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Toshiba T2100 Series Maintenance Manual
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Toshiba T2100 Series Maintenance Manual

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1.1
Features
The Toshiba T2100/T2105 Series computers are one of the lightest and most advanced
portable computers available. Utilizing advanced technology and high-speed components, the
computer offers excellent display legibility, battery operation and IBM PC/AT compatibility.
References to the T2100, T2100CS, and T2100CT models relate directly to the T2105,
T2105CS, and T2105CT models respectively.
The T2100/T2105 Series computer system units consist of the following features:
Microprocessor
The SL Enhanced Intel 486DX2-50 microprocessor operates at 50 MHz, 3.3 Volts.
Math coprocessor
The math coprocessor is stored in the i486DX2 microprocessor.
Cache memory
Eight (8) KB of cache memory is stored in the i486DX2 microprocessor.
Disk storage
The T2100 has an internal 260 MB HDD.
The T2100CS/T2100CT has an internal 350 MB HDD.
A 3.5-inch Floppy Disk Drive (FDD) supports 2 HD floppy disks (1.44 Mbytes) and
2DD floppy disks (720 Kbytes).
Memory
The T2100/T2100CS comes standard with 4 MB of CMOS Random Access Memory
(RAM), and the T2100CT comes with 8 MB RAM, 3.3 Volts. This includes 640 KB
of conventional memory with 3,264 KB of extended memory for the T2100/T2100CS
and 7,360 KB for the T2100CT, which can be utilized as expanded memory compat-
ible with the Lotus/Intel/Microsoft Expanded Memory Specifications (LIM-EMS).
Monochrome LCD (T2100)
A high-resolution, Liquid Crystal Display (LCD) displays 640x480 pixels with 64-level
gray scale. The T2100 internal display controller supports Video Graphics Adapter
(VGA) functions on the internal display device.
STN color LCD (T2100CS)
A high-resolution, Supertwist Nematic (STN) color Liquid Crystal Display (LCD)
displays 640x480 pixels with 256 colors. The T2100CS internal display controller
supports Video Graphics Array (VGA) and Super VGA (SVGA).
T2100 Series
1-1

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Summary of Contents for Toshiba T2100 Series

  • Page 1 Features The Toshiba T2100/T2105 Series computers are one of the lightest and most advanced portable computers available. Utilizing advanced technology and high-speed components, the computer offers excellent display legibility, battery operation and IBM PC/AT compatibility. References to the T2100, T2100CS, and T2100CT models relate directly to the T2105, T2105CS, and T2105CT models respectively.
  • Page 2 Real Time Clock (RTC) battery. Personal Computer Memory Card International Association (PCMCIA) card slot The T2100 Series computers have two PCMCIA slots which enable you to install an MiNC Toshiba card modem or other industry-standard PCMCIA release 2.0 card.
  • Page 3 Memory module slot The memory slot enables you to install an optional Toshiba memory module. AccuPoint The pointer control stick, located in the center of the keyboard, provides convenient control of the cursor without requiring desk space for a mouse.
  • Page 4 The T2100/T2105 Series Personal Computer is shown in Figure 1-1, and its system configura- tion is illustrated in Figure 1-2. Figure 1-1 T2100/T2105 Series personal computer T2100 Series...
  • Page 5 Figure 1-2 T2100/T2105 Series system unit configuration T2100 Series...

  • Page 6: System Unit Block Diagram

    System Unit Block Diagram Figure 1-3 is a block diagram of the T2100/T2105 Series system unit. Figure 1-3 T2100/T2105 Series system board block diagram T2100 Series...
  • Page 7 One expansion memory slot is available for 4, 8, 16 and 24 Mbyte memory modules. Total maximum memory size is 28 Mbytes for the T2100/T2100CS and 32 Mbytes for the T2100CT (if a 24 Mbyte module card is installed.) 3.3 volt operation No parity bit Access time: 70 ns T2100 Series...
  • Page 8 Data bus transfer (32-bit to 16-bit) control Data latch PCMCIA Controller Gate Array PCMCIA (ToPIC) control Video Controller Gate Array The T2100/T2105 Series internal display controller (C&T65540) (3.3/5 volts operation) controls the internal VGA display and external SVGA compatible display. T2100 Series...
  • Page 9 System interface Hot key control (KBC interface) PS interface BIOS ROM interface NEXUS GA function AccuPoint Controller (U43SC11X) This controller emulates the AccuPoint signals to the PS/2 mouse on the port replicator signal, and sends them to the KBC. T2100 Series...
  • Page 10 2,000 1,000 Formatted 1,311 Number of heads 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) 1-10 T2100 Series...

  • Page 11: Inch Hard Disk Drive

    Track to track Average Maximum stroke Rotation speed (rpm) 4,000 4,200 3,750 Data transfer rate (bps) To/from media 18.9 to 31.6 M 25.0 to 43.75 M 19.0 to 32.0 M Interleave Recording method 1-7 RLL 1-7 RLL 1-7 RLL 1-11 T2100 Series...
  • Page 12 The T2100/T2105 Series 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 F for optional keyboard configurations. Figure 1-6 Keyboard 1-12 T2100 Series...
  • Page 13 Table 1-3 Monochrome LCD specifications Item Specifications Number of dots (dots) 640 x 480 Dot pitch (mm) 0.30 (W) x 0.30 (H) Display area (mm) 196 (W) x 147.6 (H) Contrast 17:1 (minimum) FL current (mA) FL frequency (KHz) 1-13 T2100 Series...
  • Page 14 The FL inverter board supplies high frequency current needed to illuminate the FL. Specifications for the FL inverter board are listed in Table 1-4. Table 1-4 Monochrome FL inverter board specifications Item Specifications Input Voltage (VDC) Power 4.25 Output Voltage (VAC) 1,100 Current (mA) Frequency (KHz) 1-14 T2100 Series...
  • Page 15 Table 1-5 STN color LCD specifications Item Specifications Number of Dots (dots) 640 x 480 Dot pitch (mm) 0.33 x 0.33 Display area (mm) 217.2 (W) x 164.4 (H) Contrast (Typically) 20:1 FL current (mA) FL frequency (KHz) 1-15 T2100 Series...
  • Page 16 The FL inverter board supplies high frequency current to light the LCD’s Fluorescent Lamp. Specifications for the FL inverter are listed in Table 1-6. Table 1-6 STN color FL inverter board specifications Item Specifications Input Voltage (VDC) Power 4.25 Output Voltage (VAC) 1,100 Current (mA) Frequency (KHz) 1-16 T2100 Series...
  • Page 17 Table 1-7 TFT color LCD specifications Item Specifications Number of dots (dots) 640 x 480 Dot pitch (mm) 0.267 (W) x 0.27 (H) Display area (mm) 170.9 (W) x 129.6 (H) Contrast 60:1 (minimum) FL current (mA) FL frequency (KHz) 1-17 T2100 Series...
  • Page 18 The FL inverter board supplies high frequency current to light the LCD’s Fluorescent Lamp. Specifications for the FL inverter are listed in Table 1-8. Table 1-8 TFT FL inverter board specifications Item Specifications Input Voltage (VDC) Power 4.25 Output Voltage (VAC) 1,100 (r.m.s) Current (mA) Frequency (KHz) 1-18 T2100 Series...

  • Page 19: Power Supply

    Table 1-9 Power supply output rating Regulation Maximum Use for Name voltage tolerance current Ripple (mA) (mV) System logic, FDD, HDD, ±5 1,400 Display PCMCIA, Flash ROM P12V ±5 CPU, GA +3.3 ±5 1,100 VRAM, GA, RAM +4.7 ±5 1-19 T2100 Series...
  • Page 20 The battery is being charged. (AC power cord is attached.) Green The battery is fully charged. (AC power cord is attached.) Blinking orange The battery is low when the power is on. No light Under any other conditions, the LED does not light. 1-20 T2100 Series...
  • Page 21 The battery or AC output voltage is abnormal. The charge current is abnormal. When the main battery is fully charged and the AC power cord is attached, the power supply microprocessor automatically changes quick charge to trickle charge. 1-21 T2100 Series...
  • Page 22 Table 1-13 shows the charging time and data preservation period of the RTC battery. Table 1-13 RTC battery charging/data preservation time RTC Battery Time Charging Time With AC power 48 H or main battery Data preservation period (full charge) 1 month 1-22 T2100 Series...
  • Page 23 The following tools are necessary for implementing the troubleshooting procedures: A T2100/T2105 Series Diagnostics Disk A Phillips screwdriver (2 mm) A Toshiba MS-DOS system disk(s) A 2DD or 2HD formatted work disk for floppy disk drive testing A cleaning kit for floppy disk drive troubleshooting...

  • Page 24: Troubleshooting Flowchart

    (F31PRT), then turn the POWER switch on. The computer will override the password function by erasing the current password. 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 25 Figure 2-1 Troubleshooting flowchart (1/2) T2100 Series...
  • Page 26 If an error is detected on the floppy disk test, perform the floppy disk drive troubleshooting procedures in Section 2.5. If an error is detected on the hard disk test, perform the hard disk drive troubleshooting procedures in Section 2.6. T2100 Series...

  • Page 27: Power Supply Troubleshooting

    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: AC IN LED Indicator Check Procedure 2: Battery LED Indicator Check Procedure 3: AC Power Supply (PS) Unit Replacement Check T2100 Series...
  • Page 28 Procedure 1 AC IN LED Indicator Check The T2100 Series computer’s AC Power Supply (PS) unit converts AC power to DC power and contains a charging circuit which charges the computer’s batteries. The AC power cord connects to the AC IN socket connector on the back of the computer. When the AC power cord is connected and the power is turned off, the AC charges the batteries.
  • Page 29 Connect a new AC power cord. If the Battery LED indicator still does not glow, go to Check 5. Check 5 Install a new battery pack. If the Battery LED indicator still does not glow, go to Procedure 3. T2100 Series...
  • Page 30 Refer to Chapter 4 for instructions on how to disassemble the T2100/T2105 Series computer, and then perform the following check. Check 1 Replace the AC PS unit with a new one and restart the system. If the problem still exists, other FRUs may be damaged. T2100 Series...

  • Page 31: System Board Troubleshooting

    Procedure 1: Message Check Procedure 2: Printer Port LED Check on Boot Mode Procedure 3: Printer Port LED Check on Resume Mode Procedure 4: Diagnostic Test Program Execution Check Procedure 5: Replacement Check T2100 Series...
  • Page 32 If an error message is shown on the display, perform Check 1. If there is no error message, go to Procedure 2. If the Toshiba MS-DOS is properly loaded, go to Procedure 3. Check 1 If one of the following error messages is displayed on the screen, press the F1 key as the message instructs.
  • Page 33 (19) PIC #1 ERROR (20) PIC #2 ERROR (21) KBC ERROR (22) HDC ERROR (23) HDD #0 ERROR (24) HDD #1 ERROR (25) NO FDD ERROR (26) FDC ERROR (27) TIMER INTERRUPT ERROR (28) RTC UPDATE ERROR 2-11 T2100 Series...
  • Page 34 IRT test ends. For example, when the printer port LED dis- plays 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. 2-12 T2100 Series...
  • Page 35 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 — 2-13 T2100 Series...
  • Page 36 If error code 50h is displayed, go to the Keyboard Troubleshooting procedures in Section 2.7. Check 3 If error code 55h is displayed, go to the HDD Troubleshooting Procedures in Section 2.6. Check 4 If error code 60h is displayed, go to the FDD Troubleshooting Procedures in Section 2.5. 2-14 T2100 Series...
  • Page 37 Table 2-2 Printer port LED resume mode error status Error status Meaning of status RAM BIOS error The system has optional ROM, or optional card (CGA, MDA). Main memory checksum error Video RAM checksum error Extended memory checksum error 2-15 T2100 Series...
  • Page 38 Chapter 4, Replacement Procedures, and perform the following check. Check 1 Replace the system board with a new one. Refer to Chapter 4 for instructions on how to remove and replace the system board. 2-16 T2100 Series...
  • Page 39 FDD head cleaning is an option available in the Diagnostics Program. Detailed operation is given in Chapter 3, Tests and Diagnostics. After loading Toshiba MS-DOS, 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 3.
  • Page 40 Diagnostic Test Program Execution Check The Floppy Disk Drive Diagnostic Test program is stored on the T2100/T2105 Series computer Diagnostics Disk. After loading Toshiba MS-DOS, run the diagnostic program. Refer to Chapter 3, Tests and Diagnostics, for more information about the diagnostic test procedures.
  • Page 41 Chapter 4, Replacement Procedures. If the FDD is still not functioning properly, perform Check 3. Check 3 Replace the system board with a new one following the steps in Chapter 4, Re- placement Procedures. 2-19 T2100 Series...

  • Page 42: Hard Disk Drive Troubleshooting

    Procedure 1 Partition Check Insert the Toshiba MS-DOS system disk and turn on the computer. Then perform the follow- ing checks as needed. 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 43 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 44 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 T2100/T2105 Series computer Diagnostic Disk, format the HDD with a low level format option.
  • Page 45 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. 2-23 T2100 Series...

  • Page 46: 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, Replacement Procedures, for more information. 2-24 T2100 Series...

  • Page 47: Display Troubleshooting

    The Display Test program is stored on the T2100/T2105 Series computer Diagnostic Disk. This program checks the display controller on the system board. After loading Toshiba MS- DOS, run the Diagnostic Program. Refer to Chapter 3, Tests and Diagnostics, for details.
  • Page 48 Any of these cables may be disconnected. Disassemble the display unit and check the following cable connections. Refer to Chapter 4, Replacement Procedures, for more information about how to disassemble the computer. Figure 2-3 T2100 display connection 2-26 T2100 Series...
  • Page 49 Figure 2-4 T2100CS display connection Figure 2-5 T2100CT 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. 2-27 T2100 Series...
  • Page 50 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. 2-28 T2100 Series...

  • Page 51: The Diagnostic Test

    4. Go to drive C and at the DOS prompt C:\>, type TDIAGS. MS-DOS loads the diagnostic test and displays the following screen: TOSHIBA personal computer xxxx DIAGNOSTICS version x.xx (c) copyright TOSHIBA Corp. 19xx Test the DIAGNOSTICS (Y/N) 5. To execute the program type Y; to exit, type N.
  • Page 52 An RS-232-C wraparound connector for the RS-232-C port wraparound test (ASYNC test) The following sections detail the tests within the Diagnostic Test function of the DIAGNOSTIC MENU. Refer to Sections 3.17 through 3.23 for detailed information on the remaining Service Program Module functions. T2100 Series...

  • Page 53: Executing The Diagnostic Test

    Executing the Diagnostic Test Toshiba MS-DOS is required to run the T2100/T2105 Series computer Diagnostics Program. To start the program, follow these steps: Turn on the computer and allow the computer to boot. Insert the T2100/T2105 Series computer Diagnostics disk in the computer’s internal floppy disk drive.
  • Page 54 To select the DIAGNOSTIC TEST option from the DIAGNOSTICS MENU, set the highlight bar to 1, and press Enter . The following screen will appear: TOSHIBA personal computer T2100 DIAGNOSTICS version X.XX (c) copyright TOSHIBA Corp. 19XX DIAGNOSTIC TEST MENU : 1 - SYSTEM TEST...
  • Page 55 Use the arrow keys to move the cursor to the desired option and press Enter . Table 3-1 in Section 3.3 describes the function of each test on the subtest menu; and Table 3- 3 in Section 3.15 lists the error codes and error status for each error. T2100 Series...

  • Page 56: Subtest Names

    320*200 Graphics display 640*200 Graphics display 640*350/480 Graphics display Display page “H” pattern display/Border color LED/DAC pallet TFT color display (T2100CT only) Sequential read Sequential read/write Random address/data Write specified address Read specified address PRINTER Ripple pattern Function Wraparound T2100 Series...
  • Page 57 Address uniqueness 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 T2100 Series...

  • Page 58: System Test

    Notch signal = 2HD Table 3-2 lists the hardware bit status for each bit tested. Pressing Enter returns you to the Subtest Menu. Table 3-2 Hardware bit status H/W status CPU clock speed 50 MHz 25 MHz Media type T2100 Series...
  • Page 59 S key. When the read information is higher, the display is unchanged. ROM-BIOS = V1.00 : OK V1.10 ROM (BOOT) = V1.00 : OK V1.00 KBC Version = V1.26 : NG V1.00 PS Micom Version = V1.35 : OK V1.35 Reference data Current data T2100 Series...

  • Page 60: Memory Test

    CONFIG.SYS file. This subtest writes constant data and address data to extended memory (maximum address 100000h), then reads new data and compares the results with the original data. The constant data is FFh, AAh, 55h, and 00h. 3-10 T2100 Series...
  • Page 61 (‘7000’:’Program’ size to ‘7000’:=7FFF’ (32 KB)) to check the hit-miss ratio (on/off status). One test takes 3 seconds. Number of miss hit < Number of hit → OK Number of miss hit ≥ Number of hit → Fail 3-11 T2100 Series...

  • Page 62: 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 3-12 T2100 Series...
  • Page 63 If this test does not detect an error, the program returns to the subtest menu. If it detects an error, the following message appears: KBD - MOUSE INTERFACE ERROR [[ HALT OPERATION ]] 1: Test end 2: Continue 3: Retry 3-13 T2100 Series...
  • Page 64 STATUS:0008h X-RATE:0000h Y-RATE:0000h < BUTTON > << PRESS BUTTON1 + BUTTON2 THEN END >> There are eight directions of arrow marks as shown below. When the button is pressed, the image alternates as shown below. < > 3-14 T2100 Series...

  • Page 65: 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 3-15 T2100 Series...
  • Page 66 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 . 3-16 T2100 Series...
  • Page 67 320*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 . 3-17 T2100 Series...
  • Page 68 640*XXX GRAPHICS DISPLAY EVEN DOTS ODD DOTS ALL DOTS DRIVEN DRIVEN DRIVEN PRESS [Enter] KEY Pressing Enter changes the size of the displayed image. To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break. 3-18 T2100 Series...
  • Page 69 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. 3-19 T2100 Series...
  • Page 70 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 ‘5F,’ and displays 256 colors. Press Enter to change the display. Press Ctrl + Break to exit. 3-20 T2100 Series...

  • Page 71: Floppy Disk Test

    Select the number of the subtest you want to execute and press Enter . The following message will appear during the floppy disk test. FLOPPY DISK XXXXXXX T2100 DIAGNOSTIC TEST VX.XX [Ctrl]+[Break] ; test end [Ctrl]+[C] ; key stop 3-21 T2100 Series...
  • Page 72 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. 3-22 T2100 Series...

  • Page 73: Printer Test

    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. !”#$%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmno !”#$%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnop “#$%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopq #$%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqr $%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrs %&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrst &’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstu ‘()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuv ()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuvw )*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuvwx *+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuvwxy 3-23 T2100 Series...
  • Page 74 The printer wraparound connector (34M741986G01) wiring diagram is illustrated in Appendix G. This subtest checks the output and bidirectional modes of the data control and status lines through the printer wraparound connector. 3-24 T2100 Series...

  • Page 75: Async Test

    NOTE: To execute this subtest, an RS-232-C cable (9-pin to 9-pin) must be connected to boards 1 and 2. The RS-232-C direct cable wiring diagram is illustrated in Appendix G. This subtest checks the data send/receive function through the RS-232-C direct cable. 3-25 T2100 Series...
  • Page 76 This subtest is used with subtest 03 described above. The 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. 3-26 T2100 Series...

  • Page 77: Hard Disk Test

    CAUTION: The contents of the hard disk will be erased when subtest 02, 03, 04, 05, 06, 08, 09, or 10 is executed. Before running the test, transfer the contents of the hard disk to a backup system. This can be done with the BACKUP command in the Toshiba Companion Utility.
  • Page 78 • 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. The data is then read and compared to the original data. 3-28 T2100 Series...
  • Page 79 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. 3-29 T2100 Series...

  • Page 80: 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 then reads and compares this data with the original data. To exit, press Ctrl + Break . 3-30 T2100 Series...
  • Page 81 Current date : 12-31-1992 Current time : 23:59:58 Pressing Enter displays the following: Current date : 01-01-1993 Current time : 00:00:00 PRESS [Enter] KEY TO EXIT TEST Press Ctrl + Break to exit. 3-31 T2100 Series...
  • Page 82 The NDP test contains one subtest that tests the T2100/ T2105 Series computer’s math coprocessor functions. Subtest 01 This test checks the following functions of NDP: Control word Status word Addition Multiplication Press Ctrl + Break to exit. 3-32 T2100 Series...

  • Page 83: Expansion Test

    Contents 00001 Address line 00001 REG#, CE#1, CE#2 nn=A0, 90, 80, 00 00002 Data line ww=write data, rr=read data 00003 –– –– Speaker line 00004 40, 80 Wait line (40<xx<80) 00005 Other lines (BSY#, BVD1) nn=21, 00 3-33 T2100 Series...

  • Page 84: Error Codes And Error Status Names

    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 3-34 T2100 Series...
  • Page 85 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 3-35 T2100 Series...

  • Page 86: 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 an error. 3-36 T2100 Series...
  • Page 87 “1” Illegal command error or a drive status error occurred. 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. 3-37 T2100 Series...

  • Page 88: Hard Disk Format

    CAUTION: 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 backup system. This can be done using the BACKUP command in the Toshiba Companion Utility. See the Toshiba MS-DOS manual for details.
  • Page 89 3.17.2 Operations CAUTION: After the HDD has been formatted, execute the Toshiba MS-DOS FDISK command to partition the HDD. Next, execute the Toshiba MS-DOS FORMAT command. Refer to the Toshiba MS-DOS manual for more information about using these commands.
  • Page 90 After entering the bad tracks, press Enter to execute the format. All track format All tracks are formatted as good tracks except those registered as bad tracks in item (d) above, or those identified as bad tracks in track verification described in item (f) below. 3-40 T2100 Series...
  • Page 91 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. 3-41 T2100 Series...

  • Page 92: 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. 3-42 T2100 Series...

  • Page 93: 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]] 3-43 T2100 Series...
  • Page 94 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. 3-44 T2100 Series...

  • Page 95: Running Test

    Serial #A wrap around test (Y/N) ? Selecting Y (yes) executes the ASYNC wraparound test. An RS-232-C wrap- around connector must be connected to the serial port on the back of the T2100/ T2105 Series computer to properly execute this test. 3-45 T2100 Series...
  • Page 96 Select Y or N 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.] This program is executed continuously. To terminate the program, press Ctrl + Break. 3-46 T2100 Series...

  • Page 97: Floppy Disk Drive Utilities

    FDD and HDD. FORMAT NOTE: This program is only for testing a floppy disk drive. The option is differ- ent 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...
  • Page 98 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. 3-48 T2100 Series...
  • Page 99 —— Max. address —— [Track ] = 0079 [ Head ] = 01 [Sector] = 09 Track number ?? Set the track number you want to dump. The system will access the disk and dump a list. 3-49 T2100 Series...

  • Page 100: System Configuration

    * - 1 HARD DISK DRIVE(S) * - 1 PRINTER ADAPTER * - XXXXXKB EXTENDED MEMORY * - 1 MATH CO-PROCESSOR * - CPU CLOCK = 50MH Press [Enter] Key Press Enter to return to the DIAGNOSTIC MENU. 3-50 T2100 Series...
  • Page 101 Battery Battery Save Modes Battery Level Hard Disk I/O Ports Serial port Parallel Port Power on Password Others Power-up Modes CPU Cache Processing Speed Speaker Volume Panel Power On/Off Alarm Power On Keyboard Pointing Devices Boot Priority 3-51 T2100 Series...

  • Page 102: Accessing The Setup Program

    Press ← and → to move between the two columns. Press ↑ and ↓ to move between items in a column. Press either the space bar or BkSp to change the value. Accepting Changes and Exiting the SYSTEM SETUP Window Press End to accept the changes you made. 3-52 T2100 Series...
  • Page 103 The SYSTEM SETUP screen is divided into functionally-related groups. This section describes each group and its options. NOTE: The functions described in this section can also be changed using Toshiba’s Hardware Setup program in Windows. You can access this program through the Toshiba Utilities group in the Windows Program Manager.
  • Page 104 Interlace Selects non-interlace mode. Non-interlace LCD Display Colors (T2100CS/T2100CT only) Use this option to select a color palette for the T2100CT’s internal TFT or the T2100CS’s STN display when the LCD Display mode is set to “Color.” 3-54 T2100 Series...
  • Page 105 CRT for simultaneous display. NOTE: When starting the computer in Resume mode, the last configuration is remembered. If data does not appear on the display you are using after starting in Resume mode, press Fn + F5 . 3-55 T2100 Series...
  • Page 106 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, System Auto Off is not displayed. 3-56 T2100 Series...
  • Page 107 Automatically turns off power to the hard disk xx Min. 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. 3-57 T2100 Series...
  • Page 108 This item displays the mode of the HDD for information only. It cannot be changed. (Normal) Enhanced IDE To see the capacity of the hard disk, use the CHKDSK command. See your DOS documentation for details on using CHKDSK. 3-58 T2100 Series...
  • Page 109 The options for this setting are Output (default) and Bi-Directional. Option Mode Output For most printers, the port should be set to Output. With some other parallel devices, the setting should be Bi-Directional. 3-59 T2100 Series...
  • Page 110 This feature enables or disables the CPU cache. Enables the CPU cache. (Default) Enabled Disables the CPU cache. Disabled Processing Speed This feature changes the CPU processing speed. The CPU operates at 50 MHz. (Default) High The CPU operates at half speed. 3-60 T2100 Series...
  • Page 111 Disabled Panel Power On/Off This option allows you to automatically turn your T2100 series computer on or off by opening or closing the display panel. If this feature is enabled when the computer is in Resume mode, the system is automatically powered off when the display panel is closed and powered on when the panel is opened.
  • Page 112 Int. Keyboard key layout Normal Ext. Keyboard “Fn” key equivalent Disabled Int. Keyboard key layout This option lets you select the arrangement of the Caps Lock, Ctrl and Alt keys according to the following illustrations: Alternative Normal (default) 3-62 T2100 Series...
  • Page 113 The computer looks for bootable files first on the HDD and next on the diskette drive. You can reverse the order by holding down the F10 key while the computer is booting. This procedure does not affect the setting. 3-63 T2100 Series...
  • Page 114 3-64 T2100 Series...
  • Page 115 T2100 Fluorescent Lamp (FL) Inverter Board T2100 Liquid Crystal Display (LCD) Module T2100 FL T2100CS Display Mask T2100CS FL Inverter Board T2100CS LCD Module T2100CS FL T2100CT Display Mask T2100CT FL Inverter Board T2100CT LCD Module T2100CT FL T2100 Series...
  • Page 116 When reassembling the computer, make sure you use the correct screws to secure the various pieces in place. Screw sizes are listed in the corresponding figures. The T2100 Series computers contain many sharp edges and corners, so be careful not to injure yourself.
  • Page 117 Assembly Procedures After you have disassembled the T2100 Series computer and fixed or repaired the problem that was causing the computer to operate abnormally, you will need to reassemble it.
  • Page 118 Proper use of these devices will increase the success rate of your repairs and lower the cost for damaged or destroyed parts. The following equipment is necessary to disassemble and reassemble the T2100 Series computers: One M2 Phillips screwdriver to remove and replace screws.

  • Page 119: The Battery Pack

    Turn the computer's power off. Remove all cables connected to the computer and open the display panel. Figure 4-1 Opening the T2100 Series computer Push up on the two latches on the front of the palm rest until you feel them click.
  • Page 120 Be careful not to pull too hard or try to lift the battery pack more than about a finger’s width. Grasp the battery pack and lift it out completely. Figure 4-3 Removing the battery pack T2100 Series...
  • Page 121 Installing the Battery Pack CAUTION: There is danger of explosion if the battery is incorrectly replaced. Use only the same or equivalent battery recommended by Toshiba. Return spent batteries to your dealer for environmentally safe disposal. To install a battery pack, follow the steps below and refer to Figures 4-3 and 4-2.

  • Page 122: Optional Memory Module

    Slide your fingernail or a thin object under the notch on the cover and rotate the cover up to remove it. Two latches hold the cover in place on the side away from the screws. Figure 4-4 Removing the memory module socket cover T2100 Series...
  • Page 123 The side of the module away from the connectors will spring up (Figure 4-5). Figure 4-5 Removing the memory module CAUTION: DO NOT touch the connecting edge of the memory module. Debris or oil in or on the connector may cause memory access problems. T2100 Series...
  • Page 124 Fit the socket cover’s latches into place and seat the cover (Figure 4-5). Secure the two M2x4 silver screws (Figure 4-4). Install the battery back as described in Section 4.2. The T2100/T2105 Series computer automatically configures all additional memory as extended memory. 4-10 T2100 Series...
  • Page 125 Remove the battery pack as described in Section 4.2. Pull open the slot cover (Figure 4-7). Figure 4-7 Opening the PCMCIA slot’s cover Press the eject button to pop the card out slightly and remove it (Figure 4-8). Figure 4-8 Removing the PCMCIA card 4-11 T2100 Series...
  • Page 126 When the card is almost fully seated, you will feel some resistance. Press gently to assure a firm connection, but do not force the card into position. Close the slot cover. Figure 4-9 Installing an optional PCMCIA card Install the battery pack as described in Section 4.2. 4-12 T2100 Series...
  • Page 127 Lift the palm rest and release the five latches on the keyboard brace. Lift the front of the keyboard and remove the brace. Be careful not to damage the AccuPoint cable. Figure 4-10 Removing the keyboard base 4-13 T2100 Series...
  • Page 128 Insert the keyboard brace between the AccuPoint cable and under side of the keyboard (Figure 4-10). Secure the five latches on the keyboard base (Figure 4-10). Install the optional PCMCIA card, optional memory module and battery pack as described in Sections 4.4, 4.3 and 4.2. 4-14 T2100 Series...

  • Page 129: Hard Disk Drive

    Sections 4.2 through 4.5. Turn the computer over and remove four pan-head M3x6 screws on the bottom (Figure 4-12). Figure 4-12 Removing the HDD screws Turn the computer back over and open the display. 4-15 T2100 Series...
  • Page 130 Remove the HDD cover, palm rest cover-support, HDD bracket, and battery holder assembly (Figure 4-13). Carefully slide the HDD to the left to disconnect it from the HDD connector (Figure 4-13). Figure 4-13 Removing the HDD Slide the HDD out of the system unit. 4-16 T2100 Series...
  • Page 131 Turn the computer over and secure the bottom cover with the four pan-head M3x6 screws (Figure 4-12). Install the keyboard, optional memory module, optional PCMCIA card and battery pack as described in Sections 4.5 back through 4.2. 4-17 T2100 Series...
  • Page 132 Remove the battery pack, optional PCMCIA card, optional memory module, keyboard and hard disk drive as described in Sections 4.2 through 4.6. Turn the computer over and remove three M2.5x8 silver screws securing the cover (Figure 4-14). Figure 4-14 Removing the top cover screws 4-18 T2100 Series...
  • Page 133 Lift the battery's mylar insulator from right to left, remove the four flat-head M2.5x6 screws on the battery pack frame, and lift out the frame (Figure 4-15). Remove two M2.5x8 silver screws on the top cover (Figure 4-15). Figure 4-15 Removing the battery pack frame 4-19 T2100 Series...
  • Page 134 Lift the top cover with display assembly straight up out of the bottom unit. Figure 4-16 Removing the top cover & display assembly Remove one M2.5x4 screw holding the speaker assembly in place and lift out the assembly. Remove the speaker from the speaker holder. 4-20 T2100 Series...
  • Page 135 Secure the three M2.5x8 silver screws on the bottom of the computer (Figure 4- 14). Install the hard disk drive, keyboard, optional memory module, optional PCMCIA card and battery pack as described in Sections 4.6 back through 4.2. 4-21 T2100 Series...

  • Page 136: Floppy Disk Drive

    Disconnect the FDD cable from PJ4 on the system board, then remove three M2.5x6 screws on the FDD bracket (Figure 4-17). Remove the FDD front cover and lift out the FDD from the system unit (Figure 4- 17). Figure 4-17 Removing the FDD with bracket 4-22 T2100 Series...
  • Page 137 Install the FDD front cover on the bottom cover (Figure 4-17). Install the top cover and display assembly, hard disk drive, keyboard, optional memory module, optional PCMCIA card and battery pack as described in Sections 4.7 back through 4.2. 4-23 T2100 Series...
  • Page 138 Press in the power switch to free the power switch frame and remove the LED cover/power switch frame from the system unit. Disconnect the AC power cable from PJ501 and remove the AC PS unit with AC power socket from the system unit. Figure 4-19 Removing the AC PS unit 4-24 T2100 Series...
  • Page 139 Secure three M2.5x8 silver screws on the LED cover/power switch frame. Secure one M2.5x10 screw on the AC PS unit. Install the top cover, display assembly, hard disk drive, keyboard, optional memory module, optional PCMCIA card and battery pack as described in Sections 4.7 back through 4.2. 4-25 T2100 Series...
  • Page 140 Disconnect the RTC battery cable from PJ2 and lift out the RTC battery. Disconnect the back up battery cable from PJ503 and lift out the back up battery. Figure 4-20 Removing the system board 4-26 T2100 Series...
  • Page 141 WARNING: If you replace the backup battery and/or RTC battery, be sure to use only the same model battery or an equivalent battery recommended by Toshiba. Installation of the wrong battery can cause the battery to explode. To install the system board and backup/RTC batteries, follow the steps below and refer to Figure 4-20.

  • Page 142: Display Mask

    Continue unlatching the mask along the sides (four latches on each side) and at the bottom (three latches). There is also one latch at the larger display support. Figure 4-21 Removing the display mask 4-28 T2100 Series...
  • Page 143 Attach the two rubber seals at each display hinge to cover the screws. Install the LCD cushions in the upper corners of the mask. Install the optional PCMCIA card, optional memory card and battery pack as described in Sections 4.4, 4.3 and 4.2. 4-29 T2100 Series...
  • Page 144 FL inverter cable from CN1 and CN2 on the FL inverter board. Remove the M2.5x6 screw securing the volume board. Disconnect the volume cable from the connector on the volume board. Figure 4-22 Removing the FL inverter and volume board 4-30 T2100 Series...
  • Page 145 Secure the FL inverter board with two M2.5x6 screws. Install the display mask, optional PCMCIA card, optional memory card and battery pack as described in Sections 4.11, 4.4, 4.3 and 4.2. 4-31 T2100 Series...
  • Page 146 Remove the four M2.5x6 screws on the LCD module. Note the location of the ground cable. Rotate the LCD module out of the cover from right to left. Disconnect the two display cables from CN1 and CN2 on the LCD module. Figure 4-23 Removing the T2100 LCD module 4-32 T2100 Series...
  • Page 147 Secure the LCD module with four M2.5x6 screws. Install the FL inverter board, display mask, optional PCMCIA card, optional memory card and battery pack as described in Sections 4.12, 4.11, 4.4, 4.3 and 4.2. 4-33 T2100 Series...
  • Page 148 FL inverter, and LCD module as described in Sections 4.2, 4.3, 4.4, 4.11, 4.12, and 4.13. Peel the tape off the lamp cover, then remove three M1.5x3 brass flat-head screws securing the cover and take off the FL cover. Remove the FL. Figure 4-24 Removing the FL 4-34 T2100 Series...
  • Page 149 Secure the FL cable to the LCD panel with tape as indicated in Figure 4-24. Install the LCD module, FL inverter, display mask, optional PCMCIA card, op- tional memory card and battery pack as described in Sections 4.13, 4.12, 4.11, 4.4, 4.3 and 4.2. 4-35 T2100 Series...
  • Page 150 Carefully rotate the LCD module from left to right out of the display cover and disconnect the display cable from the LCD module. Figure 4-25 Removing the LCD module CAUTION: Metal edges on the LCD module are sharp, so be careful not to cut yourself. 4-36 T2100 Series...
  • Page 151 Secure four M2.5x6 screws with ground cables to the LCD module. Install the FL inverter board, display mask, optional memory module, optional PCMCIA card and battery pack as described in Sections 4.12, 4.11, 4.4, 4.3 and 4.2. 4-37 T2100 Series...
  • Page 152 FL inverter board and LCD module as described in Sections 4.2, 4.3, 4.4, 4.11, 4.12, and 4.15. Release 11 latches securing the LCD module to its frame (Figure 4-26). Turn the LCD module over and remove four screws (Figure 4-26). Figure 4-26 Unbending the color LCD module latches 4-38 T2100 Series...
  • Page 153 Figure 4-27 Removing the SEG board Remove the two ground plates located at each end of the SEG board (Figure 4- 27). Slip your finger under the P chassis and release the five latches securing it to the B/L holder (Figure 4-27). 4-39 T2100 Series...
  • Page 154 Figure 4-28 Removing the B/L holder Lift the end of the reflector sheet covering the FL and lift out the FL. Be careful not to pull or apply tension to the reflector sheet. Figure 4-29 Lifting out the FL 4-40 T2100 Series...
  • Page 155 Turn the module over and secure the 11 latches on the frame. Install the LCD module, FL inverter board, display mask, optional PCMCIA card, optional memory module, and battery pack as described in Sections 4.15, 4.12, 4.11, 4.4, 4.3, and 4.2. 4-41 T2100 Series...
  • Page 156 Remove the two M2.5x6 screws securing the FL inverter board. Rotate the FL inverter board out of its seating and disconnect the FL inverter cable from CN1 and the FL cable from CN2 on the FL inverter board. Figure 4-30 Disconnecting the FL inverter board 4-42 T2100 Series...
  • Page 157 Secure the FL inverter board with the two M2.5x6 screws. Install the display mask, optional memory module, optional PCMCIA card, and battery pack as described in Sections 4.11, 4.4, 4.3 and 4.2. 4-43 T2100 Series...
  • Page 158 NOTE: Do not remove the remaining screws on the LCD module. These screws secure the metal cover to the LCD panel. Figure 4-31 Removing the T2100CT LCD module and display cable board 4-44 T2100 Series...
  • Page 159 Secure the panel with four M2.5x6 screws. Be sure to secure the ground cable as indicated in Figure 4-31. Install the FL inverter board, display mask, optional memory module, optional PCMCIA card and battery pack as described in Sections 4.17, 4.11, 4.4, 4.3 and 4.2. 4-45 T2100 Series...
  • Page 160 CAUTION: When you remove the LCD frame, eight hybrid ICs will be exposed at the top/bottom of the LCD module. Use extreme care not to touch or jar these ICs. Figure 4-32 Removing the T2100CT LCD module screws 4-46 T2100 Series...
  • Page 161 Push the four latches to remove the FL cover and remove it (Figure 4-33). Figure 4-33 Removing the FL cover Hold up the plastic cover shielding the fluorescent lamp (FL) and lift the FL cable to remove the FL (Figure 4-34). Figure 4-34 Removing the FL 4-47 T2100 Series...
  • Page 162 Secure the module to the frame with the four M2.1x6 screws (Figure 4-32). Replace the LCD module, FL inverter board, display mask, optional memory card, optional PCMCIA card and battery pack as described in Sections 4.18, 4.17, 4.11, 4.4, 4.3 and 4.2. 4-48 T2100 Series...

  • Page 163: Appendix A Handling The Lcd Module

    Appendix A Handling the LCD Module Precautions for handling the T2100 Series LCD modules The computer's LCD module can be easily damaged during assembly or disassembly. Therefore, please observe the following precautions when handling the LCD module. When installing the LCD module in the LCD cover, be sure to seat it so that it is properly aligned and maximum visibility of the display is maintained.
  • Page 164 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. T2100 Series...
  • Page 165 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. T2100 Series...
  • Page 166 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. T2100 Series...
  • Page 167 Appendix B Board Layout FHVSY* System Board Figure B-1 FHVSY* system board (front) T2100 Series...
  • Page 168 Figure B-2 FHVSY* system board (back) T2100 Series...
  • Page 169 PCMCIA Slot Connector PJ17 LCD Connector PJ18 RGB Connector PJ19 LCD Connector CD-ROM Interface Connector PJ12 SYSTEM SPEAKER Connector PJ15 SOUND Interface Connector PJ501 AC PS Connector PJ502 Main Battery Connector 2A Fuse (Slow Blow) 2A Fuse F501 3.15A Fuse T2100 Series...
  • Page 170 IC30 Display Controller Gate Array IC31 VRAM IC32 VRAM IC510 Power Supply Microprocessor IC100 SIMM Connector RTC Battery Connector External FDD Connector PJ503 Sub Battery Connector Clock Generator IC20 ASYNC Controller 2A Fuse (Slow Blow) F502 5A Fuse T2100 Series...

  • Page 171: Pin Assignments

    PJ3 PRT Connector (25-pin) Table C-2 PRT connector pin assignments (25-pin) Signal Signal STROB;000 PD00;100 PD01;100 PD02;100 PD03;100 PD04;100 PD05;100 PD06;100 PD07;100 ACK;000 BUSY;100 PE;100 SELCT;100 AUTFD;000 ERROR;000 PINT;000 SLIN;000 – – – – – – – – T2100 Series...
  • Page 172 PJ6 External FDD Connector (26-pin) Table C-4 External FDD connector pin assignments (26-pin) Signal Signal – IFINDX;000 – IFDASL;000 – DSKCHG;000 – IFRADY;000 IFHMED;000 IFAMON;000 IFLOWD;000 IFDIRC;000 SLFDLD;100 IFSTEP;000 – IFWDAT;000 – IFWEN;000 – IFTRK0;000 – IFWPRO;000 – IFRDAT;000 – IFSSEL;000 T2100 Series...
  • Page 173 HDCS0;000 HDCS1;000 HDDLED;000 – – – – – PJ9 ASYNC Interface Connector (15-pin) Table C-6 ASYNC interface connector pin assignments (15-pin) Signal Signal DTR1;110 TXD1;010 RTS1;110 DCD;100 DSR1;100 RXD1;000 CTS1;100 RI1;100 – – – EXKBDT;100 EXKBCK – – T2100 Series...
  • Page 174 IFRADY;000 IFINDX;000 IFTRK0;000 IFWPRO;000 IFRDAT;000 IFDASL;000 IFHMED;000 – ERROR;000 SLIN;000 – MOUSCK;100 EXKBCK;100 – SD01;100 SD03;100 SD05;100 SD07;100 JOYW;000 – CHSYNC;110 – ARED;100 – – – DCIN DCIN – – – DSR1;100 DCD1;100 CTS1;100 RXD1;000 – STROB;000 PD0;100 T2100 Series...
  • Page 175 – LOUTLP LOUTLM LINLM LINLP PJ11 Panel Sensor Connector (2-pin) Table C-8 Panel sensor connector pin assignments (2-pin) Signal Signal PNLOFF;000 – PJ12 System Speaker Connector (2-pin) Table C-9 System speaker connector pin assignments (2-pin) Signal Signal SPKVOL;100 T2100 Series...
  • Page 176 C.11 PJ14 KB Connector (25-pin) Table C-11 KB connector pin assignments (25-pin) Signal Signal KBRT6;100 KBRT2;100 KBRT5;100 KBRT0;100 KBRT1;100 KBRT3;100 KBRT7;100 KBRT4;100 KBOT02;000 KBOT09;000 KBOT11;000 KBOT03;000 KBOT04;000 KBOT05;000 KBOT06;000 KBOT07;000 KBOT08;000 KBOT01;000 KBOT00;000 IPSY;100 – IPSX;100 IPSY;100 – IPSX;100 T2100 Series...
  • Page 177 BRIGHT;100 – – – – – – C.13 PJ18 RGB I/F Connector (15-pin) Table C-13 RGB I/F connector pin assignments (15-pin) Signal Signal ARED;100 AGREEN;100 ABLUE;100 – – – – – – – – – CHSYNC;110 CVSYNC;110 – T2100 Series...
  • Page 178 MD15;101 RAS6;001 MD16;101 MD17;101 – CAS0;001 CAS2;001 CAS3;001 CAS1;001 RAS2;001 RAS3;001 – MWE2;001 – MD18;101 MD19;101 MD20;101 MD21;101 MD22;101 MD23;101 – MD24;101 MD25;101 MD26;101 MD28;101 MD27;101 – MD29;101 MD30;101 MD31;101 RAS7;001 – – – – – – – T2100 Series...
  • Page 179 Table C-18 ASYNC connector pin assignments (9-pin) Signal Signal DCD1;101 RXD1;001 TXD1;011 DTR1;111 – DSR1;101 RTS1;111 CTS1;101 RI1;101 C.19 PJ703 PS/2 KB Connector (6-pin) Table C-19 PS/2 KB connector pin assignments (6-pin) Signal Signal EXKBDT;102 – – – EXKBCK;102 – T2100 Series...
  • Page 180 C-10 T2100 Series...
  • Page 181 Appendix D USA Display Codes Table D-1 USA display codes T2100 Series...
  • Page 182 T2100 Series...
  • Page 183 Appendix E Keyboard Scan/Character Codes Table E-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 T2100 Series...
  • Page 184 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 T2100 Series...
  • Page 185 4* Fn key does not generate a code by itself. 5* This key corresponds to key No. 45 and No. 62 in 102-key model. 6* Refer to table E-6, Scan Code for Cap No. 124. 7* Refer to table E-7, Scan Code for Cap No. 126. T2100 Series...
  • Page 186 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 T2100 Series...
  • Page 187 E0 2A E0 37 E0 B7 E0 AA E0 12 E0 7C E0 F0 7C E0 F0 12 Ctrl+ E0 37 E0 B7 E0 7C E0 F0 7C Shift+ E0 37 E0 B7 E0 7C E0 F0 7C Alt+ F0 B4 T2100 Series...
  • Page 188 Table E-7 Scan Code for Cap No. 126 Code set 1 Code set 2 Shift Make Make Pause Common SD C5 F0 77 Ctrl+ NOTE: This key generates only make codes. T2100 Series...
  • Page 189 Appendix F Key Layout United States (US) Keyboard Figure F-1 US keyboard United Kingdom (UK) Keyboard Figure F-2 UK keyboard T2100 Series...
  • Page 190 German (GR) Keyboard Figure F-3 GR keyboard French (FR) Keyboard Figure F-4 FR keyboard T2100 Series...
  • Page 191 Spanish (SP) Keyboard Figure F-5 SP keyboard Italian (IT) Keyboard Figure F-6 IT keyboard T2100 Series...
  • Page 192 Scandinavian (SC) Keyboard Figure F-7 SC keyboard Swiss-German (SL) Keyboard Figure F-8 SL keyboard T2100 Series...
  • Page 193 (4) DTR Figure G-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 G-3 RS-232-C direct cable (9-pin to 9-pin) T2100 Series...
  • Page 194 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 G-4 RS-232-C direct cable (9-pin to 25-pin) T2100 Series...
  • Page 195 (F31PRT), then turn the POWER switch on. The computer will override the password function by erasing the current password. If the procedure above does not override the password, contact your Toshiba representative for further actions. For security reasons, the Password Deletion Disk will not be distributed...
  • Page 196 T2100 Series...
  • Page 197 Appendix I BIOS Rewrite Procedures This Appendix explains how to rewrite the system BIOS program when updating the BIOS on the T2100 Series computer. Tools To rewrite the BIOS, the following tool is required: BIOS rewrite disk for the T2100/T2100CS/T2100CT Rewriting the BIOS Set the system to Boot Mode.
  • Page 198 T2100 Series...

This manual is also suitable for:

T2105 series

Table of Contents