Toshiba Satellite Pro 420CDT Bedienungsanleitung

420 Series 1-1

1.1 Features

The 420CDT/420CDS (420 Series) is one of the lightest and most advanced portable comput-

ers available. Utilizing advanced technology and high-speed components, the 420 series

offersmultimediafunctions,excellentdisplaylegibility,batteryoperation,andIBMPC/AT

compatibility. The 420 series system unit consists of the following features:

❑Microprocessor

An Intel Pentium processor with Voltage Reduction Technology (VRT) that operates

at 100 MHz and 3.3/2.9 volts.

❑Disk storage

The 420CDT has an internal 1.3 billion byte (1.26 GB) or 810 million byte (770 MB)

Hard Disk Drive (HDD). The 420CDS has an internal 810 million byte HDD. A 3.5-

inch Floppy Disk Drive (FDD) supports 2HD (1.44 MB) floppy disks and 2DD (720

KB) floppy disks. The FDD can also be installed in an attachment for connection as an

externaldevice.

❑CD-ROM Drive

A full-size, six-speed CD-ROM drive module can be installed instead of the FDD

module. The CD-ROM drive contains an ATAPI (AT attachment packet interface)

interface controller, and supports the following formats: audio CD, photo CD, CD-

plus, and ISO 9660.

❑Memory

Standard with 8 MB of CMOS RAM. This includes 640 KB of conventional memory

and 7360 KB of extended memory, which can be utilized as expanded memory com-

patible with the Lotus/Intel/Microsoft Expanded Memory Specification (LIM-EMS).

❑Display

The 420CDT has an 11.3-inch, Thin Film Transistor (TFT) color LCD with 800 x 600

pixels. The 420CDS has an 11.3-inch Dual-scan Supertwist Nematic (DSTN) color

LCD with 800 x 600 pixels. The built-in display controller supports 800 x 600 resolu-

tion with 16M colors capability and up to 1280 x 1024 resolution with 256 colors on

an external CRT.

❑Keyboard

An-easy-to-use 82/84-key keyboard provides a numeric keypad overlay for fast nu-

meric data entry or for cursor and page control. The keyboard supports software that

uses a 101- or 102-key enhanced keyboard.

1-2 420 Series

❑Batteries

Three different batteries: an Li-Ion main battery, a backup battery (for memory

backup), and an RTC battery (for Real Time Clock).

❑Expansionmemoryslot

An optional 8, 16, or 32 MB memory module can be installed in the memory slot.

❑Parallel port

Can be used to connect a Centronics compatible printer or other parallel device. The

port supports ECP (Extended Capabilities Port) conforming to IEEE·1284.

❑Serial port (9-pin)

The serial controller is 16550UART compatible. This port can be used to connect such

serial devices as a serial printer, serial mouse, or external modem.

❑External monitor port

The female, 15-pin, D-shell connector can be connected to an external SVGA monitor.

❑PS/2 mouse/keyboard port

Either a PS/2 compatible keyboard or a PS/2 compatible mouse can be connected to

this port. The computer automatically recognizes which device is connected.

❑FDD port

Enables a connection of the external FDD attachment if the CD-ROM module is

installedinsidethesystemunit.

❑PC card slot

A PC card slot accommodates two 5mm cards (Type II) or one 10.5mm (Type III)

card, which support PCMCIA Release 2.01 cards. These slots also support advanced

cards, including PC Card 16 multifunction cards as well as the Zoomed Video (ZV)

port, which is dedicated to high-performance video data transfer such as MPEG video

playback.

❑Enhanced port replicator port

Enables connection of an enhanced port replicator. The enhanced port replicator has

two PC card slots (Type III), and expands connections to the following devices: PS/2

keyboard, PS/2 mouse, serial port, parallel port, external CRT, joystick/MIDI port,

audio line-in, audio line-out, headphone, external FDD, AC-in, AC-out, and rotary

switch (ID select switch).

❑AccuPoint

A pointer control stick, located in the center of the keyboard, provides convenient

control of the cursor without requiring desk space for a mouse.

420 Series 1-3

❑Infrared port

Incorporates an IrDA1.0 (115.2Kbps supported) standard infrared transmitter and

receiver.

❑Sound System

A Sound Blaster Pro compatible sound system provides capability to record sound and

play it back with a built-in microphone and speaker. The sound system is equipped

with a volume control dial, headphone jack, microphone jack, and audio line-in jack.

The 420 Series Personal Computer is shown in Figure 1-1.

Figure 1-1 420 series personal computer

The 420 system configuration is shown in Figure 1-2.

Figure 1-2 420 system unit configuration

1-4 420 Series

1.2 System Unit Block Diagram

Figure 1-3 is a block diagram of the 420 series system unit.

Figure 1-3 420 series system board block diagram

420 Series 1-5

The 420 series system board is composed of the following major components:

❑Microprocessor

One Intel Pentium processor with VRT 64-bit microprocessor

Intel Pentium processor operates at 100 MHz and 3.3/2.9 volts

❑Standard RAM

8 MB, four 1Mx16-bit chips

3.3 volt operation

No parity bit

Access time 60 ns

Data transfer is 64-bit width

EDO (extended data output) supported

❑BIOS ROM (Flash EEPROM)

128 KB (one 128Kx8-bit chip) memory

64 KB in the ROM are used for system BIOS

40 KB in the ROM are used for VGA BIOS

24 KB in the ROM are reserved

Access time 150 ns

Data transfer is 8-bit width

❑Video RAM

2 MB (Four 256Kx16-bit DRAM)

5 volt operation

❑Optionalmemory

One expansion memory slot is available for 8, 16, and 32 MB memory modules, which

consist of some 1 MBx16-bit chips.

Total maximum memory size is 40 MB (if a 32 MB memory module is installed).

3.3 volt operation

No parity bit

Access time 60 ns

Data transfer is 64-bit width

EDO (extended data output) supported

❑One super integration (SI)

Thefollowing components:

- Two DMACs 82C37equivalent

- Two PICs 82C59equivalent

- Two UART 16550equivalent

- One PIT 82C54equivalent

- One FDC TC8565equivalent

- One VFO TC8568equivalent

- One I/O port decode

- One SIO port control

- One printer port control supported ECP

- One FDD control

- One speaker control

- One power communication control

1-6 420 Series

❑System Controller Gate Array (SCPCNT-GA)

This gate array has the following functions:

• CPU control

- SMI control

- CPU clock control

• Memory control

- 64-bit bus memory control

- 32-bit bus memory control

• Bus control

- 64-bit data bus <==>32-bit data bus

- 32-bit local bus control

• Address latch control

• I/O register control

• Processing speed control

❑ISA Bus Controller Gate Array (SISCNT-GA)

This gate array has the following functions:

• Bus control

- 32-bit data bus <==> 16-bit data bus

- ISA bus interface control

- ISA bus access control

- DMAC control

- DMA address generation

- I/O control

- Suspend/Resumesequence

• Memory control

- ISA bus interface control

- Refresh address generation

• I/O register control

• Suspend/Resumesequence

❑PC Card Controller Gate Array

This gate array has the following functions:

• PCMCIA memory card control

• PCMCIA I/O card control

❑I/O Controller Gate Array (IOCNT-GA)

This gate array has the following functions:

• InternalCommunicationcontroller

- KBC, main CPU communication register file

- KBC interrupt controller

- KBCcommunicationcontroller

-I

C bus control

420 Series 1-7

• Others

- Speaker volume adjust PWM control

- Sound board interface

- BIOS-ROMinterface

- SMI control

- IrDA (SIR) control

❑Video Controller

Chips & Technologies F65550 is used

This video controller controls internal TFT/DSTN color LCD and external SVGA

compatibleCRT.

❑Keyboard Controller (KBC)

One M38802M4 chip is used

This KBC includes the keyboard scan controller and keyboard interface

controller. The KBC controls the internal keyboard, external keyboard, and

PS/2 mouse.

❑AccuPoint Controller (IPSC)

One KPAAC0062A chip is used

This controller provides simultaneous control of both the AccuPoint and a

PS/2 mouse.

❑Real Time Clock (RTC)

One T9934 chip is used

The T9934 has 128 bytes of memory. Fourteen bytes of memory are used for the

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

data.

1-8 420 Series

1.3 3.5-inch Floppy Disk Drive

The 420 series 3.5-inch removable FDD is a thin, high-performance reliable drive that sup-

ports 720-KB (formatted) 2DD and 1.44-MB (formatted) 2HD disks. When a CD-ROM is

installed in the Selectable Bay, an FDD attachment can be used to connect the FDD to an

external FDD port.

The 420 series FDD is shown in Figure 1-4.

Figure 1-4 3.5-inch FDD

The specifications for the FDD are listed in Table 1-1.

Table 1-1 3.5-inch FDD specifications

Item 2-MB mode 1-MB mode

Storage capacity (KB)

Unformatted 2,000 1,000

Formatted 1,475 737

Number of heads 2 2

Number of cylinders 80 80

Access time (ms)

Track to track 3 3

Average 181 181

Head settling time 15 15

Recording track density (tpi) 135 135

Data transfer rate (Kbps) 500 250

Rotation speed (rpm) 300 300

Recording method Modified Frequency Modulation (MFM)

420 Series 1-9

1.4 2.5-inch Hard Disk Drive (HDD)

The Hard Disk Drive is a random access non-volatile storage device. It has a non-removable

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

The 420CDT supports 1.3 billion bytes (1.26GB) and 810 million bytes (770MB).The

420CDS supports 810 million bytes (770MB).

The 420 series is shown in Figure 1-5.

Figure 1-5 2.5-inch HDD

Specifications for the HDD are listed in Table 1-2.

Table 1-2 2.5-inch HDD specifications

770 MB 1.26 GB

Items MK1926FCV DSOA-20810 MK1301MAV

Formatted capacity (byte) 814,915,584 812,851,200 1,358,880,768

Number of disks 3 2 3

Logical heads 16 16 16

Logical cylinders 1,579 1,575 2,633

Bytes per sector 512 512 512

Rotation speed (rpm) 4,200 4,000 4,200

1-10 420 Series

1.5 Keyboard

The 82-(USA) or 84-(European) key keyboard is mounted on the 420 series system unit. The

keyboard is connected to the keyboard controller on the system board through a 25-pin flat

cable. The 420 series pointer control stick, located in the center of the keyboard, provides

convenient control of the cursor without requiring desk space for a mouse. The keyboard is

shown in Figure 1-6.

See Appendix E for optional keyboard configurations.

Figure 1-6 Keyboard

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