Page 1 TOSHIBA 430 Series PN: 430-9400 CASM-2970307-B00...
Page 2 (LIM-EMS). Display The 430CDT has an 11.3-inch, Thin Film Transistor (TFT) color LCD with 800 x 600 pixels. The 430CDS has an 11.3-inch Dual-scan Supertwist Nematic (DSTN) color LCD with 800 x 600 pixels. The built-in display controller supports 800 x 600 resolution with 16M colors capability and up to 1280 x 1024 resolution with 256 colors on an external CRT.
Page 3 Expansion memory slot An optional 8, 16, or 32 MB memory module can be installed in the memory slot. Parallel port Can be used to connect a Centronics compatible printer or other parallel device. The port supports ECP (Extended Capabilities Port) conforming to IEEE·1284. Serial port (9-pin) The serial controller is 16550UART compatible.
Page 4 Sound System A Sound Blaster Pro compatible sound system provides capability to record sound and play it back with a built-in microphone and speaker. The sound system is equipped with a volume control dial, headphone jack, microphone jack, and audio line-in jack.
Page 5: System Unit Block Diagram
System Unit Block Diagram Figure 1-3 is a block diagram of the 430 series system unit. Figure 1-3 430 series system board block diagram 430 Series...
Page 6 The 430 series system board is composed of the following major components: Microprocessor One Intel Pentium processor with VRT 64-bit microprocessor Intel Pentium processor which operates at 120 MHz and 3.3/2.9 volts. Standard RAM 16 MB, eight 1Mx16-bit chips 3.3 volt operation No parity bit Access time 60 ns Data transfer is 64-bit width...
Page 7 System Controller Gate Array (SCPCNT-GA) This gate array has the following functions: • CPU control - SMI control - CPU clock control • Memory control - 64-bit bus memory control - 32-bit bus memory control • Bus control - 64-bit data bus <==>32-bit data bus - 32-bit local bus control •...
Page 8 Video Controller Chips & Technologies F65550 is used. This video controller controls internal TFT/DSTN color LCD and external SVGA compatible CRT. Keyboard Controller (KBC) One M38802M4 chip is used. This KBC includes the keyboard scan controller and keyboard interface controller. The KBC controls the internal keyboard, external keyboard, and PS/2 mouse.
Page 9: Inch Floppy Disk Drive
3.5-inch Floppy Disk Drive The 430 series 3.5-inch removable FDD is a thin, high-performance reliable drive that sup- ports 720-KB (formatted) 2DD and 1.44-MB (formatted) 2HD disks. When a CD-ROM is installed in the Selectable Bay, an FDD attachment can be used to connect the FDD to an external FDD port.
Page 10: Inch Hard Disk Drive
2.5-inch magnetic disk and mini-winchester type magnetic heads. The 430 series supports the 1.3 billion byte (1.26GB) HDD which is shown in Figure 1-5. Figure 1-5 2.5-inch HDD Specifications for the HDD are listed in Table 1-2. Table 1-2 2.5-inch HDD specifications Toshiba Seagate Items MK1301MAV DMCA-21440...
Page 11 Keyboard The 82-(USA) or 84-(European) key keyboard is mounted on the 430 series system unit. The keyboard is connected to the keyboard controller on the system board through a 25-pin flat cable. 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 12: Cd-Rom Drive
CD-ROM Drive The 430 series internal CD-ROM drive accommodates either 12 cm (4.72-inch) or 8 cm (3.15-inch) CDs. It provides high-performance, ten-speed play (reads about 1,500KB per second). This drive supports the following formats: Audio CD Photo CD ISO 9660 CD Plus The CD-ROM drive is shown in Figure 1-7.
Page 13 DSTN Color LCD (430CDS) The DSTN Color Liquid Crystal Display (LCD) contains an LCD module, a Fluorescent Lamp (FL), and an FL inverter board. 1.7.1 DSTN Color LCD Module The DSTN color LCD is backlit and supports 800x600 pixels with built-in display controller. This controller includes the functions of Video Graphics Array (VGA) and Super VGA (SVGA) for external display.
Page 14 1.7.2 DSTN Color Fluorescent Lamp (FL) Inverter Board The FL inverter board supplies high frequency current to light the LCD Fluorescent Lamp. The specifications for the FL inverter are listed in Table 1-5. Table 1-5 DSTN color FL inverter board specifications Item Specifications Input...
Page 15 TFT Color LCD (430CDT) The TFT Color Liquid Crystal Display (LCD) contains an LCD module, a Fluorescent Lamp (FL), and an FL inverter board. 1.8.1 TFT Color LCD Module The TFT color LCD is backlit and supports 800x600 pixels with built-in display controller.
Page 16 1.8.2 TFT Color Fluorescent Lamp (FL) Inverter Board The FL inverter board supplies high frequency current to light the LCD Fluorescent Lamp. The specifications for the FL inverter are listed in Table 1-7. Table 1-7 TFT color FL inverter board specifications Item Specifications Input...
Page 17: Power Supply
Power Supply The power supply provides five kinds of voltages to the 430 series system board. The power supply has one microprocessor, operates at 500 KHz, and performs the following functions: Determines if the AC cable or battery is connected to the computer. Detects AC output and circuit malfunctions.
Page 18: Main Battery
1.10 Batteries The 430 series has three types of batteries: Main battery pack Backup battery Real Time Clock (RTC) battery Battery specifications are listed in Table 1-9. Table 1-9 Battery specifications Battery name Material Output voltage Capacity Main battery Lithium-Ion 10.8 V 3,600 mAH Backup battery...
Page 19: Backup Battery
Quick Battery Charge When the AC power cord is attached, there are two types of charge: quick charge when the system is powered off and trickle charge when the system is powered on. Table 1-10 Time required for quick charges Charging time Power off About 2 to 3 hours...
Page 20: Rtc Battery
1.10.4 RTC Battery The RTC battery provides power to keep the current date, time, and other setup information in memory while the computer is turned off. Table 1-12 shows the charging time and data preservation period of the RTC battery. Table 1-12 RTC battery charging/data preservation time Time Charging Time...
Page 21: Troubleshooting
PS/2 or compatible keyboard PS/2 or compatible mouse PC card wraparound card Multimedia sound system with line-in and line-out ports Headphone Toshiba EMI test disk TDY-03 Music CD Serial Port Wraparound Connector CD-ROM Drive Lens cleaner for CD-ROM laser pickup lens...
Page 22: Troubleshooting Flowchart
The computer will override the password function by erasing the current pass- word. Verify with the customer that Toshiba MS-DOS 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.
Page 23 Figure 2-1 Troubleshooting flowchart 430 Series...
Page 24 Figure 2-1 Troubleshooting flowchart (Continued) 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, or real timer test perform the system board troubleshooting procedures...
Page 25: Power Supply Troubleshooting
Power Supply Troubleshooting The power supply controls many functions and components in the 430 series. 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 Icon Check Procedure 2:...
Page 26 Procedure 2 Battery Icon Check The Battery icon shows the battery charging status. The Battery icon glows orange when the AC power cord is charging the battery pack. If the Battery icon glows green, the AC power cord is connected and the battery is fully charged.
Page 27: System Board And Sound Board Troubleshooting
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 these error messages displays on the screen, press the F1 key as the message instructs.
Page 28 If you press the F1 key as the message instructs, the TSETUP screen appears to set the system configuration. If error message (b) appears often when the power is turned on, replace the RTC battery. If any other error message displays, per- form Check 2.
Page 29 If error message (24) or (25) is displayed, go to the FDD Troubleshooting Proce- dures in Section 2.5. BIOS is damaged PIT ERROR MEMORY REFRESH ERROR TIMER CH.2 OUT ERROR FIRST 64KB MEMORY ERROR CMOS CHECKSUM ERROR CMOS BAD BATTERY ERROR FIRST 64KB MEMORY ERROR FIRST 64KB MEMORY PARITY ERROR (10)
Page 30: Procedure 2 Printer Port Led Check On Boot Mode
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 power, then set to boot mode.
Page 31 Table 2-1 Printer port LED boot mode status LED status Test item Message KBC initialization ROM checksum test BIOS is damaged! ..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...
Page 32 Table 2-1 Printer port LED boot mode status (Continued) LED status Test item Message Initialization of expansion ROM — Password check — Setup boot check *** Bad xxxx xxxx *** Check system. Then press [F1] key. Boot load — Check 1 If the following error codes are displayed, go to Procedure 5.
Page 33: Procedure 4 Diagnostic Test Program Execution Check
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 Procedure 4 Diagnostic Test Program Execution Check Execute the following tests from the Diagnostic Test Menu.
Page 34: Floppy Disk Drive Troubleshooting
FDD head cleaning is one option available in the Diagnostic Program. Detailed operation is given in Chapter 3, Tests and Diagnostics. After Toshiba MS-DOS loads, run the Diagnostic Program and then clean the FDD heads using the cleaning kit. If the FDD still does not function properly after cleaning, go to Proce- dure 2.
Page 35: Diagnostic Test Program Execution Check
Diagnostic Test Program Execution Check The Floppy Disk Drive Diagnostic Test program is stored on the 430 series Diagnostics Disk. After loading Toshiba MS-DOS, run the diagnostic program. Refer to Chapter 3, Tests and Diagnostics, for more information about the diagnostics test procedures.
Page 36: Procedure 3 Connector Check And Replacement Check
Procedure 3 Connector Check and Replacement Check The 3.5-inch Floppy Disk Drive is connected to the FDD port by the FDD cable. This cable may be damaged or disconnected from the external 3.5-inch FDD port. Do the following checks: Check 1 Make sure the FDD cable is firmly connected to the FDD port.
Page 37: Hard Disk Drive Troubleshooting
Refer to the operating system instructions for more information. 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 38: Procedure 2 Message Check
Non-System disk or disk error Replace and press any key Check 3 Using the Toshiba MS-DOS system disk, install a system program on the hard disk using the SYS command. If the following message appears on the display, the system program has been transferred to the HDD.
Page 39: Procedure 3 Format Check
HDD. If the following message appears on the display, the HDD is formatted. Format complete If any other error message appears on the display, refer to the Toshiba MS-DOS Manual for more information and perform Check 2. Check 2 Using the 430 series Diagnostic Disk, format the HDD with a low level format option.
Page 40 Procedure 4 Diagnostic Test Program Execution Check The HDD test program is stored on the 430 series 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 41: Keyboard Troubleshooting
Keyboard Troubleshooting To determine if the 430 series keyboard is functioning properly, perform the following procedures. Start with Procedure 1 and continue with the other procedure 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 42: Display And Vga Board Troubleshooting
The Display Test program is stored on the 430 series Diagnostics Disk. This program checks the display controller on the VGA board. After loading Toshiba MS-DOS, run the Diagnos- tic Program. Refer to Chapter 3, Tests and Diagnostics, for details.
Page 43: Connector Check
Replacement Procedures, for more information about how to disassemble the computer. Figure 2-3 430CDS display connection Figure 2-4 430CDT display connection Firmly reconnect any cable which has become disconnected, then repeat Procedures 1 and 2. If the problem still exists, perform Procedure 5.
Page 44 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 Proce- dures, for instructions on how to disassemble the computer and then perform the following checks: If the FL does not light, perform Check 1.
Page 45: Cd-Rom Drive Troubleshooting
After Toshiba MS-DOS loads, run the diagnostic program stored on the Diagnostics Disk. Insert a test CD (Toshiba-EMI Test Disc TDY-03) into the CD-ROM drive and run the test. Refer to Chapter 3, Tests and Diagnostics, for more information about the diagnostics test procedures.
Page 46: 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 nine programs that are grouped into the Service Program Module (DIAG- NOSTICS MENU).
Page 47 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 test) A CD test media (Toshiba-EMI test disk TDY-03 and music CD) (CD-ROM test) External CRT (All tests) PS/2 or compatible keyboard (All tests)
Page 48: Executing The Diagnostic Test
Executing the Diagnostic Test Toshiba MS-DOS is required to run the DIAGNOSTICS PROGRAM. To start the DIAG- NOSTIC PROGRAM follow these steps: Insert the Diagnostics disk in the floppy disk drive and turn on the computer. The Diagnostics disk contains the MS-DOS boot files.
Page 49 To select the DIAGNOSTIC TEST MENU from the DIAGNOSTICS MENU, set the highlight bar to 1, and press Enter. The following screen will appear: TOSHIBA personal computer xxx DIAGNOSTICS version X.XX (c) copyright TOSHIBA Corp. 19XX DIAGNOSTIC TEST MENU : 1 - SYSTEM TEST...
Page 50 Select the desired subtest number from the subtest menu and press Enter. The following message will appear: TEST LOOP : YES ERROR STOP : YES Selecting YES for TEST LOOP sets the test to run continuously until it is halted by the user.
Page 51: 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 Test name Subtest No. Subtest item SYSTEM ROM checksum Fan ON/OFF Thermistor check MEMORY RAM constant data RAM address pattern data RAM refresh Protected mode Memory module...
Page 52 Table 3-1 Subtest names (Continued) Test name Subtest No. Subtest item ASYNC Wraparound (board) Board(#1) <=> board(#2) Point to point (send) Point to point (receive) Interrupt test Infra_red Wrap_around test Infra_red Transmit mode Infra_red Receive mode Sequential read Address uniqueness Random address/data Cross talk &...
Page 53: 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 This subtest executes a checksum test of the BIOS ROM on the system board.
Page 54: 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 RAM constant data This subtest writes a 256-byte unit of constant data to conventional memory (0 to 640 KB).
Page 55 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 8MB, 16MB, and 32MB. After selecting subtest 05, the following message will appear: Extended memory size (1:8 MB,2:16 MB,3:32 MB)?
Page 56: 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 keyboard, PS/2 mouse, and AccuPoint actions. Move the highlight bar to the subtest you want to execute and press Enter.
Page 57 Subtest 02 Pressed keycode display When a key is pressed, the scan code, character code, and keytop 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 58 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 59: 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 six subtests that test the display in various modes. Move the highlight bar to the subtest you want to execute and press Enter.
Page 60 Subtest 04 Gradation & Mode test for VGA This subtest displays gradations for each mode. Execute the test, then press Enter to change the mode. LCD type Mode 3, 12, 13, 43, 52 DSTN 3, 12, 13, 43 The display below appears on the screen when this subtest is executed. Pressing Enter changes the size of the displayed image.
Page 61 Pressing Enter changes the size of the displayed image. Pressing Enter changes the size of the displayed image. Pressing Enter changes the size of the displayed image. To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break.
Page 62 Subtest 06 “H” pattern display This subtest displays a full screen of “H” patterns. HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break.
Page 63: Floppy Disk Test
Floppy Disk Test NOTE: Before running the floppy disk test, prepare a formatted work disk. Remove the Diagnostics Disk and insert a 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 64 Subtest 01 Sequential Read This subtest performs a Cyclic Redundancy Check (CRC), that continuously reads all the tracks on a floppy disk. The following tracks are read according to the media type in the floppy disk drive: Double-sided, double-density (2D): Tracks 0 to 39. Double-sided, double-density, double-track (2DD) and double-sided, high-density, double-track (2HD): Tracks 0 to 79.
Page 65: 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 66 This subtest prints the various print types shown below: PRINTER TEST THIS LINE SHOWS NORMAL PRINT. THIS LINE SHOWS DOUBLE-WIDTH PRINT. THIS LINE SHOWS COMPRESSED PRINT. T H I S L I N E S H O W S E M P H A S I Z E D P R I N T .
Page 67: 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 eight subtests that test the asynchronous communication functions. Move the highlight bar to the subtest you want to execute and press Enter.
Page 68 Subtest 03 Point to point (Send) NOTE: To execute this subtest, two machines must be connected with an RS-232-C direct cable. One machine should be set as “send”(subtest 03) and the other set as “receive” (subtest 04). The wiring diagram for the RS-232-C direct cable is described in Appendix F.
Page 69: Hard Disk Test
1. If MS-DOS 6.22/Windows for Workgroups is selected, use the Master Diskette Creator (MDC) utility in the Toshiba Utility folder to back up the preinstalled software. After backing up the preinstalled software, use the BACKUP command in the Toshiba Companion Utility to back up the entire disk, including the user's files.
Page 70 The HDD status is described in section 3.18. Select 1 or 2 and press Enter. The Hard Disk Test message will appear after you respond to the Detail Status prompt. Select the number of the subtest you want to execute and press Enter. The following message will appear during each subtest.
Page 71 Subtest 04 Cross Talk & Peak Shift This subtest writes eight types of worst pattern data (shown below) to a cylin- der, then reads the data while moving from cylinder to cylinder. Worst pattern data Cylinder ‘B5ADAD’ 0 cylinder ‘4A5252’ 1 cylinder ‘EB6DB6’...
Page 72: 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 73 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 : 12-31-1995 Current time : 23:59:58 Pressing Enter displays the following: Current date : 01-01-1996...
Page 74: Ndp Test
3.13 NDP Test To execute the NDP test, select 10 from the DIAGNOSTICS TEST MENU, press Enter and follow the directions on the screen. The NDP test contains one subtest that tests the computer’s NDP functions. Subtest 01 This test checks the following functions of the coprocessor: Control word Status word Addition...
Page 75: Expansion Test
3.14 Expansion Test To execute the expansion test, select 11 from the DIAGNOSTICS TEST MENU, press Enter and follow the directions on the screen. The expansion test contains two subtests. NOTE: To execute this subtest, the PC card wraparound connector is required. Subtest 01 PCMCIA wraparound (Internal) This test checks the following signal line of the PC card slot:...
Page 76: Sound Test
3.15 Sound Test To execute the sound test, select 12 from the DIAGNOSTICS TEST MENU, press Enter and follow the directions on the screen. The sound test contains six 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 77 Subtest 05 Joystick/MIDI wraparound Conduct a wraparound test on the joystick/MIDI port. Subtest 06 Codec (Line In/Out) 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.
Page 78 200 times. Subtest 04 Playback Music NOTE: The Toshiba-EMI Test Disk TDY-03 cannot be used for Subtest 04. For this test, use an ordinary music CD. This subtest reads track data from a specified track and plays the sound. 3-33...
Page 79: Error Code And Error Status Names
3.17 Error Code and Error Status Names Table 3-2 lists the error codes and error status names for the Diagnostic Test. Table 3-2 Error codes and error status names Device name Error code Error status name (Common) Data Compare Error System ROM Checksum Error Memory...
Page 80 Table 3-2 Error codes and error status names (Continued) Device name Error code Error status name ASYNC (cont.) TX-BUFFER Full Time Out Parity Error 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...
Page 81 Table 3-2 Error codes and error status names (Continued) 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 82: 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 83 Table 3-4 Error register contents Name Description BBK1 “0” Not used (Bad block “1” A bad block mark is detected. mark) “0” There is no uncorrectable data error. (Uncorrectable) “1” Uncorrectable data error has been detected. —— Not used IDNF “0”...
Page 84: Hard Disk Format
Creator (MDC) utility in the Toshiba Utility folder to back up the preinstalled software. After backing up the preinstalled software, use the BACKUP com- mand in the Toshiba Companion Utility to back up the entire disk, including the user's files.
Page 85 Table 3-5 below: NOTE: Before executing the all track format option, check for bad tracks using the Bad Track CHECK option or display a list of bad tracks on the HDD. Table 3-5 Hard disk formatting sequence Toshiba Seagate Items MK1301MAV DMCA-21440...
Page 86 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 mes- sages: DIAGNOSTICS - HARD DISK FORMAT : VX.XX...
Page 87 Bad track register Next, the Bad Track register prompt will appear as shown below. Enter the cylinder and head numbers of bad tracks and press Enter. Note that if there are no bad tracks, pressing Enter alone is the same as executing All Track Format described in item (d) below.
Page 88 Bad track FORMAT To format a track as a bad track, enter the number for drive, interleave, cylinder, and head as indicated in the screen prompt shown below. Drive number select (1:#1, 2:#2) ? Interleave number (1 / 1 - 8) ? Press [Cylinder number (dddd)] ? Press [Head number (dd)] ? Press Enter to return to the Hard Disk Format menu.
Page 89: 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 Selecting test 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 90: 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 91 The error information displayed on the screen can be manipulated by the follow- ing number keys: The 1 key scrolls the display to the next page. The 2 key scrolls the display to the previous page. The 3 key returns to the Diagnostic Menu. The 4 key erases all error log information in RAM.
Page 92: Running Test
3.22 Running Test 3.22.1 Function Description This function automatically executes the following tests in sequence: System test (subtest number 01) Memory test (subtest number 01, 02, 04, 06) Display test (subtest number 01, 03, 05) FDD test (subtest number 02) HDD test (subtest number 01, 05) Real timer test (subtest number 02) Printer test (subtest number 03) if selected...
Page 93 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.] This program is executed continuously. To terminate the program, press Ctrl + Break.
Page 94: Floppy Disk Drive Utilities
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 as follows: 2D: Double-sided, double-density, 48/67.5 TPI, MFM mode, 512 bytes, 9 sectors/track.
Page 95 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. Insert work disk into drive A: Press any key when ready.
Page 96 Remove the source disk from the FDD, insert a formatted work disk and press any key. The [[ track, head = XXX X ]] message will appear and start copying to the target disk. When the amount of data is too large to be copied in one operation, the message from step (b) is displayed again.
Page 97: System Configuration
3.24 System Configuration 3.24.1 Function Description The System Configuration program contains the following configuration information for the computer: BIOS ROM version Boot ROM version KBC version PS microprocessor version Base memory size The number of floppy disk drives The number of ASYNC ports The number of hard disk drives The number of printer ports Extended memory size...
Page 98 3.25 SETUP 3.25.1 Function Description This program displays the current system setup information as listed below: Memory Total Base Extended Memory Shadow BIOS ROM Display Display Adapter LCD Display Mode VGA Segment Address LCD Display Colors Power On Display Text Mode Stretch Hard Disk HDD Mode Password...
Page 99: Accessing The Setup Program
3.25.2 Accessing the SETUP Program Selecting 0 from the DIAGNOSTICS MENU and pressing Enter displays the following: SYSTEM SETUP BIOS version = x.xx MEMORY I/O PORTS Total = 16384 KB Serial Port COM1(3F8H/IRQ4) Base 640 KB Infrared Port = Not Used Extended = 15552 KB Parallel Port =...
Page 100: Setup Options
To make other changes, press N. Repeat the steps above. To accept the changes, press Y. NOTE: You can press Esc to quit at any time without saving changes. SETUP asks you to confirm that you don’t want to save your changes. 3.25.5 The Factory Preset Configuration When you access SETUP, the current configuration is displayed.
Page 101 Shadow BIOS ROM Displays 192 KB of RAM, which is reserved for the Shadow BIOS ROM. The value cannot be changed. Display This option configures the computer’s display. Display Adapter This field displays the internal controller for the VGA internal display. Only VGA compatible is displayed.
Page 102 NOTE: If the DSTN screen flickers with an LCD Display Colors setting of 222K Colors, select 4096 Colors. Power On Display This option is used to select the display when booting up. Internal/External Selects an external CRT if one is connected, other- wise it selects the internal LCD.
Page 103 NOTE: Formats for Enhanced IDE and Standard IDE are different, so if you change the setting, you will have to reformat the hard disk for the appropri- ate setting. Password This option allows you to set or reset the user password for power on and instant security.
Page 104 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 COM2 2F8h COM3 3E8h 3E8h 3E8h COM4 2E8h 2E8h 2E8h Not used (Disables port) (Infrared port default) NOTE: If the setting for the infrared port is the same as that for the serial port, the serial port is automatically set to disabled.
Page 105 Sound system This item allows you to enable or disable the sound card ports. Address/IRQ/DMA Enables port (Default) Disabled Disables 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 106: Full Power
Full Power The following shows full power settings. BATTERY SAVE OPTIONS Processing Speed High CPU Sleep Mode Enabled Display Auto Off Disabled (430CDS) 30 Min. (430CDT) HDD Auto Off 30 Min. System Auto Off Disabled LCD Brightness Bright Cooling Method Performance Low Power The following shows low power settings.
Page 107 NOTE: In boot mode, the System Auto Off message does not appear. User Setting This option allows you to set the battery save param- eters on the sub-window, BATTERY SAVE OP- TIONS. When you select this option, the automatic setting feature (Full Power or Low Power) is disabled and the user-preferred parameters become effective.
Page 108 HDD Auto Off Use this option to disable or set the duration of the HDD automatic power off function. Disabled Disables display automatic power off. xx Min. Automatically turns off power to the hard disk drive if it is not used for the duration set. The duration xx can be set to 1, 3, 5, 10, 15, 20, or 30 minutes.
Page 109 Disables the alarm. Sets the alarm volume to low. Medium Sets the alarm volume to medium. High Sets the alarm volume to high. (Default) When Alarm Volume is selected, the subwindow below is displayed to let you enable or disable certain functions. ALARM VOLUME OPTIONS Low BATTERY Alarm Enabled...
Page 110 00:00:00 Sets the power on time (24-hour clock). Disabled Disables the alarm. NOTE: Do not remove the AC cable and battery pack at the same time when you use this feature. If you do so, the setting will be lost. You must reset this option when you restore power.
Page 111 Pointing Devices Enables or disables the AccuPoint. Auto selected The AccuPoint is disabled when a PS/2 mouse is connected, otherwise the AccuPoint is enabled. (Default) Simultaneous If a PS/2 mouse is connected, both the AccuPoint and the external mouse are enabled. Boot Priority Use this option to select the disk drive priority for boot up.
Page 112 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 lines on the chart to determine which FRU you must remove next in order to repair the one you think is causing the computer to operate improperly.
Page 113: Safety Precautions
DANGER: 1. Always use the 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. Heating or disassembling the battery pack could cause leakage of alkaline solution.
Page 114: Before You Begin
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 cord and the battery pack as instructed in section 4.2, Battery Pack. Do not disassemble the computer unless it is operating abnormally.
Page 115: Disassembly Procedures
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 plastic pressure plate and slide the cable out of the connector. To connect the cable to a Pressure Plate connector, make sure the pressure plate is fully lifted and slide the cable into the connector.
Page 116: Tools And Equipment
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 117: Removing The Battery Pack
Pull back the battery latch and lift out the battery pack. Figure 4-2 Removing the battery pack NOTE: For environmental reasons, do not throw away a spent battery pack. Please return spent battery packs to your Toshiba dealer. 430 Series...
Page 118: Installing The Battery Pack
WARNING: The battery is a lithium ion battery and should be replaced only by your dealer or by a Toshiba service representative. The battery can explode if not properly replaced, used, handled or disposed of. Dispose of the battery as required by local ordinances or regulations.
Page 119: Removing An Optional Pc Card
Optional PC Card Removing an Optional PC Card To remove an optional PC 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. Disconnect the AC power cord and all external cables connected to the computer.
Page 120: Installing An Optional Pc Card
Installing an Optional PC Card To install an optional PC card, follow the steps below and refer to Figure 4-5. NOTE: Before you install the PC card, make sure the computer is in boot mode. Turn off the power to the computer. Disconnect the AC power cord and all external cables connected to the computer.
Page 121: 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 4-6 and 4-7. Turn off the power to the computer. Disconnect the AC power cord and all external cables connected to the computer.
Page 122 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 4-8 back to 4-6. Position the connector on the bottom of the module over the corresponding connector on the computer (align the holes on the side of the module over the screw holes on the brace).
Page 123: Floppy Disk Drive (Fdd)
Floppy Disk Drive (FDD) Removing the FDD To remove the FDD, follow the steps below and refer to Figures 4-10 to 4-13. Turn off the power to the computer. Disconnect the AC power cord and all external cables connected to the computer. Remove the battery pack, optional PC card, and optional memory module as described in Sections 4.2, 4.3, and 4.4.
Page 124 Remove six M2x6 screws and take off the upper plastic cover. Figure 4-11 Removing the screws Release four latches, lift off the plate, and remove the lower plastic cover. Figure 4-12 Removing the plate 4-13 430 Series...
Page 125 Disconnect the flexible cable. Remove four M2x3 screws and remove the FDD from the bracket. Figure 4-13 Removing the FDD Installing the FDD To install the FDD, follow the steps below and refer to Figures 4-13 back to 4-10. Seat the FDD in the metal bracket and secure four M2x3 screws. Connect the flexible cable.
Page 126: Removing The Cd-Rom Drive
CD-ROM Drive Removing the CD-ROM Drive To remove the CD-ROM drive, follow the steps below and refer to Figures 4-14 and 4-15. Turn off the power to the computer. Disconnect the AC power cord and all external cables connected to the computer. Remove the battery pack, optional PC card, and optional memory module as described in Sections 4.2, 4.3, and 4.4.
Page 127 Remove four M2x3 screws and three M2x6 screws securing the frame to the CD-ROM drive. Figure 4-15 Removing the screws Release two latches and remove the front cover. Disconnect the flexible cable from the drive. Hold unit with the drive door facing away and push forward with thumbs to slide the drive out of the case.
Page 128: Installing The Cd-Rom Drive
Installing the CD-ROM Drive To install the CD-ROM drive, follow the steps below and refer to Figures 4-15 and 4-14. Push the CD-ROM drive fully into the case. Connect the flexible cable to the drive. Replace the front cover and press firmly to engage latches. Secure the frame to the drive with four M2x3 screws and three M2x6 screws.
Page 129: Hard Disk Drive (Hdd)
Hard Disk Drive (HDD) Removing the HDD To remove the HDD drive, follow the steps below and refer to Figures 4-16 and 4-17. Turn off the power to the computer. Disconnect the AC power cord and all external cables connected to the computer. Remove the battery pack, optional PC card, optional memory module and FDD or CD-ROM drive as described in Sections 4.2 through 4.6.
Page 130 Remove four flat-head M3x4 screws securing the frame to the HDD and separate the HDD from the frame. Figure 4-17 Removing the HDD from the frame Installing the HDD Drive To install the HDD drive, follow the steps below and refer to Figures 4-17 and 4-16. Secure the frame to the HDD with four flat-head M3x4 screws.
Page 131: Removing The Keyboard
Keyboard Removing the Keyboard To remove the keyboard, follow the steps below and refer to Figures 4-18 to 4-20. Turn off the power to the computer. Disconnect the AC power cord and all external cables connected to the computer. Remove the battery pack, optional PC card, optional memory module, FDD or CD-ROM drive and HDD as described in Sections 4.2 through 4.7.
Page 132 Remove three M2.5x6 screws securing the metal cover and lift out the metal cover. Figure 4-19 Removing the metal cover Disconnect the keyboard cable from PJ13 on the system board and lift out the keyboard. Figure 4-20 Removing the keyboard NOTE: If the unit under repair has a keyboard connector cover that slides along the keyboard cable, then pull out the keyboard connector cover from the keyboard cable at this point.
Page 133: Installing The Keyboard
Installing the Keyboard To install the keyboard, follow the steps below and refer to Figures 4-21 back to 4-18. Connect the keyboard cable to PJ13 on the system board. Make sure the cable connection is secure. Fit the two tabs of the metal cover into the top cover and backup battery base (see Figure 4-21), then seat the metal cover and secure it with three M2.5x6 screws.
Page 134: Sub-Battery And Vga Board
Disconnect the sub-battery cable from PJ503 and remove the 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.
Page 135 Remove two tapes and disconnect the microphone cable from PJ3 on the sound board. Figure 4-23 Disconnecting the microphone cable Disconnect the VGA board from system board connector PJ16. Figure 4-24 Disconnecting the VGA board 4-24 430 Series...
Page 136 Rotate the VGA board out and disconnect the VGA cables from PJ302 and PJ303 (TFT model only) on the VGA board. Figure 4-25 Disconnecting the cables from the VGA board Installing the Sub-Battery and VGA Board To install the sub-battery and VGA board, follow the steps below and refer to Figures 4-26 back to 4-22.
Page 137 Use a multimeter to measure the TP2 (+) and ground voltage according to the following value. 6.0 V to 8.0 V If the voltage is too low, replace the sub-battery with a new one. Figure 4-26 Measuring the voltage at TP2 Install the keyboard, HDD, FDD or CD-ROM drive, optional memory module, optional PC card, and battery pack as described in Sections 4.7 back through 4.2.
Page 138: Rtc Battery And Top Cover With Display Assembly
4.10 RTC Battery and Top Cover with Display Assembly Removing the RTC Battery and Top Cover with Display Assembly To remove the RTC battery and top cover with display assembly, follow the steps below and refer to Figures 4-27 to 4-29. Turn off the power to the computer.
Page 139 WARNING: If you replace the RTC battery, be sure to use only batteries recommended by Toshiba. Installation of the wrong battery can cause the battery to explode or otherwise cause damage. Figure 4-28 Removing the RTC battery Disconnect the panel close sensor cable from PJ10.
Page 140 Installing the RTC Battery and Top Cover with Display Assembly To install the RTC battery and top cover with display assembly, follow the steps below and refer to Figures 4-30 back to 4-27. Seat the top cover and display assembly then secure two latches at the back of the computer and four latches at the front.
Page 141: Sound Board And Membrane Switch
4.11 Sound Board and Membrane Switch Removing the Sound Board and Membrane Switch To remove the sound board and membrane switch, follow the steps below and refer to Figures 4-31 to 4-33. Turn off the power to the computer. Disconnect the AC power cord and all external cables connected to the computer.
Page 142 Remove the tape from the speaker cable and disconnect the speaker cable from PJ6 on the sound board. Disconnect the sound board power cable from PJ9 on the sound board. Disconnect the CD-ROM sound cable from PJ11 on the sound board. Press up on the sound board flexible cable evenly to disconnect it from PJ7 on the system board.
Page 143 Installing the Sound Board and Membrane Switch To install the sound board and membrane switch, follow the steps below and refer to Figures 4-33 back to 4-31. Align holes in the membrane switch with corresponding holes on the sound board. Connect the cable to PJ10, and secure it with tape. Attach the audio jack cover.
Page 144: Removing The Speaker
4.12 Speaker Removing the Speaker To remove the speaker, follow the steps below and refer to Figures 4-34 and 4-35. Turn off the power to the computer. Disconnect the AC power cord and all external cables connected to the computer. Remove the battery pack, optional PC card, optional memory module, FDD or CD-ROM drive, HDD, keyboard, sub-battery, VGA board, RTC battery, top cover with display assembly and sound board as described in Sections 4.2 through 4.11.
Page 145: Installing The Speaker
Remove one M2.5x4 screw securing the speaker and its brace. Figure 4-35 Removing the speaker Installing the Speaker To install the speaker, follow the steps below and refer to Figures 4-35 and 4-34. Seat the speaker in the speaker brace and secure it with one M2.5x4 screw. Seat the speaker assembly and secure it to the computer with one M2.5x6 screw.
Page 146 4.13 AC PS Unit Removing the AC PS Unit To remove the AC PS unit, follow the steps below and refer to Figures 4-36 and 4-37. Turn off the power to the computer. Disconnect the AC power cord and all external cables connected to the computer.
Page 147 Remove two M2.5x6 screws securing the holder assembly and plastic cover, then lift out the assembly. Lift the power cord socket straight up until it clears its slots and remove the AC PS unit. Figure 4-37 Removing the holder assembly and power cord socket Installing the AC PS Unit To install the AC PS unit, follow the steps below and refer to Figures 4-37 and 4-36.
Page 148: Removing The Infrared Board
4.14 Infrared Board Removing the Infrared Board To remove the infrared board, follow the steps below and refer to Figure 4-38. Turn off the power to the computer. Disconnect the AC power cord and all external cables connected to the computer. Remove the battery pack, optional PC card, optional memory module, FDD or CD-ROM drive, HDD, keyboard, sub-battery, VGA board, RTC battery, top cover with display assembly, sound board, speaker and AC PS unit as described in...
Page 149 Installing the Infrared Board To install the infrared board, follow the steps below and refer to Figure 4-38. Replace the tape and connect the infrared board cable (inner harness) to PJ17 on the system board. Connect the infrared board cable to PJ101. Slide the infrared board into its notch on the computer to seat it.
Page 150: System Board And Fan
4.15 System Board and Fan Removing the System Board and Fan To remove the system board and fan, follow the steps below and refer to Figures 4-39 and 4-40. Turn off the power to the computer. Disconnect the AC power cord and all external cables connected to the computer.
Page 151 Disconnect the fan cable from PJ11 and remove two M2.5x6 screws. The ground plate for the CPU heat sensor will be removed with the left screw . Figure 4-40 Removing the fan Installing the System Board and Fan To install the system board, follow the steps below and refer to Figures 4-40 and 4-39. Seat the fan in the system board and secure it with two M2.5x6 screws.
Page 152: Removing The Display Mask
4.16 Display Mask Removing the Display Mask To remove the display mask, follow the steps below and refer to Figures 4-41 and 4-42. Turn off the power to the computer. Disconnect the AC power cord and all external cables connected to the computer. Remove the battery pack, optional PC card and optional memory module as described in Sections 4.2, 4.3, and 4.4.
Page 153: Installing The Display Mask
Carefully insert your fingers between the mask and the LCD panel and pry open the latches. Start with the four latches across the bottom of the display mask. Continue releasing the mask along the sides (four latches on each side) and at the top (four latches).
Page 154 4.17 Fluorescent Lamp (FL) Inverter Board (TFT) Removing the FL Inverter Board (TFT) To remove the FL inverter board, follow the steps below and refer to Figure 4-43. Turn off power to the computer. Disconnect the AC power cable and all external cables connected to the computer.
Page 155 Installing the FL Inverter Board (TFT) To install the FL inverter board, follow the steps below and refer to Figure 4-43. Connect the FL inverter cable to CN1 and the FL cable to CN2 on the FL inverter board. Replace the tape. Seat the FL inverter board.
Page 156: Fluorescent Lamp (Fl) Inverter Board (Dstn)
4.18 Fluorescent Lamp (FL) Inverter Board (DSTN) Removing the FL Inverter Board (DSTN) To remove the FL inverter board, follow the steps below and refer to Figure 4-44. Turn off power to the computer. Disconnect the AC power cable and all external cables connected to the computer.
Page 157 Installing the FL Inverter Board (DSTN) To install the FL inverter board, follow the steps below and refer to Figure 4-44. Seat the FL inverter board. Connect the FL inverter cable to CN1 and the FL cable to CN2 on the FL inverter board.
Page 158: Liquid Crystal Display (Lcd) Module (Tft)
4.19 Liquid Crystal Display (LCD) Module (TFT) Removing the LCD Module (TFT) To remove the LCD module, follow the steps below and refer to Figures 4-45 and 4-46. Turn off the power to the computer. Disconnect the AC power cord and all external cables connected to the computer.
Page 159 Disconnect the flexible cable from the LCD module and disconnect four display cables from PJ2, PJ3, PJ4, and PJ5 on the flexible cable. Remove the shielded tape securing the display cables to the LCD cover. Figure 4-46 Removing the LCD module (TFT) Installing the LCD Module (TFT) To install the LCD module, follow the steps below and refer to Figures 4-46 and 4-45.
Page 160: Liquid Crystal Display (Lcd) Module (Dstn)
4.20 Liquid Crystal Display (LCD) Module (DSTN) Removing the LCD Module (DSTN) To remove the LCD module, follow the steps below and refer to Figures 4-47 and 4-48. Turn off the power to the computer. Disconnect the AC power cord and all external cables connected to the computer.
Page 161 Remove the shielded tape securing the display cables to the LCD cover. Figure 4-48 Removing the LCD module (DSTN) Installing the LCD Module (DSTN) To install the LCD module, follow the steps below and refer to Figures 4-48 and 4-47. Secure the display cable to the LCD cover with shielded tape.
Page 162 4.21 FL (TFT) CAUTION: When you remove the 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 FL (TFT) To remove the FL, follow the steps below and refer to Figures 4-49 and 4-50. Turn off the power to the computer.
Page 163 Carefully rotate the two parts of the LCD PCB out so you can access the FL. Remove the white protective tape securing the FL. Pull back the white plastic cover and remove the FL. Be sure to note how the FL is threaded.
Page 164 Installing the FL (TFT) To install the FL, follow the steps below and refer to Figures 4-50 and 4-49. Place the FL in the frame. Lift up the white plastic cover to route the FL cable. Replace the white protective tape covering the FL. Rotate the two parts of the LCD PCB (connected by a flexible cable) back into place and press firmly to connect the LCD PCB to CN2 on the LCD module.
Page 165 4.22 FL (DSTN) CAUTION: When you remove the FL, be careful not to let any dust or other foreign matter enter the LCD panel components. Any contamination can affect the performance of the unit. Removing the FL (DSTN) To remove the FL, follow the steps below. Refer to Figures 4-51 to 4-52. Turn off the power to the computer.
Page 166 Carefully lift the FL out of the FL unit. The FL is fragile, be sure to not exert undue pressure which could cause it to snap. Figure 4-52 Removing the FL (DSTN) Installing the FL (DSTN) To install the FL, follow the steps below and refer to Figures 4-52 and 4-51. Seat the FL and gently press it securely in place.
Page 167: Removing The Microphone
4.23 Microphone Removing the Microphone To remove the microphone, follow the steps below and refer to Figure 4-53. Turn off the power to the computer. Disconnect the AC power cord and all external cables connected to the computer. Remove the battery pack, optional memory module, optional PC card, FDD or CD-ROM drive, HDD, keyboard, VGA board, sub-battery, RTC battery, top cover with display assembly, display mask, FL inverter board, LCD module and FL as described in Sections 4.2 through 4.22.
Page 168: Appendix A Handling The Lcd Module
Appendix A Handling the LCD Module Precautions for Handling the LCD Module The LCD module can be easily damaged during assembly or disassembly. 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 169 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 a CRT cleaning agent. Apply the agent to a cloth and then wipe the panel’s surface.
Page 170 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 171 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. 430 Series...
Page 172: Appendix B Board Layout
Appendix B Board Layout System Board Front View Figure B-1 Board layout (front) 430 Series...
Page 173 System Board Back View Figure B-2 Board layout (back) 430 Series...
Page 174 Table B-1 System board ICs and connectors (front) Mark Number Name IC5 and 50 System Memory System Clock IC11 RTC Controller IC14 BIOS ROM IC20 Keyboard Controller IC24 IPS Controller Ni-Mh RTC Battery Connector FDD/CD-ROM I/F Connector Ext. FDD Connector Sound HDD Connector ASYNC I/F Connector P-REP Connector...
Page 175 Table B-2 System board ICs and connectors (back) Mark Number Name SCPCNT GA SISCNT GA IC4,6,7,49, System Memory 51 and 52 IC12 IC27 I/O Controller GA IC29 PC Card Controller GA IC514 PS Microprocessor Thermistor Connector Exp.Memory Connector PRT/RGB I/F Connector 430 Series...
Page 176 Table C-9 P-REP connector pin assignments (176-pin) (continued) Pin No. Signal Name Pin No. Signal Name — SD02;110 SD08;110 SD10;110 — SD01;110 SD12;110 SD14;110 — IFTRK0;000 SLFDLD;100 — IFRDAT;000 DSKCHG;000 IFWPRO;000 — IFHMED;000 — PRDT1;000 EXKBDT;100 EXKBCK;100 JOYR;000 JOYW;000 — HVPC —...
Page 177: Keyboard Scan/Character Codes
Appendix D Keyboard Scan/Character Codes Table D-1 Scan codes (set 1 and set 2) Code set 1 Code set 2 Keytop Make Break Make Break Note ‘ ~ 7 & BkSp 29 (42) Caps Lock 430 Series...
Page 178 Table D-1 Scan codes (set 1 and set 2) (continued) 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) E0 F0 11 E0 F0 70 E0 F0 71...
Page 179 Table D-1 Scan codes (set 1 and set 2) (continued) Code set 1 Code set 2 Keytop Make Break Make Break Note PrintSc Pause — — — — Notes: Scan codes differ by mode. Scan codes differ by overlay function. Combination with Fn key makes different codes.
Page 180 Table D-2 Scan codes with 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 181 Table D-4 Scan codes with 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 (•) (–) Table D-6 Scan codes with Ctrl key...
Page 182 Table D-7 Scan codes with Alt key Code set 1 Code set 2 Shift Make Make Pause Common SD C5 Ctrl* *: This key generates only make codes. 430 Series...
Page 183: Key Layouts
Appendix E Key Layouts United States (US) Keyboard Figure E-1 US keyboard United Kingdom (UK) Keyboard Figure E-2 UK keyboard 430 Series...
Page 184 German (GR) Keyboard Figure E-3 GR keyboard French (FR) Keyboard Figure E-4 FR keyboard 430 Series...
Page 185 Spanish (SP) Keyboard Figure E-5 SP keyboard Italian (IT) Keyboard Figure E-6 IT keyboard 430 Series...
Page 186 Scandinavian (SC) Keyboard Figure E-7 SC keyboard Swiss-German (SL) Keyboard Figure E-8 SL keyboard 430 Series...
Page 187: 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 188: Rs-232-C Direct Cable (9-Pin To 25-Pin)
RS-232-C Direct Cable (9-Pin to 25-Pin) (1) CD (4) RTS (2) RD (2) TD (3) TD (3) RD (4) DTR (5) CTS (6) DSR (22) RI (5) GND (7) GND (7) RTS (8) CD (6) DSR (20) DTR (8) CTS (9) RI Figure F-4 RS-232-C direct cable (9-pin to 25-pin) 430 Series...
Page 189: Appendix G Bios Rewrite Procedures
Appendix G BIOS Rewrite Procedures This Appendix explains how to rewrite the system BIOS program when you update the system BIOS. Tools To rewrite the BIOS, you need the following tool: BIOS rewrite disk for the 430 series Rewriting the BIOS Set the system to boot mode.
Page 190 Appendix H Reliability The following table shows MTBF (Mean Time Between Failures) for each component. Table H-1 MTBF Component Time (hours) 50,000 Keyboard 40,000 300,000 20,000 CD-ROM drive 45,000 AC power unit 58,000 430 Series...

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