Page 1 1998 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.
Page 2: Safety Precautions
NOTE: A Note contains general information that relates to your safe maintenance services. Improper repair of the computer may result in safety hazards. Toshiba requires service technicians and authorized dealers or service providers to ensure the following safety precautions are adhered to strictly.
Page 3 File No. 960-140 The manual is divided into the following parts: Chapter 1 Hardware Overview describes the system unit and each FRU. Chapter 2 Troubleshooting Procedures explains how to diagnose and resolve FRU problems. Chapter 3 Tests and Diagnostics describes how to perform test and diagnostic operations for maintenance service.
Page 4 File No. 960-140 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.
Page 5: Table Of Contents
File No. 960-140 Table of Contents Chapter 1 Hardware Overview Features........................1-1 System Unit Block Diagram..................1-5 3.5-inch External FDD....................1-9 2.5-inch Hard Disk Drive..................1-10 Keyboard......................1-11 TFT Color LCD....................1-12 Power Supply .......................1-14 Batteries .......................1-16 Chapter 2 Troubleshooting Procedures Troubleshooting......................2-1 Troubleshooting Flowchart..................2-2 Power Supply Troubleshooting................2-6 System Board Troubleshooting................2-14 FDD Troubleshooting...................2-25 HDD Troubleshooting ..................2-28...
Page 6 File No. 960-140 Display Test......................3-16 Floppy Disk Test ....................3-20 Printer Test......................3-22 3.10 Async Test......................3-24 3.11 Hard Disk Test .....................3-26 3.12 Real Timer Test....................3-30 3.13 NDP Test ......................3-32 3.14 Expansion Test .....................3-33 3.15 Sound Test ......................3-35 3.16 Error Code and Error Status Names..............3-36 3.17 Hard Disk Test Detail Status.................3-39 3.18...
Page 7 File No. 960-140 4.13 I/O Adapter Board....................4-35 Appendices Appendix A Handling the LCD Module ................. A-1 Appendix B Board Layout.....................B-1 Appendix C Pin Assignments..................C-1 Appendix D Keyboard Scan/Character Codes ..............D-1 Appendix E Key Layout ....................E-1 Appendix F Wiring Diagrams ..................F-1 Appendix G BIOS Rewrite Procedures ................G-1 Appendix H...
Page 8: Chapter 1 Hardware Overview
File No. 960-140 Chapter 1 Hardware Overview...
Page 9 File No. 960-140 1-ii...
Page 10 File No. 960-140 Chapter 1 Contents Features........................1-1 System Unit Block Diagram..................1-5 3.5-inch External FDD....................1-9 2.5-inch Hard Disk Drive..................1-10 Keyboard......................1-11 TFT Color LCD....................1-12 1.6.1 TFT Color LCD Module..............1-12 1.6.2 FL Inverter Board ................1-13 Power Supply .......................1-14 Batteries .......................1-16 1.8.1 Main Battery..................1-16 1.8.2 Battery Icon..................1-16 1.8.3...
Page 11 File No. 960-140 Tables Table 1-1 3.5-inch FDD specifications................1-9 Table 1-2 2.5-inch HDD specifications................1-9 Table 1-3 LCD specifications...................1-12 Table 1-4 FL inverter board specifications...............1-13 Table 1-5 Power supply board output rating..............1-15 Table 1-6 Battery specifications..................1-16 Table 1-7 Time required for quick charges................1-17 Table 1-8 RTC battery charging/data preservation time...........1-17 1-iv...
Page 12: Features
File No. 960-140 Features Features The computer uses Toshiba's advanced 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: Microprocessor ®...
Page 13 File No. 960-140 Universal Serial Bus (USB) The USB enables daisy-chain connection of up to 127 USB-equipped devices and 12Mbps serial data transfer. It is designed for easy configuration by a PnP operating system and provides hot insertion/ejection capability. The USB port is only on the Enhanced Port Replicator.
Page 14 File No. 960-140 External FDD A 3.5-inch external FDD is connected to the PC card slot and accommodates both 2HD (1.44MB) and 2DD (720KB) disks.
Page 15: Figure 1-1 Front Of The Computer
File No. 960-140 The computer is shown in Figure 1-1. The system unit configuration is shown in Figure 1- Figure 1-1 Front of the computer Figure 1-2 System unit configuration...
Page 16: System Unit Block Diagram
File No. 960-140 System Unit Block Diagram Figure 1-3 is a block diagram of the system unit. Figure 1-3 System unit block diagram...
Page 17 File No. 960-140 The system unit is composed of the following major components: Intel Pentium processor Intel 166MHz Pentium processor with MMX Technology. The math co-processor and 32KB cache memory are integrated into the Pentium. Standard RAM 32 MB, four 4M x 16-bit EDO DRAM chips 3.3 volt operation No parity bit Access time 60 ns...
Page 18 File No. 960-140 System Controller Gate Array This gate array has the following functions: CPU interface/control DRAM control PCI master/slave interface Write buffer (CPU-DRAM, CPU-PCI, PCI-DRAM) Prefetch buffer (CPU-PCI, PCI-DRAM) Mobile-PC/PCI support DMA function Serial interrupt function Power management control Suspend/resume control CPU stop clock function PCI clock stop function...
Page 19 File No. 960-140 Sound Controller One OPL3-SA3 is used. The OPL3-SA3 incorporates OPL3 FM synthesizer, Digital Analog Converter (DAC) and MPU401 MIDI interface.
Page 20: Inch External Fdd
File No. 960-140 3.5-inch External FDD The 3.5inch external FDD is a thin, high performance reliable drive that supports 720KB (formatted) 2DD and 1.44MB (formatted) 2HD disks. The FDD can be connected to the PC card slot . The FDD is shown in Figure 1-4. The specifications for the FDD are listed in Table 1-1. Figure 1-4 3.5-inch FDD Table 1-1 3.5-inch FDD specifications Item...
Page 21: Inch Hard Disk Drive
File No. 960-140 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 supports 2.1GB HDD or 3.2GB HDD. The HDD is shown in Figure 1-5. Specifications are listed in Table 1-2. Figure 1-5 2.5-inch HDD Table 1-2 2.5-inch HDD specifications Items...
Page 22: Keyboard
File No. 960-140 Keyboard The 84-(USA) or 86-(European) key keyboard is mounted on the system unit. The keyboard is connected to the keyboard controller on the system board through a 24-pin flat cable. The keyboard is shown in Figure 1-6. See Appendix E for optional keyboard configurations.
Page 23: Tft Color Lcd
File No. 960-140 TFT Color LCD The display panel contains a TFT color LCD module, a fluorescent lamp (FL) and an FL inverter board. 1.6.1 TFT Color LCD Module The LCD enables display of up to 256K colors at a resolution 800 x 480 pixels. The LCD is shown in Figure 1-7.
Page 24: Fl Inverter Board
File No. 960-140 1.6.2 FL Inverter Board The FL inverter board supplies high frequency current to light the LCD’s Fluorescent Lamp. Specifications for the FL inverter are listed in Table 1-4. Table 1-4 FL inverter board specifications Item Specifications Input Voltage Power Output...
Page 25: Power Supply
File No. 960-140 Power Supply The power supply supplies ten kinds of voltages to the system board, has one microprocessor and it operates at 4MHz. It performs the following functions: 1. Determines if the AC adapter or battery is connected to the computer. 2.
Page 26: Table 1-5 Power Supply Board Output Rating
File No. 960-140 The power supply output rating is specified in Table 1-5. Table 1-5 Power supply board output rating Power supplied Yes/No Name Voltage(V) Suspend Power off No battery +1.8V CPU, CLKGEN, System +2.5V Controller GA CLKGEN +3.3V System Controller GA, PC Card Slot, VGA Controller, I/O &...
Page 27: Batteries
File No. 960-140 Batteries The computer has tow types of batteries: Main battery pack RTC battery The battery specifications are listed in Table 1-6. Table 1-6 Battery specifications Battery name Material Output voltage Capacity Main battery Lithium-Ion 10.8 V 1,200 mAh 2,400 mAh (High capacity) RTC battery Nickel Metal Hydride...
Page 28: Battery Charging Control
File No. 960-140 1.8.3 Battery Charging Control Battery charging is controlled by a power supply microprocessor that is mounted on the system board. The microprocessor controls whether the charge is on or off and detects a full charge when the Universal AC Adapter and battery are connected to the computer. The system charges the battery using quick charge or trickle charge.
Page 29 File No. 960-140 1-18...
Page 30: Chapter 2 Troubleshooting Procedures
File No. 960-140 Chapter 2 Troubleshooting Procedures...
Page 31 File No. 960-140 2-ii...
Page 32 File No. 960-140 Chapter 2 Contents Troubleshooting......................2-1 Troubleshooting Flowchart..................2-2 Power Supply Troubleshooting................2-6 Procedure 1 Power Status Check.............2-6 Procedure 2 Error Code Check..............2-8 Procedure 3 Connection Check..............2-11 Procedure 4 Quick Charge Check ............2-12 Procedure 5 Replacement Check............2-13 System Board Troubleshooting................2-14 Procedure 1 Message Check ..............2-15 Procedure 2 Printer Port LED Check on Boot Mode......2-17...
Page 33 File No. 960-140 Pointing Device Troubleshooting................2-36 Procedure 1 Diagnostic Test Program Execution Check......2-36 Procedure 2 Connector and Replacement Check ........2-36 Display Troubleshooting..................2-37 Procedure 1 Diagnostic Test Program Execution Check......2-37 Procedure 2 Connector and Replacement Check........2-38 Figures Figure 2-1 Troubleshooting flowchart ................2-3 Figure 2-2 Printer port LED....................2-17 Tables Table 2-1 Battery icon.......................2-6...
Page 34: Troubleshooting
The following tools are necessary for implementing the troubleshooting procedures: 1. Diagnostics Disk 2. Phillips screwdriver (2 mm) 3. Toshiba MS-DOS system disk(s) (You must install the following onto the disk: SYS.COM, FORMAT.COM, FDISK.COM and FDISK.EXE) 4. 2DD or 2HD formatted work disk for floppy disk drive testing 5.
Page 35: Troubleshooting Flowchart
Verify with the customer that Toshiba Windows 95 is installed on the hard disk. Non- Toshiba operating systems can cause the computer to malfunction. Make sure all optional equipment is removed from the computer. Make sure the floppy disk drive is empty.
Page 36 File No. 960-140 Figure 2-1 Troubleshooting flowchart (1/2)
Page 37 File No. 960-140 Figure 2-1 Troubleshooting flowchart (2/2) If the diagnostics program cannot detect an error, the problem may be intermittent. The Running Test program should be executed several times to isolate the problem. Check the Log Utilities function to confirm which diagnostic test detected an error, then perform the appropriate troubleshooting procedures as follows: 1.
Page 38 File No. 960-140 4. If an error is detected on the keyboard test, perform the Keyboard Troubleshooting Procedures in Section 2.7. 5. If an error is detected on the display test, perform the Display Troubleshooting Procedures in Section 2.9.
Page 39: Power Supply Troubleshooting
File No. 960-140 Power Supply Troubleshooting The power supply controls many functions and components. To determine if the power supply is functioning properly, start with Procedure 1 and continue with the other Procedures as instructed. The procedures described in this section are: Procedure 1: Power Status Check Procedure 2: Error Code Check Procedure 3: Connection Check...
Page 40 If the battery icon does not light orange or green, go to Procedure 4. CAUTION: Use only an AC adapter manufactured for the Libretto 100CT. If you use another AC adapter, the computer's power supply may malfunction or a fuse on the...
Page 41 File No. 960-140 Procedure 2 Error Code Check If the power supply microprocessor detects a malfunction, the DC IN icon blinks orange. The blink pattern indicates an error as shown below. Start Off for 2 seconds Error code (8 bit) “1”...
Page 42 File No. 960-140 Main Battery Error code Meaning Battery voltage is over the limit (13.46V). Main battery charge current is over the limit (2.53A). Mai battery discharge current is over the maximum allowed limit when there is no load (0.5A). Main battery charge current is over limit (1.80A) when there .
Page 43 File No. 960-140 B2V output Error code Meaning B2V voltage is over the limit (2.88V). B2V voltage is under the limit (2.13V) when power supply is turned on. B2V voltage is under the limit (2.13V) when the computer is booting B2V voltage is over the limit (2.13V) when power supply is turned off.
Page 44 File No. 960-140 Procedure 3 Connection Check The power supply wiring diagram is shown below: Any of the connectors may be disconnected. Perform Check 1. Check 1 Make sure the Libretto 100's AC adapter is firmly connected to the computer's DC IN socket and a power source.
Page 45 File No. 960-140 Procedure 4 Quick Charge Check The power supply may not charge the battery pack. Perform the following procedures: 1. Reinstall the battery pack. 2. Attach the AC adapter and turn on the power. If you cannot turn on the power, go to Procedure 5.
Page 46 File No. 960-140 Procedure 5 Replacement Check The AC adapter may be disconnected or damaged. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures. After checking the connection, perform the following checks: Check 1 Replace the AC adapter with a new one. If the problem still exists, go to Check 2. Check 2 Replace the system board with a new one.
Page 47: System Board Troubleshooting
File No. 960-140 System Board Troubleshooting This section describes how to determine if the system board is defective or not functioning properly. Start with Procedure 1 and continue with the other procedures as instructed. The procedures described in this section are: Procedure 1: Message Check Procedure 2: Printer Port LED Check on Boot Mode Procedure 3: Printer Port LED Check on Resume Mode...
Page 48 If an error message is shown on the display, perform Check 1. If there is no error message, go to Procedure 2. If Toshiba MS-DOS or Toshiba Windows 95 is properly loaded, go to Procedure 4. Check 1 If one of the following error messages displays on the screen, press the F1 key as the message instructs.
Page 49 File No. 960-140 Check 3 The IRT checks the system board. When the IRT detects an error, the system stops or an error message appears. If one of the following error messages (1) through (17), (24) or (25) displays, go to Procedure 5.
Page 50 File No. 960-140 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. Figure 2-2 shows the printer port LED. Figure 2-2 Printer port LED To use the printer port LED follow the steps below: 1.
Page 51 BIOS rewrite BIOS rewrite request check Canceling power down of L2-cache Enabling CMOS access Port 25h unlock Special register initialization Toshiba register initialization (1) Toshiba register initialization (2) Memory check DRAM size check Memory structure configuration SM-RAM stack area test...
Page 52 Message PIT initialization Start resume sequence Resume error process SM-RAM initialization ROM to RAM copy and enabling shadow RAM Toshiba register initialization (3) SMI initialization SM-RAM base rewrite KBC initialization (2) Set SMI handler Grant SMI Estimate operation clock speed...
Page 53 File No. 960-140 Table 2-3 Printer port LED boot mode status (3/5) LED Status Test item Message PnP initialization PnP initialization Desk station initialization Initialization of NS Super I/O in desk station Get PnP information PnP ISA card separation and get resource information Password initialization Password initialization...
Page 54 Store CMOS error information to SM-RAM Timer initialization Get version of embedded controller and PS microprocessor Set default value to embedded controller Toshiba special register initialization Grant SMI from docking port and Selectable Bay Display initialization VGA BIOS initialization Selectable Bay lock check...
Page 55: Fdd Troubleshooting
File No. 960-140 Table 2-3 Printer port LED boot mode status (5/5) LED Status Test item Message Boot password Boot password External I/O check External I/O check BIOS information update Set font address Set shadow RAM size Set expansion memory size to CMOS System resource update Set extended memory size to runtime BIOS for INT15h...
Page 56 File No. 960-140 Procedure 3 Printer Port LED Check on Resume 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 Hibernation mode. To use the printer port LED follow the steps below: 1.
Page 57: Procedure 5 Replacement Check
File No. 960-140 Procedure 4 Diagnostic Test Program Execution Check Execute the following tests from the Diagnostic Test Menu. Refer to Chapter 3, Tests and Diagnostic, for more information on how to perform these tests. 1. System test 2. Memory test 3.
Page 58: Fdd Troubleshooting
File No. 960-140 FDD Troubleshooting This section describes how to determine if the FDD is functioning properly. Perform the steps below starting with Procedure 1 and continuing with the other procedures as required. Procedure 1: FDD Head Cleaning Check Procedure 2: Diagnostic Test Program Execution Check Procedure 3: Connector Check and Replacement Check Procedure 1 FDD Head Cleaning Check...
Page 59 File No. 960-140 Procedure 2 Diagnostic Test Program Execution Check Insert the Diagnostics Disk in the FDD, turn on the computer and run the test. Refer to Chapter 3, Tests and Diagnostics, for more information about the diagnostics test procedures. Floppy disk drive test error codes and their status names are listed in Table 2-5.
Page 60: Connector Check And Replacement Check
File No. 960-140 Procedure 3 Connector Check and Replacement Check The FDD, cable and PC card is a single unit. Install the FDD's PC card in the computer, then begin with Check 1 below. Check 1 Make sure the PC card is properly connected to the system board. If the connection is loose, reinstall the PC card and repeat Procedure 2.
Page 61: Hdd Troubleshooting
File No. 960-140 HDD Troubleshooting This section describes how to determine if the HDD is functioning properly. Perform the steps below starting with Procedure 1 and continuing with the other procedures as required. Procedure 1: Message Check Procedure 2: Partition Check Procedure 3: Format Check Procedure 4: Diagnostic Test Program Execution Check Procedure 5: Connector Check and Replacement Check...
Page 62: Procedure 1
File No. 960-140 Procedure 1 Message Check When the computer’s HDD does not function properly, some of the following error messages may appear on the display. Start with Check 1 below and perform the other checks as instructed. Check 1 If any of the following messages appear, go to Procedure 5.
Page 63: Partition Check
File No. 960-140 Procedure 2 Partition Check Insert the Toshiba MS-DOS system disk and restart the computer. Perform the following checks: Type C: and press Enter . If you cannot change to drive C, go to Check 2. If you Check 1 can change to drive C, go to Check 3.
Page 64: Format Check
Format the HDD and transfer system files using FORMAT C:/S/U. If the following message appears on the display, the HDD is formatted. Format complete If an error message appears on the display, refer to the Toshiba MS-DOS Manual for more information and perform Check 2. Check 2 Using the Diagnostic Disk, format the HDD with a low level format option.
Page 65: Diagnostic Test Program Execution Check
File No. 960-140 Procedure 4 Diagnostic Test Program Execution Check The HDD test program is stored in the Diagnostics Disk. Perform all of the HDD tests in the Hard Disk Drive Test. Refer to Chapter 3, Tests and Diagnostics, for more information about the HDD test program.
Page 66: Connector Check And Replacement Check
File No. 960-140 Procedure 5 Connector Check and Replaceme nt Check The HDD or system board may be disconnected or damaged. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures and perform the following checks: Check 1 Make sure the HDD is firmly connected to system board.
Page 67: Keyboard Troubleshooting
File No. 960-140 Keyboard Troubleshooting To determine if the computer’s keyboard is functioning properly, perform the following procedures. Start with Procedure 1 and continue with the other procedures as instructed. Procedure 1: Diagnostic Test Program Execution Check Procedure 2: Connector and Replacement Check Procedure 1 Diagnostic Test Program Execution Check Execute the Keyboard Test in the Diagnostic Program.
Page 68: Connector And Replacement Check
File No. 960-140 Procedure 2 Connector and Replacement Check The keyboard is connected to the system board by flat cables. These cables or connectors may be disconnected or damaged. If there is a problem with the keyboard, disassemble the computer as described in Chapter 4, Replacement Procedures, and perform Check 1. Check 1 Make sure the following cables are not damaged and are connected to the system board.
Page 69: Pointing Device Troubleshooting
File No. 960-140 Pointing Device Troubleshooting To determine if the computer's pointing device is functioning properly, perform the following procedures. Procedure 1: Diagnostic Test Program Execution Check Procedure 2: Connector and Replacement Check Procedure 1 Diagnostic Test Program Execution Check Execute the pointing device Test in the Diagnostic Program of Keyboard Test Program.
Page 70: Display Troubleshooting
File No. 960-140 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 instructed. Procedure 1: Diagnostic Test Program Execution Check Procedure 2: Connector and Replacement Check Procedure 1 Diagnostic Test Program Executi on Check The Display Test program is stored on the computer’s Diagnostics disk.
Page 71: Connector And Replacement Check
File No. 960-140 Procedure 2 Connector and Replacement Check The FL, FL inverter board, LCD module, LCD flat cable and system board are connected to the display circuits. Any of these components may be damaged. Refer to Chapter 4, Replacement Procedures, for instructions on how to disassemble the computer and then perform the following checks: If the FL does not light, perform Check 4.
Page 72: Tests And Diagnostics
File No. 960-140 Chapter 3 Tests and Diagnostics...
Page 73 File No. 960-140 3-ii...
Page 74 File No. 960-140 Chapter 3 Contents The Diagnostic Test....................3-1 Executing the Diagnostic Test.................3-3 Subtest Names......................3-7 System Test......................3-9 Memory Test ......................3-10 Keyboard Test ......................3-12 Display Test......................3-16 Floppy Disk Test ....................3-20 Printer Test......................3-22 3.10 Async Test......................3-24 3.11 Hard Disk Test .....................3-26 3.12 Real Timer Test....................3-30 3.13 NDP Test ......................3-32...
Page 75 File No. 960-140 3.22 Floppy Disk Drive Utilities..................3-51 3.22.1 Function Description................3-51 3.22.2 Operations ..................3-52 3.23 System Configuration....................3-56 3.23.1 Function Description................3-56 3.23.2 Operations ..................3-57 3.24 SETUP.........................3-58 3.24.1 Function Description................3-58 3.24.2 Accessing the SETUP Program............3-59 Tables Table 3-1 Subtest names ....................3-7 Table 3-2 Error codes and error status names ..............3-36 Table 3-3 Hard disk controller status register contents............3-39 Table 3-4 Error register contents..................3-40 Table 3-5 Hard disk formatting sequence................3-42...
Page 76: The Diagnostic Test
File No. 960-140 The Diagnostic Test This chapter explains how to use the Diagnostic Test program to test the functions of the computer’s hardware modules. The Diagnostics Program is stored on the Diagnostic Disk. The Diagnostic Test consists of 12 programs that are grouped into the Service Program Module (DIAGNOSTIC TEST MENU).
Page 77 File No. 960-140 You will need the following equipment to perform some of the Diagnostic test programs. The Diagnostics Disk (all tests) A formatted working disk for the floppy disk drive test (all tests) A cleaning kit to clean the floppy disk drive heads (Head Cleaning) A PC card wraparound connector for the I/O card test (Expansion test) ( Rev.B or higher) A printer wraparound connector for the printer wraparound test (Printer test)
Page 78: Executing The Diagnostic Test
File No. 960-140 Executing the Diagnostic Test Toshiba MS-DOS is required to run the DIAGNOSTICS PROGRAM. To start the DIAGNOSTIC PROGRAM, follow these steps: 1. Connect a wraparound connector to the I/O adapter's printer port and RS-232C port. Connect the I/O adapter to the computer. Next, connect the FDD and insert the diskette containing the test program 2.
Page 79 3. To select the DIAGNOSTIC TEST option from the DIAGNOSTICS MENU, set the highlight bar to 1 and press Enter . The following DIAGNOSTIC TEST MENU will appear: TOSHIBA personal computer xxx DIAGNOSTICS version X.XX (c) copyright TOSHIBA Corp. 19XX DIAGNOSTIC TEST MENU : 1 - SYSTEM TEST 2 - MEMORY TEST...
Page 80 File No. 960-140 4. Select the option you want to execute and press Enter . The following message appears: SYSTEM TEST XXXXXXX xxx DIAGNOSTIC TEST VX.XX [Ctrl]+[Break] ; test end [Ctrl]+[C] ; key stop SUB- TEST : XX PASS COUNT: XXXXX ERROR COUN T: XXXXX WRITE DATA: READ DATA : XX...
Page 81 File No. 960-140 Selecting YES for stops the test program when an error is found and ERROR STOP displays the operation guide on the right side of the display screen as shown below: ERROR STATUS NAME [ [ HALT OPERATION ]] 1: Test end 2: Continue 3: Retry...
Page 82: Figure 1-6 Keyboard
File No. 960-140 Subtest Names Table 3-1 lists the subtest names for each test program in the DIAGNOSTIC TEST MENU. Table 3-1 Subtest names (1/2) Test Name Subtest No. Subtest Name SYSTEM ROM checksum Thermistor check Quick charge DMI read (Not used) DMI write (Not used) MEMORY RAM constant data...
Page 83 File No. 960-140 Table 3-1 Subtest names (2/2) Test Name Subtest No. Subtest Name ASYNC Wrap around (board) Point to point (send) Point to point (receive) Interrupt test FIR/SIR point to point (send) FIR/SIR point to point (receive) Sequential read Address uniqueness Random address/data Cross talk &...
Page 84: System Test
File No. 960-140 System Test To execute the System Test select 1 from the DIAGNOSTIC TEST MENU, press Enter and follow the directions on the screen. Move the highlight bar to the subtest you want to execute and press Enter. Subtest 01 ROM Checksum This subtest executes a checksum test of the BIOS ROM on the system board.
Page 85: Memory Test
File No. 960-140 Memory Test To execute the Memory Test, select 2 from the DIAGNOSTIC TEST MENU, press Enter and follow the directions on the screen. Move the highlight bar to the subtest you want to execute and press Enter. Subtest 01 RAM constant data (real mode) This subtest writes a 256-byte unit of constant data to conventional memory (0...
Page 86 File No. 960-140 Subtest 05 Memory module NOTE: To execute this subtest, an optional memory card must be installed in the computer. This subtest functions the same as subtest 04, except it is used for testing an optional memory card. Memory module capacity is 32MB. After selecting subtest 05, the following message will appear: Extended memory size (1:32 MB)? Select the number that corresponds to the memory card installed in the...
Page 87: Keyboard Test
File No. 960-140 Keyboard Test To execute the Keyboard Test, select 3 from the DIAGNOSTIC TEST MENU, press Enter and follow the directions on the screen. The Keyboard test contains four subtests that test the computer’s keyboard, PS/2 mouse, and Pointing Stick actions. Move the highlight bar to the subtest you want to execute and press Enter.
Page 88 File No. 960-140 Subtest 02 Pressed key code display When a key is pressed, the scan code, character code, and key top name displays on the screen in the format shown below. The Ins , Caps Lock , Num Lock , Scroll Lock , Alt , Ctrl , Left Shift , and Right Shift keys display in reverse screen mode when pressed.
Page 89 File No. 960-140 Subtest 04 Pointing stick This subtest checks the functions of the pointing stick as shown below. A) IPS stick pressure sensing direction and parameter. B) IPS switch function check. This test reports the pointing stick motion response from the IPS and IPS switch.
Page 90 File No. 960-140 Subtest 05 USB Wrap around test This subtest checks USB. The USB TEST Module (ZD0003P01) and USB Cable (ZD0003P02) must be connected to the computer. If the test is completed successfully, OK is displayed. If nothing is displayed, there may be a problem with the USB port.
Page 91: Display Test
File No. 960-140 Display Test To execute the Display Test, select 4 from the DIAGNOSTIC TEST MENU, press Enter and follow the directions on the screen. The Display test contains eight subtests that test the display in various modes. Move the highlight bar to the subtest you want to execute and press Enter.
Page 92 File No. 960-140 Subtest 03 Gradation & mode test for VGA This subtest displays gradations for each mode. Execute the test, then press Enter to change the mode. Resolution Mode 800 x 480 3, 12, 13 NOTE: Mode 52 test can test only an external monitor, it cannot be used for the internal LCD.
Page 93 File No. 960-140 Pressing Enter again changes the size of the displayed image. To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break. 3-18...
Page 94 File No. 960-140 Subtest 04 “H” pattern display This subtest displays a full screen of “H” patterns. HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break.
Page 95: Floppy Disk Test
File No. 960-140 Floppy Disk Test NOTE: Before running the floppy disk test, prepare a formatted work disk. Remove the Diagnostics Disk and insert the work disk into the FDD. The contents of the floppy disk will be erased. To execute the Floppy Disk Test, select 5 from the DIAGNOSTIC TEST MENU, press Enter and follow the directions displayed on the screen.
Page 96 File No. 960-140 Subtest 01 Sequential read This subtest performs a Cyclic Redundancy Check (CRC) that continuously reads all the tracks on a floppy disk. The following tracks are read according to the media type in the floppy disk drive: Double-sided, double-density (2D): Tracks 0 to 39.
Page 97: Printer Test
File No. 960-140 Printer Test To execute the Printer Test, select 6 from the DIAGNOSTIC TEST MENU, press Enter and follow the directions on the screen. The Printer Test contains three subtests that test the output of the printer connected to the computer. The following messages will appear after selecting the Printer Test.
Page 98 File No. 960-140 Subtest 02 Function This subtest is for IBM compatible printers and tests the following functions: Normal print Double-width print Compressed print Emphasized print Double-strike print All characters print This subtest prints the various print types shown below: Subtest 03 Wraparound NOTE: To execute this subtest, a parallel port wraparound connector...
Page 99: Async Test
File No. 960-140 3.10 Async Test To execute the Async Test, select 7 from the DIAGNOSTIC TEST MENU, press Enter and follow the directions on the screen. The async test contains seven subtests that test the asynchronous communication functions. Move the highlight bar to the subtest you want to execute and press Enter.
Page 100 File No. 960-140 Subtest 03 Point to point (receive) This subtest is used with subtest 02 described above. This subtest receives the data from the send side, then sends the received data. Subtest 04 Interrupt test This subtest checks the Interrupt Request Level of IRQ 4, 3 and 5 from the send side.
Page 101: Hard Disk Test
File No. 960-140 3.11 Hard Disk Test To execute the Hard Disk Test, select 8 from the DIAGNOSTIC TEST MENU, press Enter, and follow the directions on the screen. The hard disk test contains ten subtests that test the hard disk drive functions. NOTE: The contents of the hard disk will be erased when subtest 02, 03, 04, 05, 06, 08, 09, or 10 is executed.
Page 102 File No. 960-140 4. This message is used to select whether or not the HDD status is displayed on the screen. The HDD status is described in section 3.19. Select yes or no : Detail status display 5. This message is used to select whether or not the HDD status is displayed on the screen.
Page 103 File No. 960-140 Subtest 04 Cross talk & peak shift This subtest writes eight types of worst pattern data (listed below) to a cylinder, then reads the data while moving from cylinder to cylinder. Worst pattern data Cylinder ‘B5ADAD’ 0 cylinder ‘4A5252’...
Page 104: Real Timer Test
File No. 960-140 3.12 Real Timer Test To execute the Real Timer Test, select 9 from the DIAGNOSTIC TEST MENU, press Enter and follow the directions on the screen. The real timer test contains three subtests that test the computer’s real timer functions. Move the highlight bar to the subtest you want to execute and press Enter.
Page 105 File No. 960-140 Subtest 03 Real time carry CAUTION: When this subtest is executed, the current date and time are erased. This subtest checks the real time clock increments, making sure the date and time are displayed in the following format: Current date 12-31-19 95 Current time...
Page 106: Ndp Test
File No. 960-140 3.13 NDP Test To execute the NDP test, select 10 from the DIAGNOSTICS TEST MENU, press Enter and follow the directions on the screen. The NDP test contains one subtest that tests the computer’s NDP functions. Subtest 01 This test checks the following functions of the coprocessor: Control word Status word...
Page 107: Expansion Test
File No. 960-140 3.14 Expansion Test To execute the expansion test, select 11 from the DIAGNOSTICS TEST MENU, press Enter and follow the directions on the screen. NOTE: To execute this subtest, the PC card wraparound connector is required. Subtest 01 PCMCIA wrap around This test checks the following signal line of the PC card slot: Address line...
Page 108 File No. 960-140 NOTE: Subtests 02 and 04 are for Enhanced Port Replicator . For procedures on those subtests, refer to Enhanced Port Replicator manual. Subtest 03 RGB monitor ID test Connect a wrap around Board to the external monitor port to test the RGB monitor ID.
Page 109: Sound Test
File No. 960-140 3.15 Sound Test To execute the sound test, select 12 from the DIAGNOSTICS TEST MENU, press Enter and follow the directions on the screen. The sound test contains four subtests that test the computer’s sound functions. NOTE: To execute this subtest, the internal microphone and internal headphone (or internal speaker) are required.
Page 110: Error Code And Error Status Names
File No. 960-140 3.16 Error Code and Error Status Names Table 3-2 lists the error codes and error status names for the Diagnostic Test. Table 3-2 Error codes and error status names (1/3) Device name Error code Error status name (Common) Data Compare Error System...
Page 111 File No. 960-140 Table 3-2 Error codes and error status names (2/3) Device name Error code Error status name ASYNC [DSR On] Time Out [CTS On] Time Out [RX READY] Time Out [TX FULL] Time Out Parity Error Framing Error Overrun Error Underrun error Timer time out error...
Page 112 File No. 960-140 Table 3-2 Error codes and error status names (3/3) Device name Error code Error status name PCMCIA Address Line Error REG# Line Error CE#1 Line Error CE#2 Line Error DATA Line Error WAIT Line Error BSY# Line Error BVD1 Line Error ZV Port Error No PCMCIA...
Page 113: Hard Disk Test Detail Status
File No. 960-140 3.17 Hard Disk Test Detail Status When an error occurs in the hard disk test, the following message displays: HDC status = XXXXXXXX Detailed information about the hard disk test error displays on the screen by an eight-digit number.
Page 114 File No. 960-140 Table 3-4 Error register contents Name Description BBK1 “0” Not used (Bad block mark) “1” A bad block mark is detected. “0” There is no uncorrectable data error. (Uncorrectable) “1” Uncorrectable data error has been detected. —— Not used IDNF “0”...
Page 115: Hard Disk Format
File No. 960-140 3.18 Hard Disk Format This command executes hard disk formatting. There are two types of hard-disk formatting: Low-level (physical) formatting MS-DOS (logical) formatting The hard disk format function performs a low-level format of the hard disk and executes the following hard disk formats and check: 1.
Page 116 File No. 960-140 3.18.1 Function Description 1. All Track FORMAT This option performs a low-level format of all the tracks on the hard disk as listed in Table 3-5 below: NOTE: Before executing the all track format option, check for bad tracks using the Bad Track CHECK option or display a list of bad tracks on the HDD.
Page 117 File No. 960-140 3.18.2 Operations NOTE: After the HDD has been formatted, execute the Toshiba MS-DOS FDISK command to partition the HDD. Execute the Toshiba MS-DOS FORMAT command. Refer to the Toshiba MS-DOS manual for more information about using these commands.
Page 118 File No. 960-140 (c) Bad track register The Bad Track register prompt will appear as shown below. Enter the cylinder and head numbers of bad tracks and press Enter. Note that if there are no bad tracks, pressing Enter alone is the same as executing All Track Format described in item (d) below.
Page 119 File No. 960-140 3. Bad Track FORMAT To format a track as a bad track, enter the number for the drive, interleave, cylinder and head as indicated in the screen prompt shown below. Drive number select (1 :#1, 2:#2) ? Interleave number (1 / 1 - 8 Press [Cylinder number ( dddd) ] ?
Page 120: Function Description
File No. 960-140 3.19 Head Cleaning 3.19.1 Function Description This function cleans the heads in the FDD by executing a series of head load/seek and read operations. A cleaning kit is necessary to perform this program. 3.19.2 Operations 1. Selecting test 4 from the DIAGNOSTIC MENU and pressing Enter displays the following messages: DIAGNOSTICS - FLOPPY DISK HEAD CLEANING : VX.XX...
Page 121: Function Description
File No. 960-140 3.20 Log Utilities 3.20.1 Function Description This function logs error information generated while a test is in progress and stores the results in RAM. This function can store data on a floppy disk or output the data to a printer. If the power switch is turned off, the error information will be lost.
Page 122 File No. 960-140 2. The error information displayed on the screen can be manipulated by the following number keys: The 1 key scrolls the display to the next page. The 2 key scrolls the display to the previous page. The 3 key returns to the Diagnostic Menu. The 4 key erases all error log information in RAM.
Page 123: Running Test
File No. 960-140 3.21 Running Test 3.21.1 Function Description This function automatically executes the following tests in sequence: 1. System test (subtest 01) 2. Memory test (subtests 01, 02, 04, and 06) 3. Display test (subtest 01 to 05) 4. FDD test (subtest 02) 5.
Page 124 File No. 960-140 4. Select Yes or No and press Enter . The following message will appear : Mount the work disk(s) on the drive(s), then press [Enter] key. [Warning : The contents of the disk(s), will be destroyed.] 5. This program is executed continuously. To terminate the program, press Ctrl + Break.
Page 125: Floppy Disk Drive Utilities
1. FORMAT NOTE: This program is only for testing a floppy disk drive. The option is different from the Toshiba MS-DOS FORMAT command. This program can format a 5.25-inch or 3.5-inch floppy disk in the following formats: (a) 2DD: Double-sided, double-density, double-track, 96/135 TPI, MFM mode, 512 bytes, 9 sectors/track.
Page 126: Operations
File No. 960-140 3.22.2 Operations 1. Selecting 7 from the DIAGNOSTIC MENU and pressing Enter displays the following message: [ FDD UTILITIES ] 1 - FORMAT 2 - COPY 3 – DUMP 4 – HDD ID 9 - EXIT TO DIAGNOSTICS MENU 2.
Page 127 File No. 960-140 3. COPY program (a) When COPY is selected, the following message appears: FLOPPY DISK FORMAT & COPY : VX.XX Type select (0:2DD ,3:2HD) ? (b) Selecting a media/drive type number will display a message similar to the one below: Insert source disk into drive A: Press any key when ready.
Page 128 File No. 960-140 4. DUMP program (a) When DUMP is selected, the following message appears: DIAGNOSTICS-HARD DISK & FLOPPY DISK DUMP : VX.XX Drive type select (1:FDD, 2:HDD (b) Select a drive type. If 1 is selected in step (a), the following message displays. Select drive number (1:A, 2:B ) ? Select an FDD drive number.
Page 129 File No. 960-140 (e) Insert a source disk and press any key. (f) The following message will appear: —— Max. address —— [Track ] = XXXX [ Head ] = XX [Sector] = XX Track number ?? Set the track number you want to dump. The system will access the disk and dump a list.
Page 130: System Configuration
File No. 960-140 3.23 System Configuration 3.23.1 Function Description The System Configuration program contains the following configuration information for the computer: 1. Processor Type 2. VGA Controller 3. MS-DOS Version 4. BIOS ROM Version (1st ID, 2nd ID) 5. Boot ROM Version 6.
Page 131: Operations
File No. 960-140 3.23.2 Operations Selecting 8 from the DIAGNOSTIC MENU and pressing Enter displays the following system configuration: System Configration Display : Ver X.XX [Machine Name ???] ** - Processor Type XXXX ** - VGA Controller XXXX MS-DOS Version VX.XX BIOS ROM Version V .XX 1st ID = XXH, 2nd ID = XXH...
Page 132: Setup
File No. 960-140 3.24 SETUP 3.24.1 Function Description This program displays the current system setup information as listed below: 1. Memory (a) Total 2. Password 3. Peripheral (a) Pointing Devices (b) Parallel Port Mode (c) Hard Disk Mode 4. Boot Priority 5.
Page 133: Accessing The Setup Program
File No. 960-140 3.24.2 Accessing the SETUP Program Selecting 0 from the DIAGNOSTICS MENU and pressing Enter displays the TSETUP screen. The TSETUP screen is divided into two pages: SYSTEM SETUP (1/2) and SYSTEM SETUP (2/2) . NOTE: The Panel Power On/Off item and the System Auto Off item appears when the computer is in Resume mode and Hibernation mode.
Page 134 File No. 960-140 Moving Within the SETUP Menu and Changing Values 1. Press to move between the two columns. Press PgDn and PgUp to move between the two pages. Press and to move between items in a column. 2. Press either the space bar or BkSp to change the value. Accepting Changes and Exiting the SETUP Window 1.
Page 135 File No. 960-140 SETUP Options The SETUP screen is divided into functionally related groups. This section describes each group and its options. 1. Memory This option displays the computer’s memory. (a) Total This field displays the total amount of memory installed and is automatically calculated by the computer.
Page 136 File No. 960-140 (b) Parallel Port Mode This option in this tab are ECP and Standard Bi-directional. Sets the port mode to Extended Capabilities Port (ECP). For most printers, the port should be set to ECP. (Default) Std. Bi-Direct. This setting should be used with some other parallel devices.
Page 137 File No. 960-140 5. Display (a) Power On Display This option is used to select the display when booting up. Auto-Selected Selects an external monitor if one is connected, otherwise it selects the internal LCD. (Default) Simultaneous Selects both the internal LCD and the external monitor for simultaneous display.
Page 138 File No. 960-140 6. Others Whether you need to configure the computer with these options depends primarily on the kind of software or peripherals you use. (a) Power-up Modes Use this option to choose hibernation, resume and boot mode. Boot Turns on boot mode.
Page 139 File No. 960-140 (c) Auto Power On Use this option to set a time and date for automatic power on the Alarm Date Option displays when Alarm Time is enabled. Alarm Time is set in the sequence of hours and minutes. Seconds cannot be changed.
Page 140 File No. 960-140 (d) Alarm Volume This option disables or sets the volume level of the alarm. Setting this option to off disables the computer’s sound function for alarms. Disables the alarm. Sets the alarm volume to low. Medium Sets the alarm volume to medium. High Sets the alarm volume to high.
Page 141 File No. 960-140 (f) System Auto Off Use this option to disable or set the duration of the system automatic off function in Resume or Hibernation mode. In Boot mode and Hibernation mode, it is disabled and does not display. Disabled Disables system automatic power off.
Page 142 File No. 960-140 8. I/O ports This option controls settings for the serial and parallel ports and the sound system. NOTE: Do not assign the same interrupt request level and I/O address to the serial port and PC card. (a) Serial Use this option to set the COM level for the serial port.
Page 143 File No. 960-140 (b) Parallel This option sets the interrupt request level (IRQ) and I/O port base address for the parallel port. When the Printer Port Type is set to Standard Bi- directional, the options are: LPT setting Interrupt level I/O address LPT 1 378H...
Page 144 File No. 960-140 (c) Sound Use this option to enable or disable the sound system. Enabled Enables the sound system. (Default) Disabled Disables the sound system. When Enabled is selected, a subwindow similar to the one below appears to let you set the WSS I/O address, SBPro I/O address, Synthesizer I/O address, WSS &...
Page 145 File No. 960-140 WSS & SBPro & MPU401 IRQ level This option sets the IRQ level for the Windows Sound System, Sound Blaster Pro and MPU401. The available settings are: IRQ5 (default), IRQ7, IRQ9, IRQ11, IRQ15 WSS (Play) DMA This option sets the DMA channel for the Windows Sound System (playback). The available settings are: Channel 0, Channel 1 (default), Channel 3...
Page 146 File No. 960-140 10. PCI Bus This option displays the interrupt request level for the CardBus in the computer. It is for information only and cannot be changed. 11. PC Card This option lets you set the PC Card Controller mode. Auto-Selected Use this setting for all PC Card if you are using Windows 95.
Page 147 File No. 960-140 3-72...
Page 148: Replacement Procedures
File No. 960-140 Chapter 4 Replacement Procedures...
Page 149 File No. 960-140 4-ii...
Page 150 File No. 960-140 Chapter 4 Contents Overview........................4-1 HDD........................4-8 Optional Memory Module..................4-10 Keyboard......................4-12 Display Assembly....................4-13 RTC Battery......................4-17 System Board, Heat Sink and PC Card Slot............4-18 Display Mask......................4-20 FL Inverter Board....................4-22 4.10 LCD Module ......................4-24 4.11 Speaker, Power Switch Board and AccuPoint Board..........4-27 4.12 LCD Flexible Cable and Microphone..............4-30 4.13...
Page 151 File No. 960-140 Figure 4-15 Removing the PC card slot................4-19 Figure 4-16 Removing the mask seals................4-20 Figure 4-17 Removing the display mask ...............4-21 Figure 4-18 Removing the FL inverter board..............4-22 Figure 4-19 Disconnecting the display cable ..............4-23 Figure 4-20 LCD module removal................4-25 Figure 4-21 Removing the speaker ................4-27 Figure 4-22...
Page 152: Overview
File No. 960-140 Overview The disassembly and replacement procedures for units that can be replaced in the field (FRUs) are described in this section. It may not be necessary to remove all the FRUs in order to replace one FRU. The chart below shows a guideline on which FRUs are to be removed before removing a certain FRU.
Page 153 File No. 960-140 Before Beginning Work Observe the following before beginning work. All procedures must begin with the removal of the AC adapter, battery pack and any PC cards. 1. Do not disassemble the computer unless a malfunction occurs. 2. Use the specified tools. 3.
Page 154 File No. 960-140 Disassembly Procedures There are two basic types of cable connectors. Pressure plate connector Normal pin connector To disconnect the cable from a pressure plate connector, lift the tab on either side of the plastic pressure plate of the connector, and gently pull the cable out from the connector. To connect the cable to a pressure plate connector, lift the pressure plate high enough and slide the cable into the connector.
Page 155 File No. 960-140 Tools and Devices It is important for the safety of the workers and others in the neighborhood to use electrostatic discharging (ESD) devices. Proper use of these devices will raise the success rate of repairs and reduce the expenses arising from damage and breakdown of the parts. The following are necessary for disassembly and reassembly.
Page 156 File No. 960-140 Removing the Battery Pack To remove the battery pack follow the steps below. 1. Switch the computer off. Disconnect the AC adapter and any other external devices from the computer. 2. Turn the computer upside down. 3. Slide the battery release latch to the left to unlock the battery. 4.
Page 157 Installing the Battery Pack To install the battery pack, observe the following instructions. WARNING : Use only batteries recommended by Toshiba. Installation of the wrong battery could cause the battery to explode and cause injury or other damage. 1. Switch the computer off. Disconnect the AC adapter and all external devices from the computer.
Page 158 File No. 960-140 Installing the Optional PC Card To install the optional PC card follow the steps below. NOTE: Before installing the PC card, make sure that the computer is in boot mode. 1. Switch the computer off. 3. Insert the PC card. Carefully push it in place. 4.
Page 159: Hdd
File No. 960-140 CAUTION: Be very careful not to press on the top or bottom of the HDD. Pressure can destroy data or damage the drive. Removing the HDD To remove the HDD follow the steps below. (See figures 4-1 to 4-3.) 1.
Page 160 File No. 960-140 Pull the HDD bracket straight with your fingernail and pull the HDD out. NOTE: When pulling the HDD out, be sure to hold both corners of the bracket as shown below so as not to bend the bracket. Figure 4-2 Removing the HDD Remove two thin-flat-head M3 screws from the HDD bracket, and separate the bracket and the HDD.
Page 161 File No. 960-140 3. Seat the HDD cover and fasten it with two M2x14 silver screws. 4-10...
Page 162: Optional Memory Module
File No. 960-140 Optional Memory Module Removing Optional Memory Module To remove the optional memory module follow the steps below. (See figures 4-4 to 4-6.) 1. Lift up the right end of the keyboard brace to remove it. Figure 4-4 Removing the keyboard brace Lift up the back edge of the keyboard.
Page 163 File No. 960-140 Lift out the keyboard and lay it against the display, being careful not to apply tension to the cables. Remove the super-thin-head M2.5 screw first, then remove the memory module. Figure 4-6 Removing the optional memory module Installing Optional Memory Module To install the optional memory module follow the steps below.
Page 164: Keyboard
File No. 960-140 Keyboard Removing the Keyboard To remove the keyboard follow the steps below. (See figure 4-7.) 1. Remove two M2x3 silver screws securing the keyboard straps and slide each strap out from under its brace. 2. Disconnect the flexible cable from PJ302 and remove the keyboard. Figure 4-7 Removing the keyboard Installing the Keyboard To install the keyboard follow the steps below.
Page 165: Display Assembly
File No. 960-140 Display Assembly Removing the Display Assembly To remove the display assembly follow the steps below. (See figures 4-8 to 4 -11.) 1. Lift out the metal cover. CAUTION: The metal cover is thin, so be careful not to cut yourself on the edge. Figure 4-8 Removing the metal cover 2.
Page 166 File No. 960-140 Figure 4-9 Removing the display flexible cable 4. Close the display, turn the computer upside down, and remove five M2x14 silver screws. Figure 4-10 Removing five screws 5. Turn the computer right side up and open the display. 6.
Page 167 File No. 960-140 CAUTION: Make sure the flexible cable has been removed from PJ470 on the system board before removing the display assembly. An attempt to forcibly remove the display assembly when the flexible cable is still connected to PJ470 could damage the cable. Figure 4-11 Removing the display assembly 4-15...
Page 168 File No. 960-140 Installing the Display Assembly To install the display assembly follow the steps below. (See figures 4-8 to 4 -11.) 1. Seat the display assembly and connect the microphone cable to PJ470 on the system board. 2. Connect the display flexible cable to PJ250 on the system board (figure 4-9). 3.
Page 169: Rtc Battery
File No. 960-140 RTC Battery Removing the RTC Battery To remove the RTC battery follow the steps below. (See figure 4-12.) 1. Disconnect the RTC battery cable from PJ300 on the system board. 2. Lift out the RTC battery. Figure 4-12 RTC battery removal Installing the RTC Battery To install the RTC battery follow the steps below.
Page 170: System Board, Heat Sink And Pc Card Slot
File No. 960-140 System Board, Heat Sink and PC Card Slot Removing the System Board, Heat Sink and PC Card Slot To remove the system board, heat sink and PC card slot observe the following procedures. (See figures 4-13 to 4-15.) 1.
Page 171 File No. 960-140 Figure 4-14 Removing the heat sink 5. Turn the system board over and lift off the PC card slot. Figure 4-15 Removing the PC card slot Installing System Board, Heat Sink and PC Card Slot To install the system board, heat sink and PC card slot follow the steps below. (See figures 4- 13 to 4-15.) 1.
Page 172: Display Mask
File No. 960-140 Display Mask Removing the Display Mask To remove the display mask follow the steps below. (See figures 4-16 to 4 -17.) 1. Remove the two mask seals on the right and left in the lower part of the display mask. 2.
Page 173 File No. 960-140 5. Continue along the sides (three latches on each side) and the bottom (three latches). Figure 4-17 Removing the display mask Installing the Display Mask To install the display mask follow the steps below. (See figures 4-16 and 4 -17.) 1.
Page 174: Fl Inverter Board
File No. 960-140 FL Inverter Board Removing the FL Inverter Board To remove the FL inverter board follow the steps below. (See figures 4-18 to 4-19.) 1. Remove one M2x5 silver screw securing the FL inverter board. 2. Slide the FL inverter board slightly to the right to clear a small latch and lift out the board, being careful not to apply tension to the cables.
Page 175 File No. 960-140 Figure 4-19 Disconnecting the display cable Installing the FL Inverter Board To install the FL inverter board follow the steps below. (See figure 4-18 to 4-19.) 1. Connect the FL cable to CN1 on the FL inverter board and the display flexible cable to CN2.
Page 176: Lcd Module
File No. 960-140 4.10 LCD Module Caution: Hold the LCD module in one of two ways: 1. Grasp the LCD module lightly as shown in the top left illustration. Do not grip it tightly. 2. Hold it gently between your thumb and fingers. Hold only on the side that does not have connectors along the edge.
Page 177 File No. 960-140 When handling the LCD module, do not touch or apply pressure to the surface of the LCD panel. Do not touch or apply pressure to the connectors. LCD panel Connectors 4-25...
Page 178 File No. 960-140 Removing the LCD Module To remove the LCD module follow the steps below. (See figure 4-20.) 1. Remove four M2x5 silver screws securing the LCD module to the top cover. 2. Carefully rotate the LCD module out of the top cover from left to right being careful not to apply tension to the cables connected to the right side.
Page 179 File No. 960-140 Installing the LCD Module To install the LCD module follow the steps below. (See figure 4-20.) Connect the display flexible cable to CN1 on the LCD module. Carefully rotate the LCD module into the top cover from right to left. Secure the LCD module to the top cover with four M2x5 silver screws.
Page 180: Speaker, Power Switch Board And Accupoint Board
File No. 960-140 4.11 Speaker, Power Switch Board and AccuPoint Board Removing the Speaker, Power Switch Board and AccuPoint Board To remove the speaker, power switch board and AccuPoint board follow the steps below. (See figures 4-21 and 4-23.) 1. Disconnect the speaker cable from the speaker connector and lift out the speaker with its rubber case.
Page 181 File No. 960-140 4. Turn over the power switch board, being careful not to apply tension to the remaining cable connection and disconnect the LCD flexible cable from PJ3 on the power switch board. Figure 4-22 Removing the power switch board 5.
Page 182 File No. 960-140 Installing the Speaker, Power Switch Board and AccuPoint Board To install the speaker, power switch board and AccuPoint board follow the steps below. (See figures 4-21 to 4-23.) 1. Seat the AccuPoint board and secure it with one M2x3 silver screw. 2.
Page 183: Lcd Flexible Cable And Microphone
File No. 960-140 4.12 LCD Flexible Cable and Microphone Removing LCD Flexible Cable and Microphone To remove the LCD flexible cable and microphone follow the steps below. (See figures 4 -24 to 4-29.) 1. Remove one M2x5 sliver screw securing the LCD flexible cable and two M2.5x5 screws securing the display hinges.
Page 184 File No. 960-140 4. Remove insulator covering the microphone cable. Figure 4 -25 Removing tape 5. Remove one M2x4 screw securing the left top cover brace to the top cover and remove a plastic support for the left top cover brace. Figure 4-26 Removing one screw and plastic support 4-32...
Page 185 File No. 960-140 6. Remove the left top cover brace and microphone. Figure 4-27 Removing the left top cover brace and microphone 7. Separate the microphone from its rubber case. 8. Remove one M2x5 silver screw and a brace for the LCD flexible cable. Figure 4-28 Removing the LCD flexible cable 4-33...
Page 186 File No. 960-140 9. Remove the LCD cable by pulling it through the opening that was covered by the brace. Figure 4-29 Removing the LCD cable 4-34...
Page 187 File No. 960-140 Installing LCD Flexible Cable and Microphone To install the LCD flexible cable and microphone follow the steps below. (See figures 4 -24 to 4-29.) 1. Thread the LCD cable through the slot in the top cover. 2. Seat the LCD flexible brace and secure it with one M2x5 screw. 3.
Page 188: I/O Adapter Board
File No. 960-140 4.13 I/O Adapter Board Removing the I/O Adapter Board To remove the I/O adapter board follow the steps below. (See figures 4-30 to 4-32.) 1. Remove the I/O adapter from the computer. Disconnect all the external cables from the I/O adapter.
Page 189 File No. 960-140 Figure 4-32 Removing the I/O adapter board 4-37...
Page 190 File No. 960-140 Installing the I/O Adapter Board To install the I/O adapter board follow the steps below. (See figures 4-30 to 4 -32.) 1. Seat the I/O adapter board and secure it with four M2x4 screws. 2. Seat the top cover on the bottom cover. 3.
Page 191 File No. 960-140 Appendices...
Page 192 File No. 960-140 App-ii...
Page 193 File No. 960-140 Appendix Contents Appendix A Handling the LCD Module..............A-1 Appendix B Board Layout ................... B-1 System Board Front View ................. B-1 System Board Back View ................B-2 Appendix C Pin Assignments ..................C-1 Expansion Memory Connector (140-pin)........C-1 PJ200 Docking Interface Connector (140-pin)...........
Page 194 File No. 960-140 Scandinavian (SC) Keyboard..............E-4 Swiss-German (SL) Keyboard..............E-4 Appendix F Wiring Diagrams..................F-1 Parallel Port Wraparound Connector............F-1 Serial Port Wraparound Connector..............F-1 Serial Port Direct Cable (9-Pin to 9-Pin)............F-2 Serial Port Direct Cable (9-Pin to 25-Pin)............F-2 Appendix G BIOS Rewrite Procedures................G-1 Appendix H Reliability ....................H-1 App-iv...
Page 195 File No. 960-140 Figures Figure B-1 Board layout (front) ................... B-1 Figure B-2 Board layout (back)..................B-2 Figure E-1 US keyboard ....................E-1 Figure E-2 UK keyboard....................E-1 Figure E-3 GR keyboard....................E-2 Figure E-4 FR keyboard....................E-2 Figure E-5 SP keyboard....................
Page 196 File No. 960-140 Table C-11 AC adapter connector pin assignments 23-pin)......... C-12 Table C-12 Main Battery connector pin assignments (10-pin) ........C-12 Table D-1 Scan codes (set 1 and set 2)................D-1 Table D-2 Scan codes with left Shift key..............D-5 Table D-3 Scan codes in Numlock mode..............D-6 Table D-4 Scan codes with Fn key................D-6...
Page 197: Appendix A Handling The Lcd Module
File No. 960-140 Appendix A Appendix A Handling the LCD Module Precautions for handling the LCD module The LCD module can be easily damaged during assembly or disassembly. Therefore, please observe the following precautions when handling it: 1. When installing the LCD module in its cover, be sure to seat it so that it is properly aligned and maximum visibility of the display is maintained.
Page 198 File No. 960-140 3. If the panel’s surface gets dirty, wipe it with cotton or a soft cloth. If it is still dirty, try breathing on the surface to create a light condensate and wipe it again. If the surface is very dirty, use a CRT cleaning agent. Apply the agent to a cloth and then wipe the panel’s surface.
Page 199 File No. 960-140 5. Glass is used in the panel, so be careful not to drop it or let it strike a hard object, which could cause breakage or cracks. 6. CMOS-LSI circuits are used in the module, so guard against damage from electrostatic discharge.
Page 200 File No. 960-140 7. Do not expose the module to direct sunlight or strong ultraviolet rays for long periods. 8. Do not store the module at temperatures below specifications. Cold can cause the liquid crystals to freeze, lose their elasticity or otherwise suffer damage. 9.
Page 201 File No. 960-140 10. If you transport the module, do not use packing material that contains epoxy resin (amine) or silicon glue (alcohol or oxime). These materials can release gas that can damage the panel’s polarization.
Page 202 File No. 960-140...
Page 203: Appendix B Board Layout
File No. 960-140 Appendix B Appendix B Board Layout B.1 System Board Front View Figure B-1 Board layout (front)
Page 204: System Board Back View
File No. 960-140 B.2 System Board Back View Figure B-2 Board layout (back)
Page 205 File No. 960-140 Table B-1 System board ICs and connectors (front) Mark Number Name IC3 to 6 System RAM IC300 BIOS ROM PJ200 Docking interface connector PJ301 HDD connector PJ303 PC card connector PJ500 DC-IN connector PJ510 Main battery connector Table B-2 System board ICs and connectors (back) Mark Number...
Page 206 File No. 960-140...
Page 207: Appendix C Pin Assignments
File No. 960-140 Appendix C Appendix C Pin Assignments System Board C.1 PJ1 Expansion Memory Connector (140-pin) Table C-1 Expansion Memory connector pin assignments (140-pin)(1/3) Pin No. Signal name Pin No. Signal Name MD00;100 MD32;100 MD01;100 MD33;100 MD02;100 MD34;100 MD03;100 MD35;100 MD04;100 MD36;100...
Page 208 File No. 960-140 Table C-1 Expansion Memory connector pin assignments (140-pin)(2/3) Pin No. Signal name Pin No. Signal Name MD15;100 MD47;100 WED;001 WEC;001 RAS2;001 RAS3;001 MD16;100 MD48;100 MD17;100 MD49;100 MD18;100 MD50;100 MD19;100 MD51;100 MD20;100 MD52;100 MD21;100 MD53;100 MD22;100 MD54;100 MD23;100 MD55;100 MA06;111 MA07;111...
Page 209: Pj200 Docking Interface Connector (140-Pin
File No.960-140 Table C-1 Expansion Memory connector pin assignments (140-pin)(3/3) Pin No. Signal name Pin No. Signal Name CAS3;011 CAS7;011 MD20;100 MD56;100 MD25;100 MD57;100 MD26;100 MD58;100 MD27;100 MD59;100 MD28;100 MD60;100 MD29;100 MD61;100 MD30;100 MD62;100 MD31;100 MD63;100 C.2 PJ200 Docking Interface Connector (140-pin) Table C-2 Docking Interface connector pin assignments (140-pin)(1/3) Pin No.
Page 210 File No. 960-140 Table C-2 Docking Interface connector pin assignments (140-pin)(2/3) Pin No. Signal Name Pin No. Signal Name DAD24;100 DAD25;100 DAD26;100 DAD27;100 DAD28;100 DAD29;100 DAD30;100 DAD31;100 ECGPI1;100 DPGNTH;000 DCKRUN;000 DDEVSL;000 DTRDY;000 DSPOT;000 DINT3;000 DINT4;000 DAUDIO;100 DCDSPK;110 DCDSMI;000 DEJREQ;100 ECGPO0;100 QSWON;100 DPREQH;000 DOCPWN;100...
Page 211 File No.960-140 Table C-2 Docking Interface connector pin assignments (140-pin)(3/3) Pin No. Signal Name Pin No. Signal Name USBVC1 USBVC1 USBDP1;100 USBDN1;000 MOUSDT;120 MOUSCK;120 EXKBCK;101 EXKBDT;101 CVSYNC;100 CRTEN;000 CHSYNC;100 MONID1;000 CRED;100 CGREEN;100 CBLUE;100 PNLST;100 MONID3;000 DCD1;010 DSR1;010 RXD1;110 CTS1;010 RI1;010 RTS1;000 TXD1;100 DTR1;000...
Page 212: Pj250 Fl Inverter I/F Connector (60-Pin
File No. 960-140 C.3 PJ250 FL Inverter I/F Connector (60-pin) Table C-3 FL Inverter I/F connector pin assignments (60-pin) Pin No. Signal name Pin No. Signal Name PWRSW;000 CHGGRN;000 CHGDRG;000 DCGRN;000 PVLED DCORG;000 ISARST;000 IPSCLK;000 IPSDAT;100 ENDATA;120 PNLD05;120 PNLD04;120 PNLD03;120 PNLD02;120 PNLD01;120 PNLD00;120...
Page 213: Pj300 Rtc Battery Connector (3-Pin
File No.960-140 C.4 PJ300 RTC Battery Connector (3-pin) Table C-4 RTC Battery connector pin assignments (3-pin) Pin No. Signal name Pin No. Signal Name RTCVDD;100 C.5 PJ301 HDD Connector (44-pin) Table C-5 HDD connector pin assignments (44-pin) Pin No. Signal name Pin No.
Page 214: Pj302 Keyboard Connector (24-Pin
File No. 960-140 C.6 PJ302 Keyboard Connector (24-pin) Table C-6 Keyboard connector pin assignments (24-pin) Pin No. Signal name Pin No. Signal Name KBRT6;100 KBRT5;100 KBRT4;100 KBRT3;100 KBRT1;100 KBRT2;100 KBRT0;100 KBRT7;100 KBOT05;000 KBOT06;000 KBOT09;000 KBOT02;000 KBOT08;000 KBOT07;000 KBOT10;000 KBOT03;000 KBOT04;000 KBOT01;000 KBOT00;000 KBOT11;000...
Page 215: Pj303 Pc Card Slot Connector (150-Pin
File No.960-140 C.7 PJ303 PC Card Slot Connector (150-pin) Table C-7 PC card slot connector pin assignments (150-pin) (1/3) Pin No. Signal name Pin No. Signal Name ACCD1;000 ACAD00;000 ACAD02;100 ACAD01;100 ACAD04;100 ACAD03;100 ACAD06;100 ACAD05;100 ACD14;100 ACAD07;100 ACAD08;100 ACCBE0;000 ACAD10;100 ACAD09;100 ACAVS1;100 ACAD11;100...
Page 216 File No. 960-140 Table C-7 PC card slot connector pin assignments (150-pin) (2/3) Pin No. Signal name Pin No. Signal Name ACAD25;100 ACAUDI;100 ACAD26;100 ACSTSC;100 ACAD27;100 ACAD28;100 ACAD29;100 ACAD30;100 ACD02;100 ACAD31;100 ACCLKR;000 ACCD2;000 BCCD1;000 BCAD00;100 BCAD02;100 BCAD01;100 BCAD04;100 BCAD03;100 BCAD06;100 BCAD05;100 BCD14;100 BCAD07;100...
Page 217: Pj401 Headphone Connector (5-Pin
File No.960-140 Table C-7 PC card slot connector pin assignments (150-pin) (3/3) Pin No. Signal name Pin No. Signal Name BCAD17;100 BCAD18;100 BCAD19;100 BCAD20;100 BCVS2;100 BCAD21;100 BCRST;000 BCAD22;100 BCSERR;000 BCAD23;100 BCREQ;000 BCAD24;100 BCCBE3;000 BCAD25;100 BCAUDI;100 BCAD26;100 BCSTSC;100 BCAD27;100 BCAD28;100 BCAD29;100 BCAD30;100 BCD02;100 BCAD31;100...
Page 218: Pj471 External Microphone Connector (5-Pin
File No. 960-140 C.10 PJ471 External Microphone Connector (5-pin) Table C-10 External Microphone connector pin assignments (5-pin) Pin No. Signal name Pin No. Signal Name C.11 PJ500 AC Adapter Connector (2-pin) Table C-11 AC adapter connector pin assignments 23-pin) Pin No. Signal name Pin No.
Page 219: Appendix D Keyboard Scan/Character Codes
File No. 960-140 Appendix D Appendix D Keyboard Scan/Character Codes Table D-1 Scan codes (set 1 and set 2) (1/4) Code set 1 Code set 2 Note Keytop Make Break Make Break ‘ ~ 7 & BkSp...
Page 220 File No. 960-140 Table D-1 Scan codes (set 1 and set 2) (2/4) Code set 1 Code set 2 Note Keytop Make Break Make Break 29 (42) Caps Lock ‘ “ Enter Shift (L) No.102 , < . > Shift (R)
Page 221 File No. 960-140 Table D-1 Scan codes (set 1 and set 2) (3/4) Code set 1 Code set 2 Note Keytop Make Break Make Break Ctrl Alt (L) Space ALT (R) Home PgUp PgDn...
Page 222 File No. 960-140 Table D-1 Scan codes (set 1 and set 2) (4/4) Code set 1 Code set 2 Note Keytop Make Break Make Break PrintSc Pause — — — — 1F E0 2F E0 Notes: 1. * Scan codes differ by mode. 2.
Page 223 File No. 960-140 Table D-2 Scan codes with left Shift key Code set 1 Code set 2 Make Break Make Break E0 AA E0 52 E0 2A E0 F0 12 F0 70 E0 AA E0 53 E0 2A E0 F0 12 F0 71 E0 AA E0 4B...
Page 224 File No. 960-140 Table D-3 Scan codes in Numlock mode Code set 1 Code set 2 Make Break Make Break E0 2A E0 AA E0 F0 12 E0 2A E0 AA E0 F0 12 E0 2A CB E0 AA 6B E0 F0 12 Home E0 2A E0 AA...
Page 225 File No. 960-140 Table D-5 Scan codes in overlay mode Keytop Code set 1 Code set 2 Make Break Make Break (•) (–) Table D-6 Scan codes with Ctrl key Shift Code set 1 Code set 2 Make Break Make Break Prt Sc Common...
Page 226 File No. 960-140 Table D-7 Scan codes with Alt key Shift Code set 1 Code set 2 Make Break Pause Common E1 1D 45 E1 SD E1 F0 14 F0 77 Ctrl* E0 46 7E E0 F0 7E *: This key generates only make codes.
Page 227: Appendix E Key Layout
File No. 960-140 Appendix E Appendix E Key Layout United States (US) Keyboard Figure E-1 US keyboard United Kingdom (UK) Keyboard Figure E-2 UK keyboard...
Page 228: German (Gr) Keyboard
File No. 960-140 German (GR) Keyboard Figure E-3 GR keyboard French (FR) Keyboard Figure E-4 FR keyboard...
Page 229: Spanish (Sp) Keyboard
File No. 960-140 Spanish (SP) Keyboard Figure E-5 SP keyboard Italian (IT) Keyboard Figure E-6 IT keyboard...
Page 230: Scandinavian (Sc) Keyboard
File No. 960-140 Scandinavian (SC) Keyboard Figure E-7 SC keyboard Swiss-German (SL) Keyboard Figure E-8 SL keyboard...
Page 231: Appendix F Wiring Diagrams
File No. 960-140 Appendix F Appendix F Wiring Diagrams Parallel Port Wraparound Connector Figure F-1 Parallel port wraparound connector Serial Port Wraparound Connector Figure F-2 Serial port wraparound connector...
Page 232: Serial Port Direct Cable (9-Pin To 9-Pin
File No. 960-140 Serial Port Direct Cable (9-Pin to 9-Pin) Figure F-3 Serial port direct cable (9-pin to 9-pin) Serial Port Direct Cable (9-Pin to 25-Pin) Figure F-4 Serial port direct cable (9-pin to 25-pin)
Page 233: Appendix G Bios Rewrite Procedures
File No. 960-140 Appendix G Appendix G BIOS Rewrite Procedures This Appendix explains how to rewrite the system BIOS program when you update the system BIOS. Tools To rewrite the BIOS, you need the following tool: Diagnostics disk for the computer Rewriting the BIOS 1.
Page 234 File No. 960-140...
Page 235: Keyboard
File No. 960-140 Appendix H Appendix H Reliability The following table shows MTBF (Mean Time Between Failures) for each component. Table H-1 MTBF Component Time (hours) 50,000 Keyboard 37,000 300,000 30,000 Pointing Device 37,000 AC adapter 50,000...
Page 236 File No. 960-140...

Toshiba Libretto 100CT User Manual

Table of Contents

Chapter 1 Hardware Overview

Table of Contents

Chapter 2 Troubleshooting Procedures

Table of Contents

Chapter 3 Tests and Diagnostics

Table of Contents

Chapter 4 Replacement Procedures

Table of Contents

Appendix

Appendix A Handling the LCD Module

Appendix Contents

Appendix B Board Layout

Appendix C Pin Assignments

Appendix D Keyboard Scan/Character Codes

Appendix E Key Layout

Appendix F Wiring Diagrams

Appendix G BIOS Rewrite Procedures

Appendix H Reliability

Quick Links

Chapters

Troubleshooting

Related Manuals for Toshiba Libretto 100CT

Summary of Contents for Toshiba Libretto 100CT

Table of Contents