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FDD A

Configures the port for output and input with an external
floppy disk drive and assigns the external drive as A. By
default the internal FDD becomes drive B.

FDD B

Configures the port for output and input with an external
floppy disk drive and assigns the external drive as B. By
default the internal FDD becomes drive A.

PRINTER PORT TYPE
When the PRT/FDD port on the rear panel of the T6400 is set for output to the Printer as
opposed to the external FDD, this option lets you change the printer port from output only
to receive input as well as output. Do not change this setting if you’re connecting the
T6400 to a printer. You would change this option only if you’re connecting the computer to
a device that requires a bi-directional parallel signal.

Output

Activates the uni-directional parallel signal (output only).
This is the default setting.

Bi-Directional

Activates the bi-directional parallel signal (input and output).

OTHERS

PROCESSING SPEED
Use this option to select the CPU speed. Some optional boards and application software are
dependent on the CPU speed. If your optional card or application software doesn’t run with
High speed, select Normal or Low so that they may run. Some memory cards in the expan-
sion slots may require Normal speed.

High

The CPU runs with the maximum CPU speed at which the
T6400 can operate. This speed may not be fully compatible
with the IBM PC/AT bus.

Normal

The CPU runs with the maximum CPU speed at which the
T6400 is fully compatible with the IBM PC/AT bus.

Low

The CPU runs at half the CPU speed of the High setting.

CACHE
This option enables and disables the CPU cache. You may have to select Disable when you
run some speed-dependent application software.

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Содержание T6400

Страница 1: ...1 1 Chapter 1 Hardware Overview ...

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Страница 3: ...em unit 1 7 Figure 1 2 Block diagram 1 8 Figure 1 3 3 5 inch FDD 1 10 Figure 1 4 3 5 inch HDD 1 11 Figure 1 5 Keyboard 1 12 Figure 1 6 Gas plasma display 1 13 Figure 1 7 Color LCD 1 14 Figure 1 8 Power supply unit 1 15 Tables Table 1 1 T6400 models 1 5 Table 1 2 3 5 inch FDD specifications 1 10 Table 1 3 3 5 inch HDD specifications 1 11 Table 1 4 Gas plasma display specifications 1 13 Table 1 5 Co...

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Страница 5: ...at 25 MHz The T6400DX model uses an 80486DX 33 microprocessor that operates at 33 MHz Math co processor The T6400DX model has a Numeric Data Processor NDP inside the CPU The T6400 comes with a built in socket for an 80486DX 33 which incorpo rates a Numeric Data Processing Unit NDP Cache memory The T6400 has an 8 KB cache memory which is stored in the microproces sor Disk storage The T6400 has an i...

Страница 6: ... AC plug is available Battery The one Real Time Clock RTC battery keeps the date and time in addi tion to the system configuration parameters even if the system is powered off Expansion slot The T6400 expansion slot is used to enhance the T6400 capabilities with various ISA adapter cards which fit in one 8 bit or 16 bit full size industry standard slot Parallel port A Centronics compatible paralle...

Страница 7: ...r port allows you to connect unique optional Toshiba devices Memory slots The T6400 has two expansion memory slots for installing the optional 2 4 and or 8 MByte memory cards The T6400 Personal Computer is shown in Figure 1 1 Figure 1 1 T6400 system unit ...

Страница 8: ...1 8 1 2 System Unit Block Diagram Figure 1 2 is a block diagram of the T6400 system unit Figure 1 2 Block diagram ...

Страница 9: ...1 MB This ROM contains the Initial Reliability Test IRT Basic Input Output System BIOS and video BIOS Video RAM 256 KB Optional memory cards expand memory to a maximum of 20 MB System controller gate array SYS CNT GA 240 pin VGA display controller PVGA1F WD90C23 132 pin Color gray scale controller gate array CGSC GA 60 pin Digital analog converter DAC 80 pin The following Oscillators OSC X1 33 34 ...

Страница 10: ... and its specifications are described in Table 1 2 Figure 1 3 3 5 inch FDD Item 2 Mbyte mode 1 Mbyte mode Storage capacity Kbyte Unformatted Formatted 2 000 1 475 1 000 737 Number of heads 2 2 Number of cylinders 80 80 Access time ms Track to track Average Head settling time 3 94 15 3 94 15 Recording track density tpi 135 135 Data transfer rate Kbps 500 250 Rotation speed rpm 300 300 Recording met...

Страница 11: ...Specifications for the HDD are described in Table 1 3 Figure 1 4 3 5 inch HDD Item 200MB CP 30204 120MB CP 30104 Storage capacity Formatted MB 212 6 121 5 Number of disks 2 2 Data heads 4 4 Data surfaces 4 4 Tracks per surface 2 119 1 522 Sectors per track 49 39 1 Bytes per sector 512 512 Access time ms Track to track Average Maximum 3 12 30 8 19 40 Rotation speed rpm 4 498 3 400 Data transfer rat...

Страница 12: ... 101 key USA or 102 key European keyboard is mounted on the T6400 s system unit The keyboard is connected to the keyboard controller in the keyboard unit The keyboard is shown in Figure 1 5 See Appendix E for optional keyboard configurations Figure 1 5 Keyboard ...

Страница 13: ...splay has 16 levels of gray scale and the display quality can be adjusted with the contrast control The gas plasma display is shown in Figure 1 6 and its specifications are described in Table 1 4 Figure 1 6 Gas plasma display Item Specifications Number of dots dots 640 x 480 Dot pitch mm 0 33 W x 0 33 H Display area mm 158 4 W x 211 2 H Color Neon Orange Contrast ratio 100 1 Gray scale 16 levels P...

Страница 14: ... synchronizing signals 9 bit data signals and shift clock signals for data transmission All signals are TTL level compatible The LCD specifications are described in Table 1 5 The LCD has 512 color capability The high frequency current is supplied by the FL inverter board to illuminate the FLs The color LCD is shown in Figure 1 7 Figure 1 7 Color LCD Item Specifications Number of dots dots 640 x 48...

Страница 15: ...rd disk drive HDD External keyboard Liquid crystal display LCD or plasma display PDP Option boards Cooling fans The power supply unit includes an input line filter line fuse cooling fans power conversion circuitry and connectors Input ratings are 115 VAC 1 5 A or 230 VAC 1 0 A The power supply unit is shown in Figure 1 8 and the output ratings are specified in Table 1 6 Figure 1 8 Power supply uni...

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Страница 17: ...2 1 Chapter 2 TroubleshootingProcedures ...

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Страница 19: ...shooting Procedures 2 25 Procedure 1 Message Check 2 26 Procedure 2 Partition Check 2 27 Procedure 3 Format Check 2 28 Procedure 4 Diagnostic Test Program Execution and Replacement Check 2 29 2 7 Keyboard Troubleshooting Procedures 2 30 Procedure 1 Diagnostic Test Program Execution Check 2 31 Procedure 2 Connector and Replacement Check 2 32 2 8 Display Troubleshooting Procedures 2 33 Procedure 1 B...

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Страница 21: ...ng the T6400 troubleshooting procedures 1 T6400 Diagnostic Disk 2 Phillips head screwdriver 2 mm 3 Toshiba MS DOS system disk 4 2DD or 2HD formatted work disk for the floppy disk drive troubleshooting 5 Cleaning disk kit for the floppy disk drive troubleshooting 6 Printer port LED 7 RS 232 C wraparound connector 8 Printer wraparound connector 9 Expansion slot wraparound board F32BUS 10 Multimeter ...

Страница 22: ... any diskette in the FDD NOTE If you forget the password and cannot start up the computer connect the printer port wraparound board F31PRT then turn the POWER switch on The computer will skip the password function Figure 2 1 Troubleshooting flowchart Is the MEMORY TEST XXXXKB messagedisplayed Perform Power Supply Board TroubleshootingProceduresin Section 2 3 Perform System Board TroubleshootingPro...

Страница 23: ... If an error is detected on the keyboard test perform the keyboard troubleshooting proce dures in Section 2 7 3 If an error is detected on the floppy disk test perform the floppy disk drive troubleshooting procedures in Section 2 5 4 If an error is detected on the hard disk test perform the hard disk drive troubleshooting procedures in Section 2 6 Connect wraparound connectors Execute the Running ...

Страница 24: ...g the power off to allow the electricity to discharge The T6400 s power supply unit generates a variety of voltages for each component To determine if the power supply unit is functioning properly perform the following checks as required Start with Procedure 1 and continue with the other procedures as instructed Procedure 1 AC Cord Check Procedure 2 Connector Check Procedure 3 Output Voltage Check...

Страница 25: ...ply unit from a wall outlet Check 1 Turn off the power then disconnect the AC cord from the T6400 Use a multimeter to check the output voltage from the wall outlet and on the AC cord If the output voltages are different replace the AC cord If the output voltages are the same perform Procedure 2 ...

Страница 26: ...eps described in Chapter 4 to check the power supply cables and their connections to the system board Check 1 Remove the system board cover Make sure the power supply cables are connected to the system board Power supply unit System board If these cables are disconnected connect them to the system board If these cables are damaged replace the power supply unit If these cables are OK perform Proced...

Страница 27: ... board cover connect the power supply cables to the system unit connect the AC Cord and turn on the power Use a multimeter to check the following voltages Table 2 1 Output voltages If the output voltages are not correct replace the power supply unit Connector Pin number Voltage V PJ1 1 3 or 4 5 5 2 3 or 4 5 5 PJ2 1 GND 5 5 2 GND 12 5 3 GND 12 5 4 GND 24 10 5 GND 12 10 6 GND 12 8 4 ...

Страница 28: ...em board is defective or not functioning properly perform the following procedures beginning with Procedure 1 and continue with the other Procedures as required Procedure 1 Message Check Procedure 2 Printer Port LED Check Procedure 3 Diagnostic Test Program Execution Check ...

Страница 29: ...D A is not installed Check 2 If one of the following error messages is displayed on the screen press any key as the message instructs These errors occur when the system configuration stored in the RTC memory CMOS type memory is not the same as the actual one or the data is lost If you press any key as the message instructs the system configuration in the RTC memory configuration is set to the defa...

Страница 30: ... the HDD Troubleshooting Procedures in Section 2 6 If error message v is displayed go to the FDD Troubleshooting Procedures in Sec tion 2 5 If none of these error messages appears go to Procedure 2 a TIMER CH 2 OUT ERROR b PIT ERROR c MEMORY REFRESH ERROR d TIMER CH 2 OUT ERROR e FIRST 64KB MEMORY ERROR f CRTC ERROR g VRAM ERROR h KBC ERROR i SYSTEM MEMORY ERROR j SYSTEM MEMORY PARITY ERROR k EXTE...

Страница 31: ... port LED into the T6400 s PRT FDD connector 3 Turn on the T6400 s power 4 Read the final LED status from left to right as you are facing the back of the com puter Convert the status from binary to hexadecimal notation NOTE The final status on the LED indicates the last test successfully completed before an error was detected The error message displayed on the screen will be for the test status in...

Страница 32: ...OS Bad battery Error in CMOS Bad check sum Error in CMOS Bad configuration Error in CMOS Bad memory size Error in CMOS Bad HDD type Error in CMOS Bad time function Check system Then press F1 key 16H RTC initialization 18H PIC initialization 1FH Display initialization CRTC ERROR VRAM ERROR READ DATA XXXXXXXXH WRITE DATA XXXXXXXXH 22H KBC test KBC ERROR 25H System memory test SYSTEM MEMORY ERROR ADD...

Страница 33: ...ATA XXXXH 42H DMAC initialization 4AH PIC test PIC 1 ERROR READ DATA XXH WRITE DATA XXH PIC 2 ERROR READ DATA XXH WRITE DATA XXH 54H Keyboard test KEYBOARD ERROR 55H KBC initialization KBC ERROR 5AH Mouse initialization 60H HDD initialization HDC ERROR HDD 0 ERROR HDD 1 ERROR 65H FDD initialization NO FDD ERROR FDD ERROR 70H Printer test 80H RS 232 C 90H Timer initialization TIMER INTERRUPT ERROR ...

Страница 34: ...5h 70h 80h 90h A0h A6h Check 2 If test code 4A is displayed go to the Keyboard Troubleshooting Procedures in Sec tion 2 7 Check 3 If test code 55 is displayed make sure the mouse cable is firmly connected to the system board If it is replace the system board with a new one Check 4 If test code 5A is displayed go to the HDD Troubleshooting Procedures in Section 2 6 ...

Страница 35: ...k Execute the following tests from the Diagnostic Test Menu Refer to Chapter 3 Tests and Diag nostics for detailed instructions on how to perform these tests 1 System test 2 Memory test 3 Printer test 4 ASYNC test 5 Real timer test 6 NDP test if the NDP is installed If an error is detected during these tests replace the system board with a new one ...

Страница 36: ...e T6400 s internal 3 5 floppy disk drive is function ing properly Perform the procedures below starting with Procedure 1 and continuing with the other procedures as instructed Procedure 1 FDD Head Cleaning Check Procedure 2 External 5 1 4 FDD Check Procedure 3 Diagnostic Test Program Execution Check ...

Страница 37: ... one of the options available in the Diagnostic Program Detailed operation is described in Chapter 3 Tests and Diagnostics After loading Toshiba MS DOS 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 Procedure 3 ...

Страница 38: ...al 5 1 4 FDD to the PRT FDD port and make sure it functions properly If it does perform Check 2 If it doesn t perform Check 4 NOTE To use the external 5 1 4 FDD set the external FDD PRT option in the SETUP program to FDD A or FDD B Check 2 Disassemble the system unit and make sure the internal FDD cable is properly con nected to PJ4 on the system board If it is perform Check 3 Check 3 Replace the ...

Страница 39: ...is formatted correctly and that the write protect tab is disabled If any other errors occur while executing the FDD diagnostic test go to Check 1 Table 2 3 Floppy disk drive error codes and status Check 1 If the following message is displayed disable the write protect tab on the floppy disk If any other message appears go to Procedure 4 Code Status 01h Bad command 02h Address mark no found 03h Wri...

Страница 40: ...ed in Chapter 4 Replacement Procedures and perform the following checks Check 1 Make sure the FDD cable is firmly connected to the system board FDD cable System board If this cable is disconnected connect it to the system unit and repeat Procedure 3 If the FDD is still not functioning properly perform Check 2 Check 2 The FDD or its cable may be defective or damaged Replace the FDD with a new one I...

Страница 41: ...ollow the procedures below starting with Procedure 1 Continue with the other procedures as instructed Procedure 1 Message Check Procedure 2 Partition Check Procedure 3 Format Check Procedure 4 Diagnostic Test Program Execution and Replacement Check CAUTION The contents of the hard disk will be erased when the HDD Troubleshooting Procedures are executed Transfer the contents of the hard disk to flo...

Страница 42: ...form Procedure 2 If the following messages do not appear perform Check 3 Insert system disk in drive Press any key when ready or Non System disk or disk error Replace and press any key when ready 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 trans ferred to the...

Страница 43: ... 3 If drive C is not listed return to the FDISK menu and choose to create a DOS partition on drive C Then recheck the system If the problem still exists go to Procedure 3 Check 3 If drive C is listed as active in the FDISK menu go to Check 4 If drive C is not listed as active return to the FDISK menu and choose to set the active partition for drive C Then recheck the system If the problem still ex...

Страница 44: ...ORMAT C S to transfer the system program to the HDD If the following message appears on the display the HDD is formatted Format complete If any other error messages appear on the display refer to the Toshiba MS DOS Manual for more information about the error message and perform Check 2 Check 2 Using the T6400 Diagnostic Disk format the HDD with the low level format option Refer to Chapter 3 Tests ...

Страница 45: ...t generated the HDD is operating properly Table 2 4 Hard disk drive error codes and statuses Check 1 Replace the HDD unit with a new one following the instructions in Chapter 4 Re placement Procedures If the HDD is still not functioning properly perform Check 2 Check 2 Replace the system board with a new one following the instructions in Chapter 4 Code Status 01h Bad command 02h Bad address mark 0...

Страница 46: ...ubleshooting Procedures To determine if the T6400 s keyboard is functioning properly perform the following procedures Start with Procedure 1 and continue with the other procedures as instructed Procedure 1 Diagnostic Test Program Execution Check ...

Страница 47: ...and Replacement Check Procedure 1 Diagnostic Test Program Execution Check Execute the keyboard test in the Diagnostic Test program Refer to Chapter 3 Tests and Diagnos tics for more information on how to perform the test program ...

Страница 48: ...ted by two cables These cables can become dis connected or damaged Disassemble the T6400 as described in Chapter 4 and follow the checks below Check 1 Make sure the keyboard interface cable and scan cable are not damaged and are firmly connected to each unit Keyboard KBSC System board If these cables are damaged replace them with new ones or connect them if they are disconnected If these cables ar...

Страница 49: ...on describes how to determine if the T6400 s display is not functioning properly Start with Procedure 1 and continue with the other procedures as instructed The procedures described in this section are Procedure 1 Brightness Volume Check for Plasma Type Procedure 2 External CRT Check Procedure 3 Diagnostic Test Program Execution Check ...

Страница 50: ... 34 Procedure 4 Connector Check Procedure 5 Replacement Check Procedure 1 Brightness Volume Check for Plasma Type This check is for plasma displays If your T6400 has a color LCD display go to Procedure 2 ...

Страница 51: ...rightness does not change when you adjust it go to Procedure 2 Procedure 2 External CRT Check Connect the external CRT to the T6400 s RGB port then cold boot the computer The computer automatically detects the external CRT If the external the CRT works correctly the internal color LCD or plasma display may be damaged ...

Страница 52: ...rocedure 3 Diagnostic Test Program Execution Check The display test program is stored on the T6400 Diagnostic Diskette This program checks the display controller on the system board After loading Toshiba MS DOS run the Diagnostic Pro gram TESTCE64 Refer to Chapter 3 Tests and Diagnostics for detailed instructions about the ...

Страница 53: ...ions Refer to Chapter 4 Replacement Procedures for more information about how to disassemble the T6400 If any of the cables are not connected firmly reconnect them and perform Procedures 1 and 2 again If the problem still exists go to Procedure 5 Plasma Display The plasma display is connected to the system board through three display cables Any of these cables may be disconnected Disassemble the d...

Страница 54: ... new one and test the display again If the problem still exists perform Check 3 Check 3 Replace the display cable with a new one and test the display again If the problem still exists perform Check 4 Check 4 The system board may be damaged Replace the system board with a new one and test the display again Plasma Display Refer to Chapter 4 Replacement Procedures for instructions on how to disassemb...

Страница 55: ...3 1 Chapter 3 Tests and Diagnostics ...

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Страница 57: ...tion Description 3 39 3 17 2 Operations 3 40 3 18 Head Cleaning 3 43 3 18 1 Function Description 3 43 3 18 2 Operations 3 43 3 19 Seek to Landing Zone HDD 3 44 3 19 1 Function Description 3 44 3 19 2 Operations 3 44 3 20 Log Utilities 3 45 3 20 1 Function Description 3 45 3 20 2 Operations 3 45 3 21 Running Test 3 47 3 21 1 Function Description 3 47 3 21 2 Operations 3 47 3 22 Floppy Disk Drive Ut...

Страница 58: ...ames 3 10 Table 3 2 T6400 hardware bit status 3 12 Table 3 3 Error codes and error status names 3 35 Table 3 4 HDC status register contents 3 37 Table 3 5 HDC Error register contents 3 38 Table 3 6 Hard disk formatting sequence 3 39 ...

Страница 59: ...est Program Module contains the following 11 functional tests These are all located within the Diagnostic Test function of the Service Program Module 1 SYSTEMTEST 2 MEMORY TEST 3 KEYBOARDTEST 4 DISPLAYTEST 5 FLOPPY DISK TEST 6 PRINTERTEST 7 ASYNCTEST 8 HARD DISK TEST 9 REAL TIMER TEST 10 NDPTEST 11 EXPANSIONTEST To execute the T6400 Diagnostic Program you will need the following T6400 Diagnostic D...

Страница 60: ...ollowing sections detail the tests within the Diagnostic Test function of the Service Program Module Refer to Sections 3 17 through 3 23 for detailed information on the remaining eight Service Program functions ...

Страница 61: ...w TOSHIBA personal computer T6400 DIAGNOSTICS version x xx c copyright TOSHIBA Corp 1991 DIAGNOSTICS MENU 1 DIAGNOSTIC TEST 2 HARD DISK FORMAT 3 SEEK TO LANDING ZONE HDD 4 HEAD CLEANING 5 LOG UTILITIES 6 RUNNING TEST 7 FDD UTILITIES 8 SYSTEM CONFIGURATION 9 EXIT TO MS DOS 0 SETUP PRESS 0 9 KEY NOTE To exit from the DIAGNOSTIC TEST menu press Ctrl C To exit the T6400 Diagnostic Program and return t...

Страница 62: ... 3 4 through 3 14 Test menu option 88 sets the floppy disk drive and hard disk drive error retry count Option 99 exits the DIAGNOSTIC TEST MENU and returns you to the DIAGNOSTICS MENU 4 Select the test number you want to execute and press Enter A test specific display will appear For example the following display shows the System Test which appears when you type 1 and press Enter SYSTEM TEST xxxxx...

Страница 63: ...nd 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 1 Terminates the test program execution and exits to the subtest menu 2 Continues the test 3 Restarts the test from the beginning of the test Selecting No displays the error status increases the error counter by one and resumes the test 7 Type in 1 o...

Страница 64: ...isplay 04 PS 2 mouse 4 DISPLAY 01 VRAM read write 02 Character attributes 03 Character set 04 80 25 Character display 05 Graphics display color set 0 1 06 640 200 Graphics display 07 640 400 Graphics display 08 Display page 09 H pattern display 10 LED DAC pallet 11 TFT 512 color display 5 FDD 01 Sequential read 02 Sequential read write 03 Random address data 04 Write specified address 05 Read spec...

Страница 65: ...ess data 04 Cross talk peek 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 Box wraparound 02 Box mono video RAM 03 Wraparound 51 bus 04 Wraparound 32 bus ...

Страница 66: ...is subtest tests the T6400 s system board from address F0000h FFFFFh 64KB Subtest 02 HW status This subtest reads and displays the T6400 s hardware status as shown below 76543210 H W status 10101000 Bit7 Bit6 Bit5 Notch signal 2DD Bit4 FDD type 2MB Bit3 Bit2 Drive A B B Bit1 External FDD OFF Bit0 Press Ctrl Break to return to the SYSTEM TEST menu Table 3 2 describes the hardware bit status for eac...

Страница 67: ...Address Pattern Data This subtest writes address pattern data created by eXclusive ORing XORing to the address segment and address offset in conventional memory 0 to 640KB The address pattern data is then read from conventional memory and compared to the original data Subtest 03 RAM Refresh Real Mode This subtest writes a 256 byte unit of constant data AAAAh and 5555h to conven tional memory 0 to ...

Страница 68: ...st is the same as subtest 04 and is used to test an optional memory card Memory modules for the T6400 are available in 2MB 4MB and 8MB capacities When you select Subtest 05 the following message appears Extended memory size 1 2 MB 2 4 MB 3 8 MB Select the number that corresponds to the memory card capacity installed in the T6400 ...

Страница 69: ...test 01 02 Pressed Key Display 101 102 NOTE The Num Lock Num Lock key must be off to execute these two subtests When you execute the Pressed Key Display Test 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 asterisk character Holding a key down enables the auto repeat function which causes the key s display charact...

Страница 70: ...Alt Ctrl Left Shift and Right Shift keys are displayed in reverse video when pressed The scan codes character codes and key top names are listed 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 04 PS 2 Mouse This subtest tests the connection of the PS 2 mouse communication ...

Страница 71: ...ing character attribute modes normal intensified reverse and blinking as shown in the display below The character attribute modes display the foreground color and intensified color 16 colors or 16 levels of gray 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 Press Ctrl Break to return to the DISP...

Страница 72: ...EFGHIJKLMNOPQRSTUVWXYZ _ abcdefghijklmnopqr 0123456789 ABCDEFGHIJKLMNOPQRSTUVWXYZ _ abcdefghijklmnopqrs 0123456789 ABCDEFGHIJKLMNOPQRSTUVWXYZ _ abcdefghijklmnopqrst 0123456789 ABCDEFGHIJKLMNOPQRSTUVWXYZ _ abcdefghijklmnopqrstu 0123456789 ABCDEFGHIJKLMNOPQRSTUVWXYZ _ abcdefghijklmnopqrstuv 0123456789 ABCDEFGHIJKLMNOPQRSTUVWXYZ _ abcdefghijklmnopqrstuvw 0123456789 ABCDEFGHIJKLMNOPQRSTUVWXYZ _ abcdef...

Страница 73: ...ISPLAY TEST menu Subtest 06 640x200 Graphics Display This subtest displays the even dots odd dots and all dots block in the 640x200 dots graphics mode 6 and E as shown below Press Ctrl Break to return to the DISPLAY TEST menu 640 200 GRAPHICS DISPLAY X EVEN DOTS ODD DOTS ALL DOTS DRIVEN DRIVEN DRIVEN PRESS ENTER KEY GREEN RED YELLOW CYAN MAGENTA WHITE 320 200 GRAPHICS DISPLAY COLOR SET X X PRESS E...

Страница 74: ...test confirms that the pages can be changed in order from page 0 through page 7 in the 40x25 character mode DISPLAY PAGE 0 0000000000000000000000000000000000000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0000000000000000000000000000000000000000 Press Ctrl Break to return to the DISPLAY TEST menu The menu will appear once the program has displayed all seven pages 640 400 GRAPHICS DISPLAY XX EVE...

Страница 75: ...HHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH Press Ctrl Break to return to the DISPLAY TEST menu Subtest 10 LED DAC Pallet This subtest checks the Caps Lock and Num Lock key operations by writing 2Ah 15h data to 6 bits of 256x3 RGB This data is then read and compared to the original data Caps Num Scroll LED test 1 Press Caps ...

Страница 76: ...D 2 0 FDD1 2 2 Select the media type of the floppy disk in the 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 pressing Enter sets the start track at 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...

Страница 77: ...EST 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 the bad data pattern B5ADADh to all the tracks as specified 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 The ...

Страница 78: ...xxxxh number The T6400 supports three printer channels Select the printer channel number and press Enter to execute the selected subtest Subtest 01 Ripple Pattern This subtest prints characters for codes 20h through 7Eh line by line while shifting one character to the left at the beginning of each new line 0123456789 ABCDEFGHIJKLMNOPQRSTUVWXYZ _ abcdefghijklm 0123456789 ABCDEFGHIJKLMNOPQRSTUVWXYZ ...

Страница 79: ...UBLE STRIKE PRINT 6 ALL CHARACTERS PRINT 0123456789 ABCDEFGHIJKLMNOPQRSTUVWXYZ _ abcdefghijklmn opqrstuvwxyz Subtest 03 Wraparound NOTE To execute this subtest a printer wraparound connector must be connected to the T6400 s printer port The printer wraparound connector 34M741986G01 wiring diagram is described in Appendix F This subtest checks the output and bi directional modes of the data control...

Страница 80: ...e serial I O port address is specified by the xxxxh number The T6400 supports three serial port channels Select the serial port channel number and press Enter to execute the selected 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 wraparound connector wiring diagram is described in Ap...

Страница 81: ...ove This subtest receives the data from the send side then returns the data Subtest 05 Card Modem Loopback 1200BPS NOTE To execute this subtest a built in modem must be installed This subtest sends data from the RS 232 C port to the built in modem The same data is then sent from the modem to the RS 232 C port and compared to the original data When you select the channel number of the serial port a...

Страница 82: ...MS DOS FDISK command which will partition the hard disk Then 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 appear ...

Страница 83: ... 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 Uniquence Uniqueness This subtest writes unique address data to each sector of the HDD track by track The data...

Страница 84: ...pecified 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 specified cylinder and head on the HDD Subtest 09 Sequential Write This subt...

Страница 85: ...the current date is not correct input the correct date at the 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 military format After pressing Enter you return to the REAL TIMER TEST menu Subtest 02 Backup Memory This subtest performs the following backup memory checks Writes 1 bit of on data to addresses 01h throu...

Страница 86: ...d to an 80486DX CPU Subtest 01 NDP test This subtest checks the following functions of the numeric data processor Control word Status word Bus Addition Multiplication This test determines whether or not an NDP is installed by sending one bit of on data to the NDP If the test determines that an NDP is installed the test is executed ...

Страница 87: ...3 or TC status Data bus test 00h FFh Address bus test A0000h AFFFFh Wait CNT test Subtest 02 Box Mono Video RAM NOTE To execute this subtest a monochrome display card must be installed in the expansion unit This subtest writes data FFh AAh 55h 00h into the monochrome display memory B0000h to B0F9Fh then reads the data out and compares it with the original data Subtest 03 Wraparound Test 51 bus NOT...

Страница 88: ...Wraparound Test 32 bus NOTE To execute this subtest a wraparound board must be installed in the expansion unit The following tests are executed Clock test OSC CLK ALE DACK0 Interrupt test IRQ7 3 IRQ14 IRQ12 9 DMA 1 test channel 1 3 or TC status Data bus test 00h FFh Address bus test C0000h CFFFFh ...

Страница 89: ...Checksum Error MEMORY 01 Parity Error 02 Protected Mode Not Change 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 80 Time Out Error EE Write Buffer Error PRINTER 01 Time Out 08 Fault 10 Select Line 20 Out Of Paper 40 Power Off 80 Busy Line ...

Страница 90: ...dem 34 ERROR Card Modem 36 NO DIAL TONE Card Modem HDD 01 Bad Command Error 02 Bad Address Mark Error 04 Record Not Found 05 HDC Not Reset 07 Drive Not Initialize 09 DMA Boundary Error 0A Bad Sector 0B Bad Track Error 10 ECC Error 11 ECC Recover Enable 20 HDC Error 40 Seek Error 80 Time Out Error AA Drive Not Ready BB Undefined CC Write Fault E0 Status Error F0 Not sense error NDP 01 No CO PROCESS...

Страница 91: ...st byte displays the contents of the HDC status register in hexadecimal form and the second byte displays the HDC error register Bit Name Description 7 BSY Busy 0 HDC is busy 1 HDC is ready 6 DRDY Drive ready 0 Hard disk drive is not ready to accept any command 1 Hard disk drive is ready 5 DWF Drive write fault 0 DWF error is not detected 1 Write fault condition occurs 4 DSC Drive seek complete 0 ...

Страница 92: ...s no uncorrectable data error 1 Uncorrectable data error has been detected 5 Not used 4 IDNF Identification 0 Otherwise 1 There was no ID field in the requested sector 3 Not used 2 ABRT Abort 0 Otherwise 1 Illegal command error or a drive status error occurs 1 TK09 Track 0 0 The hard disk has found track 0 during a recalibrate command 1 The hard disk could not find track 0 during a recalibrate com...

Страница 93: ...ood track FORMAT 3 Bad track FORMAT 4 Bad track CHECK CAUTION The contents of the hard disk will be erased when this program is executed Before executing the program transfer the contents of the hard disk onto a floppy disk s This can be done with the Toshiba MS DOS BACKUP command See the Toshiba MS DOS manual for details 3 17 1 Function Description 1 All track FORMAT This option performs a low le...

Страница 94: ...for bad tracks by reading data to all of the tracks on the hard disk A list of bad tracks is displayed when the program is completed If an error other than a bad track is detected the program is automatically terminated 3 17 2 Operations CAUTION After the HDD has been formatted execute the Toshiba MS DOS FDISK command to partition the HDD Next execute the Toshiba MS DOS FORMAT command Refer to the...

Страница 95: ...ARNING Current DISK data will be completely destroyed Press Bad track number CCCCHH key 5 Enter the cylinder and head number of the bad tracks on the HDD and press Enter The cylinder number is represented by CCCC and HH is the head number If the HDD does not have any bad tracks press Enter The cylinder head XXXX XX message will appear and all the cylinders in the hard disk will be formatted and ch...

Страница 96: ...n format only one track per operation Repeat the operation as many times as necessary to format several good tracks or bad tracks 5 After a track on the hard disk has been formatted the following message will be displayed Format complete 6 Press Enter to return to the HARD DISK FORMAT menu 4 Bad track CHECK option 1 When this option is selected the following message will appear Drive number select...

Страница 97: ...y executing a series of head load seek and read opera tions A cleaning kit is necessary to perform this function 3 18 2 Operations 1 Select the HEAD CLEANING function by typing 4 from the DIAGNOSTICS MENU and pressing Enter The following message is displayed DIAGNOSTICS FLOPPY DISK HEAD CLEANING Vx xx Mount cleaning disk s on drive s Press any key when ready 2 Remove the Diagnostic Disk from the F...

Страница 98: ...D containing data This can damage the disk surface thus causing a permanent loss of data To protect the HDD and its data the Seek to Landing Zone function moves the HDD heads to safe areas called the landing zone NOTE The built in hard disk drive control automatically moves the heads to the landing zones at power down 3 19 2 Operations 1 Select the SEEK TO LANDING ZONE function by typing 3 and pre...

Страница 99: ... CNT 2 Test name TS NAME 3 Subtest number TS NAME 4 Pass count PASS 5 Error status 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 20 2 Operations 1 Select the LOG UTILITIES function by typing 5 and pressing Enter from the DIAGNOS TICS MENU Error information will now be logged into RAM or on the floppy disk The error in...

Страница 100: ...4 Clear 5 Print 6 FD Log Read 7 FD Log Write 2 The error information displayed on the screen can be manipulated with the following number keys Number Key Function 1 Scrolls the display to the next page 2 Scrolls the display to the previous page 3 Returns to the DIAGNOSTICS MENU ...

Страница 101: ... test Subtest number 01 05 8 Real timer test Subtest number 02 The system automatically detects the number of floppy disk drives connected to the T6400 for the FDD test 3 21 2 Operations CAUTION Do not forget to load a work disk in the FDD If a work disk is not loaded an error will be generated during the FDD testing 1 Remove the Diagnostic Disk from the floppy disk drive and insert the work disk ...

Страница 102: ...ppy disk drive The option is different than the Toshiba MS DOS FORMAT command This option can format a 5 25 or 3 5 inch floppy disk in the following formats 1 2D Double sided double density 48 67 5 TPI MFM mode 512 bytes 9 sectors track 2 2DD Double sided double density double track 96 135 TPI MFM mode 512 bytes 9 sectors track 3 2HD Double sided high density double track 96 135 TPI MFM mode 512 b...

Страница 103: ...D 3 2HD 2HD 3 Select a media drive type number and press Enter A message similar to the one below will be displayed Warning Disk data will be destroyed Insert work disk into drive x Press any key when ready 4 Remove the Diagnostics Disk from the FDD insert the work disk and press any key The following message will be displayed when the FDD format is executed FDD TYPE TRACK xxx FDD TYPE HEAD x FDD ...

Страница 104: ...DD insert the source disk and press any key The following message will appear indicating the program has started FDD TYPE TRACK xxx FDD TYPE HEAD x FDD TYPE SECTOR xx Copy start track head xxx x 4 Remove the source disk from the FDD insert a formatted work disk and press any key The track head XXX X message will appear and start copying to the target disk When the amount of data is too large to be...

Страница 105: ... Select FDD number 1 A 2 B 4 Select an FDD drive number and the following message will appear Insert source disk into drive x Press any key when ready 5 Remove the Diagnostic Disk from the FDD and insert a source disk Press any key and the following message will appear Max address Track xxxx Head xx Sector xx Track number 6 Type the track number and press Enter The following message will appear He...

Страница 106: ... information for the T6400 BIOS ROM version Base memory size Display mode Number of floppy disk drives Number of ASYNC ports Number of hard disk drives Number of printer ports Co processor Extended memory size 3 23 2 Operations Select the SYSTEM CONFIGURATION function from the DIAGNOSTICS MENU by typing 8 and pressing Enter A system configuration screen similar to the one shown below will be displ...

Страница 107: ...ation as listed below MEMORY Total Base Extended Memory Shadow BIOS DISPLAY LCD model DISPLAY PDP model Display Adapter Display Adapter Display Device Display Device LCD Display Mode Plasma Display Mode LCD Display Colors Plasma Gray Scale HARDDISK Capacity CPU CPU Type CPU Clock Speed COM PRT FDD Serial Port Built in Modem Expansion Slot External FDD PRT Printer Port Type OTHERS Processing Speed ...

Страница 108: ...sma Plasma Display Mode Color Plasma Gray Scale Normal Semi Bright Intense Bright Capacity 120MB Serial Port COM1 IRQ4 3F8H Built in Modem COM2 IRQ3 2F8H Expansion Slot IRQ3 Disable External FDD PRT Printer Printer Port Type Output Processing Speed High Cache Enable Display Auto Off 30Min Numlock init State ON CPU HARD DISK MEMORY OTHERS COM PRT FDD Not Registered POWER ON PASSWORD TIME DATE DISPL...

Страница 109: ...nual Reset section below Manual Reset Follow these steps to change any SETUP option s manually NOTE The cursor shown as a reverse video bar indicates which option is presently selected for change 1 Use the arrow keys or Enter to move the cursor between the options You can also select each option group by pressing the character on the keyboard corresponding to the first character of the heading for...

Страница 110: ...e following message is displayed Remove the Password Service Disk and Press any key Remove the diskette and press any key The diskette should be stored in a safe place 9 The new SETUP values are now recorded in CMOS memory and the system reboots 3 24 4 SETUP Option Descriptions This section explains the alternate settings for each SETUP option MEMORY This group of options displays the configuratio...

Страница 111: ... display adapter is disabled You can install any external display controller card in the expansion slots Re maining display setup options are not available DISPLAYDEVICE Use this option to select whether the screen will display on the T6400 s plasma display and or on an external CRT via the RGB port on the back of the computer If a CRT is connected to the T6400 the display mode of the plasma displ...

Страница 112: ... Bright Intense Semi Bright The maximum brightness level gray scale level 15 will be used to display characters COLORLCD DISPLAYADAPTER Use this option to choose the internal display adapter VGA Compatible Chooses the internal display adapter for the VGA display This is the default setting Not Used Internal display adapter is disabled You can install any external display controller card in the exp...

Страница 113: ...ls of gray for the color LCD display LCDDISPLAYCOLORS This option selects whether the color LCD display supports 512 colors or 180K colors This option appears only if you selected Color for LCD Display Mode option 180K Colors Supports 180K colors This is the default setting 512 Colors Supports 512 colors HARDDISK This option displays the size and type of hard disk installed in the T6400 Capacity x...

Страница 114: ...ult setting Not used Disables the built in modem port You can now install an optional card into the expansion chassis without any conflict with the COM level of the built in modem port EXPANSIONSLOT This option allows you to enable and disable IRQ3 for the expansion slot When enabled the SETUP program checks whether COM IRQ3 2F8H is selected as a COM level for Serial Port or Built in Modem option ...

Страница 115: ...rallel signal Output Activates the uni directional parallel signal output only This is the default setting Bi Directional Activates the bi directional parallel signal input and output OTHERS PROCESSINGSPEED Use this option to select the CPU speed Some optional boards and application software are dependent on the CPU speed If your optional card or application software doesn t run with High speed se...

Страница 116: ... is turned on or rebooted POWER ON PASSWORD This option allows you to enable or disable the password required for the T6400 to power on and allow access to the C prompt Registered Enables the Power On Password function The computer will require the correct password before allowing the power on sequence to continue Not Registered Disables the Power On Password function By disabling the password the...

Страница 117: ...acters The character string you enter is displayed as a string of asterisks For example if you enter a four character password the display shows Password 4 Press Enter and the following message appears allowing you to verify the password Verify Password 5 Re enter the same character string you entered in step 2 and press Enter If the two character strings match the password is registered and the d...

Страница 118: ... matches the registered password the password option is reset and the display changes to Not Registered If they do not match the following message appears along with a beep and the display returns to Registered TIME DATE The SETUP function displays the current time and date values stored by the calendar clock timer You can change these values by using the Spacebar and Backspace keys ...

Страница 119: ...4 1 Chapter 4 Replacement Procedures ...

Страница 120: ...4 2 This page intentionally left blank ...

Страница 121: ...nstalling the 3 5 Hard Disk Drive 4 25 4 8 Speaker 4 26 4 8 1 Removing the Speaker 4 26 4 8 2 Installing the Speaker 4 26 4 9 DC Fans 4 27 4 9 1 Removing the DC Fans 4 27 4 9 2 Installing the DC Fans 4 27 4 10 Power Supply Unit 4 28 4 10 1 Removing the Power Supply Unit 4 28 4 10 2 Installing the Power Supply Unit 4 28 4 11 LED Board and Display Shut Off Switch 4 29 4 11 1 Removing the LED Board a...

Страница 122: ...e 4 21 Removing the four FDD screws 4 22 Figure 4 22 Removing the FDD bracket screws 4 22 Figure 4 23 Removing the HDD 4 24 Figure 4 24 Removing the HDD bracket 4 24 Figure 4 25 Removing the speaker 4 26 Figure 4 26 Removing the DC fans 4 27 Figure 4 27 Removing the power supply unit 4 28 Figure 4 28 Removing the LED board 4 29 Figure 4 29 Removing the display shut off switch 4 29 Figure 4 30 Remo...

Страница 123: ...or LCD Keyboard CPU Oscillator Top Cover Power Supply Unit System Board Display Cables 3 5 Floppy Disk Drive 3 5 Hard Disk Drive LED Board Speaker DC Fans 4 1 1 Before You Begin Review the procedures in this section before you begin disassembling the T6400 Familiarize yourself with the steps required to disassemble and reassemble the T6400 Begin each procedure by removing the AC power cord 1 Do no...

Страница 124: ... 1 2 Disassembly Procedures The T6400 has two basic types of cable connectors Pressure Plate Connectors Normal Pin Connectors To disconnect a Pressure Plate Connector release the tabs on both sides of the plastic connector and slide the cable out of the connector To connect a cable to a Pressure Plate Connector make sure the tabs of the Pressure Plate Connector are fully extended and then slide th...

Страница 125: ...FRU and the T6400 are functioning properly 4 1 4 Tools and Equipment The use of ElectroStatic Discharge ESD equipment is very important to your safety and the safety of those around you Proper use of ESD devices will increase the success rate of your repairs and lower the cost of damaged or destroyed parts and FRUs The following equipment is necessary to disassemble and reassemble the T6400 One 2 ...

Страница 126: ...s if you were going to use the T6400 Place the Keyboard in front of the computer 3 Remove the seven M2 5x4 Silver Screws securing the System Board Cover to the Top Cover Figure 4 1 Figure 4 1 Removing the seven system board cover screws 4 Remove the System Board Cover from the T6400 and place it aside ...

Страница 127: ...e M2 5x8 Ground Screw securing the Key board Cable Then disconnect the Keyboard Cable from PJ909 on the System Board 6 Lift the Keyboard Cable out Figure 4 2 Figure 4 2 Removing the keyboard cable 7 Turn the Keyboard over Remove the eight M2 5x6 Silver Screws securing the Keyboard Base Figure 4 3 Figure 4 3 Removing the keyboard base ...

Страница 128: ...e Scan Controller Board to the Keyboard Figure 4 4 Figure 4 4 Removing the scan controller screws 10 Gently lift the Scan Controller Board and rotate it toward the computer Figure 4 5 11 Disconnect the Keyboard Interface Cable from pressure plate PJ11 on the Scan Control ler Board Disconnect the Keyboard Cable from PJ10 on the Scan Controller Board Figure 4 5 Figure 4 5 Disconnecting the keyboard ...

Страница 129: ... is routed under the screw post closest to the Keyboard Cable connection Secure the Scan Controller Board in place with the two M2 5x4 Screws 5 The two ends of the Keyboard Interface Cable each has an indentation between the ferrite core and the cable connection These indentations should be positioned in the cutouts provided in the computer 6 Place the bottom cover of the Keyboard Assembly in plac...

Страница 130: ...he lever on the left side of the CPU socket in the direction of the arrow shown in Figure 4 7 Lift the lever up until you hear a click indicating the lever is fully extended Figure 4 7 Releasing the CPU lever CAUTION If the T6400 has been in operation recently the CPU s surface may be hot Allow the CPU to cool to the touch before attempting to remove it 3 Grasp the CPU and lift it out of the T6400...

Страница 131: ...he oscillator 4 3 3 Installing the Central Processing Unit and Oscillator 1 Make sure the lever on the CPU Socket is fully extended Figure 4 8 2 Correctly align the CPU with the CPU Socket The small circle on the left back corner of the CPU should be positioned with the small yellow circle on the System Board These circles indicate the correct positioning of Pin 1 on the CPU Figure 4 10 CAUTION Mi...

Страница 132: ...h it under the clip on the side of the socket 5 To install the Oscillator align the Oscillator with the Oscillator Socket Note that the connector is keyed for proper alignment of Pin 1 on the Oscillator Figure 4 11 Figure 4 11 Installing the oscillator 6 Push the Oscillator into its socket until it is securely seated ...

Страница 133: ...ructed in steps 1 4 of Section 4 2 2 Remove the three M2 5x4 Silver Screws securing the Built in Modem Cover to the Base Assembly Figure 4 12 3 Remove the two M2 5x4 Silver Screws securing the Built in Modem Case to the Base Assembly Figure 4 12 Removing the built in modem cover and case ...

Страница 134: ... 14 Then remove the Rear Cover 6 Remove the four M2 5x4 Silver Screws securing the Rear Support Then remove the Rear Support NOTE If an expansion card is installed in the expansion slot remove the one M2 5x4 screw securing the expansion card and then remove the card NOTE If your T6400 has a Matsushita Power Supply Unit the Rear Support is secured by four screws If your T6400 has a Toshiba Power Su...

Страница 135: ...over Remove the single M3x8 Screw Figure 4 15 Figure 4 15 Removing the display hinge screw 8 Remove the five M2 5x8 Screws Then remove the External 3 5 FDD Port Cover and slide the Handle out until it is fully extended Figure 4 16 Figure 4 16 Removing the five screws and 3 5 FDD port cover ...

Страница 136: ...and the Base Assembly Install the five M2 5x8 Screws and the External 3 5 FDD Port Cover Figure 4 16 Then retract the Handle 3 Install the single M3x8 Screw under the Right Display Hinge Cover and snap the Right Display Hinge Cover into place Figure 4 15 Close the Display 4 Turn the T6400 over and install the Rear Support Secure the Rear Support in place with the three or four M2 5x4 Silver Screws...

Страница 137: ...cure the Built in Modem Then install the Built in Modem Case and secure it in place with the two M2 5x4 Silver Screws Figure 4 12 8 Install the Built in Modem Cover and secure it in place with the three M2 5x4 Silver Screws Figure 4 12 ...

Страница 138: ... Interface Board straight up to disconnect it from PJ910 on the System Board Figure 4 18 Figure 4 18 Removing the I O interface board screws 4 Disconnect the FDD Cable from pressure plate PJ5 the HDD Cable from PJ7 the HDD Power Cable from PJ6 the DC Fan Cables from PJ906 and PJ907 and the Speaker Cable from PJ407 on the System Board Figure 4 19 Figure 4 19 Disconnecting the FDD HDD DC fan cables ...

Страница 139: ...peaker Cable and DC Fan Cables are not beneath the System Board 2 Secure the System Board in place with the two M2 5x4 Screws and the two 6mm Screw Extension Holders Figure 4 20 NOTE The longer Screw Extention Holder goes in the back right corner of the System Board 3 Connect the FDD Cable to PJ5 the HDD Cable to PJ7 the HDD Power Cable to PJ6 the DC Fan Cables to PJ906 and PJ907 and the Speaker C...

Страница 140: ...ion 4 5 2 Remove the four M2 5x4 Screws securing the FDD in place Then lift the FDD and its bracket out of the T6400 Figure 4 21 Figure 4 21 Removing the four FDD screws 3 To remove the FDD Bracket remove the three M2 5x4 Screws securing the FDD to the FDD Bracket Figure 4 22 Figure 4 22 Removing the FDD bracket screws ...

Страница 141: ...tion the FDD Mask CD Attachment on the Base Assembly with the tab facing up and the finished edge of the mask facing outward 3 Place the FDD in the T6400 Make sure the front of the FDD is properly aligned with the FDD Mask CD Attachment on the Base Assembly Secure the FDD and the FDD Bracket with the four M2 5x4 Screws Figure 4 21 ...

Страница 142: ...crews securing the HDD and the HDD Bracket in place Then lift the HDD and its bracket out of the T6400 Figure 4 23 Figure 4 23 Removing the HDD 3 To remove the HDD Bracket remove the four Special Screws securing the HDD to the HDD Bracket Then disconnect the HDD Cable and HDD Power Cable Figure 4 24 from the HDD Figure 4 24 Removing the HDD bracket ...

Страница 143: ...rt on the connector edge of the HDD Cable is the end inserted into the HDD 2 Secure the HDD Bracket to the HDD with the four Special Screws Figure 4 24 3 Place the HDD in the T6400 Two alignment tabs are located on either side of the HDD Bracket Make sure the HDD cable connector is facing the front of the T6400 Secure the HDD and HDD Bracket with the four M2 5x4 Screws Figure 4 23 ...

Страница 144: ...uring the Speaker to the T6400 Then remove the Speaker from the T6400 Figure 4 25 Figure 4 25 Removing the speaker 4 8 2 Installing the Speaker 1 Place the Speaker in the T6400 The manufacturer s label should face down and the speaker cable should come out to the left Secure the Speaker in place with the two M2x4 Screws Figure 4 25 ...

Страница 145: ...remove the four Special Screws securing the DC Fans Figure 4 26 Figure 4 26 Removing the DC fans 4 9 2 Installing the DC Fans 1 Install the DC Fans on the Assembly Bracket Position the fans so that the manufacturer s labels are upside down and face the vents on the Base Assembly 2 Secure the DC Fans in place with the four Special Screws Figure 4 26 3 Place the DC Fan and the Assembly Bracket in th...

Страница 146: ...igure 4 27 Removing the power supply unit 4 You can now lift out the Display Cable Cover 4 10 2 Installing the Power Supply Unit 1 Position the ferrite core on the Display Cable within the reservoir and beneath the clip on the Top Cover 2 Place the Display Cable Cover over the ferrite core on the Display Cable making sure to align the cover with the two guide pins NOTE Do not install any screws at...

Страница 147: ...d to the T6400 Figure 4 28 3 Rotate the LED Board as shown in Figure 4 28 and disconnect the Display Shut Off Switch Cable from PJ802 on the LED Board The LED Board can now be removed from the T6400 Figure 4 28 Removing the LED board 4 To remove the Display Shut Off Switch remove the single M2x8 Screw securing the Display Shut Off Switch to the Base Assembly Figure 4 29 Figure 4 29 Removing the di...

Страница 148: ...ff Switch and secure it in place with the single M2x8 Screw Figure 4 29 2 Connect the Display Shut Off Switch Cable to PJ802 on the LED Board and rotate the board into the computer 3 Align the LED Board with the two guide pins and secure the board in place with the two M2 5x4 Screws Figure 4 28 ...

Страница 149: ...rom the top of the Display and the Display Hinge Covers from the bottom of the Display 3 Remove the two M2 5x8 Silver Bottom Screws and the two M2 5x4 Silver Top Screws securing the Display Mask Figure 4 30 Removing the display mask screws Rubber cushions M2 5x4 silver screws Display hinge covers M2 5x8 silver screws ...

Страница 150: ...After all the latches on the Display Mask are released remove the Display Mask from the T6400 Figure 4 31 Removing the display mask 4 12 2 Installing the Display Mask 1 Install the Display Mask Figure 4 31 2 Secure the Display Mask in place with the four M2 5x8 Screws and install the Rubber Cushions and Display Hinge Covers Figure 4 30 ...

Страница 151: ... the Brightness Control Board and disconnect the Brightness Control Cable from PJ803 on the Brightness Control Board Figure 4 32 Figure 4 32 Removing the brightness control board 3 Remove the six M2 5x4 Screws securing the Gas Plasma Display and the one M2 5x4 Screw securing the DC DC Converter Figure 4 33 Figure 4 33 Removing the gas plasma display screws ...

Страница 152: ...e DC DC Converter Cable from PJ803 Figure 4 34 Figure 4 34 Disconnecting the display cables 5 Disconnect the DC DC Converter Cable on the Gas Plasma Display Slide the DC DC Converter Cable out of the clip on the back of the Gas Plasma Display Remove the two Screws securing the DC DC Converter to the Back Display Cover Figure 4 35 Figure 4 35 Removing the DC DC converter ...

Страница 153: ...s Figure 4 36 2 Connect the DC DC Converter Cable to the Gas Plasma Display Figure 4 35 Secure the DC DC Converter to the Back Display Cover with the two Screws Make sure you connect the Ground Cable with the bottom screw 3 Connect the Gas Plasma Display Cables and the Brightness Control Cable to the Gas Plasma Display Figure 4 34 4 Secure the Gas Plasma Display and the Ground Cable to the Back Di...

Страница 154: ...emove the two M2 5x4 Screws securing the DC DC Converter Board Figure 4 37 Disconnect the cables from the top and the bottom of the DC DC Converter Board Figure 4 37 Removing the DC DC converter board 3 Remove the three M2 5x4 Screws securing the FL Inverter Board Figure 4 38 Figure 4 38 Removing the FL inverter board screws ...

Страница 155: ...he T6400 Figure 4 39 Disconnecting the FL inverter cables 5 Remove the four M2 5x4 Screws securing the Color LCD to the Back Display Cover Figure 4 40 Figure 4 40 Removing the color LCD screws 6 Lay the Color LCD on the Top Cover and disconnect the Display Cable Figure 4 41 Figure 4 41 Removing the color LCD ...

Страница 156: ...ce with the four M2 5x4 Screws Figure 4 42 2 Connect the Display Cable to the Color LCD Figure 4 41 3 Place the Color LCD in the Back Display Cover and secure it with the four M2 5x4 Screws Figure 4 40 4 Place the FL Inverter Board in the Color LCD and connect the FL Inverter Cables Figure 4 39 5 Secure the FL Inverter Board in place with the three M2 5x4 Screws Figure 4 38 6 Connect the two cable...

Страница 157: ...FL Inverter Board Figure 4 43 Discon nect the five cables from the FL Inverter Board Figure 4 43 Removing the FL inverter board 3 Remove the four M2 5x4 Screws securing the Color LCD to the Back Display Cover and disconnect the Display Cable Figure 4 44 Figure 4 44 Removing the color LCD screws and display cable CN3 CN4 CN2 CN5 CN1 FL inverter board M2 5x4 screws ...

Страница 158: ...x4 Screws Figure 4 45 2 Connect the Display Cable to the Color LCD Figure 4 44 3 Place the Color LCD in the Back Display Cover and secure it with the four M2 5x4 Screws Figure 4 44 4 Place the FL Inverter Board in the Color LCD and connect the FL Inverter Cables Figure 4 43 NOTE The two white cables at the top of the Display go into the two connectors at the top of the FL Inverter Board Make sure ...

Страница 159: ... Display Cable from its clip Remove the M2 5x4 Silver Screw securing the Display Cable Cover Figure 4 46 Figure 4 46 Removing the display cable 3 Slightly close the Display and then slide the Display Cable out of the Top Cover 4 16 2 Installing the Display Cable 1 Slide the Display Cable through the Top Cover 2 Install the Display Cable Cover and secure it with the single M2 5x4 Silver Screw Figur...

Страница 160: ...4 42 This page intentionally left blank ...

Страница 161: ...App 1 Appendices ...

Страница 162: ...App 2 This page intentionally left blank ...

Страница 163: ...Speaker I F Connector 2 Pin App 20 B 14 PJ408 LED I F Connector 8 Pin App 20 B 15 PJ411 Feature Connector 26 Pin App 21 B 16 PJ412 DVI Support Connector 34 Pin App 21 B 17 PJ413 ISA Slot Connector 104 Pin App 22 B 18 PJ901 PS I F Connector 6 Pin App 23 B 19 PJ902 PS I F Connector 4 Pin App 23 B 20 PJ906 Fan I F Connector 2 Pin App 23 B 21 PJ907 Fan I F Connector 2 Pin App 23 B 22 PJ909 Int KB Conn...

Страница 164: ... 17 ISA slot connector pin assignment 104 pin App 22 Table B 18 PS I F connector pin assignment 6 pin App 23 Table B 19 PS I F connector pin assignment 4 pin App 23 Table B 20 Fan I F connector pin assignment 2 pin App 23 Table B 21 Fan I F connector pin assignment 2 pin App 23 Table B 22 Int KB connector pin assignment 4 pin App 23 Table B 23 I O board I F connector pin assignment 40 pin App 24 T...

Страница 165: ...App 5 Appendix A Board Layouts A 1 System Board FVCSYx ICs Figure A 1 System board FVCSYx ICs front 1 2 3 4 6 5 7 8 9 10 11 ...

Страница 166: ...2 IC6 System controller gate array 3 IC7 Super integration SI T9901 4 IC413 Color gray scale controller CGSC 5 IC412 Digital analog connector DAC 6 IC21 Real time clock RTC 7 IC407 PVGA1F 8 IC408 IC409 IC919 IC920 Video RAM 9 IC28 Keyboard controller KBC 10 IC905 BIOS ROM 11 IC8 IC10 IC11 IC12 IC14 IC15 System Memory ...

Страница 167: ...App 7 A 2 System Board FVCSYx Connectors Figure A 3 System board FVCSYx connectors front 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ...

Страница 168: ...App 8 Figure A 4 System board FVCSYx connectors back 23 24 22 21 ...

Страница 169: ... interface connector 10 PJ901 Power supply connector 11 PJ902 Power supply connector 12 PJ404 Display connector 13 PJ909 Keyboard connector 14 PJ904 CD ROM HDD power connector 15 PJ908 Internal external FDD select jumper 16 PJ5 FDD interface connector 17 PJ6 HDD power connector 18 PJ7 HDD interface connector 19 PJ1 Expansion memory connector 20 PJ407 Speaker connector 21 PJ3 Modem interface connec...

Страница 170: ...App 10 A 3 System Board FVCSYx Oscillators Figure A 5 System board FVCSYx oscillators front 9 1 2 3 4 5 6 7 8 ...

Страница 171: ...z for floppy disk controller and variable frequency oscillator 3 X5 14 31818 MHz for keyboard controller 4 X904 36 0 MHz for display controller 5 X9 44 9 MHz for display controller 6 X902 25 175 MHz for display controller 7 X901 28 322 MHz for display controller 8 X903 32 768 KHz for real time clock 9 X1 33 34 or 25 0 MHz for CPU ...

Страница 172: ...App 12 A 4 LED Board FVCLEx Figure A 7 LED board A 5 I O Interface Board FVCFDx Figure A 8 I O interface board A 6 Keyboard Scan Controller Board FVCKBx Figure A 9 Keyboard scan controller board ...

Страница 173: ...MA02 111 O 58 MA03 111 O 15 VCC 59 MA05 111 O 16 MA04 111 O 60 MA07 111 O 17 N C 61 MA09 111 O 18 MA06 111 O 62 GND 19 MA08 111 O 63 GND 20 MA10 111 O 64 GND 21 GND 65 RAS1 000 O 22 RAS0 000 O 66 CAS2 011 O 23 CAS0 011 O 67 GND 24 CAS1 011 O 68 CAS3 011 O 25 N C 69 RAS3 000 O 26 RAS2 000 O 70 MEMWE 011 O 27 VCC 71 VCC Pull down 28 VCC Pull down 72 N C 29 N C 73 GND 30 N C 74 N C 31 N C 75 N C 32 N...

Страница 174: ...3 112 O 15 VCC 59 MA05 112 O 16 MA04 112 O 60 MA07 112 O 17 N C 61 MA09 112 O 18 MA06 112 O 62 GND 19 MA08 112 O 63 GND 20 MA10 112 O 64 GND 21 GND 65 RAS5 000 O 22 RAS4 000 O 66 CAS2 012 O 23 CAS0 012 O 67 GND 24 CAS1 012 O 68 CAS3 012 O 25 N C 69 RAS7 000 O 26 RAS6 000 O 70 MEMWE 012 O 27 VCC 71 VCC Pull down 28 VCC Pull down 72 N C 29 N C 73 GND 30 N C 74 N C 31 N C 75 N C 32 N C 76 N C 33 GND ...

Страница 175: ...OW 000 I O 08 GND 23 IOR 100 I O 09 SD07 100 I O 24 VCC 10 SD06 100 I O 25 RESET 100 O 11 GND 26 VCC 12 GND 27 BMPOFF 100 O 13 SD05 100 I O 28 VCC 14 SD04 100 I O 29 BMIRQ 000 I 15 SD03 100 I O 30 BSPTON 000 I Pin Signal I O Pin Signal I O 01 STROB 000 I O 14 AUTFD 000 I O 02 PDB00 100 I O 15 ERROR 000 I O 03 PDB01 100 I O 16 PINIT 000 I O 04 PDB02 100 I O 17 SLIN 000 I O 05 PDB03 100 I O 18 GND 0...

Страница 176: ...assignment 4 pin Pin Signal I O Pin Signal I O 01 VCC 14 ISTEP 000 O 02 IINDEX 000 I 15 GND 03 VCC 16 IWDAT 000 O 04 IDSL 010 O 17 GND 05 VCC 18 IWEN 010 O 06 DSKCHG 000 I 19 GND 07 VCC 20 ITRO 000 I 08 IRDY 000 I 21 GND 09 IHMED 000 I 22 IWPR 000 I 10 IMON 000 O 23 GND 11 ILOWD 000 O 24 IRDAT 000 I 12 IDIRC 000 O 25 GND 13 GND 26 ISSEL 000 O Pin Signal I O Pin Signal I O 01 P12V1 O 03 VCC 02 GND ...

Страница 177: ...D 07 HSD05 100 I O 27 CHRDY 100 I 08 HSD10 100 I O 28 HBALE 100 O 09 HSD04 100 I O 29 N C 10 HSD11 100 I O 30 GND 11 HSD03 100 I O 31 IRQ14 100 I 12 HSD12 100 I O 32 IO16 100 I 13 HSD02 100 I O 33 HSA01 100 O 14 HSD13 100 I O 34 N C 15 HSD01 100 I O 35 HAS00 100 O 16 HSD14 100 I O 36 HAS02 100 O 17 HSD00 100 I O 37 HCD0CS 020 O 18 HSD15 100 I O 38 HDC1CS 020 O 19 GND 39 HDDLED 000 I 20 VCC 40 GND ...

Страница 178: ...D 21 PLTB2 120 O 05 PLTR0 120 O 22 GND 06 GND 23 DFLTCK 120 O 07 PLTR1 120 O 24 GND 08 GND 25 DLP 120 O 09 PLTR2 120 O 26 DFP 120 O 10 GND 27 DENAB 120 O 11 PLTG0 120 O 28 GND 12 GND 29 PNEL0 100 O 13 PLTG1 120 O 30 PNEL1 100 O 14 GND 31 GND 15 PLTG2 120 O 32 GND 16 GND 33 VCC O 17 PLTB0 120 O 34 P12V1 O Pin Signal I O Pin Signal I O 01 CRED 110 O 09 N C 02 CGREEN 110 O 10 GND 03 CBLUE 110 O 11 N ...

Страница 179: ... GND 22 SA03 101 I O 70 IRQ10 101 I 23 SA04 101 I O 71 IRQ14 101 I 24 SA05 101 I O 72 SD08 101 I O 25 SA06 101 I O 73 SD09 101 I O 26 SA07 101 I O 74 IRQ11 101 I 27 GND 75 SD10 101 I O 28 SA08 101 I O 76 SD11 101 I O 29 SA09 101 I O 77 SD12 101 I O 30 SA10 101 I O 78 IRQ12 101 I 31 SA11 101 I O 79 GND 32 SA12 101 I O 80 SD13 101 I O 33 SA13 101 I O 81 SD14 101 I O 34 SA14 101 I O 82 IRQ6 101 I 35 ...

Страница 180: ...99 GND 126 PDB02 100 I O 100 IOCS16 001 O 127 PDB03 100 I O 101 DACK2 001 O 128 PDB04 100 I O 102 DRQ6 101 I 129 PDB05 100 I O 103 DRQ5 101 I 130 PDB06 100 I O 104 DACK5 001 O 131 PDB07 100 I O 105 MEMR 001 I O 132 ACK 000 I O 106 IRQ4 101 I 133 BUSY 100 I O 107 MEMW 001 I O 134 PE 100 I O 108 IRQ7 101 I 135 SELCT 100 I O 109 GND 136 AUTFD 000 I O 110 CRED 100 O 137 ERROR 000 I O 111 CGREEN 100 O ...

Страница 181: ...0 GND 08 N C 21 LP 100 O 09 SUD0 100 O 22 GND 10 N C 23 FP 100 O 11 SUD1 100 O 24 N C 12 N C 25 GND 13 SUD2 100 O 26 N C Pin Signal I O Pin Signal I O 01 DACR0 100 I 18 GND 02 DACR1 100 I 19 DACB0 100 I 03 GND 20 DACB1 100 I 04 DACR2 100 I 21 GND 05 DACR3 100 I 22 DACB2 100 I 06 GND 23 DACB3 100 I 07 DACR4 100 I 24 GND 08 DACR5 100 I 25 DACB4 100 I 09 GND 26 DACB5 100 I 10 DACG0 100 I 27 GND 11 DA...

Страница 182: ...RQD 102 I 72 DACK1 002 O 21 LA17 102 I O 73 SA15 102 I O 22 DACK0 002 O 74 DRQ3 102 I 23 LA18 102 I O 75 SA16 102 I O 24 IRQ14 102 I 76 DACK3 002 O 25 LA19 102 I O 77 SA17 102 I O 26 IRQ15 102 I 78 IOR 002 I O 27 LA20 102 I O 79 SA18 102 I O 28 IRQ12 102 I 80 IOW 002 I O 29 LA21 102 I O 81 SA19 102 I O 30 IRQ11 102 I 82 SMER 002 O 31 LA22 102 I O 83 DMACK 122 O 32 IRQ10 102 I 84 SMEW 002 O 33 LA23...

Страница 183: ... Connector 2 Pin Table B 21 Fan I F connector pin assignment 2 pin B 22 PJ909 Int KB Connector 4 Pin Table B 22 Int KB connector pin assignment 4 pin Pin Signal I O Pin Signal I O 01 P12V1 I 04 M5V I 02 P12V1 I 05 M12V I 03 P12V2 I 06 P24V I Pin Signal I O Pin Signal I O 01 VCC 03 GND 02 VCC 04 GND Pin Signal I O Pin Signal I O 01 P12V1 I 02 GND Pin Signal I O Pin Signal I O 01 P12V1 I 02 GND Pin ...

Страница 184: ...XKBDT 100 I O 23 IDIRC 000 I 04 VCC 24 VCC 05 MUSDAT 130 I O 25 ILOWD 000 I 06 GND 26 GND 07 MUSCLK 020 I O 27 IMON 000 I 08 VCC 28 VCC 09 ISSEL 000 I 29 IHMED 000 O 10 GND 30 GND 11 IRDAT 000 O 31 IRDY 000 O 12 VCC 32 VCC 13 IWPR 000 O 33 DSKCHG 000 O 14 GND 34 GND 15 ITRO 000 O 35 IDSL 011 I 16 VCC 36 VCC 17 IWEN 011 I 37 IINDEX 000 I 18 GND 38 GND 19 IWDAT 000 I 39 GND 20 VCC 40 VCC ...

Страница 185: ...App 25 Appendix C ASCII Character Codes Table C 1 ASCII character codes ...

Страница 186: ...F 00 7F 00 10 9 0A 39 0A 39 0A 28 0A 28 0A 39 0A 39 0A 28 0A 28 80 00 80 00 11 0 0B 30 0B 30 0B 29 0B 29 0B 30 0B 30 0B 29 0B 29 81 00 81 00 12 _ 0C 2D 0C 2D 0C 5F 0C 5F 0C 2D 0C 2D 0C 5F 0C 5F 0C 1F 0C 1F 82 00 82 00 13 0D 3D 0D 3D 0D 2B 0D 2B 0D 3D 0D 3D 0D 2B 0D 2B 83 00 83 00 15 Back space 0E 08 0E 08 0E 08 0E 08 0E 08 0E 08 0E 08 0E 08 0E 7F 0E 7F 0E 00 16 Tab 0F 09 0F 09 0F 00 0F 00 0F 09 0F...

Страница 187: ... 00 33 D 20 64 20 64 20 44 20 44 20 44 20 44 20 64 20 64 20 04 20 04 20 00 20 00 34 F 21 66 21 66 21 46 21 46 21 46 21 46 21 66 21 66 21 06 21 06 21 00 21 00 35 G 22 67 22 67 22 47 22 47 22 47 22 47 22 67 22 67 22 07 22 07 22 00 22 00 36 H 23 68 23 68 23 48 23 48 23 48 23 48 23 68 23 68 23 08 23 08 23 00 23 00 37 J 24 6A 24 6A 24 4A 24 4A 24 4A 24 4A 24 6A 24 6A 24 0A 24 0A 24 00 24 00 38 K 25 6B ...

Страница 188: ...F 35 3F 35 3F 35 2F 35 2F 35 3F 35 3F 35 00 57 Shift R 58 Ctrl L 60 Alt L 61 Space 30 20 39 20 39 20 39 20 39 20 39 20 39 20 39 20 39 20 39 20 39 20 39 20 62 Alt Gr 75 Ins 52 00 52 E0 52 00 52 E0 52 00 52 E0 52 00 52 E0 92 E0 A2 00 76 Del 53 00 53 E0 53 00 53 E0 53 00 53 E0 53 00 53 E0 93 E0 A3 00 79 4B 00 4B E0 4B 00 4B E0 4B 00 4B E0 4B 00 4B E0 73 00 73 E0 9B 00 80 Home 47 00 47 E0 47 00 47 E0 ...

Страница 189: ...00 57 00 3E 00 3E 00 57 00 57 00 61 00 61 00 6B 00 6B 00 116 F5 3F 00 3F 00 58 00 58 00 3F 00 3F 00 58 00 58 00 62 00 62 00 6C 00 6C 00 117 F6 40 00 40 00 59 00 59 00 40 00 40 00 59 00 59 00 63 00 63 00 6D 00 6D 00 118 F7 41 00 41 00 5A 00 5A 00 41 00 41 00 5A 00 5A 00 64 00 64 00 6E 00 6E 00 119 F8 42 00 42 00 5B 00 5B 00 42 00 42 00 5B 00 5B 00 65 00 65 00 6F 00 6F 00 120 F9 43 00 43 00 5C 00 5C...

Страница 190: ...App 30 Appendix E KeyboardLayouts E 1 USA Keyboard Figure E 1 USA keyboard E 2 UK Keyboard Figure E 2 UK keyboard ...

Страница 191: ...App 31 E 3 German Keyboard Figure E 3 German keyboard E 4 French Keyboard Figure E 4 French keyboard ...

Страница 192: ...App 32 E 5 Spanish and Latin American Keyboard Figure E 5 Spanish and Latin American keyboard E 6 Italian Keyboard Figure E 6 Italian keyboard ...

Страница 193: ...App 33 E 7 Scandinavian DK NO SW Keyboard Figure E 7 Scandinavian DK NO SW keyboard E 8 Swiss French German Keyboard Figure E 8 Swiss French German keyboard ...

Страница 194: ...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 ...

Страница 195: ...App 35 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 ...

Страница 196: ...T6400 NOTES ...

Страница 197: ...Inside Back Cover Inside Back Cover Replace with blank page Replace with blank page ...

Страница 198: ...Toshiba America Information Systems Inc Computer Systems Division 9740 Irvine Boulevard P O Box 19724 Irvine CA 92713 9724 ...

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