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2-12

2.4

System Board Troubleshooting
Procedures

To determine if the system board is defective or not functioning properly, perform the following
procedures beginning with Procedure 1 and continuing with the other procedures as instructed.

Procedure 1: Message Check

Procedure 2: Printer Port LED Check

Procedure 3: Diagnostic Test Program Execution Check

Procedure 1

Message Check

When the power is turned on, the system performs the Initial Reliability Test (IRT) installed in the
BIOS ROM. The IRT tests each IC on the system board and initializes it.

If an error message is displayed, perform Check 1. If not, go to Procedure 2. If MS-DOS is prop-
erly loaded, go to Procedure 3.

Check 1

If the following error message is displayed on the screen for one second, the external
FDD is not connected, even though the external FDD/PRT option in the SETUP pro-
gram is set to FDD A. Set the external FDD/PRT option to FDD B or PRT, or connect
the external FDD and restart the system. If any other error message appears, perform
Check 2.

*** FDD 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 preserved 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 default setting. If error message (b) appears often
when the power is turned on, replace the RTC battery. If any other error message is
displayed, perform Check 3.

(a)

*** Error in CMOS. Bad HDD type ***

Check system. Then press any key ......

(b)

*** Error in CMOS. Bad battery ***

Check system. Then press any key ......

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Summary of Contents for T-Series T3300sl

Page 1: ...1 1 Chapter 1 Hardware Overview ...

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Page 3: ...s Table 1 1 3 5 inch FDD specifications 1 11 Table 1 2 2 5 inch HDD specifications 1 12 Table 1 3 Sidelit LCD specifications 1 14 Table 1 4 FL inverter board specifications 1 15 Table 1 5 Power supply board output rating 1 16 Figures Figure 1 1 T3300SL personal computer 1 7 Figure 1 2 System unit configuration 1 7 Figure 1 3 Block diagram 1 8 Figure 1 4 3 5 inch FDD 1 11 Figure 1 5 2 5 inch HDD 1 ...

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Page 5: ... of 320 x 200 and supports the High Resolution Graphics Subsystem HRGS including VGA functions The 3 5 inch internal Floppy Disk Drive FDD supports both 1 44MB Double sided High density Double track 2HD and 720KB Double sided Double density Double track 2DD floppy disk The integrated 2 5 inch 80 or 120MB Hard Disk Drive HDD provides nonvolatile storage for software and data An 82 84 key keyboard h...

Page 6: ...ace with optional parallel devices The Toshiba AutoResume feature stores the T3300SL s data in backup RAM when the power is turned off The Real Time Clock RTC IC chip and battery continuously update the date and time and keep the system configuration even when the T3300SL power is off ...

Page 7: ...guration is shown in Figure 1 2 Figure 1 1 T3300SL personal computer Figure 1 2 System unit configuration Sub Battery Power Supply Board Battery Pack HDD Keyboard LCD RTC Battery FDD PJ5 PJ10 PJ11 PJ9 LED PJ2 PJ19 PJ4 AC Adapter PJ21 PJ13 PJ12 Display Switch PJ15 PS 2 Mouse ...

Page 8: ...1 8 1 2 The System Unit Block Diagram Figure 1 3 is a block diagram of T3300SL system unit Figure 1 3 Block diagram ...

Page 9: ...es one SIO One Real Time Clock RTC 146818AF Super Integration SI T9920 which stores the following components One Floppy Disk Controller FDC TC8565 One Variable Frequency Oscillator VFO TC8568 Keyboard Controller KBC M37452M4 Power Supply Controller PSC U47C660 Memory Standard RAM 2MB BIOS ROM 128KB 96KB are used BIOS ROM contains the Initial Reliability Test IRT the system s Basic Input Output Sys...

Page 10: ...56MHz OSC X3 is used for the COM 14 31818MHz OSC X4 is used for the KBC 24MHz OSC X5 is used for the FDC and VFO 32 768KHz OSC X6 is used for the RTC 44 9MHz OSC X7 28 322MHz OSC X8 and 25 175MHz OSC X9 are used for the video See Appendix A for the locations of the oscillators on the system board ...

Page 11: ... the FDD are described in Table 1 1 Figure 1 4 3 5 inch FDD Table 1 1 3 5 inch FDD specifications Item 2 Mbyte mode 1 Mbyte mode Storage capacity Kbyte Unformatted Formatted 2 000 1 440 1 000 720 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 rp...

Page 12: ... inch HDD Table 1 2 2 5 inch HDD specifications Run Length Limited Item 80MB 120MB JDE2085M MK2024FC MK2124FC Storage capacity Formatted MB 85 68 86 0 130 1 Number of disks 2 2 2 Data heads 4 4 4 Data surfaces 4 4 4 Tracks per surface 791 2 977 934 Sectors per track 35 1 43 3 55 1 Bytes per sector 512 512 512 Access time ms Track to track Average Maximum 9 25 47 5 19 40 5 17 36 Rotation speed rpm ...

Page 13: ...an keyboard is mounted on the system unit The keyboard is connected to the keyboard controller on the system board through a 19 pin flat cable The key board is shown in Figure 1 6 See Appendix E for optional keyboard configurations Figure 1 6 Keyboard ...

Page 14: ...ves vertical and horizontal synchronizing signals 8 bit data signals 4 bit upper data signal 4 bit lower data signal and shift clock for data transmission from the PVGA1F Video Controller All signals are CMOS level compatible The sidelit LCD is shown in Figure 1 7 Specifications for the LCD are described in Table 1 3 Figure 1 7 Sidelit LCD Table 1 3 Sidelit LCD specifications Item Specifications N...

Page 15: ...nate the LCD s fluores cent lamp The specifications for the FL inverter board are described in Table 1 4 Table 1 4 FL inverter board specifications Item Specifications Input Voltage VDC 11 26 Power W 2 8 Max Output Voltage VAC 1100 r m s Current mA 5 5 r m s Frequency KHz 44 Bounds of current mA 2 5 5 5 ...

Page 16: ...s the battery charging system on and off and detects a fully charged battery Determines if the power can be turned on and off Provides more accurate detection of a low battery Calculates the remaining battery capacity The power supply board is shown in Figure 1 8 and the output ratings are specified in Table 1 5 Figure 1 8 Power supply board Table 1 5 Power supply board output rating Item DC volta...

Page 17: ...2 1 Chapter 2 TroubleshootingProcedures ...

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Page 19: ...oubleshooting Procedures 2 23 Procedure 1 Partition Check 2 23 Procedure 2 Message Check 2 24 Procedure 3 Format Check 2 25 Procedure 4 Diagnostic Test Program Execution Check 2 26 2 7 Keyboard Troubleshooting Procedures 2 27 Procedure 1 Diagnostic Test Program Execution Check 2 27 Procedure 2 Connector and Replacement Check 2 27 2 8 Display Troubleshooting Procedures 2 28 Procedure 1 Brightness a...

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Page 21: ...yboard Display The following tools are necessary for implementing the T3300SL troubleshooting procedures T3300SL Diagnostics Disk Phillips head screwdriver 2mm Toshiba MS DOS system disk 2DD or 2HD formatted work disk for the floppy disk drive testing Cleaning disk kit for the floppy disk drive troubleshooting Printer port LED RS 232 C wraparound connector Printer wraparound connector Multimeter E...

Page 22: ... printer port wraparound board F31PRT then turn the POWER switch on The computer will override the password function by erasing the current password Figure 2 1 Troubleshooting flowchart Does the MEMORY TEST XXXKB message proceed from 0KB to 640KB Perform System Board TroubleshootingProceduresin Section 2 4 NO Is the MEMORY TEST XXXXKB messagedisplayed PerformDisplayTroubleshooting Procedures in Se...

Page 23: ... the Diagnostic Program does not detect any errors the problem may be an intermittent one Execute the Running Test program several times to isolate the problem After confirming which diagnostic test detected an error by checking the Log Utilities function perform the appropriate troubleshooting procedures as follows 1 If an error is detected on the system test memory test display test ASYNC test p...

Page 24: ...d and supplying power The indicator labeled Battery glows amber when the AC adapter is charging the battery pack If the Battery indicator does not light the AC adapter is not supplying power to the T3300SL or the computer is turned off When the Battery indicator is red the AC adapter is connected and supplying power to the T3300SL If the indicator is flashing red the AC adapter s voltage supply is...

Page 25: ...r blinks at random the AC adapter or charging circuit may be damaged In this case replace the AC adapter with a new one Table 2 1 Power supply error statuses Bit 0 Bit 1 Bit 2 Bit 3 1 0 1 0 Battery ON OFF 2s 1s 0 5s 1s 0 5s 0 5s 0 5s 0 5s Time Status Meaning 1h Over voltage of AC adapter output voltage more than 18V 5 2h Abnormal temperature in the system less than 20 C or more than 70 C 3h Abnorm...

Page 26: ...re 3 Check 5 If the Battery indicator displays error status 3h 7h 8h 9h Ah or Bh perform Procedure 3 Procedure 3 Power Supply Board Connection Check The power supply board is connected to other components by various cables These cable connec tors can become disconnected from the power supply board thus causing the T3300SL to malfunc tion To check these connections it is necessary to disassemble th...

Page 27: ...ition 1 or 2 remains after replacement of the indicated unit then replace the power supply board If condition 3 remains after replacing the power supply board then replace the system board Condition Battery Indicator Replacement Unit 1 1h 4h 5h Eh Fh AC adapter 2 6h Dh Battery pack 3 2h 3h 7h 8h 9h Ah Bh Power supply board ...

Page 28: ...ond the external FDD is not connected even though the external FDD PRT option in the SETUP pro gram is set to FDD A Set the external FDD PRT option to FDD B or PRT or connect the external FDD and restart the system If any other error message appears perform Check 2 FDD A is not installed Check 2 If one of the following error messages is displayed on the screen press any key as the message instruct...

Page 29: ...the message instructs The error message a appears when data stored in RAM under the resume function is lost because the battery has discharged The error message b appears when an error is detected during the read test of the hard RAM or the data in the hard RAM is lost because the battery has discharged If any other message appears perform Check 4 a WARNING RESUME FAILURE PRESS ANY KEY TO CONTINUE...

Page 30: ...shooting Proce dures in Section 2 6 If error message w is displayed go to the FDD Troubleshooting Procedures in Section 2 5 If none of these error message appear go to Procedure 2 a CPU ERROR b SYSTEM ROM CHECK SUM ERROR c PIT ERROR d MEMORY REFRESH ERROR e TIMER CH 2 OUT ERROR f FIRST 64KB MEMORY ERROR g FIRST 64KB MEMORY PARITY ERROR h VRAM ERROR i KBC ERROR j SYSTEM MEMORY ERROR k SYSTEM MEMORY...

Page 31: ...erform this check the external FDD PRT option in the SETUP program must be set to PRT Figure 2 2 Printer port LED To use the printer port LED follow these steps 1 Turn off the T3300SL s power 2 Plug the printer port LED into the T3300SL s PRT FDD connector 3 Turn on the T3300SL s power 4 Read the final LED status from left to right as you are facing the back of the computer Figure 2 3 Reading the ...

Page 32: ...5 Convert the status from binary to hexadecimal notation 6 If the final status is FFh normal status go to Procedure 3 7 If the final status matches any of the test status values in Table 2 2 perform Check 1 ...

Page 33: ...C test This test is not performed here but in test No 10 13h RTC initialization Checks the bad battery status and bad checksum status Initializes the control registers A and B 14h PIC initialization Initializes the PIC 1 and 2 15h Display initialization Checks if the system has MDA and CGA or not and then initializes them Initializes the extended display I O C0003h call VRAM test of the MDA CGA an...

Page 34: ...E If an error condition is detected by the IRT test the printer port LED displays an error code after the IRT test finishes For example when the printer port LED displays 16h and halts the IRT test has already completed the KBC test In this instance the IRT indicates an error with the system memory test Error codes marked with an asterisk indicate that the IRT test aborts after the printer port LE...

Page 35: ...tic 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 an NDP is installed If an error is detected during these tests replace the system board with a new one ...

Page 36: ...e FDD heads using the cleaning kit If the FDD still does not function properly after cleaning go to Procedure 3 If the test program cannot be executed go to Procedure 2 Procedure 2 Internal and External FDD Check The floppy disk controller on the computer s system board controls the internal and external FDDs To determine if either the system board or the internal FDD is defective check the follow...

Page 37: ...y disk in the FDD 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 statuses Check 1 If the following message is displayed disable the write protect tab on the floppy disk If any other message appears perform Check 2 Write protected Code Status 01h Bad command...

Page 38: ...3300SL following the steps described 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 perform Procedure 3 again If the FDD is still not functioning properly perform Check 2 Check 2 The FDD or its cable may be defective or...

Page 39: ...iba MS DOS manual for more information about how to perform the BACKUP command Procedure 1 Partition Check Insert the Toshiba MS DOS system disk and turn on the computer Then perform the following 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 ...

Page 40: ...seconds this message will disappear Check 2 If either of the following messages appear perform Procedure 3 If the following messages do not appear perform Check 3 Insert system disk in drive Press any key when ready or Non System disk or disk error Replace and press any key when ready Check 3 Using the Toshiba MS DOS system disk install a system program on the hard disk using the SYS command If th...

Page 41: ...d disk using the FORMAT 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 an error message appears 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 T3300SL Diagnostic Disk format the HDD with a low level format option Refer to Chapt...

Page 42: ...s are described in Table 2 4 If an error code is not generated the HDD is operating properly Table 2 4 Hard disk drive error codes and statuses 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 Code Status 01h Bad command 02h Bad address mark 04h Record not found 05h HDC not reset...

Page 43: ...cedure 2 If an error does not occur the keyboard is functioning prop erly Procedure 2 Connector and Replacement Check The keyboard is connected to the system board by a 19 pin flat cable This cable may be discon nected or damaged Disassemble the T3300SL as described in Chapter 4 Replacement Proce dures and perform the following checks Check 1 Make sure the keyboard cable is not damaged and is conn...

Page 44: ...ay screen If the brightness or contrast does not change when you adjust them go to Procedure 2 Procedure 2 External CRT Check Connect the external CRT to T3300SL s RGB port then cold boot the computer The computer automatically detects the external CRT If the external CRT works correctly the internal LCD display may be damaged Go to Procedure 4 If the external CRT appears to have the same problem ...

Page 45: ...nected firmly reconnect them and perform Procedures 1 and 2 again If the problem still exists perform Procedure 5 Procedure 5 Replacement Check The FL inverter board LCD module and system board are connected to the display circuits Any of these components may be damaged Refer to Chapter 4 Replacement Procedures for instruc tions on how to disassemble the T3300SL and then perform the following chec...

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Page 47: ...3 1 Chapter 3 Tests and Diagnostics ...

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Page 49: ...ard Disk Format 3 37 3 16 1 Function Description 3 37 3 16 2 Operations 3 38 3 17 Head Cleaning 3 41 3 17 1 Function Description 3 41 3 17 2 Operations 3 41 3 18 Log Utilities 3 42 3 18 1 Program Description 3 42 3 18 2 Operations 3 42 3 19 Running Test 3 44 3 19 1 Function Description 3 44 3 19 2 Operations 3 44 3 20 Floppy Disk Drive Utilities 3 45 3 20 1 Function Description 3 45 3 20 2 Operati...

Page 50: ...mes 3 9 Table 3 2 T3300SL hardware bit status 3 11 Table 3 3 Error codes and error status names 3 33 Table 3 4 HDC status register contents 3 35 Table 3 5 HDC error register contents 3 36 Table 3 6 Hard disk formatting sequence 3 37 ...

Page 51: ...nal tests These are all located within the Diagnostic Test function of the Service Program Module 1 SYSTEM TEST 2 MEMORY TEST 3 KEYBOARD TEST 4 DISPLAY TEST 5 FLOPPY DISK TEST 6 PRINTER TEST 7 ASYNC TEST 8 HARD DISK TEST 9 REAL TIMER TEST 10 NDP TEST To execute the T3300SL Diagnostic Program you will need the following equipment to perform some of the tests T3300SL Diagnostic Disk Formatted workin...

Page 52: ... A type TESTCE33 and press Enter The DIAGNOSTICS MENU will appear as shown below TOSHIBA personal computer T3300SL DIAGNOSTICS version x xx c copyright TOSHIBA Corp 1991 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 PRESS 0 9 KEY NOTE To terminate a subtest in progress press Ctr...

Page 53: ...s 1 through 10 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 the display 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 ...

Page 54: ...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 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...

Page 55: ... 82 84 02 Pressed key code display 4 DISPLAY 01 VRAM read write 02 Character attributes 03 Character set 04 80 25 30 Character display 05 300 200 Graphics display 06 640 200 Graphics display 07 640 350 400 480 Graphics display 08 Display page 09 H pattern display Border color 10 LED DAC pallet 5 FDD 01 Sequential read 02 Sequential read write 03 Random address data 04 Write specified address 05 Re...

Page 56: ...ial read 02 Address uniqueness 03 Random address data 04 Cross talk peak shift 05 Write read compare CE 06 Write specified address 07 Read specified address 08 ECC circuit 09 Sequential write 10 W R C specified address 9 REAL TIMER 01 Real time 02 Backup memory 03 Real time carry 10 NDP 01 NDP test ...

Page 57: ...o gram runs for several minutes before returning you to the subtest menu This subtest reads and displays the T3300SL s hardware status as shown below 76543210 H W status 10001000 Bit7 Bit6 CPU clock 25MHZ Bit5 Notch signal 2HD Bit4 FDD type 2MB Bit3 Bit2 Drive A B Ext B Bit1 External FDD OFF Bit0 Internal FDD 2HD Table 3 2 describes the hardware bit status for each bit tested Pressing Enter return...

Page 58: ...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 640KB This data is then read from conventional memory and compared to the original data N...

Page 59: ...CFFFFh The data is then read and compared to the original data Subtest 07 Hard RAM NOTE To execute this subtest Hard RAM must be set up on the system This subtest writes a word unit of constant data 0000h 5555h AAAAh and FFFFh to memory from address C8000h to CFFFFh The data is then read and compared to the original data This subtest also executes the paging test for page data Subtest 08 Cache Mem...

Page 60: ... and press Enter Subtest 01 Pressed Key Display 82 84 NOTE The Num Lock key 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 asterisk character Holding a key down enables the auto repeat function which causes the key s display character to blink KEYB...

Page 61: ...elow The Ins Caps Lock Num Lock Scroll Lock Alt Ctrl Left Shift and Right Shift keys are displayed in reverse video mode 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 ...

Page 62: ...est displays the following 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 CHARACTER ATTRI...

Page 63: ...ubtest 03 Character Set In this subtest the character set addressed 00h to FFh is displayed in the 40x25 character mode as shown below PRESS ENTER KEY 320 200 GRAPHICS DISPLAY 13 PRESS ENTER KEY BLACK BLUE GREEN CYAN RED MAGENTA BROWN WHITE GRAY LIGHT BLUE LIGHT GREEN LIGHT CYAN LIGHT RED LIGHT MAGENTA YELLOW INTENSE WHITE ...

Page 64: ...PQRSTUVWXYZ _ abcdefghijklmnopqrs 0123456789 ABCDEFGHIJKLMNOPQRSTUVWXYZ _ abcdefghijklmnopqrst 0123456789 ABCDEFGHIJKLMNOPQRSTUVWXYZ _ abcdefghijklmnopqrstu 0123456789 ABCDEFGHIJKLMNOPQRSTUVWXYZ _ abcdefghijklmnopqrstuv 0123456789 ABCDEFGHIJKLMNOPQRSTUVWXYZ _ abcdefghijklmnopqrstuvw 0123456789 ABCDEFGHIJKLMNOPQRSTUVWXYZ _ abcdefghijklmnopqrstuvwx 0123456789 ABCDEFGHIJKLMNOPQRSTUVWXYZ _ abcdefghijk...

Page 65: ...dots and all dots blocks in the 640x200 dots graphics mode 6 and E as shown below Subtest 07 640x350 400 480 Graphics Display Mode 10 12 and 74 This subtest displays the even dots odd dots and all dots blocks in the 640x350 and 640x480 dots graphics mode 10 12 and 74 PDC mode only as shown below 640 200 GRAPHICS DISPLAY X EVEN DOTS ODD DOTS ALL DOTS DRIVEN DRIVEN DRIVEN PRESS ENTER KEY ...

Page 66: ...HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH...

Page 67: ... is then read and compared to the original data Speed Caps Num Overlay LED test 1 Press Fn Pgdn key Speed red 2 Press Fn Pgup key Speed green 3 Press Caps Lock key Caps on off 4 Press Num lock key Num on off 3 Press Fn key Overlay on off PRESS ENTER KEY Press Enter to display the following message Processor latch test Processor latchtest 1 256 times 2 endless ...

Page 68: ...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 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...

Page 69: ...OSTIC 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 70: ...ified by the xxxxh number The T3300SL 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 ABCDEFGHIJKL...

Page 71: ... wiring dia gram 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 LINES SHOWS NORMAL PRINT 2 THIS LINE SHOWS DOUBLE WIDTH PRINT 3 THIS LINE SHOWS COMPRESSED PRINT 4 THIS LINE SHOWS EMPHASIZED PRINT 5 THIS LINE SHOWS DOUBLE STRIKE PRINT 6 ALL CHARACTERS PRINT 0123456789...

Page 72: ...l 3 xxxxh Select the channel number 1 3 The serial I O port address is specified by the xxxxh number The T3300SL 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...

Page 73: ...above This subtest receives the data from the send side then returns the data Subtest 05 Card Modem Loopback 2400 BPS 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 por...

Page 74: ...ch 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 HDC F W error retry 1 ye...

Page 75: ...ll the tracks on the HDD starting at track 0 When all the tracks on the HDD have been read the test starts at the maximum track and reads the tracks on the HDD sequentially back to track 0 Subtest 02 Address Uniqueness This subtest writes unique address data to each sector of the HDD track by track The data written to each sector is then read and compared with the original data There are three way...

Page 76: ...7 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 subtest writes specified 2 byte data to all of the cylinders on the HDD Subtest 10 W R C Specified Address Th...

Page 77: ...ect 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 the display returns 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 through 80h Writes 1 bit of off data to ad...

Page 78: ...est NOTE To execute this test a math co processor NDP must be mounted on the system board Subtest 01 NDP test This subtest checks the following functions of the numeric data processor Control word Status word Bus Addition Multiplication ...

Page 79: ...e 14 Memory Read Write Error 1B H RAM Mapping Error 1C H RAM Read Write Error 20 No PCMCIA Card 2A PCMCIA Card Different 2B PCMCIA Mapping Error 2C PCMCIA Write Read Error DD Cache Memory Error 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 Ti...

Page 80: ...O CARRIER Card Modem 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 Initialized 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 NDP 01 No CO PROCESSO...

Page 81: ...status register and error register are described in Tables 3 4 and 3 5 Table 3 4 HDC status register contents 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 The hard disk drive...

Page 82: ...ror 1 Uncorrectable data error has been detected 5 Not used 4 IDNF Identification 0 Other 1 There was no ID field in the requested sector 3 Not used 2 ABRT Abort 0 Other 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 command 0 Not used ...

Page 83: ...executed Before executing the function 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 16 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 6 below NOTE Before executing the All track FORMAT option exe...

Page 84: ...m is automatically terminated 3 16 2 Operations CAUTION After the HDD has been formatted execute the Toshiba MS DOS FDISK com mand to partition the HDD Next execute the Toshiba MS DOS FORMAT command Refer to the Toshiba MS DOS Manual for more information about using these commands 1 Select the Hard Disk Format function by typing 2 and pressing Enter from the DIAGNOS TICS MENU The following message...

Page 85: ...s 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 checked 6 After formatting the hard disk execute the verify check program by pressing Enter When the verify check program is completed the following message will ap...

Page 86: ... 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 1 1 2 2 2 Select a drive number and press Enter The following message will appear Interleave number 1 1 8 3 Select an interleave number ...

Page 87: ...unction by typing 4 from the DIAGNOSTICS MENU and press ing 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 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...

Page 88: ...s ADDR 7 Write data WD 8 Read data RD 9 HDC status HSTS 10 Error status name ERROR STATUS NAME 3 18 2 Operations 1 Select the Log Utilities function by typing 5 and pressing Enter from the DIAGNOSTICS MENU Error information will now be logged into RAM or on the floppy disk The error information is displayed in the following format XXXXX ERRORS CNT TS NAME PASS STS ADDR WD RD HSTS ERROR STATUS NAME...

Page 89: ...ay to the previous page 3 Returns to the DIAGNOSTICS MENU 4 Erases all error log information in RAM 5 Outputs the error log information to a printer 6 Reads the log information from a floppy disk 7 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 this is not added to the error count ...

Page 90: ...will be generated during the FDD testing 1 Remove the Diagnostic Disk from the floppy disk drive and insert the work disk 2 Select the Running Test by typing 6 from the DIAGNOSTICS MENU and pressing Enter The following message will be displayed Printer wrap around test Y N Selecting Yes executes the printer wraparound test A printer wraparound connector must be connected to the PRT FDD port on the...

Page 91: ...ode 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 bytes 18 sectors track 2 COPY This option copies a source floppy disk to a target floppy disk 3 DUMP This option displays the contents of the floppy disk and the designated sectors of the hard disk on the dis...

Page 92: ...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 5 If you select Yes the display will repeat the message in step 3 above If you select No the display returns t...

Page 93: ...2 No 5 To copy another disk type 1 and the message in step 1 will be displayed again If you type 2 the display returns to the DIAGNOSTICS MENU 4 DUMP option 1 When DUMP is selected the following message appears DIAGNOSTICS HARD DISK FLOPPY DISK DUMP Vx xx Format type select 0 2DD 2DD 1 2D 2D 2 2D 2HD 3 2HD 2HD 2 Select a format type number and then type the number If 3 is selected the display will...

Page 94: ... The following message will appear Sector number 8 Type the sector number and press Enter The specified dump list will be displayed 9 After a dump list appears on the screen the following message will appear Press number key 1 up 2 down 3 end 1 Displays the next sector dump 2 Displays a previous sector dump 3 Displays the following message Another dump 1 Yes 2 No 10 If you type 1 the display will ...

Page 95: ...er ports Co processor Extended memory size 3 21 2 Operations Select the System Configuration function by typing 8 from the DIAGNOSTICS MENU and press ing Enter A system configuration screen similar to the one shown below will be displayed SYSTEM CONFIGURATION BIOS ROM VERSION Vx xx 640KB MEMORY COLOR GRAPH 80 Column 1 FLOPPY DISK DRIVE S 1 ASYNC ADAPTER 1 HARD DISK DRIVE S 1 PRINTER ADAPTER 0 MATH...

Page 96: ...hadow BIOS ROM Extended memory Hard RAM DISPLAY Display adapter LCD display mode LCD gray scale level HARD DISK Capacity POWER ON PASSWORD TIME DATE COM PRT FDD Serial port Card modem External FDD PRT Printer port type OTHERS Resume mode Battery Save Mode Processing speed Cache Popup Speaker Battery alarm Panel power on off Alarm power on ...

Page 97: ... 5 25 inch diskette drive Press ESC if the setup options displayed accurately reflect your hardware configuration and no changes are necessary The following message is displayed Exit Without Saving Y N Press Y and the system returns to the DIAGNOSTICS MENU T3300SL SETUP Total 2048KB Base 640KB Shadow BIOS ROM 128KB Extended 1280KB Hard RAM 0KB Capacity 80MB Serial Port COM1 IRQ4 3F8H Card Modem CO...

Page 98: ...set 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 se lected for change 1 Use the arrow keys or Enter to move the cursor between options You can also select each option group by pressing the character on the keyboard corresponding to the first character of the heading for each opti...

Page 99: ... will now create the disk When the procedure is com pleted the following message is displayed Remove the Password Service Disk and Press any key Remove the Password Service Disk and press any key The diskette should be stored in a safe place 9 The new SETUP values are now recorded into CMOS memory and the system reboots 3 22 4 SETUP Option Descriptions The SETUP screen is divided into functionally...

Page 100: ... size of the extended memory installed in the T3300SL DISPLAY This group of options helps you configure the T3300SL s display DISPLAY ADAPTER Use this option to choose the display adapter VGA compatible Chooses the internal adapter for the VGA display This is the default setting Not used Chooses an external adapter installed in the Desk Station IV LCD DISPLAY MODE Use this option to set the T3300S...

Page 101: ...ack background with 32 levels of gray HARD DISK This option displays the size and type of hard disk installed in the T3300SL POWER ON PASSWORD This option allows you to enable or disable the password required for the T3300SL to power on and allow access to the C prompt If the Power On Password option has not been enabled the SETUP function displays the following message Not Registered HOW TO ENABL...

Page 102: ...ss Enter If the two character strings match the password is registered and the display changes to Registered If they do not match the following message appears along with a beep indicating you must repeat steps 1 through 4 Entry Error HOW TO DISABLE THE PASSWORD To disable the Power On Password option follow these steps 1 Highlight the Registered setting in the Power On Password option 2 Press the...

Page 103: ...nch 2DD floppy disk any data on the disk will be erased and follow the steps below 1 Enable the Power On Password option as described above 2 Insert the 3 5 inch 2DD floppy disk into drive A 3 Press End and the following message appears Save settings and reboot Y N Insert Password Service Disk if necessary 4 Press Y The computer writes the password data to the floppy disk When the procedure is com...

Page 104: ...ther COM1 or COM2 for the card modem port COM1 IRQ4 3F8h Assigns COM1 to the card modem port COM2 IRQ3 2F8h Assigns COM2 to the card modem port This is the default setting Not Used Disables the card modem port You can now install an op tional card in one of the expansion slots without any conflict with the COM level of the card modem port NOTE You can assign a COM level only once For example the S...

Page 105: ...floppy disk drive this option lets you change the printer port from output only the default to receive input as well as output Do not change this setting if you re connecting the T3300SL to a printer You would change this option only if you re connecting the computer to a device that requires a bidirectional parallel signal Output Activates unidirectional operation This is the default setting Bi d...

Page 106: ...tting Selecting this option allows you to choose the available battery save values on the BATTERY SAVE OPTIONS window PROCESSING SPEED This option determines the operating speed of the processor Unless your software runs better under a slower speed set this option to the default High Selects the processor speed of 25MHz with optimized routines to maximize performance This is the default setting No...

Page 107: ...atically turns off the computer when the T3300SL s display panel is closed and then turns on the computer when the display panel is opened This option also appears in the Pop up Window When the system is set to boot mode this function is automatically disabled Enable Enables the system automatic power off when the display panel is closed This is the default setting Disable Disables the system auto...

Page 108: ... is the default setting Disable Disables the CPU sleep mode HDD AUTO OFF Use this option to disable or set the duration of the HDD automatic power off function When the AC adapter is connected to the computer and a wall outlet this function is auto matically disabled Disable Disables the HDD automatic power off This is the default setting xx Min Automatically turns off power to the hard disk drive...

Page 109: ...the sidelit LCD display s fluorescent lamp This value is not displayed if the AC adapter is connected SYSTEM AUTO OFF Use this option to disable or set the duration of the system automatic power off function When the AC adapter is connected to the computer and a wall outlet this function is auto matically disabled Disable Disables the system automatic power off xx Min Automatically turns off power...

Page 110: ...3 64 This page intentionally left blank ...

Page 111: ...4 1 Chapter 4 Replacement Procedures ...

Page 112: ...4 2 This page intentionally left blank ...

Page 113: ...ck Case 4 19 4 6 2 Installing the Hard Disk Drive and Battery Pack Case 4 21 4 7 Communication Ports Bracket 4 22 4 7 1 Removing the Communication Ports Bracket 4 22 4 7 2 Installing the Communication Ports Bracket 4 24 4 8 System Board LED Board and Floppy Disk Drive 4 26 4 8 1 Removing the System Board LED Board and Floppy Disk Drive 4 26 4 8 2 Installing the System Board LED Board and Floppy Di...

Page 114: ...ut off switch and display cable routing 4 24 Figure 4 22 Removing the top system board screws 4 26 Figure 4 23 Disconnecting the cables 4 27 Figure 4 24 Removing the LED board 4 27 Figure 4 25 Removing the cables connected to the system board 4 28 Figure 4 26 Removing the floppy disk drive 4 28 Figure 4 27 Removing the bottom system board screws 4 29 Figure 4 28 Applying the tape on the system boa...

Page 115: ...es on the chart to the FRU you are removing Battery Pack LCD Module FL Inverter Board Memory Card and Card Modem Bottom Cover Battery Terminal Assembly Hard Disk Drive and Battery Pack Assembly Communication Ports LCD Display Cables System Board Top Half LED Board Floppy Disk Drive Bottom Half Power Supply Board Keyboard CAUTION The T3300SL is assembled with zinc coated screws and nickel chrome pl...

Page 116: ...ns that are not necessary and use only the described procedures for disassembling and installing FRUs in the T3300SL 6 After removing parts from the computer place them in a safe place away from the com puter so they will not be damaged and do not interfere with your work 7 You will remove and replace many screws when you disassemble the T3300SL When you remove screws make sure they are placed in ...

Page 117: ...embly Procedures After you have disassembled the T3300SL and fixed or replaced the FRU you will need to reas semble the T3300SL While assembling the T3300SL remember the following general points Take your time and make sure you follow the reassembly instructions closely Most problems arise when you get in a hurry to reassemble the T3300SL Make sure all cables and connectors are securely fastened T...

Page 118: ...ead screwdriver to remove and replace screws One 3mm Phillips head screwdriver to remove and replace the ground screw Tweezers to lift out screws that you cannot grasp with your fingers One System Board Support Block 85mm x 120mm x 300mm 3 h x 4 d x 12 w This block must be composed of anti static foam One LCD Support Block 30mm x 200mm x 300mm 1 h x 8 d x 12 w This block must be composed of anti s...

Page 119: ... and all external cables connected to the T3300SL 2 Facing the right side of the computer push up and hold the battery cover release lever as you slide the battery pack cover toward the back of the computer Remove the battery pack cover to expose the battery pack Figure 4 1 Figure 4 1 Removing the battery pack cover 3 Firmly grasp the battery pack pull tab and pull the battery pack out far enough ...

Page 120: ...damaging the T3300SL and the battery pack 1 Make sure the arrow on the battery pack is pointing up Then align the battery pack with the battery pack slot in the T3300SL 2 Slide the battery pack into the battery slot until it is flush with the side of the T3300SL case Figure 4 2 3 Place the battery pack cover in place and secure its latch Figure 4 1 ...

Page 121: ...he AC adapter and all external cables connected to the T3300SL 2 Remove the battery pack as instructed in Section 4 2 3 Open the display panel if it is closed 4 Turn the computer so its left side is facing you 5 Remove the expansion memory card slot cover to expose the memory card slot Figure 4 3 Figure 4 3 Removing the memory card slot cover ...

Page 122: ... Removing the memory card 7 Turn the computer so its right side is facing you 8 Remove the card modem slot cover to expose the card modem slot Figure 4 5 Figure 4 5 Removing the card modem slot cover 9 Grasp the card modem pull tab and pull it out of the computer until you can easily grasp the card modem 10 Grasp the card modem and pull it out of the T3300SL Slide the pull tab back into the T3300S...

Page 123: ...he T3300SL follow the instructions in Section 4 8 Communication Ports Bracket After step 7 in Section 4 8 you should be able to remove the jammed card 7 Replace the memory card slot cover over the memory card slot Figure 4 3 8 Turn the computer so its right side is facing you 9 If necessary remove the card modem slot cover to expose the card modem slot Figure 4 5 10 Gently pull the card modem pull...

Page 124: ...ernal cables connected to the T3300SL 2 Remove the battery pack memory card and card modem as instructed in Sections 4 2 and 4 3 3 Close the LCD display if it is open 4 Remove the PS 2 mouse cover the keypad connector cover the communication ports cover and the EXP connector cover Figure 4 6 Figure 4 6 Removing the port covers ...

Page 125: ...n the side of the top cover and the one latch on the back of the bottom cover Separate the bottom cover from the computer Figure 4 8 Figure 4 8 Removing the bottom cover 7 Remove the tape securing the PS 2 mouse cable to the sub battery Then disconnect the sub battery cable from PJ4 on the power supply board Carefully remove the sub battery from the computer Note Review the routing of the sub batt...

Page 126: ...ling the sub battery tape 3 Place the bottom cover over the computer adjusting it as necessary to align the screw holes and seams CAUTION When installing the bottom cover on the computer push the FDD cover in with your finger so that the cover does not jam when you secure the bottom cover 4 Make sure the two front latches and one back latch snap into place Figure 4 8 5 Place the math coprocessor c...

Page 127: ...ack is facing you Then remove the tape securing the bat tery terminal cables and HDD cable Figure 4 10 4 Disconnect the battery terminal cables from PJ2 and PJ3 on the power supply board FMSPSx Figure 4 10 5 Remove the two M2x6 screws securing the battery terminal assembly to the battery pack case Slide the battery terminal cables under the flexible HDD cable Lift the battery terminal assembly out...

Page 128: ...d Figure 4 10 2 Place the battery terminal assembly at the end of the battery pack case just in front of the HDD Align the two screw holes on the battery pack case with the battery terminal assem bly Secure the battery terminal assembly with the two M2x6 screws Figure 4 10 3 Secure the HDD cable and battery terminal cables with tape Figure 4 11 Figure 4 11 Taping the HDD and Battery Terminal Assem...

Page 129: ... battery terminal assembly as instructed in Section 4 5 3 Disconnect the HDD cable from the HDD Figure 4 12 Figure 4 12 Disconnecting the flexible HDD cable 4 Remove the single M2x4 screw securing the 150 pin expansion port Slide the 150 pin expansion port to the right to release it from its latch Lift the port up and gently lay it on the system board Figure 4 13 Figure 4 13 Disconnecting the 150 ...

Page 130: ...hen remove the support bracket Figure 4 14 Figure 4 14 Removing the battery pack case assembly support 6 Remove the four M2x6 screws securing the battery case and the single M2x6 screw from the HDD bracket Figure 4 15 Figure 4 15 Removing the HDD bracket and battery case screws 7 Gently lift the battery case and HDD out of the computer ...

Page 131: ...al screws MK2024FC MK2124FC Conner drive Figure 4 16 2 Place the HDD and battery pack assembly in the T3300SL and align the screw holes in the battery pack case area 3 Secure the HDD and battery pack assembly in place with the five M2x6 screws Figure 4 15 4 Connect the flexible HDD cable to the HDD 5 Place the 150 pin expansion port over the HDD Slide the 150 pin expansion port to the left to secu...

Page 132: ...socket flexible cable from pressure plate connector PJ21 on the system board and PJ1 on the power supply board Remove the single M2x4 screw securing the AC adapter socket to the communication ports bracket Figure 4 17 5 Slide the AC adapter socket out of the cutout on the communication ports bracket being careful not to damage the HDD cable and remove the AC adapter socket and its cable Figure 4 1...

Page 133: ...r M2x5 screws securing the card modem and memory card connectors Figure 4 18 Figure 4 18 Unsecuring the card modem and memory card holders 8 Gently force the top cover away from the communication ports bracket Lift and rotate the communication ports bracket out the computer in the direction of the arrow shown in Figure 4 19 Figure 4 19 Removing the communication ports bracket ...

Page 134: ...apter socket on the communication ports bracket One side of the board fits into the cutout on the bracket Secure the AC adapter socket in place with the single M2x4 screw Figure 4 17 2 Before installing the communication ports bracket make sure the display panel shut off switch cable and display cable are routed correctly and will not be pinched by the commu nication ports bracket Figure 4 21 Figu...

Page 135: ...the com puter with the alignment pin and secure the bracket with the single M2x4 screw on the inside hole Secure the left side of the bracket with the single M2x4 screw just below the AC adapter socket Figure 4 18 4 Install the memory card holder marked G2 and card modem holder marked G1 Figure 4 20 5 Secure the memory and modem ports with the four M2x5 screws Figure 4 18 ...

Page 136: ...50 pin expansion port away from the system board Then remove the four top M2x4 screws securing the system board to the computer Figure 4 22 Figure 4 22 Removing the top system board screws 4 Place the system board support block behind the computer Gently lift up the top half of the system board containing the communication ports bracket to expose the bottom half of the system board Figure 4 22 Lay...

Page 137: ...from PJ19 on the system board Figure 4 23 Remove the PS 2 mouse connector and cable from the computer NOTE Review the routing of the PS 2 mouse cable before you disconnect it It is very important to route this cable the same way when you reassemble the computer Figure 4 23 Disconnecting the cables 7 Remove the tape and disconnect the LED cable from PJ11 Figure 4 25 8 Peel the LED board away from t...

Page 138: ...d cable from pressure plate connector PJ10 on the system board Figure 4 25 Figure 4 25 Removing the cables connected to the system board 11 Remove the four M2 5x4 special screws securing the floppy disk drive Figure 4 26 NOTE It may be necessary to place the top portion of the system board back into the computer so that you can remove the two FDD screws located near the back of the com puter Figur...

Page 139: ...ws 4 8 2 Installing the System Board LED Board and Floppy Disk Drive 1 Slide the system board into position making sure there are no cables or screws underneath it 2 Make sure the power supply board is positioned on its guide pin on the right side of the power supply board 3 Connect the system board to the power supply board at PJ9 on the system board 4 Secure the system board in place with the fo...

Page 140: ...and display cables Figure 4 28 Figure 4 28 Applying the tape on the system board cables 8 Connect the RTC battery cable to PJ2 on the system board Connect the PS 2 mouse cable to PJ19 on the system board Figure 4 23 9 Place the RTC battery in the slot in front of the floppy disk drive bracket Then route the PS 2 mouse cable on top of the connector and on top of the RTC battery as you place the mou...

Page 141: ...ake sure the RTC battery cable and PS 2 mouse cable are routed correctly and are not trapped beneath the FDD before continuing 12 Secure the floppy disk drive in place with the four M2 5x4 special screws Figure 4 26 Figure 4 29 Installing the floppy disk drive 13 Lower the top half of the system board into place and secure it in place with the four M2x4 ...

Page 142: ...ot necessary to remove the LED board in order to remove the power supply board Simply disconnect the LED board from PJ11 on the system board before removing the system board 3 Lift the power supply board out of the T3300SL Figure 4 30 Figure 4 30 Removing the power supply board 4 9 2 Installing the Power Supply Board 1 Place the power supply board in the T3300SL Figure 4 30 2 Align the board with ...

Page 143: ...cted in Section 4 9 3 Remove the five M2x4 screws securing the keyboard base to the top cover Figure 4 31 4 Remove the keyboard base from the computer Figure 4 31 It may be necessary to sepa rate the mylar shielding from the keyboard base and or the keyboard Figure 4 31 Removing the keyboard screws 5 Release the two latches securing the keyboard Then lift the keyboard out of the computer Figure 4 ...

Page 144: ...he keyboard base into place and secure it with the five M2x4 screws Figure 4 31 3 Secure the mylar shielding to the keyboard base and or keyboard NOTE The metal plate that provides support for the PS 2 mouse cable should be posi tioned in the left back corner of the keyboard base The screw hole should align with the screw hole on the vertical support for the FDD ...

Page 145: ...2 3 Place the T3300SL in front of you as if you were going to use it and the open the display 4 Remove the two rubber cushions on the top of the display module and the two rubber seals from the bottom of the display module to expose the screws securing the display mask Remove the two M2 5x6 screws securing the bottom of the display mask and the two M2x6 screws securing the top of the display mask ...

Page 146: ... panel is opened to an angle of more than 90 to prevent breakage of the display hinge supports on the mask Figure 4 34 6 To remove the FL inverter board remove the two M2x6 screws at the top and bottom of the FL inverter board Release the mylar shielding attached to the bottom of the mylar shielding that covers the FL inverter board Figure 4 35 7 Gently rotate the FL inverter board toward the LCD ...

Page 147: ... the lower left screw This washer must be installed at re assembly Figure 4 36 Removing the LCD module screws 9 Release the mylar shielding on the left side of the LCD module Lift the LCD module up and rotate it to the left and disconnect the three display cables from CN1 CN2 and CN3 on the left side of the LCD Figure 4 37 ...

Page 148: ... be necessary to rotate the cover slightly so that you do not damage the bottom portion of the cover over the hinges 4 11 2 Installing the Back Cover LCD Module FL Inverter Board and Display Mask 1 Position the back cover making sure that the mylar tab is not pinched between the right display hinge and the cover Figure 4 38 Secure the mylar tab between the two screw holes CAUTION Before firmly sec...

Page 149: ...the FL inverter board Figure 4 35 Rotate the board into position making sure the volume and contrast knobs pass through the cutouts in the back cover Then attach the adhesive mylar tab to the bottom of the FL inverter board shielding Secure the FL inverter board in place with the two M2x6 screws Figure 4 35 7 Align the display mask over the LCD display panel Be careful not to damage the lower port...

Page 150: ...12 2 Remove the communication ports bracket as instructed in Section 4 7 3 Remove the two M2x4 screws from the left side of the computer that secure the LCD display cable cover Figure 4 40 Figure 4 40 Removing the LCD display cable cover 4 Remove the two M2 5x4 screws and remove the display panel shut off switch and hinge Figure 4 41 ...

Page 151: ...ut off switch 6 Slide the LCD display cable out through the top of the T3300SL Figure 4 43 Figure 4 43 Removing the LCD display cable 4 12 2 Installing the LCD Display Cable 1 Slide the LCD display cable in through the top of the T3300SL Figure 4 43 2 Secure the display panel shut off switch to the display panel hinge with the single M2x8 screw Figure 4 42 3 Install the hinge and display panel shu...

Page 152: ...4 42 4 Place the LCD display cable cover over the display cables Figure 4 44 Figure 4 44 Installing the LCD display cable cover 5 Secure the LCD display cable cover with the two M2x4 screws Figure 4 40 ...

Page 153: ...App 1 Appendices ...

Page 154: ...App 2 This page intentionally left blank ...

Page 155: ...4 Expansion Connector App 22 B 14 PJ15 Display Switch Connector App 23 B 15 PJ16 Ten Key Connector App 23 B 16 PJ17 CRT I F Connector App 24 B 17 PJ19 PS 2 Mouse Connector App 24 B 18 PJ21 Power Supply I F Connector App 24 Appendix C ASCII Character Codes App 25 Appendix D Keyboard Scan Character Codes App 26 Appendix E Keyboard Layouts App 31 E 1 USA Keyboard App 31 E 2 UK Keyboard App 31 E 3 Ger...

Page 156: ...17 Table B 3 External PRT FDD connector pin assignment 25 pin App 17 Table B 4 Internal floppy disk drive connector pin assignment 25 pin App 17 Table B 5 Hard disk drive I F connector pin assignment 50 pin App 18 Table B 6 Serial I F connector pin assignment 9 pin App 18 Table B 7 Card modem connector pin assignment 68 pin App 19 Table B 8 Power supply I F connector pin assignment 30 pin App 20 T...

Page 157: ...App 5 Appendix A System Board Layout A 1 System Board ICs Figure A 1 System board ICs front 5 4 3 1 2 x ...

Page 158: ...App 6 Figure A 2 System board ICs back 6 7 8 9 10 ...

Page 159: ...ame 1 IC32 IC card controller gate array 2 IC11 Super integration SI T9920 3 IC17 Keyboard controller 4 IC10 80360SL 5 IC21 IC22 Video RAM 6 IC9 BIOS ROM 7 IC1 Central processing unit 80386SL 8 IC20 PVGA1F 9 IC3 Cache memory 10 IC5 IC6 IC7 IC8 System memory ...

Page 160: ...App 8 This page intentionally left blank ...

Page 161: ...App 9 A 2 System Board Connectors Figure A 3 System board connectors front 3 2 1 4 5 6 7 10 9 8 11 13 14 x 12 ...

Page 162: ...App 10 Figure A 4 System board connectors back 17 16 15 ...

Page 163: ...nector 5 PJ19 PS 2 mouse connector 6 PJ11 LED connector 7 PJ12 PJ13 Display connectors 8 PJ15 Display panel shut off connector 9 PJ10 Keyboard connector 10 PJ16 Tenkey port 11 PJ4 Internal FDD connector 12 PJ9 Power supply connector 13 PJ1 Expansion memory connector 14 PJ14 Expansion port 15 PJ17 RGB port 16 PJ21 AC adapter select connector 17 PJ5 HDD connector ...

Page 164: ...App 12 This page intentionally left blank ...

Page 165: ...App 13 A 3 System Board Oscillators Figure A 5 System board oscillators front 1 2 4 3 x ...

Page 166: ...App 14 Figure A 6 System board oscillators back 9 8 7 5 6 ...

Page 167: ...768KHz for real time clock 2 X3 14 7456MHz for COM 3 X5 24MHz for floppy disk controller and variable frequency oscillator 4 X4 14 31818MHz for keyboard controller 5 X1 50 0MHz for CPU 6 X2 16 0MHz for CPU 7 X9 25 175MHz for video 8 X7 44 9MHz for video 9 X8 28 322MHz for video ...

Page 168: ... MA04 101 O 60 MA07 101 O 17 N C 61 MA09 101 O 18 MA06 101 O 62 GND 19 MA08 101 O 63 GND 20 MA10 101 O 64 GND 21 GND 65 RAS3 001 O 22 RAS2 001 O 66 CASL1 001 O 23 CASL2 001 O 67 GND 24 CASH2 001 O 68 CASH1 001 O 25 N C 69 RAMV 26 RAS1 001 O 70 MEMWEL 001 O 27 N C 71 DRMST1 100 I 28 DRMST2 100 I 72 DRMST3 100 I 29 DRMST4 100 I 73 GND 30 DRMST6 100 I 74 DRMST5 100 I 31 CASL3 000 O 75 DRMST7 100 I 32...

Page 169: ...02 PDB00 100 I O 15 ERROR 000 I O 03 PD01 100 I O 16 PINT 000 O 04 PD02 100 I O 17 SLIN 000 O 05 PD03 100 I O 18 GND 06 PD04 100 I O 19 GND 07 PD05 100 I O 20 GND 08 PD06 100 I O 21 GND 09 PD07 100 I O 22 GND 10 ACK 000 I O 23 GND 11 BUSY 100 I O 24 GND 12 PE 110 I O 25 GND 13 SELCT 100 I O Pin Signal I O Pin Signal I O 01 ISSEL 000 O 14 GND 02 GND 15 IDIRC 000 O 03 IRDAT 000 I 16 ILOWD 000 O 04 G...

Page 170: ...34 N C 10 SD08 102 I O 35 PHIRDY 100 I 11 SD06 102 I O 36 GND 12 SD09 102 I O 37 IRO14 100 I 13 SD05 102 I O 38 HDIO15 I 14 SD10 102 I O 39 SA01 100 O 15 SD04 102 I O 40 N C 16 SD11 102 I O 41 SA00 100 O 17 SD03 102 I O 42 SA02 100 O 18 SD12 102 I O 43 HDC0C5 000 O 19 SD02 102 I O 44 HDC1C5 000 O 20 SD13 102 I O 45 DRVSL 000 I 21 SD01 102 I O 46 GND 22 SD14 102 I O 47 VCC 23 SD00 102 I O 48 VCC 24...

Page 171: ...100 O 46 CAD17 100 O 13 CAD13 100 O 47 CAD18 100 O 14 CAD14 100 O 48 CAD19 100 O 15 WE 000 O 49 CAD20 100 O 16 BSY 000 I 50 CAD21 100 O 17 MCVCC 51 MCVCC 18 MCVPP1 52 MCVPP2 19 CAD16 100 O 53 CAD22 100 O 20 CAD15 100 O 54 CAD23 100 O 21 CAD12 100 O 55 CAD24 100 O 22 CAD07 100 O 56 CAD25 100 O 23 CAD06 100 O 57 N C 24 CAD05 100 O 58 CRESET 100 O 25 CAD04 100 O 59 WAIT 000 I 26 CAD03 100 O 60 INPACK...

Page 172: ...00 I 8 GND 23 GND 9 9V I 24 DSPV I 10 12V I 25 DSPV I 11 GND 26 GND 12 CHG 100 I 27 SRTBN I 13 LB 100 I 28 SUSSTA 100 I 14 GND 29 PSBUSY 000 I 15 PCLR 001 I 30 LOBAT 100 I Pin Signal I O Pin Signal I O 1 KBOT00 001 O 11 KBOT03 001 O 2 KBRT6 100 I 12 KBOT04 001 O 3 KBRT0 100 I 13 KBOT05 001 O 4 KBRT2 100 I 14 KBOT06 001 O 5 KBRT3 100 I 15 KBOT08 001 O 6 KBRT1 100 I 16 KBOT02 001 O 7 KBRT7 100 I 17 ...

Page 173: ...r Table B 12 LCD connector pin assignment 6 pin Pin Signal I O Pin Signal I O 1 GND 7 SUD3 120 O 2 SCLK 110 I 8 SLD0 120 O 3 GND 9 SLD1 120 O 4 SUD0 120 O 10 SLD2 120 O 5 SUD1 120 O 11 SLD3 120 O 6 SUD2 120 O 12 GND Pin Signal I O Pin Signal I O 1 GND 4 GND 2 LP 020 O 5 DSPV O 3 FP 020 O 6 CBLON 000 O ...

Page 174: ... MIRQ 001 I 57 RESET 101 O 17 SPKTON 001 I 58 DACK1 001 O 18 GND 59 IRQ9 101 I 19 SA00 101 O 60 GND 20 SA01 101 O 61 N C 21 SA02 101 O 62 IOCLK 101 O 22 SA03 101 O 63 IRQ5 101 I 23 SA04 101 O 64 DRQ3 101 I 24 SA05 101 O 65 DACK3 001 O 25 SA06 101 O 66 AEN 101 O 26 SA07 101 O 67 DRQ1 101 I 27 GND 68 IOCRDY 101 I 28 SA08 101 O 69 GND 29 SA09 101 O 70 IRQ10 101 I 30 SA10 101 O 71 IRQ14 101 I 31 SA11 ...

Page 175: ... 127 PDB03 100 I O 94 MASTER 001 I 128 PDB04 100 I O 95 LA17 101 I 129 PDB05 100 I O 96 SBHE 001 I O 130 PDB06 100 I O 97 IOCHCK 001 I 131 PDB07 100 I O 98 MMCS16 001 I 132 ACK 000 I 99 GND 133 BUSY 100 I 100 IOCS16 001 I 134 PE 100 I 101 DACK2 001 O 135 SELCT 100 I 102 DRQ6 101 I 136 AUTFD 000 O 103 DRQ5 101 I 137 ERROR 000 I 104 DACK5 001 O 138 PINT 000 O 105 MERD 001 I O 139 SLIN 000 O 106 IRQ4...

Page 176: ...Power supply I F connector pin assignment 11 pin Pin Signal I O Pin Signal I O 01 RED 101 O 09 N C 02 LGREN 101 O 10 GND 03 BLUE 101 O 11 N C 04 N C 12 N C 05 GND 13 PHSYNC 100 O 06 GND 14 PVSYNC 100 O 07 GND 15 N C 08 GND Pin Signal I O Pin Signal I O 1 MOUSDT 100 I 3 VCC 2 GND 4 MOUSCK 100 I Pin Signal I O Pin Signal I O 1 DCIN I 7 CURNT I 2 DCIN I 8 ADPCNT 100 I 3 GND 9 GND 4 GND 10 GND 5 CURNT...

Page 177: ...App 25 Appendix C ASCII Character Codes Table C 1 ASCII character codes ...

Page 178: ...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 18 98 44 F0 44 2 26 P 19 99 4D F0 4D 2 27 1A 9A 54 F0 54 28 1B 9B 5B F0 5B 29 42 2B AB 5D F0 5D 5 30 Caps Lock 3A BA 58 F0 58 31 A 1E 9E 1C F0 1C 32 S 1F...

Page 179: ...3 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 180: ...el 6 Refer to Table D 6 Scan code with Ctrl key 7 Refer to Table D 7 Scan code with Alt key Cap No Keytop Code set 1 Code set 2 Note Make Break Make Break 112 F1 3B 3B 05 F0 05 113 F2 3C BC 06 F0 06 114 F3 3D BD 04 F0 04 115 F4 3E BE 0C F0 0C 116 F5 3F BF 03 F0 03 117 F6 40 C0 0B F0 0B 118 F7 41 C1 83 F0 83 119 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...

Page 181: ...A E0 12 E0 75 E0 F0 75 E0 F0 12 84 E0 2A E0 50 E0 D0 E0 AA E0 12 E0 72 E0 F0 72 E0 F0 12 85 PgUp E0 2A E0 49 E0 C9 E0 AA E0 12 E0 7D E0 F0 7D E0 F0 12 86 PgDn E0 2A E0 51 E0 D1 E0 AA E0 12 E0 7A E0 F0 7A E0 F0 12 89 E0 2A E0 4D E0 CD E0 AA E0 12 E0 74 E0 F0 74 E0 F0 12 Cap No Keytop Code set 1 Code set 2 Make Break Make Break 75 Ins E0 AA E0 52 E0 D2 E0 2A E0 F0 12 E0 70 E0 F0 70 E0 12 76 Del E0 A...

Page 182: ... 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 Cap No Keytop Code set 1 Code set 2 Make Break Make Break 43 ENT E0 1C E0 9C E0 5A E0 F0 5A 58 CTRL E0 1D E0 9D E0 14 E0 F0 14 60 LALT E0 38 E0 B8 E0 11 E0 F0 11 122 NUML 45 C5 77 F0 77 123 SCRL 46 C6 7E F0 7E Key Top Shift Code set 1 Code set 2 Make Break Make Break Prt Sc Common E0...

Page 183: ...App 31 Appendix E KeyboardLayouts E 1 USA Keyboard Figure E 1 USA keyboard E 2 UK Keyboard Figure E 2 UK keyboard ...

Page 184: ...App 32 E 3 German Keyboard Figure E 3 German keyboard E 4 French Keyboard Figure E 4 French keyboard ...

Page 185: ...App 33 E 5 Spanish Keyboard Figure E 5 Spanish keyboard E 6 Italian Keyboard Figure E 6 Italian keyboard ...

Page 186: ...App 34 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 ...

Page 187: ...App 35 E 9 Canadian Keyboard Figure E 9 Canadian keyboard E 10 Keycap Number Keyboard Figure E 10 Keycap number keyboard ...

Page 188: ...17 SLIN 2 PD0 11 BUSY Figure F 1 Printer wraparound connecter 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 connecter 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 189: ...App 37 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 190: ...T3300SL NOTES ...

Page 191: ...Inside Back Cover Replace with blank page ...

Page 192: ...Toshiba America Information Systems Inc Computer Systems Division 9740 Irvine Boulevard P O Box 19724 Irvine CA 92713 9724 ...

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