HP Pavilion 743 Comment utiliser

Service Handbook

HP 9000 Series 700 Model 743

HP Part No. A2636-90604

Edition E1097

Go to the Table of Contents

Hewlett-Packard Co. 1997

Printing History

First Printing: October 1997

UNIX is a registered trademark in the United States and other countries, licensed exclu-

sively through X/Open Company Limited.

NOTICE

The information contained in this document is subject to change without notice.

HEWLETT-PACKARD MAKES NO WARRANTY OF ANY KIND WITH REGARD

TO THIS MATERIAL INCLUDING BUT NOT LIMITED TO THE IMPLIED WAR-

RANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PUR-

POSE. Hewlett-Packard shall not be liable for errors contained herein or for incidental or

consequential damages in connection with the furnishing, performance or use of this mate-

rial.

Hewlett-Packard assumes no responsibility for the use or reliability of its software on

equipment that is not furnished by Hewlett-Packard.

This document contains proprietary information that is protected by copyright. All rights

reserved. No part of this document may be photocopied, reproduced or translated to

another language without the prior written consent of Hewlett-Packard Company.

RESTRICTED RIGHTS LEGEND. Use, duplication, or disclosure by government is sub-

ject to restrictions as set forth in subdivision (c) (1) (ii) of the Rights in Technical Data and

Computer Software Clause at DFARS 252.227.7013. Hewlett-Packard Co., 3000 Hanover

St., Palo Alto, CA 94304.

10 9 8 7 6 5 4 3 2 1

Safety and Regulatory Statements

iii

Safety and Regulatory Statements

Safety

For safety information see the owner’s guide that came with the system in

which you are installing your Model 743 board computer.

Regulatory Statements

Emissions Regulations

Federal Communications Commission (FCC) This equipment has

been tested and found to comply with the limits for a Class A digital

device, pursuant to part 15 of the FCC Rules and interference causing reg-

ulations of Industry Canada. These limits are designed to provide reason-

able protection against harmful interference in a non-residential

installation. This equipment generates, uses, and can radiate radio fre-

quency energy and, if not installed and used in accordance with the

instructions, may cause harmful interference to radio communications.

However, there is no guarantee that interference will not occur in a partic-

ular installation. If this equipment does cause harmful interference to

radio or television reception (determined by turning the equipment off

and on), you can correct the interference by one or more of the following

measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and the receiver.

• Connect the equipment to an outlet on a circuit different from that to which the

receiver is connected.

Hewlett-Packard’s system certiﬁcation tests were conducted with HP-sup-

ported peripheral devices and HP shielded cables, such as those you

receive with your computer. Changes or modiﬁcations not expressly

approved by Hewlett-Packard could void the user’s authority to operate

the equipment.

Safety and Regulatory Statements

Australia EMC Standards

This equipment has applied for and received approval to display the Aus-

tralian C-Tick mark according to the standards of AS/NZS 2064.1/2:1992

and AS/NZS 3548:1995.

VCCI Class A ITE

Electrostatic Discharge (ESD) Precautions

Electrostatic charges can damage the integrated circuits on printed circuit

boards. To prevent such damage from occurring, observe the following

precautions during board unpacking, installation, and conﬁguration:

• Stand on a static-free mat.

• Wear a static strap to ensure that any accumulated electrostatic charge

is discharged from your body to ground.

• Connect all equipment together, including the static-free mat, static

strap, routing nodes, and peripheral units.

• Keep uninstalled printed circuit boards in their protective antistatic

bags.

• Handle printed circuit boards by their edges, once you have removed

them from their protective antistatic bags.

Electrostatic Discharge (ESD) Precautions

Contents

vii

Preface

Safety and Regulatory Statements iii

Safety iii

Regulatory Statements iii

Emissions Regulations iii

Australia EMC Standards iv

VCCI Class A ITE iv

Electrostatic Discharge (ESD) Precautions v

1 Product Information

Product Description 1-2

Technical Information 1-6

Electrical 1-6

Regulatory Compliances 1-7

Environmental Requirements 1-7

Hardware Support 1-9

Field Repair Philosophy 1-9

Additional Technical Information 1-9

Schematics 1-9

Supported Products 1-10

Accessory Cards 1-11

Typical External Devices 1-12

Cables 1-12

Contents

viii

Keyboard and Mouse 1-13

Repair Services 1-14

2 Functional Description

Overview 2-2

System Board 2-2

CPU Circuit 2-4

Boot ROM Circuit 2-4

System Failure LED 2-5

Power LED 2-5

Graphics Circuit 2-6

Keyboard 2-7

Memory Controller Circuit 2-7

Memory Map 2-8

I/O Controller ASIC 2-10

Built-in Interfaces 2-11

Audio 2-11

HP Parallel 2-13

RS-232 Ports 2-14

AUI LAN 2-16

SCSI 2-17

PS/2 Ports 1 and 0 2-19

VME Controller ASIC 2-20

Graphics Accessory Cards 2-23

RAM Cards 2-24

Interval Timers 2-26

Contents

Watchdog Timer 2-26

Power Distribution 2-27

3 Conﬁguration

Introduction 3-2

Boot Console Handler 3-3

Overview of the Boot Console Handler 3-3

Using the Boot Console Handler 3-4

Boot From a Device Menu 3-7

Path Conﬁguration Menu 3-9

Primary or Alternate Path Menus 3-10

Console Path Menu 3-10

Keyboard Path Menu 3-11

Mode Conﬁguration Menu 3-12

Setting Values in the Mode Conﬁguration Menu 3-13

Mode Conﬁguration Menu Selections 3-14

Boot Search Control 3-14

Console Search Control 3-15

Keyboard Search Control 3-15

Test Conﬁguration 3-15

Control Flags 3-16

Interactive Testing 3-18

Interactive Testing Limitations 3-19

Contents

Accessing Firmware Information 3-21

Hardware Information 3-23

ASIC Hardware Component Information 3-25

Graphics Information 3-26

System Conﬁguration Menu 3-27

Graphics Conﬁguration 3-29

Graphics Information in Menus 3-29

4 Troubleshooting

Introduction to Troubleshooting 4-2

Diagnostic Overview 4-2

ISL Environment 4-3

Boot ROM Selftests 4-4

Hardware Initialization Support 4-5

Go/No-Go Selftest Support 4-5

Failure Indications 4-5

Early Selftest 4-6

Read/Write Memory Test 4-6

Read-Only Memory Test 4-6

Late Selftest 4-6

Extended Selftest 4-6

Firmware Selftest Failures 4-8

Interpreting the Front Panel LEDs 4-8

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