Page 1 Features The 100CS is one of the lightest and most advanced portable computers available. Utilizing advanced technology and high-speed components, the computer offers multimedia functions, excellent display legibility, battery operation, and IBM PC/AT compatibility. The unit con- sists of the following features: K Microprocessor ®...
Page 2 AC-out. The NoteDock does not support the following ports: floppy disk, audio in - audio out, joystick, and selectable ID. K AccuPoint A pointer control stick, located in the center of the keyboard, provides convenient control of the cursor without requiring desk space for a mouse. 100CS...
Page 3 The 100CS Personal Computer is shown in figure 1-1. Figure 1-1 100CS personal computer The system configuration is shown in figure 1-2. Figure 1-2 System unit configuration 100CS...
Page 4: System Unit Block Diagram
System Unit Block Diagram Figure 1-3 is a block diagram of the system unit. Figure 1-3 System board block diagram 100CS...
Page 5 - One FDC TC8565 equivalent - One VFO TC8568 equivalent - One I/O port decoder - One SIO port control - One printer port control supported ECP - One FDD control - One speaker control - One power communication control 100CS...
Page 6 Internal Communication controller KBC, main CPU communication register file KBC interrupt controller KBC communication controller C bus control (Not used) • Others Speaker volume adjust PWM control Sound board interface (Not used) BIOS-ROM interface SMI control IrDA (SIR) control (Not used) 100CS...
Page 7 K Real Time Clock (RTC) One T9934 chip is used. The T9934 has 128 bytes of memory. Fourteen bytes of memory are used for the calendar and clock. The remaining 114 bytes are used for the system configuration data. 100CS...
Page 8 Number of cylinders Access time (ms) Track to track Average Head settling time Recording track density (tpi) Data transfer rate (Kbps) Rotation speed (rpm) Recording method Modified Frequency Modulation (MFM) *1:32 sector/track (256bytes per sector) *2:16 sector/track (256bytes per sector) 100CS...
Page 9: Inch Hard Disk Drive
The HDD is shown in figure 1-5. Figure 1-5 2.5inch HDD Specifications for the HDD are listed in table 1-2. Table 1-2 2.5-inch HDD specifications Items Toshiba MK1924FCV IBM DBOA-2528 Storage capacity (million byte) Formatted Number of disks Data heads...
Page 10 The computer pointer control stick, located in the center of the keyboard, provides convenient control of the cursor without requiring desk space for a mouse. The keyboard is shown in figure 1-6. See Appendix E for optional keyboard configurations. Figure 1-6 Keyboard 1-10 100CS...
Page 11 The DSTN LCD is shown in figure 1-7. The specifications for the LCD are listed in table 1-3. Figure 1-7 DSTN color LCD Table 1-3 DSTN color LCD specifications Item Specifications Number of Dots (dots) 640x480 Dot pitch (mm) 0.33x0.33 Display area (mm) 217.2 (W)x164.4 (H) Contrast (Typically) 20:1 FL current (mA) 5.0/3.0 (Bright/Semi-bright) 1-11 100CS...
Page 12 The FL inverter board supplies high frequency current to light the LCD’s Fluorescent Lamp. The specifications for the FL inverter are listed in table 1-4. Table 1-4 DSTN color FL inverter board specifications Item Specifications Input Voltage 4 to 5.5 Power 4.25 Output Voltage (Vrms) 1,100 Current (mA) 5.0/3.0 (Bright/Semi-bright) 1-12 100CS...
Page 13: Power Supply
The power supply output rating is specified in table 1-5. Table 1-5 Power supply output rating Regulation Use for Name voltage tolerance System logic, FDD, HDD, ±5 Display CPUV +2.9 ±5 Flash ROM, PCMCIA ±5 CPU, RAM, GA +3.3 ±0.3V VRAM, GA +4.7 ±5 1-13 100CS...
Page 14: Main Battery
The AC power cord is connected and the battery is fully charged whether the power is on or off. Blink orange The battery is low. The AC power cord must be connected to recharge the battery. No light Under any other conditions, the LED does not light. 1-14 100CS...
Page 15: Battery Charging Control
The fixed time limit for quick charge is exceeded. J Trickle Battery Charge When the main battery is fully charged and the AC power cord is attached, the power supply microprocessor automatically changes from quick charge to trickle charge. 1-15 100CS...
Page 16: Backup Battery
Table 1-9 shows the charging time and data preservation period of the RTC battery. Table 1-9 RTC battery charging/data preservation time Item Time Charging Time With AC power 48 H or main battery Data preservation period (full charge) 1 month 1-16 100CS...
Page 17: Troubleshooting
The following tools are necessary for implementing the troubleshooting procedures: Diagnostics disk Phillips screwdriver Toshiba MS-DOS system disk(s) (You must install the following onto the disk: SYS.COM, FORMAT.COM, FDISK.COM and FDISK.EXE) 2DD or 2HD formatted work disk for floppy disk drive testing...
Page 18: Troubleshooting Flowchart
Use the flowchart in figure 2-1 as a guide for determining which troubleshooting procedures to execute. Before going through the flowchart steps, do the following: K Verify with the customer that Toshiba MS-DOS is installed on the hard disk. Non- Toshiba operating systems can cause the computer to malfunction.
Page 19 Figure 2-1 Troubleshooting flowchart (1/2) 100CS...
Page 20 2.6. If an error is detected on the keyboard test, perform the keyboard troubleshooting procedures in section 2.7. If an error is detected on the display test, perform the display troubleshooting procedures in section 2.8. 100CS...
Page 21: Power Supply Troubleshooting
The AC power cord connects to the AC IN socket connec- tor on the back side of the computer. When the AC power cord is connected to the 100CS, the AC PS unit charges the batteries.
Page 22 Replace the AC PS unit with a new one and restart the system. If the system is still not functioning properly, perform Check 2. Check 2 Replace the system board with a new one and restart the system. If the problem still exists, other FRUs may be damaged. 100CS...
Page 23: Procedure 1 Message Check
K If an error message is shown on the display, perform Check 1. K If there is no error message, go to Procedure 2. K If the Toshiba MS-DOS is properly loaded, go to Procedure 3. F1 key Check 1 If one of the following error messages is displayed on the screen, press the as the message instructs.
Page 24 DMAC #2 ERROR (18) PIC #1 ERROR (19) PIC #2 ERROR KBC ERROR (20) (21) HDC ERROR (22) HDD #0 ERROR (23) HDD #1 ERROR (24) NO FDD ERROR FDC ERROR (25) (26) TIMER INTERRUPT ERROR (27) RTC UPDATE ERROR 100CS...
Page 25 IRT test ends. For example, when the printer port LED displays 1F and halts, the IRT test has already completed the Display initialization. In this instance, the IRT indicates an error has been detected during the system memory test. 100CS...
Page 26 PIC #X ERROR Mouse initialization — KBC initialization KBC ERROR HDD initialization HDC ERROR/HDD #0 ERROR FDD initialization FDC ERROR/NO FDD ERROR Printer initialization — SIO initialization — Timer initialization RTC UPDATE ERROR TIMER INTERRUPT ERROR NDP initialization — 2-10 100CS...
Page 27 Convert the status from binary to hexadecimal notation. If the final LED status is FFh (normal status), go to Procedure 4. If the final LED status matches any of the test status values in table 2-2, perform Procedure 5. 2-11 100CS...
Page 28 Replace the system board with a new one. Refer to chapter 4 for instructions on how to remove and replace the system board. Check 2 Replace the HDD I/F board with a new one. Refer to chapter 4 for instructions on how to remove and replace the sound board. 2-12 100CS...
Page 29 FDD head cleaning is one option available in the Diagnostic Program . Detailed operation is given in chapter 3, Tests and Diagnostics . After Toshiba MS-DOS loads, run the Diagnostic Program and then clean the FDD heads using the cleaning kit. If the FDD still does not function properly after cleaning, go to Proce- dure 2.
Page 30: Procedure 2 Diagnostic Test Program Execution Check
The Floppy Disk Drive Diagnostic Test program is stored on the Diagnostics Disk. After Tests and Diag- loading Toshiba MS-DOS, run the diagnostic program. Refer to Chapter 3, nostics, for more information about the diagnostics test procedures. Floppy disk drive test error codes and their status names are described in table 2-3. Make sure the floppy disk in the FDD is formatted correctly and that the write protect tab is dis- abled.
Page 31 The FDD or its cable may be defective or damaged. Replace the FDD with a new one following the steps in chapter 4, Replacement Procedures . If the FDD is still not functioning properly, perform Check 4. Check 4 Replace the system board with a new one following the steps in chapter 4. 2-15 100CS...
Page 32: Hard Disk Drive Troubleshooting
Manual for more information about how to perform the BACKUP. Procedure 1 Partition Check Insert the Toshiba MS-DOS system disk and turn on the computer. Then perform the follow- ing 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 Procedure 2.
Page 33: Procedure 2 Message Check
Non-System disk or disk error Replace and press any key Check 3 Using the Toshiba MS-DOS system disk, install a system program on the hard disk using the SYS command. If the following message appears on the display, the system program has been transferred to the HDD.
Page 34: Procedure 3 Format Check
HDD. If the following message appears on the display, the HDD is formatted. Format complete If any other 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 35 Replace the HDD unit with a new one following the instructions in chapter 4, Replacement Procedures . If the HDD is still not functioning properly, perform Check 2. Check 2 Replace the system board with a new one following the instructions in chapter 4. 2-19 100CS...
Page 36: Keyboard Troubleshooting
Perform Procedure 1 again. If the keyboard is still not functioning properly, perform Check 2. Check 2 The keyboard controller on the system board may be damaged. Replace the system board with a new one. Refer to chapter 4 for more information. 2-20 100CS...
Page 37: Procedure 3 Diagnostic Test Program Execution Check
The Display Test program is stored on the computer Diagnostic Disk. This program checks the display controller on the system board. After loading Toshiba MS-DOS, run the Diagnos- tic Program. Refer to chapter 3, Tests and Diagnostics , for details.
Page 38 Replacement Procedures , for more information about how to disassemble the computer. Figure 2-3 Display connection If any of these cables is not connected, firmly reconnect it and repeat Procedures 1 and 2. If the problem still exists, perform Procedure 5. 2-22 100CS...
Page 39 Check 5 Replace the display cable with a new one and test the display again. If the problem still exists, perform Check 6. Check 6 The system board may be damaged. Replace the system board with a new one. 2-23 100CS...
Page 40: The Diagnostic Test
See your MS-DOS documentation for information on the config.sys file. The DIAGNOSTICS MENU consists of the following functions. K DIAGNOSTIC TEST K HARD DISK FORMAT K HEAD CLEANING K LOG UTILITIES K RUNNING TEST K FDD UTILITIES K SYSTEM CONFIGURATION K EXIT TO MS-DOS K SETUP 100CS...
Page 41 K Enhanced port replicator (Expansion test) The following sections detail the tests within the Diagnostic Test function of the DIAGNOS- TIC TEST MENU. Refer to Sections 3.15 through 3.23 for detailed information on the remaining Service Program Module functions. 100CS...
Page 42: Executing The Diagnostic Test
Executing the Diagnostic Test Toshiba MS-DOS is required to run the DIAGNOSTICS PROGRAM. To start the DIAG- NOSTIC PROGRAM follow these steps: Insert the Diagnostics disk into the computer’s floppy disk drive and turn on the computer. The following menu will appear: TOSHIBA personal computer xxx DIAGNOSTICS version X.XX (c) copyright TOSHIBA Corp.
Page 43 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 44 Use the arrow keys to move the cursor to the desired option and press Table 3-1 in section 3.3 describes the function of each test on the subtest menu. Table 3-2 in section 3.15 describes the error codes and error status for each error. 100CS...
Page 45: Subtest Names
80x25/30 Character display 320x200 Graphics display 640x200 Graphics display 640x350/480 Graphics display Display page “H” pattern display/Border color LED/DAC pallet Color display Sequential read Sequential read/write Random address/data Write specified address Read specified address PRINTER Ripple pattern Function Wraparound 100CS...
Page 46 Random address/data Cross talk & peak shift Write/read/compare (CE) Write specified address Read specified address ECC circuit Sequential write W-R-C specified address REAL TIMER Real time Backup memory Real time carry NDP test EXPANSION PCMCIA wraparound (Internal) PCMCIA wraparound (External) 100CS...
Page 47: System Test
The ROM checksum tests the system board from address F0000h to FFFFFh (64KB). Subtest 02 Not used Subtest 03 Not used Subtest 04 Not used Subtest 05 Thermistor check This subtest checks the thermistor that controls CPU temperature. The ther- mistor cable connects to PJ1 on the system board. 100CS...
Page 48: Memory Test
CONFIG.SYS file. This subtest writes constant data and address data to extended memory (maxi- mum address 100000h), then reads the new data and compares the result with the original data. The constant data is FFh, AAh, 55h, and 00h. 100CS...
Page 49 (‘7000’:’Program’ size to ‘7000’:=7FFF’ (32 KB)) to check the hit-miss ratio (on/off status). One test takes 3 seconds. Number of misses < Number of hits → OK Number of misses ≥ Number of hits → Fail 3-10 100CS...
Page 50: Keyboard Test
When any key is pressed, the corresponding key on the screen changes to an “ *” character. Holding a key down enables the auto-repeat function which causes the key’s display character to blink. Press Key Display If test OK, Press [Del] [Enter] Key 3-11 100CS...
Page 51 If this test does not detect an error, it returns to the subtest menu. If this test detects an error, the following message appears: KBD - MOUSE INTERFACE ERROR [[ HALT OPERATION ]] 1: Test end 2: Continue 3: Retry 3-12 100CS...
Page 52 If two IPS switches are pressed at the same time, the subtest menu is displayed. << PRESS BUTTON1 + BUTTON2 THEN END >> When a button is pressed, the display alternates as shown below. 3-13 100CS...
Page 53: Display Test
NEXT LINE SHOWS BLINKING DISPLAY. BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB 00 08 ; BLACK 01 09 ; BLUE 04 0C ; RED 05 0D ; MAGENTA 02 0A ; GREEN 03 0B ; CYAN 06 0E ; YELLOW 07 0F ; WHITE PRESS [Enter] KEY 3-14 100CS...
Page 54 In this subtest, the character set (addressed 00h to FFh) is displayed in the 40*25 character mode as shown below. Press [Enter] KEY To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break. 3-15 100CS...
Page 55 4 and D. One example is shown below: 320*200 GRAPHICS DISPLAY COLOR SET X : [X] GREEN BROWN CYAN MAGENTA WHITE PRESS [Enter]KEY Pressing Enter toggles between tests. To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break . 3-16 100CS...
Page 56 640x480 dot graphics mode 10, 12 as shown below: 640*XXX GRAPHICS DISPLAY EVEN DOTS ODD DOTS ALL DOTS DRIVEN DRIVEN DRIVEN Pressing Enter changes the size of the displayed image. To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break. 3-17 100CS...
Page 57 If an external CRT display is connected to the computer, choose 1 to display the following message: [Border color test (7 times press [Enter] key] Press Enter to execute the border color test. To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break. 3-18 100CS...
Page 58 64 shades of red, green, and blue successively and the last three display 64 shades of red, green, and blue. Also, it sets the video mode to ‘5F’ and displays 256 colors. Press Enter to change the display. Press Ctrl + Break to exit. 3-19 100CS...
Page 59: Floppy Disk Test
(2HD): Tracks 0 to 79. The start track is specified when the FDD test is started from the Diagnostic Test Menu. Refer to step 3 at the beginning of this section to set the start track. 3-20 100CS...
Page 60 01. The data is then read and compared to the original data. Subtest 04 Write Specified Address This subtest writes specified data to a specified track, head, and address. Subtest 05 Read Specified Address This subtest reads data from a specified track, head, and address. 3-21 100CS...
Page 61: Printer Test
Select the printer channel number and press Enter to execute the selected subtest. Subtest 01 Ripple Pattern This subtest prints characters for codes 20h through 7Eh line-by-line while shifting one character to the left at the beginning of each new line. 3-22 100CS...
Page 62 The printer wraparound connector (34M741986G01) wiring diagram is described in Appendix F. This subtest checks the output and bidirectional modes of the data control and status lines through the printer wraparound connector. 3-23 100CS...
Page 63: Async Test
(34M741621G01) must be connected to the RS-232-C port. The RS- 232-C wraparound connector wiring diagram is described in Appendix This subtest checks the data send/receive function through the wraparound connector. Subtest 02 Board (#1) <=> board (#2) This subtest is not used. 3-24 100CS...
Page 64 This subtest is used with subtest 03 described above. This subtest receives the data from the send side, then sends the received data. Subtest 05 Interrupt Test This subtest checks the Interrupt Request Level of IRQ 4, 3, and 5 from the send side. 3-25 100CS...
Page 65: Hard Disk Test
This should be done with the BACKUP command in the Toshiba Companion Utility. Do not use the MS-DOS BACKUP command. After the hard disk test is completed, execute the Toshiba MS-DOS FDISK command which will set the partition, then execute the Toshiba MS-DOS FORMAT command.
Page 66 • Forward sequential • Reverse sequential • Random Subtest 03 Random Address/Data This subtest writes random data to random addresses on the HDD cylinder, head, and sector. This data is then read and compared to the original data. 3-27 100CS...
Page 67 This subtest writes specified 2-byte data to all of the cylinders on the HDD. Subtest 10 W-R-C specified address This subtest writes data to a specified cylinder and head on the HDD, then reads the data and compares it to the original data. 3-28 100CS...
Page 68: Real Timer Test
Writes 1-bit of “off” data to address 0Eh through 80h Writes the data pattern AAh through 55h to the RTC 114-byte memory (address 0Eh to 7Fh) The subtest reads and compares this data with the original data. To exit, press Ctrl + Break . 3-29 100CS...
Page 69 Current date : 12-31-1994 Current time : 23:59:58 Pressing Enter displays the following: Current date : 01-01-1995 Current time : 00:00:00 PRESS [Enter] KEY TO EXIT TEST Press Ctrl + Break to exit. 3-30 100CS...
Page 70: Ndp Test
The NDP test contains one subtest that tests the computer’s NDP functions. Subtest 01 This test checks the following functions of NDP: K Control word K Status word K Bus K Addition K Multiplication Press Ctrl + Break to exit. 3-31 100CS...
Page 71: Expansion Test
Other lines (BSY#, BVD1) nn=21, 00 Subtest 02 PCMCIA wraparound (External) This test checks the signal lines of the enhanced port replicator’s PCMCIA slots. Procedures for conducting this test are the same as for subtest 01 PCMCIA wraparound (Internal) described above. 3-32 100CS...
Page 72: Error Code And Error Status Names
FDD Not Drive Error Time Out Error Write Buffer Error Printer Time Out Fault Select Line Out Of Paper Power Off Busy Line ASYNC DSR On Time Out CTS On Time Out RX-READY Time Out TX-BUFFER Full Time Out Parity Error 3-33 100CS...
Page 73 Control Word Error Status Word Error Bus Error Addition Error Multiply Error 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 No PCMCIA 3-34 100CS...
Page 74: Hard Disk Test Detail Status
“1” --- Drive is ready for data transfer. CORR “0” --- Other. (Corrected data) “1” --- Correctable data error is corrected. “0” --- Other. (Index) “1” --- Index is sensed. “0” --- Other. (Error) “1” --- The previous command was terminated with some error. 3-35 100CS...
Page 75 “1” Illegal command error or a drive status error occurs. TK00 “0” The hard disk has found track 0 during a recalibrate command. (Track 0) “1” The hard disk could not find track 0 during a recalibrate command. —— Not used. 3-36 100CS...
Page 76: Hard Disk Format
NOTE: The contents of the hard disk will be erased when this program is executed. Before executing the function, transfer the contents of the hard disk onto a floppy disk(s). This can be done with the BACKUP in the Toshiba Companion Utility. See the Toshiba MS-DOS manual for details. 3.17.1 Function Description...
Page 77 NOTE: After the HDD has been formatted, execute the Toshiba MS-DOS FDISK command to partition the HDD. Next, execute the Toshiba MS-DOS FORMAT com- mand. Refer to the Toshiba MS-DOS manual for more information about using these commands. Selecting TEST 2 and pressing Enter on the DIAGNOSTIC MENU displays the following messages: DIAGNOSTICS - HARD DISK FORMAT : VX.XX...
Page 78 (f) below. Track verification A check is made of all tracks and if an ECC error, ECC-correctable-data error or record-not-found error is detected at a track, that track is automati- cally formatted as a bad track. 3-39 100CS...
Page 79 Drive number select (1:#1, 2:#2) ? Bad tracks will be displayed in the format shown below. [[cylinder, head = 0123 03]] Press Enter to return to the Hard Disk Format menu. 3-40 100CS...
Page 80: Head Cleaning
Remove the Diagnostics Disk from the FDD, then insert the cleaning disk and press Enter. When the cleaning start message appears, the FDD head cleaning has begun. The display automatically returns to the DIAGNOSTIC MENU when the program is completed. 3-41 100CS...
Page 81: Log Utilities
001 FDD 01 0000 180 00001 00 00 FDD - TIME OUT ERROR Address Error status Pass count HDC status Subtest number Read data Test name Write data Error count Error status name [[1:Next,2:Prev,3:Exit,4:Clear,5:Print,6:FD Log Read,7:FD Log Write]] 3-42 100CS...
Page 82 The 7 key writes the log information to a floppy disk. In the case of “error retry OK,” a capital “R” will be placed at the beginning of the error status. However, it is not added to the error count. 3-43 100CS...
Page 83: Running Test
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.] Ctrl + This program is executed continuously. To terminate the program, press Break. 3-44 100CS...
Page 84: Floppy Disk Drive Utilities
FDD and HDD. 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: 2D: Double-sided, double-density, 48/67.5 TPI, MFM mode, 512 bytes, 9 sectors/track.
Page 85 When COPY is selected, the following message appears: FLOPPY DISK FORMAT & COPY : VX.XX Type select (0:2DD-2DD,1:2D-2D,2:2D-2HD,3:2HD-2HD) ? 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. 3-46 100CS...
Page 86 —— Max. address —— [Track ] = 0079 [ Head ] = 01 [Sector] = 09 Track number ?? Set the track number you want to dump. Then, the system will access the disk and dump a list. 3-47 100CS...
Page 87: System Configuration
* - 1 HARD DISK DRIVE(S) * - 1 PRINTER ADAPTER * - XXXXXKB EXTENDED MEMORY * - 1 MATH CO-PROCESSOR * - CPU CLOCK = 75MH * - 2 PCMCIA slot Press [Enter] Key Press Enter to return to the DIAGNOSTIC MENU. 3-48 100CS...
Page 88 Hard Disk HDD Mode Password I/O Ports Serial Port Parallel Port Others Power-up Modes CPU Cache Battery Save Mode Battery Save Options Battery Level Alarm Volume System Beep Panel Power On/Off Alarm Power On Keyboard Pointing Devices Boot Priority 3-49 100CS...
Page 89: Accessing The Setup Program
If the changed item does not require the system to reboot, the following message is displayed: Are you sure? (Y/N) If the changed item requires the system to reboot, the following message is dis- played: Are you sure? (Y/N) The changes you made will cause the system to reboot. 3-50 100CS...
Page 90 Extended This field displays the amount of extended memory the computer has avail- able. Shadow BIOS ROM This field displays 192 KB of RAM, which is reserved for the Shadow BIOS ROM. 3-51 100CS...
Page 91 This option is used to select the display when booting up. Internal/External Selects an external CRT if one is connected, other- wise it selects the internal LCD. Simultaneous Selects both the internal LCD and the external CRT for simultaneous display. 3-52 100CS...
Page 92 The user password has been registered. Not registered The user password has not been registered. For details on setting the user password refer to your 100CS User’s Manual. I/O ports This option controls settings for the serial and parallel ports.
Page 93 This option lets you choose between AutoResume and boot mode. You can also set this option using hotkeys. AutoResume is effective with either the internal LCD or with an external monitor. Boot Turns on boot mode. (Default) Resume Turns on the AutoResume feature. 3-54 100CS...
Page 94 The following shows low power settings. COM/PCMCIA/PRT Processing Speed CPU Sleep Mode Enabled Display Auto Off 03 Min. HDD Auto Off 03 Min. System Auto Off 30 Min. LCD Brightness Semi-bright NOTE: In boot mode, the System Auto Off message does not appear. 3-55 100CS...
Page 95 Disables HDD automatic power off. xx Min. Automatically turns off power to the hard disk drive if it is not used for the duration set. The duration xx can be set to 1, 3, 5, 10, 15, 20, or 30 minutes. 3-56 100CS...
Page 96 This option can also be set by hotkeys. Disables the alarm. Sets the alarm volume to low. Medium Sets the alarm volume to medium. High Sets the alarm volume to high. (Default) 3-57 100CS...
Page 97 Disables the alarm. NOTE: Do not remove the AC cable and battery pack at the same time when you use this feature. If you do so, the setting will be lost. You must reset this option when you restore power. 3-58 100CS...
Page 98 + Right Alt* Left Alt + Left Shift Right Alt + Right Shift Left Alt + Caps Lock * If these selections are made, you cannot warm boot the system by pressing Ctrl + Alt + Del . 3-59 100CS...
Page 99 HDD → FDD The computer looks for bootable files first on the HDD and next on the FDD. You can reverse the order by holding down the F10 key while the computer is booting. This procedure alternates the setup setting. 3-60 100CS...
Page 100 K Optional Memory Card K HDD K Keyboard K Sub-battery and VGA board Display K Top Cover and Display Assembly Mask FL inverter Board K Membrane Switch LCD Module K AC PS Unit K Diskette Drive K System Board 100CS...
Page 101: Safety Precautions
1. Always use the lithium ion battery pack or back-up battery that is authorized by Toshiba or compatible with the unit. Since other battery packs have different specifi- cations, they may be incompatible with the unit, and may burst or explode. Heating or disassembling the battery pack could cause leakage of alkaline solution.
Page 102: Before You Begin
The computer contains many sharp edges and corners, so be careful not to injure yourself. After you have replaced an FRU, make sure the computer is functioning properly by performing the appropriate test on the FRU you have fixed or replaced. 100CS...
Page 103: Disassembly Procedures
FRU. After installing an FRU in the computer confirm that the FRU and the computer are function- ing properly. 100CS...
Page 104: Tools And Equipment
K M2 0.22 Nm (2.2 kgfcm) K M2.5 0.36 Nm (3.5 kgfcm) K FDD 0.22 Nm (2.2 kgfcm) K HDD 0.3 Nm to 0.28 Nm (M3) (3.1 kgfcm to 2.9 kgfcm) 100CS...
Page 105: The Battery Pack
Pull back the battery latch and lift out the battery pack . Figure 4-2 Removing the battery pack NOTE: For environmental reasons, do not throw away a spent battery pack. Please return spent battery packs to your Toshiba dealer. 100CS...
Page 106: Installing The Battery Pack
WARNING: The battery is a nickel metal hydride battery and should be replaced only by your dealer or by a Toshiba service representative. The battery can explode if not properly replaced, used, handled, or disposed of. Dispose of the battery as required by local ordinances or regulations.
Page 107: Optional Pc Card
Remove the battery pack as described in section 4.2. Press the eject button on the computer (the top button for the top card and the bottom button for the bottom card). The card will pop out slightly for removal. Figure 4-4 Removing the PC card 100CS...
Page 108 When the card is fully seated, an eject button will pop out: the top button for the top connector and the bottom button for the bottom connector. Pull the eject button out slightly and bend it to lock the card. Install the battery pack as described in section 4-2. 100CS...
Page 109: Optional Memory Module
Remove two M2x4 screws securing the module to a brace at the center of the module. Figure 4-7 Removing the memory module Use a thin object to lift up the edge to disengage the connectors, then grasp the module by the edges and remove it. 4-10 100CS...
Page 110 Secure the module to the brace with two M2x4 screws . Figure 4-8 Inserting the memory module Lay the cover in place and secure it with two M2x4 screws (figure 4-6). Install the battery pack and optional PC card as described in sections 4.2 and 4.3. 4-11 100CS...
Page 111: Hard Disk Drive
4.2, 4.3, and 4.4. Remove two M2.5x6 screws securing the HDD frame to the computer. Pull the frame forward by its handle to disconnect the HDD. Remove the frame with the HDD. Figure 4-9 Removing the frame with the HDD 4-12 100CS...
Page 112 Seat the HDD in the computer and press to secure the connection. Secure the HDD frame to the computer with two M2.5x6 screws . Install the optional memory module, optional PC card, and battery pack as de- scribed in sections 4.4, 4.3, and 4.2. 4-13 100CS...
Page 113: Removing The Keyboard
Remove the battery pack, optional PC card, optional memory module, and HDD as described in sections 4.2 through 4.5. Release 14 latches on the base cover and remove it. Figure 4-11 Removing the keyboard base Lift out the keyboard and set it on the wrist rest. 4-14 100CS...
Page 114: Installing The Keyboard
M2.5x6 screws . Be sure to replace the ground cable. Seat the keyboard . Seat the keyboard base and secure the 14 latches . Install the HDD, optional memory module, optional PC card, and battery pack as described in sections 4.5, 4.4, 4.3, and 4.2. 4-15 100CS...
Page 115 Remove the battery pack, optional PC card, optional memory module, HDD, and keyboard as described in sections 4.2 through 4.6. Disconnect the sub-battery from PJ503 and remove the battery. Figure 4-13 Removing the sub-battery 4-16 100CS...
Page 116 Disconnect the VGA board connector from system board connector PJ16. Figure 4-14 Removing the VGA board Rotate the board out and disconnect the VGA cable from PJ302 on the VGA board. Figure 4-15 Disconnecting the cables from the VGA board 4-17 100CS...
Page 117 Rotate the board into place and press to connect the VGA board connector to PJ16 on the system board. Install the keyboard, HDD, optional memory module, optional PC card, and battery pack as described in sections 4.6 back through 4.2. 4-18 100CS...
Page 118 Turn the computer upside down and remove three M2.5x8 silver screws and four M2.5x6 screws securing the top cover and display assembly. Figure 4-16 Removing the top cover screws Turn the computer over and lift back the top cover and display assembly so you can disconnect cables. 4-19 100CS...
Page 119 WARNING: If you replace the RTC battery, be sure to use only batteries recommended by Toshiba. Installation of the wrong battery can cause the battery to explode or otherwise cause damage. Figure 4-17 Removing the RTC battery Disconnect the panel close sensor cable from PJ10 and the LED cable from PJ14 on the system board.
Page 120 Turn the computer upside down and secure three M2.5x8 silver screws and four M2.5x6 screws . Install the sub-battery and VGA board, keyboard, HDD, optional memory module, optional PC card, and battery pack as described in sections 4.7 back through 4.2. 4-21 100CS...
Page 121 Disconnect the membrane switch cable from PJ7 on the system board. Peel back the tape to reveal three M2.5x6 screws and remove the screws securing the HDD interface board . Figure 4-19 Removing the HDD interface board Pull off the tape. 4-22 100CS...
Page 122 Connect the membrane switch cable to PJ7 on the system board. Install the top cover and display assembly, sub-battery and VGA assembly, key- board, HDD, optional memory module, optional PC card, and battery pack as described in sections 4.8 back through 4.2. 4-23 100CS...
Page 123 VGA board, top cover and display assembly, and membrane switch as described in sections 4.2 through 4.9. Disconnect the flexible cable from PJ5 on the system board . Remove four M2.5x6 screws and lift out the drive. Figure 4-21 Removing the diskette drive (FDD) 4-24 100CS...
Page 124 Connect the flexible cable to PJ5 on the system board. Install the membrane switch, top cover and display assembly, sub-battery and VGA assembly, keyboard, HDD, optional memory module, optional PC card, and battery pack as described in sections 4.9 back through 4.2. 4-25 100CS...
Page 125 Remove tape securing the holder assembly at the back of the AC PS unit. Lift the AC PS unit out partially and remove it from its plastic base. Turn the AC PS unit out on its side. Figure 4-23 Removing the AC PS unit 4-26 100CS...
Page 126 Seat the VGA cable guard and secure it with one M2.5x6 screw . Install the FDD, top cover and display assembly, membrane switch, sub-battery and VGA assembly, keyboard, HDD, optional memory module, optional PC card, and battery pack as described in sections 4.10 back through 4.2. 4-27 100CS...
Page 127: System Board
Secure six M2.5x6 screws and one M2.5x8 screw . Install the AC PS unit, FDD, membrane switch, top cover and display assembly, sub-battery and VGA assembly, keyboard, HDD, optional memory module, op- tional PC card, and battery pack as described in sections 4.11 back through 4.2. 4-28 100CS...
Page 128: Display Mask
Continue releasing the mask along the sides (four latches on each side), at the bottom (three latches), and display supports ( one latch at the small display support and three latches at the larger display support are not indicated in figure 4-26). Figure 4-26 Removing the display mask 4-29 100CS...
Page 129: Installing The Display Mask
( six latches ). Secure the display mask with two M2.5x6 screws . Attach two rubber seals to cover the screws. Install the optional PC card, optional memory card, and battery pack as described in sections 4.4, 4.3, and 4.2. 4-30 100CS...
Page 130 Remove one M2.5x6 screw securing the contrast control board. Disconnect the contrast control board cable . Disconnect the FL inverter cable from CN1 and the FL cable from CN2 on the FL inverter board . Lift out the board. Figure 4-27 Removing the FL inverter board 4-31 100CS...
Page 131 Secure the FL inverter board with two M2.5x6 screws . Replace the tape over the FL inverter board cables. Install the display mask, optional memory card, optional PC card, and battery pack as described in 4.13, 4.4, 4.3, and 4.2. 4-32 100CS...
Page 132 Secure four M2.5x6 screws and the ground cable on the LCD module . Install the FL inverter board, display mask, optional memory module, optional PC card, and battery pack as described in sections 4.14, 4.13, 4.4, 4.3, and 4.2. 4-33 100CS...
Page 133 Turn the LCD module over and unbend 11 latches securing the LCD module to its frame. Remove four screws securing the LCD module to the frame. Figure 4-29 Unbending the color LCD module latches and removing screws Lift the LCD module out of the frame. 4-34 100CS...
Page 134 Turn the LCD module over and remove two M2x3.4 screws securing the FL holder. Figure 4-30 Removing screws Unthread the cable, which is connected to the FL tube. Be sure no dust or debris contaminates the unit. Figure 4-31 Unthreading the cable 4-35 100CS...
Page 135 Seat the LCD module in its frame and secure it with four screws . Secure the 11 latches of the frame. Install the LCD module, FL inverter board, display mask, top cover, and the battery pack as described in sections 4.15, 4.14, 4.13, 4.4, 4.3, and 4.2. 4-36 100CS...
Page 136: Appendix A Handling The Lcd Module
LCD cover before securing the module with screws. Do not force the module into place, because stress can affect its performance. Also, the panel’s polarized surface is easily scarred, so be careful when handing it. 100CS...
Page 137 Be sure to quickly wipe off any liquid. 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. 100CS...
Page 138 Do not expose the module to direct sunlight or strong ultraviolet rays for long periods. Do not store the module at temperatures below specifications. Cold can cause the liquid crystals to freeze, lose their elasticity or otherwise suffer damage. 100CS...
Page 139 Do not disassemble the LCD module. Disassembly can cause malfunctions. 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. 100CS...
Page 140: Appendix B Board Layout
Appendix B Board Layout System Board Front View Figure B-1 System Board layout (front) 100CS...
Page 141 System Board Back View Figure B-2 System Board layout (back) 100CS...
Page 142 IPS Controller IC36 P-REP Controller PRT/RGB I/F Connector FDD Connector HDD Connector ASYNC I/F Connector P-REP Connector PJ10 Panel Sensor Connector PJ12 Ext. Keyboard Connector PJ13 Keyboard Connector PJ14 LED Connector PJ15 PC Card Slot Connector PJ16 VGA Connector 100CS...
Page 143: Appendix C Pin Assignments
Pin No. Signal Name HD36;100 HD30;100 HD37;100 HD34;100 HD38;100 HD33;100 HD39;100 HD32;100 HD40;100 HD44;100 HD41;100 HD45;100 HD42;100 HD46;100 HD43;100 HD47;100 HD16;100 HD20;100 HD17;100 HD21;100 HD18;100 HD22;100 HD19;100 HD23;100 HD24;100 HD28;100 HD25;100 HD29;100 HD26;100 HD30;100 HD27;100 HD31;100 HD00;100 HD04;100 HD01;100 HD05;100 100CS...
Page 144 HD03;100 HD07;100 HD08;100 HD12;100 HD09;100 HD13;100 HD10;100 HD14;100 HD11;100 HD15;100 HD48;100 HD52;100 HD49;100 HD53;100 HD50;100 HD54;100 HD51;100 HD55;100 HD56;100 HD60;100 HD57;100 HD61;100 HD58;100 HD62;100 HD59;100 HD63;100 CAS1;001 CAS0;001 CAS3;001 CAS2;001 CAS5;001 CAS4;001 CAS7;001 CAS6;001 MWE0;001 ERAS0;001 ERAS2;001 ERAS1;001 ERAS3;001 100CS...
Page 145 Pin No. Signal Name MA00;101 MA01;101 MA02;101 MA03;101 MA04;101 MA05;101 MA07;101 MA06;101 MA09;101 MA08;101 MA11;101 MA10;101 PJ3 Ni-Mh RTC Battery Connector (3-pin) Table C-3 Ni-Mh RTC battery connector pin assignments (3-pin) Pin No. Signal name Pin No. Signal Name (BATTERY+) 100CS...
Page 146 PD4;100 PINT;000 PD5;100 AUTFD;000 PD6;100 PD7;100 PJ5 FDD Connector (26-pin) Table C-5 FDD connector pin assignments (26-pin) Pin No. Signal name Pin No. Signal Name IFSSEL;000 IFRDAT;000 IFWPRO;000 IFTRK0;000 IFWEN;000 IFWEN;000 IFWDAT;000 IFDIRC;000 IFAMON;000 IFHMED;000 IFRADY;000 DISKCHG;000 IFDASL;000 IFINDX;000 100CS...
Page 147 Pin No. Signal name Pin No. Signal Name IRQ14;100 SA02;100 SA01;100 IRQ7;100 IRQ5;100 CSPTON;000 FIORD;000 FIOWR;000 IOCS16;000 IOCRDY;100 HDCS0;000 HDCS1;000 PSPNBP;100 HDDLED;000 SD00;100 SD01;100 SD02;100 SD03;100 SD04;100 SD05;100 SD06;100 SD07;100 SD15;100 SD14;100 SD13;100 SD12;100 SD11;100 SD10;100 SD09;100 SD08;100 RESET;000 100CS...
Page 148 Table C-6 HDD connector pin assignments (90-pin) (continued) Pin No. Signal name Pin No. Signal Name RVCC PJ8 Asynchronous Connector (9-pin) Table C-7 Asynchronous connector pin assignments (9-pin) Pin No. Signal name Pin No. Signal Name DCD1;101 RXD1;001 TXD1;011 DTR1;111 — DSR1;101 RTS1;101 CTS1;101 RI1;101 100CS...
Page 149 TXD1;010 DCD1;100 CTS1;100 SYSCLK;100 IORD;010 IRQ7;110 IRQ9;110 IRQ12;110 ERROR;000 PE;100 ACK;000 PINT;000 STROB;000 PD1;100 PD3;100 PD5;100 ARED;120 AGREEN;120 ABLUE;120 LA21;110 LA22;110 AEN;110 BALE;110 MEWR;010 IOCS16;010 MECS16;010 REFRSH;010 PCSMB;010 PCMB;110 RTS1;110 DSR1;100 RI1;100 RXD1;000 IOWR;010 IRQ4;110 IRQ3;110 IRQ11;110 IRQ5;110 IRQ15;110 100CS...
Page 150 CHSYNC;120 CVSYNC;120 P12V SA00;110 SA08;110 SA02;110 SA04;110 SA10;110 SA06;110 SA15;110 SA18;110 SA13;110 SD07;110 SA16;110 SD05;110 SD03;110 SA09;110 SD11;110 SD00;110 SD13;110 SD15;110 PRDT2;000 MOUSCK;100 MOUSDT;100 LOUTRM LOUTRP P12V SA01;110 SA09;110 SA03;110 SA05;110 SA11;110 SA07;110 SA14;110 SA19;110 SA12;110 SD06;110 SA17;110 SD04;110 100CS...
Page 151 Table C-9 Panel sensor connector pin assignments (2-pin) Pin No. Signal name Pin No. Signal Name PNLOFF C.10 PJ12 Ext. Keyboard Connector (6-pin) Table C-10 Ext. Keyboard connector pin assignments (6-pin) Pin No. Signal name Pin No. Signal Name MOUSE/KB_DATA EXKBDT;100 MOUSE/KB EXKBCK;100 _CLOCKO 100CS...
Page 152 KBOT00;000 IPSY;100 – IPSX;100 IPSY;100 – IPSX;100 C.12 PJ14 LED Connector (12-pin) Table C-12 LED connector pin assignments (12-pin) Pin No. Signal name Pin No. Signal Name PONGRN;110 PONORG;110 DRVLED;110 CAPLED;110 ARWLED;110 NUMLED;110 CHGGRN;100 CHGORG;100 DCGRN;100 DCORG;100 PLED C-10 100CS...
Page 153 — — CADA03;100 CADB03;100 WAITA;000 WAITB;000 CADA04;100 CADB04;100 CRESTA;100 CRESTB;100 CADA05;100 CADB05;100 — — CADA06;100 CADB06;100 CADA25;100 CADB25;100 CADA07;100 CADB07;100 CADA24;100 CADB24;100 CADA12;100 CADB12;100 CADA23;100 CADB23;100 CADA15;100 CADB15;100 CADA22;100 CADB22;100 CADA16;100 CADB16;100 MCVPPA MCVPPB MCVPPA MCVPPB MCVCCA MCVCCB C-11 100CS...
Page 154 — — OEA;000 OEB;000 CE2A;000 CE2B;000 CADA10;100 CADB10;100 CDA15;100 CDB15;100 CE1A;000 CE1B;000 CDA14;100 CDB14;100 CDA07;100 CDB07;100 CDA13;100 CDB13;100 CDA06;100 CDB06;100 CDA12;100 CDB12;100 CDA05;100 CDB05;100 CDA11;100 CDB11;100 CDA04;100 CDB04;100 CDA1;000 CDB1;000 CDA03;100 CDB03;100 — — — — — — C-12 100CS...
Page 155 D23;100 CLKVGA;100 D22;100 D21;100 RESET;000 D20;100 PANEL1;100 PANEL0;100 D19;100 FLTEN;000 D18;100 D17;100 BE0;000 D16;100 BE1;000 MIO;000 D24;100 A06;100 D25;100 D26;100 A06;100 D27;100 A07;100 A08;100 D28;100 A09;100 D29;100 D30;100 A10;100 D31;100 A11;100 A02;100 D08;100 A16;100 D09;100 D10;100 A17;100 D11;100 C-13 100CS...
Page 156 Signal name Pin No. Signal Name A18;100 A19;100 D12;100 A20;100 D13;100 D14;100 A03;100 D15;100 A04;100 A05;100 D04;100 A12;100 D03;100 D02;100 A13;100 D01;100 A14;100 A15;100 D00;100 A23;100 D07;100 D06;100 A24;100 D05;100 A25;100 A22;100 CHSYNC;100 A21;100 CVSYNC;100 ARED;100 AGREEN;100 ABLUE;100 C-14 100CS...
Page 157 Appendix D Keyboard Scan/Character Codes Table D-1 Scan codes (set 1 and set 2) (1/3) Code set 1 Code set 2 Keytop Make Break Make Break Note ‘ ~ 7 & BkSp 29 (42) Caps Lock 100CS...
Page 158 E0 F0 11 E0 F0 70 E0 F0 71 ← E0 F0 6B Home E0 F0 6C E0 F0 69 ↑ E0 F0 75 ↓ E0 F0 72 PgUp E0 F0 7D PgDn E0 F0 7A → E0 F0 74 100CS...
Page 159 Combination with Fn key makes different codes. Fn key does not generate a code by itself. This key corresponds to key No. 42 in 102-key model. Refer to table D-6, scan codes with Ctrl key. Refer to table D-7, scan codes with Alt key. 100CS...
Page 160 E0 F0 7D E0 F0 12 PgDn E0 2A E0 51 E0 D1 E0 AA E0 12 E0 7A E0 F0 7A E0 F0 12 E0 2A E0 4D E0 CD E0 AA E0 12 E0 74 E0 F0 74 E0 F0 12 → 100CS...
Page 161 E0 B7 E0 7C E0 F0 7C Alt* F0 B4 Table D-7 Scan codes with Alt key Code set 1 Code set 2 Shift Make Make Pause Common SD C5 F0 77 Ctrl* *: This key generates only make codes. 100CS...
Page 162 Appendix E Key Layouts United States (US) Keyboard Figure E-1 US keyboard United Kingdom (UK) Keyboard Figure E-2 UK keyboard 100CS...
Page 163 German (GR) Keyboard Figure E-3 GR keyboard French (FR) Keyboard Figure E-4 FR keyboard 100CS...
Page 164 Spanish (SP) Keyboard Figure E-5 SP keyboard Italian (IT) Keyboard Figure E-6 IT keyboard 100CS...
Page 165 Scandinavian (SC) Keyboard Figure E-7 SC keyboard Swiss-German (SL) Keyboard Figure E-8 SL keyboard 100CS...
Page 166: Appendix F Wiring Diagrams
(4) DTR Figure F-2 RS-232-C wraparound connector RS-232-C Direct Cable (9-Pin to 9-Pin) (3) TD (4) DTR (7) RTS (5) GND (2) RD (1) CD (6) DSR (8) CTS (9) RI Figure F-3 RS-232-C direct cable (9-pin to 9-pin) 100CS...
Page 167 RS-232-C Direct Cable (9-Pin to 25-Pin) (1) CD (2) RD (3) TD (4) DTR (22) (5) GND (7) RTS (6) DSR (20) (8) CTS (9) RI Figure F-4 RS-232-C direct cable (9-pin to 25-pin) 100CS...
Page 168 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: K The diagnostics disk for the 100CS. To overwrite BIOS with newer versions Set the system to boot mode. Turn off the power to the computer.
Page 169 When the message is displayed, insert the the diagnostics disk into the FDD. Press Enter to start the BIOS rewrite. When the BIOS rewrite is finished, eject the the diagnostics disk and press the reset switch to restart the system. 100CS...

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