Toshiba T2000SXe User Manual

Download

Part 1 Hardware Overview

1-1

This page intentionally left blank

1-2

Contents

1.1 General ....................................................................................................................... 1-5

1.2 System Unit ................................................................................................................ 1-7

1.3 3.5-inch Floppy Disk Drive....................................................................................... 1-10

1.4 2.5-inch Hard Disk Drive .......................................................................................... 1-11

1.5 Keyboard .................................................................................................................. 1-12

1.6 Sidelit Liquid Crystal Display ................................................................................... 1-13

Tables

Table 1-1 T2000SXe 3.5-inch FDD specifications......................................................... 1-10

Table 1-2 T2000SXe 2.5-inch HDD specifications ........................................................ 1-11

Table 1-3 Sidelit LCD specifications ............................................................................. 1-13

Table 1-4 FL inverter specifications .............................................................................. 1-14

Figures

Figure 1-1 T2000SXe personal computer.......................................................................... 1-6

Figure 1-2 T2000SXe system unit configuration .............................................................. 1-6

Figure 1-3 T2000SXe block diagram ................................................................................ 1-7

Figure 1-4 T2000SXe 3.5-inch FDD ............................................................................... 1-10

Figure 1-5 T2000SXe 2.5-inch HDD............................................................................... 1-11

Figure 1-6 T2000SXe keyboard ...................................................................................... 1-12

Figure 1-7 Sidelit LCD ................................................................................................... 1-13

1-3

This page intentionally left blank

1-4

1.1 General

The Toshiba T2000SXe is one of the lightest and most advanced portable computers available offering high technology, high speed, excellent legibility, IBM PC/AT compatibility, and battery operation.

The T2000SXe is one of a new class of portables called notebook computers, the lightest portable computers available.

The T2000SXe system unit has the following features: ❑ The Central Processing Unit (CPU) is an 80386SX-20 32-bit microprocessor, operating at

20MHz.

❑ The standard Random Access Memory (RAM) capacity is 2MB. With 2MB, 4MB, or 8MB

expansion memory cards, the T2000SXe system can have a maximum of 10MB of RAM.

❑ An 80387SX-20 Numeric Data Processor (NDP) can be installed. ❑ The Liquid Crystal Display (LCD) supports 640x480 pixels with Video Graphics Array

(VGA) compatibility and 16 levels of gray.

❑ The display controller supports VGA functions through the High Resolution Graphics

Subsystem (HRGS).

❑ The 3.5-inch Floppy Disk Drive (FDD) supports two memory formats:

• 1.44MB double-sided, high-density, double-track (2HD)

• 720KB double-sided, double-density, double-track (2DD)

❑ The 2.5-inch Hard Disk Drive (HDD) has either a 40MB or 60MB capacity. ❑ The keyboard is an 86/88-key keyboard that is fully compatible with the IBM standard 101/

102-key keyboard.

❑ The universal auto-sensing AC adapter can be used in a range from 100 to 240 volts AC. ❑ A built-in modem slot is available for an optional built-in modem. ❑ A parallel port, serial port, RGB port, numeric keypad port, and expansion bus connector

are provided to allow the T2000SXe to interface with a variety of optional equipment.

❑ The T2000SXe supports the Toshiba AutoResume feature, storing the data and configura-

tion information when the power is turned off.

❑ The Real Time Clock (RTC) continuously stores the date and time even when the power is

turned off.

1-5

The T2000SXe Personal Computer is shown in Figure 1-1 and the T2000SXe system configuration is shown in Figure 1-2.

Figure 1-1 T2000SXe personal computer

Figure 1-2 T2000SXe system unit configuration

1-6

1.2 System Unit

Figure 1-3 shows the block diagram of the T2000SXe’s system unit.

Figure 1-3 T2000SXe block diagram

1-7

The system board in the T2000SXe is composed of the following major components: ❑ Central Processing Unit (CPU): 80386SX-20

The CPU is a 32-bit microprocessor operating at 20MHz (fast mode) and 10MHz (slow mode) clock speeds.

❑ Numeric Data Processor (NDP) socket for the 80387SX-20 (optional) ❑ Super Integration (SI): T9778A

The SI stores the following components:

· Two Direct Memory Access Controllers (DMACs): 82C37A

· Two Programmable Interrupt Controllers (PICs): 82C59A

· One Programmable Interval Timer (PIT): 82C54

· One Floppy Disk Controller (FDC): TC8565

· One Serial Input/Output Controller (SIO): TC8570

❑ Variable Frequency Oscillator (VFO): TC8568AM

The VFO chip is used for Floppy Disk Drive control logic.

❑ Real Time Clock (RTC): 146818AF

The RTC chip stores the date, time, and system configuration with power supplied from the RTC battery.

❑ Keyboard Interface Controller (KBIC): 80C42 ❑ Keyboard Scan Controller (KBSC): 80C50 ❑ Power Supply Controller (PSC): U47C440 ❑ Memory:

Standard RAM: 2MB Backup RAM: 32KB BIOS ROM: 128KB (96KB are used)

BIOS ROM also contains the Initial Reliability Test (IRT), the system’s Basic Input/

Output System (BIOS), and the video BIOS. Video RAM: 256KB Optional memory cards:

The system can have up to 10MB of RAM by installing an optional memory card.

❑ Gate arrays:

System control gate array: GA-SCNT2 (208-pin) I/O control gate array: GA-IO CNT (176-pin) VGA display controller: PVGA1F (132-pin)

1-8

❑ Oscillators (OSC):

14.7456MHz OSC (X1) is used for the SIO.

14.31818MHz OSC (X2) is used for the KBC.

44.9MHz OSC (X3), 28.322MHz OSC (X5), and 25.175MHz OSC (X6) are used for the video.

40.0MHz OSC (X4) is used for the CPU. 24MHz OSC (X7) is used for the VFO.

32.768KHz OSC (X8) is used for the RTC. 500KHz OSC (X701) is used for the PSC.

See Appendix A for the location of the OSCs.

1-9

1.3 3.5-inch Floppy Disk Drive

Recording method M FM (modified frequency modulation)

The T2000SXe 3.5-inch Floppy Disk Drive (FDD) supports 720KB (formatted) 2DD and 1.44MB (formatted) 2HD 3.5-inch floppy disks.

The T2000SXe FDD is shown in Figure 1-4 and its specifications are described in Table 1-1.

Figure 1-4 T2000SXe 3.5-inch FDD

Table 1-1 T2000SXe 3.5-inch FDD specifications

Ite m 2-Mbyte mode 1-Mbyte mode

Storage capacity (Kbyte) Unformatted Formatte d Number of heads 2 2 Number of cylinders 80 80 Access time (ms) Track to trac k Average Head settling time Recording trac k density (tpi) 135 135 Data transfer rate (Kbps) 500 250 Rotation speed (rpm) 300 300

2,000 1,440

3 94 15

1,000

720

3 94 15

1-10

1.4 2.5-inch Hard Disk Drive

1-7 RLL

The 40MB or 60MB (formatted) Hard Disk Drive (HDD) is a random access storage device. It is equipped with a non-removal 2.5-inch magnetic disk and mini-Winchester type magnetic heads.

The T2000SXe HDD is shown in Figure 1-5. The HDD specifications are described in Table 1-2.

Figure 1-5 T2000SXe 2.5-inch HDD

Table 1-2 T2000SXe 2.5-inch HDD specifications

It em

Sto rage capacity Form atted (Mbytes) Num ber of disks 2 2 2 Data heads 4 3 4 Data su rfaces 4 3 4 Tr acks per surface 55 2 791 (+2) 8 23 Tr acks per drive 2,208 2,373 (+6) 1,306 Sector s per track 38( +1) 35(+1) 38(+1) Bytes per sector 51 2 51 2 51 2 Access time (ms) T rack to track Average M aximum Rotation speed (rpm) 3,486 3,109 3,444 Data transfer rate To/from m edia (bps) Interleav e 1:1 1:1 1:1 Recor ding m ethod 2-7 RLL/

CP- 2044 JD-E 2850P CP-2064

40- Mbyte 60- Mbyte

42.6 42.52 64.0

5 19 40

12 M 10 M 12 M

9 25 47

2-7 RLL 2-7 RLL/

5 19 40

1-11

1.5 Keyboard

The 86-key (USA) or 88-key (European) keyboard is mounted on the system unit. The keyboard is connected to the keyboard controller on the system board through 8-pin and 12-pin flat cables. The keyboard is shown in Figure 1-6.

See Appendix E for optional keyboard configurations.

1-12

Figure 1-6 T2000SXe keyboard

1.6 Sidelit Liquid Crystal Display

FL frequency (KHz) 35-43

The sidelit Liquid Crystal Display (LCD) is composed of an LCD module, a Fluorescent Lamp (FL), and FL inverter board.

(1) LCD module

The T2000SXe sidelit LCD is illuminated from the side and supports 640x480 pixels with a High Resolution Graphics Subsystem (HRGS) and 16 levels of gray. The HRGS includes the functions of the Video Graphics Array (VGA).

The LCD receives 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. All signals are CMOS-level compatible.

The sidelit LCD is shown in Figure 1-7 and its specifications are described in Table 1-3.

Table 1-3 Sidelit LCD specifications

Item Specifications

Numbe r of dots (dots) 640x480 Dot dimens ion (mm) 0.24(W)x0.24(H) Dot pitch (mm) 0.27(W)x0.27(H) Display area (mm) 183.0(W)x136.0(H) Contrast 15:1 (typ.) FL c urrent (mA) 4.0-6.0

Figure 1-7 Sidelit LCD

1-13

(2) Fluorescent Lamp inverter board

Bounds of curre nt (mA) 3.25-5.5

The FL inverter board supplies the high frequency current needed to illuminate the FL.

The specifications for the FL inverter are described in Table 1-4.

Table 1-4 FL inverter specifications

Ite m Specifications

Input Voltage (V) 12-24

Power (W) 3.6 (Max.) Voltage (V) 800 (min.)

Output

Current (mA) 5.5 Frequenc y (KHz) 39

1-14

Part 2 Problem Isolation Procedures

2-1

This page intentionally left blank

2-2

Contents

2.1 General ....................................................................................................................... 2-5

2.2 Problem Isolation Flowchart....................................................................................... 2-6

2.3 Power Supply Problem Isolation Procedures............................................................... 2-8

2.4 System Board Problem Isolation Procedures ............................................................ 2-14

2.5 Floppy Disk Drive Problem Isolation Procedures ..................................................... 2-20

2.6 Hard Disk Drive Problem Isolation Procedures......................................................... 2-25

2.7 Keyboard Problem Isolation Procedures ................................................................... 2-30

2.8 Display Problem Isolation Procedures ...................................................................... 2-33

Tables

Table 2-1 Power supply error status .............................................................................. 2-10

Table 2-2 Normal status and error status of the printer port LED .................................. 2-17

Table 2-3 FDD error code and status ............................................................................. 2-23

Table 2-4 HDD error code and status............................................................................. 2-28

Figures

Figure 2-1 Problem isolation flowchart ............................................................................ 2-6

2-3

This page intentionally left blank

2-4

2.1 General

This part describes how to determine which Field Replaceable Unit (FRU) is causing the T2000SXe to operate abnormally.

The FRUs covered are:

❑ Power supply unit ❑ System board (PCB FT3SYx) ❑ FDD ❑ HDD ❑ Keyboard ❑ Display

The Diagnostics Disk operations are described in Part 3 and detailed replacement procedures are given in Part 4.

The following items are necessary for implementing the problem isolation procedures.

❑ T2000SXe Diagnostics Disk ❑ Phillips head screwdrivers (2mm, 3mm) ❑ Toshiba MS-DOS system disk ❑ 2DD or 2HD formatted work disk (for FDD testing) ❑ Cleaning disk kit (for FDD testing) ❑ Printer port LED ❑ RS-232-C wraparound connector ❑ Printer wraparound connector ❑ Multimeter

2-5

2.2 Problem Isolation Flowchart

The flowchart in Figure 2-1 is used as a guide for determining which FRU is causing the T2000SXe to operate abnormally. Before performing the procedures described in the flowchart, please confirm the following:

❑ Disconnect all optional equipment from the T2000SXe. ❑ Remove any diskette in the FDD.

START

Insert the Toshiba MS-DOS system disk into the FDD.

Turn the POWER switch on.

Wait 5 seconds or more.

Does the power indicator No Perform the power supply come on when the power is problem isolation procedures turned on? in Section 2.3.

Yes

Is an error message Yes Perform the system board displayed? problem isolation procedures

in Section 2.4.

Is the XXXK Base Memory, No Perform the display XXXXXK Extended message problem isolation procedures displayed ? in Section 2.8.

Yes

Does the XXXK Base Memory, Perform the system board XXXXK Extended message No problem isolation procedures proceed from Base Memory = in Section 2.4. 64KB and Extended = 0KB to Base Memory = 640KB and Extended = (amount of extended memory)?

Yes

Is Toshiba MS-DOS No Perform the FDD problem being loaded? isolation procedures in

Section 2.5.

Yes

Figure 2-1 Problem isolation flowchart

2-6

Do typed characters No Perform the keyboard problem appear correctly? isolation procedures in

Section 2.7.

Yes

Insert the Diagnostics Disk into the FDD. Then type A:TESTCE20 and press Enter.

Perform each test.

After confirming which diagnostic

test detected an error, perform the Is an error detected in Yes relevant problem isolation the diagnostics program? procedures as indicated below.

System is normal.

END

Figure 2-1 Problem isolation flowchart (continued)

If the diagnostics program does not detect any errors, the problem may be intermittent. The running test should be executed several times to isolate the problem.

After confirming which diagnostic test detected an error(s), refer to the appropriate section as follows:

❑ If an error is detected on the system test, memory test, display test, ASYNC test, printer

test, or real timer test, perform the system board problem isolation procedures in Section

2.4.

❑ If an error is detected on the keyboard test, perform the keyboard problem isolation proce-

dures in Section 2.7.

❑ If an error is detected on the floppy disk test, perform the FDD problem isolation proce-

dures in Section 2.5.

❑ If an error is detected on the hard disk test, perform the HDD problem isolation procedures

2-7

in Section 2.6.

2.3 Power Supply Problem Isolation Procedures

This section describes how to determine if the power supply is causing the T2000SXe to operate abnormally. Start with Procedure 1 and continue with the other procedures as instructed. The procedures described in this section are:

Procedure 1: DC IN Indicator Check

Procedure 2: Connector and Cable Check

2-8

UPDATE

Procedure 3: Replacement Check

Procedure 1

DC IN Indicator Check

1. When the T2000SXe AC adapter is connected to a live wall outlet and the T2000SXe, the

DC IN indicator will light red. If the AC adapter or the power supply is malfunctioning, the DC IN indicator will flash red or does not light at all.

(1) If the DC IN indicator flashes red, refer to Check 1.

(2) If the DC IN indicator does not light, refer to Check 2.

Check 1 When a power supply problem occurs, the DC IN indicator will flash repeatedly

with a 4-bit status that varies depending on the problem.

The DC IN indicator is off for two seconds and then it lights for either ½ second (indicating a binary 0) or one full second (indicating a binary 1). There is a ½second interval between bits, with bit 0 (zero) or the least significant bit first and ending with bit 3 (three) or the most significant bit.

For example, the following timing chart shows a status of 5h (0101). The timing chart below is read from right to left.

Bit 0 Bit 1 Bit 2 Bit 3

1 0 1 0

DC IN

OFF

2s 1s 0.5s 1s 0.5s

0.5s 0.5s 0.5s

Time

➝

The status and its meaning are described in Table 2-1.

However, when the DC IN indicator blinks at random, the AC adapter or charging circuit may be damaged. In this case, replace the AC adapter with a new one. If the

2-9

problem still exists, perform Procedure 3.

current of charging current.

Table 2-1 Power supply error status

Status Meaning

1h Over voltage of AC ada pter output voltage. (More than

+18V±5%)

2h Abnorma l temperature in the system. (Less than -20°C or

more than 70°C.)

3h Abnormal charging. (The system cannot stop charging.) 4h Over current of charging current. 5h Abnormal charging voltage. 6h Abnorma l battery voltage. 7h Abnormal VCC (+ 5) voltage. 8h Abnormal R AMV (+5V for DRAM) voltage.

9h VEE (-9V) is shorted. Ah VDD (+12V) is shorted. Bh VDSP (+12V to +18V for FL) is shorted Ch Turned off the Desk Station II before turning off the

T2000SXe.

Dh Battery terminal is shorted.

Eh Under voltage of A C adapter output voltage. (Less than

+18V±5%)

Fh Under

Check 2 When the DC IN indicator does not light, one or all of the following could be the

cause:

1. The AC adapter is damaged. Replace the AC adapter.

2. Fuse (F701) on the system board is bad. Replace the fuse.

3. The charge/+18V switching signal is not sent correctly. Replace the AC adapter.

4. The AC adapter detecting circuit is damaged. Replace the AC adapter.

2-10

If the DC IN indicator problem still exists, perform Procedure 3.

2. The indicator labeled Battery lights yellow (while the system is charging the battery) or

lights green (when the battery pack is fully charged) if power is supplied from the AC adapter when you connect the battery pack to the system and the system is off.

NOTE: The system automatically stops charging the battery when the battery pack overheats.

If only the battery pack is connected to the system, this indicator does not light (indicating the battery pack is in use, or the battery pack is not in use when the AC adapter is connected) or blinks red (indicating the battery is low). If the battery pack is completely discharged, this indicator does not light.

(1) If the battery indicator blinks or does not glow when you connect the AC adapter to

the system and the system is off, see Check 3.

(2) If the battery indicator blinks when you disconnect the AC adapter from the system,

see Check 6.

NOTE: If both (1) and (2) above occur, check the power output circuits to the system.

Check 3 Make sure the battery pack is correctly connected to the system. If the problem still

exists, perform Check 4.

Check 4 Connect the AC adapter to the system and wait 30 minutes or so. If the problem still

exists, perform Check 5.

Check 5 Replace the battery pack with a recharged battery pack. If the problem still exists,

perform Procedure 2. Also, check the battery charge circuits.

Check 6 Make sure the battery pack is correctly connected to the system. If the problem still

exists, perform Check 7.

Check 7 Replace the battery pack with a known good one. If the problem still exists, perform

2-11

Procedure 2.

Procedure 2

Connector and Cable Check

The battery pack is connected to the system board with the battery cable. The cable may be disconnected or damaged. Refer to Part 4 for instructions on how to disassemble the T2000SXe and then perform the following checks.

Check 1 Make sure the battery terminal cable is connected to the system board at PJ702.

Terminal System board PJ702

If this cable is disconnected, connect it and restart the system. If the problem still exists, refer to Check 2.

Check 2 Recheck the cable using a multimeter. If the cable looks damaged, replace the

terminal assembly and restart the system. If the problem still exists, refer to Proce-

2-12

dure 3.

Procedure 3

Replacement Check

In the T2000SXe, the system board is connected with the power supply circuits. The LED board (PCB FT2LEx) is connected with the indicator circuits. Either of these boards may be damaged. Refer to Part 4 for instructions on how to disassemble the T2000SXe, and then perform the following checks.

Check 1 Replace the LED board with a new one and restart the system. If the problem still

exists, perform Check 2.

Check 2 Replace the system board with a new one. If the problem still exists, other units

2-13

may be damaged.

2.4 System Board Problem Isolation Procedures

This section describes how to determine if the system board is causing the T2000SXe to operate abnormally. Start with Procedure 1 and continue with the other procedures as instructed. The procedures described in this section are:

Procedure 1: Message and Beep Sound Check

Procedure 2: Printer Port LED Check

2-14

Procedure 3: Test Program Check

Procedure 1

Message and Beep Sound Check

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

If an error message appears on the screen, refer to Check 1. If nothing is displayed on the screen, refer to Procedure 2.

Check 1 If the following error message appears on the screen briefly, the PRT/FDD port is

assigned as FDD-A and an external FDD is not attached to the PRT/FDD port. Assign the PRT/FDD port as FDD-B or Printer using the Setup program, or attach an external FDD. Then reboot the system.

*** FDD A is not installed ***

If another error message appears, perform Check 2.

Check 2 If the following error message appears on the screen, press the F1 key. Then ex-

ecute the setup operation. Detailed setup operation procedures are described in Part

This program confirms the current T2000SXe system configuration and the configuration stored in RTC memory. If they are different, the following message will appear.

*** Error in CMOS. Bad battery *** Check system. Then press [F1] key.

*** Error in CMOS. Bad check sum *** Check system. Then press [F1] key.

*** Error in CMOS. Bad memory configuration *** Check system. Then press [F1] key.

*** Error in CMOS. Bad time function *** Check system. Then press [F1] key.

2-15

If another error message appears, refer to Check 3.

Check 3 If the following message appears, and the status of the printer port LED is F4h to

F6h, replace the system board. Otherwise, press any key. At this time the resumed data will be erased.

WARNING: RESUME FAILURE. PRESS ANY KEY TO CONTINUE.

WARNING: DATA IN HARD RAM WAS LOST YOU MUST FORMAT HARD RAM BEFORE USE PRESS ANY KEY TO CONTINUE

If another error message appears, refer to Check 4.

Check 4 The IRT program tests the system board. If an error occurs in the IRT program, the

error message appears on the screen and beep sounds are generated.

If the following message appears, replace the system board. Otherwise, refer to Check 5.

ERROR INTERRUPT CONTROLLER #1

ERROR INTERRUPT CONTROLLER #2

MEMORY VERIFY ERROR AT xxxx:xxxx FOUND xxxx EXPECTED xxxx

ERROR INTERRUPTS AND STUCK NMI

ERROR PROTECT MODE

ERROR PROCESSOR EXCEPTIONAL INTERRUPTS

Check 5 If the following message is displayed on the screen, refer to the Hard Disk Drive

Problem Isolation Procedures in Section 2.6.

If the following error message does not appear and the beep sounds do not occur, refer to Procedure 2.

ERROR ENCOUNTERED INITIALIZING HARD DISK DRIVE

2-16

ERROR INITIALIZING HARD DISK CONTROLLER

1Ah 9Ah PIC channel 2 test 3 beeps continue

Procedure 2

Printer Port LED Check

The printer port LED displays the IRT program status and error status as a hexadecimal value after the T2000SXe is turned on.

1. Connect the printer port LED to the printer port.

2. After turning the system on, read the LED status from left to right as you are facing

the back of the computer.

3. If the final LED status is FFh, refer to Procedure 3. If the final LED status matches

one of the error status codes in Table 2-2, replace the system board.

Normal

Status

Error Status

Meaning Process

00h C0h CPU s elf-test Ha lt 01h 81h CPU test 1 (flag test) Ha lt 02h 82h KBIC IBF/OBF test, video initialization Halt 03h 83h KBIC IBF test (0AAh command) Ha lt 04h 84h KBIC OBF test (55h check) Halt 05h Reserved 06h LSI initialization (DM A, PIT, PIC, RTC) Continue 07h 87h CPU test 2 (registers) Halt 08h RTC initia lization (regis ter B) Continue

09h 89h ROM checksum test (64KB) Halt 0Ah 8Ah Video initializ ation Ha lt 0Bh Reserved 0Ch Reserved 0Dh 8Dh PIT cha nnel 2 test and its initialization Ha lt

0Eh Reserved

0Fh 8Fh CMOS RAM test Ha lt

10h 90h DMA channel 0 test Ha lt

11h 91h DMA channel 1 test Ha lt

12h 92h DMA page register test Ha lt

13h 93h KBSC test and its initialization Halt

14h 94h Memory refresh test Ha lt

A7h Backup RAM test Ha lt

14h Protect mode te st Halt 15h 95h First 64KB RAM test Ha lt 16h Interrupt vector setup Continue 17h 97h Video option test Halt 18h 98h V-RAM test Ha lt 19h 99h PIC channel 1 test 3 beeps continue

2-17

Table 2-2 Normal status and error status of the printer port LED

26h A6h Protect mode exception test 3 beeps continue

Internal expansion memory has been corrupted.

Table 2-2 Normal status and error status of the printer port LED (continued)

Normal

Status

Error Status

Meaning Process

1Bh 9Bh CMOS batte ry test 1 beep key wait 1Ch Reserved Continue 1Dh 9Dh Setup RAM size from CMOS (413h) Continue 1Eh 9Eh Size conventional RAM Continue 1Fh 9Fh Conventional RA M test 3 beeps continue

20h A0h PIC ch1/ch2 test Continue 21h A1h NMI check Continue 22h A2h Interrupt proces s test (INT8) 3 beeps continue 23h A3h Protect mode test 3 beeps continue 24h A4h Size extended RAM Continue 25h A5h Conventional and extended RAM test 3 beeps continue

NOTE: If the error occurs on the 19h to 24h normal status, the system does not halt. The error message remains on the screen and when the IRT program is finished, these error messages are erased.

Status Explanation

F1h An FDD was running when the power was turned off.

Power was turned off while the IRT was running. The hardware reset switch was pressed. An external display card was attached when the power was turned off. An external expansion memory card was attached when the power was turned off.

F2h An external display card was attached while the power

was turned off.

F3h An internal display card was changed while the power

was turned off.

F4h Backup RAM has been corrupted.

The backup RAM checksum, system RAM checksum, V-RAM checksum, or expansion memory checksum in

backup RAM has been corrupted. F5h System RAM has been corrupted. F6h V-RAM has been corrupted. F7h

2-18

The table below lists the resume errors and the associated error status codes.

Procedure 3

Test Program Check

The Diagnostic Test function in the T2000SXe Diagnostic Program has several tests for testing the T2000SXe system board. Perform the following tests.

❑ System test ❑ Memory test ❑ Display test ❑ Printer test ❑ ASYNC test ❑ Real timer test

Refer to Part 3 for detailed instructions about these tests.

2-19

If an error is detected during the T2000SXe Diagnostic Program, replace the system board. If the problem still exists, check the other FRUs in the T2000SXe.

2.5 Floppy Disk Drive Problem Isolation Procedures

This section describes how to determine if the floppy disk drive is causing the T2000SXe to operate abnormally. Start with Procedure 1 and continue with the other procedures as instructed. The procedures described in this section are:

Procedure 1: Message Check

Procedure 2: Format Check

Procedure 3: Test Program Check

2-20

Procedure 4: Connector Check

Procedure 1

Message Check

Insert the Toshiba MS-DOS system disk in the FDD and turn on the power. If the T2000SXe loads Toshiba MS-DOS normally, refer to Procedure 2.

If Toshiba MS-DOS does not load normally, the following message or a similar message will appear on the screen. Refer to Procedure 4.

Place system disk in drive. Press any key when ready.

2-21

Non-System disk or disk error Replace and press any key when ready

Procedure 2

Format Check

Format a floppy disk using the Toshiba MS-DOS FORMAT command.

If the floppy disk does not format correctly, perform the following checks.

Check 1 Make sure the FDD indicator lights. If it does not light, refer to Procedure 4. If it

lights, refer to Check 2.

Check 2 Make sure the Toshiba MS-DOS FORMAT command was used correctly.

When the media type is 2DD, use the FORMAT/3 command. When the media type is 2HD, use the FORMAT command.

If the FORMAT command was used correctly, refer to Check 3. If the FORMAT command was not used correctly, try again. If the problem still exists, refer to Check 3.

2-22

Check 3 Clean the read/write head using the 3.5-inch FDD cleaning kit. If the problem still

EEh Write buffe r error

exists, refer to Procedure 3.

Procedure 3

Test Program Check

The FDD test program is stored on the T2000SXe Diagnostics Disk. After loading Toshiba MSDOS, run the Diagnostic Program (TESTCE20). Refer to Part 3 for detailed instructions about the FDD test.

Insert a formatted floppy disk and then start the FDD test. The error code and status are described in Table 2-3.

If an error occurs, refer to Check 1.

Code Status

Table 2-3 FDD error code and status

01h Bad command 02h Address mark not found 03h Write protected 04h Record not found 06h Media removed on dual attach card 08h DMA overrun error 09h DMA bounda ry error 10h CRC error 20h FDC error 40h Seek error 60h FDD not drive 80h Time out e rror (Not ready)

Check 1 If the Write protected message appears, remove the write protect tab on the

floppy disk. If any other error message appears, refer to Check 2.

2-23

Check 2 Make sure the floppy disk is formatted correctly. If it is correct, refer to Procedure

Procedure 4

Connector Check

The FDD is connected to the system unit by the FDD cable. Disassemble the system unit and check the FDD. Refer to Part 4 for instructions on how to disassemble the system unit and then perform the following checks.

Check 1 Make sure the FDD cable is firmly connected to the system board at PJ16.

If this cable is disconnected, connect it to the system unit and refer back to Procedures 2 and 3. If the problem still exists, refer to Check 2.

Check 2 The FDD may be defective. Replace the FDD with a new one and refer back to

2-24

Procedures 2 and 3. If the problem still exists, refer to Check 3.

Check 3 The system board may be causing the problem. Replace it with a new system board.

2.6 Hard Disk Drive Problem Isolation Procedures

This section describes how to determine if the hard disk drive is defective. Start with Procedure 1 and continue with the other procedures as instructed. The procedures described in this section are:

Procedure 1: Message Check

Procedure 2: Logical Format Check

Procedure 3: Test Program Check

Procedure 4: Connector Check

CAUTION: The contents of the hard disk will be erased when the HDD Problem Isola-

2-25

tion Procedures are executed. Before continuing, transfer the contents of the hard disk to floppy disks. This can be done with the Toshiba MS-DOS BACKUP command. Refer to the Toshiba MS-DOS manual for details.

Procedure 1

Message Check

When the power switch is turned on, the following message may appear on the screen.

If the following message appears, refer to Procedure 4.

ERROR ENCOUNTERED INITIALIZING HARD DISK DRIVE

ERROR INITIALIZING HARD DISK CONTROLLER

2-26

If the above message does not appear, refer to Procedure 2.

Procedure 2

Logical Format Check

Using the Toshiba MS-DOS system disk, partition the hard disk using the FDISK command. Then format the hard disk using the /s switch after the FORMAT command to transfer the system program.

2-27

If normal operation is restored, the HDD is OK. If normal operation is not restored, refer to Proce-

E0h Status error

dure 3.

Procedure 3

Test Program Check

The HDD test program is stored on the T2000SXe Diagnostics Disk. After loading Toshiba MSDOS, run the Diagnostic Program (TESTCE20) and perform the HDD test. Refer to Part 3 for detailed instructions about the HDD test.

If an error occurs during the HDD testing, an error code and status will be displayed; refer to Procedure 4. The HDD error code and descriptions are described in Table 2-4. If an error code is not generated, the HDD is OK.

Code Status

01h Bad command error 02h Bad address error 04h Record not found 05h HDC not reset 07h Drive not initialize

09h DMA bounda ry error 0Ah Bad s ector error 0Bh Bad tra ck error

10h ECC error

11h ECC recover ena ble

20h HDC error

40h Seek error

80h Time out error

AAh Drive not ready BBh Undefined CCh Write fault

2-28

Table 2-4 HDD error code and status

Procedure 4

Connector Check

The HDD is connected to the system board by the HDD board (PCB FT2HDx). Disassemble the system unit and check the HDD. Refer to Part 4 for instructions on how to disassemble the computer and then perform the following checks.

Check 1 Make sure the HDD board (orange flat cable) is firmly connected to the system

board and HDD.

If the board is disconnected, firmly reconnect it and refer back to Procedures 2 and

3. If the problem still exists, refer to Check 2.

Check 2 The HDD may be defective. Replace the HDD unit with a new one. If the error still

occurs, refer to Check 3.

Check 3 The system board may be damaged. Replace the system board with a new one. If

the error still occurs, refer to Check 4.

2-29

Check 4 The HDD board may be damaged. Replace the HDD board with a new one.

2.7 Keyboard Problem Isolation Procedures

This section describes how to determine if the keyboard is causing the T2000SXe to operate abnormally. Start with Procedure 1 and continue with the other procedures as instructed. The procedures described in this section are:

Procedure 1: Test Program Check

2-30

Procedure 2: Connector Check

Procedure 1

Test Program Check

The keyboard test program is stored on the T2000SXe Diagnostics Disk. After loading Toshiba MS-DOS, run the Diagnostic Program (TESTCE20) and perform the keyboard test. Refer to Part 3 for detailed instructions about the keyboard test.

If an error occurs, refer to Procedure 2.

2-31

If an error does not occur, the keyboard is OK.

Procedure 2

Connector Check

The keyboard is connected to the system board by 8-pin and 12-pin flat cables. Disassemble the system unit and check the keyboard cables. Refer to Part 4 for instruction on how to disassemble the system unit and then perform the following checks.

Check 1 Make sure the following cables are firmly connected to the system board.

Keyboard cable System board PJ7

System board PJ8

If these cables are not connected, connect them and refer back to Procedure 1. If the problem still exists, refer to Check 2.

Check 2 The keyboard or keyboard cables may be damaged. Replace the keyboard with a

new one, and refer back to Procedure 1. If the problem still exists, refer to Check 3.

Check 3 The keyboard controller on the system board may be damaged. Replace the system

2-32

board with a new one.

2.8 Display Problem Isolation Procedures

This section describes how to determine if the display is causing the T2000SXe to operate abnormally. Start with Procedure 1 and continue with the other procedures as instructed. The procedures described in this section are:

Procedure 1: Brightness and Contrast Volume Check

Procedure 2: Test Program Check

Procedure 3: Connector Check

2-33

Procedure 4: Replacement Check

Procedure 1

Brightness and Contrast Volume Check

The brightness and contrast dials are on the right side of the display unit. Use these dials to adjust the display screen to your satisfaction.

If only the brightness does not change, refer to Procedure 3. If only the contrast does not change, refer to Procedure 3.

2-34

If both the brightness and contrast do not change, refer to Procedure 2.

Procedure 2

Test Program Check

The display test program is stored on the T2000SXe Diagnostics Disk. This program checks the display controller on the system board. After loading Toshiba MS-DOS, run the Diagnostic Program (TESTCE20). Refer to Part 3 for detailed instructions about the display test.

If an error is detected, refer to Procedure 3.

2-35

If an error is not detected, the display is OK.

Procedure 3

Connector Check

The display unit has an LCD module, FL (Fluorescent Lamp), and FL inverter. The LCD module and FL inverter are connected to the system board with the LCD cable. The LED board (PCB FT2LEx) is connected directly to the system board. Either or both of these cables may be disconnected from the system board.

Disassemble the display unit and check these connectors. Refer to Part 4 for instruction on how to disassemble the system unit.

System board PJ12 LCD module CN1

LCD module CN2

System board PJ9 LED board

If these connectors are not connected, connect them and refer back to Procedures 1 and 2. If the

2-36

problem still exists, refer to Procedure 4.

Procedure 4

Replacement Check

In the T2000SXe, the FL inverter, LCD module, and system board are connected with the display circuits. Any of these units may be damaged. Refer to Part 4 for instructions on how to disassemble the system unit and then perform the following checks.

Check 1 Replace the FL inverter with a new one and recheck the display. If the problem still

exists, refer to Check 2.

Check 2 Replace the LCD module with a new one and recheck the display. If the problem

still exists, refer to Check 3.

Check 3 The system board may be damaged. Replace the system board with a new one and

recheck the display. If the problem still exists, refer to Check 4.

Check 4 The LED board may be damaged. Replace the LED board with a new one.

2-37

This page intentionally left blank

2-38

Part 3 Tests and Diagnostics

3-1

This page intentionally left blank

3-2

Contents

3.1 General ....................................................................................................................... 3-5

3.2 Using the T2000SXe Diagnostic Program................................................................... 3-6

3.3 Subtest Names ............................................................................................................ 3-9

3.4 System Test .............................................................................................................. 3-11

3.5 Memory Test ............................................................................................................. 3-12

3.6 Keyboard Test........................................................................................................... 3-14

3.7 Display Test.............................................................................................................. 3-15

3.8 Floppy Disk Test....................................................................................................... 3-21

3.9 Printer Test ............................................................................................................... 3-23

3.10 ASYNC Test ............................................................................................................. 3-25

3.11 Hard Disk Test .......................................................................................................... 3-27

3.12 Real Timer Test ........................................................................................................ 3-31

3.13 NDP Test .................................................................................................................. 3-32

3.14 Error Codes and Error Status Names......................................................................... 3-33

3.15 Hard Disk Test Detail Status..................................................................................... 3-35

3.16 Hard Disk Format ..................................................................................................... 3-37

3.16.1 Program Description ..................................................................................... 3-37

3.16.2 Operations ..................................................................................................... 3-38

3.17 Head Cleaning ........................................................................................................... 3-41

3.17.1 Program Description ..................................................................................... 3-41

3.17.2 Operations ..................................................................................................... 3-41

3-3

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 Program Description ..................................................................................... 3-44

3.19.2 Operations ..................................................................................................... 3-44

3.20 FDD Utilities ............................................................................................................ 3-45

3.20.1 Program Description ..................................................................................... 3-45

3.20.2 Operations ..................................................................................................... 3-46

3.21 System Configuration ............................................................................................... 3-50

3.21.1 Program Description ..................................................................................... 3-50

3.21.2 Operations ..................................................................................................... 3-50

3.22 SETUP ...................................................................................................................... 3-51

3.22.1 Program Description ..................................................................................... 3-51

3.22.2 Accessing the SETUP .................................................................................... 3-52

3.22.3 Changing SETUP Values ............................................................................... 3-53

3.22.4 SETUP Descriptions...................................................................................... 3-54

Tables

Table 3-1 Subtest names .................................................................................................. 3-9

Table 3-2 Hardware status bit........................................................................................ 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 Error register contents ................................................................................... 3-36

Table 3-6 Hard disk formatting sequence ...................................................................... 3-37

3-4

3.1 General

This part explains how to use the T2000SXe Diagnostic Program (TESTCE20) which tests the functions of all the T2000SXe hardware modules. This program is located on the T2000SXe Diagnostic Diskette. The Diagnostic Program is composed of 18 programs divided into the Service Program Module (DIAGNOSTICS MENU) and the Test Program Module (DIAGNOSTIC TEST MENU).

The Service Program Module provides the following eight functions:

1. DIAGNOSTIC TEST

2. HARD DISK FORMAT

3. HEAD CLEANING

4. LOG UTILITIES

5. RUNNING TEST

6. FDD UTILITIES

7. SYSTEM CONFIGURATION

8. SETUP

The Test Program Module contains the following ten 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 T2000SXe Diagnostic Program you will need the following:

❑ T2000SXe Diagnostics Diskette ❑ Formatted work disk for the FDD test ❑ Cleaning disk kit to clean the FDD heads ❑ Printer wraparound connector for the printer wraparound test ❑ RS-232-C wraparound connector for the ASYNC wraparound test

The following sections detail the tests within the Diagnostic Test function of the Service Program Module. Refer to Sections 3.16 through 3.22 for detailed information on the remaining seven Service Program functions.

3-5

3.2 Using the T2000SXe Diagnostic Program

To start the T2000SXe Diagnostic Program, follow these steps:

1. Make sure the computer is loaded with Toshiba MS-DOS version 3.3 or 4.0. Turn on the

T2000SXe and insert the T2000SXe Diagnostics Diskette in the floppy disk drive.

2. Change to the A drive. Then type A:TESTCE20 and press Enter.

3. The DIAGNOSTICS MENU will be displayed as shown below.

TOSHIBA personal computer T2000SXe 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 exit the Diagnostic Test function, press Ctrl + C. If a test is in progress, press Ctrl + Break to exit the test.

3-6

4. To execute the Diagnostic Test function from the DIAGNOSTICS MENU, type 1 and press

Enter. The following DIAGNOSTIC TEST MENU will be displayed, listing the ten tests.

TOSHIBA personal computer T2000SXe DIAGNOSTICS version x.xx (c) copyright TOSHIBA Corp. 1991

DIAGNOSTIC TEST MENU :

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 88 - FDD & HDD ERROR RETRY COUNT SET 99 - EXIT TO DIAGNOSTICS MENU

PRESS [1] - [99] KEY

Diagnostic Tests 1 through 10 are discussed in Sections 3.4 through 3.13. 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.

5. Enter the desired test number from the DIAGNOSTIC TEST MENU and press Enter. The

following message will be displayed.

SYSTEM TEST XXXXXXX

T2000SXe DIAGNOSTIC TEST Vx.xx [Ctrl]+[Break] ; test and

[Ctrl]+[C] ; key stop SUB-TEST : XX PASS COUNT: XXXXX ERROR COUNT: XXXXX WRITE DATA: XX READ DATA : XX ADDRESS : XXXXXX STATUS : XXX

SUB-TEST MENU : 01 - ROM checksum

02 - HW status 99 - Exit to DIAGNOSTIC TEST MENU

SELECT SUB-TEST NUMBER ?

NOTE: The message displayed by your T2000SXe may be slightly different than the one shown above.

3-7

6. Enter the desired subtest number from the subtest menu and press Enter. The following

message will appear.

TEST LOOP (1:YES/2:NO) ?

Selecting YES increases the pass counter by one each time the test cycle ends and then restarts the test cycle.

Selecting NO returns you to the subtest menu after the test is completed.

7. Type in 1 or 2 for the Test Loop and press Enter. The following message will appear.

ERROR STOP (1:YES/2:NO) ?

Selecting YES stops the test program when an error is found and displays the operation guide on the right side of the display screen as shown below.

ERROR STATUS NAME [[ HALT OPERATION ]]

1: Test End 2: Continue 3: Retry

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.

8. Type in 1 or 2 for the Error stop and press Enter to execute the subtest chosen from the

subtest menu. Table 3-1 in Section 3.3 lists the subtests available for each test on the DIAGNOSTIC TEST MENU.

Table 3-3 in Section 3.14 describes the error codes and error status for each error.

3-8

3.3 Subtest Names

06 Interrupt test

Table 3-1 describes the subtest for each test program in the Test Program Module.

Table 3-1 Subtest names

Test No.

1 SYSTEM

2 MEMORY

3 KEYB OARD

4 DISPLAY

5 FDD

6 PRINTER

7 ASYNC

Test name Subte st

Subtest name

No.

01 R OM checksum 02 HW status 01 R AM constant data 02 R AM address pattern data 03 R AM refresh 04 Protected mode 05 M emory module 06 B ackup memory 07 Hard-RAM 01 Pressed key display (86/88) 02 Pressed key code display 01 VRAM read/write 02 C haracter attributes 03 C haracter set 04 80*25/30 Characte r display 05 320*200 Graphics display 06 640*200 Graphics display 07 640*350/400/480 G raphics display 08 Display page 09 " H" pattern display/Border color 10 LED / DAC pallet 01 Sequential read 02 Sequential read/write 03 Random address/data 04 Write specified address 05 Read specified address 01 R ipple pattern 02 Function 03 Wrap around 01 Wrap around (board) 02 B oard (#1) <=> board (#2) 03 Point to point (send) 04 Point to point (receive) 05 C ard modem loopback (1200BPS)

3-9

Table 3-1 Subtest names (continued)

10 NDP 01 NDP test

Test No. Test name Subtest

No.

01 Sequential read 02 Address uniquence (uniqueness) 03 Random address/data 04 C ross talk & peek (peak) shift

8 HDD

05 Write/read/compare (CE) 06 Write specified address 07 Read specified address 08 ECC circuit 09 Sequential write 10 W-R-C spe cified address 01 R eal time

9 REAL TIM ER

02 B ackup memory 03 R eal time carry

Subtest name

3-10

3.4 System Test

0 Internal FDD 2DD 2HD

Subtest 01 ROM checksum

This test performs a ROM checksum test on the T2000SXe’s system board from address F0000h - FFFFFh (64KB).

Subtest 02 HW status

This test reads and displays the T2000SXe’s hardware status as shown below.

76543210

H/W status = 10001000

Bit7 — = Bit6 — CPU clock = 20MHZ Bit5 — Notch signal = 2HD Bit4 — FDD type = 2MB Bit3 — = Bit2 — Drive A/B = Ext. = B Bit1 — External FDD = OFF Bit0 — Internal FDD = 2HD

Once this information is displayed, press Ctrl + Break to return to the SYSTEM TEST menu. There is a slight delay of about 15 seconds before the Ctrl + Break keys can be pressed.

Table 3-2 describes the hardware bit status.

Table 3-2 Hardware bit status

Bit H/W s tatus 1 0

7 Reserved 6 CPU clock speed 10 MHz 20 MHz 5 Media type 2DD 2HD 4 FDD type 1 M B 2 MB 3 Reserved 2 Drive A/B B A 1 External FDD ON OFF

3-11

3.5 Memory Test

Subtest 01 RAM constant data

This subtest writes constant data to conventional memory (0 to 640KB), then reads and compares it with the original data.

The constant data is FFFFh, AAAAh, 5555h, 0101h, and 0000h.

Subtest 02 RAM address pattern data

This subtest writes address pattern data created by eXclusive-ORing (XORing) the address segment and address offset to conventional memory (0 to 640KB), then reads and compares it with the original data.

Subtest 03 RAM refresh (real mode)

This subtest writes 256-byte units of constant data to conventional memory (0 to 640KB), then reads and compares it with the original data.

The constant data is AAAAh and 5555h.

There is a delay between the write and the read operations.

Subtest 04 Protected mode

This subtest writes constant data and address data to extended memory (addressed 100000h to the max.), then reads and compares it with the original data.

The constant data is FFh, AAh, 55h, and 00h.

Subtest 05 Memory module

NOTE: To execute the this subtest, an optional memory card must be installed in the T2000SXe.

This subtest is the same as subtest 04; it is used for testing an optional memory card.

Memory module capacity is 2MB, 4MB, and 8MB.

After selecting subtest 05, the following message will be displayed.

Extended memory size (1:1MB,2:2MB,3:4MB,4:8MB) ?

Select the number that corresponds to the memory card installed in the T2000SXe.

3-12

Subtest 06 Backup memory

This subtest writes constant data to memory from address E8000h to EFFFFh, then reads and compares it with the original data.

The constant data is 00h, 55h, AAh, and FFh.

Subtest 07 Hard-RAM

NOTE: To execute this subtest, Hard-RAM must be set up on the system.

This subtest writes word units of constant data to memory (address E0000h to E7FFFh), then reads and compares it with the original data.

The constant data is 00h, 55h, AAh, and FFh.

Also, this subtest executes the paging test on page data.

3-13

3.6 Keyboard Test

Subtest 01 Pressed key display (86/88)

NOTE: Make sure the Num Lock key is off. If the Num Lock key is on, this subtest cannot be executed.

The keyboard layout, as shown below, is drawn on the display. When any key is pressed, the corresponding key on the screen is changed to the “*” (asterisk) character.

When a key is held down, the display will blink indicating that the auto-repeat function is enabled.

KEYBOARD TEST IN PROGRESS 301000

[Print:Alt+SysReq , Pause:Ctrl+Break] IF TEST OK, PRESS [DEL] THEN [ENTER] KEY

Subtest 02 Pressed key code display

When a key is pressed, the scan code, character code, and key top name are displayed on the screen in the format shown below.

The Ins, Caps Lock, Num Lock, Scroll Lock, Alt, Ctrl, Left Shift, and Right Shift keys are displayed in reverse 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

3-14

3.7 Display Test

Subtest 01 VRAM read/write

This subtest writes constant data and address data to video RAM (256KB), then reads the data written and compares it with the original data.

The constant data is FFFFh, AAAAh, 5555h, and 0000h.

Subtest 02 Character attributes (mode 1, 13h)

This subtest shows the following display modes and displays the foreground colors and intensified colors (16 colors or 16 levels of gray) using black, blue, red, magenta, green, cyan, yellow, and white from the color display.

Normal Intensified Reverse Blinking

The display below appears on the screen when this subtest is selected.

CHARACTER ATTRIBUTES

NEXT LINE SHOWS NORMAL DISPLAY. NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

NEXT LINE SHOWS INTENSIFIED DISPLAY. IIIIIIIIIIIIIIIIIIIIIIIIIIIIII

NEXT LINE SHOWS REVERSE DISPLAY.

RRRRRRRRRRRRRRRRRRRRRRRRRRRRRR

NEXT LINE SHOWS BLINKING DISPLAY BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB

3-15

After pressing Enter, 16 colors or 16 levels of gray for mode 13h are displayed as shown below.

320*200 GRAPHICS DISPLAY [ 13 ]

To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break.

Subtest 03 Character set

In this subtest the character set (00h to FFh) is displayed in the 40x25 character mode as shown below.

CHARACTER SET IN 40*25

PRESS [ENTER] KEY

To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break.

3-16

Subtest 04 80x25 and 80x30 Character display (mode 12)

In this subtest, the character string is displayed shifting one character line by line in the 80x25 and 80x30 character mode as shown below.

80*XX CHARACTER DISPLAY 012345678901234567890123456789012345678901234567890123456789012345678901234567 !”#$%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklm !”#$%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmn “#$%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmno #$%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnop $%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopq %&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqr &’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrs ‘()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrst ()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstu )*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuv *+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuvw +,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuvwx ,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuvwxy

-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuvwxyz ./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuvwxyz{ /0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuvwxyz{| 0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuvwxyz{|} 123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuvwxyz{|}~ 23456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuvwxyz{|}~•

3456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuvwxyz{|}~•Ç 456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuvwxyz{|}~•Çü

PRESS [ENTER] KEY

To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break.

Subtest 05 320x200 Graphics display (mode 4, D)

This subtest displays the following two color sets for the color display in the 320x200 dots graphics mode 4 and D as shown below.

Color set 1: Green, Red, Yellow Color set 2: Cyan, Magenta, White

320*200 GRAPHICS DISPLAY COLOR SET X : [X]

To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break.

3-17

Subtest 06 640x200 Graphics display (mode 6, E)

This subtest displays the even dots, odd dots, and all dots blocks in the 640x200 dots graphics mode 6 and E as shown below.

640*200 GRAPHICS DISPLAY : [X]

EVEN DOTS ODD DOTS ALL DOTS

DRIVEN DRIVEN DRIVEN

PRESS [ENTER] KEY

To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break.

Subtest 07 640x350/400/480 Graphics display (mode 10, 74, 12)

This subtest displays the even dots, odd dots, and all dots blocks in the 640x350 and 640x480 dots graphics mode 10 and 12 as shown below.

640*XXX GRAPHICS DISPLAY : [XX]

EVEN DOTS ODD DOTS ALL DOTS

DRIVEN DRIVEN DRIVEN

PRESS [ENTER] KEY

To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break.

3-18

Subtest 08 Display page

This subtest 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 0000000000000000000000000000000000000000

To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break. Once the subtest has displayed all seven pages, you will return to the DISPLAY TEST menu.

Subtest 09 “H” pattern display

This subtest displays 2000 “H” characters on the entire screen as shown below.

HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH

If an external CRT display is attached, seven border colors and the following message will appear for selecting the CRT.

Setting the CRT (1:Yes/2:No)

To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break.

3-19

Subtest 10 LED / DAC pallet

This subtest checks the LED Speed, Caps Lock, and Num Lock using key operations.

It also writes the 2Ah/15h data to 6 bits of 256x3 (RGB), then reads the written data and compares it with original data.

[ Speed/CRT/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)

(5) Press [ Fn ] key ! ... Overlay (on/off)

PRESS [ENTER] KEY

To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break.

3-20

3.8 Floppy Disk Test

CAUTION: Before running the floppy disk test, prepare a formatted work disk. Remove the Diagnostics Disk and insert the work disk into the FDD. The contents of the floppy disk will be erased.

OPERATION

1. When you select the floppy disk test from the DIAGNOSTIC TEST MENU, the following message will appear beneath the DIAGNOSTIC TEST MENU.

Test drive number select (1:FDD#1,2:FDD#2,0:FDD1&2) ?

2. Select the drive number containing the floppy disk to be tested and press Enter. The following message will appear.

Media in drive#x mode (0:2DD,1:2D,2:2D-2HD/2DD,3:2HD) ?

3. Select the media type of the floppy disk to be tested and press Enter. The following message will appear.

Test start track (Enter:0/dd:00-79) ?

4. Select the start track number and press Enter. Simply pressing Enter sets the start track at zero. The FLOPPY DISK TEST menu will appear after you select the start track number.

5. The following message appears above the FLOPPY DISK TEST menu and during each subtest.

FLOPPY DISK XXXXXXX

SUB-TEST : XX PASS COUNT: XXXXX ERROR COUNT: XXXXX WRITE DATA: XX READ DATA : XX ADDRESS : XXXXXX STATUS : XXX

The first three digits of the ADDRESS number are the cylinder number being tested, the fourth digit is the head number and the last two digits are the sector number.

The first digit of the STATUS number is the drive number being tested and the last two digits are the error status number.

3-21

CONTENTS

Subtest 01 Sequential read

This subtest performs the Cyclic Redundancy Check (CRC) with a continuous read operation of all the tracks on a floppy disk.

The tracks available for the floppy disk formats are: Double-sided, double-density (2D): Tracks 0 to 39. Double-sided, double-density, double-track (2DD) and Double-sided, high-density, double-track (2HD): Tracks 0 to 79.

The start track was specified when you selected the Floppy Disk Test from the DIAGNOSTIC TEST MENU.

Subtest 02 Sequential read/write

This subtest writes data to all tracks (as defined above) continuously, and then reads the data out and compares it with the original data. (The data pattern B5ADADh is repeated.)

Subtest 03 Random address/data

This subtest writes random data to random addresses on all tracks defined in subtest 01 and then reads the data out and compares it with the original data.

Subtest 04 Write specified address

This subtest writes the specified data to the specified track, head, and address. You can specify the test data, track number, and head number.

Subtest 05 Read specified address

This subtest reads the data from the specified track, head, and address. You can specify the track number and head number.

3-22

3.9 Printer Test

CAUTION: An IBM compatible printer must be connected to the system in order to execute this test. Make sure the setup option External FDD/PRT is set to Printer.

OPERATION

1. When you select this test, the following message will appear.

channel#1 = XXXXh channel#2 = XXXXh channel#3 = XXXXh

Select the channel number (1-3) ?

The XXXXh data in the above message shows the printer I/O port address.

The T2000SXe supports three printer channels. Select the printer channel number and press

3-23

Enter to display the PRINTER TEST menu.

CONTENTS

Subtest 01 Ripple pattern

This subtest prints characters for codes 20h through 7Eh line by line while shifting one character to the right at the beginning of each new line.

!”#$%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklm !”#$%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmn “#$%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmno #$%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnop $%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopq %&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqr &’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrs ‘()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrst ()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstu )*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuv *+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuvw

Subtest 02 Function

This subtest prints out the various print types shown below.

Subtest 03 Wraparound

NOTE: To execute this subtest, a printer wraparound connector must be connected to printer port. The printer wraparound connector (34M741986G01) wiring diagram is given in Appendix F.

This subtest checks the data control and status lines through the printer wraparound connector.

3-24

Both the output mode and bi-directional mode are tested.

3.10 ASYNC Test

Subtests 01 through 04 requires the following data format:

Method: Asynchronous Speed: 9600 bps Data: 8 bits and one parity bit (EVEN) Stop bit: One stop bit Data pattern: 20h to 7Eh

Subtest 01 Wrap around (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 given in Appendix F.

This subtest checks the data send/receive function through the wraparound connec-

tor.

Subtest 02 Board (#1) <=> board (#2)

NOTE: To execute this subtest, an RS-232-C direct cable (9-pin to 9-pin) must be connected to channels 1 and 2. The RS-232-C direct cable wiring diagram is given in Appendix F.

This subtest checks the data send/receive function through the RS-232-C direct

cable.

Subtest 03 Point to point (send)

NOTE: To execute this subtest, two machines must be connected with an RS-232-C direct cable. One machine should be set as ‘send’ (subtest 03) and the other set as ‘receive’ (subtest 04). The wiring diagram for the RS-232-C direct cable is given in Appendix F.

This subtest sends 20h through 7Eh data to the receive side, then receives the data back and compares it to the original data.

Subtest 04 Point to point (receive)

3-25

This subtest is used with subtest 03 as described above.

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 the data from the RS-232-C direct cable to the built-in modem. The same data is then sent from the modem and compared to the original data.

Subtest 06 Interrupt test

3-26

This subtest checks the Interrupt Request Levels (IRQ) 4, 3, and 5 from the send

side.

3.11 Hard Disk Test

CAUTION: The contents of the hard disk will be erased when subtest 02, 03, 04, 05, 06, 08, 09, or 10 is executed. Before running the test, transfer the contents of the hard disk to floppy disks. This can be done with the Toshiba MS-DOS BACKUP command. After the test, enter the Toshiba MS-DOS FDISK command, which will set the partition. Then enter the Toshiba MS-DOS FORMAT command. Refer to the Toshiba MS-DOS manual for details.

OPERATION

1. When you select the hard disk test from the DIAGNOSTIC TEST MENU, the following message will appear.

Test drive number select (1:HDD#1,2:HDD#2,0:HDD1&2) ?

2. Select the hard disk drive number to be tested and press Enter. The following message will appear.

HDC F/W error retry (1:yes,2:no) ?

3. This message is used to select the retry operation when the hard disk controller detects an error. Type in 1 or 2 and press Enter. The following message will appear.

Data compare error dump (1:no,2:yes) ?

4. This message is used to select the error dump operation when a data compare error is detected. Type in 1 or 2 and press Enter. The following message will appear.

Detail status display (1:no,2:yes) ?

3-27

5. This message is used to select whether or not the HDD status is displayed the screen. The

HDD status is described in Section 3.15. Type in 1 or 2 and press Enter. The HARD DISK TEST menu will appear.

6. During the hard disk test, the following message will appear.

HARD DISK TEST XXXXXXX

SUB-TEST : XX PASS COUNT: XXXXX ERROR COUNT: XXXXX WRITE DATA: XX READ DATA : XX ADDRESS : XXXXXX STATUS : XXX

The first three digits of the ADDRESS number are the cylinder number being tested, the

3-28

fourth digit is the head number and the last two digits are the sector number.

The first digit of the STATUS number is the drive number being tested and the last two digits are the error status code.

CONTENTS

Subtest 01 Sequential read

The sequential read test is a sequential reading of the 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)

The address uniqueness test writes unique address data to each sector, track by track, on the HDD. The data written to each sector is then read and compared with the original data. There are three ways in which the HDD can be read:

· Forward sequential

· Reverse sequential

· Random

Subtest 03 Random address/data

This subtest writes random data to random addresses to the cylinder, head, and sector on the HDD and then reads the written data back and compares it to the original data.

Subtest 04 Cross talk & peek (peak) shift

This subtest writes the eight types of worst pattern data (shown below) to a cylinder, then reads the data while moving from cylinder to cylinder.

Worst pattern data:

B5ADADh, 4A5252h, EB6DB6h, 149249h 63B63Bh, 9C49C4h, 2DB6DBh, D24924h

Subtest 05 Write/read/compare(CE)

This subtest writes the worst pattern data (B5ADADh) to the CE cylinder, and then reads the data out and compares it with the original data.

Subtest 06 Write specified address

3-29

This subtest writes specified data to a specified cylinder and head.

Subtest 07 Read specified address

This subtest reads data which has been written to a specified cylinder and head.

Subtest 08 ECC circuit

This subtest checks the Error Check and Correction (ECC) circuit functions of the specified cylinder and head.

Subtest 09 Sequential write

This subtest writes specified 2-byte data to all cylinders.

3-30

Subtest 10 W-R-C specified address

This subtest writes data to a specified cylinder and head, then reads and compares it with the original data.

3.12 Real Timer Test

Subtest 01 Real time

A new date and time can be inputted during the Real Time subtest.

To execute the Real Time subtest, follow these steps:

1. After the REAL TIMER TEST menu appears, select subtest 01. The following message will appear displaying the current date and time.

Current date : xx-xx-xxxx Current time : xx:xx:xx

Enter new date:

PRESS [ENTER] KEY TO EXIT TEST

2. If the current date is not correct, input the correct date at the 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) and press Enter. Press Ctrl + Break to return to the REAL TIMER TEST menu.

Subtest 02 Backup memory

This subtest writes to 50 bytes of the RTC backup memory (addressed 0Eh through 3Fh) as follows:

One bit of “on” data to addresses 01h through 80h. One bit of “off” data to addresses FEh through 7Fh and to addresses AAh

through 55h.

Then the subtest reads and compares this data with the original data.

Subtest 03 Real time carry

3-31

CAUTION: When this test is executed, the current date and time are erased.

This subtest checks if the real time clock correctly increments the date and time displayed (month, day, year, hour, minute, and second).

3.13 NDP Test

NOTE: To execute this test, a Numeric Data Processor (NDP) must be mounted on the system board.

3-32

Subtest 01 NDP test

80 Busy Line

This test checks the control word, status word, bus, and addition and multiplication functions.

3.14 Error Codes and Error Status Names

Device name Error code Error status name

(C OMMON) FF Data Compare Error

SYSTEM 01 ROM Checksum Error

01 Parity Error 02 Protected Mode Not Change 14 Memory Rea d/Write Error

MEMORY

FDD

PRINTER

15 RAM_ON_BIOS Unestablish

19 BIOS Copy Error (Syste m) 1A BIOS Copy Error (VGA) 1B H-RAM Mapping Error 1C H-RAM Read/Write Error

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 Buffe r Error

01 Time O ut

08 Fault

10 Select Line

20 Out of Paper

40 Power Off

3-33

Table 3-3 lists the error codes and error status names

06 Multipul Error

Device name Error code Error status name

01 DSR Off Time Out 02 CTS Off Time Out 04 RX-ENA BLE Time Out 08 TX-BUFFER Full Time Out 10 Parity Error

ASYNC

20 Framing Error 40 Overrun Error 80 Line Sta tus Error 88 Modem Status Error 33 NO CARRIER (C ard Modem) 34 ERROR (C ard Modem) 36 NO DIA L TONE (Card Modem) 01 Bad Command Error 02 Bad Address Error 04 Record Not Found 05 HDC Not Reset 07 Drive Not Initialize

09 DMA Boundary Error 0A Bad Se ctor Error 0B Bad Trac k Error

HDD

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 Fa ult

E0 Status Error F0 Not Se nse Error (FF)

01 No CO-PR OCESSOR

02 Control W ord Error

NDP

03 Status Word Error

04 Bus Error

05 Additional Error

3-34

Table 3-3 Error codes and error status names

(Error)

1"--The previous comand was terminated with some error.

Table 3-3 Error codes and error status names (continued)

3.15 Hard Disk Test Detail Status

When an error occurs in the hard disk test, the following message is displayed.

HDC status = XXXXXXXX

Detailed information about the hard disk test error is displayed on the screen by an eight-digit number. The first four digits represent the HDC error status and the last four digits are not used.

The HDC error status is composed of 2 bytes; the first 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

(Bus y)

6 DRDY

(Drive re ady)

5 DWF

(Drive write fault)

4 DSC

(Drive seek c omplete)

3 DR Q

(Data request)

2 CORR

(Corrected data )

1 IDX

(Index)

0 ER R

"0"--HDC is busy. "1"--HDC is rea dy. "0"--Hard dis k drive is not ready to accept any command. "1"--Ha rd disk drive is ready. "0"--DW F error is not detected. "1"--Write fault condition oc curs. "0"--The hard disk drive heads are not settled over a track. "1"--The hard disk drive heads are settled over a track. "0"--Drive is not rea dy to transfer data. "1"--Drive is ready for data transfer. "0"--Otherwise. "1"--Correctable data error is correc ted. "0"--Otherwise. "1"--Index is s ensed. "0"--Otherwise. "

3-35

The contents of the HDC status register are described in Tables 3-4 and 3-5.

0 Not used.

Bit Name Description

7 BBK

(Bad block mark)

6 UNC

(Uncorrectable)

"0"--Otherwise. "1"--A bad block mark is detected. "0"--There is no uncorrectable data error.

"1"--Uncorrec table data error has been detected. 5 Not used. 4 IDNF

(Identification)

"0"--Otherwise.

"1"--There was no ID field in the re quested sector. 3 Not used. 2 ABRT

(Abort)

1 TK0

(Tra ck 0)

"0"--Otherwise.

"1"--Illegal c ommand error or a drive status error occurs.

"0"--The hard disk has found track 0 during a recalibrate

c ommand.

"1"--The hard disk could not find track 0 during a

recalibrate command.

3-36

Table 3-4 HDC status register contents

Sector length (bps) 512 512

Table 3-5 Error register contents

3.16 Hard Disk Format

This function executes a hard disk formatting command. There are two types of hard disk formatting:

❑ Physical formatting ❑ Logical formatting

This Hard Disk Format function physically formats the hard disk and executes the following Hard Disk formats and check:

1. All track FORMAT

2. Good 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 floppy disks. This can be done with the Toshiba MS-DOS BACKUP command. See the Toshiba MSDOS manual for details.

3.16.1 Program Description

1. All track FORMAT

Physically formats all the tracks on the hard disk as shown in Table 3-6 below.

Sector sequences 1 1 Cylinde rs 0 to 979 0 to 822 Heads 0 to 4 0 to 3 Sectors 1 to 17 1 to 38

Items

Description

40M B 60MB

3-37

NOTE: Before executing the All track FORMAT, execute the Bad track CHECK to display a list of bad tracks on the HDD.

2. Good track FORMAT

The Good track FORMAT program formats a specified cylinder and track as a good track. If the good track has been formatted as a bad track, use this program to change the track to a good track.

3. Bad track FORMAT

The Bad track FORMAT program formats a specified cylinder and track as a bad track. If a bad track has been detected, use this program to label it as a bad track.

4. Bad track CHECK

The Bad track CHECK program searches the hard disk for bad tracks by reading data to all the tracks on the hard disk. A list of bad tracks is displayed when the program is completed. If an error other than a bad track is detected, the program is automatically terminated.

Table 3-6 Hard disk formatting sequence

3.16.2 Operations

CAUTION: After physical formatting is finished, enter the Toshiba MS-DOS FDISK command which will set the partition. Then execute the Toshiba MS-DOS FORMAT command. See the Toshiba MS-DOS manual for details.

1. Select the HARD DISK FORMAT function from the DIAGNOSTICS MENU. The following prompt appears.

DIAGNOSTICS - HARD DISK FORMAT : Vx.xx

1 - All track FORMAT 2 - Good track FORMAT 3 - Bad track FORMAT 4 - Bad track CHECK 9 - Exit to DIAGNOSTICS MENU

Press [NUMBER] key ?

2. All track FORMAT program

NOTE: Before executing the All track FORMAT, execute the Bad track CHECK to display a list of bad tracks on the HDD. This information is required in step (5) below.

(1) Selecting the All track FORMAT displays the following message.

3-38

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 (usually 1) and press Enter. The following display will

be displayed.

Unlock Format select (1:no,2:yes) ?

(4) Select whether or not the HDD has an unlock format and press Enter. If the system

unit contains a JVC HDD, select yes. If the system unit contains a Conner HDD, select no.

The following message will appear.

[ HDD TYPE ] : CYLINDER = xxxx [ HDD TYPE ] : HEAD = xx [ HDD TYPE ] : SECTOR = xx

[ WARNING : 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 following message will appear and all the cylinders in the hard disk will be formatted and checked.

[[cylinder, head = xxxx xx]]

(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 appear.

Format complete

(6) Press Enter to return to the HARD DISK FORMAT menu.

3. Good track FORMAT and Bad track FORMAT programs

(1) When the Good track FORMAT or Bad track FORMAT is selected, the following

message will appear.

3-39

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 (usually 1) and press Enter. The following message

will appear.

[ HDD TYPE ] : CYLINDER = xxxx [ HDD TYPE ] : HEAD = xx [ HDD TYPE ] : SECTOR = xx Press [Track number (CCCCHH) key ?

(4) Type the four digit track number and press Enter. The first three digits are the

cylinder number and the last digit is the head number. This formats either good tracks or bad tracks as selected.

NOTE: This program can 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 program

(1) When the Bad track CHECK program 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 (usually 1) and press Enter. The following message is

displayed, and the bad tracks on the hard disk are checked.

[ HDD TYPE ] : CYLINDER = xxxx [ HDD TYPE ] : HEAD = xx [ HDD TYPE ] : SECTOR = xx

3-40

[[cylinder, head = xxxx xx]]

(4) After checking the bad tracks on the hard disk the following message will appear.

Format complete

(5) Press Enter to return to the HARD DISK FORMAT menu.

3.17 Head Cleaning

3.17.1 Program Description

This function cleans the heads in the FDD by executing a series of head load/seek and read operations. A cleaning kit is necessary for cleaning the FDD heads.

3.17.2 Operations

1. Select the HEAD CLEANING function from the DIAGNOSTICS MENU and press Enter.

The following prompt is displayed.

DIAGNOSTICS - FLOPPY DISK HEAD CLEANING : Vx.xx

Mount cleaning disk(s) on drive(s). Press any key when ready.

2. Remove the Diagnostics Disk from the FDD. Insert the cleaning disk into the FDD and

3-41

press Enter.

3. When the Cleaning start message appears, the FDD head cleaning has started.

4. The display automatically returns to the DIAGNOSTICS MENU when the function is completed.

3.18 Log Utilities

3.18.1 Program Description

This program logs error information generated while a test is in progress and stores the results in RAM. If the POWER switch is turned off, the error information will be lost. The error information is displayed in the following order:

1. Error count (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])

This program can store data on a floppy disk or output the data to a printer.

3.18.2 Operations

1. Select the LOG UTILITIES function from the DIAGNOSTICS MENU and press Enter. The error information logged in RAM or on the floppy disk is displayed as shown below.

XXXXX ERRORS CNT TS-NAME PASS STS ADDR WD RD HSTS [ERROR STATUS NAME ]

001 FDD 02 0000 103 00001 00 00 FDD - WRITE PROTECTED 001 FDD 01 0000 180 00001 00 00 FDD - TIME OUT ERROR

Address

Error status

3-42

Pass count HDC status

Subtest number Read data

Test name Write data

Error count Error status name

[[ 1:Next,2:Prev,3:Exit,4:Clear,5:Print,6:FD Log Read,7:FD Log Write ]]

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. 4 Erases all error log information in RAM.

3-43

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.

3.19 Running Test

3.19.1 Program Description

The Running Test function automatically executes the following tests in sequence.

1. System test (subtest number 01)

2. Memory test (subtest numbers 01, 02, 03, 04, 06, 07)

3. Display test (subtest numbers 01 to 08)

4. FDD test (subtest number 02)

5. Printer test (subtest number 03)

6. ASYNC test (subtest number 01)

7. HDD test (subtest numbers 01, 05)

The system automatically detects the number of floppy disk drives connected to the T2000SXe.

3.19.2 Operations

CAUTION: Do not forget to load a work disk. If a work disk is not loaded, an error will be generated during the FDD testing.

1. Remove the Diagnostics Disk from the floppy disk drive and insert the work disk.

2. Select the RUNNING TEST function from the DIAGNOSTICS MENU and press 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 printer connector on the back of the T2000SXe to properly execute this test.

3. Type in 1 or 2 and press Enter. The following message will appear.

Async#1 wrap around test (Y/N) ?

Selecting Yes executes the ASYNC wraparound test. An RS-232-C wraparound connector

3-44

must be connected to the COMMS connector on the back of the T2000SXe to properly execute this test.

4. Type in 1 or 2 and press Enter to start the test.

5. This program is executed continuously. To terminate the program, press Ctrl + Break.

3.20 FDD Utilities

3.20.1 Program Description

The FDD Utilities function formats the FDD, copies floppy disks, and displays the dump list for both the FDD and HDD.

1. FORMAT

CAUTION: This program is only for testing a floppy disk drive. It is different from the Toshiba MS-DOS FORMAT command.

This program can format a floppy disk (5.25-inch/3.5-inch) in the following formats:

(1) 2D: Double-sided, double-density, 48/67.5 TPI, MFM mode, 512 bytes, 9 sectors/

(2) 2DD: Double-sided, double-density, double-track, 96/135 TPI, MFM mode, 512

(3) 2HD: Double-sided, high-density, double-track, 96/135 TPI, MFM mode, 512 bytes,

2. COPY

track.

bytes, 9 sectors/track.

18 sectors/track.

3-45

This program copies a source floppy disk to a target floppy disk.

3. DUMP

This program displays the contents of a floppy disk (both 3.5-inch and 5.25-inch) and the designated sectors of the hard disk.

3.20.2 Operations

1. Select the FDD UTILITIES function from the DIAGNOSTICS MENU and press Enter. The following message will be displayed.

[ FDD UTILITIES ]

1 : FORMAT 2 : COPY 3 : DUMP 9 : EXIT TO DIAGNOSTICS MENU

PRESS [1] - [9] KEY

2. FORMAT program

(1) Selecting FORMAT displays the following message.

DIAGNOSTICS - FLOPPY DISK FORMAT : Vx.xx

Drive number select (1=A:,2=B:) ?

(2) Select a drive number and press Enter to display the following message.

Type select (0:2DD-2DD,1:2D1-2D,2:2D-2HD,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 A: 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 TYPE ] : SECTOR = xx

Format start

3-46

After the floppy disk is formatted, the following message will appear.

(5) If you type 1 and press Enter, the display will repeat the message in step (3) above.

If you type 2, the display returns to the DIAGNOSTICS MENU.

3. COPY program

(1) When COPY is selected, the following message appears.

FLOPPY DISK FORMAT & COPY : Vx.xx Type select (0:2DD-2DD,1:2D-2D,2:2D -2HD,3:2HD-2HD) ?

(2) Select a media/drive type number and press Enter. A message similar to the one

below will be displayed.

[[track, head = xxx x]]

Format complete Another format (1:Yes/2:No) ?

Insert source disk into drive A: Press any key when ready.

(3) Remove the Diagnostics Disk from the FDD, insert the source disk, and press any

key. The following message will appear and start the copying to memory.

[ 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 and insert the formatted work disk; press any

key. The [[ track,head = xxx x ]] message will appear and start the copying to the target disk. When the amount of data is too large to be copied in one operation, the message in step (2) is displayed again.

After the floppy disk has been copied, the following message will appear.

3-47

(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 program

(1) When DUMP is selected, the following message appears.

DIAGNOSTICS - HARD DISK & FLOPPY DISK DUMP : Vx.xx Format type select (0:2DD,1:2D,2:2HD,3:HDD) ?

(2) Select a format type number. Type the number. If 3 is selected, the display will go

to the message in step (5) below.

(3) If 0, 1, or 2 is selected, the following message will appear.

Copy complete Another copy (1:Yes/2:No) ?

0: Displays a dump list for a floppy disk (2DD). 1: Displays a dump list for a floppy disk (2D). 2: Displays a dump list for a floppy disk (2HD). 3: Displays a dump list for a hard disk.

Select FDD number (1:A/2:B) ?

(4) Select an FDD drive number by typing in 1 or 2. The following message will ap-

pear.

Insert source disk into drive A: Press any key when ready.

(5) Remove the Diagnostics 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.

3-48

Toshiba T2000SXe User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual