controll...

[Page 39] Toshiba TECRA M5

1.10 TFT Color Display 1 Hardware Overview 1.10 TFT Color Display The TFT color display consists of 14.1-inch XGA/SXGA+ LCD module and FL inverter board. 1.10.1 LCD Module The LCD module used for the TFT color display uses a backlight as the ...

[Page 40] Toshiba TECRA M5

1 Hardware Overview 1.10 TFT Color Display 1-26 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) Table 1-7 LCD module specifications (3/3) Specifications Item 14.1-inch SXGA+ TFT (G33C00022210) Number of Dots 1,400 (W) x 1,050 (H) Do...

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1.10 TFT Color Display 1 Hardware Overview TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 1-27 1.10.2 FL Inverter Board The FL inverter board supplies a high frequency current to illuminate the LCD module. Table 1-8 lists the FL invert...

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1 Hardware Overview 1.11 Power Supply 1-28 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) 1.11 Power Supply The power supply supplies many different voltages to the system board and performs the following functions: 1. Judges that the...

[Page 43] Toshiba TECRA M5

1.11 Power Supply 1 Hardware Overview TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 1-29 Table 1-9 Power supply output rating Name Voltage (V) Use PPV 0.300-1.500 CPU PTV 1.05 CPU, MCH, ICH7-M 1R5-P1V 1.5 CPU, MCH, ICH7-M, PC...

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1 Hardware Overview 1.12 Batteries 1-30 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) 1.12 Batteries The computer has three types of batteries as follows:  Main battery pack  RTC battery  Secondary battery pack (optional ...

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1.12 Batteries 1 Hardware Overview TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 1-31 1.12.2 Battery Charging Control Battery charging is controlled by a power supply microprocessor. The microprocessor controls whether the charge is o...

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1 Hardware Overview 1.12 Batteries 1-32 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) 1.12.3 RTC battery The RTC battery provides power to keep the current date, time and other setup information in memory while the computer is turned o...

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1.13 AC Adapter 1 Hardware Overview TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 1-33 1.13 AC Adapter The AC adapter is also used to charge the battery. Table 1-13 lists the AC adapter specifications. Table 1-13 AC adapter specificat...

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1 Hardware Overview 1.13 AC Adapter 1-34 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) ...

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[CONFIDENTIAL] Chapter 2 Troubleshooting Procedures ...

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2 Troubleshooting Procedures 2-ii [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) ...

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2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-iii Chapter 2 Contents 2.1 Troubleshooting..........................................................................................................2-1 2.2...

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2 Troubleshooting Procedures 2-iv [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) 2.8 Display Troubleshooting ..........................................................................................2-44 Procedure 1 External Monitor Che...

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2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-v 2.16 PCI ExpressCard Slot Troubleshooting....................................................................2-61 1. Gigabit Ether ExpressCard...............

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2 Troubleshooting Procedures 2-vi [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) Figures Figure 2-1 Troubleshooting flowchart ..................................................................................2-3 Figure 2-2 Printer por...

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2.1 Troubleshooting 2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-1 2 2.1 Troubleshooting Chapter 2 describes how to determine if a Field Replaceable Unit (FRU) in the computer is causing the computer ...

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2 Troubleshooting Procedures 2.2 Troubleshooting Flowchart 2-2 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) 2.2 Troubleshooting Flowchart Use the flowchart in Figure 2-1 as a guide for determining which FRU malfunctions. Before going...

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2.2 Troubleshooting Flowchart 2 Troubleshooting Procedures Figure 2-1 Troubleshooting flowchart (1/2) TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-3 ...

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2 Troubleshooting Procedures 2.2 Troubleshooting Flowchart Figure 2-1 Troubleshooting flowchart (2/2) 2-4 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) ...

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2.2 Troubleshooting Flowchart 2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-5 If the diagnostics program cannot detect an error, the problem may be intermittent. The Running Test program should be execute...

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2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting 2-6 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) 2.3 Power Supply Troubleshooting The power supply controls many functions and components. To determine if the power supply...

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2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-7 Procedure 2 Error Code Check If the power supply microprocessor detects a malfunction, it indicates the error code as sho...

[Page 62] Toshiba TECRA M5

2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting 2-8 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) Check 1 Compare the patterns in the hexadecimal error code to the tables below.  AC Adaptor Error code Meaning 10...

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2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-9  S3V output (P60) Error code Meaning 40h S3V voltage is 3.47V or less when the computer is powered on/off. 45h S3V ...

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2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting 2-10 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542)  1R8-B1V output (P64:CH0) Error code Meaning 80h 1R8-B1V voltage is over 2.16V when the computer is powered on/off. ...

[Page 65] Toshiba TECRA M5

2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-11  1R8-B1V output (P64:CH1) Error code Meaning C0h 1R8-B1V voltage is over 2.16V when the computer is powered on/off. ...

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2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting 2-12 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) Check 2 In the case of error code 10h or 12h:  Make sure the AC adaptor cord and AC power cord are firmly plugged into...

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2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures Procedure 3 Connection Check The power supply wiring diagram is shown below: Any of the connectors may be disconnected. Perform Check 1. Check 1 Disconnect the AC power cord from...

[Page 68] Toshiba TECRA M5

2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting 2-14 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) Procedure 4 Charge Check The power supply may not charge the battery pack. Perform the following procedures: 1. Reinstal...

[Page 69] Toshiba TECRA M5

2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-15 Procedure 5 Replacement Check The system board processor module may be disconnected or damaged. Disassemble the computer ...

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2 Troubleshooting Procedures 2.4 System Board Troubleshooting 2-16 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) 2.4 System Board Troubleshooting This section describes how to determine if the system board and CPU are defective or not f...

[Page 71] Toshiba TECRA M5

2.4 System Board Troubleshooting 2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-17 Procedure 1 Message Check When the power is turned on, the system performs the Initial Reliability Test (IRT) installed i...

[Page 72] Toshiba TECRA M5

2 Troubleshooting Procedures 2.4 System Board Troubleshooting 2-18 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) Check 2 The IRT checks the system board. When the IRT detects an error, the system stops or an error message appears. If o...

[Page 73] Toshiba TECRA M5

2.4 System Board Troubleshooting 2 Troubleshooting Procedures Procedure 2 Printer Port LED Check on Boot Mode The printer port LED displays the IRT status and test status by turning lights on and off as an eight-digit binary value for boot mode...

[Page 74] Toshiba TECRA M5

2 Troubleshooting Procedures 2.4 System Board Troubleshooting To use the printer port LED, follow the steps below: 1. Turn on the computer’s power and set it to boot mode. 2. Turn off the computer’s power. 3. Connect Advanced Port Repl...

[Page 75] Toshiba TECRA M5

2.4 System Board Troubleshooting 2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-21 Table 2-5 Printer port LED boot mode status (1/9) LED Status Test item Contents Permission of A20 and clear of softwa...

[Page 76] Toshiba TECRA M5

2 Troubleshooting Procedures 2.4 System Board Troubleshooting 2-22 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) Table 2-5 Printer port LED boot mode status (2/9) LED Status Test item Contents B9h Saving of key scan code Setting...

[Page 77] Toshiba TECRA M5

2.4 System Board Troubleshooting 2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-23 Table 2-5 Printer port LED boot mode status (3/9) LED Status Test item Message Prohibition of cache Permission of L1...

[Page 78] Toshiba TECRA M5

2 Troubleshooting Procedures 2.4 System Board Troubleshooting 2-24 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) Table 2-5 Printer port LED boot mode status (4/9) LED Status Test item Contents Expansion memory checksum check ...

[Page 79] Toshiba TECRA M5

2.4 System Board Troubleshooting 2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-25 Table 2-5 Printer port LED boot mode status (5/9) LED Status Test item Contents (06h) Battery discharging current co...

[Page 80] Toshiba TECRA M5

2 Troubleshooting Procedures 2.4 System Board Troubleshooting 2-26 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) Table 2-5 Printer port LED boot mode status (6/9) LED Status Test item Contents 08h PCI bus initialization (connection ...

[Page 81] Toshiba TECRA M5

2.4 System Board Troubleshooting 2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-27 Table 2-5 Printer port LED boot mode status (7/9) LED Status Test item Contents 0Fh INIT_SYSTEM (Initialization of s...

[Page 82] Toshiba TECRA M5

2 Troubleshooting Procedures 2.4 System Board Troubleshooting 2-28 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) Table 2-5 Printer port LED boot mode status (8/9) LED Status Test item Contents (1Eh) (In the case of “Boot”) Chec...

[Page 83] Toshiba TECRA M5

2.4 System Board Troubleshooting 2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-29 Table 2-5 Printer port LED boot mode status (9/9) LED Status Test item Contents (20h) HW initialization before Boot,...

[Page 84] Toshiba TECRA M5

2 Troubleshooting Procedures 2.4 System Board Troubleshooting 2-30 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) Check 1 If error code 1Eh or 20h is displayed, go to the following Sections: Section 2.6 HDD Troubleshooting” Check 2 ...

[Page 85] Toshiba TECRA M5

2.4 System Board Troubleshooting 2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-31 Procedure 3 Diagnostic Test Program Execution Check Execute the following tests from the Diagnostic Test Menu. Refer to Ch...

[Page 86] Toshiba TECRA M5

2 Troubleshooting Procedures 2.4 System Board Troubleshooting 2-32 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) Procedure 4 Replacement Check The system board connectors may be disconnected. Disassemble the computer following the step...

[Page 87] Toshiba TECRA M5

2.5 USB FDD Troubleshooting 2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-33 2.5 USB FDD Troubleshooting This section describes how to determine if the USB FDD is functioning properly. Perform the steps ...

[Page 88] Toshiba TECRA M5

2 Troubleshooting Procedures 2.5 USB FDD Troubleshooting 2-34 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) Procedure 2 Diagnostic Test Program Execution Check Insert the Diagnostics Disk in the USB FDD, turn on the computer and run the...

[Page 89] Toshiba TECRA M5

2.5 USB FDD Troubleshooting 2 Troubleshooting Procedures Procedure 3 Connector Check and Replacement Check The USB FDD is connected to the System Board. Check 1 When using the USB port, make sure the USB FDD cable is firmly connected to CN462...

[Page 90] Toshiba TECRA M5

2 Troubleshooting Procedures 2.6 HDD Troubleshooting 2-36 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) 2 2.6 HDD Troubleshooting This section describes how to determine if the HDD is functioning properly. Perform the steps below st...

[Page 91] Toshiba TECRA M5

2.6 HDD Troubleshooting 2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-37 Procedure 2 Partition Check Insert the Toshiba MS-DOS system disk and restart the computer with U key holding down. Perform the fo...

[Page 92] Toshiba TECRA M5

2 Troubleshooting Procedures 2.6 HDD Troubleshooting 2-38 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) Procedure 3 Format Check The computer’s HDD is formatted using the low level format program and the MS-DOS FORMAT program. To f...

[Page 93] Toshiba TECRA M5

2.6 HDD Troubleshooting 2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-39 Procedure 4 Diagnostic Test Program Execution Check The HDD test program is stored in the Diagnostics Disk. Perform all of the HDD ...

[Page 94] Toshiba TECRA M5

2 Troubleshooting Procedures 2.6 HDD Troubleshooting Procedure 5 Connector Check and Replacement Check The HDD may be disconnected, or the HDD or the system board may be damaged. Disassemble the computer following the steps described in Chapte...

[Page 95] Toshiba TECRA M5

2.7 Keyboard and Touch pad Troubleshooting 2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-41 2.7 Keyboard and Touch pad Troubleshooting To determine if the computer’s keyboard or touch pad is functioning ...

[Page 96] Toshiba TECRA M5

2 Troubleshooting Procedures 2.7 Keyboard and Touch pad Troubleshooting Procedure 2 Connector Check and Replacement Check The keyboard, touch pad or sensor/switch board may be disconnected or damaged. Disassemble the computer following the ste...

[Page 97] Toshiba TECRA M5

2.7 Keyboard and Touch pad Troubleshooting 2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-43 Check 5 The system board may be damaged. Replace it with a new one following the instructions in Chapter 4, Repl...

[Page 98] Toshiba TECRA M5

2 Troubleshooting Procedures 2.8 Display Troubleshooting 2.8 Display Troubleshooting This section describes how to determine if the computer’s display is functioning properly. Start with Procedure 1 and continue with the other procedures as i...

[Page 99] Toshiba TECRA M5

2.8 Display Troubleshooting 2 Troubleshooting Procedures TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-45 If the connection is loose, reconnect firmly and restart the computer. If there is still an error, go to Procedure 4. Procedure...

[Page 100] Toshiba TECRA M5

2 Troubleshooting Procedures 2.9 Optical Drive Troubleshooting 2-46 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542) 2.9 Optical Drive Troubleshooting This section describes how to determine if the optical drive (CD-ROM, DVD-ROM, CD- R/R...