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100CS

2-13

2.5 Floppy Disk Drive Troubleshooting

This section describes how to determine if the 3.5-inch floppy disk drive is functioning prop-
erly. 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. If the FDD still does not function properly after cleaning, go to Proce-
dure 2.

If the test program cannot be executed on the computer, go to Procedure 3.

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Summary of Contents for Satellite 100CS

Page 1: ...HDD Floppy Disk Drive FDD A 3 5 inch FDD supports 2HD 1 44 MB floppy disks and 2DD 720 KB floppy disks Display A 10 4 inch Dual scan Supertwist Nematic DSTN color LCD with 640 x 480 pixels The built in display controller supports 640 x 480 resolution with 64k colors capability on the internal LCD and up to 1024 x 768 resolution with 256 colors on an external CRT Keyboard An easy to use 82 84 key k...

Page 2: ...t A PC card slot supports up to two Personal Computer Memory Card International Association PCMCIA standard version release 2 0 cards The upper and lower slots can each accommodate one Type II 5 0 mm card or the lower slot can accommo date one Type III 10 5 mm card when the upper slot is empty Enhanced port replicator port This port enables connection of an enhanced port replicator The enhanced po...

Page 3: ...100CS 1 3 The 100CS Personal Computer is shown in figure 1 1 Figure 1 1 100CS personal computer The system configuration is shown in figure 1 2 Figure 1 2 System unit configuration ...

Page 4: ...1 4 100CS 1 2 System Unit Block Diagram Figure 1 3 is a block diagram of the system unit Figure 1 3 System board block diagram ...

Page 5: ...150 ns Data transfer is 8 bit width Video RAM 1 MB Two 256Kx16 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 40 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 supporte...

Page 6: ... access control DMAC control DMA address generation I O control Suspend Resume sequence Memory control ISA bus interface control Refresh address generation I O register control Suspend Resume sequence PC Card Controller Gate Array PCMCIA CNT GA This gate array has the following functions PCMCIA memory card control PCMCIA I O card control I O Controller Gate Array IOCNT GA This gate array has the f...

Page 7: ...2M4 chip is used This KBC includes the keyboard scan controller and keyboard interface controller The KBC controls the internal keyboard external keyboard 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 ...

Page 8: ... table 1 1 Table 1 1 3 5 inch FDD specifications Item 2 MB mode 1 MB mode Storage capacity KB Unformatted 2 000 1 1 000 2 Formatted 1 311 655 Number of heads 2 2 Number of cylinders 80 80 Access time ms Track to track 3 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 Recording method Modified Frequency Modula...

Page 9: ...er supports the 520 MB The HDD is shown in figure 1 5 Figure 1 5 2 5inch HDD Specifications for the HDD are listed in table 1 2 Table 1 2 2 5 inch HDD specifications Items Toshiba MK1924FCV IBM DBOA 2528 Storage capacity million byte Formatted 528 528 Number of disks 2 2 Data heads 4 3 Data surfaces 4 4 Bytes per sector 512 512 Rotation speed rpm 4200 4000 Recording method 8 9 RLL 1 7 RLL ...

Page 10: ...e keyboard controller on the system board through a 25 pin flat cable The computer pointer control stick located in the center of the keyboard provides convenient control of the cursor without requiring desk space for a mouse The keyboard is shown in figure 1 6 See Appendix E for optional keyboard configurations Figure 1 6 Keyboard ...

Page 11: ...ternal LCD and up to 1024 x 768 resolution with 256 colors on an external CRT The LCD receives vertical and horizontal synchronizing signals 16 bit data signal 8 bit upper block data signal 8 bit lower block data signal and has a shift clock for data transmission All signals are CMOS level compatible The DSTN LCD is shown in figure 1 7 The specifications for the LCD are listed in table 1 3 Figure ...

Page 12: ...igh frequency current to light the LCD s Fluorescent Lamp The specifications for the FL inverter are listed in table 1 4 Table 1 4 DSTN color FL inverter board specifications Item Specifications Input Voltage V 4 to 5 5 Power W 4 25 Output Voltage Vrms 1 100 Current mA 5 0 3 0 Bright Semi bright ...

Page 13: ...ols 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 7 Calculates the remaining battery capacity The power supply output rating is specified in table 1 5 Table 1 5 Power supply output rating DC Regulation Use for Name voltage tolerance Sy...

Page 14: ...hen 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 computer The icon shows the status of the removable battery pack The status of each can be determined by color Orange The AC power cord is connected and ch...

Page 15: ...ck charge when the system is powered off and trickle charge when the system is powered on Table 1 7 Time required for quick charges Power Charging time Power off About 2 5 hours Power on Trickle charge If one of the following occurs the battery quick charge process stops 1 The battery becomes fully charged 2 The battery is removed 3 The battery or AC output voltage is abnormal 4 The charge current...

Page 16: ...ackup battery charging data preservation time Item Time Charging Time Power On 20 H Power Off with AC power 20 H Power Off without AC power Doesn t charge Data preservation period full charge 5 H 1 8 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 9 shows the charging time and data preservatio...

Page 17: ... in Chapter 4 The following tools are necessary for implementing the troubleshooting procedures 1 Diagnostics disk 2 Phillips screwdriver 3 Toshiba MS DOS system disk s You must install the following onto the disk SYS COM FORMAT COM FDISK COM and FDISK EXE 4 2DD or 2HD formatted work disk for floppy disk drive testing 5 Cleaning kit for floppy disk drive troubleshooting 6 RS 232 C wraparound conne...

Page 18: ...edures to execute Before going through the flowchart steps do the following Verify with the customer that Toshiba MS DOS is installed on the hard disk Non Toshiba operating systems can cause the computer to malfunction Make sure all optional equipment is disconnected from the computer Make sure the floppy disk drive is empty ...

Page 19: ...100CS 2 3 Figure 2 1 Troubleshooting flowchart 1 2 ...

Page 20: ...stem test memory test display test ASYNC test printer test or real timer test perform the system board troubleshooting proce dures in section 2 4 2 If an error is detected on the floppy disk test perform the floppy disk drive troubleshooting procedures in section 2 5 3 If an error is detected on the hard disk test perform the hard disk drive troubleshooting procedures in section 2 6 4 If an error ...

Page 21: ...ower When the AC IN icon is green the AC power cord is connected and supplying power to the computer If the AC IN icon does not light the AC power cord is not supplying power to the computer or the AC power cord is not attached to the computer Go to Check 1 If the AC IN icon is flashing orange the AC power cord s voltage supply is abnormal or the power supply is not functioning properly Go to Chec...

Page 22: ...ean 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 Proced...

Page 23: ...sage go to Procedure 2 If the Toshiba MS DOS is properly loaded go to Procedure 3 Check 1 If one of the following error messages is displayed on the screen press the F1 key as the message instructs These errors occur when the system configuration preserved in the RTC memory CMOS type memory is not the same as the actual configuration or when the data is lost If you press the F1 key as the message ...

Page 24: ... 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 If error message 24 or 25 is displayed go to the FDD Troubleshooting Proce dures in section 2 5 1 BIOS is damaged 2 PIT ERROR 3 MEMORY REFRESH ERROR 4 TIMER CH 2 OUT ERROR 5 FIRST 64KB MEMORY ERROR 6 CMOS CHECKSUM ERROR 7 CMOS...

Page 25: ...n and turn the computer on 5 Read the LED status from left to right as you are facing the back of the computer 6 Convert the status from binary to hexadecimal notation 7 If the final LED status is FFh normal status go to Procedure 3 8 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 LE...

Page 26: ...T 64KB MEMORY ERROR FIRST 64KB MEMORY PARITY ERROR 0BH System memory initialization 0CH System initialization 0DH Interrupt vector initialization 18H PIC initialization 1FH Display initialization VRAM ERROR 25H System memory test SYSTEM MEMORY ERROR SYSTEM MEMORY PARITY ERROR 30H Extended memory test EXTENDED MEMORY ERROR EXTENDED MEMORY PARITY ERROR 40H DMA page register test DMA PAGE REGISTER ER...

Page 27: ...ction 2 6 Check 4 If error code 60h is displayed 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 the computer on then set to resume mode 2 Turn the com...

Page 28: ...ow to perform these tests 1 System test 2 Memory test 3 Printer test 4 ASYNC test 5 Real Timer test 6 PCMCIA test If an error is detected during these tests go to Procedure 5 Procedure 5 Replacement Check The system board or the HDD I F board may be damaged Disassemble the computer follow ing the steps described in chapter 4 Replacement Procedures and perform the following checks Check 1 Replace t...

Page 29: ...stic 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 If the FDD still does not function properly...

Page 30: ...ed If any other errors occur while executing the FDD diagnostics test go to Check 1 Table 2 3 Floppy disk drive error code and status Code Status 01h Bad command 02h Address mark not found 03h Write protected 04h Record not found 06h Media removed on dual attach card 08h DMA overrun error 09h DMA boundary error 10h CRC error 20h FDC error 40h Seek error 60h FDD not drive 80h Time out error Not rea...

Page 31: ...ble is disconnected connect it to the system unit and repeat Procedure 2 If the FDD is still not functioning properly perform Check 2 Check 2 The cable may be defective or damaged Replace the flexible cable If the FDD is still not functioning properly perform Check 3 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...

Page 32: ... and turn on the computer Then perform the follow ing checks Check 1 Type C and press Enter If you cannot change to drive C go to Check 2 If you can change to drive C go to Procedure 2 Check 2 Type 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 ...

Page 33: ...t 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 computer If the error message still appears...

Page 34: ...essage appears on the display the HDD is formatted Format complete If any other error message appears on the display refer to the Toshiba MS DOS Manual for more information and perform Check 2 Check 2 Using the Diagnostic Disk format the HDD with a low level format option Refer to Chapter 3 Tests and Diagnostics for more information about the diagnostic program If the following message appears on ...

Page 35: ... Hard disk drive error code and status Code Status 01h Bad command 02h Bad address mark 04h Record not found 05h HDC not reset 07h Drive not initialized 08 HDC overrun DRQ 09h DMA boundary error 0Ah Bad sector error 0Bh Bad track error 10h ECC error 11h ECC recover enabled 20h HDC error 40h Seek error 80h Time out error AAh Drive not ready BBh Undefined error CCh Write fault E0h Status error EEh A...

Page 36: ...t 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 computer as described in chapter 4 Replacement Procedures and perform the following checks Check 1 Make sure the keyboard cable is not damaged and is connected to the system board Keyboard c...

Page 37: ...nect the external CRT to the computer s 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 Proce dure 4 If the external CRT appears to have the same problem as the internal LCD the display con troller may be damaged Go to Procedure 3 Procedu...

Page 38: ...d by two signal cables 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 about how to disassemble the computer Figure 2 3 Display connection If any of these cables is not connected firmly reconnect it and repeat Procedures 1 and 2 If the problem still exists pe...

Page 39: ...play is closed perform Check 4 Check 1 Replace the FL with a new one and test the display again If the problem still exists perform Check 2 Check 2 Replace the FL inverter board with a new one and test the display again If the problem still exists perform Check 3 Check 3 Replace the LCD module with a new one and test the display again If the problem still exists perform Check 4 Check 4 Replace the...

Page 40: ...es for loose connections 2 Exit any application you may be using and close Windows 3 Be sure the computer is not in virtual 86 mode The test will not run in that mode If you try to run the test in virtual 86 mode the following message will be displayed Cannot execute in a virtual 8086 mode If the preceding message is displayed remove memory managers from your config sys file See your MS DOS docume...

Page 41: ...it to clean the floppy disk drive heads Head Cleaning A PCMCIA wraparound connector for the I O card test PCMCIA test A printer wraparound connector for the printer wraparound test Printer test An RS 232 C wraparound connector for the RS 232 C port wraparound test ASYNC test External CRT All tests PS 2 or compatible keyboard All tests PS 2 or compatible mouse Keyboard test Serial port wraparound c...

Page 42: ...ll appear TOSHIBA personal computer xxx DIAGNOSTICS version X XX c copyright TOSHIBA Corp 19XX DIAGNOSTICS MENU 1 DIAGNOSTIC TEST 2 HARD DISK FORMAT 3 4 HEAD CLEANING 5 LOG UTILITIES 6 RUNNING TEST 7 FDD UTILITIES 8 SYSTEM CONFIGURATION 9 EXIT TO MS DOS 0 SETUP 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 Br...

Page 43: ... to sections 3 4 through 3 14 for detailed descriptions of Diagnostic Tests 1 through 11 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 xxx DIAGNOSTIC TEST VX XX Ctrl Brea...

Page 44: ...S 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 1 Test end 2 Continue 3 Retry 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 Selecting NO keeps t...

Page 45: ...1 Pressed key display 02 Pressed keycode display 03 PS 2 Mouse connect check 04 Pointing stick 4 DISPLAY 01 VRAM read write 02 Character attributes 03 Character set 04 80x25 30 Character display 05 320x200 Graphics display 06 640x200 Graphics display 07 640x350 480 Graphics display 08 Display page 09 H pattern display Border color 10 LED DAC pallet 11 Color display 5 FDD 01 Sequential read 02 Sequ...

Page 46: ... test 8 HDD 01 Sequential read 02 Address uniqueness 03 Random address data 04 Cross talk peak shift 05 Write read compare CE 06 Write specified address 07 Read specified address 08 ECC circuit 09 Sequential write 10 W R C specified address 9 REAL TIMER 01 Real time 02 Backup memory 03 Real time carry 10 NDP 01 NDP test 11 EXPANSION 01 PCMCIA wraparound Internal 02 PCMCIA wraparound External ...

Page 47: ...ight bar to the subtest you want to execute and press Enter Subtest 01 ROM checksum The ROM checksum tests the system board from address F0000h to FFFFFh 64KB Subtest 02 Not used Subtest 03 Not used Subtest 04 Not used Subtest 05 Thermistor check This subtest checks the thermistor that controls CPU temperature The ther mistor cable connects to PJ1 on the system board ...

Page 48: ...nal memory program end to 640 KB then reads the new data and compares the result with the original data Subtest 03 Refresh real mode 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 pendin...

Page 49: ...cting subtest 05 the following message will appear Extended memory size 1 8 MB 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 5A data is run repeatedly to the test area 7000 Program size to 7000 7FFF 32 KB to check the hit miss ratio on off status One test take...

Page 50: ...test you want to execute and press Enter Subtest 01 Pressed key display 82 84 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...

Page 51: ...ndix 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 enhanced port replicator This subtest checks whether or not a PS 2 mouse is connected If this test does not detect an err...

Page 52: ... IPS and IPS switch When the stick is pressed towards the upper left the POINTING 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 PRESS BUTTON1 BUTTON2 THEN END When a but...

Page 53: ...t displays the following character attribute modes normal intensi fied reverse and blinking as shown in the display below The character attribute modes display the foreground color and intensified color 16 colors or 16 level gray scale using black blue red magenta green cyan yellow and white from the color display The display below appears on the screen when this subtest is executed CHARACTER ATTR...

Page 54: ...this subtest and return to the DISPLAY TEST menu press Ctrl Break Subtest 03 Character Set In this subtest the character set addressed 00h to FFh is displayed in the 40 25 character mode as shown below Press Enter KEY To exit this subtest and return to the DISPLAY TEST menu press Ctrl Break BLACK BLUE GREEN CYAN RED MAGENTA BROWN WHITE GRAY LIGHT BLUE LIGHT GREEN LIGHT CYAN LIGHT RED LIGHT MAGENTA...

Page 55: ...sts To exit this subtest and return to the DISPLAY TEST menu press Ctrl Break Subtest 05 320x200 Graphics Display mode 4 D This subtest displays two color sets for the color display in 320x200 dot graphics mode 4 and D One example is shown below 320 200 GRAPHICS DISPLAY COLOR SET X X PRESS Enter KEY Pressing Enter toggles between tests To exit this subtest and return to the DISPLAY TEST menu press...

Page 56: ...r KEY To exit this subtest and return to the DISPLAY TEST menu press Ctrl Break Subtest 07 640x350 480 Graphics Display mode 10 12 This subtest displays even dots odd dots and all dots in the 640x350 and 640x480 dot graphics mode 10 12 as shown below 640 XXX GRAPHICS DISPLAY EVEN DOTS ODD DOTS ALL DOTS DRIVEN DRIVEN DRIVEN Pressing Enter changes the size of the displayed image To exit this subtest...

Page 57: ...HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHH...

Page 58: ...nd compares the result with the original data DAC pallet W R CMP test about 1 second Processor latch test Processor latch test 1 256 times 2 endless To exit press Ctrl Break Then press Enter Subtest 11 Color display This subtest sets the video mode to 13 and displays color code 0 to 63 at the same time then displays seven screens The first screen shows many colors at once the next three display 64...

Page 59: ...s Enter Media in drive X mode 0 2DD 1 2D 2 2D 2HD 2DD 3 2HD 3 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 4 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 ...

Page 60: ...riginal data Subtest 03 Random Address Data This subtest writes random data to random addresses on all tracks defined in subtest 01 The data is then read and compared to the original data Subtest 04 Write Specified Address This subtest writes specified data to a specified track head and address Subtest 05 Read Specified Address This subtest reads data from a specified track head and address ...

Page 61: ...response to execute the test 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 channel 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 ...

Page 62: ...or must be connected to the computer s 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 PRINTER TEST 1 THIS LINE SHOWS NORMAL PRINT 2 THIS LINE SHOWS DOUBLE WIDTH PRINT 3 THIS LINE SHOWS COMPRESSED PRINT 4 THIS LINE...

Page 63: ... 20h to 7Eh The following message will appear at the bottom of the screen when subtests 01 03 04 and 05 are selected Channel 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 ...

Page 64: ... 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 subtest receives the data from the send side then sends the received data Subtest 05 Interrupt Test This subtest checks the Interrupt Re...

Page 65: ...shiba MS DOS FORMAT command Refer to the Toshiba MS DOS manual for details 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 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 This message is used to select the retry o...

Page 66: ...t 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 the...

Page 67: ...E cylinder and compares it with the original data Subtest 06 Write specified address This subtest writes specified data to a specified cylinder and head on the HDD Subtest 07 Read specified address This subtest reads data which has been written to a specified cylinder and head on the HDD Subtest 08 ECC circuit This subtest checks the Error Check and Correction ECC circuit functions of the specifie...

Page 68: ...rrent time XX XX XX Enter new date PRESS ENTER KEY TO EXIT TEST 2 If the 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 If the 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 Th...

Page 69: ...ased This subtest checks the real time clock increments making sure the date and time are displayed in the following format Current date 12 31 1994 Current time 23 59 58 Pressing Enter displays the following Current date 01 01 1995 Current time 00 00 00 PRESS Enter KEY TO EXIT TEST Press Ctrl Break to exit ...

Page 70: ...CS 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 NDP Control word Status word Bus Addition Multiplication Press Ctrl Break to exit ...

Page 71: ...d in the following order Sub Address Good Bad Contents 01 00001 nn xx Address line 00001 nn xx REG CE 1 CE 2 nn A0 90 80 00 02 00002 ww rr Data line ww write data rr read data 03 00003 Speaker line 04 00004 40 80 xx Wait line 40 xx 80 05 00005 nn xx Other lines BSY BVD1 nn 21 00 Subtest 02 PCMCIA wraparound External This test checks the signal lines of the enhanced port replicator s PCMCIA slots P...

Page 72: ...01 Mouse Interface Error 02 IPS Interface Error 03 Interface Error 04 Retransmit Error 05 Mouse Handler Not Supported 06 PS 2 Mouse IPS Not connected FDD 01 Bad Command 02 Address Mark Not Found 03 Write Protected 04 Record Not Found 06 Media Removed 08 DMA Overrun Error 09 DMA Boundary Error 10 CRC Error 20 FDC Error 40 Seek Error 60 FDD Not Drive Error 80 Time Out Error EE Write Buffer Error Pri...

Page 73: ...n DRQ 09 DMA Boundary Error 0A Bad Sector 0B Bad Track Error 10 ECC Error 11 ECC Recover Enabled 20 HDC Error 40 Seek Error 80 Time Out Error AA Drive Not Ready BB Undefined Error CC Write Fault E0 Status Error EE Access Time Out Error NDP 01 No Co Processor 02 Control Word Error 03 Status Word Error 04 Bus Error 05 Addition Error 06 Multiply Error PCMCIA C1 Address Line Error C2 REG Line Error C3...

Page 74: ...us register and error register are listed in tables 3 3 and 3 4 Table 3 3 Hard disk controller status register contents Bit Name Description 7 BSY 0 HDC is busy Busy 1 HDC is ready 6 DRDY 0 Hard disk drive is not ready to accept any command Drive ready 1 Hard disk drive is ready to accept any command 5 DWF 0 DWF error is not detected Drive write fault 1 Write fault condition occurs 4 DSC 0 The har...

Page 75: ...able 1 Uncorrectable data error has been detected 5 Not used 4 IDNF 0 Other Identification 1 There was no ID field in the requested sector 3 Not used 2 ABRT 0 Other Abort 1 Illegal command error or a drive status error occurs 1 TK00 0 The hard disk has found track 0 during a recalibrate command Track 0 1 The hard disk could not find track 0 during a recalibrate command 0 Not used ...

Page 76: ...nts of the hard disk onto a floppy disk s This can be done with the BACKUP in the Toshiba Companion Utility See the Toshiba MS DOS manual for details 3 17 1 Function Description 1 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 opt...

Page 77: ...er than a bad track is detected the program is automatically termi nated 3 17 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 TEST 2 and pressing Enter on the DIAGNOSTIC MENU displays the follow...

Page 78: ...r 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 e 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 abov...

Page 79: ...T 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 Bad track CHECK This subtest reads the entire disk and displays a list of bad tracks The test is terminated in...

Page 80: ...ing 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 2 Remove the Diagnostics Disk from the FDD then insert the cleaning disk and press Enter 3 When the cleaning start message appears the FDD head cleaning has begun 4 The display automatically returns to the DIAGN...

Page 81: ...s STS 6 FDD HDD or memory address ADDR 7 Write data WD 8 Read data RD 9 HDC status HSTS 10 Error status name ERROR STATUS NAME 3 19 2 Operations 1 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 001 FDD 02 0000 103 000...

Page 82: ... 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 In the case of error retry OK a capital R will be placed at the beginning of the error status However it is not added to the error coun...

Page 83: ...om the floppy disk drive and insert the work disk 2 Select 6 from the Diagnostic Menu and press Enter the following message will be displayed 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 on the back of the computer to properly execute this test 3 Select Y or N and press Enter The following me...

Page 84: ...le 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 design...

Page 85: ...ert 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 e Typing 1 displays the message from step c above Typing 2 returns the test to the DIAGNOSTIC MEN...

Page 86: ...nother disk type 1 and the message from step a will be displayed again Entering 2 returns the test program to the DIAGNOSTIC MENU 4 DUMP program a When dump is selected the following message appears DIAGNOSTICS HARD DISK FLOPPY DISK DUMP VX XX Drive type select 1 FDD 2 HDD b Select a format type number If C or D is selected the display will go to step e Select drive number 1 A 2 B 1 C 2 D c Select...

Page 87: ...mber of printer ports 10 Extended Memory Size 11 The number of math co processors 12 CPU clock 13 PC card slot 3 22 2 Operations Selecting 8 from the DIAGNOSTIC MENU and pressing Enter displays the following system configuration SYSTEM CONFIGURATION BIOS ROM VERSION VX XX 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 ...

Page 88: ...splay Adapter b LCD Display Mode c VGA Segment Address d LCD Display Colors e Power On Display f Text Mode Stretch 3 Hard Disk a HDD Mode 4 Password 5 I O Ports a Serial Port b Parallel Port 6 Others a Power up Modes b CPU Cache c Battery Save Mode d Battery Save Options e Battery Level f Alarm Volume g System Beep h Panel Power On Off i Alarm Power On j Keyboard k Pointing Devices l Boot Priority...

Page 89: ... 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 MEMORY BIOS version x xx SYSTEM SETUP DISPLAY Display Adapter VGA compatible LCD Display Mode Color VGA Segment Address E000H LCD Display Colors 222K Colors Power On Disp...

Page 90: ...ettings are not changed HDD Mode Password Write Policy SETUP Options The SETUP screen is divided into functionally related groups This section describes each group and its options 1 Memory This group of options lists the computer s memory allocations You cannot change these values a Total This field displays the total amount of memory installed and is automatically calculated by the computer b Bas...

Page 91: ... Use this option to set the VGA segment address from the following option C000H E000H Default E400H NOTE In the DOS environment if you choose either E400H or C000H the Pop up window is not displayed when you press Fn F2 or Fn F3 hotkeys However the corresponding functions of the keys work d LCD Display Colors This option is used to select the color palette of the internal display when the LCD mode...

Page 92: ...h feature Default Disabled Disables the text mode stretch feature 3 Hard Disk This item displays the mode of the HDD for information only It cannot be changed Enhanced IDE Select this mode when using MS DOS Normal Windows or OS 2 Default To see the capacity of the hard disk use the CHKDSK command See your DOS documentation for details on using CHKDSK 4 Password This option allows you to set or res...

Page 93: ...CH Sets the address to 3BCH Not used Disables the port When you select one of the above options except for Not used a sub window similar to the one below appears to let you set the parallel port mode Options for this setting are ECP default and Std Bi Directional Option Mode ECP For most printers the port should be set to ECP With some other parallel devices the setting should be Std Bi Directiona...

Page 94: ...th changes in main memory Write through policy accesses main memory every time data is handled by the processor c Battery Save Mode This option is used to select Full Power or Low Power or User Setting of the BATTERY SAVE OPTION Full Power The following shows full power settings COM PCMCIA PRT Processing Speed High CPU Sleep Mode Disabled Display Auto Off Disabled HDD Auto Off Disabled System Auto...

Page 95: ...erates at low 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 s illumination off if you make no entry for the set period of time Disabled Disables ...

Page 96: ...l brightness for saving power e Battery Level When you use the computer for the first time or when you install a new or recharged battery the charge level is unknown to the system In this case the Battery Level options will be displayed to enable you to set the charge level to 100 75 50 or 25 E F 100 charge E F 75 charge E F 50 charge E F 25 charge E F Charge is unknown Displayed in TSETUP f Alarm...

Page 97: ... 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 i Alarm Power On This option lets you set the time for the system to turn on automatically For exampl...

Page 98: ... and Alt keys according to the following illustrations Ext Keyboard Fn key equivalent Use this option to set a key combination on an external keyboard to emulate the Fn key on the computer s internal keyboard Setting an Fn key equiva lent will enable you to use Hotkeys by pressing the set combination in place of the Fn key Disabled No Fn key equivalent Default Fn Equivalent Left Ctrl Left Alt Righ...

Page 99: ... to an optional port replicator both the AccuPoint and the external mouse are enabled l 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 th...

Page 100: ...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 Battery Pack Optional PC Card Optional Memory Card HDD Keyboard Sub battery and VGA board Display Top Cover and Display Assembly Mask FL inverter Board Membrane Switch LC...

Page 101: ...essories 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 3 Never work with wet or damp hands 4 The computer contains many sharp edges and corners so be careful not to injure yourself 5 Make sure that all replacement components meet the specifications for the...

Page 102: ...stics tests described in this manual 5 Do not perform any operations that are not necessary and use only the described procedures for disassembling and installing FRUs in the computer 6 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 7 You will remove and replace many screws when you disassem...

Page 103: ...s 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 causing the computer to operate abnormally you will need to reassemble the computer While assem bling the computer remember the following general points Take your time making sure you follo...

Page 104: ...lace 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 undertighteni...

Page 105: ...uter 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 Figure 4 1 Releasing the battery cover 5 Lift off the cover 6 Pull back the battery latch and lift out the battery pack Figure 4 2 Removing the battery pack NOTE For environmental reasons do not throw away a spent battery pack Please return spent battery...

Page 106: ...posed of Dispose of the battery as required by local ordinances or regulations Use only batteries recommended by Toshiba as re placements 1 Turn the computer off 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 battery cover and push it closed Be sure the battery cover latches securely engage the corre...

Page 107: ...fer to figure 4 4 1 Turn the computer off 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 Press the eject button on the computer the top button for the top card and the bottom button for the bottom card The card will pop out slightly for removal Figure 4 4 Removing the PC card ...

Page 108: ...Insert the PC card as shown in figure 4 5 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 When the card is fully seated an eject button will pop out the top button for the top connector and the bottom button for the bottom connector 5 Pull the eject button out s...

Page 109: ...attery pack and optional PC card as described in sections 4 2 and 4 3 3 Turn the computer upside down 4 Remove two M2x4 screws securing the memory module socket cover 5 Slide your fingernail or a thin object under the cover and remove it 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 Figure 4 7 Removing the mem...

Page 110: ... screw holes on the brace NOTE Do not touch the connectors on the memory module or on the com puter Debris on the connectors may cause memory access problems 2 Place your fingers above the connector and press firmly but gently to assure a solid connection The module should be seated level 3 Secure the module to the brace with two M2x4 screws Figure 4 8 Inserting the memory module 4 Lay the cover i...

Page 111: ...er 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 3 Remove two M2 5x6 screws securing the HDD frame to the computer 4 Pull the frame forward by its handle to disconnect the HDD 5 Remove the frame with the HDD Figure 4 9 Removing the frame with the HDD ...

Page 112: ...To install the HDD follow the steps below and refer to figures 4 9 and 4 10 1 Secure the frame to the HDD with four flat head M3x4 screws 2 Attach the metal cover 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 optional memory module optional PC card and battery pack as de scribed in sections 4 4 4 3 and ...

Page 113: ...er off Disconnect the AC power cord and all external cables connected to the computer 2 Remove the battery pack optional PC card optional memory module and HDD as described in sections 4 2 through 4 5 3 Release 14 latches on the base cover and remove it Figure 4 11 Removing the keyboard base 4 Lift out the keyboard and set it on the wrist rest ...

Page 114: ...lling the Keyboard To install the keyboard follow the steps below and refer to figures 4 11 and 4 12 1 Connect the keyboard cable to PJ13 on the system board 2 Seat the metal cover note the end that goes under and secure it with five M2 5x6 screws Be sure to replace the ground cable 3 Seat the keyboard 4 Seat the keyboard base and secure the 14 latches 5 Install the HDD optional memory module opti...

Page 115: ...r to figures 4 13 to 4 15 1 Turn the computer off Disconnect the AC power cord and all external cables connected to the computer 2 Remove the battery pack optional PC card optional memory module HDD and keyboard as described in sections 4 2 through 4 6 3 Disconnect the sub battery from PJ503 and remove the battery Figure 4 13 Removing the sub battery ...

Page 116: ...he VGA board connector from system board connector PJ16 Figure 4 14 Removing the VGA board 5 Rotate the board out and disconnect the VGA cable from PJ302 on the VGA board Figure 4 15 Disconnecting the cables from the VGA board ...

Page 117: ...ing connectors on the system board The LCD will not function if the cables are incorrectly connected 1 Connect the VGA cable to PJ302 on the VGA board 2 Seat the sub battery and connect it to PJ503 on the system board 3 Rotate the board into place and press to connect the VGA board connector to PJ16 on the system board 4 Install the keyboard HDD optional memory module optional PC card and battery ...

Page 118: ...cables connected to the computer 2 Remove the battery pack optional PC card optional memory module HDD keyboard and sub battery and VGA board as described in sections 4 2 through 4 7 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 Figure 4 16 Removing the top cover screws 4 Turn the computer over and lift back...

Page 119: ...teries recommended by Toshiba Installation of the wrong battery can cause the battery to explode or otherwise cause damage Figure 4 17 Removing the RTC battery 6 Disconnect the panel close sensor cable from PJ10 and the LED cable from PJ14 on the system board 7 Remove one M2 5x8 screw from the sub battery base Figure 4 18 Removing the top cover and display assembly ...

Page 120: ... 2 Secure one M2 5x8 silver screw on sub battery base 3 Connect the LED panel cable to PJ14 4 Connect the panel close sensor cable to PJ10 on the system board 5 Connect the Real Time Clock battery to PJ3 on the system board 6 Turn the computer upside down and secure three M2 5x8 silver screws and four M2 5x6 screws 7 Install the sub battery and VGA board keyboard HDD optional memory module optiona...

Page 121: ...k optional PC card optional memory module HDD keyboard sub battery and VGA board and top cover and display assembly as described in sections 4 2 through 4 8 3 Disconnect the HDD interface board flexible cable from PJ6 on the system board 4 Disconnect the membrane switch cable from PJ7 on the system board 5 Peel back the tape to reveal three M2 5x6 screws and remove the screws securing the HDD inte...

Page 122: ... below and refer to figures 4 19 and 4 20 1 Connect the HDD interface board flexible cable to PJ6 on the system board 2 Seat the membrane switch and secure it partially with tape 3 Seat the HDD interface board and secure it with three M2 5x6 screws 4 Connect the membrane switch cable to PJ7 on the system board 5 Install the top cover and display assembly sub battery and VGA assembly key board HDD ...

Page 123: ...ternal cables connected to the computer 2 Remove the battery pack optional PC card optional memory module HDD keyboard sub battery and VGA board top cover and display assembly and membrane switch as described in sections 4 2 through 4 9 3 Disconnect the flexible cable from PJ5 on the system board 4 Remove four M2 5x6 screws and lift out the drive Figure 4 21 Removing the diskette drive FDD ...

Page 124: ...he flexible cable to the FDD 2 Secure the frame to the diskette drive with four M2x2 screws 3 Engage the latches on the frame with corresponding notches on the computer 4 Seat the diskette drive and secure it with four M2 5x6 screws 5 Connect the flexible cable to PJ5 on the system board 6 Install the membrane switch top cover and display assembly sub battery and VGA assembly keyboard HDD optional...

Page 125: ...witch and FDD as described in sections 4 2 through 4 10 3 Disconnect the AC power cable from PJ502 on the system board and remove the tape from the cable note that the cable is threaded under the FDD 4 Remove one M2 5x6 screw and lift out the VGA cable guard 5 Remove one M2 5x6 screw securing the holder assembly and one M2 5x10 silver screw securing the AC PS unit 6 Remove tape securing the holder...

Page 126: ...23 and 4 24 1 Seat the power cord socket in its slots 2 Seat the holder assembly secure it with two M2 5x6 screws and replace the tape 3 Seat the AC PS unit 4 Secure the AC PS unit with one M2 5x10 silver screw 5 Connect the AC power cable to PJ502 and secure the cable with tape 6 Seat the VGA cable guard and secure it with one M2 5x6 screw 7 Install the FDD top cover and display assembly membrane...

Page 127: ... as described in sections 4 2 through 4 11 3 Remove six M2 5x6 screws one M2 5x8 screw and the AC PS unit support 4 Lift out the system board Figure 4 25 Removing the system board Installing the System Board To install the system board follow the steps below and refer to figure 4 25 1 Seat the system board and the AC PS unit support 2 Secure six M2 5x6 screws and one M2 5x8 screw 3 Install the AC ...

Page 128: ...bly 3 Remove two rubber seals from the display hinges to expose two screws securing the display mask 4 Remove two M2 5x6 screws that were covered by the rubber seals 5 Carefully insert your fingers between the mask and the LCD panel and pry open the latches Start with the six latches across the top of the display mask 6 Continue releasing the mask along the sides four latches on each side at the b...

Page 129: ...h at the smaller display support and three latches at the larger display support 2 Continue along the bottom of the display three latches on each side four latches and across the top six latches 3 Secure the display mask with two M2 5x6 screws 4 Attach two rubber seals to cover the screws 5 Install the optional PC card optional memory card and battery pack as described in sections 4 4 4 3 and 4 2 ...

Page 130: ... battery pack optional PC card optional memory module and display mask as described in 4 2 4 3 4 4 and 4 13 3 Remove tape covering the FL inverter board cables 4 Remove two M2 5x6 screws securing the FL inverter board 5 Remove one M2 5x6 screw securing the contrast control board 6 Disconnect the contrast control board cable 7 Disconnect the FL inverter cable from CN1 and the FL cable from CN2 on t...

Page 131: ... FL cable to CN2 on the FL inverter board and seat the board 3 Connect the contrast control board cable and seat the board 4 Secure the contrast control board with one M2 5x6 screw 5 Secure the FL inverter board with two M2 5x6 screws 6 Replace the tape over the FL inverter board cables 7 Install the display mask optional memory card optional PC card and battery pack as described in 4 13 4 4 4 3 a...

Page 132: ...fully rotate the LCD module from right to left out of the display cover and disconnect the display cable from CN1N on the LCD module and from the VGA cable in the computer Figure 4 28 Removing the LCD module NOTE Metal edges on the LCD module are sharp so be careful not to cut yourself Installing the Color LCD Module To install the LCD module follow the steps below and refer to figure 4 28 1 Conne...

Page 133: ...adapter and all external cables con nected 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 13 4 14 and 4 15 3 Turn the LCD module over and unbend 11 latches securing the LCD module to its frame 4 Remove four screws securing the LCD module to the frame Figure 4 29 Unbending the col...

Page 134: ...module over and remove two M2x3 4 screws securing the FL holder Figure 4 30 Removing screws 7 Unthread the cable which is connected to the FL tube Be sure no dust or debris contaminates the unit Figure 4 31 Unthreading the cable ...

Page 135: ... 4 29 to 4 32 1 Seat the FL tube gently press it securely in place and cover it with the end of the reflector sheet Be careful not to pull or apply tension to the reflector sheet 2 Seat the FL holder and thread the FL tube cable into place 3 Secure the FL holder with two M2x3 4 screws 4 Seat the LCD module in its frame and secure it with four screws 5 Secure the 11 latches of the frame 6 Install t...

Page 136: ...talling 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 2 Be careful to align the holes at the four corners of the 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...

Page 137: ...mmend 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 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 br...

Page 138: ...e sure to wear a wrist or ankle ground when handling the module 7 Do not expose the module to 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 ...

Page 139: ... 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 ...

Page 140: ...100CS B 1 Appendix B Board Layout B 1 System Board Front View Figure B 1 System Board layout front ...

Page 141: ...B 2 100CS B 2 System Board Back View Figure B 2 System Board layout back ...

Page 142: ...stem board ICs and connectors back Mark Number Name A IC8 System Clock B IC11 RTC Controller C IC14 BIOS ROM D IC19 ASYNC Controller E IC20 Keyboard Controller F IC24 IPS Controller G IC36 P REP Controller H PJ4 PRT RGB I F Connector I PJ5 FDD Connector J PJ7 HDD Connector K PJ8 ASYNC I F Connector L PJ9 P REP Connector M PJ10 Panel Sensor Connector N PJ12 Ext Keyboard Connector O PJ13 Keyboard Co...

Page 143: ...0 I O 07 HD34 100 I O 08 HD38 100 I O 09 HD33 100 I O 10 GND 11 B3V 12 HD39 100 I O 13 HD32 100 I O 14 HD40 100 I O 15 HD44 100 I O 16 HD41 100 I O 17 HD45 100 I O 18 B3V 19 GND 20 HD42 100 I O 21 HD46 100 I O 22 HD43 100 I O 23 HD47 100 I O 24 HD16 100 I O 25 HD20 100 I O 26 GND 27 B3V 28 HD17 100 I O 29 HD21 100 I O 30 HD18 100 I O 31 HD22 100 I O 32 HD19 100 I O 33 HD23 100 I O 34 B3V 35 GND 36...

Page 144: ... O 66 B3V 67 GND 68 HD48 100 I O 69 HD52 100 I O 70 HD49 100 I O 71 HD53 100 I O 72 HD50 100 I O 73 HD54 100 I O 74 GND 75 B3V 76 HD51 100 I O 77 HD55 100 I O 78 HD56 100 I O 79 HD60 100 I O 80 HD57 100 I O 81 HD61 100 I O 82 HD58 100 I O 83 HD62 100 I O 84 HD59 100 I O 85 HD63 100 I O 86 GND 87 CAS1 001 O 88 CAS0 001 O 89 CAS3 001 O 90 CAS2 001 O 91 CAS5 001 O 92 CAS4 001 O 93 CAS7 001 O 94 CAS6 ...

Page 145: ...ND 126 GND 127 MA00 101 O 128 MA01 101 O 129 MA02 101 O 130 MA03 101 O 131 MA04 101 O 132 MA05 101 O 133 GND 134 MA07 101 O 135 MA06 101 O 136 MA09 101 O 137 MA08 101 O 138 MA11 101 O 139 MA10 101 O 140 GND C 3 PJ3 Ni Mh RTC Battery Connector 3 pin Table C 3 Ni Mh RTC battery connector pin assignments 3 pin Pin No Signal name I O Pin No Signal Name I O 01 BATTERY 02 NC 03 GND ...

Page 146: ...USY 100 I 20 PD0 100 I O 21 ACK 000 I 22 STROB 000 O 23 SLIN 000 I O 24 PD4 100 I O 25 PINT 000 O 26 PD5 100 I O 27 AUTFD 000 O 28 PD6 100 I O 29 VCC 30 PD7 100 I O C 5 PJ5 FDD Connector 26 pin Table C 5 FDD connector pin assignments 26 pin Pin No Signal name I O Pin No Signal Name I O 01 IFSSEL 000 O 02 GND 03 IFRDAT 000 I 04 GND 05 IFWPRO 000 O 06 GND 07 IFTRK0 000 I 08 GND 09 IFWEN 000 O 10 GND...

Page 147: ...00 O 23 GND 24 IOCRDY 100 I 25 GND 26 HDCS0 000 O 27 GND 28 HDCS1 000 O 29 GND 30 PSPNBP 100 O 31 GND 32 HDDLED 000 I 33 GND 34 GND 35 GND 36 SD00 100 I O 37 GND 38 SD01 100 I O 39 GND 40 SD02 100 I O 41 GND 42 SD03 100 I O 43 GND 44 SD04 100 I O 45 GND 46 SD05 100 I O 47 GND 48 SD06 100 I O 49 GND 50 SD07 100 I O 51 GND 52 GND 53 GND 54 SD15 100 I O 55 GND 56 SD14 100 I O 57 GND 58 SD13 100 I O 5...

Page 148: ... VCC 79 GND 80 VCC 81 GND 82 VCC 83 GND 84 VCC 85 GND 86 VCC 87 GND 88 VCC 89 GND 90 VCC C 7 PJ8 Asynchronous Connector 9 pin Table C 7 Asynchronous connector pin assignments 9 pin Pin No Signal name I O Pin No Signal Name I O 001 DCD1 101 I 002 RXD1 001 I 003 TXD1 011 O 004 DTR1 111 O 005 GND 006 DSR1 101 I 007 RTS1 101 O 008 CTS1 101 I 009 RI1 101 I ...

Page 149: ... VCC 23 VCC O 24 VCC 25 NC 26 NC 27 NC 28 IRQ7 110 I 29 IRQ9 110 I 30 IRQ12 110 I 31 ERROR 000 I 32 PE 100 I 33 ACK 000 I 34 PINT 000 O 35 STROB 000 O 36 PD1 100 I O 37 PD3 100 O 38 PD5 100 I O 39 GND 40 ARED 120 O 41 AGREEN 120 O 42 ABLUE 120 O 43 GND 44 GND 45 GND 46 GND 47 LA21 110 O 48 LA22 110 O 49 AEN 110 O 50 BALE 110 O 51 MEWR 010 O 52 IOCS16 010 O 53 MECS16 010 O 54 REFRSH 010 O 55 PCSMB ...

Page 150: ...10 O 97 GND 98 SA15 110 O 99 SA18 110 O 100 SA13 110 O 101 GND 102 SD07 110 I O 103 SA16 110 O 104 SD05 110 I O 105 GND 106 SD03 110 I O 107 SA09 110 O 108 SD11 110 I O 109 GND 110 SD00 110 I O 111 SD13 110 I O 112 SD15 110 I O 113 GND 114 NC 115 NC 116 NC 117 NC 118 NC 119 NC 120 NC 121 GND 122 PRDT2 000 I 123 MOUSCK 100 O 124 MOUSDT 100 I 125 NC 126 NC 127 GND 128 LOUTRM O 129 LOUTRP O 130 NC 13...

Page 151: ... 000 I 167 EXKBDT 100 I 0 168 EXKBCK 100 O 169 JOYR 000 I 170 NC 171 GND 172 NC 173 LOUTLM O 174 LOURLP O 175 NC 176 NC C 9 PJ10 Panel Sensor Connector 2 pin Table C 9 Panel sensor connector pin assignments 2 pin Pin No Signal name I O Pin No Signal Name I O 01 PNLOFF I 02 GND C 10 PJ12 Ext Keyboard Connector 6 pin Table C 10 Ext Keyboard connector pin assignments 6 pin Pin No Signal name I O Pin ...

Page 152: ...11 000 O 12 KBOT03 000 O 13 KBOT04 000 O 14 KBOT05 000 O 15 KBOT06 000 O 16 KBOT07 000 O 17 KBOT08 000 O 18 KBOT01 000 O 19 KBOT00 000 O 20 IPSY 100 I 21 GND 22 IPSX 100 I 23 IPSY 100 I 24 VCC 25 IPSX 100 I C 12 PJ14 LED Connector 12 pin Table C 12 LED connector pin assignments 12 pin Pin No Signal name I O Pin No Signal Name I O 01 GND 02 PONGRN 110 O 03 PONORG 110 O 04 DRVLED 110 O 05 CAPLED 110...

Page 153: ...CADB00 100 O 027 BVDA2 100 I 028 BVDB2 100 I 029 CADA01 100 O 030 CADB01 100 O 031 REGA 000 O 032 REGB 000 O 033 CADA02 100 O 034 CADB02 100 O 035 NC 036 NC 037 CADA03 100 O 038 CADB03 100 O 039 WAITA 000 I 040 WAITB 000 I 041 CADA04 100 O 042 CADB04 100 O 043 CRESTA 100 O 044 CRESTB 100 O 045 CADA05 100 O 046 CADB05 100 O 047 NC 048 NC 049 CADA06 100 O 050 CADB06 100 O 051 CADA25 100 O 052 CADB25...

Page 154: ...CADB09 100 O 097 CADA09 100 O 098 CADB09 100 O 099 IORA 000 O 100 IORB 000 O 101 CADA11 100 O 102 DADB11 000 O 103 NC 104 NC 105 OEA 000 O 106 OEB 000 O 107 CE2A 000 I O 108 CE2B 000 I O 109 CADA10 100 I O 110 CADB10 100 I O 111 CDA15 100 I O 112 CDB15 100 I O 113 CE1A 000 O 114 CE1B 000 O 115 CDA14 100 I O 116 CDB14 100 I O 117 CDA07 100 I O 118 CDB07 100 I O 119 CDA13 100 I O 120 CDB13 100 I O 1...

Page 155: ...NVGA 000 O 28 D23 100 I O 29 CLKVGA 100 O 30 D22 100 I O 31 GND 32 D21 100 I O 33 RESET 000 O 34 D20 100 I O 35 PANEL1 100 I 36 GND 37 PANEL0 100 I 38 D19 100 I O 39 FLTEN 000 O 40 D18 100 I O 41 GND 42 D17 100 I O 43 BE0 000 O 44 D16 100 I O 45 BE1 000 O 46 GND 47 MIO 000 O 48 D24 100 I O 49 A06 100 I 50 D25 100 I O 51 GND 52 D26 100 I O 53 A06 100 I 54 D27 100 I O 55 A07 100 I 56 GND 57 A08 100 ...

Page 156: ...85 A04 100 I 86 GND 87 A05 100 I 88 D04 100 I O 89 A12 100 I 90 D03 100 I O 91 GND 92 D02 100 I O 93 A13 100 I 94 D01 100 I O 95 A14 100 I 96 GND 97 A15 100 I 98 D00 100 I O 99 A23 100 I 100 D07 100 I O 101 GND 102 D06 100 I O 103 A24 100 I 104 D05 100 I O 105 A25 100 I 106 GND 107 A22 100 I 108 CHSYNC 100 I 109 A21 100 I 110 CVSYNC 100 I 111 GND 112 GND 113 B3V 114 ARED 100 I 115 B3V 116 AGREEN 1...

Page 157: ...2 _ 0C 8C 4E F0 4E 13 0D 8D 55 F0 55 15 BkSp 0E 8E 66 F0 66 16 Tab 0F 8F 0D F0 0D 17 Q 10 90 15 F0 15 18 W 11 91 1D F0 1D 19 E 12 92 24 F0 24 20 R 13 93 2D F0 2D 21 T 14 94 2C F0 2C 22 Y 15 95 35 F0 35 23 U 16 96 3C F0 3C 2 24 I 17 97 43 F0 43 2 25 O 13 98 44 F0 44 2 26 P 19 99 4D F0 4D 2 27 1A 9A 54 F0 54 28 1B 9B 5B F0 5B 29 42 2B AB 5D F0 5D 5 30 Caps Lock 3A BA 58 F0 58 31 A 1E 9E 1C F0 1C 32 ...

Page 158: ...B3 41 F0 41 2 54 34 B4 49 F0 49 2 55 35 B5 4A F0 4A 2 57 Shift R 36 B6 59 F0 59 58 Ctrl 1D 9D 14 F0 14 3 60 Alt L 38 B8 11 F0 11 3 61 Space 39 B9 29 F0 29 62 ALT R E0 38 E0 B8 E0 11 E0 F0 11 75 Ins E0 52 E0 D2 E0 70 E0 F0 70 1 76 Del E0 53 E0 D3 E0 71 E0 F0 71 1 79 E0 4B E0 CB E0 6B E0 F0 6B 1 80 Home E0 47 E0 C7 E0 6C E0 F0 6C 1 81 End E0 4F E0 CF E0 69 E0 F0 69 1 83 E0 48 E0 C8 E0 75 E0 F0 75 1 ...

Page 159: ...F8 42 C2 0A F0 0A 120 F9 43 C3 01 F0 01 121 F10 44 C4 09 F0 09 122 F11 57 D7 78 F0 78 3 123 F12 58 D8 07 F0 07 3 124 PrintSc 6 6 6 6 6 126 Pause 7 7 7 7 7 202 Fn 4 Notes 1 Scan codes differ by mode 2 Scan codes differ by overlay function 3 Combination with Fn key makes different codes 4 Fn key does not generate a code by itself 5 This key corresponds to key No 42 in 102 key model 6 Refer to table ...

Page 160: ...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 E0 AA E0 B6 E0 2A E0 36 Set 2 E0 F0 12 E0 F0 59 E0 12 E0 59 Table D 3 Scan codes in Numlock mode Cap Key Code set 1 Code set 2 No top Make Break Make Break 75 INS E0 2A E0 52 E0 02 E0 AA E0 12 E0 70 E0 F0 70 E0 F0 12 76 DEL E0 2A E0 53 ...

Page 161: ...CC 73 F0 73 25 O 6 4D CD 74 F0 74 26 P 4A CA 7B F0 7B 37 J 1 4F CF 69 F0 69 38 K 2 50 D0 72 F0 72 39 L 3 51 D1 7A F0 7A 40 4E CE 79 F0 79 52 M 0 52 D2 70 F0 70 53 33 B3 41 F0 41 54 53 D3 71 F0 71 55 E0 35 E0 B5 40 4A E0 F0 4A Table D 6 Scan codes with Ctrl key Key Code set 1 Code set 2 top Shift Make Break Make Break Prt Sc Common E0 2A E0 37 E0 B7 E0 AA E0 12 E0 7C E0 F0 7C E0 F0 12 Ctrl E0 37 E0...

Page 162: ...100CS E 1 Appendix E Key Layouts E 1 United States US Keyboard Figure E 1 US keyboard E 2 United Kingdom UK Keyboard Figure E 2 UK keyboard ...

Page 163: ...E 2 100CS E 3 German GR Keyboard Figure E 3 GR keyboard E 4 French FR Keyboard Figure E 4 FR keyboard ...

Page 164: ...100CS E 3 E 5 Spanish SP Keyboard Figure E 5 SP keyboard E 6 Italian IT Keyboard Figure E 6 IT keyboard ...

Page 165: ...E 4 100CS E 7 Scandinavian SC Keyboard Figure E 7 SC keyboard E 8 Swiss German SL Keyboard Figure E 8 SL keyboard ...

Page 166: ...1 17 SLIN 2 PD0 11 BUSY Figure F 1 Printer wraparound connector F 2 RS 232 C Wraparound Connector 3 TD 2 RD 7 RTS 8 CTS 1 CD 4 DTR 6 DSR 9 RI Figure F 2 RS 232 C wraparound connector F 3 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 ...

Page 167: ...F 2 100CS F 4 RS 232 C Direct Cable 9 Pin to 25 Pin 1 CD 4 RTS 2 RD 2 TD 3 TD 3 RD 4 DTR 5 CTS 6 DSR 22 RI 5 GND 7 GND 7 RTS 8 CD 6 DSR 20 DTR 8 CTS 9 RI Figure F 4 RS 232 C direct cable 9 pin to 25 pin ...

Page 168: ...ert the the diagnostics disk into the FDD and turn on the power 5 If the system BIOS is an older version the following message is displayed Machine name ST100CS May I rewrite BIOS Y Yes N No NOTE Y or N must be entered in upper case letters 6 If you select Y the BIOS will be overwritten and the following message will be displayed CHGBIOS CHanGe BIOS Utility for 100 Vx xx C Copyright 1991 95 Toshib...

Page 169: ... power to the computer 3 Remove the external cable and PC card 4 Turn the power on while holding down the F12 key Keep holding down the key until the system speaker sounds a beep 5 When the message is displayed insert the the diagnostics disk into the FDD Press Enter to start the BIOS rewrite 6 When the BIOS rewrite is finished eject the the diagnostics disk and press the reset switch to restart t...

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