Acorn Computers Limited A4000 Operating and safety instructions

Acorn A4000

Welcome Guide

Acorn A4000

Welcome Guide

Welcome to the Acorn A4000 computer!

As the Acorn family grows larger, so our range of products continues to increase and

diversify. Your new Acorn A4000 is the result of on-going development here at Acorn,

and is made to the high standards of quality and reliability that existing Acorn users

have come to expect.

We value your comments and feedback, so please let your supplier know of any

suggestions you have as to how we might improve our service to you — the Acorn

A4000 incorporates many such suggestions from existing Acorn owners. Your supplier

will also assist you should you ever feel dissatisfied with any aspect of our product or

service — Acorn suppliers have full support from Acorn itself.

To help us provide you with the best service, please complete and return the enclosed

Owner Registration Form. This enables us to keep our valued and growing family of

users informed about new developments. You are not of course obliged to answer all

the questions, should you prefer to leave any of them blank.

The first part of this guide introduces the computer to you; it explains how to

connect it together and how to start using it.

It doesn't matter if you've never used a computer before, the system is easy to use, and

you need learn only a few simple techniques to get going. You can pick up the details

as you go along.

The Hardware reference section gives you some advice about looking after your

computer, along with more detailed information, which you may need to refer to

when you want to add things like printers.

Once you have set everything up and mastered the basic techniques described in this

guide, the RISC OS 3 User and Applications Guide also supplied will help you to get the

best out of your computer and answer many other questions you may have about how

the computer works.

Managing Director

Acorn Computers Limited

Published by Acorn Computers Technical Publications Department.

No part of this publication may be reproduced or transmitted, in any form or by any means, electronic,

mechanical, photocopying, recording or otherwise, or stored in any retrieval system of any nature, without the

written permission of the copyright holder and the publisher, application for which shall be made to the

publisher.

This product is not intended for use as a critical component in life support devices or any system in

which failure could be expected to result in personal injury.

The product described in this manual and products for use with it are subject to continuous development and

improvement. All information of a technical nature and particulars of the product and its use (including the

information and particulars in this manual) are given by Acorn Computers Limited in good faith. However,

Acorn Computers Limited cannot accept any liability for any loss or damage arising from the use of any

information or particulars in this manual, or any incorrect use of the products. All maintenance and service on

the product must be carried out by Acorn Computers' authorised dealers or Approved Service Centres. Acorn

Computers Limited can accept no liability whatsoever for any loss or damage caused by service, maintenance

or repair by unauthorised personnel.

If you have any comments on this manual, please complete the form at the back of the manual, and send it

to the address given there.

Acorn supplies its products through an international distribution network. Your supplier is available to help

resolve any queries you may have.

Within this publication, the term 'BBC' is used as an abbreviation for 'British Broadcasting Corporation'.

ACORN and ECONET are trademarks of Acorn Computers Limited

Apple is a trademark of Apple Computer Inc.

Atari is a trademark of Atari Corporation

DOS is a trademark of Microsoft Corporation

PostScript is a trademark of Adobe Systems Inc.

Centronics is a trademark of Centronics Data Computer Corporation

LaserWriter is a trademark of Apple Computer Inc.

Multisync is a trademark of NEC Limited

NEC is a trademark of NEC Limited

Panasonic is a trademark of Matsushita Electric Industrial Co. Ltd

Philips is a trademark of Philips Electronics Ltd

Taxan is a trademark of Kaga Electronics Co. Ltd

All other trademarks are acknowledged.

Published by Acorn Computers Limited

ISBN 1 85250 128 5

Part number 0494,650

Issue 5, June 1993

Guidelines for safe operation

The equipment described in this guide is designed and manufactured to comply with international safety standards EN60950 (BS7002) and is

intended for use only as a desktop computer. It must not be used for other purposes. It is most important that unpacking and operation is carried out

in accordance with the instructions given in this guide. In the interests of continued safe and reliable operation, observe the following guidelines'

• Keep the machine at a room temperature of +5°C to +35°C (+41° to +95° Fahrenheit) and a relative humidity of 20% to 80% (non-

condensing). As a rough guide, if you feel much too hot, cold or humid, the conditions are probably too extreme for the computer as well.

• Avoid sudden extremes in temperature, exposure to direct sunlight, heat sources (e.g. electric fan heater) or rain.

• Stand equipment on a rigid horizontal flat surface, allowing enough space for air to circulate when in use.

• Ensure that any wires and cables are routed sensibly so that they cannot be snagged or tripped over. Don't tug or twist any wires or cables,

or use them to hang or lift any of the units.

• Position the monitor at least 50cm away from other monitors (especially if back-to-back) to avoid interference.

• Make sure you've read and understood any installation instructions supplied with upgrade kits before attempting to fit them. If in doubt,

contact your supplier

• Keep the original packaging in case you need to transport the computer.

• Keep the plastic bags contained in the packaging away from children.

• The equipment shall be installed near the power outlet, which shall be readily accessible.

• If you're going to move the computer, park the hard disc first.

• Switch off and unplug the equipment at night, or if you're not going to use it for a few days.

• Switch off and unplug the equipment and any accessories before opening the unit (e.g. to install an upgrade).

• The main computer unit should be operated with the top cover (which also acts as a fire enclosure) secured, to ensure the correct airflow

through the unit.

• DON'T attempt to open any display or monitor, whether supplied with the equipment or not.

• DON'T drop the equipment or subject it to excessive bumping and jarring.

• DON'T spill liquid on the equipment. If you do, turn the equipment off immediately and take it to your supplier for assessment.

• DON'T obstruct, cover or poke objects through the ventilation openings in the computer casing or power supply

• DON'T exceed the maximum power consumption of 3 watts from the expansion card slot.

• DON'T balance any objects, or stand equipment weighing more than 25kg (33Ibs) on top of this equipment.

Warning: this equipment must be earthed

If the plug supplied is not suitable for the power supply in your country, please consult your supplier.

UK information

The mains lead supplied with the power supply unit is already fitted with a moulded plug incorporating a 5A fuse. If it does not fit your socket-

outlet, the plug should be removed from the mains lead and safely disposed of. The flexible cord insulation should then be stripped back as

appropriate. A suitable alternative plug should then be fitted. If the replacement plug is intended to take a fuse, then a 5A fuse must be used. If

you need to replace the fuse in the mains plug supplied, then you must use a 5A fuse ASTA-approved to BS1362.

As the colours of the cores in the AC power lead of this equipment may not correspond to the coloured markings identifying the terminals

in your plug, proceed as follows:

• The core which is coloured green and yellow must be connected to the terminal in the plug coloured green and yellow, or marked by the

letter E or by the earth symbol

• The core which is coloured blue must be connected to the terminal coloured black or marked with the letter N.

• The core which is coloured brown must be connected to the terminal coloured red or marked with the letter L.

Never use mains plugs with the fuse carrier omitted. If you lose the fuse carrier, either replace it with a carrier of the same type and

manufacturer or replace the moulded plug with another mains plug, wired as detailed above.

Guarantee (valid in UK only)

This equipment is guaranteed by Acorn Computers Limited ("ACORN") against mechanical and

electrical defects subject to the conditions set out below.

Note

Items which by their nature or design only have a restricted life are not guaranteed beyond such life.

Period of validity

This guarantee shall be valid for a period of twelve (12) months from the date of purchase.

Other conditions

1 This guarantee is personal to the original purchaser, is not transferable and shall not be valid

unless the equipment was purchased from ACORN or from an approved ACORN supplier.

2 This guarantee will be invalidated if the equipment is misused or damaged or is modified in any way

without the written consent of ACORN or if any original component or accessory has been replaced by

any component or accessory of a type not recommended or approved by ACORN, or if operated other

than in accordance with the

Welcome Guide

and RISC OS 3 User and Applications Guide

3 Any claims made under this guarantee must whenever possible be made through the supplier from whom

the equipment was originally purchased. If this is not possible a claim may be made to any other

approved ACORN supplier appointed by ACORN to service the equipment (a list of whom can be

supplied on application). This guarantee together with proof of the date of purchase must be produced

when any claim is made. Any costs of carriage to and from the supplier must be paid by the purchaser.

4 If ACORN agrees with the supplier that the equipment should be forwarded to ACORN for repair then

ACORN will arrange for collection and return of the equipment at no charge. In all other cases the

supplier will be responsible for effecting any necessary repairs in accordance with ACORN's service

policy. Any repairs under this guarantee will be carried out at no cost to the original purchaser.

5 If any equipment returned is found to comply with its original specification ACORN reserves the right

to charge a reasonable fee for testing the equipment and for return carriage.

6 The liability of ACORN under this guarantee shall be limited to the cost of repair or complete

replacement (at ACORN's discretion) of equipment which proves to be defective.

7 ACORN does not accept liability for any loss or damage during transit to or from the supplier or

ACORN, but every effort will be made to investigate claims of loss or damage if these arise.

THIS GUARANTEE DOES NOT AFFECT OR PREJUDICE THE PURCHASER'S STATUTORY RIGHTS.

Guarantee procedure

To claim under this guarantee, proof of date of purchase is required. This is provided by your copy of the

invoice from the supplier from whom the equipment was originally purchased. Keep the invoice safe and

produce it to support any claim you may make under this guarantee.

You may find it useful to make a note in the box below of the serial number, date of purchase and

details of any upgrades you fit, and quote them in any correspondence.

Documentation roadmap

This roadmap will help you decide which tools and manuals you will need, as you start

to use your Acorn A4000 computer and develop your skills

Contents

Getting started

The chapters in

this part contain all the information you need to get started

on your computer.

Unpacking 1

Describes what you should find when you open the box containing your

computer.

Setting up the computer 3

Explains how to connect everything together.

Switching on 7

Tells you how to turn the computer on and describes the display on the

screen.

The RISC OS desktop 11

Introduces the features of the RISC OS desktop.

Using the mouse 13

Describes what the mouse does, and how to use it.

Windows 17

Explains the special features of the screen display.

Menus and dialogue boxes 25

Explains how menus work within the RISC OS desktop.

Discs and disc drives 31

Tells you about floppy disc drives and hard disc drives.

Using the keyboard 39

Introduces the keyboard and some of its features.

Using applications 43

Tells you how to start running applications.

Files and directories 47

Introduces the desktop filing system.

Printing 55

Gets you started using a printer.

Switching off the computer 61

Tells you how to switch off your computer after you've finished using it.

If things go wrong 63

Offers solutions to some common problems you might encounter.

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