NEC Ultralite PC-17-0 Manual

NECHE

UltraLite

Laptop

Computer

UltraLite

Maintenance

And

Service

Manual

Section

Introduction

Section

Unit

Operation

Section

Theory

Operation

and

Troubleshooting

Section

Disassembly,

Board

Identification,

Assembly,

and

Parts

List

Appendix

I/O

Connectors

Appendix

Configuration

Switches

Appendix

Memory

Map

Appendix

Keyboard

Layout

Appendix

Error

Messages

Notice

This

equipment

generates

and

uses

radio

frequency

energy

and

not

installed

and

used

roperly,

that

is,

strict

accordance

with

the

manufacturer’s

instructions,

may

cause

interference

radio

and

television

reception.

has

been

type

tested

and

found

comply

with

Part

and

the

limits

for

Class

computing

device

accordance

with

the

specifications

Subpart

Part

FCC

Rules,

which

are

designed

provide

reasonable

protection

against

such

interference

residential

installation.

the

equipment

does

cause

interference

radio

television

reception,

which

can

determined

turning

the

equipment

OFF

and

ON,

the

user

encouraged

try

correct

the

interference

one

the

following

measures:

Reorientate

the

receiving

antenna

Relocate

the

computer

with

respect

the

receiver

Move

the

computer

away

from

the

receiver

Plug

the

computer

into

another

outlet

that

the

computer

and

receiver

are

different

branch

circuits

necessary,

the

user

should

consult

the

dealer

experienced

radio/television

technician

for

additional

suggestions.

The

user

may

find

the

following

booklet

prepared

the

Federal

Communications

Commission

helpful:

"How

Identify

and

Resolve

Radio-TV

Interference

Problems"

This

booklet

available

from

the

Goverment

Printing

Office,

Washington,

D.C.,

20402.

Warning

This

equipment

has

been

certified

comply

with

and

the

limits

for

Class

computing

device,

pursuant

Subpart

Part

FCC

Rules.

Only

peripherals

(computer

seth

devices,

terminals,

printers,

etc.)

certified

comply

with

Class

limits

may

attached

this

computer.

Operations

with

non-certified

peripherals

likely

result

interference

radio

and

flowin

reception.

interconnecting

Cables

The

Adapter

enclosed

the

UltraLite

box

must

used

connect

the

UltraLite

Personal

Computer

power

source.

For

connecting

peripherals

the

Ultra-

Lite,

the

following

cables

must

used:

Modem

cables

with

RJ-11

connectors

Shielded

RS-232C

Cable

(PC-17-97S)

with

ferrite

toroid

installed

one

end

Operation

without

cables

described

above

could

violate

FCC

rules

and

regulations.

FCC

Requirements

Type

Service

Your

UltraLite

designed

used

standard

device

telephone

lines.

Connection

acoin-service

telephone

(central-office

implemented

system)

provided

telephone

company

prohibited.

Connection

party

lines

service

subject

state

tariffs.

Telephone

Company

Procedure

The

telephone

company

may

occasionally

make

changes

their

equipment,

operations,

procedures.

these

changes

affect

your

service

the

operation

your

equipment,

the

telephone

company

will

give

you

notice,

writing,

allow

you

make

the

necessary

changes

maintain

uninterrupted

service.

you

have

any

questions

about

your

telephone

line,

the

telephone

company

will

provide

you

with

the

information

request.

certain

circumstances,

may

necessary

for

the

telephone

company

request

information

from

you

concerning

the

equipment

you

have

connected

your

telephone

line.

Upon

the

telephone

company’s

request,

please

provide

the

FCC

registration

number

and

the

ringer

equivalence

number

(REN)

the

equipment

which

connected

your

line.

Both

these

items

are

listed

the

equipment

label.

The

sum

all

the

RENs

your

telephone

lines

should

less

than

five

order

provide

service

from

the

telephone

company.

some

cases,

sum

five

may

not

used

given

line.

Any

Problems

Arise

any

your

telephone

equipment

not

operating

properly,

you

should

immediately

remove

from

your

telephone

line,

may

cause

harm

the

telephone

network.

the

telephone

company

notes

problem,

may

temporarily

discontinue

service.

When

practical,

the

telephone

company

will

notify

you

advance

such

disconnection.

advance

notice

not

feasible,

you

will

notified

soon

possible.

When

you

are

notified,

you

will

given

the

opportunity

correct

the

problem,

and

you

will

informed

your

fight

file

complaint

with

the

FCC.

For

information,

please

contact:

NEC

Home

Electronics

1255

Michael

Drive

Wood

Dale,

60191-1094

Software

License

NEC

Home

Electronics

(U.S.A.)

Inc.

("NECHE")

grants

the

customer

non-ex-

clusive

and

non-transferable

license

use

the

following

software

("The

SOFTWARE")

which

contained

delivered

with

the

UltraLite.

The

SOFTWARE

ROM

BIOS

Phoenix

Technologies

Ltd.

MS-DOS

Manager

Microsoft

LAP-LINK

Traveling

Software

SETUP

NEC

Corporation

EXTENDED

BIOS

NEC

Corporation

The

SOFTWARE

means

the

above

computer

programs

contained

the

UltraLite

sae

(read

only

memory)

format

and

the

manuals

which

are

delivered

with

the

UltraLite.

The

SOFTWARE,

whether

ROM

another

format,

copyrighted

and

proprietary

and

trade

secret

information

Phoenix

Technologies

Ltd.,

NEC

Corporation,

other

specified

corporations.

Said

corporations

hereby

affirmatively

retain

all

rights,

title,

and

interest

any

copyrights,

trademarks,

trade

secrets,

other

proprietary

rights

such

SOFTWARE

and

manuals

any

manner

form.

The

customer

may

not,

whole

part,

copy,

modify,

reproduce,

distribute,

sublicense,

sell

the

SOFTWARE.

Neither

NEC,

Phoenix

nor

anyone

else

who

has

been

involved

the

creation,

produc-

tion,

delivery

the

SOFTWARE

shall

liable

for

any

direct,

indirect,

consequential,

incidental

damages

arising

out

the

use

inability

use

the

SOFTWARE

even

has

been

advised

the

possibility

such

damages

claim.

Some

states

countries

not

allow

the

execution

limitiation

liability

for

consequential

incidental

damages

the

above

limitation

may

not

apply

you.

1988

NECHE.

All

rights

reserved.

part

this

publication

may

reproduced

whole

part

without

the

prior

written

permission

NECHE

and

NEC

Corporation.

The

policy

NEC

being

that

continuous

improvement,

the

contents

this

manual

are

subject

change,

from

time

time,

without

notice.

All

efforts

have

been

made

ensure

that

the

contents

this

manual

are

correct.

Should

you

find

any

errors,

however,

shall

appreciate

you

notify

us.

NEC

can

assume

responsibility

for

errors

this

manual

their

consequences.

LAP-LINK

registered

trademark

Traveling

Software

MS-DOS

and

MS-DOS

Manager

are

registered

trademarks

Microsoft

Corporation.

IBM

and

PS/2

are

registered

trademarks

International

Business

Machines

Corpora-

tion.

Hayes

registered

trademark

Hayes

Microcomputer

Products,

Inc.

Introduction

1A:

Features

The

NEC

UltraLite

truly

personal

computer.

other

compatible

computers,

the

UltraLite

runs

standard

MS-DOS

software.

reads

and

writes

the

same

type

3,5"

diskettes

used

the

IBM

PS/2

family

and

most

all

popular

laptops,

including

NEC

MultiSpeed

family

portables.

Many

the

features

the

UltraLite

surpass

those

current

desktop

computers

and

other

laptops.

They

include:

Built-in

MS-DOS

3.3

operating

system

Built-in

Silicon

Hard

Disk

Easy

use

MS-DOS

Manager

interface

CPU

speeds

4.92/9.83

MHz

4.4

pounds

(total

weight)

hour

average

battery

operating

time

Built-in

2400/1200/300

Hayes

compatible

modem

Built-in

software

exchange

files

with

other

computers

(LAP-LINK)

High

density

1.44

3.5"

floppy

drive

(optional)

ROM

memory

card-based

applications

software

1.1.1

Built-in

Software

addition

the

Silicon

Hard

Disk,

the

UltraLite

contains

permanent

Read

Only

Memory,

called

the

system

ROM.

All

computers

have

some

amount

system

ROM,

but

the

UltraLite’s

ROM,

designated

Drive

quite

large.

contains

the

following

built-in

software:

MS-DOS

3.3

MS-DOS

Manager

Silicon

Hard

Disk

Utility

Programs

SETUP

Utility

LAP-LINK

MS-DOS

3.3

MS-DOS

3.3

always

available

the

UltraLite.

One

the

most

useful

MS-DOS

utility

programs

the

EDLIN

editor.

can

used

edit

small

files

and

take

notes

until

word

processor

programming

editor

installed.

UltraLite

Maintenance

and

Service

Manual

MS-DOS

Manager

MS-DOS

Manager

DOS

shell

that

simplifies

using

MS-DOS

the

UltraLite.

automates

many

the

tasks

performed

DOS

commands

and

provides

many

features

offered

extra

cost

hard

disk

management

software.

Silicon

Hard

Disk

Utility

Programs

Silicon

Hard

Disk

Utility

programs

are

included

the

system

ROM

re-initialize

and

format

the

Silicon

Hard

Disk

and

setup

MS-DOS

Manager.

These

utility

programs

are

only

needed

used

one

time,

unless

the

Silicon

Hard

Disk

erased

power

loss

reformatted.

SETUP

Utility

The

SETUP

Utility

small

resident

program

which

allows

the

user

control

the

processor

speed,

screen

brightness,

and

other

settings.

SETUP

can

also

customize

the

use

gray

levels

the

UltraLite

LCD

screen.

LAP-LINK

file

transfer

utility

used

conjunction

with

the

UltraLite

null

modem

cable

exchange

files

with

another

laptop

desktop

computer.

Although

LAP-LINK

built

into

the

UltraLite,

necessary

install

the

remote

computer.

When

transferring

files

LAP-LINK,

one

the

LAP-LINK

floppy

disks

(3.5"

and

5.25")

and

the

cable

are

required.

1.1.2

Inspection

the

UltraLite

open

the

unit,

pull

forward

the

cover

latches.

Cever

Latches

Front

Electro-

luminescent

LCD

Screen

LCD

Contrast

“ye

Control

fadicatay

Power

Switch

Memory

Card

Cover

2...

Embedded

Srieawod

see

Key

les

EEE

ELE

LEE

Lok

eee

UitraLite

Maintenance

and

Service

Manual

Rear

Panel

External

Disk

Drive

Adaptor

Modem

Port

Plug

Telephone

RS232C

Port

The

external

disk

drive

port

NEC

proprietary

interface

between

the

UltraLite

and

the

optional

external

disk

drive

and

parallel

port

adapter.

These

devices

provide

standard

parallel

port.

The

Adapter

plug

designed

work

only

with

the

NEC

Adapter

provided

with

the

UltraLite.

The

RJ11

port

marked

"LINE"

connected

the

telephone

network,

using

the

NEC

modem

cable

included

with

the

UltraLite.

The

port

marked

"TEL"

used

attach

telephone

unit

for

convenience

while

communicating.

The

RS-232C

serial

port

NEC

proprietary

connector

that

works

conjunction

with

the

NEC

cables

provide

either

serial

port

compatible

with

those

found

PC/XT

compatible

computers

the

IBM

PS/2,

null

modem

connection

PC/XT

PS/2.

Cables

provided

with

the

UltraLite:

9-pin

DIN

DB25

(Straight)

Serial

Cable

Null

Modem

Adapter

(25-pin

25-pin

9-pin)

Bottom

Side

Backup

Power

Switches

Memo

Card

Cover

Hard

Disk

Cover

ROM

Board

Cover

Note

the

location

the

Backup

Power

Switches

(remove

protective

cover).

UltraLite

Maintenance

and

Service

Manual

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