Sun Microsystems 2 User manual

Sun Microsystems, Inc.

2500 Garcia Avenue

Mountain View, CA 94043

U.S.A.

SPARCstation2FieldServiceManual

Part No: 800-5166-10

Revision A of February 1991

1991 by Sun Microsystems, Inc.—Printed in USA.

2550 Garcia Avenue, Mountain View, California 94043-1100

form or by any means—graphic, electronic or mechanical, including photocopying,

recording, taping, or storage in an information retrieval system— without prior written

permission of the copyright owner.

The OPEN LOOK and the 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 Xerox to the Xerox

Graphical User Interface, which license also covers Sun’s licensees.

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 Technical Data

and Computer Software clause at DFARS 252.227-7013 (October 1988) and FAR 52.227-19

(June 1987).

The product described in this manual may be protected by one or more U.S. patents,

foreign patents, and/or pending applications.

TRADEMARKS

The Sun logo, Sun Microsystems, Sun Workstation, NeWS, and SunLink are registered

trademarks of Sun Microsystems, Inc. in the United States and other countries.

Sun, Sun-2, Sun-3, Sun-4, Sun386i, SunCD, SunInstall, SunOS, SunView, NFS, and

OpenWindows are trademarks of Sun Microsystems, Inc.

UNIX and OPEN LOOK are registered trademarks of UNIX System Laboratories, Inc.

PostScript is a registered trademark of Adobe Systems Incorporated. Adobe also owns

copyrights related to the PostScript language and the PostScript interpreter. The

trademark PostScript is used herein only to refer to material supplied by Adobe or to

programs written in the PostScript language as defined by Adobe.

X Window System is a product of the Massachusetts Institute of Technology.

SPARC is a registered trademark of SPARC International, Inc. Products bearing the

SPARC trademark are based on an architecture developed by Sun Microsystems, Inc.

SPARCstation is a trademark of SPARC International, Inc., licensed exclusively to Sun

Microsystems, Inc.

All other products or services mentioned in this document are identified by the

trademarks, service marks, or product names as designated by the companies who market

those products. Inquiries concerning such trademarks should be made directly to those

companies.

iii

Contents

About This Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

1. System Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Major Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Main Logic Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

CPU Core. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

SBus Slots. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Memory Management Unit+. . . . . . . . . . . . . . . . . . . . . . . . 10

S4 DMA+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Dynamic RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Input/Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Eight Bit Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Single Inline Memory Modules (SIMMs). . . . . . . . . . . . . . . . . 14

SBus Boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Mass Storage Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

iv SPARCstation 2 Field Service Manual—February 1991

Monitors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2. Diagnostics Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

How It Fits Together. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

When to Use Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Boot PROM Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Power-On Self-Test (POST) . . . . . . . . . . . . . . . . . . . . . . . . . 24

On-Board Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Sundiag System Exerciser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

SunDiagnostic Executive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Monitor and Forth Toolkit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3. Preparing to Work on the System . . . . . . . . . . . . . . . . . . . . . . . . 33

Halting the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Tools Needed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Disconnecting Desktop Storage Packs . . . . . . . . . . . . . . . . . . . 36

Disconnecting External Storage Modules . . . . . . . . . . . . . . . . 36

Removing the System Unit’s Cover . . . . . . . . . . . . . . . . . . . . . 37

Attaching a Wrist Strap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

4. FRU Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Before You Begin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Removing and Replacing FRUs . . . . . . . . . . . . . . . . . . . . . . . . 42

FRU Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Single Inline Memory Modules (SIMMs) . . . . . . . . . . . . . 46

Determining Faulty SIMM Locations. . . . . . . . . . . . . . . . . . . . 46

SBus Boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Contents v

Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Hard Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Diskette Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Fan Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Main Logic Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Serial Port Jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Main Logic Board Voltage Test Points . . . . . . . . . . . . . . . . 79

Before Replacing the Main Logic Board . . . . . . . . . . . . . . 83

Removing the Main Logic Board . . . . . . . . . . . . . . . . . . . . 88

Preparing Main Logic Board for Replacement . . . . . . . . . 89

Replacing the Main Logic Board. . . . . . . . . . . . . . . . . . . . . 90

Boot PROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

NVRAM/TOD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Speaker. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Replacing the System Unit’s Cover . . . . . . . . . . . . . . . . . . . . . 98

Connecting the Desktop Storage Pack . . . . . . . . . . . . . . . . . . . 99

Connecting the External Storage Module . . . . . . . . . . . . . . . . 99

Video Monitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Mouse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

How to Turn the Power Back On . . . . . . . . . . . . . . . . . . . . . . . 100

A. System Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Regulatory Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Input Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

vi SPARCstation 2 Field Service Manual—February 1991

Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

B. Illustrated Parts Breakdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Parts Breakdown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

C. FRU List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

FRU List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

D. Open Boot PROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Open Boot PROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125

vii

Figures

Figure 1-1 SPARCstation 2 Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . 2

Figure 1-2 Top View of the System With the Cover Removed . . . . . . . . . 3

Figure 1-3 The Workstation’s Main Logic Board. . . . . . . . . . . . . . . . . . . . . 4

Figure 1-4 Block Level Diagram of the Main Logic Board . . . . . . . . . . . . . 7

Figure 2-1 Default Boot Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 2-2 Arrangement of Keyboard LEDs. . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 2-3 Keyboard LED Diagnostic Codes. . . . . . . . . . . . . . . . . . . . . . . . 26

Figure 2-4 Location of SIMM Slots in System Unit . . . . . . . . . . . . . . . . . . . 27

Figure 2-5 SIMM Slot Locations on Main Logic Board. . . . . . . . . . . . . . . . 28

Figure 2-6 Halting the System and Displaying On-Board Diagnostics . . 30

Figure 3-1 System Unit Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Figure 3-2 The System Unit’s Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Figure 4-1 Top View of the System With the Cover Removed . . . . . . . . . 43

Figure 4-2 Boards and Modules (continued on next page) . . . . . . . . . . . . 44

Figure 4-2 Boards and Modules (continued) . . . . . . . . . . . . . . . . . . . . . . . . 45

Figure 4-3 SIMM Extraction Tool. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

viii SPARCstation 2 Field Service Manual—February 1991

Figure 4-4 Inserting the SIMM Extraction Tool . . . . . . . . . . . . . . . . . . . . . . 49

Figure 4-5 Final Manual Removal of a SIMM . . . . . . . . . . . . . . . . . . . . . . . 50

Figure 4-6 Location of SIMM Slots in System Unit . . . . . . . . . . . . . . . . . . . 51

Figure 4-7 SIMM Slot Location on Main Logic Board. . . . . . . . . . . . . . . . . 52

Figure 4-8 4 Megabyte SIMM: Horizontally-mounted Chips . . . . . . . . . . 53

Figure 4-9 Removing and Replacing the Power Supply. . . . . . . . . . . . . . . 60

Figure 4-10 Hard Disk Drive with 6 Jumpers—Jumper Setting for Drive 1 64

Figure 4-11 Hard Disk Drive with 5 Jumpers—Jumper Setting for Drive 1 64

Figure 4-12 Hard Disk Drive with 6 Jumpers—Jumper Setting for Drive 2 65

Figure 4-13 Hard Disk Drive with 5 Jumpers—Jumper Setting for Drive 2 65

Figure 4-14 Removing and Replacing the Hard Disk Drive. . . . . . . . . . . . . 67

Figure 4-15 Connecting Power and Data Cables to the Hard Disk Drive . 68

Figure 4-16 Removing and Replacing the Diskette Drive . . . . . . . . . . . . . . 70

Figure 4-17 Connecting Power and Data Cables to the Diskette Drive . . . 72

Figure 4-18 Removing and Replacing the Fan Assembly. . . . . . . . . . . . . . . 74

Figure 4-19 Connecting "Y" Power Cable to Fan Assembly. . . . . . . . . . . . . 75

Figure 4-20 Top View of System Unit’s Internal Parts . . . . . . . . . . . . . . . . . 77

Figure 4-21 Serial Port Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Figure 4-22 Preset RS-423 Jumper Positions. . . . . . . . . . . . . . . . . . . . . . . . . . 78

Figure 4-23 RS-232 Jumper Positions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Figure 4-24 Pin Location of Power Supply Connector (J0701). . . . . . . . . . . 80

Figure 4-25 Main Logic Board Layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Figure 4-26 Removing and Replacing the Main Logic Board . . . . . . . . . . . 92

Figure 4-27 Replacing the System Unit’s Cover. . . . . . . . . . . . . . . . . . . . . . . 99

Figure B-1 System Interconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Figures ix

Figure B-2 Exploded View of the System Unit. . . . . . . . . . . . . . . . . . . . . . . . . 109

Figure B-3 Exploded View of the System Unit Showing Drive Bracket. . . . 110

Figure B-4 Exploded View of the Main Logic Board in the System Unit. . . 111

xSPARCstation 2 Field Service Manual—February 1991

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