NEC versa 2400 schematic

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PROPRIETARY NOTICE AND LIABILITY DISCLAIMER

The info rmat ion disclos ed in t his do cument , inclu ding all designs and r elat ed materials, is the valuable pr opert y of NEC Cor p oration (NEC) and/or its licensors. NEC and/or its licensors, as appropriate, r eserve all pat ent, copyright and other proprietary rights to t his document, including all design, manufacturing, reproduction, use, and sales rights t heret o, except to the extent said rights are expressly granted to others.

The NEC product(s) discussed in this document are warr anted in accordance with the terms of the Warranty Statement accompanying each product. However, actual performance of each such product is dependent upo n fact ors such as system configuration, customer data, and operator control. Since implementation by customers of each product may vary, the suitability of specific product configurations and applicat ions must be determined by the customer and is not warranted by NEC.

To allow for design and specification impro vement s, t he information in this do cument is subject to change at any time, without no tice. Reproduct ion of this document or po rtions thereof without prior written approval of NEC is prohibited.

Versa is a U.S. registered trademark of NEC Technologies, Inc. FastFacts, and NEC SVGA, are U.S. trademarks of NEC Technologies, Inc. All other p roduct, brand, or tra de names used in t his public ation a re the tr ademarks or regis tered

trademarks of their respective trademark owners.

First Printing — September 1996

NEC Technologies, Inc. NEC Corporation

1414 Massachusetts Avenue 7-1 Shiba 5-Chome, Minato-Ku

Boxborough, MA 01719 Tokyo 108-01, Japan

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Preface

This service and reference manual contains the technical information necessary to set up, and maintain the NEC Versa® 2400 Series notebook computer. It also provides hardware and interface information for users who need an overview of the system’s design. The manual is written for NEC-trained customer engineers, system analysts, service center personnel, and dealers.

The manual is organized as follows: Section 1  Introduction, provides an overview of the hardware and interface compo-

nents. Section 2  General Specifications, lists system specifications including dimensions,

weight, environment, safety compliance, and power consumption. Section 3  Hardware Functional Overview, defines major system functions and subsys-

tems.

Section 4  Field Service Guidelines, provides system disassembly procedures, and an exploded-view diagram with corresponding part numbers.

Section 5  Troubleshooting and Repair, lists technical support phone numbers, error messages and their meanings, and ways to troubleshoot the notebook.

Appendix A  Video Modes, provides a list of video modes available for use with the notebook.

An Index is included for convenience.

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Preface......................................................................................................................... xi

Abbreviations............................................................................................................... xiii

Section 1 Introduction

Feature Highlights........................................................................................................ 1-2

System Configuration................................................................................................... 1-3

Quick Tour of the Notebook........................................................................................ 1-4

Main Components................................................................................................. 1-4

Color LCD Display Panel............................................................................... 1-4

Power Switch/LCD Cover Switch.................................................................. 1-4

Status Panel and Power Indicator................................................................... 1-5

iii

Keyboard....................................................................................................... 1-5

VersaGlide..................................................................................................... 1-7

Memory Slot Compartment............................................................................ 1-7

The Right Side Of the Notebook........................................................................... 1-8

Built-in Floppy Disk Drive ............................................................................. 1-8

PCMCIA Slot Compartment.......................................................................... 1-8

Hard Disk Drive Compartment....................................................................... 1-9

Front of the Notebook .......................................................................................... 1-9

Battery Compartment..................................................................................... 1-9

Left Side of the Notebook..................................................................................... 1-10

DC-IN Connector Jack................................................................................... 1-10

Hardware Reset Switch.................................................................................. 1-10

The Rear of the Notebook..................................................................................... 1-11

External Keyboard and PS/2 Mouse Port ....................................................... 1-11

VGA Port...................................................................................................... 1-12

Printer Port.................................................................................................... 1-13

Serial Port (COM 1)....................................................................................... 1-13

Bottom of the Notebook....................................................................................... 1-14

Battery Module Handle and Lock................................................................... 1-14

ROM Memory Compartment Cover............................................................... 1-14

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iv Contents

System BIOS Setup Program....................................................................................... 1-14

The Boot Setup Menu.................................................................................................. 1-15

System Upgrades......................................................................................................... 1-19

Memory Upgrade Procedure........................................................................................ 1-19

System BIOS Upgrade Procedure................................................................................ 1-21

Section 2 General Specifications

Product Mix................................................................................................................. 2-6

System Board Specifications........................................................................................ 2-7

Transfer Board Specifications ...................................................................................... 2-8

Converter Board Specifications.................................................................................... 2-8

LED Indicator Board................................................................................................... 2-9

I/O Board .................................................................................................................... 2- 10

LCD Inverter Board..................................................................................................... 2-12

LED Status Indicators.................................................................................................. 2-13

FDD Specification........................................................................................................ 2-13

HDD Unit Specification............................................................................................... 2-14

NiMH Battery Pack Specification................................................................................. 2-14

DC/DC Converter & Battery Charger Specification...................................................... 2-15

Battery Charger ........................................................................................................... 2-15

Keyboard..................................................................................................................... 2-16

AC/DC Adapter........................................................................................................... 2-16

BIOS........................................................................................................................... 2-17

Micro-Controller Function Description ........................................................................ 2-18

Power Management Features (Mode Definition) .......................................................... 2-19

Power Management Features (Mode Transition).......................................................... 2-20

Hot Key Definition....................................................................................................... 2-21

Environmental Specification......................................................................................... 2-21

Power Source.............................................................................................................. 2-22

Vibration ..................................................................................................................... 2-22

Shock .......................................................................................................................... 2-23

Electro-static Discharge (ESD).................................................................................... 2-23

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Section 3 Hardware Functional Overview

Functional Block Diagram............................................................................................ 3-2

System BIOS............................................................................................................... 3-3

System Processor.................................................................................................. 3-3

Major Functional Blocks....................................................................................... 3-3

System Logic Controller .............................................................................................. 3-4

Memory Subsystem...................................................................................................... 3-6

DRAM Memory.................................................................................................... 3-6

ROM Memory ...................................................................................................... 3-6

I/O Subsystem ............................................................................................................. 3-6

Video Subsystem ......................................................................................................... 3-7

Video Chipset Controller ...................................................................................... 3-7

External VGA Capability....................................................................................... 3-8

Contents v

Keyboard Subsystem.................................................................................................... 3-8

PCMCIA Controller and Sockets................................................................................. 3-9

Hard Disk Subsystem................................................................................................... 3-10

Floppy Disk Drive Subsystem ...................................................................................... 3-10

Pointing Device Subsystem .......................................................................................... 3-10

Power Subsystem......................................................................................................... 3-10

AC Power Adapter ............................................................................................... 3-11

Internal Battery Pack ............................................................................................ 3-11

Powerboard .......................................................................................................... 3-11

LCD Inverter Board Assembly.............................................................................. 3-11

Section 4 Field Service Guidelines

Preventive Maintenance ............................................................................................... 4-1

Cleaning the Notebook’s Exterior......................................................................... 4-1

Cleaning the Notebook’s Interior .......................................................................... 4-2

Protecting the Disk Drives .................................................................................... 4-2

Handling the Computer Battery Packs................................................................... 4-2

Maintaining the LCD Quality ................................................................................ 4-3

Required Tools and Equipment.................................................................................... 4-3

Parts Removal and Replacement Procedures................................................................ 4-4

Removing/Replacing the Notebook Battery Pack .................................................. 4-4

Removing/Replacing the Hard Disk Drive Module ................................................ 4-5

Removing/Replacing the Floppy Disk Drive Module ............................................. 4-5

Removing/Replacing the LCD Status Bar Cover and Hinges................................. 4-6

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vi Contents

Removing/Replacing the Keyboard........................................................................ 4-7

Removing/Replacing the Heat Plate....................................................................... 4-7

Removing/Replacing the CPU............................................................................... 4-7

Removing/Replacing the Cover-Display LCD Assembly Module........................... 4-8

Removing/Replacing the System Top Cover Assembly

and the VersaGlide Assembly............................................................................. 4-8

Removing/Replacing the LED Board..................................................................... 4-9

Removing/Replacing the System Board and I/O Board.......................................... 4-10

Separating the System Board and I/O Board ......................................................... 4-11

Removing/Replacing the Power Board.................................................................. 4-12

NEC Versa 2400 Series Illustrated Parts Breakdown............................................. 4-13

Packaging and Documentation.............................................................................. 4-16

Section 5 Troubleshooting and Repair

Service Information...................................................................................................... 5-1

Technical Support........................................................................................................ 5-1

Product Information..................................................................................................... 5-2

Ordering Information from FastFacts .................................................................... 5-2

Helpful Starters............................................................................................................ 5-3

Power On Self Test (POST)......................................................................................... 5-4

POST Messages.................................................................................................... 5-4

Informational Messages......................................................................................... 5-7

Run-time Error Messages...................................................................................... 5-8

Quick Troubleshooting ................................................................................................ 5-9

Appendix A Video Modes

List of Figures

1-1 NEC Versa 2400 Series Notebook................................................................. 1-1

1-2 System Configuration Diagram....................................................................... 1-3

1-3 Standard Keyboard Layout............................................................................. 1-5

1-4 VersaGlide..................................................................................................... 1-7

1-5 Memory Slot Compartment............................................................................ 1-7

1-6 Inserting a PCMCIA Card.............................................................................. 1-8

1-7 Removing the Battery Pack............................................................................ 1-9

1-8 Left Side of the Notebook.............................................................................. 1-10

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1-9 Connecting the AC Adapter to the Notebook................................................. 1-10

1-10 The Rear Side of the Notebook...................................................................... 1-11

1-11 Connecting External Keyboard and Mouse..................................................... 1-11

1-12 Connecting an External Monitor..................................................................... 1-12

1-13 Connecting to the Printer Port........................................................................ 1-13

1-14 Connecting to the Serial Port ......................................................................... 1-13

1-15 The Boot Setup Menu.................................................................................... 1-15

3-1 Functional Block Diagram.............................................................................. 3-2

4-1 Hard Disk Drive Module Assembly ................................................................ 4-5

4-2 Floppy Drive Module Assembly ..................................................................... 4-6

4-3 The LED Board Module Assembly................................................................. 4-9

Contents vii

4-4 The System Board Module Assembly............................................................. 4-10

4-5 The I/O Board Module Assembly................................................................... 4-11

4-6 Power Board Module Assembly..................................................................... 4-12

4-7 NEC Versa 2400 Series Illustrated Parts Breakdown...................................... 4-15

List of Tables

1-1 Model Configurations .................................................................................... 1-1

1-2 Feature Highlights.......................................................................................... 1-2

1-3 Fn Key Combination Summary....................................................................... 1-6

1-4 Boot Main Setup Menu.................................................................................. 1-16

1-5 Boot Setup Peripherals Menu......................................................................... 1-17

1-6 Boot Setup Security Menu............................................................................. 1-17

1-7 Boot Setup Power Savings Menu................................................................... 1-18

1-8 8 MB Memory Configurations........................................................................ 1-20

1-9 16 MB Memory Configurations...................................................................... 1-20

2-1 NEC Versa 2400 Series Specifications........................................................... 2-1

2-2 Product Mix................................................................................................... 2-6

2-3 Main Board Specifications.............................................................................. 2-7

2-4 Transfer Board Specifications......................................................................... 2-8

2-5 Converter Board Specifications...................................................................... 2-8

2-6 LED Indicator Board Specifications............................................................... 2-9

2-7 I/O Board Specifications................................................................................ 2-10

2-8 LCD Inverter Board Specifications................................................................. 2-12

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viii Contents

2-9 Status LED Descriptions................................................................................ 2-13

2-10 FDD Specifications ........................................................................................ 2-13

2-11 Hard Disk Drive Specifications....................................................................... 2-14

2-12 CD-ROM Reader Specifications..................................................................... 2-14

2-13 Battery Specifications..................................................................................... 2-14

2-14 DC/DC Converter & Battery Charger ............................................................ 2-15

2-15 Battery Charger Specifications....................................................................... 2-15

2-16 Keyboard Specifications................................................................................. 2-16

2-17 AC/DC Adapter Specifications....................................................................... 2-16

2-18 BIOS Specifications....................................................................................... 2-17

2-19 Micro-Controller Specifications...................................................................... 2-18

2-20 Power Management Modes............................................................................ 2-19

2-21 Mode Definitions ........................................................................................... 2-20

2-22 Hot Keys........................................................................................................ 2-21

2-23 Environmental Specifications.......................................................................... 2-21

2-24 Power Specifications...................................................................................... 2-22

2-25 Vibration Specifications ................................................................................. 2-22

2-26 Shock Specifications...................................................................................... 2-23

2-27 Electro-static Discharge (ESD) Specifications................................................ 2-23

4-1 NEC Versa 2400 Series Field-Replaceable Parts............................................. 4-13

4-2 Packaging and Documentation Part Numbers................................................. 4-16

5-1 NEC Service and Information Telephone Numbers......................................... 5-1

5-2 POST Error Messages.................................................................................... 5-4

5-2 POST Error Messages.................................................................................... 5-5

5-3 BIOS Informational Messages........................................................................ 5-7

5-4 Run-time Error Messages............................................................................... 5-8

5-5 Quick Troubleshooting................................................................................... 5-9

A-1 VGA Standard Modes (Text Mode)............................................................... A-1

A-2 VGA Standard Modes (Graphics Mode) ........................................................ A-2

A-3 VGA Standard Modes (Planar Mode) ............................................................ A-2

A-4 VGA Standard Modes (Packed Pixel Mode) .................................................. A-2

A-5 VGA Extended Modes (Text Mode).............................................................. A-3

A-6 VGA Extended Modes (4-Bit Linear Mode)................................................... A-3

A-7 VGA Extended Modes (8-Bit Linear Mode)................................................... A-3

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A-8 VGA Extended Modes (15-Bit Linear Mode)................................................. A-3

A-9 VGA Extended Modes (16-Bit Linear Mode)

- 1 MB Video Memory Only ......................................................................... A-4

A-10 VGA Extended Modes (24-Bit Linear Mode)................................................. A-4

A-11 VGA Extended Modes (Planar Mode)............................................................ A-4

A-12 VGA Extended Modes (Packed Pixel Mode).................................................. A-4

A-13 VGA High Refresh Modes (Packed Pixel Mode)............................................ A-5

A-14 VGA High Refresh Modes (Planar Mode)...................................................... A-5

A-15 VGA High Refresh Modes (Packed Pixel Mode)............................................ A-5

Contents ix

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(For United States Use Only)

FEDERAL COMMUNICATIONS COMMISSION

RADIO FREQUENCY INTERFERENCE STATEMENT

WARNING:

responsible for compliance could void the user’s authority to operate the equipment.

NOTE:

dig ita l dev ice, pur su ant to Pa rt 15 of t he FCC Rule s. The se limit s a re des igne d t o p ro vid e reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.

How e v e r , t h e r e is no gu a r ante e th a t inte rfe r e n c e w ill n ot oc c u r in a p ar tic u la r ins ta lla tion. I f this equipment does cause harmful inter ference to radio o r television recept ion, which can be determined by turning the equipment off and on, the user is encouraged to tr y to cor rect the interference by one or more of the following measures.



Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver.



Connect the equipment to an outlet on a circuit differ ent from the one to which the receiver is connected.

Use a shielded and properly grounded I/O cable to ensure compliance of this unit to the specified limits of the rules.

Changes or modifications to this unit not expressly approved by the party

Th is eq uip ment ha s be en t es t ed and fou nd t o co mp ly wit h t he limit s fo r a C lass B

(For Canadian Use Only)

This equipment is a Class B digital apparatus which complies with the Radio Interference Regulations, C.R.C., c.1374. Cet appareil numérique de la classe B est conforme àu Règlement sur le brouillage radioélectrique, C.R.C., ch.1374.

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Abbreviations

xiii

A ampere AC alternating current AT advanced technology

(IBM PC) BBS Bulletin Board System BCD binary-coded decimal BCU BIOS Customized Utility BIOS basic input/output system bit binary digit bpi bits per inch bps bits per second BUU BIOS Upgrade Utility C centigrade Cache high-speed buffer storage CAM constantly addressable memory CAS column address strobe CD-ROM compact disk-ROM CGA Color Graphics Adapter CGB Color Graphics Board CH channel clk clock cm centimeter CMOS complementary metal oxide

semiconductor COM communication CONT contrast CPGA ceramic pin grid array CPU central processing unit CRT cathode-ray tube DAC digital-to-analog converter DACK DMA acknowledge DC direct current DIP dual in-line package DLAB Divisor Latch Address bit DMA direct memory access DMAC DMA controller

DOS disk operating system DRAM dynamic RAM DTE data terminal equipment ECC error checking and correction EDS error detecting system EGA Enhanced Graphics Adapter EMS Expanded Memory

Specification EPP enhanced parallel port EPROM erasable and programmable

ROM EVGA Enhanced Video Graphics

Array F Fahrenheit FAX facsimile transmission FCC Federal Communications

Commission FG frame ground FM frequency modulation Fn Function FRU field-replaceable unit GB gigabyte GND ground HDD hard diskdrive HEX hexadecimal HGA Hercules Graphics Adapter Hz hertz IC integrated circuit ID identification IDE intelligent device electronics IDTR interrupt descriptor table

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xiv Abbreviations

IRR Interrupt Request register ISA Industry Standard Architecture ISR In Service register I/O input/output IPC integrated peripheral controller ips inches per second IRQ interrupt request K kilo (1024) k kilo (1000) KB kilobyte kg kilogram kHz kilohertz kV kilovolt lb pound LDTR local descriptor table register LED light-emitting diode LSB least-significant bit LSI large-scale integration M mega mA milliamps max maximum MB megabyte MDA Monochrome Display Adapter MFM modified frequency modulation Mhz megahertz mm millimeter ms millisecond MSB most-significant bit NASC National Authorized Service

Center NC not connected NDP numeric data processor NMI Non-maskable Interrupt ns nanosecond NSRC National Service Response

Center PAL programmable array logic

PCB printed circuit board PFP plastic flat package PIO parallel input/output pixel picture element PJQFP plastic J-lead quad flat pack PLCC plastic lead chip carrier PLL phase lock loop p-p peak-to-peak PPI programmable peripheral

interface PROM programmable ROM QFP quad flat pack RAM random-access memory RAMDAC RAM digital-to-analog RAS row address strobe RGB red green blue RGBI red green blue intensity ROM read-only memory rpm revolutions per minute R read RTC real-time clock R/W read/write S slave SCSI Small Computer System

Interface SDLC Synchronous Data Link

Control SG signal ground SOIC small outline integrated circuit SQFP silver quad flat package SVGA Super Video Graphics Array SW switch TCP Thin chip package TQFP Thin-quad flat package TSC Technical Support Center TTL transistor/transistor logic tpi tracks per inch

PC personal computer

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UART universal asynchronous

receiver/transmitter V volt Vdc volts, direct current VESA video electronics standards

association VFO variable frequency oscillator VGA Video Graphics Array VLSI very large-scale integration VRAM virtual RAM W watt µf microfarad µPD microprocessor

Abbreviations xv

µs microsecond Ω ohm

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Section 1

Introduction

This section focuses on providing outline features and operations of the NEC Versa 2400 Notebook Computer Series, including the BIOS Setup program. (Refer to the User’s Guide for more information how to operate the notebook.) The NEC Versa 2400 Series of notebooks are lightweight, compact, and fully IBM compatible.

The NEC Versa 2400 Notebook Series comes in the following model configurations.

Table 1-1 Model Configurations

Configuration NEC Versa 240X NEC Versa

240XCD

CPU

On-Board DRAM Video Memory Hard Disk Drive Color LCD Battery Pack

* Models contain built-in CD-ROM readers

Intel P54CSLM100

8 MB 8 MB 16 MB 1 MB 1 MB 1 MB 810 MB 1 GB 1 GB

11.3” DSTN LCD 11.3” DSTN LCD 11.3” DSTN LCD A (3500mA NiMH) A (3500mA NiMH) A (3500Ma NiMH)

Intel P54CSLM100

NEC Versa

243XCD

Intel P54CSLM133

Figure 1-1 NEC Versa 2400 Series Notebook

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1-2 Introduction

FEATURE HIGHLIGHTS

The NEC Versa 2400 notebook series includes a variety of innovative features designed to meet the most demanding computing requirements:

Table 1-2 Feature Highlights

Features Description CPU

Memory

Display

VGA

HDD FDD Keyboard

Pointing Device PCMCIA Slot

I/O Port

Intel P54CSLM-100MHz (Intel P54CSLM-133MHz for 243X) processor with internal 16KB cache memory and math coprocessor

On-board 8MB RAM (16MB for NEC Versa 243XCD) and can be upgraded to 40MB

11.3” DSTN VGA Color LCD at 600 x 800 pixels resolution with 256 colors

32-bit Video PCI bus VGA controller/ 1MB RAM Video Memor Supports up to 1024 x 768 pixels resolution for external CRT monitor with 256 colors

Built-in 2.5-inch IDE high capacity hard drive (12.7mm height) Built-in 3.5-inch 1.44MB floppy disk drive Built-in 87/88-ke

embedded numeric ke dedicated screen control ke enhanced 101/102-key compatible keyboard

VersaGlide Two PCMCIA 2.1 card slots that support two T

same time or one Type III and one Type II PC cards at the same time 1 x Serial Port (w/ FIFO) / 1 x Printer Port (ECP/EPP) / 1 x VGA Port

/ 1 x PS/2 keyboard & mouse port

keyboard with 12 programmable function keys,

pad and special function control keys,

s, and inverted “T” cursor keys / IBM

pe II PC cards at the

Power System

Auto-switchin Battery pack / Advanced power management capabilities

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AC Adapter (90V - 264V) / Rechargeable NiMH

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SYSTEM CONFIGURATION

The following diagram shows the NEC Versa 2400 system configuration.

Introduction 1-3

INTEL

P54CSLM(TCP)

CPU

BIOS

Flash ROM

8 / 16MB RAM

On-Board

Upgradable to

48MB

Bank 1 (Slot 1)

4 / 8 / 16MB

DIMM

Built-in

HDD

Color LCD (800x600)

DSTN

VL Bus

Controller

(VGA)

Glide Pad

Pointin

Device

Keyboard

Serial Interface

(RS-232C)

Parallel

Interface

PCMCIA Card

Slot x 2

External VGA

Monitor

PS/2 Keyboard

and

PS/2 Mouse

RS-232C

Peripheral

Printer

PCMCIA Card

3.5" FDD Battery Pack

Figure 1-2 System Configuration Diagram

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1-4 Introduction

QUICK TOUR OF THE NOTEBOOK

Take a moment to become familiar with the locations and functions of all controls. It is recommended that you first go through the notebook’s user guide for more information on how to operate all of the features.

Main Components

This section describes the main features of the NEC Versa 2400 computer.

Color LCD Display Panel

Both the NEC Versa 240X and 243X series have a built-in 11.3” passive matrix dual scan DSTN color liquid crystal display (LCD) which you can adjust and tilt to your desired viewing position. The LCD provides 800x600 pixel resolution with a maximum of 256 colors, and supports simultaneous display with an external VGA monitor.

The LCD screen also uses Cold Cathode Fluorescent Tube (CCFT) backlighting which consumes most of the power from the notebook. To save battery power, the system has an advanced power management feature that powers down the LCD when it has not been used for a predetermined amount of time. You can adjust the brightness and contrast level of the LCD by pressing the “Fn “ key (lower left corner) and the desired brightness or contrast keys (lower right corner) at the same time.

Power Switch/LCD Cover Switch

The power switch button, when pressed, turns on the notebook’s power. Press it again to turn computer power off. Whenever the notebook is in “Save-to-file” suspend mode, the power switch button serves as a manual resume switch that allows you to continue your application work at the place you last left it before the suspend mode was activated.

NOTE: Always wait for a few seconds between turning off and turning on the power. Likewise, check to see if the power switch is turned off before installing the power supply.

On the top of the unit underneath the right hinge is the LCD cover switch button. This button automatically depresses and releases when you lower or raise the LCD display panel. Depending on your power management settings, this button will either switch the notebook to the Suspend mode or will shut off the LCD when you close the cover.

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NOTE: If the NEC Versa 2400 has been left un- used for a prolonged period of time the battery may become completely discharged. It will then be necessary for you to reconnect the AC adapter for approximately 30 minutes before the battery will begin to recharge normally.

Status Panel and Power Indicator

Directly below the LCD display, in the center near the right hinge, is the Suspend Mode LED Displays. These LEDs provide an easy way of determining what the power mode the unit is in at the moment. Below these two LEDs is a row of seven more. These LEDs will light to indicate whether a device is being accessed, whether an operation is being done, or if a certain mode is or has been activated.

Introduction 1-5

Keyboard

The notebook has a built-in 87/88-key keyboard that provides complete emulation of a fullsized IBM AT-enhanced keyboard with function keys and screen/cursor control keys.

Figure 1-3 Standard Keyboard Layout

The notebook keyboard includes an embedded numeric keypad, and some special function keys that are activated by pressing the <Fn> key together with another key. These special function keys (more popularly known as “hot keys”) allow you to control and adjust some of the notebook’s functions like; display controls, speaker volume, and power management features. The embedded numeric keypad is activated by pressing the <Num Lock> key. Once the <Num Lock> key is pressed the upper blue symbols will become active.

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1-6 Introduction

NOTE: Activating the Num Lock key will in turn disable the alphanumeric keys where the embedded keys are located. Press the Num Lock key again to disable the embedded keys and resume normal keyboard operation.

Table 1-3 Fn Key Combination Summary

Key Combination

<Fn>

key +

<right>

<Fn>

<left>

<Fn>

<Up>

<Fn>

key

key +

key

key +

key

key +

key

key +

key

key +

key

key +

key

key +

key

key +

key

key +

key

Function

This key combination puts the system in Suspend mode.

This key combination mutes the speaker volume.

This ke displa LCD and CRT.

This ke and off.

This key combination increases the contrast level.

This key combination decrease the contrast level.

This ke LCD.

This ke tally.

combination toggles between video display output to the LCD

, to an external CRT monitor, or to a simultaneous display of

combination toggles the LCD display backlighting (CCFT) on

combination increase the brightness incrementally for the

combination decreases the brightness incrementally for the

combination increases the speaker volume level incremen-

combination decreases the speaker volume level incremen-

The notebook’s keyboard also features an embedded editing keypad, which offers an optional method for editing and moving within documents. The embedded editing keys are color coded in blue and embedded on the front side of the embedded numeric keypads. To use these editing keys, first press the

Num Lock

key and then combine the

Shift

key + the

desired function key to enable these editing keys. When the embedded editing keys are operational, the Num Lock LED will be activated. To return to normal keyboard operation, press the

Num Lock

key again. When the Num Lock LED glows the embedded numeric

key pads are activated.

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VersaGlide

In front of the keyboard panel, in the center of the palm rest typing surface, is the VersaGlide pointing device. The buttons below the glide pad are configured (by default) as the left and right button respectively. While the button to the right is configured as the right button on the mouse. Moving the pointer on the screen is done by moving your finger over the surface and directing the pointer where you want it to go. The VersaGlide is compatible with the standard PS/2 mouse and can be activated using the normal DOS or Windows IBM or PS/2 mouse driver.

Introduction 1-7

Figure 1-4 VersaGlide

Memory Slot Compartment

The memory compartment is located just under the keyboard. Inside the compartment are two extra memory module sockets which can accommodate any standard JEDEC 4MB, 8MB, and 16MB DIMM modules.

Figure 1-5 Memory Slot Compartment

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1-8 Introduction

The Right Side of the Notebook

This section describes the features on the right side of the NEC Versa 2400 computer.

Built-in Floppy Disk Drive

On the right-front side of the notebook you will find the floppy disk drive which supports

3.5-inch 1.44MB high density (HD) diskettes or 720KB double-sided (DS) diskettes. Insert the floppy diskette with the metal shutter towards the drive and the diskette label facing up. To remove the floppy diskette, you press the eject button found on the upper right of the floppy disk drive.

PCMCIA Slot Compartment

The PCMCIA slot compartment houses two card slots that support two PCMCIA Type II devices or one Type III device. Open the compartment door to view the PCMCIA slots. Insert Type III cards into the lower slot. Insert the card with the pin sockets facing towards the drive and the label facing up. To remove the PCMCIA card, push on the eject button to release the pin connections and slowly pull out the card.

The NEC Versa 2400 Series also comes with DOS/Windows PCMCIA drivers for supporting various PCMCIA cards like modem cards, network cards, and other I/O and memory cards. The LED Status Bar, likewise, provides lights to indicate when the computer is accessing the inserted PCMCIA cards. The upper PCMCIA slot is referred to “ the bottom slot is referred to as “ drive designations.

Figure 1-6 Inserting a PCMCIA Card

Slot 1

”. Slot 0 always takes precedence over Slot 1 in

Slot 0

” while

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Hard Disk Drive Compartment

Just beside the floppy disk drive, and below the PCMCIA slots, is the notebook’s internal hard drive. The NEC Versa 2400 provides industry standard 2.5-inch IDE hard disk drive at 810MB and 1GB. The System BIOS of the notebook also includes Auto IDE detection and LBA mode for easy installation as well as later upgrades for higher capacity disk drives.

Front of the Notebook

This section describes the features on the front side of the NEC Versa 2400 computer.

Battery Compartment

In the left front corner of the notebook is the battery compartment. It houses the rechargeable NiMH battery pack. The battery pack begins charging whenever you connect the AC adapter to the notebook. It is very important to always have the battery installed on the notebook, to have it always charged. Leaving the battery pack out of the unit for a long period of time will completely drain the battery cells.

Introduction 1-9

To remove the battery pack from the compartment unit, push the battery compartment release lock and slowly pull out the battery pack.

NOTE: There are two types of battery packs for the NEC Versa 2400 Series. The NEC Versa 240X models uses Type A battery packs with 3500mA; while the NEC Versa 243X models uses Type B battery packs with 3500mA. Both battery packs are not interchangeable and may cause damage to the computer if swapped.

Figure 1-7 Removing the Battery Pack

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1-10 Introduction

Left Side of the Notebook

The following details the left side of the NEC Versa 2400.

DC-IN Connector

Reset Switch

Figure 1-8 Left Side of the Notebook

DC-IN Connector Jack

To the left of the PCMCIA compartment, you will find a connector jack for the AC. The NEC Versa 2400 series provides a universal auto-switching AC adapter where you connect the AC power cord and into the power outlet. It is important to have the AC adapter connected to the notebook to recharge the battery and keep the notebook working continuously.

NOTE: Use only the AC adapter that comes with the NEC Versa 2400 notebook.

Power Switch

Figure 1-9 Connecting the AC Adapter to the Notebook

Hardware Reset Switch

To the right of the AC adapter connector jack, you will notice a small hole which allows an easy alternative to resetting the notebook’s hardware.

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The Rear of the Notebook

The following details the rear side of the NEC Versa 2400.

Introduction 1-11

Serial Port

Parallel Port

Figure 1-10 The Rear Side of the Notebook

External Keyboard and PS/2 Mouse Port

The external keyboard and PS/2 mouse port allows you to connect an external full-sized IBM AT-enhanced keyboard. When an external keyboard is connected, both the built-in keyboard of the notebook and the external keyboard can be used simultaneously.

The NEC Versa 2400 also provides a Y-connector adapter allowing simultaneous use of an external AT-enhanced keyboard and a PS/2 mouse. When the external PS/2 mouse is connected using the Y-connector, the built-in VersaGlide is disabled.

VGA Port

Ext. K/B and PS/2 Mouse Port

Figure 1-11 Connecting External Keyboard and PS/2 Mouse

NOTE: When connecting an external PS/2 mouse, it is required that you power off the computer first before connecting the PS/2 mouse. This way, the system can detect the external PS/2 mouse and disable the built-in VersaGlide.

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1-12 Introduction

VGA Port

The 15-pin female VGA connector allows you to connect an external VGA monitor that supports up to 1024x768 pixels resolution. When displaying on the external VGA monitor alone, the VGA port can support resolution at 800x600 at 256 colors and 1024x768 at 16 colors for the NEC Versa 2400 and 640x480 at 64K colors, 800x600 at 256 colors, and 1024x768 at 256 colors for both the NEC Versa 2400 and 2430.

The NEC Versa 2400 series provides a VGA VESA driver diskette for installing different display resolution drivers for Windows Setup. You can also toggle the display between the LCD and the external monitor by pressing the <Fn> key + <F10> key combination.

NOTE: Even when set to 800x600 or 1024x768 resolution, the external monitor will only show 800x600 resolution if the computer is running at Simultaneous display. You need to toggle the display to the external monitor only in order to display higher resolution.

Refer also to Appendix A for a list of supported video modes.

Figure 1-12 Connecting an External Monitor

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Printer Port

The 25-pin printer port provides a parallel interface to connect a parallel printer or pocket network adapter. Many operating systems and software applications refer to this port as LPT1. You can run the BIOS SETUP program to change the configuration of the parallel port to Standard or Bi-directional.

Figure 1-13 Connecting to the Printer Port

Introduction 1-13

Serial Port (COM 1)

The 9-pin serial port provides a serial interface for a RS-232C device such as external serial modem. This port is commonly referred to as COM1.

Figure 1-14 Connecting to the Serial Port

NOTE: First power off the system before con- necting an external serial device. After turning on the power again, run the BIOS SETUP program if needed.

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1-14 Introduction

Bottom of the Notebook

The following details the bottom of the NEC Versa 2400.

Battery Module Handle and Lock

To release the battery module from its compartment, push the battery compartment latch as indicated by the arrow marked on it. While doing this, hold the handle of the battery module and slowly pull it out from its compartment.

ROM Memory Compartment Cover

The ROM memory compartment cover is secured by tabs. Lift the cover with your fingernail to open this cover. Inside is the ROM chip. It is not neccessary to remove this cover while performing normal service operations.

SYSTEM BIOS SETUP PROGRAM

This section provides the outline features and operation of the Phoenix BIOS Setup program used in the NEC Versa 2400 Series. The BIOS (Basic Input-Output System) Setup program allows you to change the system configuration settings such as the current date and time, the disk drive and ports settings, and the power management as well.

As POST (Power-On Self Test) executes during boot up process, the screen will display the following message:

Press F2 to Enter SETUP

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Press the F2 key to run the BIOS Setup program. The BIOS Setup program is organized into two pages of menus. Change settings using the PgDn and PgUp keys. To move from one option to another, you use the up and down arrow keys while using the spacebar and keys to change the settings.

To exit the BIOS Setup program, simply press the Esc key and select from the pop-up window whether you want to load the default values for all fields; save your changes and exit; or exit without saving any changes.

THE BOOT SETUP MENU

The boot setup menu allows you to change the following configurations:

Introduction 1-15

Figure 1-15 The Bootup Setting Menu

The boot setup menus let you configure system settings as listed in the following tables.

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g sy

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1-16 Introduction

Table 1-4 Boot Main Setup Menu

Item Function

System Time This option allows you to change the system time, using the

format time here or from your operating system’s command prompt.

System Date This option allows you to change the system date, using the

format here or from your operating system’s command prompt.

Diskette A This option allows you to specify the type of diskette drive

mounted inside the notebook. The default settin option is

HDD LBA Mode The NEC Versa 2400 supports LBA (logical block addressing)

mode which is drives over DOS’ limit of 528MB.

Hard Disk This option allows you to specify the type of hard drive

mounted inside the notebook. Select the

detect the relevant parameters of the hard drive. Some hard drives, however, do not respond correctl

values detected. In such cases, from the list, the make and model of the drive being used.

Base Memory This field reports the amount of base (or conventional)

memor should not exceed or go below 640KB.

hour : minute : second

month day, year

3.5”, 1.44MB disk drive

Enabled

Auto

option to instruct the BIOS to automatically

found by the BIOS during its POST. The value

. You can change the system

. You can change the system date

for this

automatically for large capacity hard

to the

ou must search and select,

Extended Memory This field reports the amount of extended memory found b

the BIOS during POST. The value displayed is the amount of the memor Versa 2400 series have a minimum of 8MB of memor standard confi 3072KB.

Boot Sequence This option allows you to configure the computer to which

drive it will first try to look for the operating system. Select

is no diskette found in the flopp try to load the operating system from the hard drive.

Select there is no operatin computer will tr drive.

Select system and all necessary startup file configurations.

Num Lock This option allows you to toggle the Num Lock key on or off. Keyboard Repeat

Rate

This option allows you to select the auto-repeat key speed. Possible values include

address map. Because all models in the NEC

uration, this value should not be less than

A: then C:

C: then A:

C: only

if you want to boot from a diskette. If there

drive, the computer will then

if you want to boot from a hard drive. If

stem found in the hard drive the

to load the operating system from a flopp

if the hard drive already holds an operating

2, 6, 10, 13.3, 18.5, 21.8, 26.7, or 30

as the

seconds.

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g y

g ag

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Table 1-5 Boot Setup Peripherals Menu

Item Function Serial Port

Infrared Serial Port

Parallel Port

Parallel Mode

Diskette Controller IDE Adapter

This option allows as either (3F8-IRQ4), (2F8-IRQ3), (3E8-IRQ4), (2E8-IRQ3), or none. The default setting is (3F8-IRQ4).

This option allows serial port as either (3F8-IRQ4), (2F8-IRQ3), (3E8-IRQ4), (2E8-IRQ3), or none. The default is (2F8-IRQ3).

This option allows port as either (378-IRQ5), (3BC-IRQ7), (278-IRQ5), (378IRQ7), or none. The default is (378-IRQ7).

This option allows mode as either Unidirectional, Bi-directional, Enhanced, or ECP. The default is ECP.

This option allows you to disable the floppy disk controller. This option allows you to disable the IDE adapter.

Introduction 1-17

ou to configure the notebook’s serial port

ou to configure the notebook’s infrared

ou to configure the notebook’s parallel

Table 1-6 Boot Setup Security Menu

Item Function Password

Set Password Password on Boot

Password on Resume

This option allows the use of a password. If dow will appear askin password can be up to seven characters in len cleared by eliminating the password with the F1 key.

Note: If you forget the password of the computer, the only way to access the system again is to discharge the CMOS battery. See note below.

<Enter>

Press This option allows

abled at the operating system level. This option allows

abled when resuming from the suspend mode. The CapsLock and ScrollLock LED’s will flash in sequence for

30 seconds, indicatin sume. The LED’s will start flashin hit until a password is entered.

ou to limit access to the computer through

ou select this option, a pop-up win-

ou to set or change the password. A

th, and is

to enter the Password.

ou to configure the Password to be en-

that the password is required to re-

ain as soon as a key is

NOTE:

You can discharge the CMOS battery by simply unplugging the RTC CMOS battery from the connector CN11 of the motherboard. You must wait for 10 minutes before plugging in the battery again.

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+ 74 hidden pages

NEC versa 2400 schematic

Specifications and Main Features

Frequently Asked Questions

User Manual

Preface

Contents

Abbreviations

Introduction