Epson Equity LT-286e Manuale utente

EPSON

EQUITY™LT™-286e

System

Diagnostics

User’s

Guide

IMPORTANT NOTICE

DISCLAIMER OF WARRANTY

Epson America makes no representations or warranties, either express or implied, by

or with respect to anything in this manual, and shall not be liable for any implied

warranties of merchantability and fitness for a particular purpose or for any indirect,

special, or consequential damages. Some states do not allow the exclusion of

incidental or consequential damages, so this exclusion may not apply to you.

retrieval system, or transmitted, in any form or by any means, electronic, mechanical,

photocopying, recording, or otherwise, without the prior written permission of Epson

America, Inc. No patent liability is assumed with respect to the use of information

contained herein. While every precaution has been taken in the preparation of this

publication, Epson America assumes no responsibility for errors or omissions. Nor is

any liability assumed for damages resulting from the use of the information contained

herein. Further, this publication and features described herein are subject to change

without notice.

TRADEMARKS

Epson is a registered trademark of Seiko Epson Corporation.

Equity and LT are trademarks of Epson America, Inc.

MS-DOS is a registered trademark of Microsoft Corporation.

1989 by Epson America, Inc.

Torrance, California Y19499100200

Contents

Introduction.. .........................................

Starting the Diagnostics Program.

..........................

Creating a Database

.....................................

The DIAG Main Menu Screen

............................

Selecting Diagnostics Tests

...............................

Setting the Run Time Parameters

..........................

Timebound Testing

.................................

Continuous Testing

.................................

Passbound Testing

..................................

Error Logging.. ....................................

Executing Diagnostics Tests in Batch Mode

..................

Running the Tests.

......................................

System Board Diagnostics

.................................

Basic Functionality Test

.............................

CPU Protected Mode Test.

...........................

Processor Speed Test

................................

Coprocessor Test

...................................

DMA Controller Test ...............................

Interrupt Controller Test.

............................

Timer Test

........................................

RTC Test

.........................................

CMOS Validity Test

................................

Memory Diagnostics

.....................................

BIOS ROM Test

...................................

Parity Test

........................................

Pattern Test

.......................................

Walking 1’s Test.

...................................

Walking 0’s Test.

...................................

Address Test

.......................................

Refresh Test

.......................................

iii

Hard Disk Diagnostics

...................................

Hard Disk Parameters.

...............................

Disk drive identifier.

............................

Disk drive type

.................................

Interleave factor

...............................

Bad track list

..................................

Start and end cylinder numbers

...................

Start and end head numbers

......................

Hard Disk Format.

..................................

Auto Interleave

....................................

Media Analysis.

....................................

Performance Test

...................................

Seek Test

.........................................

Read/Verify Test

...................................

Check Test Cylinder

................................

Force Bad Tracks

...................................

Hard Disk Error Messages

............................

Floppy Disk Diagnostics

..................................

Diskette Format

....................................

Drive Speed Test

...................................

Random R/W Test

..................................

Sequential R/W Test

................................

Disk Change Line Test

..............................

Floppy Disk Error Messages

...........................

Keyboard Diagnostics

....................................

Controller Test.

....................................

Scan/ASCII Code Test

..............................

Keyboard Clock Line Test

............................

Keyboard Data Line Test.

............................

Video Diagnostics

.......................................

Adapter Test

......................................

Attribute Test

.....................................

80x25 Display Test.

.................................

40x25 Display Test.

.................................

320x200 Graphics Test

..............................

640x200 Graphics Test

..............................

Page Selection Test

.................................

Color Test

.........................................

640x350 Graphics Test

..............................

Video Error Message.

................................

Miscellaneous Diagnostics

................................

Printer Adapter Test

................................

Communication Adapter Test.

........................

Keyboard Scan/ASCII Codes

..............................

Introduction

This booklet describes how to use the diagnostics program,

called DIAG, to test the condition of your computer’s main unit

and peripheral devices, The DIAG program provides tests to

check the following hardware:

System board

Memory

Hard disk drive

Diskette drive

Keyboard

Video adapter board and monitor

Printer and communications ports

After you start the diagnostics program, you can create a

database that records the location of faulty memory chips, if any

exist. This database displays a graphic representing your

computer’s memory board and identifies the faulty chips.

Once you select a test, you need to specify how long to run it.

You use the Run Time Parameters window to specify a certain

length of time to run the test, run it continuously until you

interrupt it, or specify a number of times to run the test.

System Diagnostics 1

Starting the Diagnostics Program

To start the diagnostics program, follow these steps:

Insert the Diagnostics diskette in drive A.

Turn on or reset the computer.

At the MS-DOS@ prompt, type the following and press

Enter:

DIAG

The Diagnostics program displays a title screen.

Press any key to continue.

Creating a Database

You can create a database to record the location of faulty

memory chips that are causing memory errors. To graphically

represent the memory board on the screen, you need to identify

your system’s memory configuration.

In the lower portion of the screen, you see this message:

Press <Esc> to bypass database creation

Press ESC if you do not want to create the database. The DIAG

main menu appears so you can select the tests you want to run.

2 System Diagnostics

If you want to create a database, follow these steps:

Type the name (from 1 to 50 characters) that identifies your

company or the computer and press Enter in response to

this prompt:

vendor's name :

(maximum 50 characters)

For example, type

EPSON

and press

Enter.

Type the computer’s model number (from 1 to 8 characters)

and press Enter in response to this prompt:

model number

(maximum 8 characters)

For example, type

LT-286e

and press

Enter.

DIAG stores this information in a file called DIAGS.CNF.

If a database with this vendor name and model number does

not exist, you see this message:

Database does not exist - press

any key except <Esc> to continue

To create the database, press any key other than ESC.

Now you respond to the screen prompts to update the

configuration. You can accept the default values that DIAG

presents by pressing Enter. When you see the diagram of

the motherboard, press ESC to continue the diagnostics.

If a database with the specified vendor name and model

number exists, you see this message:

Your database already exists -

want to update (Y/N)? N

System Diagnostics

To update the existing database, press Y and Enter. Now

you respond to the screen prompts to update the

configuration.

If you do not want to update the database, press N and

Enter. You see the DIAG main menu.

The DIAG Main Menu Screen

The DIAG main menu screen looks like this:

~~~~~~~~~~

Memoly

:.:-A.

..I.

_....

Hard

Disk Keyboard Video

Miscl.

Processor

speed

test

DMA

Controller

test

Interrupt Controller test

Timer

test

Real

Time

Clock

test

The program’s title, copyright information, and the date and

time appear at the top of the screen.

The DIAG options line shows these categories of tests: System

Board, Memory, Hard Disk, Floppy, Keyboard, Video, and

Miscellaneous.

After you select a category, DIAG provides a submenu of the

available diagnostics tests. When the main menu first displays,

you see the submenu of diagnostics tests for the System Board

category.

4 System Diagnostics

The Run Time Parameters window lets you specify how long

you want the test to run, whether you want DIAG to notify you

of each error as it occurs, and whether to create a log of all

errors that occur during testing.

The Help window shows the keys you use to make menu

selections.

A short message describing each test you highlight displays at

the bottom of the screen.

You use these keys to make menu selections and run diagnostics

tests:

Key

Function

Move to the next window (or device)

Move to the previous window (or device)

1Move to the next test

Move to the previous test

Enter

Start the test

Set the Run Time Parameters

Select or deselect a test

Select all tests

Deselect all tests

Run all

selected tests

system Diagnostics 5

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