General Electric SUN ULTRA 1 SERVICE MANUAL_SM_408287-051_A OMEGA IV and V Table Schematics

Sun Ultra 1 Series

service manual

PN 408287-051 Revision A

A PART OF THE MARQUETTE UNITY NETWORK

Trademarked names appear throughout this document. Rather than list the names and entities that own the trademarks or insert a trademark symbol with each mention of the trademarked name, the publisher states that it is using the names only for editorial purposes and to the benefit of the trademark owner with no intention of improperly using the trademark.

ACCUSKETCH, AccuVision, APEX, AQUA-KNOT, ARCHIVIST, Autoseq, BABY MAC, CardioServ, CardioSmart, CardioSys, CASE, CD TELEMETRY, CENTRA, CHART GUARD, CINE 35, CORO, COROMETRICS, CRG PLUS, Digistore, Digital DATAQ, E for M, EAGLE, Event-Link, HELLIGE, IMAGE STORE, LASER SXP, MAC, MAC-LAB, MACTRODE, MARQUETTE, MARQUETTE MAC, MARQUETTE UNITY NETWORK, MARS, MAX, MEDITEL, MEI, MEI in the circle logo, MEMOPORT, MEMOPORT C, MINISTORE, MINNOWS, Monarch 8000, MULTI-LINK, MULTISCRIPTOR, MUSE, MUSE CV, Neo-Trak, NEUROSCRIPT, OnlineABG, OXYMONITOR, Pres-R-Cuff, PRESSURE-SCRIBE, QMI, QS, Quantitative Medicine, Quantitative Sentinel, Qwik Connect Spiral, RAMS, RSVP, SAM, SEER, SOLAR, Spectra 400, Spectra-Tel, ST GUARD, TRAM, TRAM-NET, TRAM-RAC, TRAMSCOPE, TRIM KNOB, UNITY logo, UNITY NETWORK, Vari-X, Vari-X Cardiomatic, VariCath, VAS, and Vision Care Filter are trademarks of Marquette Medical Systems, Inc., registered in the United States Patent and Trademark Office.

12SL, 15SL, AccuSpeak, ADVANTAGE, BAM, BODYTRODE, Cardiomatic, CardioSpeak, CardioWindow, CD TELEMETRY®-LAN, CENTRALSCOPE, Corolation, Corometrics Sensor Tip, DASH, EDIC, HI-RES, IMAGE VAULT, IMPACT.wf, INTELLIMOTION, INTER-LEAD, IQA, LIFEWATCH, MARQUETTE MEDICAL SYSTEMS, MARQUETTE® RESPONDER, MENTOR, MicroSmart, MMS, MRT, MUSE CardioWindow, O2 SENSOR, OMRS, Premium, RAC, SILVERTRACE, SMART-PAC, SMARTLOOK, SOLARVIEW, Spectra-Overview, Trimline, UNITY, and Universal are trademarks of Marquette Medical Systems, Inc.

T-2

Sun Ultra 1 Series

408287-051

Revision A

6 March 1998

Sun™ Ultra™1 Series Service Manual

The Network Is the Computer

Sun Microsystems Computer Company

2550 Garcia Avenue Mountain View, CA 94043 USA 415 960-1300 fax 415 969-9131

Part No.: 802-3819-10 Revision A, November 1995

™

 1995 Sun Microsystems, Inc. 2550 Garcia Avenue, Mountain View, California 94043-1 100 U.S.A. All rights reserved. This product or document is protected by copyright and distributed under licenses r estricting its use,

copying, distribution and decompilation. No part of this product or document may be reproduced in any form by any means without prior written authorization of Sun and its licensors, if any .

Portions of this product may be derived from the UNIX

system, licensed from UNIX Systems Laboratories, Inc., a wholly owned subsidiary of Novell, Inc., and from the Berkeley 4.3 BSD system, licensed from the University of California. Third-party software, including font technology in this product, is protected by copyright and licensed from Sun’s Suppliers.

RESTRICTED RIGHTS LEGEND: Use, duplication, or disclosure by the government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in T echnical Data and Computer Software clause at DF ARS 252.227-7013 and FAR 52.227-19. The product described in this manual may be protected by one or more U.S. patents, foreign patents, or pending applications.

TRADEMARKS Sun, Sun Microsystems, the Sun logo, Ultra and Solaris are trademarks or registered trademarks of Sun Micr osystems, Inc. in the United States and other countries. UNIX is a registered trademark in the United States and other countries, exclusively licensed through X/Open Company , Ltd. OPEN LOOK is a r egistered trademark of Novell, Inc. All other product, service, or company names mentioned herein are claimed as trademarks and trade names by their respective companies.

All SP ARC trademarks are trademarks or register ed trademarks of SP ARC International, Inc. in the United States and other countries. SP ARCcenter , SP ARCcluster, SP ARCompiler , SPARCdesign, SP ARC81 1, SP ARCengine, SPARCprinter , SPARCserver , SP ARCstation, SP ARCstorage, SPARCworks, microSP ARC, micr oSP ARC-II, and UltraSPARC

are licensed exclusively to Sun

Microsystems, Inc. Products bearing SP ARC trademarks ar e based upon an architecture developed by Sun Micr osystems, Inc. The OPEN LOOK

and Sun™ Graphical User Interfaces were developed by Sun Microsystems, Inc. for its users and licensees. Sun acknowledges the pioneering efforts of Xerox in researching and developing the concept of visual or graphical user interfaces for the computer industry . Sun holds a non-exclusive license from Xer ox to the Xerox Graphical User Interface, which license also covers Sun’s licensees who implement OPEN LOOK GUI’s and otherwise comply with Sun’s written license agreements.

Please

Recycle

X Window System is a trademark of X Consortium, Inc. THIS PUBLICATION IS PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED,

INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.

THIS PUBLICATION COULD INCLUDE TECHNICAL INACCURACIES OR TYPOGRAPHICAL ERRORS. CHANGES ARE PERIODICALLY ADDED TO THE INFORMATION HEREIN, THESE CHANGES WILL BE INCORPORATED IN NEW EDITIONS OF THE PUBLICATION. SUN MICROSYSTEMS, INC. MAY MAKE IMPROVEMENTS AND/OR CHANGES IN THE PRODUCT(S) AND/OR THE PROGRAMS(S) DESCRIBED IN THIS PUBLICATION AT ANY TIME.

Copyright 1995 Sun Microsystems, Inc., 2550 Garcia A venue, Mountain V iew, Californie 94043-1 100 U.S.A. T ous droits réservés. Ce produit ou document est pr otégé par un copyright et distribué avec des licences qui en restreignent

l’utilisation, la copie et la décompilation. Aucune partie de ce produit ou de sa documentation associée ne peut être repr oduits sous aucune forme, par quelque moyen que ce soit sans l’autorisation préalable et écrite de Sun et de ses bailleurs de licence, s’il y en a.

Des parties de ce produit pourront être derivées du système UNIX

et du système Berkeley 4.3 BSD licencié par l’Université de Californie. UNIX est une marque enregistrée aux Etats-Unis et dans d’autres pays, et licenciée exclusivement par X/Open Company Ltd. Le logiciel détenu par des tiers, et qui comprend la technologie relative aux polices de caractères, est pr otégé par un copyright et licencié par des fournisseurs de Sun.

Sun, Sun Microsystems, le logo Sun, Ultra et Solaris sont des marques déposées ou enregistrées par Sun Micr osystems, Inc. aux Etats-Unis et dans certains d’autres pays. T outes les marques SPARC, utilisées sous license, sont des marques déposées ou enregistrées de SP ARC International, Inc. aux Etats-Unis et dans d’autres pays. Les pr oduits portant les marques SP ARC sont basés sur une architecture développée par Sun Microsystems, Inc.

Les utilisateurs d’interfaces graphiques OPEN LOOK

et Sun™ ont été développés par Sun Microsystems, Inc. pour ses utilisateurs et licenciés. Sun reconnaît les efforts de pionniers de Xerox pour la recher che et le développement du concept des interfaces d’utilisation visuelle ou graphique pour l’industrie de l’informatique. Sun détient une licence non exclusive de Xerox sur l’interface d’utilisation graphique, cette licence couvrant aussi les licenciés de Sun qui mettent en place OPEN LOOK GUIs et qui en outre se conforment aux licences écrites de Sun.

Le système X Window est un pr oduit du X Consortium, Inc. CETTE PUBLICA TION EST FOURNIE "EN L ’ET A T" SANS GARANTIE D’AUCUNE SOR TE, NI EXPRESSE NI IMPLICITE, Y

COMPRIS, ET SANS QUE CETTE LISTE NE SOIT LIMIT A TIVE, DES GARANTIES CONCERNANT LA VALEUR MARCHANDE, L’APTITUDE DES PRODUITS A REPONDRE A UNE UTILISATION P AR TICULIERE OU LE F AIT QU’ILS NE SOIENT P AS CONTREF AISANTS DE PRODUITS DE TIERS.

Revision History

Revision Dash Date Comments

802-3819 -05 August 1995 Chapter 3 and 4 are to be completed on the next revision.

Some of the illustrations need to be modiﬁed. The comments for the artist are placed next to them. The board fan is being redesigned at present.

-10 November 1995 FCS

Sun Ultra 1 Series Service Manual—November 1995

Contents

Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii

Part 1 —System Information

1. Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.1 System Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.2 System Illustrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Part 2 —Troubleshooting

2. SunVTS Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

3. Power-On Self-Test (POST). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.1 How to Start POST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.2 Max and Min Levels of POST . . . . . . . . . . . . . . . . . . . . . . . 3-2

3.3 POST Progress and Error Reporting . . . . . . . . . . . . . . . . . 3-3

3.4 Additional Keyboard Control Commands . . . . . . . . . . . . 3-4

3.5 System and Keyboard LEDs . . . . . . . . . . . . . . . . . . . . . . . . 3-4

3.6 Serial Port A POST Output . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

4. Troubleshooting Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

vii

4.1 Power On Fails or No Video . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4.2 Power Supply Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

4.3 DSIMM Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

4.4 Hard Disk or CD-ROM Drive . . . . . . . . . . . . . . . . . . . . . . . 4-7

4.5 OpenBoot On-Board Diagnostics . . . . . . . . . . . . . . . . . . . . 4-8

4.6 Selected On-Board Diagnostic Tests. . . . . . . . . . . . . . . . . . 4-12

4.7 The probe-scsi and probe-scsi-all test . . . . . . . . . . . . . . . . 4-13

4.8 System Board Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Part 3 —Preparing for Service

5. Safety and Tool Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.1 Safety Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.2 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5.4 Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

6. Power On and Off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.1 Powering Off the System. . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.2 Powering On the System . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Part 4 —Subassembly Removal and Replacement

7. Internal Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.1 Removing the Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.2 Attaching the Wrist Strap . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.3 Replacing the Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

8. Major Subassemblies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

8.1 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

viii Sun Ultra 1 Series Service Manual—November 1995

8.2 Fan Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

8.3 Speaker. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8

8.4 Diskette Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12

8.5 SCSI Cable/Backplane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16

8.6 Peripheral Power Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-20

8.7 Speaker/LED Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-25

9. Storage Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

9.1 Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

9.2 CD-ROM/Tape Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6

9.3 Diskette Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11

Part 5 —System Board

10. System Board and Component Replacement. . . . . . . . . . . . . . 10-1

10.1 System Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

10.2 NVRAM/TOD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10

10.3 SBus Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-12

10.4 DSIMM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-18

10.5 System Board Fan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-23

Part 6 —Illustrated Parts Breakdown

11. Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

11.1 List of Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

Part 7 —Appendixes, Glossary, and Index

A. Product Speciﬁcations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

B. Signal Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

C. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Contents ix

Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Glossary-1

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Index-1

x Sun Ultra 1 Series Service Manual—November 1995

Figures

Figure 1-1 Front View of the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Figure 1-2 Rear View of the System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Figure 1-3 Top View of the System with the Cover Removed. . . . . . . . . . 1-3

Figure 3-1 Power LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Figure 3-2 Arrangement of the Sun Type 5-c Keyboard LEDs . . . . . . . . . 3-5

Figure 4-1 Power Supply Connector J2601. . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Figure 4-2 Power Supply Connector J2603. . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Figure 6-1 Rear View of the System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Figure 7-1 Location of Lock Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Figure 7-2 Removing the Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Figure 7-3 Attaching the Wrist Strap. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Figure 7-4 Replacing the Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

Figure 8-1 Removing the Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

Figure 8-2 Replacing the Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

Figure 8-3 Securing and Connecting the Power Supply. . . . . . . . . . . . . . . 8-4

Figure 8-4 Fan and Power Cable Connection. . . . . . . . . . . . . . . . . . . . . . . . 8-5

Figure 8-5 Fan Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6

Figure 8-6 Replacing the Fan Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

Figure 8-7 Fan and Speaker Cable Connection . . . . . . . . . . . . . . . . . . . . . . 8-8

Figure 8-8 Removing the Fan/Speaker Bracket from the Chassis . . . . . . 8-9

Figure 8-9 Removing the Speaker from the Fan/Speaker Bracket . . . . . . 8-10

Figure 8-10 Replacing the Fan/Speaker Bracket into the Chassis. . . . . . . . 8-11

Figure 8-11 Removing the Drive Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12

Figure 8-12 Diskette Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13

Figure 8-13 Replacing the Drive Bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15

Figure 8-14 SCSI/Backplane Cable Connection. . . . . . . . . . . . . . . . . . . . . . . 8-17

Figure 8-15 Removing the SCSI Backplane. . . . . . . . . . . . . . . . . . . . . . . . . . . 8-18

Figure 8-16 Replacing the SCSI Backplane. . . . . . . . . . . . . . . . . . . . . . . . . . . 8-19

Figure 8-17 Removing the Drive Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-20

Figure 8-18 Removing the Peripheral Power Cable . . . . . . . . . . . . . . . . . . . 8-21

Figure 8-19 Peripheral Power Cable Routing on the SCSI Backplane . . . . 8-22

Figure 8-20 Replacing the Peripheral Power Cable. . . . . . . . . . . . . . . . . . . . 8-23

Figure 8-21 Replacing the Drive Bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-24

Figure 8-22 Removing the Drive Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-25

Figure 8-23 Placing the Bracket on Top of the Disk Drive . . . . . . . . . . . . . . 8-26

Figure 8-24 Removing/Replacing the Speaker /LED Cable from the Chassis 8-

Figure 8-25 Speaker Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-28

Figure 8-26 Speaker Connector on the System Board. . . . . . . . . . . . . . . . . . 8-29

Figure 8-27 Replacing the Bracket to the Chassis . . . . . . . . . . . . . . . . . . . . . 8-31

Figure 9-1 EMI Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

Figure 9-2 Removing the Disk Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

xii Sun Ultra 1 Series Service Manual—November 1995

Figure 9-3 Replacing the Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

Figure 9-4 Replacing the EMI Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5

Figure 9-5 Drive Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6

Figure 9-6 Placing the Drive Bracket on Top of the Disk Drive . . . . . . . . 9-7

Figure 9-7 Positioning the CD-ROM/Tape Drive . . . . . . . . . . . . . . . . . . . . 9-8

Figure 9-8 Connecting the Cables from the CD-ROM/Tape and Diskette

Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-9

Figure 9-9 Positioning the Drive Bracket in the Chassis. . . . . . . . . . . . . . . 9-10

Figure 9-10 Positioning the Diskette Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11

Figure 9-11 Positioning the Diskette Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . 9-12

Figure 10-1 Disconnecting Connectors from the System Board . . . . . . . . . 10-3

Figure 10-2 Speaker/LED Connector on the System Board. . . . . . . . . . . . . 10-4

Figure 10-3 Captive Screws on the Back Panel . . . . . . . . . . . . . . . . . . . . . . . 10-4

Figure 10-4 Sliding the System Board Out of the Chassis . . . . . . . . . . . . . . 10-5

Figure 10-5 Removing SBus Filler Panels from the Back Panel. . . . . . . . . . 10-6

Figure 10-6 Sliding the System Board Into The Chassis. . . . . . . . . . . . . . . . 10-7

Figure 10-7 Location of the Serial Port Jumpers . . . . . . . . . . . . . . . . . . . . . . 10-8

Figure 10-8 Identifying Jumper Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-9

Figure 10-9 NVRAM/TOD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10

Figure 10-10 SBus Slots Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-12

Figure 10-11 Removing an SBus Card from Slot 0 or 1. . . . . . . . . . . . . . . . . . 10-13

Figure 10-12 Removing an SBus Card from Slot 2. . . . . . . . . . . . . . . . . . . . . . 10-14

Figure 10-13 Removing the SBus Card Extractor. . . . . . . . . . . . . . . . . . . . . . . 10-15

Figure 10-14 Replacing the SBus Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-16

Figure 10-15 Lock in the SBus Card Retainers, SBus Slots 0 or 1 . . . . . . . . . 10-17

Figure 10-16 Lock in the SBus Card Retainer, SBus Slot 2 . . . . . . . . . . . . . . . 10-18

Figures xiii

Figure 10-17 Removing a DSIMM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20

Figure 10-18 DSIMM Ejection Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-21

Figure 10-19 Replacing a DSIMM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-22

Figure 10-20 Plastic Cover for the Board Fan. . . . . . . . . . . . . . . . . . . . . . . . . . 10-23

Figure 10-21 Board Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-24

Figure B-1 Keyboard/Mouse Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Figure B-2 Serial Ports A and B Connector . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

Figure B-3 AUI Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

Figure B-4 TPE Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

Figure B-5 SCSI Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5

Figure B-6 Audio Ports Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-7

Figure B-7 Parallel Port Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8

Figure C-1 Sun Ultra 1 Series System Block Diagram. . . . . . . . . . . . . . . . . C-2

Figure C-2 Sun Ultra 1 Series System Board Block Diagram . . . . . . . . . . . C-3

xiv Sun Ultra 1 Series Service Manual—November 1995

Tables

Table P-1 Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii

Table P-2 Typographic Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii

Table P-3 Shell Prompts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix

Table 3-1 The Keyboard LED Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Table 4-1 J2601 Pin Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Table 4-2 J2603 Pin Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Table 4-3 DSIMM Physical Memory Address . . . . . . . . . . . . . . . . . . . . . . 4-6

Table 4-4 Internal Drives Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Table 4-5 Selected On-Board Diagnostics Tests . . . . . . . . . . . . . . . . . . . . . 4-12

Table 8-1 Peripheral Power Cable Connection. . . . . . . . . . . . . . . . . . . . . . 8-21

Table 10-1 Serial Port Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-9

Table 10-2 Bank and Socket Locations for DSIMMs . . . . . . . . . . . . . . . . . . 10-19

Table 11-1 List of Replacements Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2

Table A-1 Sun Ultra 1 Series Workstation Physical Specifications. . . . . . A-1

Table A-2 AC/DC Power Supply Specifications . . . . . . . . . . . . . . . . . . . . A-2

Table A-3 Environmental Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Table B-1 Keyboard/Mouse Pin Assignments . . . . . . . . . . . . . . . . . . . . . . B-1

Table B-2 Serial Ports Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

Table 11-2 AUI Connector Pinouts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

Table B-3 TPE Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

Table B-4 SCSI Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5

Table B-5 Audio Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-7

Table 11-3 Parallel Connector Pinouts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8

xvi Sun Ultra 1 Series Service Manual—November 1995

Preface

The Sun Ultra 1 Series Service Manual tells how to remove and replace system parts. This document applies to both Sun Ultra 1 Model 140 and Sun Ultra 1 Model 170. Chapter 11 lists the replacement parts. This document also tells how to troubleshoot system problems by running SunVTSprograms and system resident diagnostics.

This document is written for Sun ﬁeld service representatives, original equipment manufacturers (OEMs), value added resellers (VARs), and other customers with self-maintenance contracts.

Related Documentation

The following documents provide additional information for servicing the Sun Ultra 1 Series system. These documents are also available on-line, on the

Sun Ultra 1 Model 140 Hardware AnswerBookon the Solaris on Sun Hardware AnswerBookset.

Table P-1 Related Documents

Application Title Part Number

Installation Sun Conﬁguration Sun Conﬁguraton Sun



Ultra 1 Model 140 Installation Guide 802-3825



Ultra 1 Model 140 Reference Manual 802-3816



Ultra 1 Internal Storage Device User’s

Guide

802-3818

xvii

Table P-1 Related Documents

Application Title Part Number

Diagnostics SunVTS User’s Guide 801-7271



Diagnostics SunVTS Diagnostics SunVTS

Test Reference Manual 802-1448



Quick Reference Card 802-3622

T ypographic Conventions

The following table describes the typographic changes used in this book.

Table P-2 Typographic Conventions

Typeface or Symbol Meaning Example

AaBbCc123 The names of commands,

ﬁles, and directories; on-screen computer output

AaBbCc123 What you type, contrasted

with on-screen computer output

AaBbCc123 Command-line placeholder:

replace with a real name or value

AaBbCc123 Book titles, new words or

terms, or words to be emphasized

Edit your .login ﬁle. Use ls -a to list all ﬁles.

machine_name% You have mail.

machine_name% su Password:

To delete a ﬁle, type rm ﬁlename.

Read Chapter 6 in the User ’s Guide. These are called class options. You must be root to do this.

xviii Sun Ultra 1 Series Service Manual—November 1995

Shell Prompts in Command Examples

The following table shows the default system prompt and superuser prompt for the C shell, Bourne shell, and Korn shell.

Table P-3 Shell Prompts

Shell Prompt

C shell machine_name% C shell superuser machine_name# Bourne shell and Korn shell $

Cautions and Warnings

Bourne shell and Korn shell superuser

Warning – This equipment contains lethal voltage. Accidental contact can result in serious injury or death.

Caution – Improper handling by unqualiﬁed personnel can cause serious damage to this equipment. Unqualiﬁed personnel who tamper with this equipment may be held liable for any resultant damage to the equipment.

Individuals who remove any outer or open covers to access this equipment must observe all safety precautions and ensure compliance with skill level requirements, certiﬁcation, and all applicable local and national laws.

Procedures contained in this document must be performed by qualiﬁed service-trained maintenance providers. Only people who have been trained by the Sun Microsystems® training facilities (or by Sun Microsystems afﬁliates) and have been certiﬁed as required by local and national laws are considered qualiﬁed.

Caution – The surface of the UltraSPARCchip may be hot and cause personal injury if touched. Avoid contact.

Preface xix

Note – Before you begin, carefully read each of the procedures in this document. If you have not performed similar operations on comparable equipment, do not attempt to perform these procedures.

Ordering Sun Documents

The SunDocs Order Desk is a distribution center for Sun Microsystems technical documentation. It accepts all major credit cards and company purchase orders. You can order documentation in the following ways:

In the U.S.A. Outside the U.S.A.

Call 1-800-247-0250 Call 1-801-342-3450 Fax 1-801-373-6798 Fax 1-801-373-6798

World Wide Web: http://www.sun.com/sundocs/catalog.html

Sun Welcomes Your Comments

Please use the Reader Comment Card that accompanies this document. We are interested in improving our documentation and welcome your comments and suggestions.

You can also email or fax your comments to us. Please include the part number of your document in the subject line of your email or fax message.

• Email: smcc-docs@sun.com

• Fax: SMCC Document Feedback

1-415-786-6443

xx Sun Ultra 1 Series Service Manual—November 1995

Part 1 — System Information

Product Description page 1-1

1.1 System Unit

Product Description

The major components of the Sun Ultra 1 Series workstation are:

• CPU system

• Monitor

• Sun Type-5c keyboard

• Compact 1 mechanical mouse

The following ﬁgures illustrate the CPU system:

• Figure 1-1 shows the front view of the system.

• Figure 1-2 shows the rear view of the system.

• Figure 1-3 shows the top view of the system with the cover removed.

1-1

1.2 System Illustrations

Figure 1-1 Front View of the System

Power on/ standby switch

Power outlet (Female socket)

LED

SBus slot 2

Serial port A (RS-423/RS-232)

Serial port B (RS-423/RS-232)

Keyboard/ Power inlet (Male plug)

1-2 Sun Ultra 1 Series Service Manual—November 1995

Parallel connector

mouse

connector

Figure 1-2 Rear View of the System

AUI connector

TPE connector

SBus slot 1

SBus slot 0

SCSI connector

Audio connectors

Chassis

Cover

SBus card

DSIMMs

Disk drive

Fan

Figure 1-3 Top View of the System with the Cover Removed

Speaker

System board

Diskette Drive

CD-ROM or tape drive

Power supply

Product Description 1-3

1-4 Sun Ultra 1 Series Service Manual—November 1995

Part 2 — T roubleshooting

SunVTS Overview page 2-1 Power-On Self-Test (POST) page 3-1 Troubleshooting Procedures page 4-1

SunVTS Overview

You can use SunVTS, the Sun Validation and Test Suite, to run individual tests for verifying the conﬁguration and functionality of most hardware controllers and devices.

These are the main features of the SunVTS environment:

• SunVTS kernel (

The SunVTS kernel controls all aspects of the testing. It stays in the background and is used when needed. Upon starting, it probes the hardware conﬁguration of the system tested, and waits for instructions from the user interface. During testing, it coordinates the running of individual tests, and manages the messages sent by these tests.

• SunVTS OPEN LOOK user interface (

This interface is designed to run on top of OpenWindows. Through the numerous buttons and windows, users can set options, select tests, read log ﬁles, and start or stop testing sessions.

• SunVTS TTY user interface (

For a Sun system that does not have a monitor, SunVTS has a TTY interface that can be used on a dumb terminal.

• Command line and script interface (

Both

vtstalk

receive messages from the SunVTS kernel without running a user interface. The SunVTS kernel will send any response to the standard input.

vtsk

and

)

vts_cmd

vtsui

vtstty

allow users to give individual commands and

)

vtstalk

)

and

vts_cmd

)

2-1

• Running individual tests from a command line

Each individual hardware test can be run from a UNIX command line. It is useful to run a single test if you are validating a piece of hardware.

The following documents provide information about SunVTS. They are available on the Solaris on Sun Hardware AnswerBook. This AnswerBook is provided on the SMCC Updates CD for the Solaris release you are running.

• Sun VTS User ’s Guide (801-7271)

This document describes the SunVTS environment, including how to start and control the various user interfaces. SunVTS features are described in this document.

• SunVTS Test Reference Manual (802-1448)

This document contains descriptions of each test SunVTS runs in the SunVTS environment. Each test description describes the various test options and gives command line arguments.

• SunVTS Quick Reference Card (802-3622)

This card gives an overview of the main features of the SunVTS OPEN LOOK interface.

2-2 Sun Ultra 1 Series Service Manual—November 1995

Power-On Self-T est (POST)

The Power On Self Test (POST) diagnostics reside in the system's OpenBoot PROM located on the system board. These diagnostics are useful in determining if a portion of the system has failed and should be replaced. Under normal operating conditions, POST does not run automatically when the system is powered on.

How to Start POST page 3-1 Max and Min Levels of POST page 3-2 POST Progress and Error Reporting page 3-3 Additional Keyboard Control Commands page 3-4 System and Keyboard LEDs page 3-4 Serial Port A POST Output page 3-6

3.1 How to Start POST

POST can be started in two ways. Before powering up the system, press and hold the Stop and D keys on the keyboard. With these keys pressed, turn the system on by pressing the keyboard power on key, or press the power on switch at the rear of the system. This causes the system to start running the POST diagnostics. While POST is running, the Caps Lock key on the keyboard should ﬂash on and off.

3-1

The second way to start POST is by setting the diag-switch? NVRAM variable to true and then power cycling the system. To set the diag- switch? variable to true, type setenv diag-switch? true at the system ok prompt.

ok setenv diag-switch? true

Turn the power off, wait a few seconds, and then press the power on switch. This action causes the system to start running the POST diagnostics. While POST is running, you should see the Caps Lock key on the keyboard ﬂashing on and off.

When you have ﬁnished testing the system using POST, set the

diag-switch? variable back to false (the system's default setting).

ok setenv diag-switch? false

3.2 Max and Min Levels of POST

Two levels of POST are available in the system: max (maximum level) and min (minimum level). The system runs the selected level of POST based on the setting of the NVRAM variable called diag-level.

The default setting for diag-level is max. In this mode, POST takes about one minute to run and will send progress and error messages to the system serial port A. For an example of max POST output on serial port A, see Section 3.6.1, “Diag-level NVRAM Variable is Set to Max.”

When the diag-level variable is set to min, POST takes about 30 seconds to run and only an abbreviated set of messages and error information are sent to serial port A. For an example of min POST output on serial port A, see Section 3.6.2, “Diag-level NVRAM Variable is Set to Min.”

To set the diag-level variable to min, at the system's ok prompt type:

ok setenv diag-level min

3-2 Sun Ultra 1 Series Service Manual—November 1995

To return to the default setting:

ok setenv diag-level max

To observe POST messages on serial port A, you must connect a terminal to port A or set up a tip connection to another workstation. For information about setting up tip connections, refer to the Solaris software reference manuals.

3.3 POST Progress and Error Reporting

While POST is running, observe the Caps Lock key on the system keyboard. It should ﬂash on and off to indicate that tests are running. Additional POST progress indication is visible when a terminal or tip line is connected to serial port A.

If an error occurs during POST, the Caps Lock key will stop ﬂashing and an error code will be displayed using the lights on the keyboard's Caps Lock, Compose, Scroll Lock, and Num Lock keys.

Note – The error code may only be visible for a few seconds, so it is important to observe the keyboard lights closely while POST is running.

If an error code is present on the keyboard, compare the pattern to Table 3-1 for the meaning of the failure. The failure code will indicate a part of the system hardware that was tested by POST to be defective or missing.

In most cases, POST will also attempt to send a failure message to the system monitor. In this case, a message such as this will be displayed:

Power On Self Test Failed. Cause: SIMM U0701 or System Board ok

The system will not automatically boot if a POST error occurs. It will halt at the ok prompt to alert the user of the failure.

Power-On Self-T est (POST) 3-3

3.4 Additional Keyboard Control Commands

• Stop Key

If the diag-switch? variable is set to true but you want to bypass POST when the system is powered on, press and hold the Stop key on the keyboard and turn on the system power. This causes POST to be bypassed.

• Stop and N Keys

If you want to return the system's NVRAM parameters to their original default settings, press and hold the Stop and N keys before powering on the system. Continue to hold the Stop and N keys until the system banner appears on the monitor.

3.5 System and Keyboard LEDs

The power LED at the front of the chassis remains lit when the system is operating normally. Figure 3-1 shows the location of the power LED.

LED

Figure 3-1 Power LED

This section describes the keyboard light emitting diode (LED) patterns as a result of POST and their meaning. While POST is running and making progress, the Caps Lock key LED blinks while the rest of the LEDs are off. If POST ﬁnds an error, a pattern is encoded in the LEDs to indicate the defective part. If POST completes with no errors, all LEDs will be turned off before returning to the OpenBoot PROM(OBP).

Figure 3-2 shows the location of the LED keys on the Sun type 5-c keyboard. Table 3-1 lists the meaning of the LED keys.

3-4 Sun Ultra 1 Series Service Manual—November 1995

Scroll Lock

Caps Lock

Figure 3-2 Arrangement of the Sun Type 5-c Keyboard LEDs

Table 3-1 The Keyboard LED Patterns

Caps Lock Compose Scroll Lock Num Lock Bit Value Meaning of LED Pattern

Blink Off Off Off x000 POST in progress Off Off Off Off 0000 POST successful completion Off Off Off On 0001 DSIMM in slot U 0601 fail Off Off On Off 0010 DSIMM in slot U 0701 fail

Num Lock

Compose

Off Off On On 0011 DSIMM in slot U 0602 fail Off On Off Off 0100 DSIMM in slot U 0702 fail Off On Off On 0101 DSIMM in slot U 0603 fail Off On On Off 0110 DSIMM in slot U 0703 fail Off On On On 0111 DSIMM in slot U 0604 fail On Off Off Off 1000 DSIMM in slot U 0704 fail On Off Off On 1001 System board fail On Off On Off 1010 No memory found On Off On On 1011 Reserved On On Off Off 1100 Reserved

Power-On Self-T est (POST) 3-5

Table 3-1 The Keyboard LED Patterns

Caps Lock Compose Scroll Lock Num Lock Bit Value Meaning of LED Pattern

On On Off On 1101 Reserved On On On Off 1110 Reserved On On On On 1111 Reserved

3.6 Serial Port A POST Output

You can observe POST progress if you connect a terminal (or tip line) to the serial port A on the Sun Ultra 1 Series system.

3.6.1 Diag-level NVRAM Variable is Set to Max

Following is an example of serial port A POST output when the diag-level NVRAM variable is set to max.

3-6 Sun Ultra 1 Series Service Manual—November 1995

Hardware Power ON Button Power ON Button Power ON

@(#) Sun Ultra 1 SBus 3.0 Version 0 created 1995/09/19 13:20 Probing keyboard Done %o0 = 0000.0000.0000.4001

Executing Power On SelfTest

RESET SC Control=00000000 > @(#)Sun Ultra 1 SBus POST 2.0.4 9/18/1995 03:59 PM >Date: 09/20 1995 21:14:24 >Spitfire Version 2.2 > SC id is 33403000 (UPA Number 3) >NVRAM Walking 0 and 1 Test >Probe, Test and Initialize Ecache > ECache RAM Size = 00080000 > ECache TAG Size = 00002000 >Running at Frequency 143 MHZ >Setting MC_Control1 to 0000026a >Setting MC_Control0 to 80000f28 (4,0) > SIMM Present Field 00000500 >SIMM Pair Base Addr Low Size Hi Size Pair Status > 0 00000000.00000000 01000000 01000000 00 > 2 00000000.20000000 02000000 02000000 00 >Running at Frequency 143 MHZ >Setting MC_Control1 to 0000026a >Setting MC_Control0 to 80000551 (2,0)>UPA Cacheable Data and Check bit Bits >Stack Memory Test >SelfTest Initializing >EPROM Path Test > PROM Datapath Test >PROM Datapath Test PASSED >FPU Register Test > FSR Read/Write Test >FSR Read/Write Test PASSED >NVRAM Test >MMU Enable Test

Power-On Self-T est (POST) 3-7

> DMMU Registers Access Test >DMMU Registers Access Test PASSED > DMMU TLB DATA RAM Access Test >DMMU TLB DATA RAM Access Test PASSED > DMMU TLB TAGS Access Test >DMMU TLB TAGS Access Test PASSED > IMMU Registers Access Test >IMMU Registers Access Test PASSED > IMMU TLB DATA RAM Access Test >IMMU TLB DATA RAM Access Test PASSED > IMMU TLB TAGS Access Test >IMMU TLB TAGS Access Test PASSED > DMMU Init >DMMU Init Test PASSED > IMMU Init >IMMU Init Test PASSED > I/D MMU TLB Load and Initialize >I/D MMU TLB Load and Initialize Test PASSED >Serial Ports Test > Serial Port Register Test >Serial Port Register Test PASSED > Serial Ports Test >Serial Ports Test PASSED >Ecache Test >Basic CPU Test > Instruction Cache Tag RAM Test >Instruction Cache Tag RAM Test PASSED > Instruction Cache Instruction RAM Test >Instruction Cache Instruction RAM Test PASSED > Instruction Cache Next Field RAM Test >Instruction Cache Next Field RAM Test PASSED > Instruction Cache Pre-decode RAM Test >Instruction Cache Pre-decode RAM Test PASSED > Data Cache RAM Test >Data Cache RAM Test PASSED > Data Cache Tags Test >Data Cache Tags Test PASSED >Memory Test > Memory Control Register Init >Running at Frequency 143 MHZ >Setting MC_Control1 to 0000026a >Setting MC_Control0 to 80000551 (2,0)

3-8 Sun Ultra 1 Series Service Manual—November 1995

>Memory Control Register Init Test PASSED > Memory Clear Test >Memory Clear Test PASSED > Memory RAM (blk) Test >Memory RAM (blk) Test PASSED > Memory Address Line Test > Writing SIMM Pair 0 base address 00000000.00020000 > Writing SIMM Pair 2 base address 00000000.20000000 > Reading SIMM Pair 0 base address 00000000.00020000 > Reading SIMM Pair 2 base address 00000000.20000000 >Memory Address Line Test PASSED > Memory Stress Test >Memory Stress Test PASSED >FPU Functional Test > Floating Single Move Test >Floating Single Move Test PASSED > FPU Basic Operation Test >FPU Basic Operation Test PASSED >System Controller Test > SC Initialization > SC id is 33403000 (UPA Number 3) >SC Initialization Test PASSED >Caches and Coherency Test > Dcache Init >Dcache Init Test PASSED > Dcache Enable Test >Dcache Enable Test PASSED > Dcache Functionality Test >Dcache Functionality Test PASSED >SysIO Registers Test > SysIO Regsiter Initialization >SysIO Regsiter Initialization Test PASSED > IOMMU Registers and RAM Test >IOMMU Registers and RAM Test PASSED > Streaming Buffer Registers and RAM Test >Streaming Buffer Registers and RAM Test PASSED > SBus Control and Config Registers Test >SBus Control and Config Registers Test PASSED > SysIO RAM Initialization >SysIO RAM Initialization Test PASSED >CPU Functional Test > CPU Softint Registers and Interrupts Test

Power-On Self-T est (POST) 3-9

>CPU Softint Registers and Interrupts Test PASSED > CPU Tick and Tick Compare Registers Test >CPU Tick and Tick Compare Registers Test PASSED > CPU Interrupt Registers and Dispatch Test >WARNING Test skipped, no alternate CPU >CPU Interrupt Registers and Dispatch Test PASSED > CPU Dispatch Control Register Test >CPU Dispatch Control Register Test PASSED >SysIO Functional Test > I/D MMU TLB Load and Initialize Test >I/D MMU TLB Load and Initialize Test PASSED > Clear Interrupt Map and State Registers >Clear Interrupt Map and State Registers Test PASSED > SysIO Interrupts Test >SysIO Interrupts Test PASSED > SysIO Timers/Counters Test >SysIO Timers/Counters Test PASSED > IOMMU Virtual Address TLB Tag Compare Test >IOMMU Virtual Address TLB Tag Compare Test PASSED > Streaming Buffer Flush Test >Streaming Buffer Flush Test PASSED > DMA Merge Buffer Test >DMA Merge Buffer Test PASSED >APC Test > APC Registers Tests Test >APC Registers Tests Test PASSED > APC DVMA Test >APC DVMA Test PASSED >I/D MMU Functional Test > I/D MMU TLB Load and Initialize Test >I/D MMU TLB Load and Initialize Test PASSED > Access Priviledged Data Page Test >Access Priviledged Data Page Test PASSED > Write to Protected Data Page Test >Write to Protected Data Page Test PASSED > Read/Write to Invalid Data Page Test >Read/Write to Invalid Data Page Test PASSED > Execute from Invalid Instr. Page Test >Execute from Invalid Instr. Page Test PASSED >Graphic Instructions Test >Data Cache Test > Dcache Init

3-10 Sun Ultra 1 Series Service Manual—November 1995

>Dcache Init Test PASSED > Dcache 256 Bytes Write then load Test >Dcache 256 Bytes Write then load Test PASSED > Dcache Enable Test >Dcache Enable Test PASSED >Instruction Cache Test > Icache Init >Icache Init Test PASSED > Icache Quick Test >Icache Quick Test PASSED >Forcing ECC Faults Test > ECC CE Pattern Test >ECC CE Pattern Test PASSED > ECC CE Check bit Test >ECC CE Check bit Test PASSED > ECC UE Pattern Test >ECC UE Pattern Test PASSED > ECC UE Check bit Test >ECC UE Check bit Test PASSED >Ecache Stress Test > Ecache Stress Test >Ecache Stress Test PASSED >Macio Test > MACIO Registers/RAM/FIFO Test >MACIO Registers/RAM/FIFO Test PASSED > Ethernet Registers Test >Ethernet Registers Test PASSED > Parallel Port Registers Test >Parallel Port Registers Test PASSED > MACIO SCSI DVMA Test0>MACIO SCSI DVMA Test PASSED >POST PASSED. Remaining loops 0.

Power On Selftest Completed Status = 0000.0000.0000.0000 ffff.ffff.f006.d268 0e66.0000.0180.1d0d

Software Power ON

@(#) Sun Ultra 1 SBus 3.0 Version 0 created 1995/09/19 13:20 Clearing E$ Tags Done Clearing I/D TLBs Done

Power-On Self-T est (POST) 3-11

Probing Memory Done MEM BASE = 0000.0000.2000.0000 MEM SIZE = 0000.0000.0400.0000 MMUs ON Copy Done PC = 0000.01ff.f000.1a3c PC = 0000.0000.0000.1a80 Decompressing into Memory Done Size = 0000.0000.0006.84a0 ttya initialized SC Control: EWP:0 IAP:0 FATAL:0 WAKEUP:0 BXIR:0 BPOR:0 SXIR:0 SPOR:1 POR:0 Probing Memory Bank #0 16 + 16 : 32 Megabytes Probing Memory Bank #1 0 + 0 : 0 Megabytes Probing Memory Bank #2 32 + 32 : 64 Megabytes Probing Memory Bank #3 0 + 0 : 0 Megabytes Probing /sbus@1f,0 at 0,0 Nothing there Probing /sbus@1f,0 at 1,0 Nothing there Probing /sbus@1f,0 at 2,0 cgsix

3.6.2 Diag-level NVRAM Variable is Set to Min

If you set the diag-level NVRAM parameter to min, POST runs an abbreviated set of tests. This mode takes approximately 30 seconds to complete. Following is an example of serial port A output when POST runs in this mode.

3-12 Sun Ultra 1 Series Service Manual—November 1995

Hardware Power ON Button Power ON Button Power ON

@(#) Sun Ultra 1 SBus 3.0 Version 0 created 1995/09/19 13:20 Probing keyboard Done %o0 = 0000.0000.0000.2001

Executing Power On SelfTest

Power On Selftest Completed Status = 0000.0000.0000.0000 ffff.ffff.f006.d268 0e66.0000.0180.1d0d

Software Power ON

@(#) Sun Ultra 1 SBus 3.0 Version 0 created 1995/09/19 13:20 Clearing E$ Tags Done Clearing I/D TLBs Done Probing Memory Done MEM BASE = 0000.0000.2000.0000 MEM SIZE = 0000.0000.0400.0000 MMUs ON Copy Done PC = 0000.01ff.f000.1a3c PC = 0000.0000.0000.1a80 Decompressing into Memory Done Size = 0000.0000.0006.84a0 ttya initialized SC Control: EWP:0 IAP:0 FATAL:0 WAKEUP:0 BXIR:0 BPOR:0 SXIR:0 SPOR:1 POR:0 Probing Memory Bank #0 16 + 16 : 32 Megabytes Probing Memory Bank #1 0 + 0 : 0 Megabytes Probing Memory Bank #2 32 + 32 : 64 Megabytes Probing Memory Bank #3 0 + 0 : 0 Megabytes Probing /sbus@1f,0 at 0,0 Nothing there Probing /sbus@1f,0 at 1,0 Nothing there Probing /sbus@1f,0 at 2,0 cgsix

Power-On Self-T est (POST) 3-13

3-14 Sun Ultra 1 Series Service Manual—November 1995

T roubleshooting Procedures

This chapter describes how to troubleshoot possible problems and includes the corrective actions you can take.

Power On Fails or No Video page 4-2 Power Supply Test page 4-3 DSIMM Failures page 4-6 Hard Disk or CD-ROM Drive page 4-7 OpenBoot On-Board Diagnostics page 4-8 Selected On-Board Diagnostic Tests page 4-12 The probe-scsi and probe-scsi-all test page 4-13 System Board Test page 4-14

4-1

4.1 Power On Fails or No Video

4.1.1 Symptom

The system does not power up when the power switch on the keyboard is pressed.

4.1.2 Action

Check the AC power cord to be sure that it is properly connected to the system and to the wall outlet. Verify that the wall outlet is supplying AC power to the system.

Press the power switch at the rear of the system. If the system powers on, the keyboard may be defective or the system was unable to accept the keyboard power on signal at that time. Power off the system and press the keyboard power on switch again. If the system powers on, no further action is required. If the system does not power on, the keyboard may be defective. Connect a different Sun Type 5 or Sun Compact-1 keyboard and press the power key.

Note – The Sun Type 4 keyboar d does not have a power on key, and will cause the system to power up as soon as the Type 4 keyboard is connected to the system. The Type 4 keyboard is not supported on the Sun Ultra 1 system.

If you veriﬁed that AC power is being supplied to the system and the system does not power up, the system's power supply may be defective. See “Power Supply Test” on page 4-3.

4.1.3 Symptom

The system attempts to power up, but does not initialize the monitor and does not boot.

4.1.4 Action

Press the power on switch and observe the keyboard. The lights (LEDs) on the keyboard should be lit brieﬂy and you should hear a tone from the keyboard. If you hear no tone or see no lights on the keyboard, the system's power

4-2 Sun Ultra 1 Series Service Manual—November 1995

supply may be defective. See “Power Supply Test” below. If you hear a tone and see lights on the keyboard, but the system still fails to initialize, see Section 4.8, “System Board Test,” on page 4-14.

4.1.5 Symptom

No video output on the system monitor.

4.1.6 Action

Check the power cord to be sure that it is connected to the monitor and to the wall outlet. Verify that the wall outlet is supplying AC power to the monitor. Check the video cable connection between the monitor and the system's graphics card output port at the rear of the system. If the AC connection to the monitor is correct and the video cable is correctly connected, the system monitor or the system's internal graphics card may be defective. Replace the monitor or the graphics card.

4.2 Power Supply T est

Use a VOM (volt-ohm-milliammeter) to check the power supply output voltages. The power supply connectors J2601 and J2603 must remain connected to the system board.

Place the VOM negative probe on one of the Gnd (ground) pins in the connector, and test the +12v, -12v, +5v, +3.3v and +3.0v power pins individually with the VOM positive probe.

See Table 4-1 and Table 4-2 for power supply connector pin descriptions.

T r oubleshooting Procedures 4-3

Figure 4-1 Power Supply Connector J2601

Table 4-1 J2601 Pin Descriptions

Pin Description Pin Description

1 +12V 9 Thermal sensor 2 Gnd 10 -12V 3 Power on 11 Power off 412 513 6 +3V sense 14 Gnd 7 +3V set 15 Thermal sensor 8 +3V ovp 16 Power on reset

4-4 Sun Ultra 1 Series Service Manual—November 1995

Figure 4-2 Power Supply Connector J2603

Table 4-2 J2603 Pin Descriptions

Pin Description Pin Description

1 +5V 10 Gnd 2 +5V 11 Gnd 3 +5V 12 Gnd 4 +3.3V 13 Gnd 5 +3.3V 14 Gnd 6 +3.3V 15 Gnd 7 +3.0V 16 Gnd 8 +3.0V 17 Gnd 9 +3.0V 18 Gnd

If any of the voltages are not present with the power supply on and are connected to the system board, replace the power supply.

T r oubleshooting Procedures 4-5

4.3 DSIMM Failures

At times, the operating system, diagnostic program, or POST may not display a DSIMM location (U number) as part of the memory error message. If you encounter this situation, and the only available information is a physical memory address and failing byte (or bit), use the following table to locate the defective DSIMM.

Table 4-3 DSIMM Physical Memory Address

Physical Memory

DSIMM Slot Location

Bank 0 0000 0000 0fff ffff U0701 (byte 00-15, bits 000-127) U0601 (byte 16-31, bits 128-255) Bank 1 1000 000 1fff ffff U0702 (byte 00-15, bits 000-127) U0602 (byte 16-31, bits 128-255) Bank 2 2000 000 2fff ffff U0703 (byte 00-15, bits 000-127) U0603 (byte 16-31, bits 128-255) Bank 3 3000 000 3fff ffff U0704 (byte 00-15, bits 000-127) U0604 (byte 16-31, bits 128-255)

Address Start

Physical Memory Address End

In Table 4-3, each bank allows enough address space to accommodate two 16MB, two 32MB, two 64MB, or two 128MB DSIMMs. Unused addresses are mapped out by the memory management hardware. So, regardless of the capacity of the DSIMM installed, the physical memory starting address will always be as shown in the table.

4-6 Sun Ultra 1 Series Service Manual—November 1995

4.4 Hard Disk or CD-ROM Drive

4.4.1 Symptoms

Disk drive read, write, or parity errors are reported by the operating system or customer applications.

CD-ROM drive read or parity errors are reported by the operating system or customer applications.

4.4.2 Action

Replace the drive indicated by the failure messages. The operating system identiﬁes the internal drives as follows:

Table 4-4 Internal Drives Identiﬁcation

Operating System Address Drive Physical Location and Target

c0t0d0s# Lower SCSI Disk, target 0

c0t1d0s# Upper SCSI Disk, target 1 c0t6d0s# CD-ROM drive, target 6

Note – The # symbol in the examples may be a number between 0 and 7 and represents the slice or partition on the drive.

4.4.3 Symptom

Disk drive or CD-ROM fails to boot or is not responding to commands.

4.4.4 Action

This symptom could be caused by a defective system SCSI controller. First test the drive's response to the probe-scsi command. At the system ok prompt, type probe-scsi and press Return. If the disk drive responds correctly to this command, a message will appear:

T r oubleshooting Procedures 4-7

ok probe-scsi Target 0 Unit 0 Disk SEAGATE ST5660N SUN1.050638DX168801 Copyright (c) 1993 Seagate All rights reserved 0000 Target 1 Unit 0 Disk SEAGATE ST5660N SUN1.050638DX168801 Copyright (c) 1993 Seagate All rights reserved 0000 Target 6 Unit 0 Removable Read Only device TOSHIBA XM5301TASUN4XCD173506/22/95

If the drives respond and a message is displayed, the system's SCSI controller has successfully probed the devices. This is an indication that the system's main logic board is working correctly. If one drive does not respond to the probe but the others do, replace the unresponsive drive.

If your system has only one internal disk drive and the probe-scsi test fails to show the device in the message, replace the drive. If after replacing the drive the problem still persist, replace the main logic board. If replacing both the disk drive and the main logic board does not correct the problem, replace the internal disk drive cable and SCSI backplane assembly.

4.5 OpenBoot On-Board Diagnostics

4.5.1 watch-clock

This test reads a register in the NVRAM/TOD (Non-Volatile RAM/Time of Day) chip on the main logic board and displays the result as a seconds counter. The counter should count from 0 to 59 repeatedly until you interrupt it by pressing any key on the keyboard.

4-8 Sun Ultra 1 Series Service Manual—November 1995

Example:

ok watch-clock Watching the 'seconds' register of the real time clock chip. It should be 'ticking' once a second. Type any key to stop. 41 (this counter increments from 0 to 59)

4.5.2 watch-net, watch-aui, watch-tpe, watch-net-all

These tests monitor broadcast Ethernet packets on the Ethernet cable(s) connected to the system. Good packets received by the system are indicated by a period (.) displayed on the screen. Errors such as Framing Error and Cyclic Redundancy Check (CRC) Error are indicated with an X, along with the error description.

Example:

ok watch-net Using AUI Ethernet Interface Lance register test -- succeeded. Internal loopback test -- succeeded. External loopback test -- Lost Carrier (transceiver cable problem?) send failed. Using TP Ethernet Interface Lance register test -- succeeded. Internal loopback test -- succeeded. External loopback test -- succeeded. Looking for Ethernet packets. '.' is a good packet. 'X' is a bad packet. Type any key to stop.

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

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

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

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

.............................Framing error CRC error

X..............

T r oubleshooting Procedures 4-9

The Sun Ultra 1 Series has two types of on-board Ethernet interfaces: 10 BASE-T (also called twisted-pair Ethernet or TPE) and 10 BASE5 (also called thick ethernet or AUI). Only one Ethernet cable is connected to the back of the system. The system automatically selects which interface is connected and active.

The AUI port is ﬁrst tested by transmitting packets and checking for No Carrier or response packets. If the AUI test fails, the TPE port is then tested. Typing watch-net activates this automatic selection. You may also control the selection of Ethernet interfaces to monitor by using speciﬁc commands. Use

watch-tpe to monitor the 10 BASE-T (Twisted-Pair Ethernet) connection or watch-aui to monitor the 10 BASE5 (thicknet) connection. Example:

ok watch-tpe Using TP Ethernet Interface Lance register test -- succeeded. Internal loopback test -- succeeded. External loopback test -- succeeded. Looking for Ethernet packets. '.' is a good packet. 'X' is a bad packet. Type any key to stop.

The watch-net-all command monitors Ethernet packets on any Ethernet interface installed in the system. For example, if you have an SBus Ethernet card installed in one of the system's SBus slots, watch-net-all will start by monitoring that card's Ethernet transmissions. When you interrupt the test on that interface by pressing any key, watch-net-all then goes on to test the next Ethernet interface it ﬁnds in the system.

4-10 Sun Ultra 1 Series Service Manual—November 1995

Example:

ok watch-net-all /sbus@1f,0/lebuffer@1,40000/le@1,60000 Internal loopback test -- succeeded. External loopback test -- succeeded. Looking for Ethernet packets. '.' is a good packet. 'X' is a bad packet. Type any key to stop.

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

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

............................(keyboard key pressed here)

/sbus@1f,0/ledma@e,8400010/le@e,8c00000 Using AUI Ethernet Interface Lance register test -- succeeded. Internal loopback test -- succeeded. External loopback test -- Lost Carrier (transceiver cable problem?) send failed. Using TP Ethernet Interface Lance register test -- succeeded. Internal loopback test -- succeeded. External loopback test -- succeeded. Looking for Ethernet packets. '.' is a good packet. 'X' is a bad packet. Type any key to stop.

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

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

4.5.3 test <alias name>, test <device path>, test-all

The test command, combined with a device's alias or device pathname, will execute that device's selftest program. If a device has no selftest program, this message will be displayed: No selftest method for <device name>. To run the selftest program for a device, type the test command followed by the device alias or device path name.

T r oubleshooting Procedures 4-11

Example:

ok test floppy Testing floppy disk system. A formatted disk should be in the drive. Test succeeded.

4.6 Selected On-Board Diagnostic T ests

The on-board diagnostic tests that you can run on the Sun Ultra 1 Series systems are listed in Table 4-5.

Table 4-5 Selected On-Board Diagnostics Tests

Type of Test Description Preparation

test screen

test floppy

test net-aui

test net-tpe

test net

Tests the system's video graphics hardware and monitor

Tests the ﬂoppy drive's ability to respond to commands

Performs an internal and external loopback test on the AUI (Thick) Ethernet interface

Performs an internal and external loopback test on the TPE (TwistedPair Ethernet) interface

Performs an internal and external loopback test on the auto-selected system Ethernet interface

The diag-switch? NVRAM parameter must be set to true for the test to run.

Requires a formatted diskette to be inserted into the drive.

Connect a cable to the system's AUI Ethernet port and to an Ethernet tap or the test will fail the external loopback phase.

Connect a cable to the system's TPE port and to a TPE hub or the test will fail the external loopback phase. If the tpe-link-test? parameter is false (disabled), the external loopback test will appear to pass even if a cable is not connected.

A cable must be attached to the system and to an Ethernet tap or hub or the external loopback test will fail.

4-12 Sun Ultra 1 Series Service Manual—November 1995

Table 4-5 Selected On-Board Diagnostics Tests

Type of Test Description Preparation

test ttya test ttyb

test keyboard

test-all

This test ouputs an alphanumeric test pattern on the system's serial ports (ttya = serial port A, ttyb = serial port B).

This test executes the keyboard's selftest.

This command tests all devices in the system that have a selftest program.

You must attach a terminal to the port being tested to observe the output.

The four LEDs on the keyboard should ﬂash on once, and this message is displayed: Keyboard Present.

Tests are executed in order using the device tree (viewed with the show- devs command) as reference.

4.7 The probe-scsi and probe-scsi-all test

The probe-scsi test sends an inquiry command to internal and external SCSI devices connected to the Sun Ultra 1 Series on-board SCSI interface. If a SCSI device is connected and powered up the target address, unit number, device type, and manufacturer's name is displayed.

Example:

ok probe-scsi Target 0 Unit 0 Disk SEAGATE ST31200W SUN1.058724 Target 1 Unit 0 Disk SEAGATE ST31200W SUN1.058724 Target 6 Unit 0 Removable Read Only device TOSHIBA XM5301TASUN4XCD1735

The probe-scsi-all test sends an inquiry command to all SCSI devices on all the SCSI host adapters installed in the system. The ﬁrst identiﬁer listed in the display is the SCSI host adapter's address in the system's device tree, followed by the SCSI device identiﬁcation data.

T r oubleshooting Procedures 4-13

Example:

4.8 System Board T est

On the keyboard, press and hold the Stop and D keys. While holding the keys down, turn the system's power switch on and watch the lights on the keyboard.

ok probe-scsi-all /sbus@1f,0/dma@1,81000/esp@1,80000 Target 2 Unit 0 Disk SEAGATE ST41600N SUN1.3G00286965 /sbus@1f,0/espdma@e,8400000/esp@e,8800000 Target 0 Unit 0 Disk SEAGATE ST31200W SUN1.058724 Target 1 Unit 0 Disk SEAGATE ST5660N SUN05350638 Target 6 Unit 0 Removable Read Only device TOSHIBA XM5301TASUN4XCD1735

This action puts the system into Power-On Self-Test (POST) mode. The Caps Lock key on the keyboard should ﬂash on and off, indicating that the system is running the built-in tests.

If a failure occurs during POST, one of the other keys on the keyboard may light, indicating a failed system part. See Section 3.5, “System and Keyboard LEDs” for the meaning of the failure codes. If a failure code appears, replace the defective part indicated by the code.

If the Caps Lock key fails to ﬂash on and off after you have pressed and held the Stop and D keys, POST has failed. The most probable cause of this type of failure is the system board.

However, other optional parts in the system could cause POST to fail in this way. Before replacing the system board, you should remove any optional SBus cards and memory and run the test again. The system only requires two DSIMMs in slot U0701 and U0601, the main logic board, the power supply, and the keyboard to be installed. By removing the other parts and testing the system again, you eliminate the possibility that those parts are causing the failure.

4-14 Sun Ultra 1 Series Service Manual—November 1995

To receive additional POST failure information, you may connect a terminal to serial port A on the system. With the terminal connected, failure messages that give more information about the failure may appear.

T r oubleshooting Procedures 4-15

4-16 Sun Ultra 1 Series Service Manual—November 1995

Part 3 — Preparing for Service

Safety and Tool Requirements page 5-1 Power On and Off page 6-1

Safety and T ool Requirements

Before servicing any part of the Sun Ultra 1 Series system, read the instructions and cautions in this section. This information explains how to work safely when servicing a Sun Microsystems product.

5.1 Safety Requirements

For your protection, observe the following safety precautions when setting up your equipment:

• Follow all cautions, warnings, and instructions marked on the equipment.

• Ensure that the voltages and frequency rating of the power outlet you use

match the electrical rating label on the equipment.

• Never push objects of any kind through openings in the equipment. They

may touch dangerous voltage points or short out components resulting in ﬁre or electric shock.

• Refer servicing of equipment to qualiﬁed personnel.

5.2 Symbols

The following symbols mean:

Caution – Risk of personal injury and equipment damage. Follow the instructions.

5-1

Warning – Hazardous voltages are present. To reduce the risk of electric shock and danger to personal health, follow the instructions.

Caution – Hot surfaces. Avoid contact. Surfaces are hot and may cause personal injury if touched.

5.3 Safety Precautions

5.3.1 Modiﬁcation to Equipment

Caution – Do not make mechanical or electrical modiﬁcations to the

5.3.2 Placement of a Sun Product

equipment. Sun Microsystems, Inc. is not responsible for regulatory compliance of a modiﬁed Sun product.

Caution – To ensure reliable operation of your Sun product and to protect it

from overheating, openings in the equipment must not be blocked or covered. A Sun product should never be placed near a radiator or hot air register.

5.3.3 Power Cord Connection

Warning – Not all power cords have the same current ratings. Household extension cords do not have overload protection. Do not use household extension cords with your Sun product.

Warning – The power switch of this product functions as a standby type device only. The power cord serves as the primary disconnect device for the system. Be sure to plug the power cord into a grounded power outlet that is nearby the system and is readily accessible. Do not connect the power cord when the power supply has been removed from the system chassis.

5-2 Electron Service Manual—November 1995

5.3.4 Electrostatic Discharge

5.3.5 Lithium Battery

5.4 T ools Required

Caution – The boards and hard disk drive contain electronic components that are extremely sensitive to static electricity. Ordinary amounts of static from your clothes or work environment can destroy components. Do not touch the components themselves or any metal parts. Wear a wrist strap when handling the drive assemblies, boards or cards.

Caution – On Sun system boards, a lithium battery is molded into the real-time clock; SDS No. M48T59Y, MK48TXXB-XX, M48T18-XXXPCZ or M48T59W-XXXPCZ. Batteries are not customer replaceable parts. They may explode if mistreated. Do not dispose of the battery in ﬁre. Do not disassemble it or attempt to recharge it.

• Phillips screwdriver

• Long-nose plier

• Grounding wrist strap

• Volt-ohm-milliammeter (VOM) for checking voltages and continuity

• Antistatic surface

Place static-sensitive parts such as boards, cards, disk drives, and TOD/NVRAM on an antistatic surface. The following items can be used as an antistatic surface:

• The bag used to wrap a Sun replacement part

• The shipping container used to package a Sun replacement part

• The inner side (metal part) of the system unit cover

• Sun ESD mat, P/N 250-1088. You can purchase it through your Sun sales

representatives

• Disposable ESD mat, which is shipped with replacement parts or optional

system features.

Safety and T ool Requir ements 5-3

5-4 Electron Service Manual—November 1995

Power On and Off

Powering Off the System page 6-1 Powering On the System page 6-2

6.1 Powering Off the System

Before turning off system power, shut down the operating system. Failure to shut down the operating system can result in loss of data.

1. Notify users that the system is going down.

2. Back up the system ﬁles and data.

3. Shut down the system.

4. Press the power switch to the stand-by mode at the left rear of the system.

The LED on the front of the system should not be lit and the fans should not be running.

6-1

Power on/ standby switch

Figure 6-1 Rear View of the System

Warning – You must disconnect the AC power cord prior to handling the power supply. When servicing any other system components, the AC power cord should remain connected. When the system power is in the stand-by position, and the AC power cord remains connected to a power outlet, the hazardous AC voltage is still present in the power supply primary.

5. Turn off the power to the monitor.

6. Disconnect cables to any external units.

6.2 Powering On the System

1. Turn the power switch on to all peripherals connected to the system.

Turn the power on to the attached peripherals ﬁrst so the system will recognize the peripherals when the system is powered on.

2. Turn on the power switch to the monitor.

3. Turn on the power switch to the system.

6-2 Sun Ultra 1 Series Service Manual—November 1995

Part 4 — Subassembly Removal and

Replacement

Internal Access page 7-1 Major Subassemblies page 8-1 Storage Devices page 9-1

Internal Access

Removing the Cover page 7-1 Attaching the Wrist Strap page 7-3 Replacing the Cover page 7-4

7.1 Removing the Cover

1. Use a Phillips screwdriver to remove the lock block (if installed) on the cover.

See Figure 7-1.

Lock block

Figure 7-1 Location of Lock Block

7-1

2. Loosen the captive screws securing the cover.

See Figure 7-2.

3. Grasp the sides of the cover and lift up the back of the cover. After the cover clears the back panel, push the cover away from the front panel.

Cover

Captive screws

Figure 7-2 Removing the Cover

7-2 Sun Ultra 1 Series Service Manual—November 1995

7.2 Attaching the Wrist Strap

1. Unwrap the ﬁrst two folds of the wrist strap and wrap the adhesive side ﬁrmly against your wrist.

See Figure 7-3.

2. Peel the liner from the copper foil at the opposite end of the wrist strap and attach the copper end of the wrist strap to the top of the power supply.

Wrist strap

Power supply

Figure 7-3 Attaching the Wrist Strap

Internal Access 7-3

7.3 Replacing the Cover

1. Position the cover on the system as shown.

Channel (2 places)

Flange

See Figure 7-4.

Cover

Captive screws

Flange

Figure 7-4 Replacing the Cover

2. Lower the back side of the cover until the channels on both sides of the cover align with the two ﬂanges on the rear of the system. Press down on both sides of the cover until it is ﬁrmly seated.

See Figure 7-4.

3. Tighten the captive screws on the back panel.

4. Replace the lock block with a Phillips screwdriver.

See Figure 7-1.

7-4 Sun Ultra 1 Series Service Manual—November 1995

Major Subassemblies

This chapter explains how to remove and replace the major subassemblies. Refer to the following before you remove any parts:

Powering Off the System page 6-1 Removing the Cover page 7-1 Attaching the Wrist Strap page 7-3

Refer to the following after replacing any parts:

Replacing the Cover page 7-4 Powering On the System page 6-2

The following is the list of the major subassemblies for the Sun Ultra 1 Series system:

Power Supply page 8-2 Fan Assembly page 8-5 Speaker page 8-8 Diskette Cable page 8-12 SCSI Cable/Backplane page 8-16 Peripheral Power Cable page 8-20 Speaker/LED Cable page 8-25

8-1

8.1 Power Supply

8.1.1 Removing the Power Supply

1. Disconnect the AC power cable from the system.

2. Disconnect the DC connector from the system board at J2603.

See Figure 8-1.

3. Disconnect the DC connector from the system board at J2601.

4. Remove the DC harness from the clip and disconnect the DC connector from the peripheral power cable at P1.

Clip

DC harness

Power supply

Captive screw

Figure 8-1 Removing the Power Supply

8-2 Sun Ultra 1 Series Service Manual—November 1995

J2601

J2603

5. Loosen the power supply captive screw on the back panel.

See Figure 8-1.

6. Push the power supply toward the front side of the chassis to disengage the mounting hooks.

7. Tilt the power supply slightly toward the system board, and lift it out of the chassis.

8.1.2 Replacing the Power Supply

1. Lower the power supply into the chassis and push it all the way toward the back panel. The hooks in the base of the chassis must engage with the cutouts at the bottom of the power supply.

See Figure 8-2.

Power supply

System board

Mounting hook (3)

Back panel

Figure 8-2 Replacing the Power Supply

Major Subassemblies 8-3

Chassis

2. Tighten the power supply captive screw on the back panel.

See Figure 8-3.

3. Connect the DC connector to the peripheral power cable at P1.

4. Route and insert the DC harness through the clip on the drive bracket.

5. Connect the DC connector on the system board at J2603.

6. Connect the DC connector on the system board at J2601.

Clip

Power supply

Captive screw

Back panel

Figure 8-3 Securing and Connecting the Power Supply

8-4 Sun Ultra 1 Series Service Manual—November 1995

J2601

J2603

8.2 Fan Assembly

8.2.1 Removing the Fan Assembly

1. Disconnect the fan power cable from the fan.

See Figure 8-4.

Fan power cable

Fan

Figure 8-4 Fan and Power Cable Connection

Major Subassemblies 8-5

2. Press the middle tab on the fan/speaker bracket toward the center of the chassis.

See Figure 8-5.

3. Grasp the fan and pull it from the fan/speaker bracket in the chassis.

Fan

Fan/speaker bracket

Chassis

Middle tab

Figure 8-5 Fan Assembly

8-6 Sun Ultra 1 Series Service Manual—November 1995

8.2.2 Replacing the Fan Assembly

1. Position the fan assembly so the arrow on the fan faces the chassis, and the harness faces the power supply.

See Figure 8-6.The arrow on the fan indicates the airﬂow direction.

2. Insert the fan assembly into the fan/speaker bracket in the chassis.

Fan

Fan/speaker bracket

Chassis

Figure 8-6 Replacing the Fan Assembly

3. Connect the fan connector to the fan power cable.

See Figure 8-4.

Major Subassemblies 8-7

8.3 Speaker

8.3.1 Removing the Speaker

1. Disconnect the fan power cable from the fan.

See Figure 8-7.

2. Use a long-nose plier to disconnect the speaker connectors.

Fan power cable

Speaker connector

Figure 8-7 Fan and Speaker Cable Connection

3. Push in the tabs of the fan/speaker bracket on the chassis.

See Figure 8-8.

4. Grasp and remove the fan/speaker bracket from the chassis.

Speaker

Fan

8-8 Sun Ultra 1 Series Service Manual—November 1995

Fan/speaker bracket

Chassis

Tabs

Figure 8-8 Removing the Fan/Speaker Bracket from the Chassis

Major Subassemblies 8-9

5. Release the bottom part of the speaker from the fan/speaker bracket, and remove the speaker.

See Figure 8-9.

Speaker

Figure 8-9 Removing the Speaker from the Fan/Speaker Bracket

Fan/speaker bracket

8-10 Sun Ultra 1 Series Service Manual—November 1995

8.3.2 Replacing the Speaker

1. Position the speaker in the fan/speaker bracket.

Make sure the speaker connectors are on the top. See Figure 8-10.

2. Insert the fan/speaker bracket into the chassis.

Make sure the tabs are lock into the chassis to ensure proper replacement.

Fan power cable

Speaker cable

Fan/speaker bracket

Chassis

Tabs

Figure 8-10 Replacing the Fan/Speaker Bracket into the Chassis

3. Connect the speaker cable to the speaker connectors with a long-nose plier.

See Figure 8-7. The speaker cable has two different connector sizes. These connectors are keyed, to allow the correct connection to the speaker.

Major Subassemblies 8-11

8.4 Diskette Cable

8.4.1 Removing the Diskette Cable

4. Connect the fan power cable to the fan.

See Figure 8-7.

Note – If a CD-ROM or tape drive is installed in this system, begin at Step 1. If the system does not have a CD-ROM or a tape drive, go directly to Step 4.

1. Remove the two drive mounting screws from the chassis.

See Figure 8-11.

Clip

Figure 8-11 Removing the Drive Bracket

8-12 Sun Ultra 1 Series Service Manual—November 1995

Screws

2. Remove the DC harness from the clip located on the drive bracket.

See Figure 8-11.

3. Push the drive bracket toward the disk drive bay, and gently ﬂip it over. Place it on top of the disk drive bay.

See Figure 8-12.

Drive bracket

Diskette drive

Diskette cable

Disk drive bay

SCSI backplane

Figure 8-12 Diskette Cable

4. Disconnect the diskette cable from the diskette drive.

See Figure 8-12.

5. Disconnect the diskette cable from the SCSI backplane.

Major Subassemblies 8-13

8.4.2 Replacing the Diskette Cable

1. Connect the replacement diskette cable to the diskette drive.

See Figure 8-12.

2. Connect the diskette cable to the socket (marked FLOPPY) on the SCSI backplane.

Note – If the system does not have a CD-ROM or a tape drive, you are done

with replacing the diskette cable. If a CD-ROM or tape drive is installed in this system, continue with Step 3.

3. Position the drive bracket in the chassis, and slide it toward the openings in the side of the chassis. The hooks in the base of the chassis must lock into the holes in the bottom of the drive bracket.

See Figure 8-13.

8-14 Sun Ultra 1 Series Service Manual—November 1995

Holes (3)

Drive bracket

Chassis

DC harness

Clip

Screws

Figure 8-13 Replacing the Drive Bracket

4. Route the DC harness through the clip on the side of the bracket.

See Figure 8-13.

5. Replace the two drive bracket mounting screws on the chassis.

Major Subassemblies 8-15

8.5 SCSI Cable/Backplane

8.5.1 Removing the SCSI Cable/Backplane

1. Remove the drive bracket from the chassis.

See Section 9.2.1, “Removing the Bracket from the Chassis.”

2. Remove the hard disk drive assemblies.

If there are two hard disk drives in the system, remove both of them. See Section 9.1.1, “Removing a Disk Drive.”

Note – Make note of the slot each drive was installed into. Each slot has a different SCSI target address (lower slot is target 0, and upper slot is target 1). Installing a drive into the wrong slot could result in the ﬁle system problem or system not booting.

3. Disconnect the peripheral power cable (P4) from the SCSI backplane (marked PWR).

See Figure 8-14.

4. Disconnect the diskette cable (if present) from the SCSI backplane (marked FLOPPY).

5. Remove the two screws from the SCSI backplane.

8-16 Sun Ultra 1 Series Service Manual—November 1995

SCSI cable

SCSI backplane

Screws

Diskette cable

Figure 8-14 SCSI/Backplane Cable Connection

6. Disconnect the SCSI cable from the system board (J2602).

See Figure 8-15.

7. Pull the SCSI cable out through the disk drive bay.

8. Remove the SCSI cable from the three cable clips in the base of the chassis.

Major Subassemblies 8-17

Disk drive bay

J2602

Cable clips

SCSI backplane

SCSI cable

Figure 8-15 Removing the SCSI Backplane

9. Remove the SCSI backplane from the bracket.

See Figure 8-15.

8.5.2 Replacing the SCSI Cable/Backplane

1. Route the SCSI cable under the three cable clips in the base of the chassis and through the opening near the front edge of the system board.

See Figure 8-15.

2. Connect the SCSI cable to the system board at J2602.

3. Position the SCSI backplane on the disk drive bay so the SCSI backplane slots sit on the tabs.

See Figure 8-16.

8-18 Sun Ultra 1 Series Service Manual—November 1995

T 4

Disk drive bay

SCSI back plane slot (4)

places

Screws

Diskette cable

Figure 8-16 Replacing the SCSI Backplane

4. Replace the two screws to secure the backplane to the bracket.

5. Connect the peripheral power cable (P4) to the SCSI backplane (marked PWR).

See Figure 8-14.

6. Connect the diskette cable (if present) to the SCSI backplane (marked FLOPPY on the backplane).

7. Replace the hard disk drive assemblies.

See Section 9.1.2, “Replacing a Disk Drive.”

Note – If there are two drives, install the drives into their original slots. If this is not done, the system may fail to boot, or ﬁle systems may fail to mount.

8. Replace the bracket into the chassis.

See Section 9.2.4, “Replacing the Bracket into the Chassis.”

Major Subassemblies 8-19

8.6 Peripheral Power Cable

8.6.1 Removing the Peripheral Power Cable

1. Remove the two screws securing the drive bracket to the chassis.

See Figure 8-17.

Clip

Figure 8-17 Removing the Drive Bracket

2. Remove the DC harness from the clip located on the drive bracket.

See Figure 8-17.

3. Disconnect the DC harness from the peripheral power cable at P1.

4. Push the drive bracket toward the disk drive bay, and gently ﬂip it over. Place it on top of the disk drive bay.

See Figure 8-18.

8-20 Sun Ultra 1 Series Service Manual—November 1995

Screws

Disk drive bay

SCSI cable

Diskette cable

Figure 8-18 Removing the Peripheral Power Cable

5. Detach the peripheral power cable from the peripherals and the fan. See Table 8-1 and Figure 8-18.

Table 8-1Peripheral Power Cable Connection

Connector Peripheral

P2 Diskette drive P3 CD-ROM/tape drive P4 SCSI backplane (PWR) Fan power connector Fan

Major Subassemblies 8-21

6. Remove the peripheral power cable from the cable clips on the SCSI backplane.

SCSI backplane

Peripheral power cable

Clips

Figure 8-19 Peripheral Power Cable Routing on the SCSI Backplane

8.6.2 Replacing the Peripheral Power Cable

1. Connect the replacement peripheral power cable to each applicable part.

See Table 8-1 and Figure 8-18.

8-22 Sun Ultra 1 Series Service Manual—November 1995

Disk drive bay

SCSI cable

Diskette cable

Figure 8-20 Replacing the Peripheral Power Cable

2. Route the cable through the hooks on the SCSI backplane.

See Figure 8-19.

3. Position the bracket in the chassis, and slide it toward the opening in the side of the chassis.

See Figure 8-21.

4. Connect the DC harness to the peripheral power cable at P1.

5. Reroute the DC harness through the clip on the bracket.

6. Replace the two screws to secure the drive bracket to the chassis.

Major Subassemblies 8-23

Bracket

Chassis

DC Harness

Figure 8-21 Replacing the Drive Bracket

8-24 Sun Ultra 1 Series Service Manual—November 1995

Clip

Screws

General Electric SUN ULTRA 1 SERVICE MANUAL_SM_408287-051_A OMEGA IV and V Table Schematics

Specifications and Main Features

Frequently Asked Questions

User Manual