Toshiba T1910 Montage- und Bedienungsanleitung

1.1

Features

The

T1910 andT1910CS units consist

the following features:

Processor Intel SL-Enhanced 486SXl33Mhz

BIOS

128KB

flash EPROM

(ISOns)

RAM

4MB Expandable to

20MB

(80ns)

Display T1910: Fluorescent Sidelit Monochrome

LCD

T1910CS: Dynamic-STN Dual Scan ColorLCD

Ext. Display VGA 640 x 480 (16 colors

4096)

Does notproducesimultaneous display.

FDD 3

1/2"

1.44MB

lIDD T1910:

120MB

T1910CS: 120MB/200MB (17/16msec)

Optional Peripherals

I-key Keyboard (pS/2)

Ports I

14.Smm

PCMCIA Type m

(2.01

compliant)

I 9-Pin Serial

I ParallellFDD:

BI-DIR.

I IS-PinRGB

I Mouse QuickPort (DCBM)

I PS/2

Mouse"

Port (not usable

DCBMconnected)

I-key Keyboard Port (pS/2)

Keyboard 82-Keys, 3mm Travel

Battery NIMH (12V 2600mAH) PART# PA2429URA

Battery Life

2-3

Hrs.

Recharge Time

1.5-2

Hrs. (Computer offonly)

ACAdapter Dimensions: 1.02"H x 2.9S"W x

5.5

Weight =

1.0

lbs.

Il2l.O: Input: 100-240VAC, Input Frequency:

SO-60Hz,

Input Power:

.SA

-.28A

(SO/60Hz)

Output Voltage:

VDC,

I.IA

T1910CS: Input:

lOO-240VAC,

Input Frequency:

SO-60Hz,

Input Power: .4A -.7A

(SO/60Hz)

Output Voltage:

VDC,

1.7A

Bundled Software Toshiba

DOS

6.2

w!EDhancements;

Wmdows

3.1; Ultrafont;

Microsoft Mouse 2.0.

Dimensions T1910: 11.8"Wx

8.4"D

x 2.0"H, 6.Slbs.

T1910CS: 11.8"W x 8.4"D x 2.l''H, 6.8Ibs.

T1910

SeriesMaintenance ManualAddendum

--------------

Add-1

The T

191

0 Series Computer

shown inFigure 1-1,

and

its system configuration

shown in

Figure

1-2.

Add-2

Figure 1-1

T1910

Series Personal

Computer

r---------------------------------------I

PJ8 PJ2 PJ5

PJ3

FA2SU· (T1910

PJ8 rr191OCS)

System

PJ9

Board

PJ7

PJ4

PJ10 PJ1

PJ501

Power

Supply

PJ502 PJ504

PJ503

---------------------------

FA2SL·

System

Board

PJ203

PJ208

PJ202

pJ205 PJ204 PJ201

Figure 1-2

T1910

Series

System

Unit

Configuration

Main

Battery

Backup

Battery

_______________

T1910

Series

Maintenance

Manual

Addendum

1.2 System

Unit

Block

Diagram

Figure 1-3 is a block diagram

the T1910 Series system unit.

vee:

+5V

B5V:

Backup

RTC

8acku: p

vee

BIOS

ROM

MCV:

Power

supply

microprocessor

12Y

128Kx8bit

CPU3V:

+3.3V

K B3V: Backup3.3V

(+5V)

(+3V)

(+5

(+3

.3V)

CPU3V

CPU

1488SX

k;) 83VSyatenI

h4MBS

(CACHE

8KB)

Memory i :

()

j20MB

I I

---'

512K x 8bIl x 8

B3V

Syatem

Controller-G A

vee

Maximum

SerIal

Port

9P1n

vee

T9901-SI

)

DMA

x2.

PIC

x2.

PIT

SIC

x 1 text. FDD

25P1n

FOe

VFOx 1

Int.

FDD

3.5-

HOD

2.5"

(IJ

RTC3V

RTC

(IJ

BSY

VGA

ConInIIIr

T1910fT191OCS:

q85V

YRAM

GOGH

Monochrome

LCD

(T1910)

STN

color

LCD

(T191OCS)

)lB5V

PCMCIA

ConL-GA

PCMCIA

C8rdl

~VCC

KBC

lint.

Keyboard

r--

Ball

Paint

Mouse

_~P!'!

1PS12

Keyboard

i.-.

PS/2

McMe Port

Figure 1-3 T1910SeriesSystemBoardBlockDiagram

T1910

SeriesMaintenance ManualAddendum

---------------

Add-3

The T1910 Series system board is composed

the following major components:

i486SX-33 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 (SIO): TC8570

• One Variable Frequency Oscillator (VFO): TC8568

• One I/O Controller

• One Printer Port Controller

• One Speaker Controller

o A Real Time Clock (RTC)

One T9934 chip

used. The T9934

has

128

bytes

memory. Fourteen bytes

memory are used for the calendar and clock. The remaining 114 bytes are used for the

system configuration data.

OSC (X3) generates 32.768 KHz for RTC.

o A Keyboard Controller (KBC)

One M37452M4 chip is used.

This

KBC

includes the keyboard scan controller and keyboard interface controller.

The

KBC

controls the internal keyboard, external keyboard port, PS/2 mouse port,

and Ball Point Quick Port.

o The following memories:

Standard RAM:

Cache memory:

BIOS ROM:

4MB

(inside CPU)

128

(96

are used)

This ROM contains

Initial

Reliability

Test (lRT), Basic

Input/Output System (BIOS), and video BIOS.

Video RAM: 256

Optional memory cards expand memory to a

maximum.

of20

MB.

o VGA display controller

Add-4

GOGH: This controller controls internal and external VGA compatible display.

OSC(X4) generates 28.322MHz for display controller.

OSC(X5) generates 25.175MHz for display controller.

--------------T1910

Series

Maintenance

ManualAddendum

o Clock Generator receives

14.31818

MHz

(X2)

and

generates the

following

frequen-

cies:

•

MHz

for the

CPU

•

14.7456

MHz

for the

COM

•

MHz

for the

FOC

and

VFO

•

MHz

used for

•

14.31818

MHz

used for

T9901

(SI)

• 4.77MHz

used for

KBC

o GateArray

System

Controller Gate

Array

This

gate array

has

the

following

functions:

•

CPU

Controller

•

Memory

Controller

DRAM

Controller

-Compatible Bus Interface Controller

•

SM!

Controller

•

Bus Controller

• Bus Controller

-Compatible Bus Interface Controller

-Compatible Access Controller

DMAC

Controller

-I/O Controller

•

Address

Latch Controller

-32-Bit to 16-Bit Controller

-Address Latch

DMA

Address Generator

-Refresh Address Generator

•

110

-Compatible I/O Port

Saving

the data

the Register (in

resume)

Controller

-Toshiba Special Register

•

MHzI16.5 MHz Controller

• Data Bus Change Controller

• DataLatch

PCMCIA Controller Gate Array

This

gate array has the

following

functions:

•

Memory

Card Controller

-PCMCIA

Card Controller

-Toshiba Modem

Card

Controller

T1910

SeriesMaintenance Manual Addendum

--------------

Add-5

1.3

3.S-inch

Floppy Disk Drive

The T1910 Series 3.S-inch FloppyDiskDrive (FDD) is a

thin,

high-performance reliable drive

that supports 720-KB (fonnatted)

2DD

and I.44-MB (formatted)

2HD

3.S-inch floppy

disks.

The T1910 Series

FDD

is shown inFigure 1-4, and specifications are listed in Table 1-1.

Figure 1-4 3.5-inchFDD

Table 1-1 3.5-inchFDD Specifications

Item 2-MBmode 1-MBmode

Storage

capacity

(1<8)

Unformatted

2,000 1,000

Formatted

1,311 737

Number

heads

2 2

Number

cylinders 80 80

Access

time

(ms)

Track totrack 3 3

Average

181 181

Head

settling time

Recording

track density

(tpl)

135 135

Data

transfer rate (Kbps) 500 250

Rotation

speed

(rpm)

300

Recording

method

Modified

Frequency

Modulation

(MFM)

Add-6

--------------T1910

Series

Maintenance

Manual

Addendum

1.4 2.S-inch Hard Disk Drive

The Hard Disk Drive (HOD)

a random access non-volatile storage device. It

has

a non-

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

The T1910 Series supports a

120

or200

HDD.

A T1910 Series HDD

shown

Figure 1-5, and specifications are listed in Table

1-2.

Figure 1-5 2.5-inch

HDD

Table 1-2 2.5-inchHDD Specifications

120MB

200MB

(CP2124) (MK2124FC) (MK2224FC) (ST9235A)

Storage capacity (MB)

Formatted 121.6 130.1 213.0 209.7

Numberof disks 2 2 2 3

Data heads 4 4 4 6

Data surfaces 4 4 4 6

Tracks per surface 1,123 1,155 1,560 985

Sectors

per

track

(+1) 55 (+1) -

Bytes

per

sector 512 512 512 512

Access time (ms)

Track

track 10 5 3 5

Average 17 17

12 16

Maximum

Rotation speed (rpm) 3,743 3,200 4,000 3449

Data transfer rate (bps)

Tolfrom media

IBM

15.3 M 18.9

31.6 M

Interleave 1

1:1

Recording method 2-7 RLL 1-7 RLL 1-7 RLL 1-7 RLL

T1910

Series

Maintenance

Manual

Addendum

----------------

Add-7

1.5

Keyboard

The 82-(USA)

84-(European) keyboard is mounted onthe T1910 Series system unit, and

is connected

the keyboard controller on the system board through a 19-pin flat cable. The

keyboard is shown in Figure 1-6.

Figure 1-6 Keyboard

Add-a

________________

T1910

Series

Maintenance

ManuaJAtidentium

1.6 Monochrome LCD (T1910)

The monochrome Liquid Crystal Display (LCD)

composed

an LCD module, a Fluores-

cent Lamp (FL), and an FL inverter board.

1.6.1

Monochrome LCD Module

The T1910 monochrome LCD supports

64Ox480

pixels with a Video controller and 64 levels

gray.

The video controller includes the functions

the Video Graphics Array (VGA).

The LCD receives vertical and horizontal synchronizing signals, 8-bit data signals (4-bit upper

block data signals and 4-bit lower block data signals), and shift clock for datatransmission.

All signals are CMOS-level compatible.

The sidelit LCD is shown

Figure 1-7, and its specifications are listed inTable 1-3.

Figure

1-7

Monochrome

LCD

Table

1-3

Monochrome

LCD

Specifications

Item Specifications

Number

Dots

(dots) 640 x 480

Dot

pitch

(mm) 0.30

(W)

x 0.30

(H)

Display area (mm)

198

(W)

150

(H)

Contrast 17:1 (typically)

FLcurrent

(rnA)

5.0

frequency

(KHz)

T1910

Series

Maintenance

Manual

Addendum

--------------

Add-9

1.6.2 Monochrome Fluorescent Lamp (FL) Inverter Board

The

inverter board supplies the high frequency current needed

illuminate the FL.

The

specifications for the

inverter board are listed inTable 1-4.

Table

1-4 Monochrome

Inverter BoardSpecifications

Item Specifications

Input

Voltage (Voe) 5

Power

(W)

2.2

Voltage

(VAC)

950

Output

Current

(rnA)

4.2

Frequency

(KHz)

38.5

Acld-10

---------------T1910

Series

Maintenance

Manual

Addendum

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