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1. 001 FDD 02 0000 103 00001 00 00 FDD WRITE PROTECTED 001 FDD 01 0000 180 00001 00 00 FDD TIME OUT ERROR Address Error status Pass count HDC status Subtest number Read data Test name Write data Error count Error status name 1 Next 2 Prev 3 Exit 4 Clear 5 Print 6 FD Log Read 7 FD Log Write 430 Series 3 45 2 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 The 5 key outputs the error log information to a printer The 6 key reads the log information from a floppy disk The 7 key writes the log information to a floppy disk 3 the case of error retry OK a capital R will be placed at the beginning of the error status However it is not added to the error count 3 46 430 Series 3 22 Running Test 3 22 1 Function Description This function automatically executes the following tests in sequence 1 System test subtest number 01 2 Memory test subtest number 01 02 04 06 3 Display test subtest number 01 03 05 4 FDD test subtest number 02 5 HDD test subtest number 01 05 6 Real timer test subtest number 02 7 Printer test sub
2. 2 15 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 Check 2 Check 3 Check 4 2 16 Make sure the FDD cable is firmly connected to the FDD port FDD PJ5 System board If this cable is disconnected connect it to the system unit and repeat Procedure 2 If the FDD is still not functioning properly perform Check 2 The cable may be defective or damaged Replace the cable If the FDD is still not functioning properly perform Check 3 The FDD or its cable may be defective or damaged Replace the FDD with a new one following the steps in Chapter 4 Replacement Procedures If the FDD is still not functioning properly perform Check 4 Replace the system board with a new one following the steps in Chapter 4 430 Series 2 6 Hard Disk Drive Troubleshooting To determine if the hard disk drive is functioning properly perform the procedures below starting with Procedure 1 Continue with the other procedures as instructed Procedure 1 Partition Check Procedure 2 Message Check Procedure 3 Format Check Procedure 4 Diagnostic Test Program Execution Check NOTE The contents of the hard disk will be erased when the HDD troubleshooting procedures are executed Before running the procedures transfer
3. If test OK Press Del Enter Key 430 Series 3 1 1 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 The scan codes character codes and keytop names are shown in Appendix D KEYBOARD TEST IN PROGRESS 302000 Scan code Character code Keytop Ins Lock Caps Lock Num Lock Scroll Lock Alt Ctrl Left Shift Right Shift PRESS Enter KEY Subtest 03 PS 2 Mouse connect check NOTE To execute the PS 2 mouse connect check a PS 2 mouse must be connected to the computer This subtest checks whether or not a PS 2 mouse is connected If this test does not detect an error it returns to the subtest menu If this test detects an error the following message appears KBD MOUSE INTERFACE ERROR HALT OPERATION 1 Test end 2 Continue 3 Retry 3 12 430 Series 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
4. Ja mun Figure E 5 SP keyboard E 6 Italian IT Keyboard Figure E 6 IT keyboard 430 Series E 3 E 7 Scandinavian SC Keyboard Figure E 7 SC keyboard E 8 Swiss German SL Keyboard Figure E 8 SL keyboard 4 MM 430 Series Appendix F Wiring Diagrams F 1 Printer Wraparound Connector 9 PD7 15 ERROR 8 PD6 14 AUTFD 7 5 13 SELECT 6 PD4 16 5 PD3 1 STROBE 10 ACK 4 PD2 12 PE 3 PD1 17 SLIN 2 PDO 11 BUSY Figure F 1 Printer wraparound connector F 2 65 232 Wraparound Connector 3 TD 2 RD 7 RTS 8 CTS 1 CD 4 DTR 6 DSR 9 RI Figure 2 5 232 wraparound connector RS 232 C Direct Cable 9 Pin to 9 Pin 3 TD 2 RD 4 DTR 6 DSR 8 CTS 9 RI 7 RTS 1 CD 5 GND 5 GND 2 RD 3 TD 1 CD 7 RTS 6 DSR 4 DTR 8 CTS 9 RI Figure F 3 RS 232 C direct cable 9 pin to 9 pin 430 Series M F F 4 F 2 RS 232 C Direct Cable 9 Pin to 25 Pin CD 4 RD 2 TD 3 DTR 5 6 22 GND 7 RTS 8 DSR 20 CTS RI Figure F 4 RS 232 C direct cable 9 pin to 25 pin RTS T
5. 430 Series Subtest 03 430 Series 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 THIS LINE SHOWS EMPHASIZED PRINT THIS LINE SHOWS DOUBLE STRIKE PRINT s ALL CHARACTERS PRINT I amp 0123456789 lt gt ABCDEFGHIJKLMNOPQRSTUVWXYZ _ abcdefghijklmn opgqrstuvwxyz OU POF Wraparound NOTE To execute this subtest a printer wraparound connector must be connected to the printer port The printer wraparound connector 34M741986G01 wiring diagram is described in Appendix F This subtest checks the output and bidirectional modes of the data control and status lines through the printer wraparound connector 3 21 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 Subtests 01 through 08 require the following data format Method Asynchronous Speed 9600BPS Subtests 01 to 05 38400BPS Subtests 06 to 08 Data 8 bits and one parity bit EVEN Data pattern 20h to 7Eh The following message will appear at the bottom of the screen when subtests 01 03 04 06
6. T E eI d Ea mem aub B s i i ZEN Me 240 4 T mcg e nn NM 1 ju m nias bo gt m H U nnd rd mm c Em i A CMT UE CI La umb PDA T EM cUm n 18 Figure B 2 Board layout back 2 430 Series 430 Series Table B 1 System board ICs and connectors front IC5 and 50 System Memory IC8 System Clock IC11 RTC Controller 14 BIOS ROM 20 Keyboard Controller 24 IPS Controller PJ3 Ni Mh RTC Battery Connector PJ5 FDD CD ROM I F Connector PJ6 Ext FDD Connector PJ7 Sound HDD Connector PJ8 ASYNC I F Connector PJ9 P REP Connector PJ10 Panel Close Sensor Connector PJ11 Fan Connector PJ12 Ext Keyboard Connector PJ13 Keyboard Connector PJ14 LED Connector PJ15 PC Card Slot Connector PJ16 VGA Connector PJ17 IrDA Board Connector PJ18 Sound Board Power I F Connector PJ19 CD Audio Connector B 3 B 4 Table B 2 System board ICs and connectors back SCPCNT GA SISCNT GA 1C4 6 7 49 51 and 52 System Memory 12 5 27 Controller GA IC29 P
7. dax spos ccs A eo 13 3 24 2 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 The number of math co processors CPU clock ID number of the Enhanced Port Replicator Operations Selecting 8 from the DIAGNOSTIC MENU and pressing Enter displays the following system configuration SYSTEM CONFIGURATION FF Xo 55 BIOS ROM VERSION x CARD DOCK ROTARY SWITCH BOOT ROM VERSION VX XX KBC VERSION VX XX PS MICOM VERSION VX XX 639KB MEMORY 1 FLOPPY DISK DRIVE S 1 ASYNC ADAPTER 1 HARD DISK DRIVE S PRINTER ADAPTER XXXMB XXXXKB EXTENDED MEMORY 1 MATH CO PROCESSOR CPU CLOCK 120MHz Enter Key Press Enter to return to the DIAGNOSTIC MENU 3 52 430 Series 3 25 SETUP 3 25 1 This program displays the current system setup information as listed below 1 430 Series Function Description Memory a Total b Base c Extended Memory d Shadow BIOS ROM Display a Display Adapter b LCD Display Mode c VGA Segment Address d LCD Display Colors e Power On Displ
8. ON oroN2IS9SS9S pO ae Table D 6 Scan codes with Ctrl key Code set 1 Code set 2 Make Break Make Break Common EO B7 EO AA EO 12 EO 7C EO FO 7C EO FO 12 Ctrl EO B7 EO 7C EO FO 7C Shift EO B7 EO 7C EO FO 7C Alt D4 84 FO B4 430 Series D5 Table D 7 Scan codes with Alt key Code set 1 Keke A set2 Pause Common ID 45 E1 SD C5 14 77 E BRE FO 14 FO 77 Ctrl E 46 EO O6 de 7E EO FO 7E This key generates only make codes D 6 430 Series Appendix Key Layouts go TEIL ete EI Tee Figure 1 US keyboard 2 3 amp S E 2 United Kingdom UK Keyboard ae 41840512 TERETI TERTII PERE m TT a Figure E 2 UK keyboard 430 Series 1 2 German GR Keyboard E 4 ER TTT TT a 1 Figure E 3 GR keyboard French FR Keyboard Se sess Figure 4 keyboard 430 Series E 5 Spanish SP Keyboard
9. 1 10 2 Battery Charging Control Battery charging is controlled by a power supply microprocessor The microprocessor controls whether the charge is on or off and detects a full charge when the AC power cord and battery are attached to the computer The system charges the battery using quick charge or trickle charge 430 Series 417 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 Power off About 2 to 3 hours Power on About 5 to 8 hours If one of the following occurs the battery quick charge process stops 1 battery becomes fully charged 2 The battery 15 removed 3 The battery or AC output voltage is abnormal 4 charge current is abnormal Trickle Battery Charge When the main battery is fully charged and the AC power cord is attached the power supply microprocessor automatically changes from quick charge to trickle charge 1 10 3 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 power Main battery Backup battery The backup battery is charged by the main battery or AC power cord Table 1 11 shows the charging time and data preservation period of the backup battery Table 1 11 Backup ba
10. 7 Calculates the remaining battery capacity The power supply output rating is specified in Table 1 8 Use for System logic FDD HDD Display Table 1 8 Power supply output rating DC voltage Regulation tolerance CPU Flash ROM PC card CPU RAM GA VRAM GA 1 16 430 Series 1 10 Batteries The 430 series has three types of batteries 1 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 lon 3 600 mAH Backup battery Nickel Metal Hydride 110 mAH RTC battery Nickel Metal Hydride 30 mAH 1 10 1 Main Battery The removable main battery pack is the computer s main power source when the AC power cord is not attached The main battery recharges the backup battery The backup and main battery maintain the state of the computer when you enable AutoResume Battery Icon The Battery icon is located on top of the back rim of the 430 series The icon shows the status of the removable battery pack The status of each can be determined by color Orange The battery is being charged AC power cord is attached Green The battery is fully charged AC power cord is attached Blink orange battery is low when the power is on No light Under any other conditions the LED does not light
11. Subtest 01 Subtest 02 3 20 Ripple Pattern This subtest prints characters for codes 20h through 7Eh line by line while shifting one character to the left at the beginning of each new line 1 45 0123456789 lt gt 4ABCDEFGHIJKLMNOPQRSTUVWXYZ N abcdefghijklmno 1 5 0123456789 lt gt 9ABCDEFGHIJKLMNOPQRSTUVWXYZ N abcdefghijklmnop 8 0123456789 lt gt 4ABCDEFGHIJKLMNOPQRSTUVWXYZ X abcdefghijklmnopq 0123456789 lt gt ABCDEFGHIJKLMNOPQRSTUVWXYZ X abcdefghijklmnopqr 3 0123456789 lt gt ABCDEFGHIJKLMNOPQRSTUVWXYZ X abcdefghijklmnopqrs 3E 0123456789 lt gt ABCDEFGHIJKLMNOPQRSTUVWXYZ X abcdefghijklmnopqrst 0123456789 lt gt ABCDEFGHIJKLMNOPQRSTUVWXYZ X abcdefghijklmnopqrstu 0123456789 lt gt SABCDEFGHIJKLMNOPQRSTUVWXYZ N abecdefghijklmnopqrstuv 0123456789 lt gt GABCDEFGHIJKLMNOPQRSTUVWXYZ X abcdefghijklmnopqrstuvw 0123456789 lt gt 4ABCDEFGHIJKLMNOPQRSTUVWXYZ X abcdefghijklmnopqrstuvwx 0123456789 lt gt ABCDEFGHIJKLMNOPQRSTUVWXYZ X abcdefghijklmnopqrstuvwxy 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
12. System memory initialization System initialization Interrupt vector initialization PIC initialization Display initialization VRAMERROR System memory test SYSTEM MEMORY ERROR SYSTEM MEMORY PARITY ERROR Extended memory test EXTENDED MEMORY ERROR EXTENDED MEMORY PARITY ERROR DMA page register test DMA PAGE REGISTER ERROR DMAC test DMAC X ERROR DMAC initialization PIC test PIC X ERROR Mouse initialization KBC initialization KBC ERROR HDDinitialization HDC ERROR HDD 0 ERROR FDD initialization FDC ERROR NO FDD ERROR Printer initialization SIO initialization Timer initialization RTC UPDATE ERROR TIMER INTERRUPT ERROR 430 Series NDP initialization Table 2 1 Printer port LED boot mode status Continued Initialization of expansion ROM Password check Setup boot check xxxx Check system Then press F1 key Boot load Check 1 If the following error codes are displayed go to Procedure 5 O1h 02h 03h 04h O5h 06h 07h O8h OAh OBh OCh ODh 18h 1 Fh 25h 30h 40h 41h 42h 4Ah 65h 70h 80h 90h AOh A6h COh FFh Check 2 If error code 50h is displayed go to the Keyboard Troubleshooting procedures in Section 2 7 Check 3 If error code 55h is displayed go to the HDD Troubleshooting Procedures in Section 2 6 Check 4 If error code 60h is displayed
13. Off Disables the alarm Low 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 Panel Close Alarm Enabled Enabled Enables the feature Default Disabled Disables the feature System Beep Use this feature to enable or disable the system beep Enabled Enables the feature Default Disabled Disables the feature Panel Power On Off 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 This option does not appear when the computer is in boot mode Enabled Enables the feature Disabled Disables the feature Default NOTE Do not remove the AC cable 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 Alarm Power On Lets you set the time for the system to turn on automatically For example if you are expecting to receive a modem transmission at a time when you are away or asleep you can set this option to the time of the transmission This option does not automatica
14. Recording method Modified Frequency Modulation MFM 1 8 _ 430 Series 1 4 2 5 inch Hard Disk Drive The Hard Disk Drive HDD is a random access non volatile storage device It has a non removable 2 5 inch magnetic disk and mini winchester type magnetic heads The 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 Formatted capacity byte Toshiba MK1301MAV 1 358 880 768 IBM DMCA 21440 1 445 068 800 Seagate ST91350AG 1 350 107 136 Number of disks 3 2 3 Logical heads 16 16 16 Logical cylinders Bytes per sector Rotation speed rpm 430 Series 1 9 1 5 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 The keyboard is shown in Figure 1 6 See Appendix E for optional keyboard configurations Figure 1 6 Keyboard 1 10 _ 430 Series 1 6 CD ROM Drive The 430 series internal CD ROM drive accommodates either 12 cm 4 72 in
15. 07 and 08 are selected 1 1 XXXXh Channel 2 XXXXh Channel 3 XXXXh Select the Channel number 1 2 3 The serial I O port address is specified by the XXXXh number Select the serial port channel number and press Enter to start the subtest Subtest 01 Wraparound board NOTE To execute this subtest an RS 232 C wraparound connector 34M741621G01 must be connected to the RS 232 C port RS 232 C wraparound connector wiring diagram is described in Appendix F This subtest checks the data send receive function through the wraparound connector Subtest 02 Board 1 lt gt board 2 NOTE To execute this subtest an RS 232 C cable 9 pin to 9 pin must be connected to boards I and 2 The RS 232 C direct cable wiring diagram is described in Appendix F This subtest checks the data send receive function through the RS 232 C direct cable 3 22 6430 Series 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 This subtest sends 20h through 7Eh data to the receive side then receives the sent data and compares it to the original data Subtest 04 Point to point Receive This subtest is used with subtest 03 described above This su
16. Contrast minimum 100 1 FL current 2 4 2 8 4 0 4 6 NOTE The FL currents at power on are Bright Semi bright AC cord connected 4 6 mA 2 8 mA AC cord not connected 4 0 mA 2 4 mA The settings at power on do not change even if the AC cord connection changes 430 Series 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 Voltage 4 to 5 5 Power 4 25 Output Voltage 1 100 Current 2 4 2 8 4 0 4 6 NOTE The FL currents at power on are Bright Semi bright AC cord connected 4 6 mA 2 8 mA AC cord not connected 4 0 mA 2 4 mA The settings at power on do not change even if the AC cord connection changes 430 Series SA ic 1 9 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 1 Determines if the AC cable or battery is connected to the computer 2 Detects AC output and circuit malfunctions 3 Controls the LED icon and speaker 4 Turns the battery charging system on and off and detects a fully charged battery 5 Determines if the power can be turned on and off 6 Provides more accurate detection of a low battery
17. 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 Press any key when ready Remove the Diagnostics Disk from the FDD then insert the cleaning disk and press Enter When the cleaning start message appears the FDD head cleaning has begun The display automatically returns to the DIAGNOSTIC MENU when the program is completed 430 Series 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 The error information is displayed in the following order 902 OY Ue or gt 3 21 2 Error count CNT Test name TS NAME Subtest number TS NAME Pass count PASS Error status STS FDD HDD or memory address ADDR Write data WD Read data RD HDC status HSTS Error status name ERROR STATUS NAME Operations Selecting 5 and pressing Enter in the DIAGNOSTIC MENU logs error informa tion into RAM or onto a floppy disk The error information is displayed in the following format XXXXX ERRORS CNT TS NAME PASS STS ADDR WD RD HSTS STATUS NAME
18. The CD ROM drive is connected to the system board by the CD ROM drive cable This cable may be damaged or disconnected from the system board Disassemble the 430 series following the steps described in Chapter 4 Replacement Procedures and perform the follow ing checks Check sure the CD ROM is firmly connected to the system board CD ROM drive PJ5 System board If this cable is disconnected connect it to the system unit and repeat Procedure 2 If the CD ROM is still not functioning properly perform Check 2 Check 2 The CD ROM drive may be defective or damaged Replace the CD ROM drive with a new one following the steps in Chapter 4 If the CD ROM drive is still not functioning properly perform Check 3 Check3 Replace the system board with a new one following the steps in Chapter 4 430 Series 06 3 1 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 NOTES To start the diagnostics follow these steps 1 Check all cables for loose connections 2 Exit any application you may be using and close Windows The DIAGNOSTIC MENU consists of the following nine functions DIAGNOSTIC TEST HARD DISK FORMAT HEAD CLEANING LOG UTILITIES RUNNING TEST FDD UTILITIES
19. One power communication control 430 Series 15 1 6 Q System Controller Gate Array SCPCNT GA This gate array has the following functions e CPU control SMI control CPU clock control Memory control 64 bit bus memory control 32 bit bus memory control e Bus control 64 bit data bus lt gt 32 bit data bus 32 bit local bus control e Address latch control e register control e Processing speed control ISA Bus Controller Gate Array SISCNT GA This gate array has the following functions e Bus control 32 bit data bus lt gt 16 bit data bus ISA bus interface control ISA bus access control DMAC control DMA address generation TO control Suspend Resume sequence Memory control ISA bus interface control Refresh address generation e O register control e Suspend Resume sequence PC Card Controller Gate Array This gate array has the following functions PCMCIA memory card control e PCMCIA I O card control I O Controller Gate Array IOCNT GA This gate array has the following functions e Internal Communication controller KBC main CPU communication register file KBC interrupt controller KBC communication controller bus control e Others Speaker volume adjust PWM control Sound board interface BIOS ROM interface SMI control IrDA SIR control 430 Series Video Controller Chips amp Technologies F65550 is used This video
20. This data is then read and compared to the original data 430 Series Ao 3 25 Subtest 04 Subtest 05 Subtest 06 Subtest 07 Subtest 08 Subtest 09 Subtest 10 3 26 Cross Talk amp 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 BBADAD 0 cylinder 4A5252 1 cylinder EBeDB6 2 cylinder 149249 3 cylinder 63 63 4 cylinder 9C49C4 5 cylinder 2DB6DB 6 cylinder D24924 7 cylinder Write read compare CE This subtest writes BSADADh worst pattern data to the CE cylinder on the HDD then reads the data from the CE cylinder and compares it with the original data Write specified address This subtest writes specified data to a specified cylinder and head on the HDD Read specified address This subtest reads data which has been written to a specified cylinder and head on the HDD ECC circuit This subtest checks the Error Check and Correction ECC circuit functions of the specified cylinder and head on the HDD Sequential write This subtest writes specified 2 byte data to all of the cylinders on the HDD W R C specified address This subtest writes data to a specified cylinder and head on the HDD then reads the data and compares it to the original data 430 Series 3 12 Real Timer Test To execute the Real Timer Test select 9
21. 29 1 Turn off the power to the computer Disconnect the AC power cord and all external cables connected to the computer 2 Remove the battery pack optional PC card optional memory module FDD or CD ROM drive HDD keyboard sub battery and VGA board as described in Sections 4 2 through 4 9 3 Turn the computer upside down and remove three M2 5x8 silver screws and four M2 5x6 screws securing the top cover and display assembly M2 5x8 silver screws M2 5x6 screws Figure 4 27 Removing the top cover screws 4 Turn the computer over and lift back the top cover and display assembly so you can disconnect the cables 430 Series 07 5 Disconnect the Real Time Clock battery cable from PJ3 on the system board and remove the 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 RTC battery cable Figure 4 28 Removing the RTC battery 6 Disconnect the panel close sensor cable from PJ10 7 Pull the LED cable tab then remove the LED cable from PJ14 on the system board 8 Remove one M2 5x8 screw from the sub battery base 9 Remove the tape securing the ground cable and one M2 5x6 screw from the system board with ground cable 10 Release two latches at the back of the computer and four latches at the front and lift up the top cover with display assembly Be careful t
22. Board PJ7 PJ1 Sound PJ7 HDD Board 2 18 M M M 430 Series Procedure 3 Format Check The HDD is formatted using the low level format program and the MS DOS FORMAT program To format the HDD start with Check 1 below and perform the other check as required Check 1 Using the Toshiba MS DOS system disk partition the hard disk using the FDISK command Format the hard disk using FORMAT C S U to transfer the system program to the 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 Refer to Chapter 3 Tests and Diagnostics for more information about the diagnostic program If the following message appears on the display the HDD low level format is complete Partition and format the HDD using the MS DOS FORMAT com mand Format complete If you cannot format the HDD using the Test and Diagnostic program go to Procedure 4 430 Series 2 19 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
23. CD ROM sound cable from PJ11 on the sound board 8 Press up on the sound board flexible cable evenly to disconnect it from PJ7 on the system board Lift out the sound board 9 Disconnect the sound board power cable from PJ18 on the system board located under left side of power supply cover this cover is not removed until section 4 12 Sound board flexible cable Sound board power cable PJ18 Figure 4 32 Removing the sound board 10 Unlatch the audio jack cover and remove it 11 Lift off the tape securing the membrane switch disconnect the membrane switch cable from PJ10 and lift out the switch Tape Audio jack cover Sound board Figure 4 33 Removing the membrane switch 430 Series 4 31 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 4 32 1 10 11 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 Connect the sound power cable to PJ18 on the system board under the power supply cover Seat the sound board Make sure the volume control and headphone jack fit through corresponding holes in the computer Also make sure pins fit through corresponding holes in the membrane switch NOTE Route three cables sound board power cable CD ROM sound cable and s
24. Contrast is adjusted by the contrast dial If the contrast does not change when you turn the contrast dial perform Procedure 2 Procedure 2 External CRT Check Connect the external CRT to the 430 series external monitor port then boot the computer The computer automatically detects the external CRT even if Resume mode is enabled If the external CRT works correctly the internal LCD display may be damaged Go to Procedure 4 If the external CRT appears to have the same problem as the internal LCD the display controller may be damaged Go to Procedure 3 Procedure 3 Diagnostic Test Program Execution Check 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 If an error is detected go to Procedure 4 If an error is not detected the display is functioning properly 2 22 M 430 Series 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 The LCD module and VGA board are connected as shown below Any of these cables may be disconnected Disassemble the display unit and check the following cable connections Refer to Chapter 4 Replacement Procedures for more information abou
25. Corrected data 1 Correctable data error is corrected IDX 0 Not used Index 1 Index is sensed ERR 0 Normal Error The previous command was terminated with some error 430 Series M 35 37 1 Bad block mark Table 3 4 Error register contents Description 0 Not used 1 A bad block mark is detected UNC Uncorrectable 0 There is no uncorrectable data error 1 Uncorrectable data error has been detected Not used IDNF Identification 0 Not used 1 There was no ID field in the requested sector Not used ABRT Abort 0 Not used 1 Illegal command error or a drive status error occurs TKOO Track 0 0 The hard disk has found track 0 during a recalibrate command 1 The hard disk could not find track 0 during a recalibrate command 3 38 Not used 430 Series 3 19 Hard Disk Format This command executes hard disk formatting There are two types of hard disk formatting Low level physical formatting 1 MS DOS logical formatting This hard disk format function performs a low level format of the hard disk and executes the following hard disk formats and check 1 track FORMAT 2 Good track FORMAT 3 Bad track FORMAT 4 track CHECK NOTES The contents of the hard disk will be erased when subt
26. This test reports the pointing stick motion response from the IPS and IPS switch by displaying the location parameters When the stick is pressed towards the upper left the lt POINTING gt display changes according to the following illustration If an IPS switch is pressed the BUTTON display alternates between black and white Also the parameters appear on the right side of the display If two IPS switches are pressed at the same time the subtest menu is displayed IPS TEST PROGRAM V1 00 mE POINTING PARAMETER gt STATUS 0000h 0000h Y RATE 0000h EBEN SEE lt BUTTON gt 4 1 2 ERN E E lt lt PRESS BUTTON1 BUTTON2 THEN END gt gt ee en be There are eight arrow directions 1111111 as shown below SEER di When a button is pressed the display alternates as shown below 430 Series 13 3 7 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 Subtest 01 VRAM Read Write for VGA This subtest writes constant data AAh and 55h and address data to video RAM 2MB A0000h AFFFFh This data is then read from t
27. Write Policy 3 25 6 SETUP Options The SETUP screen is divided into functionally related groups This section describes each group and its options 1 Memory This option lists the computer s memory allocation a Total Displays the total amount of memory installed and is automatically calcu lated by the computer You cannot change this value b Base Displays the amount of base conventional memory 640 KB and is auto matically calculated by the computer You cannot change this value c Extended Displays the amount of extended memory the computer has available You cannot change this value 430 Series A 3 55 d Shadow BIOS ROM Displays 192 KB of RAM which is reserved for the Shadow BIOS ROM The value cannot be changed 2 Display This option configures the computer s display a Display Adapter This field displays the internal controller for the VGA internal display Only VGA compatible is displayed You cannot change it b LCD Display Mode The LCD displays text in 80 characters by 25 lines and graphics in 800 by 600 pixels for either Color or Monochrome mode Use this option to set the computer s display mode to Color or Monochrome Color Selects color mode Default Monochrome Selects monochrome mode Some software is displayed better in monochrome mode c VGA Segment Address Use this option to set the VGA segment address from the following option E000H E400H
28. about the HDD test program If an error is detected during the HDD test an error code and status will be displayed Per form Check 1 The error codes and statuses are described in Table 2 4 If an error code is not generated the HDD is operating properly Table 2 4 Hard disk drive error codes and statuses Bad command Bad address mark Record not found HDC not reset Drive not initialized HDC overrun DRQ DMA boundary error Bad sector error Bad track error ECC error ECC recover enabled HDC error Seek error Time out error Drive not ready Undefined error Write fault Status error Access time out error Data compare error Check 1 Replace the HDD unit with a new one following the instructions in Chapter 4 Replacement Procedures If the HDD is still not functioning properly perform Check 2 2 Replace the system board with a new one following the instructions in Chapter 4 2 20 430 Series 2 7 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 Diagn
29. checks the real time clock increments making sure the date and time are displayed in the following format Current Current date 12 31 1995 time 23 59 58 Pressing Enter displays the following Current Current date 01 01 1996 time 00 00 00 PRESS Enter KEY TO EXIT TEST Press Ctrl Break to exit 430 Series 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 NDP This test checks the following functions of the coprocessor Control word Status word Bus Addition Multiplication DODDO Press Ctrl Break to exit 430 Series CCCL 3 29 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 Address line REG CE 1 CE 2 line Data line Speaker line Wait line BSY BVD1 line This subtest is executed in the following order Address Contents Address line REG CE 1 CE 2 nn A0 90 80 00 Data line wwewrite data rr read datal Speaker lin
30. direct sunlight or strong ultraviolet rays for long periods 8 Do not store the module at temperatures below specifications Cold can cause the liquid crystals to freeze lose their elasticity or otherwise suffer damage 430 Series M A 4 9 Do not disassemble the LCD module Disassembly can cause malfunctions 10 If you transport the module do not use packing material that contains epoxy resin amine or silicon glue alcohol or oxime These materials can release gas that can damage the panel s polarization 430 Series Appendix Board Layout System Board Front View B 1 1 Q F 1 Board layout front Figure B B 1 430 Series B 2 System Board Back View K iB A ese 7 12 i E e rese mW _ Ries ER E Bie ea ee Pua _ 7 415 ose Sa amp 3 g 3 ae nm ry Ts m Li ye 5 pd pm I v 18 v RA ou BE o up TEE ene D z B sse eo cay 1 1 1 1 av F 2 r4 C G viii __ 16 EJ a
31. forward by its handle to disconnect the HDD Remove the frame and brace with the HDD M2 5x6 screws HDD frame brace Figure 4 16 Removing the frame with the HDD 430 Series 6 Remove four flat head M3x4 screws securing the frame to the HDD and separate the HDD from the frame Flat head M3x4 screws HDD S Flat head M3x4 screws 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 1 Secure the frame to the HDD with four flat head M3x4 screws 2 Attach the HDD frame brace to the HDD frame 3 Seat the HDD in the computer and press to secure the connection 4 Secure the HDD frame to the computer with two M2 5x6 screws 5 Install the FDD or CD ROM drive optional memory module optional PC card and battery pack as described in Sections 4 6 back through 4 2 430 Series 19 4 8 Keyboard Removing the Keyboard To remove the keyboard follow the steps below and refer to Figures 4 18 to 4 20 1 Turn off the power to the computer Disconnect the AC power cord and all external cables connected to the computer 2 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 3 Release 14 latches on the base cover and remove it Begin along the front side Base cover Figure 4 18 Removing the keyboard base 4 Lift out the keyboard a
32. from step b is displayed again After the floppy disk has been copied the following message will appear Copy complete Another copy 1 Yes 2 No e To copy another disk type 1 and the message from step a will be displayed again Entering 2 returns the test program to the DIAGNOSTIC MENU DUMP program a When dump is selected the following message appears DIAGNOSTICS HARD DISK amp FLOPPY DISK DUMP VX XX Drive type select 1 FDD 2 HDD b Selecta drive type If 1 is selected in step a the following message dis plays Select drive number 2B Select an FDD drive number The display will go to step c If 2 is selected the following message displays Select drive number 1350 24D 2 After selecting the HDD the display will go to step c The following message will be displayed Format type select 1 2DD 2 2D 3 2HD d Select a format type and the following message will appear Insert source disk into drive A Press any key when ready e Insert a source disk press any key and the following message will appear Max address Track 0079 Head 01 Sector 09 Track number f Set the track number you want to dump Then the system will access the disk and dump a list 3 51 3 24 System Configuration 3 24 1 Function Description The System Configuration program contains the following configuration information for the computer OO
33. in Table 1 4 Table 1 4 DSTN color LCD specifications Specifications dots 800x600 0 288x0 288 Number of Dots Dot pitch m m m Contrast Typically 27 1 Display area mm 229 2 W x171 H FLcurrent mA 5 0 3 0 Bright Semi bright 1 12 a 430 Series 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 Specifications Input Voltage V 4 to 5 5 Power W 4 25 Output Voltage Vrms 1 100 Current mA 5 0 3 0 Bright Semi bright 430 Series 1 8 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 This controller includes the functions of VGA and SVGA for external display A display controller is F65550 This controller enables an LCD display of a maximum 16M colors The TFT LCD is shown in Figure 1 9 Figure 1 9 TFT color LCD The specifications for the LCD are listed in Table 1 6 Table 1 6 TFT color LCD specifications Item Specifications Number of dots 800x600 Dot pitch 0 288 W x0 288 Display area 229 2 W x171 H
34. 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 If Windows95 is selected check to see if the Microsoft Create System Disks Tools MSCSD EXE still exists in the System Tools Folder This tool can be used only once If it exists use it to back up the preinstalled software then use the Backup utility in the System Tools folder to back up the entire disk including the user s files Refer to the operating system instructions for each operating system 1 When you select the hard disk test from the DIAGNOSTIC TEST MENU the following message will appear Test drive number select 1 HDD 1 2 HDD 2 0 HDD1 amp 2 2 Select the hard disk drive number to be tested and press Enter The following message will appear HDC F W error retry 1 yes 2 no 3 Select 1 or 2 and press Enter The following message will appear Data compare error dump 1 no 2 yes This message is used to select the retry operation when the hard disk controller detects an error 4 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 the error dump operation when a data compare error is detected 3 24 M 430 Series 5 The HDD st
35. is not the same as the actual configuration 430 Series 2 7 Check 2 Check 3 2 8 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 a Bad HDD type Check system Then press F1 key b Bad RTC battery Check system Then press F1 key c Bad configuration Check system Then press F1 key d Bad memory size Check system Then press F1 key e Bad time function Check system Then press F1 key f Bad check sum CMOS Check system Then press F1 key g Bad check sum ROM Check system Then press F1 key If the following error message is displayed on the screen press any key as the message instructs The following error 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 If any other message appears perform Check 3 WARNING RESUME FAILURE PRESS ANY KEY TO CONTINUE The IRT checks the system board When the IRT detects an error the system stops or an error message appears If one of the following error messa
36. one shown above 430 Series 430 Series Select the desired subtest number from the subtest menu and press Enter The following message will appear EST LOOP d RROR STOP YI HA Gl FI 5 5 Selecting YES for TEST LOOP sets the test to run continuously until it is halted by the user Selecting NO returns the screen to the main menu after the test is complete Selecting YES for ERROR STOP stops the test program when an error is found and displays the operation guide on the right side of the display screen as shown below ERROR STATUS NAME HALT OPERATION 11 1 Test end Continue 3 Retry N These three selections have the following functions respectively 1 Terminates the test program and exits to the subtest menu 2 Continues the test 3 Restarts the test from the error Use the arrow keys to move the cursor to the desired option and press Enter Selecting NO for ERROR STOP keeps the test running even if an error is found Table 3 1 in Section 3 3 describes the function of each test on the subtest menu Table 3 2 in Section 3 17 describes the error codes and error statuses for each error 3 5 3 3 Subtest Names Table 3 1 lists the subtest names for each test program in the DIAGNOSTIC TEST MENU Table 3 1 Subtest names Testname Subtest No Subtest item SYSTEM ROM checksum Fan ON OFF Thermistor check MEMORY RAM constant data RAM address pattern data RAM r
37. port This port enables a connection of the external FDD attachment if the CD ROM module is installed inside the system unit PC card slot A PC card slot accommodates two 5mm cards Type or 10 5mm card which support PCMCIA Release 2 01 cards These slots also support advanced cards including PC Card 16 multifunction cards as well as the Zoomed Video ZV port which is dedicated to high performance video data transfer such as MPEG video play back Enhanced Port Replicator port This port enables connection of an Enhanced Port Replicator The Enhanced Port Replicator has two PC card slots Type and expands connections to the following devices PS 2 keyboard PS 2 mouse serial port parallel port external CRT joystick MIDI port audio line in audio line out headphone external FDD AC in AC out and rotary switch ID select switch 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 Incorporates an IrDA1 0 115 2Kbps supported standard infrared transmitter and receiver 430 Series 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 The 430 series Personal Co
38. sector Rotation speed rpm Good track FORMAT This option formats a specified cylinder and track as a good track If a good track is formatted as a bad track use this option to change the track to a good track Bad track FORMAT This option formats a specified cylinder and track as a bad track If a bad track is detected use this option to label it as a bad track Bad track CHECK This option searches the hard disk for bad tracks by reading data to all the tracks on the hard disk A list of bad tracks is displayed when the program is complete If an error other than a bad track is detected the program is automatically termi nated 430 Series 3 19 2 Operations 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 1 All track FORMAT 2 Good track FORMAT 3 Bad track FORMAT 4 9 Bad track CHECK Go to TEST MENU Toe Select items Enter Finish Esc Exit 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 5 XX Sector
39. switch spring on the system board To reinstall the shutter assembly for the PC card pull the eject button out as far as it will go then insert the assembly and reset the eject button Set the back edge of the system board into the computer s I O port side and lower the board into place Secure one M2 5x6 screw in the upper right corner of system board under back guide assembly support Seat the VGA support back guide assembly support Selectable Bay connector cover and ground plate Secure the system board with five M2 5x6 one M2x8 and two M2 5x4 screws Install the infrared board AC PS unit speaker sound board top cover with display assembly RTC battery sub battery VGA board keyboard HDD FDD or CD ROM drive optional memory module optional PC card and battery pack as described in Sections 4 14 back through 4 2 430 Series 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 1 Turn off the power to the computer Disconnect the AC power cord and all external cables connected to the computer 2 Remove the battery pack optional PC card and optional memory module as described in Sections 4 2 4 3 and 4 4 NOTE It is not necessary to remove the top cover with display assembly 3 Remove two seals from the display hinges and two rubber cushions from the top corners to expose screws securing the display mask NOTE Support th
40. the AccuPoint Auto selected 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 FDD HDD The computer looks for bootable files first on the FDD and next on the HDD Default HDD FDD The computer looks for bootable files first on the HDD and next on the FDD You can reverse the order by holding down the F10 key while the computer is booting This procedure alternates the setup setting 3 66 M 430 Series 41 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 LL 430 Series LI Battery Pack Optional PC card Optional memory card Display FL inverter Board FDD CD ROM drive Mask LCD Module Hard disk drive FL Keyboard Sub battery VGA board RTC b
41. the contents of the hard disk to floppy disk as follows Check to see if the Microsoft Create System Disks Tools MSCSD EXE still exists in the System Tools Folder This tool can be used only once If it exists use it to back up the preinstalled software then use the Backup utility in the System Tools folder to back up the entire disk including the user s files 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 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 Check 2 FDISK and press Enter Choose Display Partition Information from the FDISK menu If drive C is listed go to Check 3 If drive C is not listed return to the FDISK menu and choose the option to create a DOS partition on drive C Recheck the system If the problem still exists go to Procedure 2 Check 3 If drive C is listed as active the FDISK menu go to Check 4 If drive C is not listed as active return to the FDISK menu and choose the option to set the active partition for drive C Recheck the system If the problem still exists go to Procedure 2 Check 4 Remove the system disk from the FDD and cold boot the computer If the prob lem still exists go to Procedure 2 Otherwise the HDD is operating normally 430 Ser
42. the steps below and refer to Figures 4 1 and 4 2 1 Turn off the power to the computer Disconnect the AC power cord and all external cables connected to the computer 2 Turn the computer over 3 Push the battery cover lock to release the battery cover 4 Push the cover forward until it stops about one centimeter or half an inch Battery cover lock Battery cover Figure 4 1 Removing the battery pack cover 5 Lift off the cover 6 Pull back the battery latch and lift out the battery pack Battery pack Battery latch 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 46 MM 430 Series Installing the Battery Pack To install the battery pack follow the steps below and refer to Figures 4 1 to 4 3 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 Use only batteries recommended by Toshiba as replacements 1 Turn off the power to the computer Disconnect the AC power cord and all external cables connected to the computer 2 Carefully insert the new or recharged battery pack 3 Replace the batt
43. this feature to enable or disable the CPU cache Enabled Enables the CPU cache Default Disabled Disables the CPU cache When enabled is selected a subwindow similar to the one below is dis played to let you select the cache write policy The options for this setting are Write back default and Write through Option Write Policy Write back Write back policy provides better system performance because main memory is accessed only when neccessary to update the cache contents with changes in main memory Write through policy accesses main memory every time data is handled by the processor Battery Save Mode This option is used to select Full Power or Low Power or User Setting of the BATTERY SAVE OPTION Full Power following shows full power settings BATTERY SAVE OPTIONS Processing Speed High CPU Sleep Mod 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 following shows low power settings BATTERY SAVE OPTIONS Processing Speed Low CPU Sleep Mod Enabled Display Auto Off 03 Min HDD Auto Off 03 Min System Auto Off 30 Min LCD Brightness Semi Bright Cooling Method Quiet 3 61 NOTE 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 BATTER
44. 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 Subtest 02 Subtest 03 Subtest 04 Subtest 05 3 8 ROM checksum This subtest executes a checksum test of the BIOS ROM on the system board Not used Not used Fan on off This subtest checks fan operation using the on off command The fan cable is securely connected to the system board When you execute this subtest the following message is displayed Fan ON Press Enter key When you press Enter the fan should spin Fan OFF Press Enter key When you press Enter the fan should stop Thermistor check This subtest reads the thermistor connect check status of the power supply microprocessor then compares it with the original data If the data indicates the connector is open or shorted it displays an error message 430 Series 3 5 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 Subtest 02 Subtest 03 Subtest 04 430 Series RAM constant data This subtest writes a 256 byte unit of constant data to conventional memory 0 to 640 KB Then reads the new data and compares the result with the original data The cons
45. 2 16 MB 3 32 MB Select the number that corresponds to the memory card installed in the com puter Subtest 06 Cache memory To test the cache memory a pass through write read comparison of SA data is run repeatedly to the test area 770007 Program size to 7000 7FFF 32 KB to check the hit miss ratio on off status for CPU cache memory One test takes 3 seconds Number of misses Number of hits OK Number of misses gt Number of hits Fail 3 10 MM 430 Series 3 6 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 Subtest 01 Pressed key display NOTE The Num Lock and the Overlay mode must be off to execute this subtest When you execute this subtest the keyboard layout is drawn on the display as shown below When any key is pressed the corresponding key on the screen changes to an character Holding a key down enables the auto repeat function which causes the key s display character to blink EL Press Key Display 1 H EH PRR REE
46. 44 1 off power to the computer Disconnect the AC power cable and all external cables connected to the computer 2 Remove the battery pack optional PC card optional memory module and display mask as described in Sections 4 2 4 3 4 4 and 4 16 NOTE Support the back of the display with your hand when you remove the screws 3 Remove two M2 5x6 screws securing the FL inverter board The left screw also secures the ground cable 4 Remove one M2 5x6 screw securing the contrast control board 5 Disconnect the contrast control cable from the contrast control board 6 Remove tape and disconnect the FL inverter cable from CN1 and the FL cable from CN2 on the FL inverter board 7 the board out M2 5x6 screws Tape FL Inverter board ir e NS FL cable FL inverter cable Ground wire Contrast control board Contrast control cable M2 5x6 screw Figure 4 44 Removing the FL inverter board DSTN 430 Series i 445 Installing the FL Inverter Board DSTN To install the FL inverter board follow the steps below and refer to Figure 4 44 1 2 4 46 Seat the FL inverter board Connect the FL inverter cable to CN1 and the FL cable to CN2 on the FL inverter board Secure the FL inverter board with two M2 5x6 screws Be sure the contrast control wheel is fitted into its opening in the case Connect the contrast control cable to the contrast control bo
47. 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 If the Battery icon glows orange the AC power cord is connected and the battery is being charged If the Battery icon does not glow go to Check 1 Check 1 sure the AC power cord is firmly plugged into the AC IN socket and wall outlet If these cables are connected correctly go to Check 2 Check 2 Make sure the battery pack is installed in the computer correctly If the battery pack is installed correctly go to Check 3 Check 3 Remove the battery pack and check that the battery terminal is clean and not bent If the terminal appears dirty clean it gently with a cotton swab dipped in alcohol If the terminal looks bent or damaged replace the system board If the battery terminal is clean and not bent go to Check 4 Check 4 Connect a new AC power cord If the Battery icon still does not glow go to Check 5 Check 5 Install a new battery pack If the Battery icon still does not glow go to Procedure 3 Procedure3 AC PS Unit Replacement Check The system board incorporates the power supply Power is supplied to the system board through the AC IN plug located on the AC PS unit The AC PS unit may be damaged refer to Chapter 4 for instructions on how to disassemble the 430 s
48. C Card Controller GA 514 PS Microprocessor PJ1 Thermistor Connector PJ2 Exp Memory Connector PJ4 PRT RGB I F Connector 430 Series C 10 C 11 C 10 Signal Name GND 5008 110 GND D12 110 GND SLFDLD 100 DSKCHG 000 NC GND EXKBDT 100 JOYR 000 GND LOUTLM LINLM Table C 9 P REP connector pin assignments 176 pin continued Signal Name 5002 110 D10 110 5001 110 D14 110 IFTRKO 000 IFRDAT 000 IFWPRO 000 IFHMED 000 PRDT1 000 EXKBCK 100 JOYW 000 HVPC LOURLP LINLP PJ10 Panel Close Sensor Connector 2 pin Table C 10 Panel close sensor connector pin assignments 2 pin Simaiame VO Pine Sigrainame vo eo PJ11 Fan Connector 2 Table C 11 Fan connector pin assignments 2 pin Saiams VO Pinno SignaiName vo vec ee PJ12 Mouse Connector 6 pin Table C 12 Mouse connector pin assignments 6 pin Signal Name Signal Name MOUSE KB DATA EXKBDT 100 GND VCC MOUSE KB _CLOCKO EXKBCK 100 430 Series Appendix Keyboard Scan Character Codes Table D 1 Scan codes set 1 and set 2 Tab Q W E R T Y U o 9 TACIOmOOPT 430 Series D 1 D 2 Table D 1 Scan codes set I and set 2 continued Keytop Enter Shift L No 102 key Z
49. Command Address Mark Not Found Write Protected Record Not Found Media Removed DMA Overrun Error DMA Boundary Error CRC Error FDC Error Seek Error FDD Error Time Out Error Write Buffer Error Printer Time Out Fault Select Line Out Of Paper Power Off Busy Line DSR On Time Out CTS On Time Out RX READY Time Out 430 Series Table 3 2 Error codes and error status names Continued Device name ASYNC cont Error code Error status name 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 HDC Overrun DRQ DMA Boundary Error Bad Sector Bad Track Error ECC Error ECC Recover Enabled HDC Error Seek Error Time Out Error Drive Not Ready Undefined Error Write Fault Status Error Access Time Out Error No Co Processor Control Word Error Status Word Error Bus Error Addition Error Multiply Error 430 Series Expansion Address Line Error REG Line Error CE 1 Line Error CE 2 Line Error DATA Line Error WAIT Line Error BSY Line Error BVD1 Line Error No PCMCIA 3 35 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 Correct
50. D RD CTS DSR RI GND CD DTR 430 Series 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 1 Setthesystemto boot mode 2 Turn off the power to the 430 series 3 Remove the external cable and PC card 4 Turnon the power while holding down the F12 key Keep holding the key down until the system speaker sounds a beep 5 When the message is displayed insert the BIOS rewrite disk into the FDD Press Enter to start the BIOS rewrite 6 When the BIOS rewrite is finished eject the BIOS rewrite disk and press the reset switch to restart the system 430 Series 94 Appendix Reliability The following table shows MTBF Mean Time Between Failures foreach component Table H 1 MTBF Component Time hours LCD 50 000 Keyboard 40 000 HDD 300 000 FDD 20 000 CD ROM drive 45 000 AC power unit 58 000 430 Series
51. Default NOTE In the DOS environment if you choose either E400H or CO00H the Pop up window is not displayed when you press the Fn F2 or Fn F3 hotkeys However the corresponding functions of the keys work d LCD Display Colors Used to select the color palette of the internal display when the LCD mode is set to Color TFT display 256K colors Displays 16M colors This value cannot be changed DSTN display 222K colors Displays 256 colors out of 226 981 colors 4096 colors Displays 256 colors out of 4096 colors 3 56 M 430 Series 3 430 Series NOTE If the DSTN screen flickers with an LCD Display Colors setting of 222K Colors select 4096 Colors e Power On Display This option is used to select the display when booting up Internal External Selects an external CRT if is connected other wise it selects the internal LCD Default Simultaneous Selects both the internal LCD and the external CRT for simultaneous display NOTE When starting the computer in Resume mode the last configu ration is remembered If data does not appear on the display you are using after starting in Resume mode press 5 Pressing Fn F5 changes the display setting as follows internal LCD to simultaneous to external CRT f Text Mode Stretch Text mode stretch enables a larger display area of 800 x 600 pixels in text mode Disabling this function reduces the resolution to the standard 800 x 600
52. 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 SOUND SYSTEM I O Address Interrupt Level DMA 0220H 010 Channel I O address Use this option to set the I O address from among the following settings 0220h Default 0230h 0240h 0250h Interrupt level This option sets the interrupt level for the sound system The available settings are IRQS IRQ7 IRQ9 IRQ10 Default NOTE Sound Blaster compatible software uses IRQ7 as the default If you use such software try to change the software setting to IRQIO If you cannot change the software setting change the hardware setting to IRQ7 DMA direct memory access channel Use this option to set the DMA channel The available settings are Channel 0 Channel 1 Default Channel 3 6 Others Whether or not you need to configure the computer with these options depends primarily on the kind of software or peripherals you use a Power up Modes This option lets you choose between AutoResume and boot mode You can also set this option using hotkeys AutoResume is effective with either the internal LCD or with an external monitor 3 60 M 430 Series 430 Series b c Boot Turns on boot mode Default Resume Turns on the AutoResume feature CPU Cache Use
53. E b lexible cable M2x2 3 black screw M2x3 5 silver CN2 Screws Figure 4 49 Accessing the FL TFT 430 Series 4 51 8 Carefully rotate the two parts of the LCD PCB out so you can access the FL 9 Remove the white protective tape securing the FL 10 Pull back the white plastic cover and remove the FL sure to note how the FL is threaded NOTE Be extremely careful of the silver covering over the back of the screen do not remove this covering White plastic cover LCD PCB Figure 4 50 Removing the FL TFT 4 52 M M 430 Series Installing the FL TFT To install the FL follow the steps below and refer to Figures 4 50 and 4 49 1 2 430 Series 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 Replace the tape Secure the LCD PCB with one M2x2 3 black screw two M2x3 5 silver screws and two M2x5 5 silver screws Seat the metal FL cover Slide it to the right to secure the latches Be sure the extension on the metal cover is under the edge of the LCD PCB Secure two M2x3 5 silver screws and replace the gold protective tape Install the LCD module FL inverter board display mask option
54. EA Se ee 4 If an error is detected during any of these tests go to Procedure 5 Procedure5 Replacement Check The system board or the sound board may be damaged Disassemble the 430 series following the steps described in Chapter 4 Replacement Procedures and perform the following checks Check 1 Replace the system board with a new one Refer to Chapter 4 for instructions on how to remove and replace the system board Check 2 Replace the sound board with a new one Refer to Chapter 4 for instructions on how to remove and replace the sound board NOTE See Figure 1 2 in Chapter 1 Hardware Overview for a view of the system board configuration 430 Series 248 2 5 Floppy Disk Drive Troubleshooting This section describes how to determine if the 430 series internal or external 3 5 inch floppy disk drive is functioning properly Perform the steps below starting with Procedure 1 and continuing with the other procedures as required Procedure 1 FDD Head Cleaning Check Procedure 2 Diagnostic Test Program Execution Check Procedure 3 Connector Check and Replacement Check Procedure 1 FDD Head Cleaning Check 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
55. If the FDD still does not function properly after cleaning go to Proce dure 2 If the test program cannot be executed on the 430 series go to Procedure 3 2 14 _ 430 Series Procedure 2 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 Floppy disk drive test error codes and their status names are described in Table 2 3 Make sure the floppy disk in the FDD is formatted correctly and that the write protect tab is dis abled If any other errors occur while executing the FDD diagnostics test go to Check 1 Table 2 3 Floppy disk drive error codes and statuses Bad command Address mark not found Write protected Record not found Media removed on dual attach card DMA overrun error DMA boundary error CRC error FDC error Seek error FDD not drive Time out error Not ready Write buffer error Data compare error Check 1 If the following message is displayed disable the write protect tab on the floppy disk Write protected If any other message appears perform Check 2 Check 2 Make sure the floppy disk is formatted correctly If it is go to Procedure 3 430 Series
56. SYSTEM CONFIGURATION EXIT TO MS DOS SETUP 430 Series Ao CSC 3 The DIAGNOSTIC TEST MENU contains the following functional tests SYSTEM TEST MEMORY TEST KEYBOARD TEST DISPLAY TEST FLOPPY DISK TEST PRINTER TEST ASYNC TEST HARD DISK TEST REAL TIMER TEST NDP TEST EXPANSION TEST SOUND TEST CD ROM TEST You will need the following equipment to perform some of the Diagnostic test programs The Diagnostics Disk all tests A formatted working disk for the floppy disk drive test all tests An external FDD attachment A cleaning kit to clean the floppy disk drive heads Head Cleaning A PC card wraparound connector for the I O card test Expansion test 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 test media Toshiba EMI test disk TDY 03 and music CD CD ROM test External CRT tests PS 2 or compatible keyboard tests PS 2 or compatible mouse Keyboard test 0 00 Serial Port wraparound connector AS YNC test Multimedia sound system with line in and line out ports Sound test Headphone Sound test A microphone A music CD The following sections detail the tests within the Diagnostic Test function of the DIAGNOS TIC TEST MENU Refer to Se
57. Shift R Ctrl Alt L Space ALT R Ins Del 430 Series Table D 1 Scan codes set I and set 2 continued Code set 1 Code set 2 Make Break Make F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 PrintSc Pause Fn Notes 2 3 4 5 6 7 430 Series Scan codes differ by mode Scan codes differ by overlay function Combination with Fn key makes different codes Fn key does not generate a code by itself This key corresponds to key No 42 in 102 key model Refer to table D 6 scan codes with Ctrl key Refer to table D 7 scan codes with Alt key Break D 3 Table D 2 Scan codes with left Shift key Code set 1 Code set 2 Make Break Make Break Note The table above shows scan codes with the left Shift key In combination with the right Shift key scan codes are changed as below With left Shift With right Shift Set 1 AA E0 2A 36 Set 2 EO FO 12 E0 59 EO 12 59 Table D 3 Scan codes in Numlock mode Code set 1 Code set 2 Make Break Make Break 04 430 Series Table D 4 Scan codes with Fn key Code set 1 Code set 2 Make Brea Make Brea ENT CTRL LALT ARROW NUMERIC Table D 5 Scan codes in overlay mode Code set 1 Code set 2 Make Break Make Break gt S TFTACTVTO
58. Sla Port Gallet Figure 1 3 430 series system board block diagram 430 Series 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 EDO extended data output supported BIOS ROM Flash EEPROM 128 KB one 128Kx8 bit chip memory 64 KB in the ROM are used for system BIOS 40 KB in the ROM are used for VGA BIOS 24 KB in the ROM are reserved Access time 150 ns Data transfer is 8 bit width Video RAM 2 MB Four 256Kx 16 bit DRAM 5 volt operation Optional memory One expansion memory slot is available for 8 16 and 32 MB memory modules which consist of 1 MBx16 bit chips Total maximum memory size is 48 MB if a 32 MB memory module is installed 3 3 volt operation No parity bit Access time 60 ns Data transfer is 64 bit width EDO extended data output supported One super integration SI The following components Two DMACs 82C37 equivalent Two PICs 82C59 equivalent Two UART 16550 equivalent One PIT 82C54 equivalent One FDC TC8565 equivalent One VFO TC8568 equivalent One I O port decode One SIO port control One printer port control supported ECP One FDD control One speaker control
59. TOSHIBA 430 Series PN 430 9400 CASM 2970307 B00 1 1 Features The 430CDT 430CDS 430 Series are two of the lightest and most advanced portable computers available Utilizing advanced technology and high speed components the 430 series offers multimedia functions excellent display legibility battery operation and IBM PC AT compatibility The 430 series system unit has the following features Microprocessor Uses an Intel Pentium processor with Voltage Reduction Technology VRT that operates at 120 MHz and 3 3 2 9 volts L Disk storage An internal 1 3 billion byte 1 26 GB Hard Disk Drive HDD A 3 5 inch Floppy Disk Drive FDD supports 2HD 1 44 MB floppy disks and 2DD 720 KB floppy disks The FDD can also be installed in an attachment for connection as an external device CD ROM Drive A full size ten speed average CD ROM drive module can be installed instead of the FDD module The CD ROM drive contains an ATAPI AT attachment packet inter face interface controller and supports the following formats audio CD photo CD CD plus and ISO 9660 Memory Standard with 16 MB of CMOS RAM This includes 640 KB of conventional memory and 15360 KB of extended memory which can be utilized as expanded memory compatible with the Lotus Intel Microsoft Expanded Memory Specification LIM EMS Display The 430CDT has an 11 3 inch Thin Film Transistor TFT color LCD w
60. The Panel Power On Off item appears only when the computer is in Resume mode 2 The 430CDS LCD Display Colors options are 222k and 4096 colors 3 25 3 Moving Within the SETUP Menu and Changing Values 1 Press and lt to move between the two columns Press T and J to move be tween items in a column 2 Press either the space bar or BkSp to change the value 3 25 4 Accepting Changes and Exiting the SETUP Window Press End to accept the changes you made If the changed item does not require the system to reboot the following message is displayed Are you sure Y N If the changed item requires the system to reboot the following message is dis played Are you sure Y N The changes you made will cause the system to reboot 3 54 430 Series 2 make other changes press Repeat the steps above 3 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 1 To show the factory preset configuration press Home 2 accept the default settings press End and then press Y NOTE When you execute the default setting the following settings are not changed HDD Mode Password Sound System I O Address Interrupt Level DMA
61. When the card is fully seated eject button will pop out the top button for the top connector and the bottom button for the bottom connector 5 Pull the eject button out slightly and bend it to lock the card 6 Install the battery pack as described in Section 4 2 4308 85 49 4 4 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 1 Turn off the power to the computer Disconnect the AC power cord and all external cables connected to the computer 2 Remove the battery pack and Optional PC card as described in Sections 4 2 and 43 3 Turn the computer upside down 4 Remove two silver M2x4 screws securing the memory module socket cover 5 Slide your fingernail or a thin object under the cover and remove it Memory module socket cover Figure 4 6 Removing the memory module socket cover 6 Remove two M2x4 screws securing the module to a brace at the center of the module M2x4 screws Figure 4 7 Removing the memory module 7 Insert a thin object and lift up to disengage the connector then grasp the module by the edges and remove it Some models may have a plastic tab If so simply pull up on the tab to disengage the connector 4 10 H 430 Series Installing a
62. XX Model name gt gt gt The following selections also appear in succession at the bottom of the screen Drive number select 1 1 2 2 a Select a drive number and press Enter The following message will appear Interleave number 1 1 8 b Select an interleave number 1 8 and press Enter Pressing only Enter selects 1 430 Series 3 44 c 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 WARNING Current DISK data will be completely destroyed Press Bad cylinder number dddd key Press Bad head number dd key Enter the cylinder and head number in the format above in decimal notation Repeat for each bad track you want to format After entering the bad tracks press Enter to execute the format d All track format All tracks are formatted as good tracks except those registered as bad tracks in item c above or those identified as bad tracks in track verification described in item e below e 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 15 automati cally formatted as a bad track 2 Good track FORMAT If a good track has be
63. Y 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 The default setting in the sub windows depends on the Battery Save Mode Low Power Long Life or Full Power Normal Life For details see Battery Save Options below 1 Battery Save Options The following set of options can be selected in the sub menu of User Setting which is one of the Battery Save Mode options Processing Speed This feature changes the CPU processing speed High operates at 120 MHz Default Low operates at half speed CPU Sleep Mode Use this option to enable or disable the CPU sleep function Enabled Enables sleep mode Disabled Disables sleep mode Display Auto Off Use this option to disable or set the duration of the display automatic power off function This function causes the computer to turn the LCD panel illumination off if you make no entry for the set period of time Disabled Disables display automatic power off xx Min Automatically turns off power to the LCD panel illumination if the panel is not used for the duration set The duration xx can be set to 1 3 5 10 15 20 or 30 minutes 3 62 430 Series HDD Auto Off Use this option to disable or set the duration of the HDD automatic power off function Disabled Disables display autom
64. al PC card optional memory module and the battery pack as described in Sections 4 19 4 17 4 16 4 4 4 3 and 4 2 4 53 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 1 Turn off the power to the computer Disconnect the AC power cord and all external cables connected to the computer 2 Remove the battery pack optional memory module optional PC card display mask FL inverter board and LCD module as described in Sections 4 2 4 3 4 4 4 16 4 18 and 4 20 3 Turn the LCD module over and release four latches securing the FL module to its frame 4 Remove two M2x6 silver screws M2x6 screws Figure 4 51 Removing the FL assembly DSTN 5 Lift the FL module out of the frame 454 MM M M M 430 Series 6 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 1 Seat the FL and gently press it securely in place 2 Secure four latches 3 Secure two M2x6 silver screws 4 Install the LCD m
65. and left sides Also check the sound adjustment volume Subtest 03 SINE wave playback This subtest expands the sine wave data table to 64KB and creates sine wave data The play data is transferred between DMA and CODEC and plays the sound It is a long beep Also use the oscilloscope to observe the sine wave form Subtest 04 Joystick To execute this subtest the Enhanced Port Replicator and a joystick are required For minimum sampling data turn the stick to the upper left and press the A or B button For maximum sampling data turn the stick to the lower right and press the A or B button it must be a different button than the one used for minimum sampling data If two sampling data are the same an error occurs 430 Series 51 Subtest 05 Subtest 06 3 32 Joystick MIDI wraparound Conduct a wraparound test on the joystick MIDI port 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 After making the connections a dialogue box will be displayed Press Enter to play a recorded sound About three seconds after the recorded sound is played the dialogue box will be displayed again NOTE The Enhanced Port Replicator must be connected to conduct the line out test 430 Series 3 16 CD ROM Test To execute the CD ROM
66. ard NOTE Support the back of the display with your hand when you secure the SCrews Secure the contrast control board with one M2 5x6 screw Be sure the left screw secures the ground cable Replace the tape on the FL inverter cable Install the display mask optional memory card optional PC card and battery pack as described in Sections 4 16 4 4 4 3 and 4 2 430 Series 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 1 Turn off the power to the computer Disconnect the AC power cord and all external cables connected to the computer 2 Remove the battery pack optional memory module optional PC card display mask and FL inverter board as described in Sections 4 2 4 3 4 4 4 16 and 4 17 NOTE Support the back of the display with your hand when you remove the SCrews 3 Remove four M2 5x6 screws securing the LCD module to the LCD cover The screw at the lower left corner also secures the ground cable LCD module M2 5x6 screws screws Ground cable Figure 4 45 Removing the LCD module screws TFT NOTE Metal edges on the LCD module are sharp so be careful not to cut yourself 4 Carefully rotate the LCD module out of the LCD cover and lay it on the keyboard 430 Series 4 47 5 Disconnect the flexible cable from the LCD module and disconnect f
67. atic 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 Default is 30 minutes 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 system automatic power off xx Min Automatically turns off power to the system if it is not used for the duration set The duration xx can be set to 10 20 30 40 50 or 60 minutes LCD Brightness Use this option to set the level of LCD brightness Bright Full brightness for maximum visibility Semi Bright Less than full brightness for saving power Cooling method Performance _ If the CPU becomes too hot the fan is turned on automatically The CPU processing speed does not change When the CPU temperature falls to a normal range the fan is turned off Quiet Fan operation is disabled If the CPU becomes too hot the processing speed is lowered When the CPU temperature falls to a normal range the processing speed is increased d Alarm Volume Dsisables or sets the volume level of the alarm Setting this option to off disables the computer s sound function for alarms This option can also be set by hotkeys 4308 5 3 63 f g 3 64
68. attery Top cover with display assembly Sound board Membrane switch Speaker AC PS unit Infrared board System board Fan Microphone 4 4 Safety Precautions Before you begin disassembly read the following safety precautions and observe them carefully as you work 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 Throwing the battery pack into a fire could cause the battery pack to explode The power supply FL inverter and other components carry high voltages To avoid the risk of electric shock when you need to turn on the power of a partially disassembled computer to check its operation be very careful not to touch connectors or components Also do not disassemble individual components during first level maintenance WARNING To avoid the risk of electric shock or other injury 1 Always turn the power off and disconnect the AC power cord from the power source 2 Remove any metal jewelry or accessories such as necklaces bracelets or rings Batteries in the computer retain electrical charge so there is danger of electrical shock even when the computer is disconnected from an AC power source Never work with wet or damp hands The co
69. atus 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 6 Select the number of the subtest you want to execute and press Enter following message will appear during each subtest HARD DISK TEST XXXXXXX UB TEST XX ASS COUNT XXXXX ERROR COUNT XXXXX RI D TE DATA XX READ DATA XX DRESS XXXXXX STATUS gt The first three digits of the ADDRESS indicate which cylinder is being tested the fourth digit indicates the head and the last two digits indicate the sector The first digit of the STATUS number indicates the drive being tested and the last two digits indicate the error status code as explained in Table 3 2 Subtest 01 Sequential Read This subtest is a sequential reading of all the tracks on the HDD starting at track 0 When all the tracks on the HDD have been read the test starts at the maximum track and reads the tracks on the HDD sequentially back to track 0 Subtest 02 Address Uniqueness This subtest writes unique address data to each sector of the HDD track by track The data written to each sector is then read and compared with the original data There are three ways the HDD can be read Forward sequential Reverse sequential Random Subtest 03 Random Address Data This subtest writes random data to random addresses on the HDD cylinder head and sector
70. ay f Text Mode Stretch Hard Disk a HDD Mode Password I O Ports a Serial Port b Infrared Port c Parallel Port d Sound System Others a Power up Mode b CPU Cache c Battery Save Mode d Alarm Volume e System Beep f Panel Power On Off g Alarm Power On h Keyboard i Pointing Devices 0 Boot Priority 3 53 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 COMI 3F8H IRQ4 Base 640 Infrared Port Not Used Extended 15552 KB Parallel Port LPT1 378H IRQ7 CH3 Shadow BIOS ROM 192 KB Sound System Address IRQ DMA DISPLAY Display Adapter VGA compatible LCD Display Mode Color OTHERS VGA Segment Address E400H Power up Mode Resume LCD Display Colors 16M Colors CPU Cache Enabled Power On Display Internal External Battery Save Mode Full Power Text Mode Stretch Enabled Alarm Volume High System Beep Enabled r HARD DISK Panel Power On Off Disabled HDD Mode Enhanced IDE Normal Alarm Power On Disabled Keyboard Layout Fn r POWER ON PASSWORD Pointing Devices Auto selected Not Registered Boot Priority FDD HDD TLoe Select items Space BkSp Change values Esc Exit without saving Home Set default values End Save changes and Exit NOTES 1
71. 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 1 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 in Section 2 4 If an error is detected on the floppy disk test perform the floppy disk drive troubleshooting procedures in Section 2 5 If an error is detected on the hard disk test perform the hard disk drive troubleshooting procedures in Section 2 6 If an error is detected on the keyboard test perform the keyboard troubleshooting procedures in Section 2 7 If an error is detected on the display test perform the display troubleshooting procedures in Section 2 8 If an error is detected on the CD ROM test perform the CD ROM drive trouble shooting procedures in Section 2 9 430 Series 2 3 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 Battery Icon Check Procedure 3 AC PS Unit Replacement Check Procedure 1 AC IN Icon Check The AC PS unit converts AC power to DC power and contai
72. btest receives the data from the send side then sends the received data Subtest 05 Interrupt Test This subtest checks the Interrupt Request Level of IRQ 4 3 and 5 from the send side Subtest 06 Infra_red Wrap_around test NOTE Before conducting subtests 06 to 09 you must execute SIRDRV COM to enable the infrared communication port This subtest checks the data send receive function through the SIR port Subtest 07 Infra red Transmit mode NOTE To execute subtests 07 and 08 each computer must have access to the other computer s infrared port This subtest sends 20h through 7Eh data to the receive side then receives the sent data and compares it to the original data through the SIR port Subtest 08 Infra red Receive mode This subtest is used with subtest 07 described above This subtest receives the data from the send side then sends the received data through the SIR port 430 Series ee 3 23 3 11 Hard Disk Test To execute the Hard Disk Test select 8 from the DIAGNOSTIC TEST MENU press Enter and follow the directions displayed on the screen The hard disk test contains ten subtests that test the hard disk drive functions NOTE The contents of the hard disk will be erased when subtest 02 03 04 05 06 08 09 or 10 is executed Before running the test transfer the contents of the hard disk to floppy disk 1 If MS DOS 6 22 Windows for Workgroups is selected use the Master Diskette Creator MDC utility
73. can damage either the threads on the screw or the head of the screw and may prevent proper seating of an FRU After installing an FRU in the computer confirm that the FRU and the computer are function ing properly 430 Series 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 Q Q One M2 Phillips screwdriver to remove and replace screws Tweezers to lift out screws that you cannot grasp with your fingers ESD mats for the floor and the table you are working on An ESD wrist strap or heel grounder Anti static carpeting or flooring Air ionizers in highly static sensitive areas Screw Tightening Torque When you fasten screws be sure to follow the torque list below Overtightening can damage components and screws undertightening can result in electrical shorts or other damage if screws or components come loose Q Q Q Q M2 0 22 N m 2 2 kgf cm 2 5 0 36 N m 3 5 kgf cm FDD 0 22 N m 2 2 kgf cm HDD 0 3 N m 3 1 kgf cm or less 430 Series 2 5 4 2 Battery Pack Removing the Battery Pack To remove the battery pack follow
74. ch 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 Figure 1 7 CD ROM drive The specifications for the CD ROM drive are listed in Table 1 3 Table 1 3 CD ROM drive specifications 1X mode 10X ave mode Data Capacity bytes block Mode 1 2 048 Mode 2 2 336 Rotational Speed rpm 200 to 530 2 200 to 3 500 Transfer Rate Sustained Block Transfer blocks s 75 750 Sustained Data Transfer Kbytes s Mode 1 1 200 Mode 2 1 710 ATAPI Burst Mbytes s 8 33 PIO mode 2 Access Time ms Average Random Access Average Random Seek Average Full Stroke Access Data Buffer Capacity Kbytes 430 Series 4141 1 7 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 A display controller is F65550 This controller enables an LCD display of a maximum 64K colors The DSTN LCD is shown in Figure 1 8 Figure 1 8 DSTN color LCD The specifications for the LCD are listed
75. ch with a new one and test the display again If the problem still exists perform Check 5 Replace the display cable with a new one and test the display again If the problem still exists perform Check 6 The system board or VGA board may be damaged Replace it with a new one 430 Series 2 9 CD ROM Drive Troubleshooting This section describes how to determine if the 430 series internal CD ROM drive is function ing properly Perform the steps below starting with Procedure 1 and continuing with the other procedures as required Procedure 1 CD Cleaning Check Procedure 2 Diagnostic Test Program Execution Check Procedure 3 Connector Check and Replacement Check Procedure 1 Cleaning Check Clean the laser pickup lens with a lens cleaner Apply the cleaner to a cloth and wipe the lens If the CD ROM drive still does not function properly after cleaning go to Procedure 2 Procedure 2 Diagnostic Test Program Execution Check The CD ROM drive Diagnostic Test program is stored on the 430 series Diagnostics Disk 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 If any other errors occur while executing the CD ROM drive diagnostics test go to Procedure 3 Procedure 3 Connector Check and Replacement Check
76. controller controls internal TFT DSTN color LCD and external SVGA compatible CRT Keyboard Controller KBC One M38802MA 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 AccuPoint Controller IPSC One KPAAC0062A chip is used This controller provides simultaneous control of both the AccuPoint and a PS 2 mouse Real Time Clock RTC One T9934 chip is used The T9934 has 128 bytes of memory Fourteen bytes of memory are used for the calendar and clock The remaining 114 bytes are used for the system configuration data 430 Series 1 7 1 3 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 The 430 series FDD is shown in Figure 1 4 Figure 1 4 3 5 inch FDD The specifications for the FDD are listed in Table 1 1 Table 1 1 3 5 inch FDD specifications Storage capacity KB Unformatted Formatted Number of heads 2 Number of cylinders 80 Access time ms Track to track 3 Average 181 181 Head settling time 15 15 Recording track density tpi 135 135 Data transfer rate Kbps 500 250 Rotation speed rpm 300 300
77. ction 2 3 Does the Battery icon glow Yes Turn the Power Switch on while holding down the space key Yes Perform the Power Supply Troubleshooting Procedures in section 2 3 Does the AC IN icon flash Perform the System Board Troubleshooting Procedures in section 2 4 Is an error message displayed Is the MEMORY TEST XXXKB message displayed Perform the Display Troubleshooting Procedures in section 2 8 Perform the System Board Troubleshooting Procedures in section 2 4 MEMORY TEST XXXKB message proceed from OKB to 640KB Yes If the Password message displays type the password then press ENTER Is Toshiba MS DOS being loaded Perform the Hard Disk Drive Troubleshooting Procedures in section 2 6 Figure 2 1 Troubleshooting flowchart 2 3 Perform the Keyboard Troubleshooting Procedures in section 2 7 Do typed characters appear correctly Perform the Floppy Disk Drive Troubleshooting Procedures in section 2 5 After confirming which diagnostic test has detected an error perform the appropriate procedures as outlined below is an error detected by any of the diagnostics tests No System is normal Figure 2 1 Troubleshooting flowchart Continued If the diagnostics program cannot detect an error the problem may be intermittent The Running Test program should
78. ctions 3 19 through 3 25 for detailed information on the remaining Service Program Module functions 32 M 430 Series 3 2 Executing the Diagnostic Test Toshiba MS DOS is required to run the DIAGNOSTICS PROGRAM To start the DIAG NOSTIC PROGRAM follow these steps 1 Insert the Diagnostics disk in the floppy disk drive and turn on the computer The Diagnostics disk contains the MS DOS boot files NOTE To execute the CD ROM test make sure the CD ROM and CD ROM drive are installed in the computer and the external FDD is attached to the FDD port The following menu will appear TOSHIBA personal computer xxx DIAGNOSTICS version X XX c copyright TOSHIBA Corp 19XX DIAGNOSTICS MENU DIAGNOSTIC TEST HARD DISK FORMAT HEAD CLEANING UTILITIES RUNNING TEST FDD UTILITIES SYSTEM CONFIGURATION EXIT TO MS DOS 0 SETUP 1 4 CO p Select items Enter Specify Esc Exit NOTE To exit the DIAGNOSTIC TEST MENU press the Esc key If a test program is in progress press Ctrl Break to exit the test program or press Ctrl C to stop the test program 430 Series Aap SC 339 2 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 compute
79. cure four M2 5x6 screws on the LCD module Make sure the ground cable is secured at the lower left corner 6 Install the FL inverter board display mask optional memory module optional PC card and battery pack as described in Sections 4 18 4 16 4 4 4 3 and 4 2 4 50 MM M 130 Series 4 21 FL 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 1 Turn off the power to the computer Disconnect the AC power cord and all external cables connected to the computer 2 Remove the battery pack optional memory module optional PC card display mask FL inverter board and LCD module as described in Sections 4 2 4 3 4 4 4 16 4 17 and 4 19 3 Place the FL face down and remove two M2x3 5 silver screws 4 Use a thin object to release two latches and remove the gold protective tape 5 Slide the metal cover to the left and remove it 6 Remove two M2x5 5 silver screws two M2x3 5 silver screws and one M2x2 3 black screw from the LCD PCB 7 Remove the tape and disconnect the LCD PCB connected by a flexible cable fron CN2 on the LCD module M2x3 5 silver screws M2x5 5 silver amp Screw Metal FL cover Goes under edge of LCD PCB LCD PCB O
80. display mask and FL inverter board as described in Sections 4 2 4 3 4 4 4 16 and 4 18 NOTE Support the back of the display with your hand when you remove the SCrews Remove four M2 5x6 screws securing the LCD module to the LCD cover The screw at the lower left corner also secures the ground cable LCD module M2 5x6 screws M2 5x6 screws Ground cable Figure 4 47 Removing the LCD module screws DSTN NOTE Metal edges on the LCD module are sharp so be careful not to cut yourself Carefully rotate the LCD module out of the LCD cover and lay it on the keyboard Disconnect the flexible cable from CN IN on the LCD module then disconnect three display cables from PJ2 PJ3 and PJ4 on the flexible cable 4 49 6 Remove the shielded tape securing the display cables to the LCD cover Display cables O Shielded tape Flexible cable CN IN 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 1 Secure the display cable to the LCD cover with shielded tape 2 Connect the flexible cable to CN IN on the LCD module 3 Connect the display cables to PJ2 PJ3 and PJ4 on the flexible cable 4 Carefully rotate the LCD module into the LCD cover Be sure the flexible cable fits into the plastic protector NOTE Support the back of the display with your hand when you secure the screws 5 Se
81. double track 2HD Tracks 0 to 79 The start track is specified when the FDD test is started from the Diagnostic Test Menu Refer to step 3 at the beginning of this section to set the start track Sequential Read Write This subtest continuously writes data pattern BSADADh to all the specified tracks selected in subtest O1 The data is then read and compared to the original data Random Address Data This subtest writes random data to random addresses on all tracks defined in subtest 01 The datais then read and compared to the original data Write Specified Address This subtest writes specified data to a specified track head and address Read Specified Address This subtest reads data from a specified track head and address 3 19 3 9 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 The following message will appear when the printer test is selected 1 1 XXXXh channel 2 XXXXh channel 3 XXXXh Select the channel number 1 3 The printer I O port address is specified by the XXXXh number The computer supports three printer channels Select the printer channel number and press Enter to execute the selected subtest
82. e Wait line 40 lt xx lt 80 Other lines BSY BVD1 nn 21 00 Subtest 02 PCMCIA wraparound External This test checks the signal lines of the Enhanced Port Replicator PC card slots Procedures for conducting this test are the same as for subtest 01 PCMCIA wrap around Internal described above 3 30 430 Series 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 WARNING The system is capable of producing high volume sound so when you use the headphones be careful to set the volume low and adjust it as necessary Using the headphones at full volume could damage your ears Subtest 01 CODEC REC PLA Y This subtest tests the functions of the Codec ES688 A D D A converter At the same time it tests the microphone terminals and Headphone terminals When you execute this subtest the following message is displayed Quick REC amp PLAY for ES488 688 Press any key to REC After pressing a key start recording and immediately play the sound It takes three seconds Subtest 02 FM Synthesizer This subtest tests the OPL YMF262 functions Connect the headphone and check the scale of the right
83. e back of the display with your hand when you remove the screws 4 Remove four M2 5x6 screws that were covered by the seals and cushions Rubber cushions M2 5x6 screws Display mask M2 5x6 screws Seals Figure 4 4 Removing the seals cushions and screws 430 Series 41 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 Figure 4 42 Removing the display mask Installing the Display Mask To install the display mask follow the steps below and refer to Figures 4 42 and 4 41 1 4 42 Set the display mask in place and secure the latches beginning with four latches at the top of the display mask Continue along the sides four latches on each side and bottom of the display four latches NOTE Support the back of the display with your hand when you secure the screws Secure the display mask with four M2 5x6 screws Attach the two seals and two rubber cushions to cover the screws Install the optional PC card optional memory card and battery pack as described in Sections 4 4 4 3 and 4 2 430 Series 4 17 Fluorescent Lamp FL Inverter Board Removing the FL Inverter Board TFT To remove the FL inverter board follow the steps below and refer to Figure 4 43 1 Turn off powe
84. ed Data Error Drive Not Ready Seek Error Time Out Reset Error Address Error 3 36 230 Series 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 The first four digits represent the hard disk controller HDC error status number and the last four digits are not used The hard disk controller error status is composed of 2 bytes the first byte displays the con tents of the HDC status register in hexadecimal form and the second byte displays the HDC error register The contents of the HDC status register and error register are listed in Tables 3 3 and 3 4 Table 3 3 Hard disk controller status register contents Description BSY 0 HDC is ready Busy 1 HDC is busy DRDY 0 Hard disk drive is not ready to accept any command Drive ready 1 Hard disk drive is ready to accept any command DWF 0 DWF error is not detected Drive write fault 1 Write fault condition occurs DSC 0 The hard disk drive heads not settled over a track Drive seek 1 The hard disk drive heads are settled over a track complete DRQ 0 Drive is not ready for data transfer Data request 1 Drive is ready for data transfer CORR 0 Not used
85. efresh Protected mode Memory module Cache memory KEYBOARD Pressed key display Pressed keycode display PS 2 Mouse connect check Pointing stick DISPLAY VRAM read write for VGA Gradation for VGA Gradation for LCD Gradation amp Mode test for VGA All dots on off for LCD H pattern display Sequential read Sequential read write Random address data Write specified address Read specified address PRINTER Ripple pattern Function Wraparound 3 6 4030 Series Table 3 1 Subtest names Continued Testname Subtest No Subtest item Wraparound board Board 1 lt gt 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 amp peak shift Write read compare CE Write specified address Read specified address ECC circuit Sequential write W R C specified address REAL TIMER Real time Backup memory Real time carry NDP NDP test EXPANSION PCMCIA wrap around Internal PCMCIA wrap around External SOUND CODEC REC PLAY FM Synthesizer SINE wave playback Joystick Joystick MIDI wrap around CODEC Line In Out 430 Series Sequential read Read specified address Random address data Playback Music 3 7 3 4 System Test To execute the System Test select
86. en erroneously formatted as a bad track you can use this subtest to reformat the track as a good track To format a track as a good track enter the number for drive interleave cylinder and head as indicated in the screen prompt shown below Drive number select 1 41 2 42 Interleave number 1 1 8 Press Cylinder number dddd Press Head number dd Press Enter to return to the Hard Disk Format menu 3 42 430 Series 3 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 4 track CHECK This subtest reads the entire disk and displays a list of bad tracks The test is terminated in case of a bad track check error To initiate the subtest enter the drive number at the prompt shown below Drive number select 1 41 2 42 Bad tracks will be displayed in the format shown below cylinder head 0123 03 Press Enter to return to the Hard Disk Format menu 430 Series 03 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 1 3 44 Operations
87. eries and then perform the following checks Check 1 Replace the AC PS unit with a new one and restart the system If the system is still not functioning properly perform Check 2 Check 2 Replace the system board with a new one and restart the system If the problem still exists other FRUs may be damaged 2 6 M 40 Series 2 4 System Board and Sound Board Troubleshooting This section describes how to determine if the system board and sound board are defective or not functioning properly Start with Procedure 1 and continue with the other procedures as instructed The procedures described in this section are Procedure 1 Procedure 2 Procedure 3 Procedure 4 Procedure 5 Message Check Printer Port LED Check on Boot Mode Printer Port LED Check on Resume Mode Diagnostic Test Program Execution Check Replacement Check Procedure 1 Message Check When the power is turned on the system performs the Initial Reliability Test IRT installed in the BIOS ROM The IRT tests each IC on the system board and initializes it If an error message is shown on the display perform Check 1 If there is no error message go to Procedure 2 Q 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 These errors occur when data is lost or the system configura tion preserved in the RTC memory CMOS type memory
88. ery cover and push it closed Be sure the battery latch is securely closed 4 Push the battery cover lock to secure the cover Battery cover lock Battery cover Figure 4 3 Installing the battery pack cover 430 Series 7 4 3 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 1 Turn off the power to the computer Disconnect the AC power cord and all external cables connected to the computer 2 Remove the battery pack as described in Section 4 2 3 Pull out the eject button and press it the top button for the top card and the bottom button for the bottom card The card will pop out slightly for removal Figure 4 4 Removing the PC card 48 430 Series Installing an Optional 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 1 Turn off the power to the computer Disconnect the AC power cord and all external cables connected to the computer 2 A pair of flaps protects the PC slot Insert the PC card through these flaps as shown in Figure 4 5 Eject button Figure 4 5 Installing the PC card 3 When the card is almost fully seated you will feel some resistance Press gently to assure a firm connection but do not force the card into position 4
89. est 02 03 04 05 06 08 09 or 10 is executed Before running the test transfer the contents of the hard disk to floppy disk 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 com mand in the Toshiba Companion Utility to back up the entire disk including the user s files 2 If Windows 95 is selected check to see if the Microsoft Create System Disks Tools MSCSD EXE still exists in the System Tools Folder This tool can be used only once If it exists use it to back up the preinstalled software then use the Backup utility in the System Tools folder to back up the entire disk including the user s files Refer to the operating system instructions for more information 430 Series 49 3 19 1 3 40 Function Description All track FORMAT This option performs a low level format of all the tracks on the hard disk as shown in Table 3 5 below NOTE Before executing the all track format option check for bad tracks using the Bad Track CHECK option or display a list of bad tracks on the HDD Table 3 5 Hard disk formatting sequence Toshiba IBM Seagate MK1301MAV DMCA 21440 ST91350AG Formatted capacity byte 1 358 880 768 1 445 068 800 1 350 107 136 Number of disks 3 2 3 Logical heads 16 16 16 Logical cylinders Bytes per
90. etal cover and secure it with three M2 5x6 screws Make sure the plastic tab on the LED connector is under the metal cover NOTE If the unit under repair has a keyboard connector cover that slides along the keyboard cable then first thread the keyboard cable through the hole in the keyboard connector cover The metal cover for this kind of connector has four M2 5x6 screws Metal tab Plastic tab Metal tab Metal cover Figure 4 21 Seating the metal cover 3 Fit the keyboard connector cover on the metal cover and secure it with two M2 5x6 screws or one M2 5x6 screw w washer if the unit has a sliding connector cover 4 Replace the tape 5 Fittabs on the back of the keyboard into corresponding holes on the computer and lay the keyboard in place 6 Secure six latches on the back of the keyboard base two latches at the ends and six latches along the front 7 Install the 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 4 22 430 Series 4 9 Sub Battery and VGA Board Removing the Sub Battery and VGA Board To remove the sub battery and VGA board follow the steps below and refer to Figures 4 22 to 4 25 1 Turn off the power to the computer Disconnect the AC power cord and all external cables connected to the computer 2 Remove the battery pack optional PC card
91. evel and I O address to the serial port and infrared port b Infrared Port This option allows you to set the COM level for the infrared port 430 Series 430 Series c The infrared port interrupt request level IRQ and I O port base address for each COM level is shown below level Interruptlevel 1 O address 1 4 3F8h COM2 3 2F8h COM3 4 3E8h 5 3E8h 7 3E8h COM4 3 2E8h 5 2E8h 7 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 Parallel Port This option sets the interrupt request level IRQ and I O port base address for the parallel port The options are shown below LPTsetting Interruptlevel l Oaddress LPT1 7 378h Parallel port default LPT2 5 278h LPT3 7 3BCh Not used Disables port When you select one of the above options except for Not used a subwindow similar to the one below appears to let you set the parallel port mode and DMA channel Mode Use this option to set the parallel port mode from among the following settings ECP Default Std Bi Directional DMA channel When the parallel port mode is set to ECP the DMA channel can also be set from among the following settings Chl Ch2 Default 3 59 d Sound system This item allows you to enable or disable the sound card ports Address IRQ DMA Enables port Default
92. f they are dirty clean them If a connector is broken replace the VGA board or system board with a new one 2 sure the microphone cable is on top of the VGA board and rotate the board into place When it is seated flat press evenly to connect the VGA board connector to PJ16 on the system board 3 Connect the microphone cable to PJ3 on the sound board Route the cable in a groove on the top cover and secure it with two tapes 4 Seat the sub battery and connect the cable to PJ503 on the system board CAUTION Be sure to connect the sub battery connector to the white socket not the orange one The orange socket PJ10 is for the panel close sensor cable If these connectors are switched the system will be damaged 430 Series A oe S24 5 Use a multimeter to measure TP2 and ground voltage according to the following value TP2 6 0 Vto8 0 V If the voltage is too low replace the sub battery with a new one TP2 Ferrite core Figure 4 26 Measuring the voltage at TP2 6 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 4 26 M 430 Series 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
93. 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 Subtest 01 Real Time A new date and time can be input during this subtest To execute the real time subtest follow these steps 1 Select subtest 01 and the following message will appear date XX XX XXXX time XX XX XX Current Current Enter new date PRESS ENTER KEY TO EXIT TEST 2 current date is not correct input the correct date at the Enter new date prompt and press Enter The following prompt will appear Enter new time 3 Ifthe current time is not correct input the correct time in 24 hour format Pressing Enter toggles between the time and the date To exit press Ctrl Break Subtest 02 Backup Memory This subtest performs the following backup memory check Writes 1 bit of on data to address 01h through 80h Writes 1 bit of off data to address OEh through 80h Writes the data pattern AAh and 55h to the RTC 114 byte memory address OEh to 7Fh The subtest reads and compares this data with the original data To exit press Ctrl Break 430 Series Ao 3 27 Subtest 03 3 28 Real Time Carry CAUTION When this subtest is executed the current date and time are erased This subtest
94. ges 1 through 19 26 or 27 is displayed replacethe system board If error message 20 is displayed go to the Keyboard Troubleshooting Proce dures in Section 2 7 If error message 21 22 or 23 is displayed go to the HDD Troubleshooting Procedures in Section 2 6 430 Series 430 Series If error message 24 or 25 is displayed go to the FDD Troubleshooting Proce dures in Section 2 5 1 Q 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 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 VRAM ERROR SYSTEM MEMORY ERROR SYSTEM MEMORY PARITY ERROR EXTENDED MEMORY ERROR EXTENDED MEMORY PARITY ERROR DMA PAGE REGISTER ERROR DMAC 1 ERROR DMAC 2 ERROR PIC 1 ERROR PIC 2 ERROR KBC ERROR HDC ERROR HDD 0 ERROR HDD 1 ERROR NO FDD ERROR FDC ERROR TIMER INTERRUPT ERROR RTC UPDATE ERROR 2 9 Procedure 2 Printer Port LED Check 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 2 10 1 2 Turn on the power then set to boot mode T
95. go to the FDD Troubleshooting Procedures in Section 2 5 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 1 Turn on the power then set to resume mode 2 Turn off the power 3 Plug the printer port LED into the parallel port 4 Turn on the power 5 Read the LED status from left to right as you face the back of the computer 6 Convert the status from binary to hexadecimal notation 7 Ifthe final LED status is FFh normal status go to Procedure 3 8 Ifthe final LED status matches any of the test status values in Table 2 2 perform Procedure 5 21 7305 5 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 Procedure4 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 NDP test Expansion test Sound test CD ROM test S790 OO C
96. he video RAM and compared to the original data Subtest 02 Gradation for VGA This subtest displays four colors red green blue and white from left to right across the screen from black to maximum brightness The display below appears on the screen when this subtest is executed To exit this subtest and return to the DISPLAY TEST menu press Ctrl Break then press the Enter key Subtest 03 Gradation for LCD This subtest displays eight colors red semi red green semi green blue semi blue white and semi white Each color is displayed full screen for three seconds 3 14 i 430 Series Subtest 04 Gradation amp Mode test for VGA This subtest displays gradations for each mode Execute the test then press Enter to change the mode LCD type 3 12 13 43 52 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 4305 5 8 15 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 Subtest 05 All dots on off for LCD This subtest displays an all white screen all dots on for three seconds then an all black screen all dots off for three seconds To exit t
97. hen ready Remove the Diagnostics Disk from the FDD insert the work disk and press any key The following message will be displayed when the FDD format is executed FDD TYPE TRACK XXX FDD TYPE HEAD X FDD TYPE SECTOR XX Format start track head XXX X After the floppy disk is formatted the following message will appear Format complete Another format 1 Yes 2 No Typing 1 displays the message from step c above Typing 2 returns the test to the DIAGNOSTIC MENU 3 COPY program a b c 3 50 When COPY is selected the following message appears FLOPPY DISK FORMAT amp COPY VX XX Type select 0 2DD 2DD 1 2D 2D 2 2D 2HD 3 2HD 2HD Selecting a media drive type number will display a message similar to the one below Insert source disk into drive A Press any key when ready Remove the Diagnostics Disk from the FDD insert the source disk and press any key The following message will appear indicating the program has started FDD TYPE TRACK XXX FDD TYPE HEAD X FDD TYPE SECTOR XX Copy start track head XXX X 430 Series 430 Series d 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
98. his subtest and return to the DISPLAY TEST menu press Ctrl Break 3 16 _ 430 Series Subtest 06 430 Series H pattern display This subtest displays a full screen of 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 3 17 3 8 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 The Floppy Disk test contains five subtests
99. ies 417 Procedure2 Message Check When the HDD does not function properly some of the following error messages may appear on the display Start with Check 1 below and perform the other checks as instructed Check 1 If any of the following messages appear perform Check 2 If the following messages do not appear perform Check 4 HDC ERROR After 5 seconds this message will disappear Or HDD 0 ERROR After 5 seconds this message will disappear Or HDD 1 ERROR After 5 seconds this message will disappear Check2 If either of the following messages appears perform Procedure 3 If the following messages do not appear perform Check 3 Insert system disk in drive Press any key when ready or 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 Restart the 430 series If the error message still appears perform Check 4 System transferred Check 4 The HDD is connected to the system board directly This connection can become disconnected or damaged Disassemble the 430 series as described in Chapter 4 Replacement Procedures If the HDD is not connected connect it to the system board and return to Procedure 1 If the HDD is firmly connected to the system board perform Procedure 3 System
100. ith 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 Keyboard An easy to use 82 84 key keyboard provides a numeric keypad overlay for fast numeric data entry or for cursor and page control The keyboard supports software that uses a 101 or 102 key enhanced keyboard Batteries Three different batteries a lithium ion Li Ion main battery a backup battery for memory backup and an RTC battery for Real Time Clock 430 Series 44 1 2 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 This port can be used to connect such serial devices as a serial printer serial mouse or external modem External monitor port The female 15 pin D shell connector can be connected to an external SVGA moni tor PS 2 mouse keyboard port Either a PS 2 compatible keyboard or a PS 2 compatible mouse can be connected to this port The computer automatically recognizes which device is connected FDD
101. lly turn off the system This feature operates in either Resume or boot mode 430 Series 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 h Keyboard This option lets you change the keyboard layout and set the Fn key equiva lent when you are using an external keyboard Selecting this option displays the following subwindow Keyboard Int Keyboard key layout Normal Ext Keyboard FN key equivalent Disabled Int Keyboard layout This option lets you select the arrangement of the Caps Lock Ctrl and Alt keys according to the following illustrations Normal default Alternative Ext Keyboard 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 Fn key equiva lent will enable you to use Hotkeys by pressing the set combination in place of the Fn key Disabled Fn key equivalent Default Fn Equivalent Left Ctrl Left Alt Right Ctrl Right Alt Left Alt Left Shift Right Alt Right Shift Left Alt Caps Lock If these selections are made you cannot warm boot the system by pressing Ctrl Alt Del 430 Series 3 65 i Pointing Devices Enables or disables
102. ly to engage latches 5 Slowly insert the FDD module into the computer Be careful to insert the drive straight and press gently so the drive is flush with the computer 6 Hold the FDD module flush to the computer and push the lever down until it snaps into place 7 Lock the release lever lock 8 Install the optional memory module optional PC card and battery pack as described in Sections 4 4 4 3 and 4 2 4 14 MM 430 Series 4 6 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 1 6 430 Series 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 Turn the computer upside down Press the release lever lock to unlock the release lever Pull up on the lever to release it Then raise it gently until the CD ROM drive module pops out slightly Don t force the lever back too far Figure 4 14 Removing the CD ROM drive module Grasp the drive and pull it out 4 15 7 Remove four M2x3 screws and three M2x6 screws securing the frame to the CD ROM drive M2x3 screws M2x3 screws Figure 4 15 Removing the screws 8 Release two latches and remove the front cover 9 Disconnect the flexible cable f
103. mally Use only the correct and approved tools Make sure the working environment is free from the following elements whether you are using or storing the computer Q Dust and contaminates Q Static electricity Extreme heat cold and humidity Make sure the FRU you are replacing is causing the abnormal operation by preforming the necessary diagnostics tests described in this manual Do not perform any unnecessary operations and use only the described procedures for disassembling and installing FRUs in the computer After removing parts from the computer place them in a safe place away from the computer so they will not be damaged and will not interfere with your work You will remove and replace many screws when you disassemble the computer When you remove screws make sure they are placed in a safe place and are identified with the correct parts When assembling the computer make sure you use the correct screws to secure the various pieces in place Screw sizes are listed in the corresponding figures The computer contains many sharp edges and corners so be careful not to injure yourself After you have replaced an FRU make sure the computer is functioning properly by performing the appropriate test on the FRU you have fixed or replaced 4 3 Disassembly Procedures The computer has three basic types of cable connectors Pressure Plate Connectors L Normal Pin Connectors L Flexible Cable Connectors To disc
104. mputer contains many sharp edges and corners so be careful not to injure yourself Make sure that all replacement components meet the specifications for the computer and that all cables and connectors are securely fastened CAUTION To avoid damage to the computer 1 When you change a component be sure the replacement component meets the required specifications 2 Metal objects such as screws or paper clips which fall into the unit can cause short circuit fire or other internal damage 3 When assembling the computer make sure you use the correct screws to secure the various pieces in place Screw sizes are listed in the corresponding figure Make sure all screws are securely fastened Loose screws can cause short circuits resulting in heat smoke or fire 4 Before removing an FRU or other component make sure all cables to the component have been disconnected 5 Ifyou use AC power be sure to use the cable that came with the computer or one recommended by Toshiba 42 MM 430 Series 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 1 2 10 430 Series Do not disassemble the computer unless it is operating abnor
105. mputer is shown in Figure 1 1 Figure 1 1 430 series personal computer The 430 series system configuration is shown in Figure 1 2 Sub Battery AC PS Unit LCD Sensor Infrared IrDA Port System Board Int FDD or CD ROM LED Board AccuPoint Control PJ7 PJ19 PJ18 PJ501 0 RTC Battery Pack Keyboard Battery Int HDD Int PJ401 nt icai pJ408 PJ49 EMIE Figure 1 2 430 series system unit configuration 430 Series 1 13 1 2 System Unit Block Diagram Figure 1 3 is a block diagram of the 430 series system unit 1 4 B05 sy BAM p E di SISGNT G vH BEY VIAM 15 45M VCC BOund Powar supply 5V dica HOM microprocessor i ERBI RAMS Merry 3 3M GCPUV CPU 12 8 Bay CPU pav Pentium 120 m Merry o fid hil optienal Memory pav Dv SCPCNT GG A amy TFT cede CT HAV psy FESAI USTN sulur LCD 32 bit 18 bil video signals B Gard Slot BV 1 PC Tand Cont with V port ay 4 bit audio signals 4 2 TEW23A 5 2 x c Pc x 1 Sox 2 VEC Dua Enhanced Part Gallery HOM IFS cont PE Cun GA PC nud
106. n 2 Seat the holder assembly and plastic cover then secure them with two M2 5x6 screws 3 Seat the AC PS unit Be sure to fit the AC PS unit s plastic cover into the notch on the holder assembly 4 Secure the tape to the plastic plate and the AC PS unit Make sure the tape is placed just above the word CAUTION 5 Secure the AC PS unit with one M2 5x10 screw 6 Connect the AC PS unit cable to PJ502 and secure the cable on the left side of PJ16 with tape 7 the battery terminal cover in place two pins should stick through and secure it with one M2 5x6 screw 8 Install the speaker sound board top cover with display assembly RTC battery sub battery VGA board keyboard HDD FDD or CD ROM drive optional memory module optional PC card and battery pack as described in Sections 4 12 back through 4 2 4 36 MM M 430 Series 4 14 Infrared Board Removing the Infrared Board To remove the infrared board follow the steps below and refer to Figure 4 38 1 430 Series 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 Sections 4 2 through 4 13 Remove one M2 5x4 screw securi
107. n 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 1 430 Series 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 NOTE Do not touch the connectors on the memory module or on the computer Debris on the connectors may cause memory access problems Place your fingers above the connector and press firmly but gently to assure a solid connection The module should be seated level Secure the module to the brace with two M2x4 screws Connector Figure 4 8 Installing the memory module If the memory module has a plastic tab fold it down first then lay the cover in place Secure it with two silver M2x4 screws Install the battery pack and optional PC card as described in Sections 4 3 and 4 2 NOTE There are two holes for the screw securing the memory module on one side When the module is installed use the inside hole to secure the module Otherwise secure the screw to the outside hole Figure 4 9 Securing the screw 4 11 4 5 Floppy Disk Drive FDD Removing the FDD To remove the FDD follow the steps below and refer to Figures 4 10 to 4 13 1 Turn off the power to the computer Disconnect the AC power cord and all external cables connected to the computer 2 Rem
108. n and secure three M2 5x8 silver screws and four M2 5x6 screws Install the sub battery VGA board keyboard HDD FDD or CD ROM drive optional memory module optional PC card and battery pack as described in Sections 4 9 back through 4 2 4 29 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 1 Turn off the power to the computer Disconnect the AC power cord and all external cables connected to the computer 2 Remove the battery pack optional PC card optional memory module FDD or CD ROM drive HDD keyboard sub battery VGA board RTC battery and top cover with display assembly as described in Sections 4 2 through 4 10 3 Remove five M2 5x6 screws one w washer and one M2 5x4 screw securing the sound board cover HDD metal cover and Selectable Bay ground plate 4 Remove the sound board cover HDD metal cover and Selectable Bay ground plate M2 5x4 screw Sound board cover M2 5x6 screws M2 5x6 screw HDD metal cover washer Selectable ground plate Figure 4 31 Removing the sound board cover 430 430 Series 5 Remove the tape from the speaker cable and disconnect the speaker cable from PJ6 on the sound board 6 Disconnect the sound board power cable from PJ9 on the sound board 7 Disconnect the
109. nd set it on the wrist rest 5 Remove tape from the keyboard connector cover 6 Remove two M2 5x6 screws securing the keyboard connector cover and remove it NOTE Some units may have a keyboard connector cover that slides over the keyboard cable If so do the following 1 Remove one M2 5x6 screw and slide the cover along the keyboard cable enough to access the keyboard connector 2 Remove four M2 5x6 screws holding the metal cover and lift it out 3 Continue with Step 8 4 20 M 430 Series 7 Remove three M2 5x6 screws securing the metal cover and lift out the metal cover Keyboard connector Keyboard cable Figure 4 19 Removing the metal cover 8 Disconnect the keyboard cable from PJ13 on the system board and lift out the keyboard Keyboard cable 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 430 Series 421 Installing the Keyboard To install the keyboard follow the steps below and refer to Figures 4 21 back to 4 18 1 Connect the keyboard cable to PJ13 on the system board Make sure the cable connection is secure 2 Fit the two tabs of the metal cover into the top cover and backup battery base see Figure 4 21 then seat the m
110. ng the infrared board Disconnect the infrared board cable from PJ101 on the infrared board Slide the infrared board clear of the notch on the computer and lift out the board Remove the tape securing the infrared board cable inner harness and disconnect it from PJ17 on the system board Infrared board cable M2 5x4 screw inner harness Infrared board Figure 4 38 Removing the infrared board 4 37 Installing the Infrared Board To install the infrared board follow the steps below and refer to Figure 4 38 4 38 1 Replace the tape and connect the infrared board cable inner harness 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 Secure the board with one M2 5x4 screw Install the AC PS unit speaker sound board top cover with display assembly RTC battery sub battery VGA board keyboard HDD FDD or CD ROM drive optional memory module optional PC card and battery pack as described in Sections 4 13 back through 4 2 430 Series 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 1 Turn off the power to the computer Disconnect the AC power cord and all external cables connected to the computer 2 Remove the battery pack optional PC card optional memory module FDD or CD ROM drive HDD keyboard sub ba
111. ns a charging circuit which charges the 430 series batteries The AC power cord connects to the AC IN socket connector on the back side of the computer When the AC power cord is connected to the 430 series the AC PS unit charges the batteries The AC IN icon displays whether or not the AC power cord is connected and supplying power When the AC IN icon is green the AC power cord is connected and supplying power to the 430 series If the AC IN icon does not light the AC power cord is not supplying power to the 430 series or the AC power cord is not attached to the 430 series go to Check 1 If the AC IN icon is flashing orange the AC power cord voltage supply is abnormal or the power supply is not functioning properly go to Check 2 If any of the above indicator conditions are abnormal make sure the icon lights are not burned out before performing the following checks Check sure the correct AC power cord is firmly plugged into the AC IN socket on the back of the computer Check 2 Ifthe AC IN icon flashes orange when the AC power cord is connected output voltage is abnormal Connect a new AC power cord and turn the 430 series on again to verify the indicator condition Check 3 battery pack may be malfunctioning Replace the battery pack with a new one and turn the computer on again If the problem still exists go to Procedure 2 430 Series 25 Procedure 2
112. o clear the sound jack M2 5x8 screw LED cable M2 5x6 screw Panel close sensor cable Ground cable Figure 4 29 Removing the top cover with display assembly 4 28 M 430 Series Installing the RTC Battery 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 1 430 Series Seat the top cover and display assembly then secure two latches at the back of the computer and four latches at the front Be careful to seat the left front corner over the sound jacks Connect the LED cable to PJ14 Make sure the cable connection is secured with the pressure plate Connect the panel close sensor cable to PJ10 on the system board CAUTION Be sure to connect the panel close sensor cable to the orange socket not the white one The white socket PJ503 is for the sub battery cable If these connectors are switched the system will be damaged Secure the ground cable with one M2 5x6 screw on the system board Secure the sub battery base with one M2 5x8 screw Connect the Real Time Clock battery to PJ3 on the system board Using the multimeter measure the voltage on the test point of PJ3 2V to AV If the voltage is too low replace the RTC battery with a new one Test point Figure 4 30 Measuring the voltage at PJ3 Turn the computer upside dow
113. odule FL inverter board display mask optional PC card optional memory module and the battery pack as described in Sections 4 20 4 18 4 16 4 4 4 3 and 4 2 4305 88 5 5 455 4 23 Microphone Removing the Microphone To remove the microphone follow the steps below and refer to Figure 4 53 1 Turn off the power to the computer Disconnect the AC power cord and all external cables connected to the computer 2 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 3 Lift out the microphone Microphone Figure 4 53 Removing the microphone 4 Carefully pull the microphone cable through the upper cover Installing the Microphone To install the microphone follow the steps below and refer to Figure 4 53 1 Carefully route the microphone cable through the upper cover 2 Seat the microphone 3 Install the FL LCD module FL inverter board display mask top cover with display assembly keyboard optional memory module optional PC card and battery pack as described in Sections 4 22 back through 4 2 4 56 130 Series Appendix A Handling the LCD Module Precautions for Handling the LCD Module The LCD module can be easily damaged during assembly or disassembly Obse
114. onnect 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 Secure the cable in place by pushing the sides of the pressure plate down so the plate is flush with the sides of the connector Gently pull on the cable to make sure the cable is secure If you pull out the connector connect it again making sure the pressure plate is fully lifted when you insert the cable Standard pin and flexible cable connectors are used with all other cables These connectors can be connected and disconnected by simply pulling them apart or pushing them together Assembly Procedures After you have disassembled the computer and fixed or repaired the problem that was caus ing the computer to operate abnormally you will need to reassemble the computer While assembling the computer remember the following general points 1 Take your time making sure you follow the instructions closely Most prob lems arise when you hurry to assemble the computer Make sure all cables and connectors are securely fastened Before securing the FRU or other parts make sure that no cables will be pinched by screws or the FRU Check that all latches are closed securely in place Make sure all the correct screws are used to secure all FRUs Using the wrong screw
115. onnector Multimeter External CRT 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 TD Y 03 Music CD Serial Port Wraparound Connector CD ROM Drive Lens cleaner for CD ROM laser pickup lens 2 1 2 2 Troubleshooting Flowchart Use the flowchart in Figure 2 1 as a guide for determining which troubleshooting procedures to execute Before going through the flowchart steps do the following 2 2 L Ask the user if a password is registered and if it is ask him or her to enter the pass word If the user has forgotten the system password perform the following procedure at the appropriate step in the flowchart in Figure 2 1 Connect the printer port wraparound board F31PRT then turn the POWER switch on 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 Q Make sure all optional equipment is disconnected from the computer 1 Make sure the floppy disk drive is empty 430 Series 430 Series START Connect the AC power cable to the AC IN socket Does the AC IN icon glow Perform the Power Supply Troubleshooting Procedures in section 2 3 Perform the Power Supply Troubleshooting Procedures in se
116. optional memory module FDD or CD ROM drive HDD and keyboard as described in Sections 4 2 through 4 8 3 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 Sub battery cable Sub battery Figure 4 22 Removing the sub battery 4 The battery is held in place by two sided tape Press down firmly on the battery holder and gently pry up to release the battery 430 Series 403 5 Remove two tapes and disconnect the microphone cable from PJ3 on the sound board Microphone cable Figure 4 23 Disconnecting the microphone cable 6 Disconnect the VGA board from system board connector PJ16 VGA board Figure 4 24 Disconnecting the VGA board 4 24 430 Series 7 Rotate the VGA board out and disconnect the VGA cables from PJ302 and PJ303 TFT model only on the VGA board VGA cables 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 1 Connect the VGA cable to PJ302 PJ303 TFT model only the VGA board Make sure the ferrite core is seated properly NOTE Make sure connectors PJ301 on the VGA board and PJ16 on the system board are not dirty I
117. ostic Program Refer to Chapter 3 Tests and Diag nostics for more information on how to perform the test program If an error occurs go to Procedure 2 If an error does not occur the keyboard is functioning properly Procedure 2 Connector and Replacement Check The keyboard is connected to the system board by a flat cable This cable may be discon nected or damaged Disassemble the 430 series as described in Chapter 4 Replacement Procedures and perform the following checks Check 1 sure the keyboard cable is not damaged and is connected to the system board Keyboard cable PJ14 System board If this cable is damaged replace the keyboard with a new one If the cable is disconnected firmly connect it Perform Procedure again If the keyboard is still not functioning properly perform Check 2 Check 2 The keyboard controller on the system board may be damaged Replace the system board with a new one Refer to Chapter 4 for more information 430 Series A 2 271 2 8 Display and VGA Board Troubleshooting This section describes how to determine if the 430 series display is functioning properly Start with Procedure 1 and continue with the other procedures as instructed Procedure 1 Contrast Control Check 430CDS only Procedure 2 External CRT Check Procedure 3 Diagnostic Test Program Execution Check Procedure 4 Connector Check Procedure 5 Replacement Check Procedure 1 Contrast Control Check 430CDS only
118. our display cables from PJ2 PJ3 PJ4 and PJ5 on the flexible cable 6 Remove the shielded tape securing the display cables to the LCD cover Display cables Shielded tape Flexible cable 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 1 Secure the display cable to the LCD cover with shielded tape 2 Connect the display cables to PJ2 PJ3 PJ4 and PJ5 on the flexible cable and connect the flexible cable to the LCD module 3 Carefully rotate the LCD module into the LCD cover Be sure the flexible cable fits securely into the clear plastic protector NOTE Support the back of the display with your hand when you secure the Screws 4 Secure four M2 5x6 screws with ground cable on the LCD module Make sure the ground cable is secured at the lower left corner 5 Install the FL inverter board display mask optional memory module optional PC card and battery pack as described in Sections 4 17 4 16 4 4 4 3 and 4 2 4 48 430 Series 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 1 430 Series 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
119. ove the battery pack optional PC card and optional memory module as described in Sections 4 2 4 3 and 4 4 3 Turn the computer upside down 4 Press the release lever lock to unlock the release lever 5 Pull up on the lever to release it Then raise it gently until the FDD pops out slightly Don t force the lever back too far Release lever lock Release lever Figure 4 10 Removing the FDD module 6 Grasp the drive and pull it out 412 M M 430 Series 7 Remove six M2x6 screws and take off the upper plastic cover M2x6 screws Upper plastic cover M2x6 screws Figure 4 11 Removing the screws 8 Release four latches lift off the plate and remove the lower plastic cover Lower plastic cover Figure 4 12 Removing the plate 430 Series M 413 9 Disconnect the flexible cable 10 Remove four M2x3 screws and remove the FDD from the bracket M2x3 screws Diskette drive M2x3 screws Metal brack Flexible cable etal 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 1 Seat the FDD in the metal bracket and secure four M2x3 screws 2 Connect the flexible cable 3 Set the plate in place and seat the FDD in the lower plastic cover 4 Set the upper plastic cover in place and secure six M2x6 screws Press firm
120. ow the steps below and refer to Figures 4 36 and 4 37 1 Turn off the power to the computer Disconnect the AC power cord and all external cables connected to the computer 2 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 card and speaker as described in Sections 4 2 through 4 12 3 Remove one M2 5x6 screw securing the battery terminal cover and lift off the cover 4 Remove the tape securing the AC PS unit cable and disconnect it from PJ502 Note how the cable is threaded 5 Remove the tape and one M2 5x10 screw securing the AC PS unit 6 Turn the AC PS unit out of its seating and lay it on its side Notch Holder assembly Tape M2 5x10 screw AC PS unit Battery terminal cover Figure 4 36 Removing the AC PS unit 430 Series 6 85 7 Remove two M2 5x6 screws securing the holder assembly and plastic cover then lift out the assembly 8 Lift the power cord socket straight up until it clears its slots and remove the AC PS unit M2 5x6 screws Plastic cover Holder assembly Power cord socket 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 1 Seat the power cord socket with the side with markings facing up Press gently to secure its positio
121. peaker cable on top of the sound board Align the flexible cable connector with PJ7 on the system board and press evenly to make the connection Replace the HDD metal cover Connect three cables sound board power cable to PJ9 CD ROM sound cable to PJ11 and speaker cable to PJ6 Secure the cables with tape Seat the sound board cover HDD metal cover and Selectable Bay ground plate Secure the sound board sound board cover HDD metal cover and Selectable Bay ground plate with five M2 5x6 screws one w washer and one M2 5x4 screw NOTE Be sure to secure the M2 5x4 screw to the correct hole Install the top cover with display assembly RTC battery sub battery VGA board keyboard HDD FDD or CD ROM drive optional memory module optional PC card and battery pack as described in Sections 4 10 back through 4 2 430 Series 4 12 Speaker Removing the Speaker To remove the speaker follow the steps below and refer to Figures 4 34 and 4 35 1 430 Series 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 Remove the tape securing the CD ROM sound cable and disconnect it from PJ19 on the system board Note the location of the
122. pixels Enabled Enables the text mode stretch feature Default Disabled Disables the text mode stretch feature Hard Disk Use this item to select the hard disk mode Enhanced IDE Select this mode when using MS DOS Normal Windows OS 2 Default Standard IDE Select this mode when using Novell NetWare or UNIX When this mode is selected up to 504MB is logically available even though the disk s capacity is larger than 504MB 3 57 3 58 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 Registered user password has been registered Not registered user password has not been registered For details on setting the user password refer to the 430 User s Manual T O Ports This option controls settings for serial and parallel ports and the sound system a Serial Port This option allows you to set COM level COMI to for the serial port The serial port interrupt request level IRQ and I O port base address for each COM level is shown below COMlevel Interruptlevel l Oaddress 1 4 3F8h Serial port default COM2 3 2F8h COM3 4 3E8h 5 3E8h 7 3E8h COM4 3 2E8h 5 2E8h 7 2E8h Not used Disables port NOTE Do not assign the same interrupt request l
123. r to the computer Disconnect the AC power cable and all external cables connected to the computer 2 Remove the battery pack optional PC card optional memory module and display mask as described in Sections 4 2 4 3 4 4 and 4 16 NOTE Be sure to support the back of the display with your hand 3 Remove two M2 5x6 screws securing the FL inverter board The screw on the left also secures the ground cable 4 Remove the tape and disconnect the FL inverter cable from CN1 and the FL cable from CN2 on the FL inverter board Lift the board out M2 5x6 screw board FL inverter Ground wire Figure 4 43 Removing the FL inverter board TFT 430 Series _ 443 Installing the FL Inverter Board To install the FL inverter board follow the steps below and refer to Figure 4 43 1 Connect the FL inverter cable to CN1 and the FL cable to CN2 on the FL inverter board 2 Replace the tape 3 Seat the FL inverter board NOTE Be sure to support the back of the display with your hand 4 Secure the FL inverter board with two M2 5x6 screws Be sure that the left screw secures the ground cable 5 Install the display mask optional memory card optional PC card and battery pack as described in Sections 4 16 4 4 4 3 and 4 2 4 44 430 Series 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
124. r xxx DIAGNOSTICS version X XX c copyright TOSHIBA Corp 19XX DIAGNOSTIC TEST MENU 1 SYSTEM TES 2 MEMORY TES 3 KEYBOARD TES 4 DISPLAY TES 5 FLOPPY DISK TEST 6 PRINTER TES 7 ASYNC TEST 8 HARD DISK TES 9 REAL TIMER TEST 10 NDP TEST 11 EXPANSION TES 12 SOUND TEST 13 CD ROM TES 88 ERROR RETRY COUNT SET HDD 6 FDD 99 EXIT TO DIAGNOSTICS MENU N gt 2 Select items Enter Specify Esc Exit Refer to sections 3 4 through 3 16 for detailed descriptions of Diagnostic Tests 1 through 13 Function 88 sets the floppy disk drive and hard disk drive error retry count Function 99 exits the submenus of the Diagnostic Test and returns to the Diagnostic Menu 3 Select the option you want to execute and press Enter The following message will appear SYSTEM TEST XXXXXXX DIAGNOSTIC TEST VX XX Ctrl Break test end Ctrl C key stop SUB TEST XX PASS COUNT XXXXX ERROR COUNT XXXXX WRITE DATA XX READ DATA XX ADDRESS XXXXXX STATUS SUB TEST MENU 01 ROM checksum 02 4 03 04 Fan ON OFF 05 Thermistor check 99 Exit to DIAGNOSTIC TEST MENU Tie E Select items Enter Specify Esc Exit NOTE The menu displayed by your computer may be slightly different from the
125. rom the drive 10 Hold unit with the drive door facing away and push forward with thumbs to slide the drive out of the case 416 H _ 430 Series Installing the CD ROM Drive To install the CD ROM drive follow the steps below and refer to Figures 4 15 and 4 14 I 2 430 Series 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 Slowly insert the CD ROM drive module into the computer Be careful to insert it straight and press firmly so the drive is flush with the computer The release lever will close partially Hold the CD ROM drive module flush to the computer and push the lever down until it snaps into place Lock the drive release lever lock Install the optional memory module optional PC card and battery pack as described in Sections 4 2 4 3 and 4 4 4 17 4 7 Disk Drive HDD Removing the HDD To remove the HDD drive follow the steps below and refer to Figures 4 16 and 4 17 1 4 18 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 Remove two M2 5x6 screws securing the HDD frame brace to the computer Pull the frame
126. rve the following precautions when handling the LCD module 1 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 OK 2 careful to align the holes at the four corners of LCD module with the corresponding holes in the LCD cover before securing the module with screws Do not force the module into place because stress can affect its performance Also the panel s polarized surface is easily scarred so be careful when handling it 430 Series A 3 Ifthe 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 Do not apply cleanser directly to the panel eS 4 If water or other liquid is left on the panel s surface for a long period it can change the screen s tint or stain it Be sure to quickly wipe off any liquid 5 Glass is used in the panel so be careful not to drop it or let it strike a hard object which could cause breakage or cracks 2 _ 430 Series 6 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 7 Do not expose the module to
127. t how to disassemble the computer To FL inverter board VGA board Contrast control board Figure 2 3 430CDS display connection To FL inverter board VGA board 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 5 430 Series 2 23 Procedure5 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 Check 1 Check 2 Check 3 Check 4 Check 5 Check 6 2 24 If the FL does not light perform Check 1 If characters are not displayed clearly perform Check 3 If some screen functions do not operate properly perform Check 3 If the FL remains lit when the display is closed perform Check 4 Replace the FL with a new one and test the display again If the problem still exists perform Check 2 Replace the FL inverter board with a new one and test the display again If the problem still exists perform Check 3 Replace the LCD module with a new one and test the display again If the problem still exists perform Check 4 Replace the display swit
128. tant data is FFFFh AAAAh 5555h and 0000h RAM address pattern data This subtest writes address pattern data created by the exclusive ORing XORing to the address segment and address offset in conventional memory program end to 640 KB then reads the new data and compares the result with the original data RAM refresh This subtest writes a 256 byte unit of constant data to conventional memory 0 to 640 KB then reads the new data and compares the result with the original data The constant data is AAAAh and 5555h NOTE There is a short delay between write and read operations de pending on the size of the data Protected mode NOTE The CONFIG SYS file must be configured without expanded memory manager programs such as 386 EMM38 amp 6 SYS or QEMMS3686 SYS Also the HIMEM SYS must be deleted from the CONFIG SYS file This subtest writes constant data and address data to extended memory maxi mum address 100000h then reads new data and compares the result with the original data The constant data is FFh AAh 55h and 00 3 9 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
129. tape Remove one M2 5x6 screw securing the power supply cover and remove the cover Remove one M2 5x6 screw securing the speaker assembly and lift out the speaker Power supply cover CD ROM sound M2 5x6 screw 1 A e RE gt asero WEE LO Figure 4 34 Removing the speaker assembly 4 33 6 Remove one M2 5x4 screw securing the speaker and its brace Speaker Speaker brace gt a M2 5x4 screw 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 1 Seat the speaker in the speaker brace and secure it with one M2 5x4 screw 2 Seat the speaker assembly and secure it to the computer with one M2 5x6 screw 3 Seat the power supply cover Make sure it fits under the speaker assembly and that one pin fits through the corresponding hole in the cover 4 Secure the power supply cover with one M2 5x6 screw 5 Connect the CD ROM sound cable to PJ19 on the system board Secure it with tape at its original position 6 Install the sound board top cover with display assembly RTC battery VGA board sub battery keyboard HDD FDD or CD ROM drive optional memory module optional PC card and battery pack as described in Sections 4 11 back through 4 2 4 34 MM 430 Series 4 13 AC PS Unit Removing the AC PS Unit To remove the AC PS unit foll
130. test select 13 from the DIAGNOSTICS TEST MENU press Enter and follow the directions on the screen The CD ROM test contains four subtests that test the computer s CD ROM functions NOTE First make sure the CD ROM driver CDROMDRV COM is installed and insert the test media CD Toshiba EMI Test Disk TDY 03 Subtest 01 Sequential Read This subtest is a sequential reading of one block unit 2K bytes of all the logical addresses Subtest 02 Read Specified Address This subtest reads one block data from a specified address Subtest 03 Random Address Data This subtest reads one block data and multi block data from random addresses 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 430 Series 3 3 17 Error Code and Error Status Names Table 3 2 lists the error codes and error status names for the Diagnostic Test 3 34 Table 3 2 Error codes and error status names Device name Common Error code Error status name Data Compare Error System ROM Checksum Error Memory Parity Error Protected Mode Not Changed Memory Read Write Error Cache Memory Error Keyboard Mouse Interface Error IPS Interface Error Interface Error Retransmit Error Mouse Handler Not Supported PS 2 Mouse amp IPS Not Supported Bad
131. test number 03 if selected 8 Async test subtest number 01 if selected The system automatically detects the number of floppy disk drives connected to the computer for the FDD test 3 22 2 Operations 430 Series NOTE Do not forget to load a work disk in the FDD If a work disk is not loaded an error will be generated during the FDD testing Remove the diagnostics disk from the floppy disk drive and insert the work disk Selecting 6 from the Diagnostic Menu and pressing Enter displays the following message Printer wrap around test Y N Selecting Y yes executes the printer wraparound test A printer wraparound connector must be connected to the parallel port of the computer to properly execute this test Select Y or N and press Enter The following message will appear Serial wrap around test Y N Selecting Y yes executes the ASYNC wraparound test An RS 232 C wrap around connector must be connected to the serial port of the computer to properly execute this test 3 47 4 Select Yes or No and press Enter The following message will appear Mount the work disk s on the drive s then press Enter key Warning The contents of the disk s will be destroyed 5 This program is executed continuously To terminate the program press Ctrl Break 3 48 430 Series 3 23 Floppy Disk Drive Utilities 3 23 1 Function Description This function forma
132. that test the FDD The following messages will appear after selecting the Floppy Disk Test from the DIAGNOSTIC TEST MENU Answer each question with an appropriate response to execute the test 1 3 18 Select the test drive number of the floppy disk drive to be tested and press Enter Test drive number select 1 FDD 1 2 FDD 2 0 FDD1 amp 2 Select the media type of the floppy disk in the test drive to be tested and press Enter Media in drive X mode 0 2DD 1 2D 2 2D 2HD 2DD 3 2HD Select the track you want the test to start on and press Enter Simply pressing Enter sets the start track to zero Test start track Enter 0 dd 00 79 The floppy disk test menu will appear after you select the start track number Select the number of the subtest you want to execute and press Enter The following message will appear during the floppy disk test FLOPPY DISK XXXXXXX DIAGNOSTIC TEST VX XX Ctrl Break test end Ctrl C key stop 430 Series Subtest 01 Subtest 02 Subtest 03 Subtest 04 Subtest 05 430 Series 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
133. ts the FDD copies the floppy disk and displays the dump list for both the FDD and HDD 1 FORMAT This program can format a 5 25 inch or 3 5 inch floppy disk as follows a 2D Double sided double density 48 67 5 TPI MFM mode 512 bytes 9 sectors track b 2DD Double sided double density double track 96 135 TPI MFM mode 512 bytes 9 sectors track c 2HD Double sided high density double track 96 135 TPI MFM mode 512 bytes 18 sectors track 2 COPY This program copies data from a source floppy disk to a target floppy disk 3 DUMP This program displays the contents of the floppy disk and the designated sectors of the hard disk on the display 3 23 2 Operations 1 Selecting 7 from the DIAGNOSTIC MENU and pressing Enter displays the following message FDD UTILITIES FORMAT DUMP EXIT TO DIAGNOSTICS MENU OWNE 2 FORMAT program a Selecting FORMAT displays the following message Jg IAGNOSTICS FLOPPY DISK FORMAT VX XX Drive number select 1 A 2 B 430 Series 09 b c d 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 w
134. ttery VGA board RTC battery top cover with display assembly sound board speaker AC PS unit and infrared board as described in Sections 4 2 through 4 14 3 Remove six M2 5x6 one M2x8 and two M2 5x4 screws securing the system board Selectable Bay connector cover VGA support ground plate and back guide assembly support 4 Lift off the Selectable Bay connector cover VGA support back guide assembly support and ground plate then lift up the front side of the system board and remove the board M2 5x6 screws M2 5x6 screws Selectable Bay connector cover M2 5x6 screw Back guide assembly nfrared board cable System board Ground plate Figure 4 39 Removing the system board 5 Remove the reset switch spring from the system board NOTE The shutter assembly for the optional PC card may fall off as you remove the system board be sure to note its location 430 Series 6 89 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 Reset switch spring Shutter assem 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 4 40 1 Seat the fan in the system board and secure it with two 2 5 screws Be sure the screw on the left secures the ground plate Connect the fan cable to PJ11 Seat the reset
135. ttery charging data preservation time Charging Time PowerOn Power Off Data preservation period full charge 118 830 Series 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 Charging Time With AC power 48H or main battery Data preservation period full charge 1 month 430 Series 2 11 Troubleshooting Chapter 2 describes how to determine if a Field Replaceable Unit FRU in the 430 series is causing the computer to malfunction The FRUs covered are 96 1 Oe deo po ber Power Supply Battery Pack AC PS Unit System Board Sound Board Board Floppy Disk Drive Hard Disk Drive CD ROM Drive Keyboard Display The Diagnostics Disk operations are described in Chapter 3 and detailed replacement proce dures are given in Chapter 4 The following tools are necessary for implementing the troubleshooting procedures 430 Series Diagnostics Disk Phillips screwdriver 2 mm Toshiba MS DOS system disk s You mustinstall the following onto disk SYS COM FORMAT COM FDISK COM and FDISK EXE 2DD or2HD formatted work disk for floppy disk drive testing Cleaning kitforfloppy disk drivetroubleshooting RS 232 C wraparound connector Printer wraparound c
136. urn off the power Plug the printer port LED into the parallel port Hold down the space bar and turn on the power Read the LED status from left to right as you are facing the back of the computer Convert the status from binary to hexadecimal notation If the final LED status is FFh normal status go to Procedure 3 If the final LED status matches any of the test status values in Table 2 1 perform Check 1 NOTE If an error condition is detected by the IRT test the printer port LED displays an error code after the IRT test ends For example when the printer port LED displays halts the IRT test has already completed the Display initialization In this instance the IRT indicates an error has been detected during the system memory test 430 Series LED status Table 2 1 Printer port LED boot mode status Testitem KBC initialization Message 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 KB initialization KBC ERROR Initialization of memory configuration SM RAM check Self test check Read of Power Supply information ROM RAM copy Initialization of internal VGA First 64 KB memory test FIRST 64KB MEMORY ERROR FIRST 64KB MEMORY PARITY ERROR

Maintenance Manual - minus zero degrees

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