Toshiba T1900 Series User Manual

1.1

Features

The Toshiba T1900 Series computers available. and T1900C offer excellent display legibility, battery operation The T

1900 Series

of

computers are among the highest and most advanced notebook

Utilizing advanced technology and high-speed components, the T 1900

computers consist

of

the following features:

o Microprocessor

The

i486SX-20 microprocessor operates

at

20

MHz, 3.3 Volts.

o Cache memory

8

KB

of

cache memory is stored in the i486SX microprocessor.

o Disk storage

The

internal 80, 120, average access time supports

2HD

floppy disks (1.44 Mbytes) and

or

200

Megabyte (MB)

of

19 milliseconds. A 3.5-inch Floppy Disk Drive (FDD)

Hard

2DD

o Memory

and

mM

PC/AT compatibility.

Disk Drive (HOD) has an

floppy disks (720 Kbytes).

T1900ff1900C

The Memory 3,456 compatible with the LotuslIntellMicrosoft Expanded Memory Specifications

(LIM-EMS).

o Monochrome

The high-resolution, Liquid Crystal Display (LCD) displays 64Ox480 pixels with a 64-level gray scale.

The T functions

o

STN

The high-resolution, Ultra Supertwist Nematic (Ultra STN) color Liquid Crystal

Display (LCD) displays 64Ox480 pixels with 226,981 colors for

and characters.

The functions

(RAM) 3.3 Volts. This includes 640

KB

of

extended memory which can

LCD

1900 internal display controller supports Video Graphics Array (VGA)

on

the internal display device.

color

LCD

T1900C internal display controller supports Video Graphics Array (VGA)

on

the internal display devices.

comes standard with 4

(TI900)

(TI900C)

MB

of

CMOS Random Access

KB

of

conventional memory and

be

utilized as expanded memory

both

graphics

1-1

1-2

o Keyboard

An easy-to-use

82184-key

enhanced keyboard with full-size

keys

and

standard

spacing

is

compatible with

mM

standard software.

o Batteries

The computer uses three different batteries: a

main

battery, a backup battery,

and a Real

Time

Clock (RTC) battery.

o Personal Computer Memory Card International Association (pCMCIA) card

slot A

PCMCIA slot enables you to install

an

MiNC

Toshiba card modem or other

industry-standard

PCMCIA Release 2.0 card.

o Parallel port

The Centronics-compatible parallel interface port serves two purposes: the port can

be used to connect a Centronics-compatible printer or an external 5

114"

floppy

disk

drive.

o RS-232-C port

A 9-pin serial interface port.

o Mouseport

The 6-pin mouse port on the back can accommodate

an

mM

PS/2 mouse.

o Keyboard port

The 6-pin keyboard port on the back

can

accommodate an

mM

PS/2 keyboard.

o Microsoft

Ball

Point mouse with Quick Port (BPQP) connection

The

BPQP port

is

located on the right

side

of

the TI9001TI900C.

o RGBport

The IS-pin

RGB

port on the back can accommodate

an

external video

display.

o Memory card slot

The memory card slot enables you to install a Toshiba optional memory card.

The T1900ff1900C Personal Computer is shown

in

Figure 1-1, and its system configuration

is shown in Figure 1-2.

Figure 1-1

T19001T190OC

Personal Computer

r---------------------------------------,

PJ11

PJ3

PJ6

PJ7

PJ4

PJ9

PJ2

FATSUe

System

Board

PJ1

PJ5

PJ10

PJ502

I

,

1-

________

_

Power

Supply

PJ206

PJ205

FATSLe

System

Board

PJ204

PJ203

PJ202

PJ201

Figure

J-2

TJ900ITJ90OC

System

Unit

Configuration

1-3

1.2 System Unit Block Diagram

Figure 1-3 is a block diagram

12V

<

CPU3V

)

~

:>I

IB5V

/I

B3V

vee

ATC3V

VGA

DMAx2.

RTC

Controller

en

::J

II)

c

en

-

I<

I(

I<.

<

of

the T1900fI'1900C system unit.

VCC : +5V B5V

: Badwp

ATC

3V:

BIOS

ROM

1281(x

CPU (CACHE

1488SXA

8bII

8KB)

MeV : Pawer

CPU3V : +3.3V 83V:

(J

System

ConboBer·

TII01-SI

PIC

x2.

PIT x 1,

FDCx1,YFOx1

G A

SIOx2

1

_IBSV

GA

---...::t

VRAM

5V

RTC

Backup

supply

mlcrapracas80r ( +3.3V

Baclwp3.3V

B3V

<;;>

(+3V)

System

Mernary

L._._._._

512K x 8bI1

K-

J

Serial

Pon

Prlnt.rlEld.

~

I

InLFDD

HOD

~

Monoctuom. LCD

or

STN

ColDr

(

+5V

)

(

+5V

)

(+3.3V) (+3.3V)

·'4

....•.

J

x 8

9P1

FDD

25

3.5

2.5

LCD

)

MBS1andard

I

12

OMB

Maxlnum

n

""-

C

<

~

~MCIA

Conl.-GA

..

vee

KBC

S

Figure 1-3

T19001T190OC

1

.h

PCMCIACard

lint.

Keyboard

~PS/2

Keyboardl

MCV

I

r-

Ball

PoInt

Mouse

-.

_.9Uk!.~!!..._

PS/2

Mouse

System Board Block Diagram

Pan

1-4

The T19001T1900C system board is composed

of

the following major components:

o An i486SX-20

CPU

o Super Integration (SI) T9901, which stores

the

following components:

•

Two

Direct Memory Access Controllers (DMAC): 82C37

•

Two

Programmable Interrupt Controllers (PIC): 82C59

• One Programmable Interval Timer (pIT): 82C54

• One Floppy Disk Controller (FOC): TC8565

• One Serial Input/Output Controller (SID): TC8570

• One

Variable Frequency Oscillator (VFO): TC8568

• One I/O Controller

• One Printer

Port

Controller

• One Speaker Controller

o A Real Time Clock (RTC)

A T9934 chip with 128 bytes

of

memory is used. Fourteen bytes are used for the calendar and clock, and the remaining 114 bytes are used for system configuration data.

OSC

(X3) generates 32.768

KHz

for RTC.

o A Keyboard Controller (KBC)

An M37452M4 chip is used.

The KBC, which includes the keyboard scan controller and keyboard interface controller, controls the internal keyboard, external keyboard port,

PS/2 mouse

port, and Ball Point Quick Port.

o Memory

Standard RAM: Cache memory: BIOS ROM:

Video RAM:

4MB

8 KB (inside CPU)

128 KB (96 KB are used)

This

ROM

contains Initial Reliability Test (IRT), Basic

Input/Output

System (BIOS), and video BIOS.

256KB

Optional memory cards expand memory

to

a maximum

of

20 MB.

o

VGA

display controller

The controller controls the internal and external VGA-compatible display.

1-5

1-6

o Clock Generator receives 14.31818

MHz

(Xl)

and

generates the

following

frequencies:

•

20

MHz

for the CPU

•

14.7456

MHz

for the COM

•

24

MHz

for the

FOC

and

VFO

•

16

MHz

is

used for

GA

• 14.31818

MHz

is

used for

T9901

(SI)

o Gate Array

System Controller Gate Array

This gate array

has

the following

functions:

• Memory Controller

- DRAM Controller

-

CPU Controller

- Compatible Bus Interface Controller

• Bus Controller

- Compatible Bus Interface Controller

- Compatible Access Controller

-

DMAC

Controller

-

110

Controller

• Address Latch Controller

- 32-Bit to 16-Bit Controller

- Address Latch

- DMA Address Generator

- Refresh Address Generator

•

110

Register

- Compatible

110

Port

-

Saving the data

of

the Register (in resume) Controller

- Toshiba

Special Register

• 20 MHz/10

MHz

Controller

• Data Bus Change Controller

• DataLatch

PCMCIA Gate Array

This gate array

has

the following functions:

• Memory Card Controller

- PCMCIA

IC

Card Controller

- Toshiba Modem

Card Controller

1.3 3.5-inch

Floppy

Disk Drive

The T1900ff1900C 3.S-inch Floppy Disk Drive (FDD) is a thin, high-perfonnance reliable drive that supports

720 KB (formatted) 2DD and 1.44 MB (formatted) 2HD 3.S-inch floppy

disks.

The

T1900ff1900C FDD is shown in Figure 1-4, and its specifications are described in Table

1-1.

Figure 1-4 3.5-inch

FDD

Table

1-1 3.5-inch

FDD

Specifications

Item

2MBMode

1 MBMode

Storage capacity

(KB) Unformatted 2,000 1,000 Formatted

1,311

737

Number of

heads

2

Number

of

cylinders

80

Access

time

(rna)

Track to track 3 3

Average

181

Head

settling time

15 15

Recording

track density

(tpi)

135

Data

transfer

rate

(Kbps)

500

250

Rotation

speed

(rpm)

300 300

Recording

method

Modified

Frequency

Modulation

(MFM)

1-7

1.4 2.5-inch Hard Disk Drive

The Hard Disk Drive (HOD) is a random access, non-volatile storage device.

It

has a non-

removable 2.5-inch magnetic disk and mini-winchester type magnetic heads.

T1900ff1900C supports 80, 120, and 200 MB hard disk drives.

The

T1900ff1900C

HDD

is shown in Figure 1-5, and its specifications are described in Table

1-2.

Figure 1-5 2.5-inch HDD

Table

1-2 2.5-inch HDD Specifications

SOMB

120MB

200MB

Item

(CP2084) (MK1422FCV) (CP2124) (MK2124FC)

(MK2224FC)

Stora~

capac:!}, (MB)

ormatte 85.2

86.0

121.6

130.1

213.0

Number

of

disks

2 1 2 2

2

Data heads 4 2

4

Data surfaces

4 2 4 4

4

Tracks

per

surface

1,096

1,501

1,123 1,155 1,560

Sectors per track

38(+1)

56(+1)

53 (+1)

55(+1)

-

Bytes

per

sector

512

512 512 512

Access time (ms)

Track

to

track

10

3

10

5

3

Average

19

15

17

12

Maximum

40

25

35

36

25

Rotation speed (rpm)

3,486

3,600

3,743

3,200

4,000

Data transfer rate (bps)

T oIfrom media

12M

17.6M

IBM

15.3M

18.9

to

31.6 M

Interleave

1

:1

1

:1

1

:1

1

:1

1

:1

Recording method

2-7RLU

1-7

RLL

2-7

RLU

1-7

RLL 1-7 RLL

1-7

RLL

1-7

RLL

1-8

1.5

Keyboard

The 82-(USA) and is connected The keyboard is shown in Figure 1-6.

See Appendix F for optional keyboard configurations.

or

84-(European) keyboard is mounted

to

the keyboard controller

on

the system board through a 19-pin flat cable.

on

the TI900/T1900C's system unit,

Figure 1-6 Keyboard

1-9

1.6 Sidelit Liquid Crystal Display (T1900)

The sidellt Liquid Crystal Display (LCD)

is

composed

of

an

LCD

module, a Fluorescent

Lamp

(FL), and

an

FL

inverter board.

1.6.1

LCD Module (T1900)

The T

1900

sidellt

LCD

supports

64Ox480

pixels with a High Resolution Graphics Subsystem

(HRGS)

and

64

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

block data

signal

and

4-bit lower block data signal),

and

shift

clock for data transmission.

All

signals are CMOS-level compatible.

The sidellt

LCD

is

shown

in

Figure

1-7,

and its specifications are described

in

Table

1-3.

Figure 1-7 Sidelit LCD

Table

1-3 Sidelit LCD Specifications

Item Specifications

Number

of

Dots

(clots)

640 x 480

Dot

pitch

(mm)

0.30

(W)

x 0.30 (H)

Display

area

(mm)

198

(W)

x 150 (H)

Contrast 17:1 (typically) FL

current

(rnA)

5.0

FL

frequency (KHz)

42

1-10

1.6.2 Fluorescent Lamp (FL) Inverter Board (T1900)

The FL inverter board supplies the high frequency current needed Specifications for the

Input

Output Voltage

FL

inverter board are described in Table 1-4.

Table

Voltage

Power

Current Frequency

1-4

FL

Inverter Board Specifications

Item Specifications

(VOC)

(W)

(VAC)

(rnA)

(KHz)

to

illuminate the FL.

5

2.2

950

4.2

38.5

1-11

1.7 STN

Color

LCD Display (T1900C)

The

STN

Color Liquid Crystal Display (LCD) contains

an

LCD

module,

two

(2) Fluorescent

Lamps (FLs) and an

FL

inverter board.

1.7.1

STN Color LCD Module (T1900C)

The

Tl900C

STN

color

LCD

is backlit and supports 64Ox480 pixels with a High Resolution

Graphics Subsystem (HRGS). This

HRGS includes the functions

of

Video Graphics Array

(VGA).

The

T1900C's

LCD receives vertical and horizontal synchronizing signals, 8-bit data signal, 4-

bit upper block data signal, 4-bit lower block

data signal, and shift clock for data transmission.

All signals are

CMOS-level compatible.

The

STN

LCD

is shown in Figure 1-8, and its specifications are described in Table 1-5.

Figure 1-8

STN

Color

LCD

Table 1-5

S1NColor

LCD

Specifications

Item

Specifications

Number of Dots (dots)

64Ox480

Dot

pitch

(mm)

0.3

(W)

x 0.3

(H)

Display area

(mm)

195

(W)

x 147

(H)

Contrast

18:

1

(Typically)

FLcurrent (mA) 5.0 FL

frequency

(KHz)

47

1-12

1.7.2 Fluorescent Lamp (FL) Inverter Board (T1900C)

The FL inverter board supplies high frequency current Specifications for the

FL

Input

Output

inverter are described in Table 1-6.

Table

1-6

FL

Inverter Board Specifications

Item Specifications

Voltage

Power Voltage Current

Frequency

(VOC)

(W) 6

(VAC)

(rnA)

(KHz)

to

light the

LCD's

5

1,000

5.0

42

Fluorescent Lamp.

1-13

1.8 Power Supply

_...-.The....,,~uppJl'

bnsw:l.suppl~s-Ji.'l-p.._kirul~~~..to._the_Tl_qOOLT_l_qOOC

__

~~~~!-!!_~r_~t-------~--:~-~~~:-------·--

The T1900ff1900C power supply board has one microprocessor

and

operates at 500

KHz.

The board performs the following functions:

1.

Determines

if

the

AC

adapter

or

battery

is

connected to the computer.

2.

Detects DC output and circuit malfunctions.

3.

Controls the LED indicator and speaker.

4. Turns the battery charging system on

and

off and detects a

fully

charged

battery.

5.

Determines

if

the power

can

be turned on and

off.

6. Provides more accurate detection

ofa

low battery.

7.

Calculates the remaining battery capacity.

The power supply board output rating

is

specified in Table

1-7.

Table

1-7

Power

Supply Board Output Rating

DC

R~ulatlon

Maximum

Use

for

Name

Voltage Toeranee Current

RiP~e

(V)

(%)

(mA)

(m

System logic, FDD, HOD,

VCC

+5

±5

3,500

100

Display RS-232-C, Flash

ROM 12V

+12

±5

120 240

RAM,

CPU

B3V

+3.3

±5

755 66

RS-232-C

M12V -7

to

-12.6

-

10

-

1-14

1.9 Batteries

The

T19001T1900C

o

Main

o Backup battery o

Real

Time

has

three types

battery pack

Clock

of

(RTC)

batteries:

battery

Specifications for these batteries are described in

Table

1-8 Battery Specifications

Battery

Main battery Backup battery RTC battery

1.9.1 Main Battery

The

removable

is

not attached.

on.

The

AutoResume,

Q Battery Indicator

The

Battery Indicator, located

removable

Name

backup

and

battery

main

battery pack

The

main

and

main

they

pack,

maintain

battery recharges the

battery

power

Material Nickel Metal Hydride Nickel Metal Hydride Lithium-Vanadium

is

the computer's

maintain

the state

the information in Hard

on

the top cover

supply

and

AC

adapter.

Table

backup

1-8.

Output Voltage

main

power source

battery

of

the computer

12V

1.2V

3.0 V

when

RAM.

of

the T1900ff1900C,

Capacity 2,400mAH 1,100 mAH

50mAH

when

the

AC

adapter

the system's power

when

you

enable

shows

the status

is

of

the

The

status

of

each Orange

Green

light

No

can

The

be

attached but

o

determined

battery

AC

is

adapter

it

The

battery

to reach The

battery charging minutes

by

color:

being

charged.

fully

charged.

is

disconnected

(AC

from

adapter

is

attached.)

is

attached.)

the computer, or the

cannot charge the battery for one

is

extremely

room

temperature before attempting to charge the battery.

is

almost

immediately

after the

AC

hot.

fully

discharged.

in

this

adapter

Allow

state,

it

is

connected.

the computer

The

will

of

battery

begin

AC

the

following

and

will

charging a

adapter

reasons:

the battery

not

begin

few

1-15

is

1.9.2 Battery Charging Control

Battery charging is controlled by a microprocessor that is mounted on the power supply. This microprocessor controls whether the charge is on

or

off

and detects a full charge when the

AC

adapter and battery are attached

to

the computer. The system charges the battery using quick

charge

or

trickle charge.

Q Quick Battery Charge

When the AC adapter is attached, there are two types

of

charge: quick charge when the

system is powered off, and trickle charge when the system is powered on.

Table 1-9 Time Required/or Charges

a/the

Main Battery

Charge Kind

of

Battery Charging Tlma

Quick

charge

(power off)

Nickel Metal Hydride About 2 hours

Trickle charge (power on)

Nickel

Metal Hydride About

48

hours

If

one

of

the following occurs, the battery quick-charge process stops.

1.

The battery becomes fully charged

2.

The AC adapter

or

battery is removed.

3. The battery

or

AC adapter output voltage is abnormal.

Q Trickle Battery Charge

When the main battery is fully charged and the AC adapter is attached, the power supply microprocessor automatically changes quick charge 1

or

2 to trickle charge.

1-16

1.9.3

Backup

Battery

The backup battery maintains data for AutoResume

to back-up the AutoResume or Hard-RAM data

is

priority:

AC

The backup battery on.

Table

1-10

shows the charging time

Table

Charging

Data

adapter>

is

charged

1-10 Backup Battery CharginglData Preservation

Preservation

Main

battery> Backup battery

by

the

main

battery or

and

data preservation period

Backup BaHery Time

Time

Power Power Power Period

On

Off Off

(full

(with

AC

(without

charge)

1.9.4 RTC Battery

and

Hard

RAM.

The power source used

determined according to the following

AC

adapter when the system

of

the backup battery.

is

powered

Time

16

Hours

adapter)

AC

adapter)

60

Hours

Doesn't charge

8

Hours

The

RTC

battery provides power to keep the current date, time

memory

while

the computer

preservation period

Table

is

turned

of

the RTC battery.

1-11 RTC Battery CharginglData Preservation

Charging

Data

Time

Preservation

RTC

off.

Table

BatteI'{

Power Power

Period

(full

1-11

shows the charging time

On

Off

charge)

24 24 Hours

and

other setup information in

and

data

Time

Hours

1

Month

1-17

...

2.1

Troubleshooting

Chapter 2 describes how TI900C

is causing the computer

1.

Upper and Lower System Boards

2.

Floppy Disk Drive

3.

Hard Disk Drive

4.

Keyboard

5.

Display

to

determine

if

a Field Replaceable Unit (FRU) in the T 1900/

to

malfunction. FRUs covered include the:

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

The following tools are necessary for implementing the troubleshooting procedures:

1.

T 1900/T 1900C Diagnostics Disk

2.

Phillips head screwdriver (2 mm)

3.

Toshiba MS-DOS system disk(s)

4.

2DD

or

2HD formatted work disk for floppy disk drive testing

5.

Cleaning kit for floppy disk drive troubleshooting

6.

Printer port LED

7.

RS-232-C wraparound connector

8.

Printer wraparound connector

9. Multimeter

10.

External 5.25-inch floppy disk drive

11.

External CRT

2-1

2.2 Troubleshooting Flowchart

Use

the flowchart in Figure 2-1 as a guide for determining which troubleshooting procedures

to

execute. Before going through the flowchart steps,

verifY

the following:

o Ask the user

password. wraparound board (F31PRT), then

will override the password function by erasing the current password.

o

VerifY Non-Toshiba operating systems can cause the computer

if

a password is registered, and

If

the user has forgotten the password, connect the printer port

turn the

with the customer that Toshiba MS-DOS is installed

if

it is, ask

POWER

him

switch on. The computer

to

or

her

to

on

the hard disk.

malfunction.

o Make sure all optional equipment is disconnected from the computer.

o Make sure the floppy disk drive is empty.

enter the

2-2

No

Perform

....

BoenI TroubIeahootlrici

Procedures inSection

Yes

Perform

BoenI

Procedu

Yes

~..:..:;.;::

Perform

..

Troubluhootlng

in

the

Troublnhootlrig

....

the System Board

Section

2.4.

Pow.-

Power

~ply

inSection

Procedu

2".3.

Supply

2".3.

....

Figure

2-1

Troubleshooting

No

~..,;.;.;:.

Perform

..

Trou"'hootlrlg

inSection 2.8.

No

Perform

the

....

Troubleshooting Procedures

inSection 2.6.

Flowchart

D.lay

Procedur.

Hard DIlle

(1/2)

DrIve

2-3

Insert

the

diagnostics disk

Into

the

FOO,

then

run

the

Cllagnostic

test

program.

System

is

normal.

No

Perform

the

Floppy Disk

Drive TroubleahOOtlng

Procedurea

in

section

"2.5.

After confirming which

Yes

diagnostic test

nas

detected

an

error,

perform

the

~priate

procedures

as

outlined

below.

Figure 2-1 Troubleshooting Flowchart

(212)

If

the diagnostics program cannot detect

an

error, the

problem

may

be intennittent.

The

Running

Test program

should

be

executed

several

times

to isolate the

problem.

Check

the

Log

Utilities

function

to

confirm

which

diagnostic test detected

an

error(s), then perform the

appropriate troubleshooting procedures

as

follows:

2-4

1.

Ifan error

is

detected

on

the

System

Test,

Memory

Test,

Display

Test,

ASYNC

Test, Printer Test, or

Real

Timer

Test,

perform

the

System

Board Troubleshooting

Procedures

in

Section

2.4.

~

2.

If

an

error

is

detected

on

the

Keyboard

Test,

perform the

Keyboard

Troubleshoot-

ing

Procedures

in

Section

2.7.

3.

Ifan error

is

detected

on

the

Floppy

Disk

Test,

perform the

Floppy

Disk Drive

Troubleshooting Procedures

in

Section

2.5.

4.

If

an

error

is

detected

on

the Hard Disk

Test,

perform

the Hard Disk

Drive

Troubleshooting Procedures

in

Section

2.6.

2.3 Power Supply Troubleshooting

The T1900fr1900C's power supply controls many functions and components in the computer. To detennine

if

the power supply is functioning properly, start with Procedure 1

and continue with the other procedures as instructed. Procedures described in this section are:

Procedure

1:

DC

IN

LED Indicator Check

Procedure

2:

Battery LED Indicator Check

Procedure

3:

System PCB Replacement Check

Procedure 1

DC

IN LED Indicator Check

The

T1900fr1900C's AC adapter converts AC power

to

DC power and contains a charging

circuit which charges the computer's batteries. The adapter connects

to

the DC

IN

socket

connector on the left side

of

the computer. When it is connected and the power is turned off,

the AC adapter charges the batteries.

The DC

IN

indicator displays whether

or

not the AC adapter is connected and supplying

power.

o When the DC

IN

indicator is orange, the AC adapter is connected and supplying

power

to

the computer.

o

If

the DC

IN

indicator does not light, the AC adapter is not supplying power to

the computer,

or

is not attached

to

the computer,

go

to

Check 1 .

..

o

If

the DC

IN

indicator is flashing orange, the AC adapter's voltage supply

is

abnormal

or

the power supply is not functioning properly, go

to

Check

1.

If

any

of

the above indicator conditions are abnormal, make sure the LED indicator lights are

not burned out before performing the following Checks.

Check 1 Make sure the correct AC adapter's cable is firmly plugged into the DC

IN

socket

on the back

of

the computer.

T1900 (PA2417U),

1.1

A T1900C (pA2478U), 1.7 A

Check 2

If

the DC

IN

indicator flashes orange when the AC adapter is connected, its

voltage output is abnormal. Connect a new AC adapter and

tum

the computer on

again

to

verify the indicator condition.

2-5

Check 3 The battery pack

may

be malfunctioning. Replace the battery pack with a new

one

and

tum the computer on

again.

If

the problem

still

exists, perform Check

4.

Check 4 Place the computer

in

an environment between -20°C

and

70°C until the unit

is

at the ambient temperature. Repeat the steps which caused the computer to operate abnormally.

If

the same problem still appears, perform Procedure

3.

Procedure 2

Battery LED Indicator Check

The battery LED indicator shows the battery charging status. The Battery LED, identified

by

a battery icon on the front

of

the computer, glows amber when the

AC

adapter

is

charging the

computer's battery pack.

a

If

the Battery LED indicator glows green, the

AC

adapter

is

connected and the

battery

is

fully

charged.

a

If

the Battery LED indicator glows amber, the

AC

adapter

is

connected and the

battery

is

being charged.

a

If

the Battery LED indicator does not glow, go to Check

1.

Check 1 Make sure the

AC

adapter's cable and

AC

cord are

firmly

plugged into the DC IN

socket and wall outlet.

If

these cables are connected correctly, go to Check

2.

Check 2 Make sure the battery pack

is

installed in the computer correctly.

If

the battery

pack

is

installed correctly, go to Check

3.

Check 3 Remove the battery pack and check that the battery terminal

is

clean and not bent.

•

a

If

the terminal appears dirty, clean it gently with a cotton swab dipped

in

alcohol.

o

If

the terminal looks bent

or

damaged, replace the lower system board.

a

If

the battery terminal

is

clean and not bent, go to Check

4.

Check 4 Connect a new

AC

adapter.

If

the battery LED indicator still does not glow, go

to CheckS.

Check S Install a new battery pack.

If

the battery LED indicator still does not glow, go to

Procedure

3.

2-6

Procedure 3

Power Supply Replacement Check

The power supply is built into the lower system board.

If

the power supply is damaged, the

lower system board must be replaced.

Refer

to

Chapter 4 for instructions on how

to

disassemble the T

1900rr

1900C, then perform

the following check:

Check 1 Replace the lower system board with a new one and restart the system.

problem still exists,

go

to

Check 2.

Check 2 Replace the upper system board with a new one and restart the system.

problem still exists, other

FRUs may be damaged.

If

the

•

2-7

2.4 System Board Troubleshooting

This

section describes how to determine

if

the upper or lower system board

is

defective or not

functioning properly.

Start with Procedure 1

and

continue with the other procedures as

instructed. Procedures described

in

this section

include:

Procedure

1:

Message Check

Procedure

2:

Printer Port

LED

Check

in

Boot Mode

Procedure

3:

Printer Port

LED

Check

in

Resume Mode

Procedure

4:

Diagnostic Test Program Execution Check

Procedure

5:

System Board Replacement Check

Procedure

1

Message

Check

When

the power

is

turned

on,

the

system

performs the Initial

Reliability

Test (IR T) installed

in

the BIOS

ROM.

The IRT tests

and

initializes each

IC

on the

system

boards.

o

If

an

error message

is

shown on the

display,

perform Check

1.

o

If

there

is

no

error message, go to Procedure

2.

o

If

Toshiba MS-DOS

is

properly loaded, go to Procedure

3.

Check 1

If

one

of

the

following

error messages

is

displayed

on the screen, press the

Fl

key

as the message instructs.

2-8

(a) * * *

Error

in

CMOS.

Bad

HDD

type

* * *

Check

system.

Then

press

[Fl]

key

.....

.

(b)

***

Error

in

CMOS.

Bad

battery

***

Check

system.

Then

press

[Fl]

key

.....

.

(c) * * *

Error

in

CMOS.

Bad

check

sum

* * *

Check

system.

Then

press

[Fl]

key

.....

.

(d)

***

Error

in

CMOS.

Bad

memory

size

***

Check

system.

Then

press

[Fl]

key

.....

.

(e)

***

Error

in

CMOS.

Bad

time

function

***

Check

system.

Then

press

[Fl]

key

.....

.

These errors occur

when

the system configuration preserved

in

the

RTC

memory

(CMOS-type

memory)

is

not the

same

as

the actual configuration or when the

data

is

lost.

If

you

press the

Fl

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

2.

Check 2

If

either

press

(a)

of

the following error messages [(a) or (b)]

any

key as the message instructs.

WARNING: RESUME

FAILURE.

is

displayed

on

the screen,

,

PRESS

(b)

WARNING: DATA YOU PRESS

ANY

KEY TO

MUST FORMAT HARD-RAM BEFORE

ANY

KEY TO

CONTINUE.

IN

HARD-RAM

CONTINUE.

WAS

LOST.

USE.

Error Message (a) appears when data stored in RAM under the resume function lost because the battery' has become discharged

Go to Procedure

3.

Error Message (b) appears when the error is detected during a read test Hard RAM or the data in Hard RAM

is

lost because the battery

or

the system PCB

is

has

damaged.

of

the

become

discharged.

If

any

other message appears, perform Check

3.

Check 3 The IRT checks the system boards. When the IRT detects an error, the system

stops or an error message appears. Refer

Table 2-1

IRT

E"or

to

Table

2-1

Messages (1/2)

for a list

of

error messages.

is

No.

1

2

3

4

TIMER

PIT MEMORY FIRST

CH.

ERROR

64KB

5 RTC ERROR

6 CRTC ERROR

7

10

11

12

13

14

15

VRAM

8

9 SYSTEM

KBC

SYSTEM

EXTENDED

DMA

DMAC

ERROR

PAGE

*1

*2

Error

REFRESH

MEMORY MEMORY

Message

2 OUT ERROR

ERROR

MEMORY

ERROR

PARITY MEMORY MEMORY REGISTER

ERROR ERROR

ERROR

ERROR ERROR PARITY

ERROR

16

PIC

*1

ERROR

2-9

Table

2-1

lRT

Error Messages

(212)

o

If

any

1 through 17,

No.

17 18 19 KBC ERROR

20

21

22 23 24

25

26

of

PIC

KEYBOARD ERROR

HOC

HDD HDD

NO

FDD ERROR

TIMER

RTC UPDATE ERROR

the following error messages is displayed,

19,20,25

Error

ERROR

12

ERROR

10 11

ERROR

INTERRUPT

Message

or

26

ERROR

go

to

Procedure

5:

o

If

Error

Message

Procedures in Section 2.7.

o

If

Error Message

Procedures in Section 2.6.

o

If

Error Message 23

Procedures in Section 2.5.

18

is displayed, go

21

or

22 is displayed,

or

24 is displayed, go to the FDO Troubleshooting

to

the Keyboard Troubleshooting

go

to

the

lIDO

Troubleshooting

2-10

Procedure 2

Printer Port LED Check

in

Boot Mode

The printer port LED displays the

IR

T status and test status by turning lights

on

and

off

as an

eight-digit binary value for boot mode. Figure 2-2

shows the printer port LED.

NOTE:

When

performing this

check,

the

external FDDIPRT option in

the

SETUP

program must be set

to

PRT

and

the

computer

set

to

boot

mode.

Figure

2-2 Printer Port LED

To

use the printer port LED, follow these steps:

1.

Turn

on

the T1900ff190OC's power, then set it

to

boot mode.

2.

Tum

off

the computer.

3. Plug the printer port

LED

into the computer's PRTIFDD connector.

4. Hold down

the

space bar and

tum

on

the

T1900ff1900C's

power.

5.

Read the

LED

status from left

to

right as you are facing the back

of

the computer.

6. Convert

the

status from binary

to

hexadecimal notation.

7.

If

the

final

LED

status is FFh (normal status),

go

to

Procedure 3.

8.

If

the

final

LED

status matches any

of

the test status values in Table 2-2,

go

to

Check I.

NOTE:

If

an

e"or

condition is detected by

the

IRT

test,

the

printer port LED

dis-

plays

an

e"or

code

after

the

IRT test

ends.

For

example,

when

the

printer port

LED

displays 22 and

halts,

the

IRT test has already completed

the

KBe

test.

In

this

instance,

the

IRT indicates an

e"or

has

been

detected during

the

system memory

test.

2-11

Table 2-2 Printer Port LED Boot Mode

E"or

Status (I12)

Error Status

Test Item Message

01H

Pre-init for

warm

start

--

test

05H

PIT

test

TIMER

CH.2

OUT

ERROR

PIT

ERROR

READ

DATA

=

XXH

WRITE

DATA

=

XXH

06H

PIT

initialization

--

07H

PIT

function test

MEMORY

REFRESH

ERROR

OAH

First

64KB

memory

test FIRST

64KB

MEMORY

ERROR

OBH

Sy.stem

memory

--

initialization

ODH

Interrupt vector

--

initialization

15H

RTCtest

RTC

ERROR

READ

DATA

=

XXH

WRITE

DATA

=

XXH

16H

CMOS

RAM

test

****Error

in

CMOS.

Bad

battery****

****Error

in

CMOS.

Bad

check

sum****

****Error

in

CMOS.

Bad

configuration****

****Error

in

CMOS.

Bad memory

size****

****Error

in

CMOS.

Bad

HDD

type****

****Error

in

CMOS.

Bad

time

function****

Check

system.

Then

press

[Fl]

key

18H

PIC

initialization

--

1FH

Display initialization

CRTC

ERROR

VRAM

ERROR

READ

DATA = XXXXXXXXH

WRITE

DATA = XXXXXXXXH

22H

KBCtest

KBC

ERROR

25H

.

System

memory

test

SYSTEM

MEMORY

ERROR

ADDRESS

=

XXXXXXXXH

READ

DATA

=

XXXXXXXXH

WRITE

DATA

=

XXXXXXXXH

SYSTEM

MEMORY

PARITY

ERROR

ADDRESS = XXXXOOOOH -XXXXFFFFH

30H

Extended

memory

test

EXTENDED

MEMORY

ERROR

ADDRESS

=

XXXXXXXXH

READ

DATA

=

XXXXXXXXH

WRITE

DATA = XXXXXXXXH

EXTENDED

MEMORY

PARITY

ERROR

ADDRESS = XXXXOOOOH -XXXXFFFFH

40H

DMA

page

register test

DMA

PAGE

REGISTER

ERROR

READ

DATA = XXH

WRITE

DATA = XXH

2-12

Table 2-2 Printer Port

LED

Boot

Mode Error Status

(212)

Error Status Test Item

Message

41H

DMACtest

DMAC

# 1 ERROR

READ DATA

=

XXXXH

WRITE

DA = XXXXH

DMAC

#2

ERROR

READ DATA

=

XXXXH

WRITE

DATA =

XXXXH

42H

DMAC

initialization

-

4AH

PIC

test

PIC

#1 ERROR

READ DATA

=

XXH

WRITE

DATA

=

XXH

PIC

#2

ERROR

READ DATA

=

XXH

WRITE

DATA =

XXH

54H

Keyboard

test KEYBOARD ERROR

55H

KBC

initialization KBC ERROR

5AH

Mouse

initialization

-

60H

HOD

initialization

HOC

ERROR

HOC

#0

ERROR

HOC

#1 ERROR

65H

FDD

initialization

NO

FDD ERROR

70H

Printer test

-

SOH

RS-232-C

test

-

90H

Timer initialization

TIMER

INTERRUPT

ERROR

RTC UPDATE ERROR

AOH

NDP

initialization

-

A6H

Expansion

VO

ROM

-

FFH

Expansion

system

ROM

-

...

Check

1

If

any

of

the

following

error codes are

displayed,

go

to Procedure

5.

OIh, 05h, 06h, 07h,

OAh,

OBh,

ODh,

15h, 16h, 18h, IFh, 22h, 25h,

30h, 40h,

4Ih,

42h, 54h, 55h, 65h, 70h, 80h, 90h,

AOh,

A6h

Check

2

If

Error Code 4Ab

is

displayed,

go

to the

Keyboard

Troubleshooting procedures

in

Section 2.7.

Check

3

If

Error Code 5Ab

is

displayed,

go

to the

HOD

Troubleshooting procedures

in

Section 2.6.

Check

4

If

Error Code 60b

is

displayed,

go

to the

FDD

Troubleshooting procedures

in

Section 2.5.

2-13

Procedure 3 Printer Port LED Check

in

Resume Mode

The printer port LED displays the IRT status and test status by turning lights on and

off

as an

eight-digit binary value for resume mode.

NOTE:

When

performing this

check,

the

external FDDIPRT option in

the

SETUP

program must

be

set

to

PRT

and

the

computer set

to

resume

mode.

To use the printer port LED, follow these steps:

1.

Tum

on the T1900rr1900C's power, then set it to resume mode.

2.

Tum

off

the computer.

3. Plug the printer port LED into the computer's

PRTIFDD connector.

4.

Tum

on

the computer.

5.

Read the LED status from left

to

right as you face the back

of

the computer.

6. Convert the status

from binary

to

hexadecimal notation.

7.

If

the

final

LED status is FFh (normal status), go to Procedure

4.

8.

If

the

final

LED status matches any

of

the test status values listed in Table 2-3, go

to

Procedure

5.

Table

2-3 Printer Port LED Resume

Mode

Error Status

Error

Status

Meaning

of

Status

OOH

RAM

BIOS

error

FOH

Press

the

reset

switch.

F1H

Suspend

process

error

(The

system

will

suspend

while

FDD

is

accessed,

etc.)

F2H

The

system

has

optional

ROM,

or

an

optional

card

(CGA,

MDA).

F4H

Backup

RAM

checksum

error

F5H

Main

memory

checksum

error

F6H

Video

RAM

checksum

error

F7H

Extended

memory

checksum

error

F8H

Backup

RAM

checksum

error

F9H

Main

memory

checksum

error

FAH

Video

RAM

checksum

error

FBH

Extended

memory

checksum

error

FDH

Card

modem

error

(The

card

modem

will

be

removed

while

the

system

is

in

resume,

etc.)

FEH

Password

error

(The

password

will

be

erased

before

it

is

suspended.)

2-14

Procedure 4

Diagnostic

Test

Program

Execution

Check

Execute the following tests from the Diagnostic Test Menu. Refer to Chapter 3, Tests

and

Diagnostics, for more information

on

how

to

perform these tests.

l.

System Test

2.

Memory Test

3.

Printer Test

4.

ASYNC Test

If

an error is detected during these tests, go to Procedure

5.

ProcedureS

System

Board

Replacement

Check

The upper (FATSU*)

or

lower (FATSL*) system board may be damaged. (Note that the

power supply is mounted on the FATSL

*.) Refer to the T1900IT1900C parts catalog for a

breakdown

of

the computer's system boards.

Disassemble the

T1900IT1900C following the steps described in Chapter 4, Replacement

Procedures,

then perform the following checks.

NOTE:

To

determine whether to

first

replace the FA TSU*

or

the FATSL * during the

troubleshooting procedures:

1.

Check the

e"or

status

on

the printer

port

LED

and

locate the status

in

Table 2-2

or

2-3.

2.

Compare the

e"or

status with the tables

in

Appendix B.

a

If

the

e"or

is

related to

an

IC

or

connector listed

in

Table B-1

or

B-2, replace

the FA

TSU* (upper system board) first.

a

If

the

e"or

is

related to

an

IC

or

connector listed

in

Table

B-3

or

B-4, re-

place the FA TSL

* (lower system board) first.

As

an

example,

if

the

e"or

status indicates a keyboard (KBC) problem, replace the

FATSU* since the keyboard controller (lC15)

is

located

on

the upper system board, then

continue with the troubleshooting procedures. However,

if

the

e"or

indicates a

PCMCIA problem, replace the FATSL

*

first

since the PCMCIA Gate

A"ay

(lC203) is

located

on

the lower system

board

Check 1 Replace the upper

or

lower system board.

Check 2 Ifnormal operation is restored after replacing the upper (or lower) system board,

the original board is probably defective.

Check 3

If

normal operation is not restored, replace the original system board, then swap

out the remaining system board with a new one.

Check 4

If

normal operation is still not restored, either both system boards

or

another FRU

is

probably defective. The defective unit must be isolated by performing the

T1900IT1900C Diagnostics Program.

2-15

2.5 Floppy Disk Drive Troubleshooting

This

section describes how to determine

if

the T1900IT1900C's intemal3.5-inch

floppy

disk

drive

is

functioning

properly.

Perform the steps below starting

with

Procedure 1

and

continuing with the other procedures

as

required.

Procedure

1:

FDD

Head

Cleaning

Check

Procedure

2:

External 5.25-inch

FDD

Check

Procedure

3:

Diagnostic Test Program Check

Procedure

4:

Connector Check

and

Replacement

Check

Procedure

1

FDD

Head

Cleaning

Check

FDD

head

cleaning

is

an

option

available

in

the Diagnostics Program. A detailed description

of

the

head

cleaning

operation

is

given

in

Chapter

3,

Tests

and

Diagnostics.

After loading Toshiba

MS-DOS,

run

the Diagnostics Program, then

clean

the

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 on the T1900ff1900C, go to Procedure

2.

Procedure

2

External

5.25-inch

FDD

Check

The

floppy

disk controller on the computer's lower

system

board controls the internal

and

the

external

FDD.

To

determine

if

either the

system

board or the internal

FDD

is

defective,

check

the

following

items:

Check 1 Connect

an

external 5.25-inch

FDD

to the

PRTIFDD

port

and

make

sure it

functions

properly.

Ifit

does,

perform Procedure

4.

Ifit"doesn't, perform Check

2.

NOTE:

To use

an

external 5.l5-inch FDD.

set

the external FDDIPRT option

in the

SETUP program to

FDD A or

FDD B.

Check 2 Replace the lower

system

board with a

new

one

following

the steps

in

Chapter

4,

Replacement Procedures.

2-16

Procedure 3

Diagnostic Test Program Execution Check

The Floppy Disk Drive Diagnostic Test program is stored on the T1900!f1900C Diagnostics Disk. After loading Toshiba

MS-DOS, run the diagnostics program. Refer to Chapter 3,

Tests

and

Diagnostics, for more information about the diagnostic test procedures.

NOTE:

As

noted in Chapter

3,

be sure to

remove

the

Diagnostics Disk

and

replace

it with a formatted work disk before continuing with

the

Diagnostic

Test

Program.

Floppy disk drive test error codes and their status names are listed

in

Table 2-4.

Table

2-4 Floppy Disk Drive Error Codes

and

Statuses

Code Status

01h

Bad

command

02h

Address

mark

not

found

03h

Write protected

04h

Record

not

found

06h

Media

removed

on

dual

attach card

OSh

OMA

overrun error

09h

OMA

boundary

error

10h

CRC

error

20h

FOC

error

40h

Seek error

60h

FOO

not

drive

SOh

Time out error

(Not

ready)

EEh

Write buffer error

FFh

Data

compare

error

If

any errors other than those listed

in

Table 2-4 occur while executing the FDD diagnostics

test,

go

to

Check I.

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

Check 2 Make sure the floppy disk is formatted correctly.

Ifit

is, go

to

Procedure

4.

2-17

Procedure 4 Connector Check and Replacement Check

The 3.S-inch Floppy Disk Drive is connected to the lower system board by the FDD cable. This cable may become disconnected from the system board

or

damaged. Disassemble the

T1900ff1900C 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 lower system board.

FDD

PJ202 I

Lower

System

Board

If

this cable is disconnected, connect it

to

the system board and repeat Procedure

3.

If

the FDD is still not functioning properly, perform Check 2.

Check 2 The FDD

or

its cable may be defective

or

damaged. Replace the FDD with a new

one following the steps

in Chapter 4.

If

the FDD is still not functioning properly,

perform Check 3.

Check 3 Replace the lower system board with a new one following the steps

in Chapter

4.

2-18

2.6 Hard Disk Drive Troubleshooting

r""--

........

___

.....

ir

rri"'fuom.Mt&&\~wif.t!~o:{·~u-B;9l."'Btive-~::BB7-is·{l.ii\.,\.rul1mi?ptJ}te:i!;'~'f;-vi-il,-Li-'~-li,-v-"-IWU~u-I-~~-------------------------------

below starting with Procedure

1.

Continue with the other procedures

as

instructed.

Procedure

1:

Partition Check

Procedure

2:

Message Check

Procedure

3:

Format Check

Procedure

4:

Diagnostic Test Program Execution Check

CAUTION: The contents

of

the

hard

disk will be erased when the

HDD

troubleshoot-

ing

procedures are executed Before beginning. transfer the contents

of

the

hard

disk to

afloppy

disk(s) using the Toshiba

MS-DOS

BACKUP command. Refer to the Toshiba

MS-DOS

Manual

for

more information about how to perform this command.

Procedure 1

Partition

Check

Insert the Toshiba

MS-DOS

system

disk

and

tum

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"

from

the

FDISK

menu.

If

Drive C

is

listed, go to Check

3.

If

Drive C

is

not

listed,

return

to the

FDISK

menu

and

choose the option to create a

DOS

partition on

Drive

C.

Then

recheck the

system.

If

the

problem

still

exists, go to Procedure

2.

Check 3

If

Drive C

is

listed

as

active

in

the FDISK

menu,

go to Check

4.

If

Drive C

is

not

listed

as

active, return to the FDISK

menu

and

choose the option to set the active

partition for Drive

C.

Then recheck the

system.

If

the problem

still

exists,

go

to

Procedure

2.

Check 4

Remove

the

system

disk

from

the

FDD

and

cold boot the computer.

If

the prob-

lem

still

exists, go to Procedure

2.

Otherwise, the

HOD

is

operating

normally.

2-19

Procedure

2

Message

Check

When the

T1900lf1900C's

HDD

does not function properly, some

of

the following error

messages may appear

on

the display. Start with Check 1 below and perform

the

other checks

as instructed.

Check 1

If

any

of

the following messages appear, perform Check 2.

If

the following

messages

do

not appear, perform Check 4.

Note

that

the

error messages appear

on

the display for five (5) seconds, then

disappear.

HDC

ERROR

or

HDD

10

ERROR

or

HDD

11

ERROR

Check 2

If

either

of

the following messages appears, 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

Check 3 Using the Toshiba MS-DOS system disk, install a system program

on

the hard

disk using

the

SYS command.

If

the following message appears

on

the display, the system program

has

been

transferred

to

the

lIDD.

Restart the T1900ff1900C.

If

the error message still

appears, perform Check 4.

System

transferred

Check 4 The

lIDD

is connected

to

the

lower system board through an

lIDD

flexible cable.

2-20

This cable can become disconnected

or

damaged. Disassemble the TI9001

TI900C

as described in Chapter 4, Replacement

Procedures.

If

the

lIDD

is not

connected, reconnect it

to

the system board and

retum

to

Procedure I.

If

the

lIDD

is firmly connected

to

the system board, perform Procedure 3.

PJ203

Lower System Board

HOD

Procedure 3 Format Check

The

T1900ff1900C's

lIDO

is fonnatted using the low level fonnat program and the MS-

DOS

FORMAT program.

To

fonnat the lIDO, start with Check 1 below and perform the

other. steps as required.

Check 1

Using the Toshiba MS-DOS system disk, partition the hard disk using the FDISK

command. Fonnat the hard disk using

FORMAT

C:ISIU

to

transfer the system

program

to

the lIDO.

If

the following message appears on the display, the

lIDO

is

formatted.

Format

complete

If

any other error message appears

on

the display, refer

to

the

Toshiba

MS-DOS

Manual for more information and perform Check 2.

Check 2

Using the T1900ff1900C Diagnostic Disk, format the HOD with a low level format option. Refer

to

Chapter 3, Test

and

Diagnostics for more information

about the diagnostic program.

If

the following message appears on the display, the

lIDO

low level format is

complete.

Format

complete

Partition and format the HOD using the MS-DOS FORMAT command.

If

you cannot format the HOD using the Test and Diagnostic program, go

to

Procedure 4.

2-21

Procedure 4 Diagnostic Test Program Execution Check

The

lIDD

test program is stored in the T1900ff1900C Diagnostics Disk. Perform all

of

the

lIDD

tests in the Hard Disk Drive Test. Refer

to

Chapter 3, Tests

and

Diagnostics, for more

information about the HOD test program.

If

an error is detected during the HOD test, an error code and status will be displayed;

perform Check

1.

The error codes and statuses are described in Table 2-5.

If

an error code is

not generated, the HOD is operating properly.

Table

2-5 Hard Disk Drive Error Codes

and

Statuses

Code

Status

01h

Bad

command

02h

Bad

address

mark

04h

Record

not

found

05h

HOC

not

reset

07h

Drive

not

initialized

08h

HOC

overrun

(ORQ)

09h

OMA

boundary

error

OAh

Bad

sector error

OBh

Bad

track error

10h

ECC

error

11h

ECC

recover

enable

20h

HOC

error

40h

Seek error

SOh

Time-out error

AM

Drive

not

ready

BBh

Undefined

error

CCh

Write fault

EOh

Status error

EEh

Access

time-out error

FFh

Data

compare

error

Check 1 Replace the

lIDO

unit with a new one following the instructions in Chapter

4.

If

the HOD is still not functioning properly, perform Check 2.

Check 2 Replace the lower system board following the instructions in Chapter 4.

2-22

2.7 Keyboard Troubleshooting

To determine

if

the T1900tr1900C's keyboard is functioning properly, perform the following

procedures.

Start with Procedure 1 and continue with the other procedures as instructed.

Procedure

1:

Diagnostic Test Program Execution Check

Procedure

2:

Connector and Replacement Check

Procedure

1

Diagnostic

Test

Program

Execution

Check

Execute the Keyboard Test in the Diagnostic Program. Refer

to

Chapter 3,

Tests

and

Diagnostics, for more information on how

to

perform the test program.

If

an error occurs,

go

to

Procedure 2.

If

an error does not occur, the keyboard is functioning

properly.

Procedure 2

Connector

and

Replacement

Check

The keyboard is connected

to

the upper system board by a 19-pin flat cable. This cable may

be disconnected

or

damaged. Disassemble the T1900tr1900C as described in Chapter 4,

Replacement Procedures, and perform the following checks:

Check 1 Make sure the keyboard cable is not damaged and is connected

to

the system

board.

Keyboard

Cable

PJ4

Upper

System

Board

If

this cable is damaged, replace the keyboard with a new one.

If

the cable is

disconnected, firmly reconnect it, then perfonn Procedure 1 again.

If

the keyboard

is still not functioning properly, perfonn Check

2.

Check 2 The keyboard controller on the system board may be damaged. Replace the upper

system board. Refer

to

Chapter 4, Replacement Procedures for more information

about how

to

replace the upper system board.

2-23

2.8 Display Troubleshooting

This section describes how

to

determine

if

the T1900ff1900C's display is functioning

properly.

Start with Procedure 1 and continue with the other procedures as instructed.

Procedure

1:

Contrast Control Check

Procedure

2:

External CRT Check

Procedure

3:

Diagnostic Test Program Execution Check

Procedure

4: Connector Check

Procedure

5: Replacement Check

Procedure

1

Contrast

Control

Check

Contrast is changed by the contrast dial.

If

the display is blank,

go

to

Check

1.

If

you cannot

change the brightness and contrast,

go

to

Check 3.

If

the contrast does not change when you

turn

the contrast dial, perform Procedure 2.

Procedure

2

External

CRT

Check

Connect the external CRT

to

the T

1900ff

1900C' s external monitor port, then boot the

computer. The computer automatically detects the external CRT even

if

Resume mode is

enabled.

If

the external CRT works correctly, the internal LCD display may be damaged. Go

to

Procedure 4.

If

the external CRT appears

to

have the same problem as the internal LCD, the display

controller may be damaged.

Go

to

Procedure 3.

Procedure 3 Diagnostic

Test

Program

Execution

Check

The Display Test program is stored

on

the T1900ff1900C Diagnostic Disk. This program

checks the display controller

on

the upper system board (FATSU*). After loading Toshiba

MS-DOS, run the Diagnostic Program. Refer

to

Chapter 3,

Tests

and

Diagnostics,

for

details.

Ifan

error is detected,

go

to

Procedure 4.

Ifan

error is not detected, the display is

functioning properly.

2-24

Procedure 4

Connector Check

The Display unit has an LCD module, Fluorescent Lamp (FL), display switch, and FL inverter board. The FL and FL inverter board are connected by two cables. The LCD module and upper system board are connected by

two

signal cables as shown below. Any

of

these cables

may

be

disconnected.

Disassemble the display unit and check the following cable connections. Refer

to

Chapter 4

for more information about

how

to

disassemble the computer.

I

FL

FlCH

I

FL inverter board

CH1

--

Upper

System

board

I

g:

LCD

unit I

PJ7

PJ11

I

L

Display

switch

J

Figure 2-3

T1900

Display Connections

I

FL

I

FLCN1

I

FlCN2

FL

inverter board

I

L

FL

I

-

CH1

Upper

System

board

r

eN1

PJ8

J

CN2

LCD

unit

PJ7

CN3

PJ11

I

DispIa,

switch

I

Figure 2-4

T1900C

Display Connections

If

any

of

these cables are not connected, firmly reconnect them and repeat Procedures 1 and

2.

If

the problem still exists, perform Procedure

5.

2-25

Procedure

5 Replacement

Check

The FL, FL inverter board, LCD module, and upper system board are connected

to

the display

circuits. Any

of

these components may be damaged. Refer to Chapter 4 for instructions on

how

to

disassemble the computer and then perform the following checks:

o

If

the FL does not light, perform Check

1.

o

If

characters are not displayed clearly, perform Check 3.

o

Ifsome

screen functions do not operate properly, perform Check 3.

o

If

the FL remains lit when the display is closed, perform Check 4.

Check 1 Replace the FL with a new one

and

test

the

display again.

If

the problem still

exists, perform Check 2.

Check 2 Replace the FL inverter board with a new one and test the display again.

If

the

problem still exists, perform Check 3.

Check 3 Replace the LCD module with a new one and test the display again.

If

the

problem still exists, perform Check

4.

Check 4 Replace the display switch with a new one and test the display

again.

If

the

problem still exists, perform Check

5.

Check 5 Replace the display cable with a new one and test the display again.

If

the

problem still exists, perform Check 6.

Check 6 The upper system board may

be

damaged. Replace the system board with a new

one and test the display

again.

2-26

3.1

The Diagnostic Test

This chapter explains how to use the T1900rr1900C's Diagnostic Test program (TESTCEI9)

to test the functions

of

the T1900rr1900C's hardware modules. The Diagnostics Program

is

stored on the T1900rr1900C Diagnostic Disk and consists

of

18

programs that are grouped

into the Service Program Module (DIAGNOSTIC MENU) and the Test Program Module

(DIAGNOSTIC TEST).

The DIAGNOSTIC MENU consists

of

the following eight functions.

a DIAGNOSTIC TEST a HARD DISK FORMAT a HEAD CLEANING a LOG UTILITIES a

RUNNING TEST

a FDD UTILITIES a

SYSTEM CONFIGURATION

a SETUP

The DIAGNOSTIC

TEST option contains the following ten functional tests:

a SYSTEM TEST a MEMORY TEST a KEYBOARD TEST a DISPLAY TEST a FLOPPY DISK TEST a

PRINTER TEST

a ASYNCTEST a HARD DISK TEST a REAL TIMER TEST a PCMCIA TEST

The following equipment

is

needed to perform some

of

the T1900tr1900C Diagnostic test

programs.

a The T 1900tr 1900C Diagnostics Disk (all tests) a A formatted working disk for the Floppy Disk Drive test (all tests) a 3.5-inch 2HD/2DD disk for interna13.5-inch FDD

a 5.25-inch 2D disk for external 5.25-inch FDD

3-1

o A cleaning kit

to

clean the floppy disk drive heads (Head Cleaning)

o A PCMCIA wraparound connector for the I/O card test (pCMCIA test)

o A printer wraparound connector for the printer wraparound test (printer test)

o An RS-232-C wraparound connector for the RS-232-C port wraparound test

(ASYNC test)

The following sections detail the tests within the Diagnostic Test function TIC TEST option menu. Refer remaining seven Service Program Module functions.

to

Sections 3.16 through 3.22 for detailed infonnation

of

the DIAGNOS-

on

the

3-2

3.2 Executing the Diagnostic

Test

Toshiba MS-DOS is required

to

run the TI900fI'I900C diagnostics program. To start the

program, follow these steps:

I. Tum on the computer and allow it

to

boot from

the

A: drive.

2.

Insert the

TI900ffl900C

Diagnostics disk in the computer's internal floppy disk

drive.

3. At the system prompt (A:), type TESTCE19, and press Enter.

The following menu

will

appear:

TOSHIBA

personal

computer

T1900

DIAGNOSTICS

version

X.XX

(c)

copyright

TOSHIBA

Corp.

19XX

DIAGNOSTICS

MENU

1 - DIAGNOSTIC TEST 2 -

HARD

DISK

FORMAT

3 -

4 -

HEAD

CLEANING

5 -

LOG

UTILITIES

6 -

RUNNING

TEST

7 -

FDD

UTILITIES

8 -

SYSTEM

CONFIGURATION

9 - EXIT

TO

MS-DOS

o - SETUP

iJ.~~

Enter Esc

Select

items Specify Exit

NOTE:

To

exit

the

T19001T190OC

DIAGNOSTIC

TEST

menu,

press

the

Esc

key.

If

a test program is

in

progress,

press Ctrl + BreIIk

to

exit

the

test

program,

or

press CtrI + C

to

stop

the

program.

3-3

3-4

4.

To

select the DIAGNOSTIC TEST menu from the DIAGNOSTICS MENU, set

the highlight bar

to

1, and press

Enter.

The following menu appears:

TOSHIBA

personal

computer

T1900

DIAGNOSTICS

version

X.XX

(c)

copyright

TOSHIBA

Corp.

19XX

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

- PCMCIA TEST

88

-

FDD & HDD

ERROR

RETRY

COUNT

SET

99

-

EXIT

TO

DIAGNOSTICS

MENU

iJ.-++-

Enter Esc

Select

items Specify Exit

Refer

to

Sections 3.4 through 3.13 for detailed descriptions

of

Diagnostic Tests 1

through

10. Function 88 sets the floppy disk drive and hard disk drive error retry

count. Function 99 exits the submenus

of

the Diagnostic Test and returns

to

the

Diagnostic Menu.

5.

Select the option you want

to

execute and press

Enter.

The following message

appears:

SYSTEM

TEST

SUB-TEST :

XX

xxxxxxx

T1900

DIAGNOSTIC

TEST

VX.XX

[Ctrl] + [Break] ; test

end

[Ctrl]

+ [C] ;

key

stop

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

03 -Version

check

99 -

Exit

to

DIAGNOSTIC

TEST

MENU

fJ.-H-

Enter Esc

Select

items Specify Exit

NOTE:

The

menu

displayed

by

your

T19001T1900C

may

be

slightly different from

the

one

shown

above.

6.

Select the desired subtest from the subtest menu and press messages appear:

Enter.

The

follOwing

TEST

ERROR

Use the arrow keys

Selecting by the user. Selecting

LOOP

STOP

YES

for

:

YES

:

YES

to

move the cursor

lEST

LOOP sets the test

NO

returns the screen

to

the desired option and press

to

run continuously until it is halted

to

the

complete.

YES

Selecting and displays the operation guide

for ERROR STOP stops the test program when an error is found

on

the right side

of

below:

ERROR

STATUS

NAME

HALT

OPERATION

1:

Test

2:

Continue

3:

Retry

[[

These three selections have the following functions:

1:

Terminates the test program and exits

to 2: Continues the test. 3: Restarts the test from the error.

Enter.

main

menu after the test is

the display screen as shown

]]

end

the subtest menu.

Table 3-1 in

Use the arrow keys

Selecting

NO

Section 3.3 describes the function

to

move the cursor

to

the desired option and press

for ERROR STOP keeps the test running even

of

each test

on

the subtest menu. Table 3-3 in

Section 3.14' describes the error codes and error status for each error.

Enter.

if

an error is found.

3-5

3.3 Subtest Names

Table 3-1 lists the subtest names for each test program in the DIAGNOSTIC TEST menu.

Table

3-1 Subtest Names (1/2)

No.

TestName

Subtest

No.

Subtest

Item

1

SYSTEM

01

ROM

checksum

02 HlWstatus 03

Version

check

2

MEMORY

01

RAM

constant data

02

RAM

address pattern data

03

RAM

refresh

04

Protected

mode

05

Memory

module

06

Backup

memory

07

Hard-RAM

08 cache

memory

3

KEYBOARD

01

Pressed

key

display

(82/84)

02

Pressed

key

code

display

03

PS/2

Mouse

connect

check

04

DCBP

connect

check

4

DISPLAY

01

VRAM

readlwrite

02 Character attributes 03 Character set 04

80*25/30

Character display

05

320*200

Graphics display

06

640*200

Graphics display

07

640*35014001480

Graphics display

08

Display

page

09 "H" pattern display /Border color

10

LED/DAC

pallet

11

64

color display

5

FDD

01

Sequential

read

02

Sequential

readlwrite

03

Random

address/data

04 Write specified address

05

Read

specified address

6

PRINTER

01

Ripple

pattern

02

Function

03

Wraparound

3-6

Table 3-1 Subtest Names

(212)

No.

Test Name

Subtest No.

Subtest Item

7

ASYNC

01

Wraparound

(board)

02

Board

(#1)

<=>

board

(#2)

03

Point

to

point

(send)

04

Point

to

point

(receive)

05

Card

modem

Ioopback

(2400BPS)

06

Interrupt test

S

HOD

01

Sequential

read

02

Address

uniqueness

03

Random

address/data

04

Cross

talk & peak shift

05

Write/read/compare

(CE)

06

Write

specified address

07

Read

specified address

08

ECC

circuit

09

Sequential

write

10

W-R-C

specified address

9

REAL

TIMER

01

Realtime

02

Backup

memory

03

Real

time carry

10

PCMCIA

01

VO

card

test

3-7

3.4 System Test

To execute the System Test, select 1 from the DIAGNOSTIC TEST menu, press

Enter

and follow the directions displayed on the screen. Move the highlight bar to the subtest you want to execute and press Enter.

Subtest

01

ROM checksum

The ROM checksum tests the system boards from address

FOOOOh

to FFFFFh

(64KB).

Subtest 02 HIW status

Bit

7

6

5 4 3

2 1 0

3-8

This test reads and displays the hardware status as shown below:

76543210

H/W

status

=

10001000

Bit7 Bit6

CPU

clock

=

20MHz

BitS

Notch

signal

=

2HD

Bit4

FDD

type

=

2MB Bit3 Bit2

Drive

AlB

=

Ext.

= B

Bit1

External

FDD

OFF

BitO

Internal

FDD = 2HD

Table 3-2 describes the hardware bit status for each bit tested. Pressing

Enter

returns you to the subtest

menu.

Table

3-2

Hardware

Bit Status

HlWStatU8 1

0

Reserved

--

CPU

clock

speed

20 MHz 20 MHz

Media

type

200

2HD

FDDtype

1.6MB

2MB

Reserved

--

DriveNB

Ext. = A Ext. = B

External FDD

ON OFF

Internal

FDD

200

2HD

Subtest

03

Version check

This subtest checks the version

of

the following

items:

o BIOSROM o BOOTROM

o

KBC

Version

o PS Microprocessor Version

The subtest compares these items to the reference data stored

in the test

program. When the read information

is

lower than the reference data, the test

program displays the following screen

image.

To exit this screen, press the S

key.

When

the read information is

higher,

the display

is

unchanged.

ROM-BIOS ROM

(BOOT)

KBC

Version

PS

Micom

Version

=

VI.

00

=

VI.

00 VI.26 Vl.35

I

Reference data

OK

VI.10

OK

VI.OO

NG

VI.

00

OK

VI.35

I

Current data

3-9

3.5 Memory Test

To execute the Memory Test, select 2 from the DIAGNOSTIC TEST

menu,

press Enter

and follow the directions displayed on the screen. Move the highlight bar to the subtest you want to execute and press

Enter.

Subtest

01

RAM constant data (real mode) This subtest writes a 256-byte unit

of

constant data

to

conventional memory (0 to 640 KB), then reads the new data and compares the results with the original data.

The constant data is

FFFFh,

AAAAh,

5555h, and

OOOOh.

Subtest 02 RAM address pattern data (real mode)

This subtest writes address pattern data created by the exclusive-ORing

(XORing) to the address segment and address offset

in

conventional memory

(program end to

640 KB), then reads the new data and compares the results

with the original data.

Subtest

03

RAM refresh (real mode)

This subtest writes a 256-byte unit

of

constant data to conventional memory (0

to 640 KB), then reads the new data and compares the results with the original

data.

The constant data is AAAAh and 5555h.

NOTE:

There

is a short delay

between

write

and

read

operations,

depending

on

the

size

of

the

data.

Subtest 04 Protected mode

3-10

NOTE:

The

CONFIG.SYS

file must

be

configured without expanded memory

manager programs such as

FMM386.EXE,

FMM386.SYS or

QFMM386.SYS.

Also,

the

HIMFM.SYS must

be

deletedfrom

the

CONFIG.SYSfile.

This subtest writes constant data and address data to extended memory (maximum

address 100000h), then reads new data and compares the results with the

original data.

The constant data is FFh,

AAh,

55h, and

OOh.

Subtest 05 Memory module

NOTE:

To execute this subtest,

an

optional memory

card

must be installed

in the computer.

This subtest functions the same as Subtest 04, except it is used for testing an optional memory card. Memory module capacity is 2, 4, 8, and 16 MBs.

After selecting

Subtest 05, the following message will appear:

Extended

memory

size

(1:2

MB,2:4

MB,3:8

MB,4:16

MB)

?

Select

the

number that corresponds

to

the memory card installed in the T 1900/

T1900C.

Subtest 06

Backup Memory

This subtest writes constant data

to

memory from address C8000h

to

CFFFFh,

then reads new data and compares the results with

the

original data.

The constant data is

OOOOh,

5555h, AAAAh, and FFFFh.

Subtest 07 Hard-RAM

Subtest 08

This subtest writes a

word

unit

of

constant data

to

memory (address

EOOOOh

to

E7FFFh), then reads the new data and compares the results with

the

original

data.

The constant data is

0000h, 5555h, AAAAh, and FFFFh.

This subtest also executes the paging test for page data.

Cache memory

To

test the cache memory, a pass-through write-read comparison

of'5A'

data

is run repeatedly

to

test area

('7000':'Program'

size

to

'7000':=7FFF' (32

KB»

to

check

the

hit-miss ratio (onloffstatus). One test takes 3 seconds.

Number

of

miss hit < Number

of

hit ~ OK

Number

of

miss hit ~ Number

of

hit ~ Fail

3-11

3.6

Keyboard

Test

To

execute the Keyboard Test, select 3 from the DIAGNOSTIC TEST MENU, press Enter

and follow the directions displayed on the screen. The Keyboard Test contains subtests that

test the

T1900ff1900C's keyboard actions and mouse connections. Move the highlight bar to

the subtest you want

to

execute and press Enter.

Subtest

01

Pressed key display (82184)

3-12

NOTE: The

Nllm

Lock

and the

Overlay

modes 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

"l1li"

character. Holding a key down enables the auto-repeat

function which causes the key's display character

to

blink.

KEYBOARD

TEST

IN

PROGRESS

301000

•••••••••••••••

••••••••••••

• •

••••••••••••••

•

•••••••••••

• •

•

••••••••••

•

••

PrtSc Pause

•

•••••••

[Alt]

+

[SysReq]

[Ctrl] + [Break]

to

test

end

If

test

OK,

Press

[Del]

then

[Enter]

Key

Subtest

02

Subtest

03

Pressed key code display

When a

key

is

pressed, the scan code, character code,

and

keytop

name

are

displayed on the screen

in

the format shown below. The Ins, Caps

Lock,

Num

Lock,

ScroD

Lock, Alt, Ctrl, Left Shift,

and

Right Shift keys are displayed

in

reverse screen mode when pressed. The scan codes, character codes,

and

keytop

names

are shown

in

Appendix

E.

KEYBOARD

TEST

IN

PROGRESS

302000

Scan

code

=

Character

code

=

Key

top

Ins

Lock

Caps

Lock

Num

Lock

Scroll

Lock

Alt

Ctrl

Left

Shift

Right

Shift

PRESS

[Enter]

KEY

PS/2 mouse connect check

NOTE:

To

execute

the

PS/2 mouse connect

check,

a PS/2 mouse must

be

connected

to

the

computer.

This subtest checks whether a PS/2 mouse

is

connected or not.

If

this test does not detect

an

error, it returns to the subtest

menu.

Ifit

detects

an

error, the following message appears:

KBD -MOUSE

INTERFACE

ERROR

[[

HALT

OPERATION

]]

1:

Test

end

2:

Continue

3:

Retry

3-13

Subtest 04

DCBP Connect Check

NOTE:

To execute the DCBP connect check, a ball-point mouse must be

connected to the computer.

This subtest checks whether a ball-point mouse is connected

If

this test does not detect an error, it returns

If

it detects an error, the following message appears:

KBD-DCBP INTERFACE

ERROR

to

the subtest menu.

[[

HALT

OPERATION

1:

Test

2:

Continue

3:

Retry

or

end

not.

]]

3-14

3.7 Display Test

To execute the Display Test, select 4 from the DIAGNOSTIC TEST

menu,

press Enter and

follow the directions displayed on the screen. The Display Test contains eleven subtests that

test the

T1900tr1900C's display

in

various modes. Move the highlight bar to the subtest you

want to execute and press Enter.

Subtest

01

Subtest 02

VRAM ReadlWrite

This subtest writes constant data

FFFFh,

AAAAh, 5555h,

OOOOh

and address

data to video RAM (256KB). The data

is

then read from the video RAM

and

compared to the original data.

Character Attributes (mode I, 13h)

This subtest 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-level gray scale) using black,

blue,

red, magenta, green,

cyan,

yellow,

and

white from the color

display.

The display below appears on the screen when

this subtest

is

executed.

CHARACTER

ATTRIBUTES

SHOWS

NORMAL

DISPLAY.

SHOWS

INTENSIFIED DISPLAY.

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

SHOWS

REVERSE

DISPLAY.

SHOWS

BLINKING

DISPLAY

BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB

00

08

BLACK

01 09

BLUE

04

OC

RED

05

OD

MAGENTA

02

OA

GREEN

03

OB

CYAN

06

OE

YELLOW

07

OF

WHITE

PRESS

[Enter]

KEY

3-15

Subtest 03

3-16

After pressing

Enter,

16 colors

or

16 gray scales

of

mode 13h appear in the

320x200 graphics mode as shown below:

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

Pressing

Enter

toggles between the

two

tests.

To

exit this subtest and return

to

the DISPLAY

TEST

menu, press

Ctrl

+

Break.

Character Set

In this subtest, the character set (addressed

OOh

to

FFh) is displayed in the

40*25 character mode as shown below.

CHARACT&R

SET

IN

4111-25

~

.....

·aO"'8~~*lIcn.-a"'"

• • ...-

... ~ ...

~.

()_+

..

-./

VD.234DS789

:J<->?ABCOBPC8HI.lXLMNO

PQRST1JVWXYZ

"J-_

'a))cdefgh:ljklft1napqa-.'uvw

xyz( I )-6GU

•••••

~

•••

1S.1.XAa_A:&OOa.i190UC£'¥

Pr.~

.s.6Q.fl.1I:t.QL--

..

"&«»II'-IH~

..

~.g

n .. •

...

~,

Uor 1-+

...

.........

IH'

"I

Ii

1LL..-rf+I

,....

rocerw:Ec:r\.1Tlleae-.en

Press

[Enter]

KEY

To

exit this subtest and return

to

the DISPLAY

TEST

menu, press Ctri +

Break.

Subtest 04

80x25/30

In

this subtest, the character string is displayed shifting one character

right, line by line, in the

80.U

0123'5678J0123'5678J0123'5678J012365678J012365678J012365678J012365678J01236567

1""~'()·+,-./012365678JI,<.>'.ABCDBPQBIJ.lLMBDPQR8fUVWJYZ[\]A_·abc~fgbljkl.

1""~'()·+,-./012365678JI'<.>'~IJ.lLMBDPQRSTUVWZYZ[\]A_·abc~fgbljklmD

••

.'-"()·+,-./0123'5678JI,<.>r.ABCDBPQBIJKLKaOPQRSTUVWZYZ[\1·_'abc4efghl~klaDOp

'~'()·+,-./012365678JI,<.>'~PGBIJKLMROPQRSTUVWZYZ[\]A_·abc4.fgbljklmDopq

~'()·+,-./012365678JI,<.>'~GBIJ.KLKROPQR8TUVWZYZ[\]A_·abc~fgbljklmDOpqr

.'()·+,-./0123'5678JI'<.>'~I~~[\lA_·abc~fgbljklmDOPqr.

·()·+,-./012365678JI,<.>'a&BCDKPGBI~[\]A_·abg~fgbljklmDOpqr.t

()·+,-./012365678JI'<.>'~IJ.lLMBDPQRSTQVWZYZ[\]A_·abc4efgbljklaDOpqr.tu

)·+,-./012365'78JI,<.>r.~PGBIJKLMROPQR8TUVWZYZ[\lA_·abc4.fgbljklmDopqr.tuv

·+,-./012365'78JI,<.>'.~GBIJ.KLKROP~[\lA_·~fgbljklmDOpqr.tuvw

+,-./012365678JI,<.>'.ABCDaPQBIJKLMBOPQ~[\lA_·abc~fgbljklmDOPqr.tuv.x

,-./012365'78JI,<.>'a&BC~IJKLMROPQRSTQVWZYZ[\]A_·~fgbljklmDopqr.tuvw.KY

-./012365'78JI,<.>'~IJKLKaOPQRSTQVWZYZ[\lA_·aba~fgbl~klaDOpqr.tuvw.KY

/012365678JI,<.>'.~PGBIJKLMROPQ~UVWZYZ[\]A_·abc~fgbijklmDopqr.tu~(

•

1012365678JI,<.>'.~GBIJ.KLKROPQR8TQVWZYZ[\]A_·abc4.fgbijklmDOpqr.tUVWXY·(1

012365'78JI'<.>'~BI~~[\lA_·abc~fgbijk1mDOPqr.tuvwxy·(I)

12365678JI'<.>'~IJKLMROPQRSTUVWZYZ[\]A_·abc~fgbijklaDOpqr.tu~(I)-

2365678JI'<.>'a&BC~IJKLMBOPQRSTUVWZYZ[\]A_·aba~fgbijklmDopqr.tu~(I)-·

365678JI,<.>'a&BCDKPGBIJKLMROPQRSTUVWZYZ[\]A_·aba~fgbijklmDopqr.tu~(I)-·~

'5678JI,<.>'.~PGBIJ.KLKROPQR8TQVWZYZ[\lA_·abc4.fgbi~klmDOpqr.tuvw.KY·(I)-·~

Character Display (mode 3, 12)

to

the

80x25 and 80x30 character modes as shown below.

CIIADC'.rD

~'()·+,-./012365678JI'<.>'~IJ.lLMBDPQRSTUVWZYZ[\lA_·~fgbljklmDO

DISPLAY

•

Subtest 05

PRlI88

Pressing DISPLAY TEST menu, press

[DHR]

Enter

DIY

toggles between tests.

Ctrl + Break.

To

320x200 Character Display (mode 4,D)

two

This subtest displays graphics mode 4 and D.

320*200

COLOR

GRAPHICS DISPLAY

SET X : [X]

GREEN

CYAN

color sets for the color display in 320x200 dot

One example is shown below:

RED

MAGENTA

exit this subtest and return

BROWN WHITE

to

the

PRESS [ENTER]

Pressing Enter toggles between tests. DISPLAY TEST menu, press Ctrl + Break.

KEY

To

exit this subtest and return

to

the

3-17

Subtest 06 640x200 Character Display (mode 6, E)

This subtest displays even dots, odd dots, and graphics mode 6 and E as shown below:

all

dots in the 640x200 dot

640*200

PRESS

To exit this subtest and return

GRAPHICS DISPLAY : [X]

EVEN

[Enter]

DOTS

DRIVEN

KEY

ODD

to

the DISPLAY TEST menu, press Ctrl +

DOTS

DRIVEN

Break.

Subtest 07 640x350/400/480 Character Display (mode 10, 74, 12)

ALL

DOTS

DRIVEN

This subtest displays even dots, odd dots, and

all

dots in the 640x350,

and 64Ox480 dot graphics mode 10, 74, 12 as shown below:

640*XXX GRAPHICS DISPLAY

ALL

To exit this subtest

PRESS

EVEN

[Enter]

DOTS

DRIVEN

KEY

Pressing Enter changes the size

to

and return

the DISPLAY TEST menu, press Ctrl + Break.

ODD

DRIVEN

of

the displayed

DOTS

image.

64Ox400

DOTS

DRIVEN

3-18

Subtest 08

Subtest 09

Display Page

This subtest confirms that the pages can be changed in order from Page

0

through Page 7 in 40*25 character mode.

DISPLAY

PAGE

0

0000000000000000000000000000000000000000

o 0

o 0 o 0 o 0 o 0

o 0

o 0 o 0

o 0

0000000000000000000000000000000000000000

After completion

of

this test, pressing

Ctrl + Break

exits this subtest and

returns

to

the DISPLAY TEST menu.

H Pattern Display/Border Color

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 HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH

Pressing

Enter

displays the following message:

Setting

the

color

CRT

(1:yes/2:no)

If

an external CRT display is connected

to

the T

19001T

1900C, choose 1

to

display the following message:

[Border

color

test

(7

times

press

[Enter]

key]

Press

Enter

to

execute the border color test.

To

exit this subtest and return

to

the DISPLAY TEST menu, press

Ctri + Break.

3-19

Subtest 10

Subtest

11

3-20

LEOIDAC Pallet

This subtest checks the Caps

Lock. Num Lock. and Overlay LEOs by key

operation.

[

Caps/Num/Overlay

LED

test

]

(1)

Press

[Caps

Lock

(2)

Press

[Fn

+ NumLock

(3)

Press

[Fn

PRESS

[Enter]

KEY

]

key

]

key

]

key

Press Enter

to

display

the

following messages:

!

...

Caps

!

...

Num

!

...

Overlay

DAC

pallet

W-R-CMP

test]

= (about 5 seconds)

Processor

latch

test

Processor

latch

test

(1:256

times,

2:endless)

?

(on/off) (on/off) (on/off

J

After pressing Enter, the subtest writes the

'2A'

and

'15'

data

to

6 bits

of

256x3 (ROB), then reads new data and compares the results with the original data.

To

exit, press Ctrl +

Break,

then press Enter.

64 color display

This subtest displays seven screens. The first shows many colors at once, the next three display

64

shades

of

red, green, and blue successively, and the last

three display

64

shades

of

red, green and blue.

J;lress

Enter

to

change the display. Press Ctri +

Break

to

exit.

3.8 Floppy

Disk

Test

CAUTION: Before running the floppy disk test, prepare a formatted work disk since the

contents

the floppy disk in the

FDD

will be erased Remove the Diagnostics Disk

of

insert the work disk into the FDD.

and

To execute the Floppy Disk Test, select 5 from the DIAGNOSTIC TEST

menu, and follow the directions displayed on the screen. The Floppy Disk test contains that test the

The following messages appear after selecting the Floppy Disk Test from the TEST

T1900tr1900C's internal floppy disk drive.

menu.

1.

2.

Answer each question with an appropriate response

Select the test drive number

Test

Select the media type

drive

number

of

select

the floppy disk in the test drive to be tested and press

the floppy disk drive

(1:FDD#1,2:FDD#2,O:FDD1&2)

DIAGNOSTIC

to

execute the test.

to

be tested and press Enter.

Enter.

Media

3.

Select the track you want the test to start on and press Enter.

in

drive

#X

mode

(O:2DD,1:2D,2:2D-2HD/2DD,3:2HD)

Simply

Enter sets the start track to zero.

Test

start

track

(Enter:O/dd:OO-79)?

press Enter

five

subtests

?

pressing

?

4.

The floppy disk test menu Select the number ing

message

FLOPPY

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

DISK

DATA:

of

will

appear during the floppy disk test.

XX READ DATA : XX

will

appear after you select the start track number.

the subtest you want to execute and press Enter. The follow-

xxxxxxx

ERROR

T1900

COUNT: XXXXX

DIAGNOSTIC

[Ctrl] + [Break] [Ctrl]+[C]

TEST

;

key

The first three digits in the ADDRESS number indicate which cylinder tested. The fourth digit indicates the head, and the last two digits indicate the

sector being tested.

in

The first digit

the STATUS number indicates the drive being tested, and the last

two digits indicate the error status code as explained in Table 3-3

VX.XX

;

test

stop

is

being

in

Section 3-14.

end

3-21

Subtest

01

Sequential Read

This subtest performs a Cyclic Redundancy Check (CRC) that continuously reads

all

the tracks

on

a floppy disk. The following tracks are read according

to

the media type in the floppy disk drive:

o Double-sided, double-density (20): Tracks 0

to

39.

o Double-sided, double-density, double-track

(200)

and double-sided,

high-density, double-track (2HD): Tracks

0

to

79.

The start track is specified when the FDD test is started from the Diagnostic Test Menu. Refer

to

Step 3 at the beginning

of

this section

to

set the start

track.

Subtest 02 Sequential ReadlWrite

This subtest continuously writes data pattern BSADADh

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. The data is then read and compared

to

the original data.

Subtest

04 Write Specified Address

This subtest writes specified data

to

a specified track, head, and address.

Subtest

OS

Read Specified Address

This subtest reads data from a specified track, head, and address.

3-22

3.9 Printer Test

To

execute the Printer Test, select 6 from the DIAGNOSTIC TEST menu, press Enter and

follow the directions displayed

on

the

screen. The Printer Test contains three subtests that test

the

output

of

the printer connected

to

the T1900ff1900C.

NOTE:

An

IBM~ompatible

printer must be connected to the system to execute this

test. Make sure setup option ''External FDDIPRT'

is

set to Printer.

The following message appears when

the

printer test is selected:

Channel#l

XXXXh

Channel

#2

XXXXh

Channel#3

=

XXXXh

Select

the

channel

number

(1-3)

?

The printer

110

port address is specified by the XXXXh number. The T1900ff1900C sup-

ports 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:;<=>?8ABCDBPGHIJKLHNOPQRSTDVNXYZ[\]~_·abcdafgh1jklmno

!"t$'&'()*+,-./0123456789:;<=>?iABCDBPGHIJKLMNOPQRSTDVNXYZ[\]~_·abcdefghijklmnop

··t$'&'()*+,-./0123456789:;<=>?iABCDBPGHIJKLMNOPQRSTOVWXYZ[\]~_·abcdafghijklmnopq

t$'&'()*+,-./0123456789::<=>?8ABCDBPGHIJKLMNOPQRSTUVWXYZ[\]~_'abcdefgh1jklmnopqr

$'&'

()*+,-./0123456789::<=>?iABCDBPGHIJlLMNOPQRSTUVMXYZ[\]~_·abcdafghijklmnopqrs

'&'()*+,-./0123456789:;<=>?iABCDBPGHIJKLHNOPQRSTUVWXYZ[\]~_·abcdafghijklmnopqrst

&'

()*+,-./0123456789::<=>?8ABCDBPGHIJILMNOPQRSTDVNXYZ[\]~_·abcdafgh1jklmnopqrstu

·()*+,-./0123456789::<=>?8ABCDEPGHLJXLMNOPQRSTDVNXYZ[\]~_·abcdafghijklmnopqrstuv

()*+,-./0123456789:;<=>?8ABCDBPGHIJILMNOPQRSTUVWXYZ[\]~_·abcdafghijklmnopqrstuvw

)*+,-./0123456789:;<=>?iABCDBPGHIJKLMNOPQRSTOVWXYZ[\]~_·abcdafghijklmnopqrstuvw.x

*+,-./0123456789:;<=>?8ABCDBPGHIJKLMNOPQRSTUVWXYZ[\]~_·abcdafgh1jklmnopqrstuvw.xy

3-23

Subtest 02

Function

Subtest 03

This subtest is for

ffiM-compatible printers, and tests the following functions:

Normal print Double-width print

Compressed print Emphasized print Double-strike print

All characters print

The subtest prints the various print types shown below:

PRINTER TEST

1.

2.

3.

,.

5.

6.

opqrstuvw,xyz(I>-

1"'$'&'

THIS

LINE

THIS

'lHIS

Ln8

HI8

LID

HI8

LID

ALL

CHARACTERS

()*+

••

SHOWS

NORMAL

LINE

EIDI3

....... • PRINl'.

8JIOIr8

mlPlI&8IZG

8IIOIf8

DOUBLII-8'1'RID

/0123456789:;<=>?iABCDEPGHIJKLKNOPQRSTUVWXYZ[\]A_'abcdefghijklmn

PlUNT

PlUNT.

SHOWS

DOUBLE-WIDTH

PRIft.

Wraparound

PRINT.

NOTE:

connected to the computer's printer

To

execute this subtest, a printer wraparound connector must

port.

The printer wraparound con-

nector (34M741986G01) wiring diagram is described in Appendix

This subtest checks the output and bidirectional modes status lines through the printer wraparound connector.

of

the

data control and

be

G.

3-24

3.10 Async Test

To execute the Async Test, select 7 from the DIAGNOSTIC TEST

menu,

press

Enter

and

follow the directions displayed on the screen. The

Async

Test contains

six

subtests that test

the

T1900rr1900C's asynchronous communication functions. Move the highlight bar to the

subtest you want to execute and press Enter.

Subtests

0 I through 04 require the following data format:

Method:

Speed: Data: Data pattern:

Asynchronous 9600BPS 8 bits and one parity bit (EVEN)

20hto

7Eh

The following message appears at the bottom

of

the screen when Subtests

01,03,04,

and

05

are selected:

Channel#l

=

XXXXh

Channel#2

=

XXXXh

Channel#3

=

XXXXh

Select

the

Channel

number

(1 -3)

The serial

110

port address is specified by the XXXXh number. Select the serial port channel

number, and press

Enter

to start the subtest.

Subtest

01

Wraparound (board)

NOTE:

To

execute this subtest, an RS-232-C wraparound connector

(34M741621G01) must

be

connected to the RS-232-C port.

The

RS-232-C

wraparound connector wiring diagram is described in Appendix

G.

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

connector.

Subtest

02 Board (#1)

<=>

board (#2)

NOTE:

To

execute this subtest, an RS-232-C cable (9-pin

to

9-pin) must

be

connected

to

Boards 1

and

2.

The

RS-232-C direct cable wiring diagram is

described in Appendix

G.

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

3-25

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

described in Appendix

G.

This

subtest

sends

20h through

7Eh

data to the receive

side,

then

receives

the

sent

data

and

compares it to the

original

data.

Subtest

04

Point to point

(Receive)

Subtest

05

Subtest

06

3-26

This

subtest, used with Subtest

03

described

above,

receives

the data

from

the

send

side,

then

sends

the

received

data.

Card

Modem

Loopback (2400BPS)

NOTES:

(1) To execute this subtest, a 2400 bps

card

modem must be

installed

(2)

It

is

not

necessary to

tum

on power to the modem

at

the

Setup option. When you select this subtest, the modem

is

powered

on

automatically.

(3)

To execute this subtest, set the

PCMCIA

Slot

to

Others

in the Setup program.

This

subtest

sends

data

from

the RS-232-C port to the built-in

modem.

The

same

data

is

then

sent

from

the

modem

to the RS-232-C port

and

compared to

the

original

data.

When

you

select the

channel

number

of

the

serial

port

and

press Enter, the

following

message

appears:

Baud

rate

select

(2:

300BPS,

4:

1200BPS,

5:

2400BPS) ?

Mode

select

(1:

BELL,

2:

CCITT) ?

Select

the

baud

rate

and

mode

for

the

card

modem

and

press Enter to execute

this

subtest.

Interrupt Test

This

subtest checks the Interrupt Request

Level

ofIRQs

4,3

and 5 from

the

send

side.

3.11

Hard Disk Test

To

execute the Hard Disk Test, select 8 from the DIAGNOSTIC TEST menu, press

Enter and follow the directions displayed on the screen. The Hard Disk Test contains 10 subtests that test the T

1900rr

1900C hard disk drive functions.

CAUTION: The contents

of

the

hard

disk will be erased when Subtest 02, 03, 04,

05, 06,

08, 09,

or

lOis

executed Before running the test, transfer the contents

of

the

hard

disk

to a floppy disk(s). This can be done with the Toshiba

MS-DOS

BACKUP command.

After

the

hard

disk test

is

completed, execute the Toshiba

MS-DOS

FDISK

command,

which will

set

the partition. Then execute the Toshiba

MS-DOS

FORMA T command.

Refer to the Toshiba

MS-DOS

manual

for

details.

The following messages will appear after selecting the hard disk test from the DIAGNOSTIC TEST MENU. Answer each

of

the following questions with an appropriate response

to

execute the test:

I. 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,O: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. Select

1

or

1 and press

Enter.

The following message

will

ap-

pear:

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.

Select 1

or

1 and press

Enter.

The following message

will

appear:

Detail

status

display

(1:no,2:yes)

?

5.

This message is used

to

select whether

or

not the IIDD status is displayed on the

screen. The HDD status is described

in Section 3.15. Select 1

or

1 and press

Enter.

3-27

6.

The Hard Disk Test message appears after you respond

to

the Detail Status

prompt. Select the number

of

the subtest you want

to

execute and press

Enter.

The following message displays during each subtest.

Subtest

01

Subtest 02

Subtest

03

3-28

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 indicate which cylinder is being tested, the

fourth digit indicates the head, and the last

two

digits indicate the sector.

The first digit

of

the STATUS number indicates the drive being tested, and the last

two

digits indicate the error status code as explained in Table 3-3 in Section 3-14.

Sequential Read

This subtest is a sequential reading

of

all the tracks

on

the

lIDO

starting

at

Track

O.

When all the tracks

on

the

lIDO

have been read, the test starts at the

maximum track and reads the tracks

on

the

lIDO

sequentially back

to

Track

O.

Address Uniqueness

This subtest writes unique address data

to

each sector

of

the

lIDD

track-by-

track. The data written

to

each sector is then read and compared with the

original data. There are three ways the

lIDD

can be read:

· Forward sequential

· Reverse sequential

· Random

Random AddresslData

This subtest writes random data

to

random addresses

on

the

HOD

cylinder,

head and sector. This data is then read and compared

to

the original data.

Subtest 04 Cross Talk & Peak Shift

This subtest writes eight types

of

worst pattern data (shown below)

to

a

cylinder, then reads the data while moving from cylinder

to

cylinder.

Worst

Pattern

Data

Cylinder

'B5ADAD'

o cylinder

'4A5252'

1 cylinder

'EB60B6' 2 cylinder

'149249'

3 cylinder

'63B63B'

4 cylinder

'9C49C4'

5 cylinder

'20B60B'

6 cylinder

'024924' 7 cylinder

Subtest 05 Write fread/compare

(eE)

This subtest writes B5ADADh worst pattern data

to

the CE cylinder on the lIDO, then reads the data from the CE cylinder and compares it with the original data.

Subtest 06 Write specified address

This subtest writes specified data to a specified cylinder and head on the lIDO.

Subtest 07 Read specified address

This subtest reads data which

has

been written

to

a specified cylinder and head

on the lIDO.

Subtest

08 ECC circuit

This subtest checks the Error Check and Correction (BCC) circuit functions

of

the specified cylinder and head

on

the lIDO.

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

This subtest writes data

to

a specified cylinder and head on the HDD, then

reads the data and compares it

to

the original data.

3-29

3.12 Real Timer Test

To

execute the Real Timer Test, select 9 from the DIAGNOSTIC TEST MENU, press Enter

and follow the directions

1900rr

the T

execute and press

1900C' s real timer functions. Move the highlight bar

Enter.

on

the screen. The Real Timer Test contains three subtests that test

to

the subtest you want

to

Subtest

01

Real Time

To

A new date and time can be input during this subtest. subtest follow these steps:

1.

Select Subtest 01; the following message appears:

Current Current

Enter

PRESS [ENTER]

2.

If

the

CUlTent

date"

prompt and press

Enter

3.

If

the current time is not correct, input the correct time in 24-hour fonnat.

Pressing Enter toggles between the time and the date.

Break.

date

:

xx-xx-xxxx

time : XX:XX:XX

new

date:

KEY

TO

EXIT

date is not correct, input the correct date at the

Enter.

new

time

:

TEST

The following prompt will appear:

execute the real time

To

exit, press Ctrl +

"Enter

new

Subtest 02 Backup Memory

This subtest performs the following backup memory check:

o Writes I bit o Writes I bit o Writes the data pattern AAh through 55h

(address

The subtest then reads and compares this data with the original data.

To exit, press

3-30

OEh

Ctrl + Break.

of

"on"

of

"0fI" data

to

3Fh)

data

to

addresses Olh through 80h

to

addresses FEh through 7Fh

to

the RTC 50-byte memory

Subtest

03

Real

Time

Carry

CAUTION: When this subtest is executed, the

cu"ent

date

and

time are

erased

This

subtest checks the real time clock increments,

making

sure the date

and

time are displayed

in

the

following

format:

Current

date

Current

time

12-31-1992 23:59:58

After two seconds, the

following

displays:

Current

date:

01-01-1993

Current

time:

00:00:00

PRESS

[Enter]

KEY

TO

EXIT TEST

Press Ctrl + Break to

exit.

3-31

3.13 PCMCIA Test

NOTE: To execute this subtest, the PCMCIA wraparound

card

is

required

Subtest

01

110

Card Test (pCMCIA)

This test checks the following signal lines

of

the PCMCIA slot:

Cl

Address line

Cl

REG#,

CE#I,

CE#2 line

Cl

Data line

Cl

Speaker line

Cl

Wait line

Cl

BSY#,

BVDliine

This subtest is executed

in

the following order:

Sub#

Add

.....

Good

Bad

Contents

01

00001

nn

xx Address line

00001

nn

xx

REG#,

CE#1,

CE#2

nn=AO,

90,

80,

00

02

00002

ww

rr Data line

ww=write data, rr=read data

03

00003

--

Speaker line

04 00004

40,80

xx Wait line

(4O<xx<80)

05

00005

nn

xx

Other

lines (BSY#,

BVD1)

nn=21,00

3-32

3.14 Error Codes and Error Status Names

Table 3-3 lists the error codes and error status names for the Diagnostic Tests.

Table

3-3 Error Codes

and

Error Status Names

(1/2)

Device Name

Error

Coda

Error

Status Name

(COMMON)

FF

Data

Compare

Error

SYSTEM

01

ROM

Checksum

Error

MEMORY

01

Parity

Error

02

Protected

Mode

Not

Changed

14

Memory

ReadIWrite

Error

1B

H-RAM

Mapping

Error

1C

H-RAM

ReadlWrite Error

DO

Cache

Memory

Error

KEYBOARD

03

Mouse

Interface Error

04

DCBP

Interface 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

Error

80

Time-out

Error

EE

Write

Buffer Error

PRINTER

01

Time-out

08

Fault

10

Select

Line

20

Out

Of

Paper

40

Power

Off

80

Busy

Line

3-33

Table 3-3

E"or

Codes

and

E"or

Status Names

(212)

Device Name

Error

Code

Error

Status Name

ASYNC

01

DSR

On

Time-out

02

CTS

On

Time-out

04

RX-READY

Time-out

08

TX-BUFFER

Full

Time-out

10

Parity Error

20

Framing

Error

40

Overrun Error

80

Line Status Error

88

Modem

Status Error

33

No

Carrier (Card

Modem)

34

Error

(Card

Modem)

36

No

Dial

Tone (Card

Modem)

HOD

01

Bad

Command

Error

02

Bad

Address Mark Error

04

Record

Not

Found

05

HOC

Not

Reset

Error

07

Drive

Not

Initialized

08

HOC

Overrun (ORa)

09

DMA

Boundary Error

OA

Bad Sector

OB

Bad

Track Error

10

ECC

Error

11

ECC

Recover Enable

20

HOC

Error

40

Seek Error

80 Time-out Error

AA

Drive Not

Ready

BB

Undefined Error

CC

Write

Fault

EO

Status Error

EE

Access Time-out Error

PCMCIA

C1

Address Line Error

C2

REG.

Line

Error

C3

CE.1

Line

Error

C4

CEI2

Line

Error

C5

DATA

Line

Error

C6

WAIT

Line

Error

C7

BSY.

Line

Error

C8

BVD1

Line

Error

CD

NoPCMCIA

3-34

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 hard disk controller (HOC) error status number and the last four digits are not used.

The hard disk controller error status is composed

of

two

bytes; the first byte displays the

contents

of

the HOC status register in hexadecimal form, and the second byte displays the

HOC error register.

The contents

of

the HOC status register and error register are described in Tables 3-4 and 3-5.

Table

3-4

Hard Disk Controller Status Register Contents

Bit

Name

Description

7

BSY

"0"

---HOC is

busy.

(Busy)

"1" ---

HOC

is

ready.

6

DRDY

"0" ---Hard disk drive is not ready to accept any command.

(Drive

ready)

"1" ---Hard disk drive is

ready.

5

DWF

"0" --DWF error

is

not detected.

(Drive write

fault)

"1"

---Write fault condition occurred.

4

DSC

"0" ---The

hard

disk drive heads are not settled over a track.

(Drive seek

"1" ---The

hard

disk drive heads are settled over a track.

complete)

3 ORa "0" --- Drive is not

ready

for data transfer.

(Data

request) "1" --Drive is

ready

for data transfer.

2

CORR

"0"

---

Other

(Corrected data)

"1" ---Correctable data error is corrected.

1

lOX

"0" ---Other

(Index) "1" ---Index is sensed.

0

ERR

"0" ---Other

(Error)

"1" ---The previous command was terminated with

an

error.

3-35

Table 3-5 Error Register Contents

Bit

Nama

Description

7

BBK1

"0"

---

Other

(Bad

block

"1"

---A bad

block mark is detected.

mark)

6

UNC

"0" ---There is

no

uncorrectable data error.

(Uncorrectable)

"1" ---Uncorrectable data error

has

been

detected.

5

----

Not

used

4

10NF

"0"

--Other

(Identification) "1" ---There was

no

10

field

in

the

requested

sector.

3

----

Not

used

2

ABRT

"0" ---Other

(Abort) "1" ---Illegal

command

error or a drive status error occurred.

1

TKOO

"0"

--

The

hard

disk found Track 0 during a recalibrate

command.

(Track 0)

"1"

---

The

hard

disk could

not

find Track 0 during a recalibrate

command.

0

----

Not

used.

3-36

3.16 Hard Disk Format

The hard disk fonnat function performs a low-level (Physical) fonnat

of

the hard disk and

executes the following track fonnats and check:

1.

All track FORMAT

2. Good track FORMAT

3.

Bad track FORMAT

4. Bad track CHECK

C4UTION: The contents

of

the

hard

disk will be erased when this program is ex-

ecuted 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 fonnat

of

all the tracks

on

the hard disk as

shown

in

Table 3-6 below:

NOTE:

Before executing the

All

Track

FORMAT

option.

checkfor

bad

tracks using the

Bad

Track CHECK option or display a list

of

bad

tracks

ontheHDD.

Table

3-6 Hard Disk

Formatting

Sequence

BOMB

120MB 200MB

Itam

(MK1422FCV)

(CP2124)

(MK2124FC) (MK2224FC)

Sector Sequences

1

Cylinders

0-987

0-761 0-933 0-683

Heads

0-9

0-7

0-15 0-15

Sectors 1-17 1-39 1-17 1-38 Sector

Length

(bps)

512

3-37

2. Good track FORMAT

This option formats a specified cylinder and track as a good track.

If

a good

track is formatted as a bad

track, use this option

to

change the track

to

a good

track.

3. Bad track

FORMAT

This option formats a specified cylinder and track as a bad track.

If

a bad

track is detected, use this option

to

label it as a bad track.

4.

Bad track CHECK

This option 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

complete.

If

an error other than a bad track is detected, the program is

automatically terminated.

3.16.2 Operations

CAUTION:

The

contents

of

the hard disk will

be

erased when this program is ex-

ecuted Before executing

the

junction, 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.

Select TEST 2 (Hard Disk Format) from the DIAGNOSTIC MENU and press Enter. The

following messages display:

DIAGNOSTICS -

HARD

DISK

FORMAT

VX.XX

1 -

All

track

FORMAT

2 -

Good

track

FORMAT

3 -

Bad

track

FORMAT

4 -

Bad

track

CHECK

9 -

Go

to

TEST

MENU

iJ.~~

:

Select

items,

Enter:

Finish,

Esc:

Exit

1.

All track FORMAT

Pressing

1 selects "All track FORMAT," which formats the entire disk.

[All

track

FORMAT]

Drive

Cylinder

Head Sector

#1 = HDD

XXXX

xx

XX

«<

Model

name

»>

#2

Non

The following questions also appear at the bottom

of

the

screen in succession:

Drive

number

select

(1:#1,2:#2)

?

(1) Select a drive number and press

Enter.

The following message appears:

Interleave

number

(1/1

-

8)

?

(2) Select an interleave number

(1

- 8) and press

Enter.

Pressing only

Enter selects

1.

Unlock

format

select

(1:no/2:yes)

(3) Select whether the disk has an unlock format.

NOTE: This option appears only when an HDD manufactured

by

JVe

is

installed. For

JVe

HDDs, which are the only disks with unlock formats, you

must select 2 (yes).

If

1 is selected with a

JVe

disk, an error will be gener-

ated. The

system defaults to 1

and

this message does

not

appear when other

disks are installed.

(4)

Bad

track register

Next, the

Bad

Track register prompt will appear as shown below. Enter

the cylinder and head numbers

of

bad tracks and press

Enter.

Note

that

if

there are

no

bad tracks, pressing Enter alone is

the

same as executing

All Track Format described

in

Item (5) below.

[ WARNING:

Current

DISK

data

will

be

completely

destroyed

]

Press

Bad

cylinder

number

(dddd)]

key?

Press

Bad

head

number

(dd)]

key?

Enter the cylinder and head number in

the

format above in decimal

notation. Repeat for each bad track you want

to

format.

After entering the bad tracks, press

Enter

to

execute the format.

3-39

3-40

(5) All track format

All tracks are formatted as

good

tracks except those registered as bad

tracks in Item (4) above

or

those identified as bad tracks in track verifi-

cation described in Item (6) below.

(6) Track verification

A check is made

of

all tracks and

if

an

Eee

error, Eee-correctable-data

error

or

record-not-found error is detected at a track, that track is

formatted as a bad track automatically.

2. Good track FORMAT

If a good

track has been erroneously formatted as a bad track, you can use

this sub test

to

reformat the track as a

good

track.

To

format a track as a

good track, enter the number for

the

drive, interleave, cylinder and head as

indicated in the screen prompt shown below.

Drive

number

select

(1:#1,

2:#2)

?

Interleave

number

(1

/ 1 -

8)

?

Press

[Cylinder

number

(dddd)]

?

Press

[Head

number

(dd)]

?

Press Enter

to

return

to

the

Hard Disk Format menu.

3. Bad track FORMAT

To

format a track as a bad track, enter the number for the drive, interleave,

cylinder and head as indicated in the screen prompt shown below.

Drive

number

select

(1:#1,

2:#2)

?

Interleave

number

(1

/ 1 -

8)

?

Press

[Cylinder

number

(dddd)]

?

Press

[Head

number

(dd)]

?

Press Enter

to

return

to

the Hard Disk Format menu.

4.

Bad track CHECK

This subtest reads the entire disk and displays a list

of

bad tracks. The test is

terminated in case

of

a bad track check error. To initiate the subtest, enter the

drive number at the prompt shown below.

Drive

number

select

(1:#1,

2:#2)

?

Bad tracks will be displayed in the format shown below.

[[cylinder,

head

= 0123

03]]

Press Enter

to

return

to

the Hard Disk Format menu.

NOTE:

After the HDD has been formatted, execute the Toshiba

MS-DOS

FDISK

command to partition the HDD. Next, execute the Toshiba

MS-DOS

FORMAT

com-

mand. Refer to the Toshiba MS-DOS manual

for

more information about using these

commands.

3-41

3.17 Head Cleaning

3.17.1

Function 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

to

perform this function.

3.17.2 Operations

3-42

1.

Select 4 (Head Cleaning) from the DIAGNOSTIC

MENU

and press

Enter

to

display the following messages:

DIAGNOSTICS -

FLOPPY

DISK

HEAD

CLEANING

VX.XX

Mount

cleaning

disk(s)

on

drive(s).

Press

any

key

when

ready.

2. Remove the Diagnostics Disk from the FDD, insert the cleaning disk, and press

Enter.

3. When

the

"cleaning start" message appears, the FDD head cleaning has begun.

4. The display automatically returns

to

the DIAGNOSTIC

MENU

when the

program is completed.

3.18 Log Utilities

3.18.1

Function Description

This function logs error information generated while a test is in progress and stores the results in RAM. The

Log

Utilities can store data

on

a floppy disk

or

output the data

to

a printer.

If

the power switch is turned off, the error information will

be

lost.

Error

information is dis-

played 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.

FDDIHDD

or

memory address (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 5 (Log Utilities) from the DIAGNOSTIC

MENU

and press

Enter.

Error

information is logged into

RAM

or

onto a floppy disk. This information

is displayed in the following format:

XXXXX

ERRORS

CNT

TS-NAME

PASS STS

ADDR

WD

RD

HSTS [STATUS

NAME]

001

FDD

02

0000

001

FDD

01

0000

103 180

I

00001 00001

I

Address

Error

status

00

00 00

FDD

- WRITE

PROTECTED

FDD

- TIME

OUT

ERROR

Pass

count

HDC

status

Subtest

number

Read

data

Test

name

Error

count

Write

data

Error

status

name

[[1:Next,2:Prev,3:Exit,4:Clear,5:Print,6:FD

Log

Read,7:FD

Log

Write]]

3-43

2. Error infonnation displayed

on

the screen can be manipulated using the

following number keys:

The 1 key scrolls the display

to

the next page.

The

2 key scrolls the display

to

the previous page.

The 3 key returns

to

the Diagnostic Menu.

The 4 key erases

all

error log infonnation in RAM.

The 5 key outputs the error log infonnation

to

a printer. The 6 key reads the log infonnation from a floppy disk. The 7 key writes the log infonnation

to

a floppy disk.

3. In the case

of

"error

retry

OK,"

a capital

"R"

is placed at the beginning

of

the error status. However, it is not added

to

the error count.

3.19 RunningTest

3.19.1

Function Description

This function automatically executes the following tests in sequence:

1.

System Test (Subtest 01)

2.

Memory Test (Subtests

01,02,04,06,

and 07)

3.

Display Test (Subtests

01

to

08)

4.

FDD Test (Subtest 02)

5.

lIDD

Test (Subtests

01

and 05)

6.

Real timer Test (Subtest 02)

7.

Printer Test (Subtest 03)

8.

Async Test (Subtest 01)

The system automatically detects the number

of

floppy disk drives connected

to

the T

19001

TI900C

for the FDD test.

3.19.2 Operations

CAUTION: Do not forget

to

load a work disk in

the

FDD.

If

a work disk is not

loaded,

an

error will

be

generated during

the

FDD

testing.

I. Remove the diagnostics disk from the floppy disk drive and insert the work

disk.

2.

Select 6 (Running Test) from the Diagnostic Menu and press Enter. The following message

will

be

displayed:

Printer

wraparound

test

(YIN) ?

Selecting Y (yes) executes the printer wraparound test.

Note

that a printer

wraparound connector must be connected

to

the PRTIFDD port

on

the back

of

the T

1900rr

1900C

to

properly execute this test.

3.

Select Y

or

N and press Enter. The following message will appear:

Serial

#A

wrap

around

test

(YIN) ?

Selecting Y (yes) executes the ASYNC wraparound test.

An

RS-232-C

wraparound connector must

be

connected

to

the serial port

on

the back

of

the T

1900rr

1900C

to

properly execute this test.

3-45

3-46

4.

Select Yes

or

No and press Enter. The following message appears:

Mount

the

work

disk(s)

on

the

drive(s),

then

press

[Enter]

key.

[Warning]

:

The

contents

of

the

disk(s),

will

be

destroyed.]

5.

This program is executed continuously. To terminate the program, press

Ctrl

+ Break.

3.20 Floppy

Disk

Drive Utilities

3.20.1

Function

Description

This function formats

the

FDD, copies

the

floppy disk, and displays

the

dump list for both the

FDDandHDD.

1.

FORMAT

NOTE: This program is only

for

testing

afloppy

disk drive. The option is

differentfrom the Toshiba

MS-DOS FORMAT command

This program

can

format a 5.25-inch

or

3.5-inch floppy disk in

the

following

formats:

(1)

20:

Double-sided, double-density, 48/67.5 TPI,

MFM

mode, 512 bytes,

9 sectors/track.

(2)

200:

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 program copies

data

from a source floppy disk

to

a target floppy disk.

3.

DUMP

This program displays

the

contents

of

the

floppy disk (both 3.5-inch and 5.25-

inch) and

the

designated sectors

of

the

hard disk

on

the

display.

3.20.2 Operations

1.

Select 7 (FDD Utilities) from

the

DIAGNOSTIC

MENU

and press

Enter.

The

following message displays:

FDD

UTILITIES

1 -

FORMAT

2 - COpy 3 -

DUMP

9 - EXIT

TO

DIAGNOSTICS

MENU

3-47

2.

FORMAT program

(1) Selecting FORMAT displays the following message:

DIAGNOSTICS -FLOPPY

DISK

FORMAT : VX.XX

Drive

number

select

(l:A,

2:B)

?

(2) Select a drive number

to

display the following message:

TYPe

select

(O:2DD-2DD,1:2Dl-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 ex-

ecuted:

[FDD

TYPE]

[FDD

TYPE]

[FDD

TYPE]

Format

start

TRACK

=

XXX

HEAD X

SECTOR

XX

[[track,

head = XXX

X]]

After the floppy disk is formatted, the following message appears:

Format

complete

Another

format

(1:Yes/2:No)

?

(5) Typing 1 displays the message from Step (3) above; typing 2 returns the

display screen

to

the DIAGNOSTIC MENU.

3.

COPY program

(1) When

COpy

is selected, the following message appears:

FLOPPY

DISK

FORMAT & COpy : VX.XX

Type

select

(O:2DD-2DD,1:2D-2D,2:2D-2HD,3:2HD-2HD)?

(2) Selecting a media/drive type number will display a message similar

to

the

one below:

Insert

source

disk

into

drive

A:

Press

any

key

when

ready.

(3) Remove the Diagnostics Disk from the FOD, insert the source

disk,

and

press

any

key.

The following message appears, indicating the program

has started.

[

FDD

TYPE

[

FDD

TYPE

[

FDD

TYPE

Copy

start

TRACK

XXX

HEAD X

SECTOR =

xx

[[

track,

head

=

XXX X ]]

(4) Remove the source disk from the FOD, insert a formatted work disk,

and press

any

key.

The [[ track, head = XXX X ]] message

will

appear

and start copying

to

the target disk. When the amount

of

data

is

too

large to be copied in one operation, the message from

Step 2

is

displayed

again. After the floppy disk

has

been copied, the following message

will

appear:

Copy

complete

Another

copy

(1:Yes/2:No)

?

(5) To copy another disk, type 1 and the message from Step 1 will be dis-

played

again.

Entering 1 returns the test program to the DIAGNOSTIC

MENU.

4.

DUMP program

(1) When DUMP

is

selected, the following message appears:

DIAGNOSTICS-HARD DISK & FLOPPY DISK

DUMP

VX.XX

Drive

type

select

(l:FDD,

2:HDD) ?

(2) Select a format type number.

Ifl

is

selected, the display

will

go to Step

(5).

Select

FDD

number

(l:A,

2:B)

?

(3) Select a drive number and the following message will be displayed:

Format

type

select

(O:2DD,

1:2D,

2:2HD)

?

(4) Select a media type number and the following message will appear:

Insert

source

disk

into

drive

A:

Press

any

key

when

ready.

3-49

3-50

(5) Insert a source disk and press any key. The following message appears:

Max.

address

----

[Track

]

0079

[Head

] =

01

[Sector]

=

09

Track

number

??

(6) Set the track number you want

to

dump. The system will access the disk

and dump a

list.

3.21

System Configuration

3.21.1

Function Description

The System Configuration program contains the following configuration infonnation for the T19001T1900C:

BIOS ROM version

1.

Boot ROM version

2.

3. KBC version

4.

Base memory size

5.

The number

6. The number

7. The number

The number

8.

Extended Memory Size

9.

10.

PS Micom Version

of

floppy disk drives

of

ASYNC ports

of

hard disk drives

of

printer ports

3.21.2 Operations

Select 8 (System Configuration) from the DIAGNOSTIC MENU and press Enter. The

following system configuration displays:

Press

Enter

SYSTEM

* * - 639KB

* - 1

Press

to return to the DIAGNOSTIC MENU.

CONFIGURATION

* - BIOS

BOOT

* -

KBC

ROM

VERSION =

ROM

VERSION =

VERSION = VX.XX

MEMORY

* - 1 FLOPPY DISK

ASYNC

* - 1

HARD

* - 1 PRINTER * -

XXXXXKB

* - PS

MICOM

[Enter]

ADAPTER

DISK

DRlVE(S)

ADAPTER

EXTENDED

VERSION = VX.XX

Key

vx.xx vx.xx

DRlVE(S)

MEMORY

3-51

3.22 SETUP

3.22.1

Function Description

This program displays the current system setup information as listed below:

1.

Memory (1) Total (2) Base (3)

Extended Memory

(4)

Hard RAM

(5) Shadow BIOS ROM

2.

Display (1) Display Adapter (2) LCD Display Mode (3) LCD Gray

Scale Level

3. COMlPCMCIAlFDDIPRT (1)

Serial Port

(2)

PC Card Slot

(3) External FDDIPRT

(4)

Printer Port Type

4.

Hard Disk

5.

Power on Password

6.

Others (1) Power-up Mode (2)

CPU Cache

(3)

Processing

Speed

(4)

Battery Save Mode

(5) Popup (6) Speaker

(7) Battery Alarm

7.

Battery Save Options (1) CPU Sleep Mode (2) HOD Auto

Off

(3) Display Auto

Off

3-52

3.22.2 Accessing

the

SETUP Program

Select 0 (Setup) from the DIAGNOSTICS MENU

and

press Enter. The following screen

displays:

'1'1900

8II'l'OP

BIOS

v.r.ioD

•

x.zz

-IIDO

..

Y

Ic

DRD

DISlt

I

Total

=

4096

m

~Capacity

=

**MB

Base

=

640 m

Extended

=

3328

m

IIOIID.

011

PUBWOJU)

Hard

RAM

=

om

[Not

Registered

I

Shadow BIOS

ROM

=

128

m

-

0'l'DIUI

- DISPLAY

Display

Adaptor = VGA

Compatible

Power-up

Mode

=

Boot

LCD

Display

Mode = Color

CPU

Cache

=

Enabled

LCD Gray Scale Level =

Normal

64

Levels

Processing

Speed

=

High

Battey

Save

Moda

=

Automatic

- CC*/PCIICI.I./I'DD/PR.T

(Normal

Lite)

Serial

Port

=

COM1(IRQ4/3P8H)

Popup

=

Enabled

PC

Card

Slot

=

PCMCIA

Speaker

=

Enabled

External

PDD/PRT

=

Printer

Battery

Alann

=

Enabled

Printer

Port

TYPe

=

OUtput

tJ.+--+

I

Select

it_,

Space,

BkSp

I

CbaDge

value.

••

a.

bit:

wit:hout:

••

riD!l.

&om.

...

t:

d8f.ult:

'Va1u

•••

JIDd.

a.v.

allaDg

••

IUI4

bit:

NOTE:

The

LCD gray scale level does not appear on

the

T1900C

screen.

3.22.3

3.22.4

Moving Within

the

SETUP Menu and Changing Values

1.

Press +-

and

-+ to move between the two columns,

and

press t

and

J,

to

move between items

in a column.

2.

Press either the space

bar

or BkSp to change the

value.

Accepting Changes and Exiting

the

SETUP Window

1.

Press

End

to accept the changes you

made.

The following message

displays:

Are

you

sure?

(YIN)

(a) To

make

other changes, press N, then repeat the steps above.

(b) To accept the changes, press

Y.

The system will reboot automatically.

NOTE:

You

can press Esc

to

quit at any

time

without saving

changes.

SETUP will ask you

to

confirm that you do not want

to

save your

changes.

3-53

3.22.5 The Factory Preset Configuration

When

you access SETUP, the current configuration

is

displayed.

1.

To show the factory preset configuration, press Home.

2.

To accept the default settings, press

End

and

then press

Y.

3.22.6 SETUP Options

The SETUP screen

is

divided into functionally related groups. This section describes each

group

and

its options.

3-54

1.

Memory

This

group

of

options lets you configure the computer's

memory.

(1) Total

This

field

displays the total amount

of

memory

installed

and

is automati-

cally

calculated

by

the computer. This value cannot be changed.

(2) Base

This

field

displays the amount

of

base (conventional) memory-640

KB-

and

is

automatically calculated

by

the computer. This value cannot be

changed.

(3) Extended Memory

This

field

displays the amount

of

extended memory the computer

has

available.

This value

is

calculated automatically when modifications are

made

to the Hard

Ram

value.

(4) HardRAM

This

field

displays the amount

of

extended memory assigned to Hard

RAM.

You can set the

size

of

Hard RAM from

128

KB

to 19,712

KB

in

64

KB

increments. The default

is 0 KB.

(5) Shadow BIOS ROM

The SETUP program displays

128

KB

of

RAM, which

is

reserved for

the Shadow

BIOS

ROM.

This value cannot be changed.

2.

Display

This group

of

options helps you configure the computer's display.

(1) Display Adapter

This field displays the internal adapter for the

VGA internal display:

VGA compatible. This value cannot be changed.

(2) LCD Display Mode

Use this option

to

set the computer's display mode.

Color

Monochrome

Selects 80 x 25 text

or

640 x 480 graphics modes. This option also affects a color monitor attached to

the external display port. (Default)

Selects monochrome mode. This is also used when you attach a

VGA

monochrome monitor

to

the external display port.

Note

that some software

is displayed best in monochrome mode.

NOTE:

When

you connect a CRT

to

the computer, you cannot change

the display

mode.

The

LCD Display Mode is automatically set to con-

form to the CRT being used

(3) LCD Gray Scale Level (T1900 only)

This option, which appears in

SETUP and in the Pop-up Wmdow, lets

you switch between normal and reverse video

on

the T1900.

It

does not

appear

on

the T1900C. The options are:

Normal 64 levels Displays black text

on

a white background with 64

shades

of

gray.

Reverse 64 levels Displays-white text

on

a black background with 64

shades

of

gray.

3-55

3-56

3. COMlPCMCINFDDIPRT

This option controls settings for serial and parallel ports and the PC card slot.

(1) Serial

Port

This option allows you

to

set the COM level-COMI

or

COM2-for

the

serial port and

PC

Card slot. The serial port interrupt level (IRQ) and

I/O port base address for each COM level is shown below:

COM

Level Interrupt Level

110

Address

COM1

4 3F8h (Serial port default)

COM2

3 2F8h

(PCMCIA default)

Not used

- -

(Disables port)

If

the COM level for the serial port is set

to

the same level as the Toshiba

card modem, the card modem's

COM level is automatically reset

to

Not

Used

(2) PC Card Slot

This option enables you

to

select how the

PC

Card slot is used.

PCMCIA Others

Identifies an installed PCMCIA card. (Default)

Identifies an installed Toshiba card modem (model: PC-22-T24M, orPC-T24SL).

When you choose

Others,

the sub-window below appears allowing you

to

control the modem's COM Port and power.

COM

Port

=

COM2

(IRQ3/2F8H)

Power

=

On

o Use the COM Port option

to

select the interrupt (IRQ)/COM level

for the Toshiba card modem:

COM 1 or

COM2 (Default).

o Use the

Power

option

to

turn the power

to

the modem

on

or

off.

When the COM Port option is set

to

Others,

the

Power

option is dis-

played in the sub-window. The

Power

option indicates the setting in

CMOS.

(3) External FDDIPRT

Use this option

to

assign the function

of

the PRINTERlFDD port.

Printer

FDDA

FDDB

Option SettIng

Printer (default)

FDDA FDDB

(4) Printer

Port

Type

Configures the port for output

to

a printer

or

other

parallel device. (Default)

Configures

the

port for output and input

to

and

from the externalS

114"

diskette drive and assigns

the letter A

to

the external drive.

By

default the

internal drive becomes Drive B.

Configures the port for output and input

to

and

from the externalS

114"

diskette drive and assigns

the letter B

to

the external drive.

By

default the

internal drive remains Drive

A.

Extemal

FOO

10

Intemal

FOO

10

None

A A B B

A

This option sets the communication mode for the printerlFDD port

to

either output-only

or

bi-directional, and is effective only when the Exter-

nal

FDDIPRT option is set

to

Printer.

If

FDD A

or

B is selected for the

External FDDIPRT option, this setting is ignored and the mode is auto-

matically set

to

bi-directional.

For

most printers, the port should

be

set

to

Output. With some other

parallel devices, the setting should

be

Bi-directional.

Output

Bi-directional

4.

HarkDisk

Activates uni-directional operation. (Default)

Activates bi-directional operation.

This option enables

or

disables the hard disk drive.

80, 120,

or

200

MB

No

Drive

Provides access

to

the hard disk. The disk's

capacity is automatically displayed and cannot

be

changed.

Prevents access

to

the hard disk.

3-57

Toshiba T1900 Series User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual