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400 Series

2-1

2.1

Troubleshooting

Chapter 2 describes how to determine if a Field Replaceable Unit (FRU) in the 400 series is
causing the computer to malfunction. The FRUs covered are:

1.

Power Supply

2.

System Board

3.

Sound Board

4.

Floppy Disk Drive

5.

Hard Disk Drive

6.

Keyboard

7.

Display

8.

VGA Board

9.

CD-ROM Drive

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:

1.

A 400 series Diagnostics Disk

2.

A Phillips screwdriver (2 mm)

3.

A Toshiba MS-DOS system disk(s)

4.

A 2DD or 2HD formatted work disk for floppy disk drive testing

5.

A cleaning kit for floppy disk drive troubleshooting

6.

A printer port LED

7.

An RS-232-C wraparound connector

8.

A printer wraparound connector

9.

A multimeter

10.

An external CRT

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Summary of Contents for Satellite Pro 400CDT

Page 1: ...quadruple speed 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 and ISO 9660 Memory Standard with 8 MB of CMOS RAM This includes 640 KB of conventional memory and 7360 KB of extended memory which can be utilized as expanded memory com patible w...

Page 2: ... 2 compatible keyboard or a PS 2 compatible mouse can be connected to this port The computer automatically recognizes which device is connected FDD port Enables a connection of the external FDD attachment if the CD ROM module is installed inside the system unit PC card slot Supports up to two Personal Computer Memory Card International Association PCMCIA standard version release 2 0 cards The uppe...

Page 3: ...frared port This machine incorporates an IrDA1 0 115 2Kbps supported standard infrared transmitter and receiver Sound System A Sound BlasterTM ProTM compatible sound system provides capability to record sound and play it back with a built in microphone and speaker The sound system is equipped with a volume control dial headphone jack microphone jack and audio line in jack ...

Page 4: ... 4 400 Series The 400 Series Personal Computer is shown in figure 1 1 Figure 1 1 400 series personal computer The 400 system configuration is shown in figure 1 2 Figure 1 2 400 system unit configuration ...

Page 5: ...400 Series 1 5 1 2 System Unit Block Diagram Figure 1 3 is a block diagram of the 400 series system unit Figure 1 3 400 series system board block diagram ...

Page 6: ... 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 may 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 supported ...

Page 7: ...nterface control ISA bus access control DMAC control DMA address generation I O control Suspend Resume sequence Memory control IAS bus interface control Refresh address generation I O register control Suspend Resume sequence PCMCIA Controller Gate Array 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 ...

Page 8: ...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 of bytes memory Fourteen bytes of memory are used for the calendar and clock the remaining 114 bytes are used for the system configuration data ...

Page 9: ... 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 Item 2 MB mode 1 MB mode Storage capacity KB Unformatted 2 000 1 000 Formatted 1 311 737 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 sp...

Page 10: ...c disk and mini winchester type magnetic heads The 400 series 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 Items MK1926FCV Storage capacity MB Formatted 815 Number of disks 3 Data heads 6 Data surfaces 6 Bytes per sector 512 Rotation speed rpm 4200 Recording method 8 9 RLL ...

Page 11: ...he keyboard controller on the system board through a 25 pin flat cable The 400 series pointer control stick located in the center of the keyboard provides convenient control of the cursor without requiring desk space for a mouse The keyboard is shown in figure 1 6 See Appendix E for optional keyboard configurations Figure 1 6 Keyboard ...

Page 12: ...CD ROM drive are listed in table 1 3 Table 1 3 CD ROM specifications Item 1 mode 2 mode 4 mode Data Capacity bytes block Mode 1 2 048 2 048 2 048 Mode 2 2 336 2 336 2 336 Transfer Rate Sustained Block transfer speed blocks s 75 150 300 Sustained Data transfer speed kbytes s Mode 1 150 300 600 Mode 2 171 342 684 ATAPI Burst Mbytes s 3 33 3 33 3 33 Access time ms Average Random Access 360 255 210 Av...

Page 13: ...ceives 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 STN LCD is shown in figure 1 8 Figure 1 8 STN color LCD The specifications for the LCD are listed in table 1 4 Table 1 4 STN color LCD specifications Item Specifications Number of Do...

Page 14: ...upplies high frequency current to light the LCD s Fluorescent Lamp The specifications for the FL inverter are listed in table 1 5 Table 1 5 STN color FL inverter board specifications Item Specifications Input Voltage VDC 5 Power W 4 25 Output Voltage VAC 1 100 Current mA 5 0 Frequency KHz 40 ...

Page 15: ...uper VGA SVGA for external display The 400CDT LCD receives 18 bit data signals data enable signals and has a shift clock for data transmission All signals are CMOS level compatible 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 dots 640x480 Dot pitch mm 0 33...

Page 16: ...es high frequency current to light the LCD s Fluorescent Lamp The specifications for the FL inverter are listed in table 1 7 Table 1 7 FL inverter board specifications Item Specifications Input Voltage VDC 5 Power W 4 25 Output Voltage VAC 1 100 r m s Current mA 4 6 2 8 Frequency KHz 40 ...

Page 17: ...ons 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 7 Calculates the remaining battery capacity The power supply output rating is specified in table 1 8 Table 1 8 Power supply output rating DC Regulation Use for Name voltage t...

Page 18: ...attery 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 400 series The icon shows the status of the removable battery pack The status of each can be determined by...

Page 19: ... are two types of charge quick charge when the system is powered off and trickle charge when the system is powered on Table 1 10 Time required for quick charges Charging time Power off About 2 to 3 hours Power on About 5 to 8 hours 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...

Page 20: ... the backup battery Table 1 11 Backup battery charging data preservation time Time Charging Time Power On 20 H Power Off 20 H Data preservation period full charge 4 H 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...

Page 21: ...ics 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 1 A 400 series Diagnostics Disk 2 A Phillips screwdriver 2 mm 3 A Toshiba MS DOS system disk s 4 A 2DD or 2HD formatted work disk for floppy disk drive testing 5 A cleaning kit for floppy disk drive troubleshoot...

Page 22: ...rocedures 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 23: ...400 Series 2 3 Figure 2 1 Troubleshooting flowchart 1 2 ...

Page 24: ...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 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...

Page 25: ...If an error is detected on the display test perform the display troubleshooting procedures in section 2 8 6 If an error is detected on the CD ROM test perform the CD ROM drive trouble shooting procedures in section 2 9 ...

Page 26: ...d and supplying power When the AC IN icon is green the AC power cord is connected and supplying power to the 400 series If the AC IN icon does not light the AC power cord is not supplying power to the 400 series or the AC power cord is not attached to the 400 series 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 function...

Page 27: ...tery and system board terminals are clean and not bent If the battery and or system board terminal appears dirty clean it them gently with a cotton swab dipped in alcohol If either terminal looks bent or damaged replace the battery or system board If the terminals are 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 ...

Page 28: ...ssage 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 data is lost or when the system configuration preserved in the RTC memory CMOS type memory is not the same as the actual configuration If you press the F1 key as the message...

Page 29: ... as the message instructs WARNING RESUME FAILURE PRESS ANY KEY TO CONTINUE This 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 ...

Page 30: ... 25 or 26 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 BAD BATTERY ERROR 8 FIRST 64KB MEMORY ERROR 9 FIRST 64KB MEMORY PARITY ERROR 10 VRAM ERROR 11 KBC ERROR 12 SYSTEM MEMORY ERROR 13 SYSTEM MEMORY PARITY ERROR 14 EXTENDED MEMORY ERROR 15 EXTE...

Page 31: ...bar and turn on the computer s power 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 print...

Page 32: ...RST 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 ...

Page 33: ...lowing error codes are displayed go to Procedure 5 00h 01h 02h 03h 04h 05h 06h 07h 0Ah 0Bh 0Ch 0Dh 18h 1Fh 25h 30h 40h 41h 42h 4Ah 65h 70h 80h 90h A0h C0h 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 go to t...

Page 34: ...l LED status is FFh normal status go to Procedure 4 8 If the final LED status matches any of the test status values in table 2 2 perform Procedure 5 Table 2 2 Printer port LED resume mode error status Error status Meaning of status F1H RAM BIOS error F2H The system has optional ROM or optional card CGA MDA F5H Main memory checksum error F6H Video RAM checksum error F7H Extended memory checksum err...

Page 35: ...teps 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 ...

Page 36: ...re 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 functi...

Page 37: ...dis abled 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 ...

Page 38: ... system 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 Check 2 The cable may be defective or damaged Replace the 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 Re...

Page 39: ...system disk and turn on the computer Then perform the follow ing checks Check 1 Type C and press Enter If you cannot change to drive C go to Check 2 If you can change to drive C go to Procedure 2 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 cr...

Page 40: ...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 400 series If the error messa...

Page 41: ...age 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 400 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 app...

Page 42: ...able 2 4 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 err...

Page 43: ...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 400 series 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 Keyboa...

Page 44: ...RT Check Connect the external CRT to the 400 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 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 Procedu...

Page 45: ...nected by two cables The LCD module and system board are connected by two signal 400CDT 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 400CS display connection ...

Page 46: ...2 26 400 Series Figure 2 4 400CDT display connection If any of these cables is not connected firmly reconnect it and repeat Procedures 1 and 2 If the problem still exists perform Procedure 5 ...

Page 47: ...display 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 ...

Page 48: ...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 400 series Diagnostics Disk After Toshiba MS DOS loads run the diagnostic program stored on the test program dis kette Insert a test CD Toshiba ...

Page 49: ...lowing checks Check 1 Make 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 ...

Page 50: ...try to run the test in virtual 86 mode the following message will be dis played 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 documentation for information on the config sys file 4 Go to drive C and at the DOS prompt C type TDIAGS MS DOS loads the diagnostic test and displays the following screen TOSHIBA...

Page 51: ...floppy disk drive test all tests 3 5 inch 2HD 2DD disk for external 3 5 inch FDD A cleaning kit to clean the floppy disk drive heads Head Cleaning A PCMCIA wraparound connector for the I O card test PCMCIA test A printer wraparound connector for the printer wraparound test Printer test An RS 232 C wraparound connector for the RS 232 C port wraparound test ASYNC test A CD test media The port replic...

Page 52: ... ROM test only then press Enter The following menu will 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 400 series DIAGNOSTIC TEST MENU ...

Page 53: ... Exit Refer to sections 3 4 through 3 16 for detailed descriptions of Diagnostic Tests 1 through 12 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 4 Select the option you want to execute and press Enter The following message will appear SYSTEM TEST XXXXXXX xxx DIAGNOSTIC TEST VX X...

Page 54: ...ecting YES 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 function as follows 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 the test runni...

Page 55: ... 01 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 TFT color display 400CDT only 5 FDD 01 Seque...

Page 56: ...a 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 wrap around Internal 02 PCMCIA wrap around External 12 SOUND 01 CODEC Recoding Playback 02 FM Synthesizer 03 SINE Wave Playback 0...

Page 57: ...o FFFFFh 64KB Subtest 02 Not used Subtest 03 Not used Subtest 04 Fan on off This subtest checks fan operation The fan cable is securely connected to PJ11 on 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 Subtest 05 Thermistor check This...

Page 58: ...entional 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 depe...

Page 59: ...electing subtest 05 the following message will appear Extended memory size 2 8 MB 3 16 MB 4 32 MB Select the number that corresponds to the memory card installed in the 400 series Subtest 06 Cache memory To test the cache memory a pass through write read comparison of 5A data is run repeatedly to test area 7000 Program size to 7000 7FFF 32 KB to check the hit miss ratio on off status One test take...

Page 60: ...subtest 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 ke...

Page 61: ...own 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 port replicater This subtest checks whether a PS 2 mouse is connected If this test does not detect an error it...

Page 62: ...ying the location parameters When the stick is pressed to wards 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 IPS TEST PROGRAM V1 00 PRESS BU...

Page 63: ... mode 1 13h This subtest 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 ...

Page 64: ...turn 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 YELLOW INTENSE WHI...

Page 65: ...ssing Enter toggles between tests 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 Pressing Enter toggles between tests To exit this subtest and return to the DISPLAY TEST menu press Ctrl Break GREEN RED BRO...

Page 66: ...exit this subtest and return to the DISPLAY TEST menu press Ctrl Break Subtest 07 640x350 480 Graphics Display mode 10 74 12 This subtest displays even dots odd dots and all dots in the 640x350 and 640x480 dot graphics mode 10 74 12 as shown below Pressing Enter changes the size of the displayed image To exit this subtest and return to the DISPLAY TEST menu press Ctrl Break ...

Page 67: ...HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHH...

Page 68: ...and 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 TFT color display 400CDT only 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 shows many colors at once the next three ...

Page 69: ...n with an appropriate response to execute the test 1 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 2 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 3 Select the track you want the test to start on and press Enter Simply ...

Page 70: ...stic Test Menu Refer to step 3 at the beginning of this section to set the start track Subtest 02 Sequential Read Write This subtest continuously writes data pattern B5ADADh to all the specified tracks selected in subtest 01 The data is then read and compared to the original data Subtest 03 Random Address Data This subtest writes random data to random addresses on all tracks defined in subtest 01 ...

Page 71: ...te 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 400 series supports three printer channels Select the printer channel nu...

Page 72: ...ector 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 L...

Page 73: ... 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 C wraparound connector 34M741621G01 must be connected to the RS 232 C port The RS 232 C wraparou...

Page 74: ...s 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 Request Level of IRQ 4 3 and 5 from the send side NOTE Before conducting subtests 06 to 08 you must execute SIRDRV COM to enable the infrared communication port Subtest 06 Infra_red Wrap_around test This subtest...

Page 75: ...the Toshiba MS DOS FDISK command which will set the partition Next execute the Toshiba 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 a...

Page 76: ...e last two digits indicate the error status code as explained in table 3 3 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 dat...

Page 77: ...e CE 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 speci...

Page 78: ...Current 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 ...

Page 79: ...e erased This subtest checks the real time clock increments making sure the date and time are displayed in the following format Current date 12 31 1994 Current time 23 59 58 Pressing Enter displays the following Current date 01 01 1995 Current time 00 00 00 PRESS Enter KEY TO EXIT TEST Press Ctrl Break to exit ...

Page 80: ...TICS TEST MENU press Enter and follow the directions on the screen The NDP test contains one subtest that tests the 400 series 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 81: ...ted 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...

Page 82: ... Subtest 02 FM Synthesizer Test the OPL YMF262 functions Connect the headphone and check the scale of right and left side 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 using the oscilloscope observe the...

Page 83: ...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 An enhanced port replicator must be connected to conduct the line out test ...

Page 84: ...ontains four subtests that test the 400 series CD ROM functions Subtest 01 Sequential Read This subtest is a sequential reading of one block unit 512 bytes of all logical addresses Subtest 02 Random Address Data This subtest reads one block data and multi block data from a random address 200 times Subtest 03 Read Specified Address This subtest reads one block data from a specified address Subtest ...

Page 85: ...yboard 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 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 Printe...

Page 86: ...run 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 ...

Page 87: ... name Error code Error status name CD ROM 01 BAD COMMAND 02 ILLEGAL LENGTH 03 UNIT ATTENTION 04 MEDIA CHANGE REQUEST 05 MEDIA DETECTED 06 ADDITIONAL SENSE 09 BOUNDARY ERROR 11 CORRECTED DATA ERROR 20 DRIVE NOT READY 40 SEEK ERROR 80 TIME OUT 90 RESET ERROR B0 ADDRESS ERROR ...

Page 88: ... 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 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 5 DWF 0 DWF error is not detected Drive write fault 1 Write fault condition occurred 4 DSC 0 The hard disk ...

Page 89: ...ectable 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 90: ... the function transfer the contents 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 19 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 trac...

Page 91: ...other than a bad track is detected the program is automatically termi nated 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 TEST 2 and pressing Enter in the DIAGNOSTIC MENU displays the fol...

Page 92: ... message does not appear when other disks are installed d 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 e below WARNING Current DISK data will be completely destroyed Press Bad cyli...

Page 93: ...er number dddd Press Head number dd Press Enter to return to the Hard Disk Format menu 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 Bad tr...

Page 94: ...cting 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 DIA...

Page 95: ...atus 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 21 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 ...

Page 96: ...us 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 co...

Page 97: ...work disk in the FDD If a work disk is not loaded an error will be generated during the FDD testing 1 Remove the diagnostics disk from 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 conne...

Page 98: ... 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 ...

Page 99: ...ouble 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 des...

Page 100: ...nsert 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 M...

Page 101: ...opy another 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 S...

Page 102: ...mber of printer ports 9 Extended Memory Size 10 The number of math co processors 11 PS Micom Version 12 CPU clock 3 24 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 639KB MEMORY 1 FLOPPY DISK DRIVE S 1 ASYNC ADAPTER 1 HARD DISK DRIVE S 1 PRINTER AD...

Page 103: ...ay a Display 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 Infrared Port c Parallel Port d Sound System 6 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 j Boot Priority ...

Page 104: ...pt 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 MEMORY BIOS version x xx SYSTEM SETUP DISPLAY Display Adaptor VGA compatible LCD Display Mode Color VGA Segment Address E000H LCD Display Colors 16M Colors Power On Display Internal External Text Mode Stretch Enabled Total 8192 KB Base 640 KB Extended 7360 KB Shadow...

Page 105: ...tory preset configuration press Home 2 To 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 Write Policy SETUP Options The SETUP screen is divided into functionally related groups This section describes each group and its options 1 Memory This option ...

Page 106: ...ode The LCD displays text in 80 characters by 25 lines and graphics in 640 by 480 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 fo...

Page 107: ...th 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 one is connected other wise it selects the internal LCD Simultaneous Selects both the internal LCD and the external CRT for simultaneous display NOTE When starting the computer in Resume mode the last configu ra...

Page 108: ...re or UNIX When this mode is selected up to 504MB is logically available even though the disk s capacity is larger than 504MB To see the capacity of the hard disk use the CHKDSK command See your DOS documentation for details on using CHKDSK NOTE Formats for Enhanced IDE and Standard IDE are different If you change the setting you will have to reformat the hard disk for the appropri ate setting 4 P...

Page 109: ...F8h COM3 4 3F8h COM4 3 2F8h Not used Disables port NOTE Do not assign the same interrupt request level and I O address to serial port and PCMCIA card b Infrared Port This option allows you to set the COM level for the infrared port The infrared port interrupt request level IRQ and I O port base address for each COM level is shown below COM level Interrupt level I O address COM1 4 3F8h COM2 3 2F8h ...

Page 110: ...setting are Output default and Bi Directional Option Mode Output For most printers the port should be set to Output With some other parallel devices the setting should be Bi Directional d Sound system This item appears only when an optional sound card is installed It allows you to enable or disable the sound card ports Address IRQ DMA Enables port Default Disabled Disables port When Address IRQ DM...

Page 111: ...rect 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 AutoR...

Page 112: ...led by the processor c Battery Save Mode This option is used to select Full Power 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 400CS 30 Min 400CDT HDD Auto Off Disabled System Auto Off Disabled LCD Brightness Bright Cooling method Performance Low Power T...

Page 113: ...ich is one of the Battery Save Mode options Processing Speed This feature changes the CPU processing speed High CPU operates at 75 MHz Default Low CPU 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 ...

Page 114: ... 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 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 3 5 10 15 20 o...

Page 115: ...ed Disables the feature f System Beep Use this feature to enable or disable the system beep Enabled Enables the feature Default Disabled Disables the feature g Panel Power On Off This option allows you to automatically turn your computer on or off by opening or closing the display panel If this feature is enabled when the computer is in Resume mode the system is automatically powered off when the ...

Page 116: ...ck Disabled Disables the alarm NOTE Do not remove the AC adapter 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 i 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 Ke...

Page 117: ... Del j Pointing Devices This option enables or disables the AccuPoint Auto selected The AccuPoint is disabled when a PS 2 mouse or serial mouse is connected otherwise the AccuPoint is enabled Default Simultaneous If a PS 2 mouse or serial mouse is connected to an optional port replicator both the AccuPoint and the external mouse are enabled k Boot Priority Use this option to select the disk drive ...

Page 118: ...ved 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 Memory Card Optional PCMCIA Card FDD CD ROM Drive Hard Disk Drive Keyboard Top Cover Display FL Inverter Board Backup Battery Mask LCD Module So...

Page 119: ... accessories such as necklaces bracelets or rings because 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 specificat...

Page 120: ...d humidity 4 Make sure the FRU you are replacing is causing the abnormal operation by per forming the necessary diagnostics 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...

Page 121: ...re 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 causing the computer to operate abnormally you will need to reassemble the computer While assembling the computer remember the following general points Take your...

Page 122: ...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 undertight...

Page 123: ... Push and hold the battery cover lock to release the battery cover while you push the cover to the left until it stops about one centimeter or half an inch Figure 4 1 Unlatching the palm rest 4 Lift off the cover 5 Press the battery latch out slightly so you can lift out the battery pack Figure 4 2 Removing the battery pack NOTE For environmental reasons do not throw away a spent battery pack Plea...

Page 124: ...d used handled or disposed of Dispose of the battery as required by local ordinances or regulations Use only batteries recommended by Toshiba as replace ments 1 Turn the computer s power off Disconnect the AC power cord and all external cables connected to the computer 2 Press the battery latch out slightly and carefully insert the new or recharged bat tery pack 3 Replace the battery cover and pus...

Page 125: ...efer to figure 4 4 1 Turn the computer s power 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 PCMCIA card ...

Page 126: ...A slot Insert the PCMCIA card through these flaps as shown in Figure 4 5 Figure 4 5 Opening the PCMCIA slot cover 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 is for the top connector and the bottom button is for the bo...

Page 127: ...move the battery pack and Optional PCMCIA 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 Re...

Page 128: ... 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 Fold down the plastic tab a...

Page 129: ...s connected to the computer 2 Remove the battery pack optional PCMCIA card and optional memory module as described in sections 4 2 4 3 and 4 4 3 Turn the computer upside down 4 Slide the release lever lock to unlock the release lever 5 Pull up on the lever to unsnap it Then raise it gently until the diskette drive pops out slightly Don t force the lever back too far Figure 4 9 Removing the diskett...

Page 130: ...e upper plastic cover 8 Use a thin object to release two latches on either side of the diskette drive in the numbered order Figure 4 10 Removing the upper plastic cover 9 Lift off the plate and remove the lower plastic cover Figure 4 11 Removing the plate and lower plastic cover ...

Page 131: ...xible cable 3 Seat the diskette drive in the lower plastic cover and set the plate in place 4 Set the upper plastic cover in place and be careful that the flexible cable is not pinched Secure two M2x6 screws and four M2x3 screws 5 Insert the diskette drive in the computer and press gently so the drive is flush with the computer 6 Hold the diskette drive flush to the computer and push the lever dow...

Page 132: ...nnected to the computer 2 Remove the battery pack optional PCMCIA card and optional memory module as described in sections 4 2 4 3 and 4 4 3 Turn the computer upside down 4 Slide the release lever lock to unlock the release lever 5 Pull up on the lever to unsnap it Then raise it gently until the CD ROM drive pops out slightly Don t force the lever back too far Figure 4 13 Removing the CD ROM drive...

Page 133: ...g the frame to the CD ROM drive 8 Use a thin object to release two latches on either side in the numbered order Figure 4 14 Removing the frame 9 Slide the drive partially out of the case 10 Remove the cover and disconnect the cable connector Figure 4 15 Removing the CD ROM ...

Page 134: ...d two M2 5x6 screws 4 Insert the drive in the computer and press firmly until it is flush with the computer The release lever will close partially 5 Hold the CD ROM drive flush to the computer and push the lever down until it snaps into place 6 Lock the drive release lever lock 7 Install the optional memory module optional PCMCIA card and battery pack as described in sections 4 2 4 3 and 4 4 ...

Page 135: ...rd and all external cables connected to the computer 2 Remove the battery pack optional PCMCIA card optional memory module and diskette drive or CD ROM drive as described in sections 4 2 4 3 4 4 and 4 5 or 4 6 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 16 Removing the frame ...

Page 136: ...d disk drive follow the steps below and refer to figures 4 16 and 4 17 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 diskette drive or CD ROM drive optional memory module optional PCMCIA card and battery pack as descr...

Page 137: ...e computer s power off Disconnect the AC power cord and all external cables connected to the computer 2 Remove the battery pack optional PCMCIA card optional memory module diskette drive 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 Figure 4 18 Removing the keyboard base ...

Page 138: ...o install the keyboard follow the steps below and refer to figures 4 18 and 4 19 1 Seat the keyboard 2 Connect the keyboard cable to the connector PJ13 on the system board 3 Seat the keyboard base and secure the 14 latches 4 Install the HDD diskette drive or CD ROM drive optional memory module optional PCMCIA card and battery pack as described in sections 4 7 back through 4 2 ...

Page 139: ...C power cord and all external cables connected to the computer 2 Remove the battery pack optional PCMCIA card optional memory module diskette drive or CD ROM drive HDD and keyboard as described in sections 4 2 through 4 8 3 Disconnect the sub battery from PJ503 and remove the battery Figure 4 20 Removing the sub battery 4 Remove two M2 5x6 screws securing the metal cover and remove the cover Figur...

Page 140: ...curing the cables 7 Disconnect the VGA board connector from the system board connector PJ16 Figure 4 22 Removing the VGA board 8 Rotate the board out and disconnect the VGA cables from PJ302 the 400CS uses this connector only and PJ303 on the VGA board Figure 4 23 Disconnecting the cables from the VGA board ...

Page 141: ...he board into place and press to connect the VGA board connector to PJ16 on the system board Secure the board with three M2 5x4 screws Be sure to replace the ground cable 3 Seat the metal cover and secure it with two M2 5x6 screws 4 Seat the sub battery and connect it to PJ503 on the system board 5 Install the keyboard HDD diskette drive or CD ROM drive optional memory module optional PCMCIA card ...

Page 142: ...bles connected to the computer 2 Remove the battery pack optional PCMCIA card optional memory module diskette drive or CD ROM drive HDD keyboard and 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 Figure 4 24 Removing the top cover screws 4 Tur...

Page 143: ...ies recommended by Toshiba Installation of the wrong battery can cause the battery to explode or otherwise cause damage Figure 4 25 Removing the RTC battery 6 Disconnect the panel sensor cable from PJ10 and the LED panel cable from PJ14 on the system board 7 Disconnect the microphone cable from PJ3 on the sound card be careful not to confuse with PJ3 on the system board Figure 4 26 Removing the to...

Page 144: ... one M2 5x8 silver screw on the sub battery base 3 Connect the microphone cable to PJ3 on the sound card be careful not to confuse with PJ3 on the system board 4 Connect the panel sensor cable to PJ10 and the LED panel cable to PJ14 on the system board 5 Connect the Real Time Clock battery to PJ3 on the system board be careful not to confuse with PJ3 on the sound card 6 Turn the computer upside do...

Page 145: ...ttery and VGA board and top cover and display assembly as described in sections 4 2 through 4 10 3 Disconnect the speaker cable from PJ6 on the sound card 4 Remove one M2 5x6 screw and one M2 5x4 screw securing the sound card cover The cover is attached to the sound card cable with two sided tape Peel it back and lift off the cover 5 Remove three M2 5x6 screws securing the sound card Note the PR s...

Page 146: ...n contact cable to PJ10 on the sound card figure 4 28 3 Connect the power cable to PJ18 on the system board 4 Connect the sound card cable to PJ7 5 Seat the sound card and secure it with three M2 5x6 screws Be sure to replace the PR spring 6 Lay the sound card cover in place and secure it with one M2 5x6 screw and one M2 5x4 screw 7 Connect the speaker cable to PJ6 on the sound card 8 Install the ...

Page 147: ... described in sections 4 2 through 4 11 3 Remove one M2 5x6 screw securing the power supply cover and lift off the cover Note the placement of the battery connector holder It will no longer be connected and may fall out as you handle the unit 4 Remove one M2 5x6 screw securing the plastic sound board base and lift off the base figure 4 29 5 Disconnect the AC power cable from PJ502 on the system bo...

Page 148: ...power cable to PJ502 on the system board 5 Seat the plastic sound board base and secure it with one M2 5x6 screw Be sure the battery connector holder is in place 6 Lay the power supply cover in place and secure it with one M2 5x6 screw 7 Install the sound card and AccuPoint button contacts top cover and display assembly sub battery and VGA assembly keyboard HDD diskette drive or CD ROM drive optio...

Page 149: ... PCMCIA card optional memory module diskette drive or CD ROM drive HDD keyboard sub battery and VGA board top cover and display assembly sound card and AccuPoint button contacts and AC PS unit as described in sections 4 2 through 4 12 3 Disconnect the infrared board cable from PJ101 4 Remove one M2 5x4 screw securing the infrared board 5 Slide the infrared board out slightly to clear the notch on ...

Page 150: ...h on the computer 2 Secure the board with one M2 5x4 screw 3 Connect the infrared board cable to PJ101 4 Install the AC PS unit sound card and AccuPoint button contacts top cover and display assembly sub battery and VGA board keyboard HDD diskette drive or CD ROM drive optional memory module optional PCMCIA card and battery pack as described in sections 4 12 back through 4 2 ...

Page 151: ...connected to the computer 2 Remove the battery pack optional PCMCIA card optional memory module diskette drive or CD ROM drive HDD keyboard sub battery and VGA board top cover and display assembly sound card and AccuPoint button contacts AC PS unit and infrared board as described in sections 4 2 through 4 13 3 Remove one M2 5x6 screw figure 4 31 securing the speaker and brace Figure 4 31 Removing ...

Page 152: ... the speaker in the speaker brace and secure it with one M2 5x4 screw 2 Secure the speaker and speaker brace to the computer with one M2 5x6 screw figure 4 31 3 Install the infrared board AC PS unit sound card and AccuPoint button contact top cover and display assembly keyboard HDD diskette drive or CD ROM drive optional memory module optional PCMCIA card and battery pack as described in sections ...

Page 153: ...computer 2 Remove the battery pack optional PCMCIA card optional memory module diskette drive or CD ROM drive HDD keyboard sub battery and VGA board top cover and display assembly sound card and AccuPoint button contacts AC PS unit infrared board and speaker as described in sections 4 2 through 4 14 3 Remove 8 M2 5x6 screws and one M2 5x8 silver screw 4 Lift out the back guide assembly the push sp...

Page 154: ...able to PJ11 figure 4 34 3 Seat the back guide assembly the push spring assembly and the system board Secure the system board with 8 M2 5x6 screws and one M2 5x8 silver screw figure 4 33 4 Secure the speaker and its base with one M2 5x6 screw figure 4 33 5 Install the speaker infrared board AC PS unit sound card and AccuPoint button contact top cover and display assembly keyboard HDD diskette driv...

Page 155: ...y assembly 3 Remove two rubber seals from the display hinges to expose two screws securing the display mask 4 Remove two M2 5x6 screws 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 unlatching the mask along the sides four latches on each side at the bot...

Page 156: ...he display supports 2 Continue along the bottom of the display three latches along the sides four latches and across the top six latches 3 Secure the display mask with two M2 5x6 screws at the display hinges 4 Attach the two rubber seals at each display hinge to cover the screws 5 Install the optional PCMCIA card optional memory card and battery pack as described in sections 4 4 4 3 and 4 2 ...

Page 157: ...e battery pack optional PCMCIA card optional memory module and display mask as described in 4 2 4 3 4 4 and 4 16 3 Remove two M2 5x6 screws securing the FL inverter board 4 Remove one M2 5x6 screw securing the contrast control board 5 Disconnect the contrast control board cable and lift the board out of the unit 6 Disconnect the FL inverter cable from CN1 and the FL cable from CN2 on the FL invert...

Page 158: ...ard 2 Connect the FL inverter cable to CN1 and the FL cable to CN2 on the FL inverter board 3 Connect the contrast control board cable 4 Secure the contrast control board with one M2 5x6 screw 5 Secure the FL inverter board with two M2 5x6 screws 6 Install the display mask optional memory card optional PCMCIA card and battery pack as described in 4 16 4 4 4 3 and 4 2 ...

Page 159: ...ng the FL inverter board 4 Disconnect the FL inverter cables from CN1 and the FL cable from CN2 on the FL inverter board 5 Lift out the board Figure 4 37 Removing the 400CDT FL inverter board Installing the 400 CDT FL Inverter Board To install the 400CDT FL inverter board follow the steps below and refer to figure 4 37 1 Seat the FL inverter board 2 Connect the FL inverter cables to CN1 and the FL...

Page 160: ...pack optional memory module optional PCMCIA card display mask and FL inverter board as described in sections 4 2 4 3 4 4 4 16 and 4 17 3 Remove four M2 5x6 screws securing the LCD module to the LCD cover The screw at the lower left also secures the ground cable 4 Carefully rotate the LCD module from right to left out of the display cover then disconnect the display cable from CN11 on the LCD modul...

Page 161: ...38 1 Connect the display cable to CN11 on the LCD module and carefully rotate the LCD module into the LCD cover 2 Secure four M2 5x6 screws and the ground cable on the LCD module 3 Install the FL inverter board display mask optional memory module optional PCMCIA card and battery pack as described in sections 4 17 4 16 4 4 4 3 and 4 2 ...

Page 162: ... memory module optional PCMCIA 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 Carefully unbend 11 latches securing the LCD module to its frame 4 Turn the LCD module over and remove four screws Note that the two screws on the FL inverter cable side of the module are smaller Figure 4 39 Unbending the color LCD module latches and removing ...

Page 163: ...under the P chassis and release the latch securing it to the B L holder Gently hold down the LCD module and lift one side of the B L holder As you lift the B L holder the P chassis securing the holder will rotate out Be sure to note the placement of the metal guides 9 When the B L holder is free lift it out Be careful not to lift the B L holder too high or apply pressure to the P chassis Figure 4 ...

Page 164: ...r and P chassis into place and gently press the P chassis to secure the latch Be sure the metal guides are in place 5 Rotate the SEG board back into place 6 Connect the FL cable Press the connector with the flat of your finger to secure the connection To avoid damaging the connector push it with the flat of your fingertip do not push it with your fingernail or the end of your fingertip 7 Secure th...

Page 165: ... Disconnect the AC power cord and all external cables connected to the computer 2 Remove the battery pack optional memory module optional PCMCIA card display mask FL inverter board and as described in sections 4 2 4 3 4 4 4 16 and 4 18 3 Remove one M2x2 screw and two M2x3 screws securing the FL metal cover 4 Lift off the cover Figure 4 43 Removing the 400CDT FL cover ...

Page 166: ...steps below and refer to figures 4 43 and 4 44 1 Route the FL cable into its groove and seat the FL 2 Replace the metal cover and secure it with one M2x2 and two M2x3 screws 3 Install the LCD module FL inverter board display mask optional memory mod ule optional PCMCIA card and battery pack as described in sections 4 19 4 18 4 16 4 4 4 3 and 4 2 ...

Page 167: ... in sections 4 2 4 3 4 4 4 8 4 10 and 4 16 through 4 21 3 Lift the microphone out of the unit Figure 4 45 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 45 1 Carefully route the microphone cable through the upper cover 2 Seat the microphone 3 Install the FL LCD mo...

Page 168: ...nstalling 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 polariz...

Page 169: ...ecommend 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...

Page 170: ... Be 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 171: ...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 ...

Page 172: ...400 Series B 1 Appendix B Board Layout B 1 System Board Front View Figure B 1 Board layout front ...

Page 173: ...B 2 400 Series B 2 System Board Back View Figure B 2 Board layout back ...

Page 174: ... 2 System board ICs and connectors back Mark Number Name A IC8 System Clock B IC11 RTC Controller C IC14 BIOS ROM D IC20 Keyboard Controller E IC24 IPS Controller F PJ5 FDD CD ROM I F Connector G PJ6 Ext FDD Connector H PJ7 Sound HDD Connector I PJ8 ASYNC I F Connector J PJ9 P REP Connector K PJ10 Panel Sensor Connector L PJ11 Fan Connector M PJ12 Ext Keyboard Connector N PJ13 Keyboard Connector O...

Page 175: ... 100 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...

Page 176: ...100 I 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 ...

Page 177: ... GND 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 178: ...0 O 21 CRTEN 000 O 22 CVSYNC 100 I 23 CHSYNC 100 I 24 GND 25 ABLUE 100 O 26 AGREEN 100 O 27 ARED 100 O 28 GND 29 GND 30 GND C 5 PJ5 FDD CD ROM Connector 80 pin Table C 5 FDD CD ROM connector pin assignments 80 pin Pin No Signal name I O Pin No Signal Name I O 01 GND 02 RESET 000 O 03 IFSSEL 000 O 04 GND 05 IFTRK0 000 I 06 SD08 100 I O 07 SD07 100 I O 08 GND 09 GND 10 SD09 100 I O 11 SD06 100 I O 1...

Page 179: ...00 O 43 IOCRDY 100 I 44 GND 45 IFRDAT 000 I 46 DACK7 000 O 47 IRQCD 100 I 48 GND 49 GND 50 IOCS16 000 O 51 SA01 100 O 52 GND 53 IFWDAT 000 O 54 SA00 100 O 55 IFRADY 000 I 56 GND 57 GND 58 SA02 100 O 59 CDRCS0 000 O 60 GND 61 IFDASL 000 O 62 CDRCS1 000 O 63 IFINDX 000 I 64 VCC 65 VCC 66 VCC 67 VCC 68 VCC 69 DSKCHG 000 I 70 CDOUTL I 71 MBSTS0 100 I 72 AGNDL 73 CDRLED 000 I 74 CDOUTR I 75 MBSTS1 100 ...

Page 180: ...0 I 025 GND 026 IFSSEL 000 O C 7 PJ7 Sound HDD Connector 90 pin Table C 7 Sound HDD connector pin assignments 90 pin Pin No Signal name I O Pin No Signal Name I O 01 IPSSWR 000 I 02 DACK3 000 O 03 IPSSWL 000 I 04 IRQ14 100 I 05 DRQ3 100 I 06 IRQ10 100 I 07 DACK0 000 O 08 IRQ9 100 I 09 DRQ0 100 I 10 IRQ7 100 I 11 DACK1 000 O 12 IRQ5 100 I 13 DRQ1 100 I 14 CSPTON 000 O 15 ATBEEP 100 O 16 FIORD 000 O...

Page 181: ...I O 59 SPKVOL 100 O 60 SD12 100 I O 61 BLAWR 000 O 62 SD11 100 I O 63 GND 64 SD10 100 I O 65 RESET 000 O 66 SD09 100 I O 67 MSO 100 I 68 SD08 100 I O 69 HVPC O 70 GND 71 LOUTLM I 72 JOYR 000 O 73 LINRM O 74 JOYW 000 I 75 GND 76 MSI 100 O 77 LINLM O 78 LOUTRM I 79 GND 80 LOUTRP I 81 AGNDR 82 LOUTLP I 83 CDOUTR O 84 LINRP O 85 GND 86 LINLP O 87 AGNDL 88 NC 89 CDOUTL O 90 NC C 8 PJ8 Asynchronous Conn...

Page 182: ...C O 24 VCC 25 IFSTEP 000 O 26 IFAMO2 O 27 IFWDAT 000 O 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...

Page 183: ... 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 IFDIRC 000 O 115 IFWEN 000 O 116 IFRADY 000 I 117 IFSSEL 000 O 118 IFINDX 000 I 119 IFDAS2 O 120 IFLOWD 000 O 121 GND 122 PRDT2 000 I 123 MOUSCK 100 O 124 MOUSDT 100 I 125 MSO 100 O 126 MSI 100 I 127 GND 128 LOUT...

Page 184: ...69 JOYR 000 I 170 JOYW 000 O 171 GND 172 HVPC 173 LOUTLM O 174 LOURLP O 175 LINLM I 176 LINLP I C 10 PJ10 Panel Sensor Connector 2 pin Table C 10 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 11 PJ11 Fan Connector 2 pin Table C 11 Fan connector pin assignments 2 pin Pin No Signal name I O Pin No Signal Name I O 01 VCC 02 GND C 12 PJ...

Page 185: ...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 14 PJ14 LED Connector 12 pin Table C 14 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 186: ...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 N C 036 N C 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 N C 048 N C 049 CADA06 100 O 050 CADB06 100 O 051 CADA25 100 O 052 CA...

Page 187: ... 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 N C 104 N C 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 ...

Page 188: ...PDNVGA 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 10...

Page 189: ... 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 100 I 117 B3V 118 ABLUE 100 I 119 GND 120 GND C 17 PJ17 Ir DA board Connector 5 pin Table C 17 Ir ...

Page 190: ... 12 _ 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 3...

Page 191: ...33 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...

Page 192: ...19 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 tab...

Page 193: ...he 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 ...

Page 194: ... F0 6C 09 8 8 48 C8 75 F0 75 10 9 9 49 C9 7D F0 7D 11 0 37 B7 7C F0 7C 23 U 4 4B CB 6B F0 6B 24 I 5 4C 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 ...

Page 195: ... Series Table D 7 Scan codes with Alt key Key Code set 1 Code set 2 top Shift Make Make Pause Common E1 ID 45 E1 SD C5 E1 14 77 E1 F0 14 F0 77 Ctrl E0 46 E0 C6 E0 7E E0 F0 7E This key generates only make codes ...

Page 196: ...400 Series E 1 Appendix E Key Layout E 1 United States US Keyboard Figure E 1 US keyboard E 2 United Kingdom UK Keyboard Figure E 2 UK keyboard ...

Page 197: ...E 2 400 Series E 3 German GR Keyboard Figure E 3 GR keyboard E 4 French FR Keyboard Figure E 4 FR keyboard ...

Page 198: ...400 Series E 3 E 5 Spanish SP Keyboard Figure E 5 SP keyboard E 6 Italian IT Keyboard Figure E 6 IT keyboard ...

Page 199: ...E 4 400 Series E 7 Scandinavian SC Keyboard Figure E 7 SC keyboard E 8 Swiss German SL Keyboard Figure E 8 SL keyboard ...

Page 200: ...PD1 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 201: ... 400 Series 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 202: ... Set the system to boot mode 2 Turn off the power to the 400 series 3 Remove the external cable and PCMCIA card 4 Turn on the power 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 BIOS rewrite disk into the FDD Press Enter to start the BIOS rewrite 6 When the BIOS rewrite is finished eject the BIOS rewrite d...

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