Page 1 Features The Toshiba 700 Series uses extensive Large Scale Integration (LSI) and Complementary Metal-Oxide Semiconductor (CMOS) technology to provide minimum size and weight, low ® power usage and high reliability. The computer is optimized for Windows 95 and supports plug and play technology. The computer incorporates the following features and benefits: Microprocessor ®...
Page 2 Batteries Three different batteries are used in the 700 Series computers: a Lithium-Ion main battery, a backup battery (for memory backup), and an RTC battery (for the Real Time Clock). Expansion memory slot An optional 8, 16, or 32 MB memory module can be installed in the memory slot. Parallel port This port can be used to connect a Centronics-compatible printer or other parallel device.
Page 3 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. Infrared port The 700 Series incorporates an IrDA1.0 (115.2Kbps supported) standard infrared transmitter and receiver. Sound System A Sound Blaster compatible sound system provides the capability to record...
Page 4 Figure 1-2 700 Series system unit configuration 700 Series...
Page 5: 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 700 Series...
Page 6 The system board is composed of the following major components: One Intel Pentium 120MHz 64-bit microprocessor with VRT. It operates at 120 MHz and 2.9 volts. Standard RAM 8 MB, four 1Mx16-bit chips (700CS) 16 MB, eight 1Mx16-bit chips (700CT) 3.3 volt operation No parity bit Access time 10 ns...
Page 7 ISA bridge Gate Array This gate array has the following components: - Two DMACs 82C37 equivalent - Two PICs 82C59 equivalent - One PIT 82C54 equivalent - SMI port control - RTC control - Flash memory control - Internal ISA bus bridge - High speed ISA bus control - Power management control - Suspend/Resume control...
Page 8 Keyboard Controller (KBC) One M38802M4 chip is used. The KBC, which includes the keyboard scan and keyboard interface controllers, controls the internal keyboard, external keyboard, and PS/2 mouse. Real Time Clock (RTC) A T9934 chip with 128 bytes of memory is used. Fourteen (14) bytes are used for the calendar and clock, and the remaining 114 are used for the system configuration data.
Page 9 3.5-inch Floppy Disk Drive The 3.5-inch FDD is a thin, high-performance, reliable drive that supports 720-KB (format- ted) 2DD and 1.44-MB (formatted) 2HD disks. The FDD is shown in Figure 1-4, and its specifications are listed in Table 1-1. Figure 1-4 3.5-inch FDD Table 1-1 3.5-inch FDD specifications Item 2-MB mode...
Page 10 2.5-inch Hard Disk Drive The HDD is a random access, nonvolatile storage device. It has a non-removable 2.5-inch magnetic disk and mini-winchester type magnetic heads. The 700 Series supports a 1.2 GB HDD. The HDD is shown in Figure 1-5, and its specifications are listed in Table 1-2. Figure 1-5 2.5-inch HDD Table 1-2 2.5-inch HDD specifications Item...
Page 11 Keyboard The 82-key (USA) or 84-key (European) keyboard is mounted on the system unit. The keyboard is connected to the keyboard controller on the system board through a 25-pin flat cable. The 700 Series pointer control stick, located in the center of the keyboard, provides convenient control of the cursor without requiring desk space for a mouse.
Page 12 DSTN Color LCD (700CS) The DSTN Color Liquid Crystal Display (LCD) contains an LCD module, a Fluorescent Lamp (FL), and an FL inverter board. 1.6.1 DSTN Color LCD Module The 700CS DSTN color LCD is backlit and supports 800 x 600 pixels with a built-in display controller.
Page 13 1.6.2 Fluorescent Lamp (FL) Inverter Board for DSTN Color LCD The FL inverter board supplies high frequency current to light the LCD’s Fluorescent Lamp. Specifications for the FL inverter are listed in Table 1-4. Table 1-4 FL inverter board specifications for the DSTN color LCD Status Item Specifications...
Page 14 TFT Color LCD (700CT) The TFT Color Liquid Crystal Display (LCD) contains an LCD module, a Fluorescent Lamp (FL), and an FL inverter board. 1.7.1 TFT Color LCD Module The 700CT TFT color LCD supports 800 x 600 pixels with a built-in display controller. This controller includes the functions of Video Graphics Array (VGA) and Super VGA (SVGA) for external display.
Page 15 1.7.2 Fluorescent Lamp (FL) Inverter Board for TFT Color LCD 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 FL inverter board specifications for the TFT color LCD Status Item Specifications...
Page 16: Power Supply
Power Supply The power supply supplies four kinds of voltages to the system board, has one microproces- sor, and operates at 2 MHz. It contains the following functions: Determines if the AC adapter or battery is connected to the computer. Detects DC output and circuit malfunctions.
Page 17 Batteries The computer has three types of batteries: Main battery pack Backup battery Real Time Clock (RTC) battery The removable main battery pack is the computer’s main power source when the AC adapter is not attached. The backup and main batteries maintain the state of the computer when AutoResume is enabled.
Page 18 NOTES 1: Using quick charge 1, the system CPU automatically stops the charge after five hours and 30 minutes regardless of the condition of the battery. 2: The time required for quick charge 2 is affected by the amount of power the system is consuming.
Page 19 1.9.2 Backup Battery The backup battery maintains data for AutoResume. The power source used to back up the AutoResume data is determined according to the following priority: AC adapter > Main battery > Backup battery The backup battery is charged by the main battery or AC adapter. Table 1-10 lists the charg- ing time and data preservation period of the backup battery.
Page 20 1-20 700 Series...
Page 21: Troubleshooting
PS/2 or compatible keyboard PS/2 or compatible mouse Serial port wraparound connector PCMCIA wraparound card Multimedia sound system with line-in and line-out ports Headphone Lens cleaner for CD-ROM laser pickup lens Toshiba-EMI Test Disc TDY-03 for CD-ROM Drive 700 Series...
Page 22: Troubleshooting Flowchart
® Verify with the customer that Toshiba MS-DOS or Toshiba Windows 95 is installed on the hard disk. Non-Toshiba operating systems can cause the computer to malfunction. Make sure all optional equipment is disconnected from the computer. Make sure the floppy disk drive is empty.
Page 23 Figure 2-1 Troubleshooting flowchart (2/2) 700 Series...
Page 24 If the diagnostics program cannot detect an error, the problem may be intermittent. The Running Test program should be executed several times to isolate the problem. Check the Log Utilities function to confirm which diagnostic test detected an error(s), then perform the appropriate troubleshooting procedures as follows: If an error is detected on the system test, memory test, display test, ASYNC test, printer test, PCMCIA test, sound test, or real timer test, perform the system board/...
Page 25: Power Supply Troubleshooting
Power Supply Troubleshooting The power supply controls many functions and components. To determine if the power supply is functioning properly, start with Procedure 1 and continue with the other Procedures as instructed. The procedures described in this section are: Procedure 1: Power Status Check Procedure 2: Error Code Check...
Page 26 To check the power supply status, install a battery pack and connect an AC adapter. Check 1 If the DC IN icon flashes yellow, go to Procedure 2. Check 2 If the DC IN icon lights green, the power supply is normal. If not, go to Procedure Check 3 If the Battery icon lights yellow, the power supply is normal.
Page 27 Battery pack Error code Meaning Battery voltage is over the maximum allowed limit. Battery charge current is over the maximum allowed limit. Battery discharge current is over the maximum allowed limit when there is no load. Battery charge current is over the maximum allowed limit. B5V, VCC power supply output Error code Meaning...
Page 28 Check 2 If error code 01h displays: Make sure the AC adapter’s cable and AC cord are firmly plugged into the DC IN 15 V socket and wall outlet. If these cables are connected correctly, go to the following step. Connect a new AC adapter.
Page 29 Procedure 3 Connection Check The power supply wiring diagram is shown below: Any of the connectors may be disconnected. Perform Check 1. Check 1 Make sure the AC adapter’s cable and AC cord are firmly plugged into the DC IN 15 V socket and wall outlet.
Page 30: Table Of Contents
Procedure 4 Quick Charge Check The power supply may not be charging the battery pack. Perform the following procedures: Install the battery pack. Attach the AC adapter and turn on the power. If the power does not come on, go to Procedure 5.
Page 31: Procedure 5
Procedure 5 Replacement Check The power supply board or system board may be disconnected or damaged. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures, and check the connections between the power supply board and system board. If the boards are properly connected, perform the following check(s): Check 1 Replace the power supply board with a new one.
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 Toshiba MS-DOS or Toshiba Windows 95 is properly loaded, go to Procedure 3. Check 1 If any of the following error messages display, press the F1 key as the message instructs.
Page 33 Check 2 If the following error message displays, press any key as the message instructs. WARNING: RESUME FAILURE. PRESS ANY KEY TO CONTINUE. This message appears when data stored in RAM under the resume function is lost because the battery has become discharged or the system board is damaged. Go to Procedure 3.
Page 34: Check 1
Procedure 2 Printer Port LED Check on Boot Mode The printer port LED displays the IRT status and test status by turning lights on and off as an eight-digit binary value for boot mode. Figure 2-2 shows the printer port LED. Figure 2-2 Printer port LED To use the printer port LED, follow these steps: Turn on the computer, then set it to boot mode.
Page 35 Table 2-3 Printer port LED boot mode status (1/2) Icon status Test item Message Special register initialization PIT test PIT ERROR PIT initialization — PIT function check MEMORY REFRESH ERROR TIMER CH.2 OUT ERROR CMOS check CMOS CHECKSUM ERROR CMOS BAD BATTERY ERROR Initialization of —...
Page 36 Table 2-3 Printer port LED boot mode status (2/2) Icon status Test item Message Password check — Initialization of expansion ROM — Setup boot check *** Bad xxxx xxxx *** Check system. Then press [F1] key. Boot load — Check 1 If any of the following error codes display, go to Procedure 5.
Page 37 Procedure 3 Printer Port LED Check on Resume Mode The printer port LED displays the IRT status and test status by turning lights on and off as an eight-digit binary value for resume mode. To use the printer port LED, follow these steps: Turn on the computer, then set it to resume mode.
Page 38 Procedure 4 Diagnostic Test Program Execution Check Execute the following tests from the Diagnostic Test Menu. Refer to Chapter 3, Tests and Diagnostics, for more information on how to perform these tests. System test Memory test Printer test ASYNC test Real Timer test PCMCIA test SOUND test...
Page 39: Check 5
Procedure 5 Replacement Check The system board or other PCB may be damaged. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures, and perform the following checks. If the Real Timer diagnostic test detects an error, go to Check 1. If the Async diagnostic test detects an error, go to Check 2.
Page 40 Floppy Disk Drive Troubleshooting This section describes how to determine if the computer’s external 3.5-inch floppy disk drive is functioning properly. Perform the steps below starting with Procedure 1 and continue with the other procedures as required. Procedure 1: FDD Head Cleaning Check Procedure 2: Diagnostic Test Program Execution Check Procedure 3:...
Page 41 Procedure 2 Diagnostic Test Program Execution Check Insert the Diagnostics disk in the computer’s floppy disk drive, turn on the computer, and run the test. Refer to Chapter 3, Tests and Diagnostics, for more information about diagnostic test procedures. Floppy disk drive test error codes and their status names are listed in table 2-5. Make sure the floppy disk in the FDD is formatted correctly and that the write-protect tab is disabled.
Page 42 Procedure 3 Connector Check and Replacement Check The 3.5-inch Floppy Disk Drive is connected to the external 3.5-inch FDD port by the FDD cable. This cable may be disconnected from the port or damaged. Perform the following checks: Check 1 Make sure the FDD cable is firmly connected to the external 3.5-inch FDD port.
Page 43: Hard Disk Drive Troubleshooting
If Windows 95 is selected, use the Microsoft Create System Disks Tool (MSCSD.EXE) in the System Tools folder. 1. Do not use the BACKUP command in the Toshiba Companion Utility to back up the hard disk. 2. Have at least 35 2HD (1.44MB) diskettes ready to back up the hard disk (25 diskettes if Windows 3.1 is selected ).
Page 44 Procedure 1 Partition Check Insert the Toshiba MS-DOS system disk and turn on the computer, then perform the follow- ing checks: Check 1 Type C: and press Enter. If you cannot change to drive C, go to Check 2. If you can change to drive C, go to Procedure 2.
Page 45 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. System transferred Restart the computer. If the error message still appears, perform Check 4.
Page 46: Check 2
Procedure 4 Diagnostic Test Program Execution Check The HDD test program is stored in the Diagnostics Disk. Perform all of the HDD tests in the Hard Disk Drive Test. Refer to Chapter 3, Tests and Diagnostics, for more information about the HDD test program.
Page 47: Keyboard Troubleshooting
Keyboard Troubleshooting To determine if the computer’s keyboard is functioning properly, perform the following procedures. Start with Procedure 1 and continue with the other procedures as instructed. Procedure 1: Diagnostic Test Program Execution Check Procedure 2: Connector and Replacement Check Procedure 1 Diagnostic Test Program Execution Check Execute the Keyboard Test in the Diagnostic Program.
Page 48: Check 1
Display and FSTIP* Board Troubleshooting This section describes how to determine if the computer’s display is functioning properly. Start with Procedure 1 and continue with the other procedures as instructed. Procedure 1: Contrast Control Check (DSTN display only) Procedure 2: External CRT Check Procedure 3: Diagnostic Test Program Execution Check...
Page 49 Procedure 4 Connector Check The display unit has an LCD module, FL, display switch, and FL inverter board. The FL and FL inverter board are connected by two cables, and the LCD module and system board are connected by two signal cables (TFT display) as shown below. Any of these cables may be disconnected.
Page 50 Figure 2-4 TFT display connection If a cable is not connected, firmly reconnect it and repeat Procedures 1 and 2. If the problem still exists, perform Procedure 5. 2-30 700 Series...
Page 51 Procedure 5 Replacement Check The FL, FL inverter board, LCD module, and system board are connected to the display circuits. Any of these components may be damaged. Refer to Chapter 4, Replacement Procedures, for instructions on how to disassemble the computer, then perform the following checks.
Page 52 The CD-ROM drive Diagnostic Test program is stored on the computer's Diagnostics Disk. Insert a test CD (Toshiba-EMI Test Disc TDY-03) into the CD-ROM drive. Then insert the Diagnostics disk in the computer’s floppy disk drive, turn on the computer, and run the test.
Page 53 Procedure 3 Connector Check and Replacement Check The CD-ROM drive has an internal CD-ROM drive cable. This cable connects to a flexible cable, which in turn connects to the system board. The internal CD-ROM drive cable may be disconnected from the flexible cable, the flexible cable may be disconnected from the system board, or the flexible cable may be damaged.
Page 54 2-34 700 Series...
Page 55: The Diagnostic Test
The Diagnostic Test This chapter explains how to use the Diagnostic Test program to test the functions of the computer’s hardware modules. The Diagnostics Program is stored on the Diagnostics Disk and consists of 22 programs that are grouped into the Service Program Module (DIAGNOS- TICS MENU) and the Test Program Module (DIAGNOSTIC TEST menu).
Page 56 The following equipment is required to perform some of the Diagnostic test programs: The Diagnostics Disk (all tests) A formatted working disk for the floppy disk drive test (all tests) 3.5-inch 2HD/2DD disk for the external 3.5-inch FDD A cleaning kit to clean the floppy disk drive heads (Head Cleaning) A PCMCIA wraparound connector for the I/O card test (PCMCIA test) A printer wraparound connector for the printer wraparound test (Printer test) An RS-232-C wraparound connector for the RS-232-C port wraparound test (ASYNC...
Page 57: Executing The Diagnostic Test
Executing the Diagnostic Test Toshiba MS-DOS is required to run the Diagnostics program. To start the program, follow the steps listed below. Insert the Diagnostics disk in the computer’s floppy disk drive and turn on the computer. NOTE: To execute the CD-ROM test, make sure the CD-ROM drive and test CD-ROM are installed in the computer and the FDD is attached to the FDD port.
Page 58 To select the DIAGNOSTIC TEST menu from the DIAGNOSTICS MENU, set the highlight bar to 1, and press Enter. The following menu will appear: TOSHIBA personal computer xxx DIAGNOSTICS version X.XX (c) copyright TOSHIBA Corp. 19XX DIAGNOSTIC TEST menu : 1 - SYSTEM TEST...
Page 59 NOTE: The menu displayed by your computer may be slightly different from the one shown above. Select the desired subtest from the subtest menu and press Enter. The following messages will appear: TEST LOOP : YES ERROR STOP : YES Use the arrow keys to move the cursor to the desired option and press Enter.
Page 60: Subtest Names
Subtest Names Table 3-1 lists the subtest names for each test program in the DIAGNOSTIC TEST menu. Table 3-1 Subtest names (1/2) Test Name Subtest No. Subtest Item SYSTEM ROM checksum Fan ON/OFF Thermistor check Serial ID check MEMORY Constant data Address pattern data Refresh Protected mode...
Page 61 Table 3-1 Subtest names (2/2) Test Name Subtest No. Subtest Item ASYNC Wraparound (board) Point to point (send) Point to point (receive) Interrupt test SIR Wrap around test SIR point to point (send) SIR point to point (receive) Sequential read Address uniqueness Random address/data Cross talk &...
Page 62: System Test
System Test To execute the System Test, select 1 from the DIAGNOSTIC TEST menu, press Enter and follow the directions displayed on the screen. Move the highlight bar to the subtest you want to execute and press Enter. Subtest 01 ROM checksum The ROM checksum tests the system board from address F0000h to FFFFFh (64KB).
Page 63: Memory Test
Memory Test To execute the Memory Test, select 2 from the DIAGNOSTIC TEST menu, press Enter and follow the directions displayed on the screen. Move the highlight bar to the subtest you want to execute and press Enter. Subtest 01 Constant data (real mode) This subtest writes a 256-byte unit of constant data to conventional memory (0 to 640 KB).
Page 64 Subtest 05 Memory module NOTE: To execute this subtest, an optional memory card must be installed in the computer. This subtest functions the same as Subtest 04, except it is used for testing an optional memory card. Memory module capacity is 8 MB, 16 MB and 32 After selecting Subtest 05, the following message will appear: Extended memory size (2:8 MB,3:16 MB,4:32 MB)? Select the number that corresponds to the memory card installed in the com-...
Page 65: Keyboard Test
Keyboard Test To execute the Keyboard Test, select 3 from the DIAGNOSTIC TEST menu, press Enter and follow the directions displayed on the screen. The Keyboard test contains four subtests that test the computer’s keyboard actions. Move the highlight bar to the subtest you want to execute and press Enter.
Page 66 Subtest 02 Pressed key code display When a key is pressed, the scan code, character code, and key top name are displayed on the screen in the format shown below. The Ins, Caps Lock, Num Lock, Scroll Lock, Alt, Ctrl, Left Shift, and Right Shift keys are displayed in reverse screen mode when pressed.
Page 67 Subtest 04 Pointing Stick This subtest checks the functions of the pointing stick as shown below. A) IPS stick pressure sensing direction and parameter. B) IPS switch function check. This test reports the pointing stick motion response from the IPS and IPS switch by displaying the location parameters.
Page 68: Display Test
Display Test To execute the Display Test, select 4 from the DIAGNOSTIC TEST menu, press Enter and follow the directions displayed on the screen. The Display test contains eleven subtests that test the display in various modes. Move the highlight bar to the subtest you want to execute and press Enter.
Page 69 After pressing Enter, 16 colors or 16 gray scales of mode 13h appear in the 320x200 graphics mode as shown below: 320*200 GRAPHICS DISPLAY [ 13 ] BLACK BLUE GREEN CYAN MAGENTA BROWN WHITE GRAY LIGHT BLUE LIGHT GREEN LIGHT CYAN LIGHT RED LIGHT MAGENTA YELLOW...
Page 70 Subtest 04 80x25/30 Character Display (mode 3, 12) In this subtest, the character string is displayed shifting one character to the right, line by line, in the 80x25 and 80x30 character modes as shown below. 80*XX CHARACTER DISPLAY 012345678901234567890123456789012345678901234567890123456789012345678901234567 !”#$%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklm !”#$%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmn “#$%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmno #$%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnop...
Page 71 Subtest 06 640x200 Graphics Display (mode 6, E) This subtest displays even dots, odd dots, and all dots in the 640x200 dot graphics modes 6 and E as shown below: 640*200 GRAPHICS DISPLAY : [X] EVEN DOTS ODD DOTS ALL DOTS DRIVEN DRIVEN DRIVEN...
Page 72 Subtest 08 Display Page This subtest confirms that the pages can be changed in order from page 0 through page 7 in 40*25 character mode. DISPLAY PAGE 0 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000 Pressing Ctrl + Break exits this subtest upon completion of the test and returns the screen to the DISPLAY TEST menu.
Page 73 [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. Subtest 10 LED/DAC Pallet This subtest checks the LED indicator (Caps Lock, Overlay and Num Lock) by key operation.
Page 74: Floppy Disk Test
Floppy Disk Test NOTE: Before running the floppy disk test, prepare a formatted work disk. Remove the Diagnostics Disk and insert the work disk into the FDD. The contents of the floppy disk will be erased. To execute the Floppy Disk Test, select 5 from the DIAGNOSTIC TEST menu, press Enter and follow the directions displayed on the screen.
Page 75 Subtest 01 Sequential Read This subtest performs a Cyclic Redundancy Check (CRC) that continuously reads all the tracks on the floppy disk. The following tracks are read accord- ing to the media type in the floppy disk drive: Double-sided, double-density (2D): Tracks 0 to 39. Double-sided, double-density, double-track (2DD) and double-sided, high-density, double-track (2HD): Tracks 0 to 79.
Page 76: Printer Test
Printer Test To execute the Printer Test, select 6 from the DIAGNOSTIC TEST menu, press Enter and follow the directions displayed on the screen. The Printer Test contains three subtests that test the output of the printer connected to the computer. NOTE: An IBM-compatible printer must be connected to the system to execute this test.
Page 77 Subtest 02 Function This subtest is for IBM-compatible printers, and tests the following functions: Normal print Double-width print Compressed print Emphasized print Double-strike print All characters print The subtest prints the various print types shown below: PRINTER TEST THIS LINE SHOWS NORMAL PRINT. 2.
Page 78: Async Test
3.10 Async Test To execute the Async Test, select 7 from the DIAGNOSTIC TEST menu, press Enter and follow the directions displayed on the screen. The Async Test contains seven subtests that test the asynchronous communication functions. Move the highlight bar to the subtest you want to execute and press Enter.
Page 79 Subtest 03 Point to point (Receive) This subtest, used with Subtest 03 described above, receives the data from the send side, then sends the received data. Subtest 04 Interrupt Test This subtest checks the Interrupt Request Level of IRQ 4, 3 and 5 from the send side.
Page 80: Hard Disk Test
If Windows 95 is selected, use the Microsoft Create System Disks Tool (MSCSD.EXE) in the System Tools folder. 1. Do not use the BACKUP command in the Toshiba Companion Utility to back up the hard disk. 2. Have at least 35 2HD (1.44MB) diskettes ready to back up the hard disk (25 diskettes if Windows 3.1 is selected).
Page 81 Select 1 or 2 and press Enter. The following message will appear: Detail status display (1:no,2:yes) ? This message is used to select whether or not the HDD status is displayed on the screen. The HDD status is described in Section 3.18. Select 1 or 2 and press Enter.
Page 82 Subtest 04 Cross Talk & Peak Shift This subtest writes eight types of worst pattern data (shown below) to a cylinder, then reads the data while moving from cylinder to cylinder. Worst pattern data Cylinder ‘B5ADAD’ 0 cylinder ‘4A5252’ 1 cylinder ‘EB6DB6’...
Page 83: Real Timer Test
3.12 Real Timer Test To execute the Real Timer Test, select 9 from the DIAGNOSTIC TEST menu, press Enter and follow the directions on the screen. The Real Timer Test contains three subtests that test the computer’s real timer functions. Move the highlight bar to the subtest you want to ex- ecute and press Enter.
Page 84 Subtest 03 Real Time Carry CAUTION: When this subtest is executed, the current date and time are erased. This subtest checks the real time clock increments, making sure the date and time are displayed in the following format: Current date : 12-31-1994 Current time : 23:59:58 Pressing Enter displays the following: Current date : 01-01-1995...
Page 85: Ndp Test
3.13 NDP Test To execute the NDP test, select 10 from the DIAGNOSTIC TEST menu, press Enter and follow the directions on the screen. The NDP test contains one subtest that tests the computer’s NDP functions. Subtest 01 This test checks the following functions of the coprocessor: Control word Status word Addition...
Page 86: Expansion Test
3.14 Expansion Test NOTE: To execute this subtest, the PCMCIA wraparound connector is required. Subtest 01 PCMCIA wraparound (Main) (Point to point (Receive)) This test checks the following signal lines of the PCMCIA slot: Address line REG#, CE#1, CE#2 line Data line Speaker line Wait line...
Page 87: Subtest 01
3.15 Sound Test To execute the Sound Test, select 12 from the DIAGNOSTIC TEST menu, press Enter and follow the directions on the screen. The Sound Test contains four subtests that test the computer’s sound functions. NOTE: To execute this subtest, the internal microphone and internal headphone (or internal speaker) are required.
Page 88: Subtest 04
Subtest 04 CODEC (line in/out) (record sound/replay) Load the file ESS688L.COM. Connect a sound source such as a CD player or stereo to the line-in port. Next, connect an output device such as an amplifier for the internal speaker or a radio/cassette player to the line-out port. After making the connections, a dialogue box will display.
Page 89: Subtest 01
3.16 CD-ROM Test NOTE: Make sure the CD-ROM driver (CDROMDRV.COM) is installed, then insert the test media CD (Toshiba-EMI Test Disk TDY-03) before executing this test. To execute the CD-ROM Test, select 13 from the DIAGNOSTIC TEST menu, press Enter and follow the directions on the screen.
Page 90: Error Codes And Error Status Names
3.17 Error Codes and Error Status Names Table 3-2 lists the error codes and error status names for the Diagnostic Tests. Table 3-2 Error codes and error status names (1/3) Device Name Error Code Error Status Name (Common) Data Compare Error System ROM Checksum Error Memory...
Page 91 Table 3-2 Error codes and error status names (2/3) Device Name Error Code Error Status Name Async (cont.) Framing Error Overrun Error Line Status Error Modem Status Error Bad Command Error Address Mark Not Found Record Not Found HDC Not Reset Error Drive Not Initialized HDC Overrun (DRQ) DMA Boundary Error...
Page 92 Table 3-2 Error codes and error status names (3/3) Device Name Error Code Error Status Name CD-ROM Bad Command Illegal Length Unit Attention Media Change Request Media Detected Additional Sense Boundary Error Corrected Data Error Drive Not Ready Seek Error Time Out Reset Error Address Error...
Page 93: Hard Disk Test Detail Status
3.18 Hard Disk Test Detail Status When an error occurs in the hard disk test, the following message is displayed: HDC status = XXXXXXXX Detailed information about the hard disk test error is displayed on the screen by an eight-digit number.
Page 94 Table 3-4 Error register contents Name Description BBK1 “0” --- Other (Bad block “1” --- A bad block mark was detected. mark) “0” --- There is no uncorrectable data error. (Uncorrectable) “1” --- An uncorrectable data error was detected. —— Not used IDNF “0”...
Page 95: 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 using BACKUP in the Toshiba Companion Utility. See the Toshiba MS-DOS manual for details.
Page 96 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 2 and pressing Enter in the DIAGNOSTIC MENU displays the following submenu: DIAGNOSTICS - HARD DISK FORMAT : VX.XX...
Page 97 1. All track FORMAT Pressing 1 selects All track FORMAT, which lets you format the entire disk. [All track FORMAT] Drive : #1 = HDD #2 = Non Cylinder : XXXX Head Sector <<< Model name = >>> The following selections display at the bottom of the screen in succession: Drive number select (1:#1,2:#2) ? Select a drive number and press Enter.
Page 98 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 verifi- cation described in item (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 for- matted as a bad track automatically.
Page 99: Head Cleaning
3.20 Head Cleaning 3.20.1 Function Description This function cleans the heads in the FDD by executing a series of head load/seek and read operations. A cleaning kit is necessary to perform this program. 3.20.2 Operations 1. Selecting 4 from the DIAGNOSTIC MENU and pressing Enter displays the following messages: DIAGNOSTICS - FLOPPY DISK HEAD CLEANING : VX.XX Mount cleaning disk(s) on drive(s).
Page 100: Log Utilities
3.21 Log Utilities 3.21.1 Function Description This function logs error information generated while a test is in progress and stores the results in RAM. This function can store data on a floppy disk or output the data to a printer. If the power switch is turned off, the error information will be lost.
Page 101 2. Error information displayed on the screen can be manipulated with the following number keys: The 1 key scrolls the display to the next page. The 2 key scrolls the display to the previous page. The 3 key returns to the Diagnostics Menu. The 4 key erases all error log information in RAM.
Page 102: Running Test
3.22 Running Test 3.22.1 Function Description This function automatically executes the following tests in sequence: System test (Subtest 01) Memory test (Subtests 01, 02, 04 and 06) Display test (Subtests 01 to 08) FDD test (Subtest 02) HDD test (Subtests 01 and 05) Real timer test (Subtest 02) Printer test (Subtest 03) Async test (Subtest 01)
Page 103 4. Select Yes or No and press Enter. The following message will appear : Mount the work disk(s) on the drive(s), then press [Enter] key. [Warning : The contents of the disk(s), will be destroyed.] 5. This program executes continuously. To terminate the program, press Ctrl + Break.
Page 104: Floppy Disk Drive Utilities
FDD and HDD. 1. FORMAT NOTE: This program is only for testing a floppy disk drive. The option is different from the Toshiba MS-DOS FORMAT command. This program can format a 5.25-inch or 3.5-inch floppy disk in the following formats: 2D: Double-sided, double-density, 48/67.5 TPI, MFM mode, 512 bytes,...
Page 105 2. FORMAT program Selecting FORMAT displays the following message: DIAGNOSTICS - FLOPPY DISK FORMAT : VX.XX Drive number select (1:A, 2:B) ? Select a drive number to display the following message: Type select (0:2DD-2DD,1:2D-2D,2:2D-2HD,3:2HD-2HD) ? Select a media/drive type number and press Enter. A message similar to the one below will be displayed: Warning : Disk data will be destroyed.
Page 106 Remove the Diagnostics Disk from the FDD, insert the source disk, and press any key. The following message will appear, indicating the pro- gram has started. [ FDD TYPE ] : TRACK = XXX [ FDD TYPE ] : HEAD [ FDD TYPE ] : SECTOR = XX Copy start [[ track,head...
Page 107 Select a format type. The following message will appear: Insert source disk into drive A: Press any key when ready. Insert a source disk and press any key. The following message will appear: —— Max. address —— [ Track ] = XXXX [ Head ] = XX [ Sector ] = XX Track...
Page 108: System Configuration
3.24 System Configuration 3.24.1 Function Description The System Configuration program contains the following configuration information for the computer: 1. BIOS ROM version 2. Boot ROM version 3. KBC version 4. PS Micom Version 5. Base memory size 6. The number of floppy disk drives 7.
Page 109 3.25 SETUP 3.25.1 Function Description This program displays the current system setup information as listed below. 1. Memory (a) Total 2. Display (a) Display Adapter (b) LCD Display Colors (c) Power On Display (d) Text Mode Stretch (e) VGA Segment Address 3.
Page 110: Accessing The Setup Program
3.25.2 Accessing the SETUP Program Selecting 0 from the DIAGNOSTICS MENU and pressing Enter displays the Setup screen, as illustrated below: SYSTEM SETUP BIOS version = x.xx MEMORY I/O PORTS Total = 8192 KB Serial Port = COM1(3F8H/IRQ4) Infrared Port = Not Used DISPLAY Parallel Port...
Page 111 If the changed item requires the system to reboot, the following message is displayed: Are you sure? (Y/N) The changes you made will cause the system to reboot. To make other changes, press N, then repeat the steps above. To accept the changes, press Y. The system will reboot automatically. NOTE: You can press Esc to quit at any time without saving changes.
Page 112 2. Display These options configure the computer’s display. Display Adapter Displays the internal controller for the VGA internal display. Only VGA compatible is displayed. This option cannot be changed. LCD Display Colors Selects the color palette of the internal TFT display when the LCD mode is set to Color.
Page 113 Text Mode Stretch Enables a larger display area of the screen. Enabled Enables the text mode stretch feature. (Default) Disabled Disables the text mode stretch feature. VGA Segment Address Sets the VGA segment address. C000H E000H (Default) E400H NOTE: In the DOS environment, if you choose either E400H or C000H, the Pop-up window is not displayed when you press the Fn+F2 or Fn+F3 hot keys.
Page 114 NOTE: Formats for Enhanced IDE and Standard IDE are different. If you change the setting, you will have to reformat the hard disk for the appropriate setting. 5. PCI Bus Displays the interrupt level for the PCI bus. This option is for information only and cannot be changed.
Page 115 Infrared Port Sets the COM level for the infrared port. The infrared port interrupt request level (IRQ) and I/O port base address for each COM level is shown below. COM level Interrupt level I/O address COM1 3F8h (Serial port default) COM2 2F8h COM3...
Page 116 Sound system Enables or disables the sound card ports. Address/IRQ/DMA Enables the port. (Default) Disabled Disables the port. When Address/IRQ/DMA is selected, a subwindow similar to the one below appears to let you set the I/O address, Interrupt level and DMA channel for the sound card.
Page 117 (3) DMA (Direct Memory Access) channel Use this option to set the DMA channel. The available settings are: Channel 0 Channel 1 (Default) Channel 3 7. Battery This option selects the BATTERY SAVE OPTION. Selections include Full Power, Low Power, and User Setting. Full Power The following shows the full power settings.
Page 118 Battery Save Options The following set of options can be selected in the sub menu of the User Setting, which is one of the Battery Save Mode options. (1) Processing Speed This feature changes the CPU processing speed. High The CPU operates at high speed. (Default) The CPU operates at low speed.
Page 119 (5) System Auto Off Use this option to enable or disable the system automatic off function in Resume mode when you are working in DOS. In Boot mode, it is disabled and not displayed. Disabled Disables the system automatic power off. xx Min.
Page 120 Power-up Modes This option lets you choose between AutoResume and boot mode. You can also set this option using hot keys. 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.
Page 121 NOTES: 1. Do not remove the AC and battery pack at the same time when you use this feature. If you do so, data saved by AutoResume will be lost. You must also reset this option. 2. If you have set a password and the computer boots by the Auto Power On function and Resume is on, the computer will start with the instant security function enabled.
Page 122 Panel Power On/Off This option allows you to automatically turn your 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 123 (2) Ext. Keyboard Fn key equivalent Use this option to set a key combination on an external keyboard to emulate the Fn key on the computer’s internal keyboard. Setting an Fn key equivalent will enable you to use “Hot keys” by pressing the set combination in place of the Fn key.
Page 124 3-70 700 Series...
Page 125 General This section explains how to disassemble the computer and replace Field Replaceable Units (FRUs). It may not be necessary to remove all the FRUs in order to replace one. The chart below is a guide to which FRUs need to be removed in order to remove others. Always start by removing the battery pack, then follow the chart below to determine which FRUs must be removed in order to repair the one you think is causing the computer to operate improperly.
Page 126 1. Always use a lithium ion battery pack or backup battery that is authorized by Toshiba or compatible with the unit. Since other battery packs have different specifications, they may be incompatible with the unit, and may burst or explode.
Page 127 Before You Begin Look over the procedures in this section before you begin disassembling the computer. Familiarize yourself with the disassembly and reassembly steps. Begin each procedure by removing the AC adapter and the battery pack as instructed in Section 4.2, Battery Pack. Do not disassemble the computer unless it is operating abnormally.
Page 128 Disassembly Procedures The computer has three basic types of cable connectors: Pressure Plate Connectors Normal Pin Connectors Flexible Cable Connectors To disconnect a pressure plate connector, lift up the tabs on either side of the connector's plastic pressure plate and slide the cable out of the connector. To connect the cable, make sure the pressure plate is fully lifted and slide the cable into the connector.
Page 129 Tools and Equipment The use of ElectroStatic Discharge (ESD) equipment is very important for your safety and the safety of those around you. 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 computer: One M2 Phillips screwdriver to remove and replace screws.
Page 130: Battery Pack
Figure 4-1 Removing the battery NOTE: For environmental reasons, do not throw away a spent battery pack. Please return spent battery packs to Toshiba. With the battery cover in the locked position, push up on the straight end of the cover, then slide the cover to free it from its latches.
Page 131 To install the battery pack, follow the steps below and refer to Figure 4-1. WARNING: The battery is a lithium ion battery which can explode if it is not properly replaced, used, handled or disposed of. Use only batteries recommended by Toshiba as replacements.
Page 132: Optional Memory Module
Optional Memory Module Removing an Optional Memory Module To remove an optional memory module, make sure the computer is in boot mode, then follow the steps below and refer to Figures 4-2 and 4-3. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer.
Page 133 Grasp the memory module and lift it to disconnect it from the computer. Figure 4-3 Disconnecting the memory module Installing an Optional Memory Module To install an optional memory module, make sure the computer is in boot mode, then follow the steps below and refer to Figures 4-2 and 4-3.
Page 134 Optional PCMCIA Card Removing an Optional PCMCIA Card To remove a PCMCIA card, make sure the computer is in boot mode, then follow the steps below and refer to Figure 4-4. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer.
Page 135 Installing an Optional PCMCIA Card To install a PCMCIA card, follow the steps below and refer to Figure 4-5. NOTE: Before you install the PCMCIA card, make sure the computer is in boot mode. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer.
Page 136 Floppy Disk Drive (FDD) Removing the FDD To remove the FDD, follow the steps below and refer to Figures 4-6 to 4-9. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer. Remove the battery pack, optional memory module, and optional PCMCIA card as described in Sections 4.2, 4.3, and 4.4.
Page 137 Remove six M2x6 screws. Turn the FDD over and unsnap the two latches securing the upper plastic cover. Turn the FDD back over and lift off the upper plastic cover. Figure 4-7 Removing the FDD screws Lift off the plate, unseat the FDD cable connector from the lower plastic cover, and lift out the FDD.
Page 138 Disconnect the flexible cable by pulling it out from the FDD (Figure 4-9). Remove four M2x3 screws and remove the FDD from the bracket. Figure 4-9 Removing the FDD from its bracket Installing the FDD To install the FDD, follow the steps below and refer to Figures 4-10 back through 4-6. Seat the FDD in the metal bracket and secure it with four M2x3 screws.
Page 139 Figure 4-10 Installing the FDD Install the optional PCMCIA card, optional memory module, and battery pack as described in Sections 4.4, 4.3 and 4.2. 4-15 700 Series...
Page 140 Optional CD-ROM Drive Removing an Optional CD-ROM Drive To remove a CD-ROM drive, follow the steps below and refer to Figures 4-11 to 4-13. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer. Remove the battery pack, optional memory module, and optional PCMCIA card as described in Sections 4.2, 4.3, and 4.4.
Page 141 Remove four M2x3 screws and two M2.5x6 screws securing the frame to the CD-ROM drive. Figure 4-12 Removing the CD-ROM drive screws Slide the drive partially out of the frame. Remove the cover and disconnect the cable connector. Figure 4-13 Removing the CD-ROM drive 4-17 700 Series...
Page 142 Installing an Optional CD-ROM Drive To install a CD-ROM drive, follow the steps below and refer to Figures 4-14 back through 4- Seat the cover and connect the cable connector. Push the CD-ROM drive fully into the frame. Secure the frame to the drive with four M2x3 screws and two M2.5x6 screws. Turn the computer upside down.
Page 143 Hard Disk Drive (HDD) Removing the Hard Disk Drive To remove the hard disk drive, follow the steps below and refer to Figures 4-15 to 4-17. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer.
Page 144 Remove the two flat screws securing the HDD to the case and lift out the HDD. Carefully pull off the HDD connector. Figure 4-17 Removing the HDD Installing the Hard Disk Drive To install the hard disk drive, follow the steps below and refer to Figures 4-17 back through 4-15.
Page 145 Upper Cover and Keyboard Removing the Upper Cover and Keyboard To remove the upper cover and keyboard, follow the steps below and refer to Figures 4-18 to 4-20. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer.
Page 146 NOTE: Later models include a metal keyboard lock located near the upper left corner of the keyboard. Remove the M2.5x6 screw holding the lock in place, then lift out the lock. Lift off the keyboard to access the keyboard cable. Disconnect the flexible cable from PJ706 and remove the keyboard.
Page 147 Speakers, Keyboard Base, and Display Assembly Removing the Speakers, Keyboard Base, and Display Assembly To remove the speakers, keyboard base, and display assembly, follow the steps below and refer to Figures 4-21 to 4-24. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer.
Page 148 Disconnect the AccuPoint control button flexible cable from PJ702 on the IPS board (Figure -22). CAUTION: 1. Handle the LCD flexible cable with care since stress in the bends of the cable may cause damage. 2. Do not completely remove the black or yellow tape on the LCD flexible cable.
Page 149 Open the PCMCIA card cover, remove two M2.5x4 silver screws, and remove the cover. Remove six M2.5x6 screws. Note the screw located under the ferrite core and locations of the ground wires. NOTE: On units with a keyboard lock, you will find only five M2.5x6 screws securing the keyboard base.
Page 150 Remove two M2.5x4 screws and two M2.5x6 screws. Lift off the metal cover. Figure 4-24 Removing the metal cover Installing the Speakers, Keyboard Base, and Display Assembly To install the speakers, keyboard base, and display assembly, follow the steps below and refer to Figures 4-24 back through 4-21.
Page 151 Seat the speakers under the mylar insulators. Be sure to peel back the tape on the LCD cable to route the speaker cable under the tape, then replace the tape. Route the speaker cables through the insulators to the right of the LCD cable. Connect the speaker cable to PJ5 on the sound board, then place the cables in the well next to the right speaker.
Page 152: Infrared Board
4.10 Infrared Board Removing the Infrared Board To remove the infrared board, follow the steps below and refer to Figure 4-25. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer. Remove the battery pack, optional memory module, optional PCMCIA card, FDD or optional CD-ROM drive, HDD, upper cover, keyboard, speakers, keyboard base, and display assembly as described in Sections 4.2 through 4.9.
Page 153: Sound Board
4.11 Sound Board Removing the Sound Board To remove the sound board, follow the steps below and refer to Figure 4-26. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer. Remove the battery pack, optional memory module, optional PCMCIA card, FDD or optional CD-ROM drive, HDD, upper cover and keyboard, speakers, keyboard base and display assembly, and infrared board as described in Sections 4.2 through...
Page 154 Installing the Sound Board To install the sound board, follow the steps below and refer to Figure 4-26. Position the mouse and keyboard ports on the sound board through their corresponding holes in the metal bracket on the system board, then seat the sound board.
Page 155 4.12 IPS Board and RTC Battery 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. Removing the IPS Board and RTC battery To remove the IPS board and RTC battery, follow the steps below and refer to Figure 4-27.
Page 156 Installing the IPS Board and RTC battery To install the IPS board and RTC battery, follow the steps below and refer to Figure 4-27. Connect the drive connector flexible cable to PJ701. Seat the IPS board. Secure one M2.5x6 screw. Seat the RTC battery and secure the battery and cable with tape.
Page 157 4.13 Power Supply Board and Sub Battery WARNING: If you replace the sub 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. Removing the Power Supply Board and Sub Battery To remove the power supply board and sub battery, follow the steps below and refer to Figures 4-28 and 4-29.
Page 158 Remove four M2.5x6 screws securing the power supply board. Note the location of the metal ground plate under one of the screws. Pull up on the DC IN socket to disconnect PJ10 on the power supply board from PJ11 on the system board and remove the power supply board. Figure 4-29 Removing the power supply board Installing the Power Supply Board and RTC Battery To install the power supply board and RTC battery, follow the steps below and refer to...
Page 159: Bottom Cover
4.14 Bottom Cover Removing the Bottom Cover To remove the bottom cover, follow the steps below and refer to Figures 4-30 to 4-33. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer. Remove the battery pack, optional memory module, optional PCMCIA card, FDD or optional CD-ROM drive, HDD, upper cover and keyboard, speakers, keyboard base and display assembly, infrared board, sound board, IPS board and power...
Page 160 Use a jeweler's screwdriver to disconnect PJ5 from PJ17 on the system board and PJ1 from PJ7 on the system board flexible cable. Remove the plastic base from the HDD connector. Lift out the flexible cable assembly. Figure 4-31 Removing the flexible cable Remove five M2.5x6 screws securing the system board and frame.
Page 161 Remove the system board and frame from the bottom cover. Figure 4-33 Separating the system board and frame from the bottom cover Installing the Bottom Cover To install the bottom cover, follow the steps below and refer to Figures 4-33 back through 4- Seat the system board and frame in the bottom cover.
Page 162: System Board
4.15 System Board Removing the System Board To remove the system board, follow the steps below and refer to Figures 4-34 and 4-35. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer. Remove the battery pack, optional memory module, optional PCMCIA card, FDD or optional CD-ROM drive, HDD, upper cover and keyboard, speakers, keyboard base and display assembly, infrared board, sound board, IPS board, power supply...
Page 163 Turn the assembly over again and remove four M2x4 screws. Figure 4-35 Removing screws from the system board Separate the system board from the metal cover. Installing the System Board To install the system board, follow the steps below and refer to Figures 4-34 and 4-35. Seat the system board in the metal cover.
Page 164 4.16 Fan Removing the Fan To remove the fan, follow the steps below and refer to Figure 4-36. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer. Remove the battery pack, optional memory module, optional PCMCIA card, FDD or optional CD-ROM drive, HDD, upper cover and keyboard, speakers, keyboard base and display assembly, infrared board, sound board, IPS board, power supply board, bottom cover, and system board as described in Sections 4.2 through 4.15.
Page 165: Display Mask
4.17 Display Mask Removing the Display Mask To remove the display mask, follow the steps below and refer to Figures 4-37 and 4-38. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer. Remove the battery pack, optional memory module, and optional PCMCIA card as described in Sections 4.2, 4.3 and 4.4.
Page 166 Carefully insert your fingers between the mask and the LCD panel and pry open the latches. Start with the three latches across the top of the display mask. Continue unlatching the mask along the sides (three latches on each side), at the bottom (three latches), and the display hinges (one latch at the small hinge and two latches at the large hinge).
Page 167 4.18 DSTN Fluorescent Lamp (FL) Inverter Board Removing the DSTN FL Inverter Board To remove the DSTN FL inverter board, follow the steps below and refer to Figure 4-39. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer.
Page 168 Installing the DSTN FL inverter board To install the DSTN FL inverter board, follow the steps below and refer to Figure 4-39. Connect the FL inverter cable to CN1 on the inverter board and the FL cable to CN2. Route the cables so they are not pinched by the FL inverter board, display hinge or other component.
Page 169 4.19 TFT FL Inverter Board Removing the TFT FL Inverter Board To remove the TFT FL inverter board, follow the steps below and refer to Figure 4-40. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer.
Page 170 Installing the TFT FL inverter board To install the TFT FL inverter board, follow the steps below and refer to Figure 4-40. Connect the FL inverter cable to CN1 on the inverter board and the FL cable to CN2. Route the cables so they are not pinched by the FL inverter board, display hinge or other component.
Page 171: Lcd Module
4.20 LCD Module Removing the LCD Module To remove the LCD module, follow the steps below and refer to Figure 4-41. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer. Remove the battery pack, optional memory module, optional PCMCIA card, display mask, and FL inverter board as described in Sections 4.2, 4.3, 4.4, 4.17 and 4.18 (DSTN display) or 4.19 (TFT display).
Page 172 Installing the LCD Module To install the LCD module, follow the steps below and refer to Figure 4-41. Connect the LCD flexible cable to CN1 on the LCD module. Seat the LCD module, then secure it to the LCD cover with four M2.5x6 screws. Install the FL inverter board, display mask, optional PCMCIA card, optional memory module, and battery pack as described in Sections 4.19 (TFT display) or 4.18 (DSTN display), 4.17, 4.4, 4.3 and 4.2.
Page 173 4.21 FL Inverter Cable and Display Cable Removing the FL Inverter Cable and Display Cable To remove the FL inverter cable and display cable, follow the steps below and refer to Figure 4-42. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer.
Page 174 Installing the FL Inverter Cable and Display Cable To install the FL inverter cable and display cable, follow the steps below and refer to Figure 4-42. Connect the FL inverter cable, contrast control board cable (DSTN only), and display cable on the LCD module. Route the FL inverter cable through the mylar insulators.
Page 175 4.22 DSTN FL CAUTION: When you remove the FL, be careful not to let any dust or other foreign matter enter the display panel components. Removing the DSTN FL To remove the DSTN FL, follow the steps below and refer to Figures 4-43 to 4-45. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer.
Page 176 Figure 4-44 Removing the FL cover Lift out the FL. Figure 4-45 Removing the DSTN FL Installing the DSTN FL To install the DSTN FL, follow the steps below and refer to Figures 4-45 back to 4-43. Lay the FL in the groove of the cover assembly. Replace the FL cover and slide it into place to engage the nine latches.
Page 177 4.23 TFT FL CAUTION: When you remove the TFT FL, be careful not to let any dust or other foreign matter contaminate the LCD panel. Any contamination can affect the performance of the unit. Removing the TFT FL To remove the TFT FL, follow the steps below and refer to Figure 4-46. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer.
Page 178 Installing the TFT FL To install the TFT FL, follow the steps below and refer to Figure 4-46. Place the FL in the frame. Lift up the plastic film to route the FL cable. Seat the metal FL cover. Secure the six latches. Secure two M2x6 silver screws.
Page 179 4.24 Microphone Removing the Microphone To remove the microphone, follow the steps below and refer to Figure 4-47. Turn off the power to the computer, then disconnect the AC adapter and all external cables connected to the computer. Remove the battery pack, optional memory module, optional PCMCIA card, FDD or optional CD-ROM drive, HDD, upper cover and keyboard, speakers, keyboard base and display assembly, and display mask as described in Sections 4.2 through 4.9 and 4.17.
Page 180 4-56 700 Series...
Page 181: Appendix A Handling The Lcd Module
Appendix A Handling the LCD Module Precautions for Handling the LCD Module The computer’s LCD module can be easily damaged during assembly or disassembly. There- fore, please observe the following precautions when handling the 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 182 If the panel’s surface gets dirty, wipe it with cotton or a soft cloth. If it is still dirty, try breathing on the surface to create a light condensate and wipe it again. If the surface is very dirty, we recommend using a CRT cleaning agent. Apply the agent to a cloth and then wipe the panel’s surface.
Page 183 CMOS-LSI circuits are used in the module, so guard against damage from electro- static discharge. Be sure to wear a wrist or ankle ground when handling the module. Do not expose the module to direct sunlight or strong ultraviolet rays for long periods.
Page 184 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 panels’ polarization. 700 Series...
Page 185 Appendix B Board Layout System Board - Front View Figure B-1 System Board layout (front) 700 Series...
Page 186 System Board - Back View Figure B-2 System Board layout (back) 700 Series...
Page 187 Table B-1 System board ICs and connectors (front) Mark Number Name Clock GEN. Data Buffer GA PCI Bridge GA IC8 to IC11 System Memory IC16 VGA Controller IC18 to IC19 VRAM CRT Connector PCMCIA Connector Docking I/F Connector Parallel I/F Connector PJ14 Sound (1) Connector PJ15...
Page 188 IPS Board - Front View Figure B-3 IPS board layout (front) Table B-3 IPS board ICs and connectors (front) Mark Number Name IC701 IPS Controller IC703 to IC706 LCD Driver PJ703 LCD I/F Connector PJ705 FL Inverter Connector PJ706 Keyboard Connector PJ707 RTC Battery Connector PJ708...
Page 189: Appendix C Pin Assignments
Appendix C Pin Assignments PJ1 Expansion Memory Connector on the System Board (140-pin) Table C-1 Expansion memory connector pin assignments on the System Board (140-pin) (1/2) Pin No. Signal Name Pin No. Signal Name MD00;100 MD01;100 MD02;100 MD03;100 MD04;100 MD05;100 MD06;100 MD07;100 MD08;100...
Page 190 Table C-1 Expansion memory connector pin assignments on the System Board (140-pin) (2/2) Pin No. Signal Name Pin No. Signal Name MD18;100 MD17;100 MD16;100 MD56;100 MD57;100 MD58;100 MD59;100 MD60;100 MD61;100 MD62;100 MD63;100 MD55;100 MD54;100 MD53;100 MD52;100 MD51;100 MD50;001 MD49;100 MD48;100 RAS5;000 CAS7;001 RAS2;000...
Page 191 PJ2 CRT Connector on the System Board (15-pin) Table C-2 CRT connector pin assignments on the System Board (15-pin) Pin No. Signal Name Pin No. Signal Name RED;100 LGREN;100 BULE;100 MNTID2;100 MNTID0;100 MNTID1;100 HSYNC;100 OVSYNC;100 MNTID3;100 PJ3 PCMCIA Connector on the System Board (152-pin) Table C-3 PCMCIA connector pin assignments on the System Board (152-pin) (1/3) Pin No.
Page 192 Table C-3 PCMCIA connector pin assignments on the System Board (152-pin) (2/3) Pin No. Signal Name Pin No. Signal Name BD15;100 BCE2;000 BVS1;100 BIORD;000 BIOWR;000 BA17;100 BA18;100 BA19;100 BA20;100 BA21;100 MCVCCB MCVP1B BA22;100 BA23;100 BA24;100 BA25;100 BVS2;100 BRESET;100 BWAIT;000 BINPCK;000 BREG;000 BSPKR;000 BTSCHG;000...
Page 193 Table C-3 PCMCIA connector pin assignments on the System Board (152-pin) (3/3) Pin No. Signal Name Pin No. Signal Name AAD13;100 AAD14;100 AAD15;100 ACE2;000 AVS1;100 AIORD;000 AIOWR;000 AA17;100 AA18;100 AA19;100 AA20;100 AA21;100 MCVCCA MCVP1B AA22;100 AA23;100 AA24;100 AA25;100 AVS2;100 ARESET;100 AWAIT;000 AINPCK;000 AREG;000...
Page 194 PJ5 Docking I/F Connector on the System Board (240-pin) Table C-4 Docking I/F connector pin assignments on the System Board (240-pin) (1/4) Pin No. Signal Name Pin No. Signal Name BOCDT1;000 DSKDC DSKDC DSKDC DSKDC PINIT;000 PDB01;100 PDB00;100 AUTFD;000 DAD08;100 DAD06;100 DAD04;100 DAD02;100...
Page 195 Table C-4 Docking I/F connector pin assignments on the System Board (240-pin) (2/4) Pin No. Signal Name Pin No. Signal Name DAD07;100 DAD05;100 DAD03;100 DAD01;100 DRST;000 DDEVSL;000 DPAR;100 DPERR;000 DIRDY;000 DCBE3;000 DCBE1;000 DIRQCK;100 DIRQD;000 DINTD;000 DGNT;000 EXKBCK;100 EXKBDT;100 MOSCK;100 DOCKEN;000 MOSDT;100 PCM2SP;100 LINEIL;000...
Page 196 Table C-4 Docking I/F connector pin assignments on the System Board (240-pin) (3/4) Pin No. Signal Name Pin No. Signal Name DAD22;100 DAD11;100 DAD10;100 DAD19;100 DAD09;100 DREQ;000 DCD1;100 SCL;100 RD1;000 SDA;100 DOCRI;100 CTS1;100 DSCREQ;000 DSCGNT;000 DTR1;100 DCPCLR;100 MNTID0;100 MNTID1;100 DSKCHG;000 MNTID2;100 JOYDT1;100 MNTID3;100...
Page 197 Table C-4 Docking I/F connector pin assignments on the System Board (240-pin) (4/4) Pin No. Signal Name Pin No. Signal Name DSR1;100 RTS1;100 SD1;000 SIRRXP;100 SIRTXP;000 HSYNC;100 OVSYNC;100 RED;100 LGREN;100 BLUE;100 DOCDT2;000 PJ8 Ext. FDD Connector on the System Board (26-pin) Table C-5 Ext.
Page 198 PJ9 Parallel I/F Connector on the System Board (25-pin) Table C-6 Parallel I/F connector pin assignments on the System Board (25-pin) Pin No. Signal Name Pin No. Signal Name STROB;000 PDB00;100 PDB01;100 PDB02;100 PDB03;100 PDB04;100 PDB05;100 PDB06;100 PDB07;100 ACK;000 BUSY;100 PE;100 SELECT;100 AUTFD;000...
Page 199 PJ15 Sound I/F (2) Connector on the System Board (80-pin) Table C-8 Sound I/F (2) connector pin assignments on the System Board (80-pin) (1/2) Pin No. Signal Name Pin No. Signal Name ALARM;100 ATBEEP;100 MOSDT;100 SPKVOL;100 SIRTX;100 SIRRXS;000 MOSCK;100 SNDMUT;010 EXKBOT;100 EXBCK;100 JOYIOR;000...
Page 200 Table C-8 Sound I/F (2) connector pin assignments on the System Board (80-pin) (2/2) Pin No. Signal Name Pin No. Signal Name DACKB;000 INCDLG;100 INCDRG;100 INCDL;100 INCDR;100 PJ703 LCD I/F Connector on the IPS Board (50-pin) Table C-9 LCD I/F connector pin assignments on the IPS Board (50-pin) Pin No.
Page 201 C.10 PJ705 FL Inverter I/F Connector on the IPS Board (8-pin) Table C-10 FL Inverter I/F connector pin assignments on the IPS Board (8-pin) Pin No. Signal Name Pin No. Signal Name DSPV DSPV BRIGHT;100 C.11 PJ706 Keyboard Connector on the IPS Board (25-pin) Table C-11 Keyboard connector pin assignments on the IPS Board (25-pin) Pin No.
Page 202 C.13 PJ708 Panel Sensor Connector on the IPS Board (2-pin) Table C-13 Panel sensor connector pin assignments on the IPS Board (2-pin) Pin No. Signal Name Pin No. Signal Name PNLOFF C.14 PJ2 HDD Connector on the Flexible Cable (60-pin) Table C-14 HDD connector pin assignments on the Flexible Cable (60-pin) Pin No.
Page 203 C.15 PJ3 Multibox I/F Connector on the Flexible Cable (80-pin) Table C-15 Multibox I/F connector pin assignments on the Flexible Cable (80-pin) (1/2) Pin No. Signal Name Pin No. Signal Name ISARST;002 HDSEL;000 TRK0;000 SD08;100 SD07;100 SD09;100 SD06;100 WGATE;000 SD10;100 SD05;100 SD11;100 SD04;100...
Page 204 Table C-15 Multibox I/F connector pin assignments on the Flexible Cable (80-pin) (2/2) Pin No. Signal Name Pin No. Signal Name CDRLED;000 INCDR;100 MBSTS1;100 INCDRG DENSEL;100 WP;000 ISARST;010 C-16 700 Series...
Page 205 Appendix D Keyboard Scan/Character Codes Table D-1 Scan codes (Sets 1 and 2) (1/3) Code set 1 Code set 2 Keytop Make Break Make Break Note ‘ & BkSp 29 (42) Caps Lock 700 Series...
Page 206 Table D-1 Scan codes (Sets 1 and 2) (2/3) Code set 1 Code set 2 Keytop Make Break Make Break Note ‘ “ Enter Shift (L) No.102 key , < . > Shift (R) Ctrl Alt (L) Space ALT (R) F0 11 F0 70 F0 71...
Page 207 Table D-1 Scan codes (Sets 1 and 2) (3/3) Code set 1 Code set 2 Keytop Make Break Make Break Note PrintSc Pause — — — — NOTES: 1* Scan codes differ by mode. 2* Scan codes differ by overlay function. 3* Combined with the Fn key, different codes are generated.
Page 208 Table D-2 Scan codes with the left Shift key Code set 1 Code set 2 Make Break Make Break E0 AA E0 52 E0 D2 E0 2A E0 F0 12 E0 70 E0 F0 70 E0 12 E0 AA E0 53 E0 D3 E0 2A E0 F0 12 E0 71 E0 F0 71 E0 12...
Page 209 Table D-4 Scan codes with the Fn key Code set 1 Code set 2 Keytop Make Break Make Break CTRL LALT ARROW NUMERIC Table D-5 Scan codes in overlay mode Code set 1 Code set 2 Keytop Make Break Make Break (≠) (–)
Page 210 Table D-7 Scan codes with the Alt key Code set 1 Code set 2 Shift Make Make Pause Common SD C5 F0 77 Ctrl* *: This key generates only make codes. 700 Series...
Page 211 Appendix E Key Layout United States (US) Keyboard Figure E-1 US keyboard United Kingdom (UK) Keyboard Figure E-2 UK keyboard 700 Series...
Page 212 German (GR) Keyboard Figure E-3 GR keyboard French (FR) Keyboard Figure E-4 FR keyboard 700 Series...
Page 213 Spanish (SP) Keyboard Figure E-5 SP keyboard Italian (IT) Keyboard Figure E-6 IT keyboard 700 Series...
Page 214 Scandinavian (SC) Keyboard Figure E-7 SC keyboard Swiss-German (SL) Keyboard Figure E-8 SL keyboard 700 Series...
Page 215: Appendix F Wiring Diagrams
Appendix F Wiring Diagrams Printer Wraparound Connector (9) +PD7 (15) –ERROR (8) +PD6 (14) –AUTFD (7) +PD5 (13) +SELECT (6) +PD4 (16) –PINIT (5) +PD3 –STROBE (10) –ACK (4) +PD2 (12) (3) +PD1 (17) –SLIN (2) +PD0 (11) +BUSY Figure F-1 Printer wraparound connector RS-232-C Wraparound Connector (3) TD (7) RTS...
Page 216 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) 700 Series...
Page 217 Appendix G BIOS Rewrite Procedures This Appendix explains how to rewrite the system BIOS program to update the BIOS on the 700 Series computer. Tools To rewrite the BIOS, the following tool is required: BIOS rewrite disk for the 700 Series computer Rewriting the BIOS NOTE: On the 700CT, install an external FDD if the computer has an internal CD- ROM drive.
Page 218 700 Series...

This manual is also suitable for:

Tecra 700ct

Toshiba Tecra 700CS Maintenance Manual

Quick Links

Troubleshooting

Related Manuals for Toshiba Tecra 700CS

Summary of Contents for Toshiba Tecra 700CS

This manual is also suitable for:

Table of Contents