NEC NEC Computer Systems Division, Packard Bell NEC, Inc Ampere, Alternating current, Centigrade

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Abbreviations

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 disk drive

HEX

hexadecimal

HGA

Hercules Graphics Adapter

Hz

hertz

IC

integrated circuit

ID

identification

IDE

intelligent device electronics

IDTR

interrupt descriptor table

 

register

IMR

Interrupt Mask register

in.

inch

INTA

interrupt acknowledge

IPB

illustrated parts breakdown

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Contents Sold by laptopia2005 do not Resell Preface Contents System Bios Upgrade Procedure Removing/Replacing the Heat Plate Assembly Removing/Replacing the LED BoardVGA Standard Modes VGA Extended Modes VGA High Refresh Modes List of Tables Viii Contents Sold by laptopia2005 do not Resell For United States Use Only Error checking and correction Bios Customized UtilityBios Upgrade Utility Direct memory accessPhase lock loop Service registerNational Authorized Service National Service ResponseVdc Volts, direct current Universal asynchronousReceiver/transmitter VoltIntel P54CSLM-133 Model ConfigurationConfiguration NEC Versa Feature Highlights Feature HighlightsSystem Configuration Diagram System ConfigurationMain Components Power Switch/LCD Cover SwitchStatus Panel and Power Indicator Quick Tour of the NotebookNormal keyboard operation Disables the alphanumeric keys where the embedAgain to disable the embedded keys and resume Ded keys are located. Press the Num Lock keyVersaGlide Fn Key Combination Summary cont’dPC Card Slot Compartment Right Side of the NotebookMemory Slot Compartment Built-in Disk DriveFront of the Notebook Battery CompartmentLeft Side of the Notebook Removing the Battery PackRear of the Notebook 11 Connecting an External Keyboard and PS/2 Mouse VGA Port Printer Port Bottom of the NotebookROM Memory Compartment Cover Battery Module Handle and LockBoot Setup Menu System Bios Setup ProgramOption is 3.5, 1.44 MB disk drive Boot Main Setup MenuBoot Setup Peripherals Menu Boot Main Setup Menu cont’dPassword on Re Boot Setup Security MenuFunction Password Password on BootStandby Time-out Boot Setup Power Savings MenuPower Saving 16 MB Memory Configurations System UpgradesMemory Upgrade Procedure Boot Setup Power Savings Menu cont’dSystem Bios Upgrade Procedure Sold by laptopia2005 do not Resell NEC Versa 2500 Series Specifications General SpecificationsNEC Versa 2500 Series Specifications cont’d Sold by laptopia2005 do not Resell AC 100V to 240V, 47/63Hz, 36W Max CD-ROM Versa Product MIXFollowing table lists the NEC Versa 2500 Series product mix Product MixMain Board Specifications System Board SpecificationsFollowing table lists system board specifications Following table lists Converter board specifications Transfer Board SpecificationsConverter Board Specifications Following table lists Transfer board specificationsLED Indicator Board Specifications LED Indicator Board SpecificationsFollowing table lists LED indicator board specifications I/O Board Specifications Board SpecificationsFollowing table lists I/O board specifications I/O Board Specifications cont’d Specification LCD Inverter Board SpecificationsFollowing table lists LCD inverter board specifications LCD Inverter Board SpecificationsStatus LED Descriptions LED Status IndicatorsDiskette Drive Specifications 10 Diskette Drive SpecificationsFollowing table lists the standard battery specifications HDD Unit SpecificationsCD-ROM Specifications Nimh Battery Pack SpecificationsFollowing table lists battery charger specifications DC/DC Converter & Battery Charger SpecificationsBattery Charger Specifications Following table lists AC/DC adapter specifications Keyboard SpecificationsAC/DC Adapter Specifications Following table lists keyboard specifications18 Bios Specifications Bios SpecificationsFollowing table lists Bios specifications MICRO-CONTROLLER Function Description Following table lists Micro-Controller specifications18 Bios Specifications cont’d 19 Micro-Controller SpecificationsMode Device Speed Power Management Features Mode DefinitionFollowing table lists power management specifications 20 Power Management Modes21 Mode Definitions Power Management Features Mode TransitionFollowing table lists power management transition modes Following table lists hot key definitions Environmental SpecificationsFollowing table lists appropriate operating temperatures HOT KEY DefinitionShock Specifications Power Source SpecificationsVibration Specifications 27 Electro-Static Discharge Specifications ELECTRO-STATIC Discharge ESD SpecificationsFollowing table lists static discharge specifications Hardware Functional Overview System Bios Functional Block DiagramMajor Functional Blocks System ProcessorSystem Logic Controller Sold by laptopia2005 do not Resell Subsystem Memory SubsystemDram Memory ROM MemoryVideo Chipset Controller Video SubsystemKeyboard Subsystem External VGA CapabilityHard Disk Subsystem Pcmcia Controller and SocketsPoin ING Device Subsystem Power SubsystemAC Power Adapter Diskette Drive SubsystemLCD Inverter Board Assembly Internal Battery PackPower Board Cleaning the Notebook’s Exterior Preventive MaintenanceProtecting the Disk Drives Cleaning the Notebook’s InteriorHandling the Computer Battery Packs Required Tools and Equipment Maintaining the LCD QualityRemoving/Replacing the Notebook Battery Pack Parts Removal and Replacement ProceduresRemoving/Replacing the Diskette Drive Module Removing/Replacing the Hard Disk Drive ModuleRemoving/Replacing the LCD Status Bar Cover and Hinges Diskette Drive Module AssemblyRemoving/Replacing the CPU Removing/Replacing the KeyboardRemoving/Replacing the Heat Plate Removing/Replacing the Cover-Display LCD Assembly Module Removing/Replacing the LED Board Removing/Replacing the System Board and I/O Board LED Board Module AssemblySystem Board and I/O Boards Separating the System Board and I/O BoardI/O Board Module Assembly Removing/Replacing the Power BoardDescription Part Number Illustrated Parts BreakdownNEC Versa 2500 Series Field-Replaceable Parts Not shown in IPB figure NEC Versa 2500 Series Field-Replaceable Parts cont’dNEC Versa 2500 Series Illustrated Parts Breakdown Packaging and Documentation Part Numbers Packaging and DocumentationTechnical Support Service InformationNEC Service and Information Telephone Numbers Service CallOrdering Information from FastFacts Product InformationHelpful Starters Message Possible Cause Action POWER-ON Self Test PostPost Error Messages Post MessagesSetup Post Error Messages cont’dValue , read hex-value Informational Messages Bios Informational MessagesMessage Cause Action Run-time Error MessagesFollowing table lists run-time error messages Run-time Error MessagesProblem Corrective Actions Quick TroubleshootingQuick Troubleshooting Quick Troubleshooting cont’d Sold by laptopia2005 do not Resell Following table lists VGA standard modes Table A-1 VGA Standard Modes Text ModeVGA Standard Modes Table A-4 VGA Standard Modes Packed Pixel Mode Table A-2 VGA Standard Modes Graphics ModeTable A-3 VGA Standard Modes Planar Mode Table A-8 VGA Extended Modes 15-Bit Linear Mode Table A-5 VGA Extended Modes Text ModeTable A-6 VGA Extended Modes 4-Bit Linear Mode Table A-7 VGA Extended Modes 8-Bit Linear ModeTable A-12 VGA Extended Modes Packed Pixel Mode Table A-10 VGA Extended Modes 24-Bit Linear ModeTable A-11 VGA Extended Modes Planar Mode VGA High Refresh Modes Table A-13 VGA High Refresh Modes Packed Pixel ModeTable A-14 VGA High Refresh Modes Planar Mode Table A-15 VGA High Refresh Modes Packed Pixel ModeBattery Replacement Index Memory Index-3

NEC Versa 2500 Series User's Guide 25-10584-00, NEC Computer Systems Division, Packard Bell NEC, Inc specifications

NEC Computer Systems Division was a prominent entity in the realm of personal computing, renowned for its innovative products and advanced technologies. One of its most notable contributions to the market was the Packard Bell NEC, Inc., a brand that combined the strengths of two industry giants to offer cutting-edge computing solutions. Among the various products offered by this partnership, the NEC Versa 2500 Series stood out as a noteworthy achievement, embodying a blend of portability, performance, and user-centric design.

The NEC Versa 2500 Series was designed primarily for business and professional users who required a reliable and efficient mobile computing solution. Its main features included a sleek and lightweight design, making it easy for users to carry the device wherever their work took them. The laptop was equipped with a robust Intel processor, delivering commendable performance for a variety of applications, from word processing to graphics design.

One of the defining characteristics of the Versa 2500 Series was its versatility. Featuring a modular bay design, users could customize their system with a variety of add-ons such as additional drives, batteries, or even a second hard drive. This allowed professionals to tailor their device to better meet their specific needs, enhancing productivity on the go.

In terms of display, the NEC Versa 2500 Series boasted a vibrant screen that provided clear and bright visuals, essential for presentations and detailed work. The keyboard was ergonomic, ensuring comfortable typing for extended periods, a crucial aspect for business users who often found themselves working long hours. Additionally, the laptop included a range of connectivity options, such as USB ports, a floppy disk drive, and expansion slots, making it easy to link with other devices and peripherals.

The NEC Versa 2500 Series also incorporated advanced technologies that enhanced its performance and user experience. Its energy-efficient design contributed to longer battery life, allowing users to work uninterrupted even while traveling. The inclusion of NEC’s proprietary software solutions further optimized the device's performance, ensuring smooth operation and increased efficiency.

In summary, the NEC Versa 2500 Series, under the umbrella of NEC Computer Systems Division and Packard Bell NEC, Inc., offered a compelling combination of features, technologies, and characteristics that catered to the needs of mobile professionals. With its emphasis on portability, modularity, and efficiency, the Versa 2500 Series solidified its position as a preferred choice for those seeking a dependable mobile computing solution in the competitive landscape of the late 1990s and early 2000s.