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Sun Ultra 2 Series ServiceManualPart No.: 802-2561-11Revision A, July 1998Sun Microsystems Computer CompanyA Sun Microsystems, Inc. Business901 San An

x Sun Ultra 2 Series Service Manual • July 1998

9-8 Sun Ultra 2 Series Service Manual • July 1996FIGURE 9-3 Removing and Replacing the CD-ROM Drive9.3.2 Replacing a CD-ROM Drive or 4-mm/8-mmTape Dri

Chapter 9 Storage Devices 9-9d. Connect the J5 power supply connector to the CD-ROM drive(or 4-mm/8-mm tape drive).e. Replace the SCSI cable assembly

9-10 Sun Ultra 2 Series Service Manual • July 19966. Remove the diskette drive as follows (FIGURE 9-4):a. Remove the diskette data cable assembly.See

Chapter 9 Storage Devices 9-119.4.2 Replacing a Diskette DriveCaution – Use proper ESD grounding techniques when handling components. Wearan antistat

9-12 Sun Ultra 2 Series Service Manual • July 1996

10-1CHAPTER10FSMotherboard and ComponentReplacementThis chapter describes how to remove and replace the Ultra 2 series motherboardand motherboard comp

10-2 Sun Ultra 2 Series Service Manual • July 1996Caution – Use proper ESD grounding techniques when handling components. Wearan antistatic wrist stra

Chapter 10 Motherboard and Component Replacement 10-3FIGURE 10-2 Removing a CPU Module10.1.2 Replacing a CPU ModuleCaution – Use proper ESD grounding

10-4 Sun Ultra 2 Series Service Manual • July 19967. With both hands, simultaneously turn and press the CPU module leversdownward to the fully horizon

Chapter 10 Motherboard and Component Replacement 10-56. Place the NVRAM/TOD and carrier on an antistatic surface.FIGURE 10-3 NVRAM/TOD Location10.2.2

xiFiguresFIGURE 1-1 Ultra 2 Series Desktop System 1-2FIGURE 1-2 Ultra Enterprise 2 Server 1-2FIGURE 1-3 System Unit Interior 1-7FIGURE 1-4 System Unit

10-6 Sun Ultra 2 Series Service Manual • July 199610.3 SBus CardTo remove and replace the SBus card, proceed as follows.Note – Illustrations supportin

Chapter 10 Motherboard and Component Replacement 10-7FIGURE 10-4 Removing an SBus Card6. Insert the extractor into the SBus card (FIGURE 10-5).7. Hol

10-8 Sun Ultra 2 Series Service Manual • July 1996FIGURE 10-5 Installing the Card Extractor10.3.2 Replacing an SBus CardCaution – Use proper ESD groun

Chapter 10 Motherboard and Component Replacement 10-94. If the SBus card being installed has backplate tabs, proceed as follows(FIGURE 10-6):a. Remov

10-10 Sun Ultra 2 Series Service Manual • July 1996FIGURE 10-7 Removing an SBus Card Extractor6. Holding the SBus card at an angle, insert the SBus ca

Chapter 10 Motherboard and Component Replacement 10-11FIGURE 10-8 Replacing an SBus Card10.4 UPA Graphics Card (Workstation Only)To remove and replac

10-12 Sun Ultra 2 Series Service Manual • July 19963. Remove the system unit cover.See Section 7.1 “Removing the System Unit Cover” on page 7-1.Cautio

Chapter 10 Motherboard and Component Replacement 10-13FIGURE 10-9 Preparing to Remove a UPA Graphics CardFIGURE 10-10 Removing a UPA Graphics Card10.

10-14 Sun Ultra 2 Series Service Manual • July 1996Note – If an Elite3D UPA graphics card is being installed into a system unit that isoperating with

Chapter 10 Motherboard and Component Replacement 10-1511. Power on the system unit.See Section 6.1 “Powering On the System Unit” on page 6-1.FIGURE 1

xii Sun Ultra 2 Series Service Manual • July 1998FIGURE 8-3 Removing and Replacing the SCSI Cable Assembly 8-7FIGURE 8-4 Removing and Replacing the Di

10-16 Sun Ultra 2 Series Service Manual • July 1996FIGURE 10-13 Securing a UPA Graphics Card into the Chassis10.5 DSIMMTo remove and replace a DSIMM,

Chapter 10 Motherboard and Component Replacement 10-17Note – The Ultra 2 system and server units must have four DSIMMs in group 0 forthe unit to boot

10-18 Sun Ultra 2 Series Service Manual • July 19964. Locate the DSIMM to be removed.5. Push the ejection lever away from the DSIMM (FIGURE 10-14).6.

Chapter 10 Motherboard and Component Replacement 10-192. Locate and select an available quartet of DSIMM slots on the motherboard.Note – Use only DSI

10-20 Sun Ultra 2 Series Service Manual • July 1996FIGURE 10-15 Incorrect and Correct Ways to Seat the DSIMM5. Detach the wrist strap.6. Replace the s

Chapter 10 Motherboard and Component Replacement 10-21Note – If the motherboard is being replaced, remove all DSIMMs and SBus card(s)prior to removin

10-22 Sun Ultra 2 Series Service Manual • July 1996a. Remove the following from the motherboard: All CPU modules (Section 10.1.1 “Removing a CPU Modu

Chapter 10 Motherboard and Component Replacement 10-23FIGURE 10-16 Removing a MotherboardCShroud assemblyMotherboardRear panelScrew (4)

10-24 Sun Ultra 2 Series Service Manual • July 199610.6.2 Replacing a MotherboardCaution – Use proper ESD grounding techniques when handling component

Chapter 10 Motherboard and Component Replacement 10-25 All DSIMMs (Section 10.5.2 “Replacing a DSIMM” on page 10-18). UPA graphics card (Section 10

xiiiFIGURE B-4 Fast/Wide SCSI Connector Pin Configuration B-6FIGURE B-5 Audio Port Connectors Jack Configuration B-9FIGURE B-6 Parallel Port Connector

10-26 Sun Ultra 2 Series Service Manual • July 1996

11-1CHAPTER11Illustrated Parts ListThis chapter lists the authorized replaceable parts for the Ultra 2 series system unitand the Ultra Enterprise 2 se

11-2 Sun Ultra 2 Series Service Manual • July 1996FIGURE 11-1 System Unit Exploded ViewTABLE 11-1 System Unit Replaceable ComponentsNumericalReference

Chapter 11 Illustrated Parts List 11-32 DSIMM 32-Mbyte DSIMM assembly2 DSIMM 64-Mbyte DSIMM assembly2 DSIMM 128-Mbyte DSIMM assembly3 Shroud assembly

11-4 Sun Ultra 2 Series Service Manual • July 199614 UPA graphics card SFB, UPA graphics card, 67 MHz14 UPA graphics card1DFB, UPA graphics card, 75 M

A-1APPENDIXAProduct SpecificationsThis appendix provides product specifications for the Ultra 2 series system (systemunit) and the Ultra Enterprise 2

A-2 Sun Ultra 2 Series Service Manual • July 1996A.2 Electrical SpecificationsThe following table lists the electrical specifications for the system/s

Appendix A Product Specifications A-3A.3 Environmental SpecificationsThe following table lists operating and non-operating environmental specification

A-4 Sun Ultra 2 Series Service Manual • July 1996

B-1APPENDIXBSignal DescriptionThis appendix provides signal descriptions for the Ultra 2 series system unit backpanel connectors. Section B.1 “Keyboa

xiv Sun Ultra 2 Series Service Manual • July 1998

B-2 Sun Ultra 2 Series Service Manual • July 1996FIGURE B-1 Keyboard/Mouse Connector Pin ConfigurationB.1.2 Serial Port Connector A and B (RS-423/RS-2

Appendix B Signal Description B-3FIGURE B-2 Serial Port A and B Connectors Pin ConfigurationTABLE B-2 Serial Port A and B Connectors Pin AssignmentsPi

B-4 Sun Ultra 2 Series Service Manual • July 19967 Gnd Signal Ground.8 DCD I Data carrier detect. Used by the DCEto indicate it is receiving a suitabl

Appendix B Signal Description B-5B.2 Twisted-Pair Ethernet ConnectorThe twisted-pair Ethernet (TPE) connector is an RJ-45 type connector located on th

B-6 Sun Ultra 2 Series Service Manual • July 1996B.3 Fast/Wide SCSI ConnectorThe fast/wide small computer system interface (SCSI) connector is located

Appendix B Signal Description B-743 Dat<3>_ Data 344 Dat<4>_ Data 445 Dat<5>_ Data 546 Dat<6>_ Data 647 Dat<7>_ Data 748

B-8 Sun Ultra 2 Series Service Manual • July 1996B.4 Audio Port ConnectorsThe audio port connectors are located on the motherboard back panel. These p

Appendix B Signal Description B-9FIGURE B-5 Audio Port Connectors Jack ConfigurationB.5 Parallel Port ConnectorThe parallel port connector is a DB-25

B-10 Sun Ultra 2 Series Service Manual • July 1996FIGURE B-6 Parallel Port Connector Pin ConfigurationTABLE B-6 Parallel Port Connector Pin Assignment

Appendix B Signal Description B-11B.6 Media Independent Interface ConnectorThe media independent interface (MII) connector (designated J2501) is locat

xvTablesTABLE P-1 Document Organization xixTABLE P-2 Typographic Conventions xxiTABLE P-3 Shell Prompts xxiTABLE P-4 Related Documentation xxiiTABLE P

B-12 Sun Ultra 2 Series Service Manual • July 1996FIGURE B-7 MII Connector Pin ConfigurationTABLE B-7 MII Connector Pin AssignmentsPin Signal Name Des

Appendix B Signal Description B-13B.7 UPA Graphics Card 13W3 ConnectorThe UPA graphics card 13W3 connector is located on the UPA graphics card. Thefol

B-14 Sun Ultra 2 Series Service Manual • July 19964 Gnd Ground5 Comp Sync O Composite Sync6 Horiz Sync O Horizontal Sync7 Serial Write Serial Write8 S

C-1APPENDIXCFunctional DescriptionThis section provides a functional description of the system unit or serverelectronics. Section C.1 “System Unit/Se

C-2 Sun Ultra 2 Series Service Manual • July 1996FIGURE C-1 System Unit or Server Functional Block Diagram144UPA data bus72576SBusSCSITPE/MIIParallelp

Appendix C Functional Description C-3C.1.1 UPAThe UPA is a cache-coherent processor-to-memory interconnect. A key advantage ofthe UPA processor-to-mem

C-4 Sun Ultra 2 Series Service Manual • July 1996Note – The PrestoServe™ 2.4.2 release is incompatible with the Solaris 2.5.1software environment when

Appendix C Functional Description C-5even in the presence of conditional branches and cache misses. This sustainedperformance is supported by a decoup

C-6 Sun Ultra 2 Series Service Manual • July 1996Characteristic memory performance includes a peak memory read bandwidth of 667Mbytes per second and a

Appendix C Functional Description C-7C.1.6 Graphics and Imaging (Workstation Only)The system unit takes advantage of UPA features to provide high perf

xvi Sun Ultra 2 Series Service Manual • July 1998TABLE 10-1 DSIMM Installation Location 10-17TABLE 11-1 System Unit Replaceable Components 11-2TABLE A

C-8 Sun Ultra 2 Series Service Manual • July 1996 Programmable gamma correction; four-color lookup tables help eliminate colorflashing within an 8-bi

Appendix C Functional Description C-9 Hard driveA small computer system interface (SCSI) and optional tape drive components;4-mm and 8-mm are also su

C-10 Sun Ultra 2 Series Service Manual • July 1996C.1.8 SCSIThe system unit or server provides a 20-Mbyte per second SCSI interface that issupported b

Appendix C Functional Description C-11 Supports 16 SCSI addresses: Targets 0 - 6 and targets 8 - F for devices Target 7 reserved for motherboard SC

C-12 Sun Ultra 2 Series Service Manual • July 1996C.1.9 Optional 4-mm and 8-mm Tape DrivesThe system unit or server supports the optional 4-mm and 8-m

Appendix C Functional Description C-13C.1.11 10BASE-T TPE Link TestThis section contains important information for getting your system to communicatec

C-14 Sun Ultra 2 Series Service Manual • July 1996FIGURE C-4 Host(s)-to-Hub Star Configuration LANHubHostUltra 2 Series (Host)HostHostHostHost

Appendix C Functional Description C-15FIGURE C-5 Ensuring a 10BASE-T Host-to-Hub Communication NetworkC.1.11.2 Technical DiscussionThe TPE link integr

C-16 Sun Ultra 2 Series Service Manual • July 1996The link test function at the host or hub is either enabled (link test enabled or 1) ordisabled (lin

Appendix C Functional Description C-172. At the ok prompt, type:Note – The above screen shows the current link test state (true, or enabled),followed

xviiCode SamplesCODE EXAMPLE 3-1 diag-level Variable Set to max 3-6CODE EXAMPLE 3-2 diag-level Variable Set to min 3-11CODE EXAMPLE 3-3 Typical Error

C-18 Sun Ultra 2 Series Service Manual • July 19964. Boot the host and verify that the transceiver cable problem messages do notappear. Type either bo

Appendix C Functional Description C-197. Open the Use Template menu, and select one of the following: Modem - Dial-Out Only Modem - Dial-In Only Mo

C-20 Sun Ultra 2 Series Service Manual • July 1996Modem Switch Settings (AT Commands) Enable transmit flow control (AT&H1) [suggested setting] (r

Appendix C Functional Description C-21Note – Specifications listed in TABLE C-3 assume that the audio tool format setting,“CD-ROM or DAT” is selected.

C-22 Sun Ultra 2 Series Service Manual • July 1996C.1.14.2 Built-in SpeakerThe system unit or server contains a cost-effective speaker. The speaker pr

Appendix C Functional Description C-23The following table lists each ASIC by name and provides characteristics of eachdevice.C.1.15.1 SC_MPThe multipr

C-24 Sun Ultra 2 Series Service Manual • July 1996C.1.15.2 SYSIOThe system I/O controller (SYSIO) ASIC bridges between the UPA and the SBus.The SYSIO

Appendix C Functional Description C-25C.1.15.5 FEPSThe fast Ethernet parallel port (FEPS) ASIC provides throughput for I/O devicesconnected to the Eth

C-26 Sun Ultra 2 Series Service Manual • July 1996C.1.15.6 SLAVIOThe slave I/O (SLAVIO) ASIC provides most of the Sunness I/O requirements. Itcontains

Appendix C Functional Description C-27Note – Power values listed in the following table translate to worse-case currentrequirements. Peak current requ

xviii Sun Ultra 2 Series Service Manual • July 1998

C-28 Sun Ultra 2 Series Service Manual • July 1996C.3 Power ManagementTo meet EPA Energy Star requirements, the system unit power consumption is lower

Appendix C Functional Description C-29FIGURE C-6 Ultra 2 Series Motherboard Block DiagramC.5 Jumper DescriptionJumper configurations can be changed by

C-30 Sun Ultra 2 Series Service Manual • July 1996FIGURE C-7 Selected Jumper SettingsThe jumper description includes a brief overview of serial port j

Appendix C Functional Description C-311. Power off the system unit.See Section 6.2 “Powering Off the System Unit” on page 6-2.2. Remove the system uni

C-32 Sun Ultra 2 Series Service Manual • July 1996Note – After reprogramming the system flash PROMs, verify that the flash PROMWrite Protect/Enable ju

Appendix C Functional Description C-33C.6 EnclosureThe Sun Ultra 2 series uses an enclosure that reflects style, ergonomics,serviceability, functional

C-34 Sun Ultra 2 Series Service Manual • July 1996C.7 Environmental ComplianceThe Ultra 2 series meets or exceeds the specifications defined by the “C

Glossary-1GlossaryADC Analog-to-digital converter. A device that translates analog signals to digitalsignals.address A number used by the system softw

Glossary-2 Sun Ultra 2 Series Service Manual • July 1996the number of events, or signal changes, that occur in 1 second. Because oneevent can actually

Glossary-3DAC Digital-to-analog converter. A mechanical or electronic device used to convertdiscrete digital numbers to continuous analog signals.data

xixPrefaceThe Sun Ultra 2 Series Service Manual provides detailed procedures that describe theremoval and replacement of replaceable parts in the Sun™

Glossary-4 Sun Ultra 2 Series Service Manual • July 1996Ethernet A type of network hardware that permits communications between systemsconnected direc

Glossary-5Modem Modulator/demodulator. A device that enables a machine or terminal toestablish a connection and transfer data through telephone lines.

Glossary-6 Sun Ultra 2 Series Service Manual • July 1996Slavio Slave I/O. Provides most of the Sunness I/O requirements. Contains serialports, floppy

Glossary-7VTSK VTS Kernel. Part of SunVTS. Controls all testing. Used to probe the hardwareconfiguration of the system and wait for instructions from

Glossary-8 Sun Ultra 2 Series Service Manual • July 1996

Index-1IndexNUMERICS4-mm tape driveremoving, 9-7replacing, 9-88-mm tape driveremoving, 9-7replacing, 9-8Aabout this book, xixadditionalkeyboard contro

Index-2 Sun Ultra 2 Series Service Manual • July 1998terminal, C-18connector pin assignmentsfast/wide SCSI connector, B-6keyboard connector, B-2MII co

Index-3Ggraphics, C-7card features, C-7card performance, C-8not supported, C-8Hhard drive, C-9failure, 4-3removing, 9-1replacing, 9-3supported, C-10ha

Index-4 Sun Ultra 2 Series Service Manual • July 1998removing, 10-21, 10-23replacing, 10-24mouseconnectivity, C-18connectorpin assignments, B-2pin con

Index-5pre-POST preparation, 3-2setting up tip connection, 3-2verifying baud rate, 3-4PrestoServe 2.4.2, C-4printer connectivity, C-20probeSCSI diagno

PleaseRecycle1997SunMicrosystems,Inc.,901SanAntonioRoad,PaloAlto,California94303-4900U.S.A.Allrightsreserved.Thisproductordocumentisprotectedbycopyrig

xx Sun Ultra 2 Series Service Manual • July 1998Chapter 7 Provides step-by-step procedures to remove the side access panel, attachthe wrist strap, and

Index-6 Sun Ultra 2 Series Service Manual • July 1998serial port A connectorpin assignments, B-3pin configuration, B-3signal description, B-1serial por

Index-7OBP on-board diagnostics, 4-10power supply, 4-4power-on failure, 4-1video output, 4-2UUltra2 series motherboard block diagram, C-292 series ove

Index-8 Sun Ultra 2 Series Service Manual • July 1998

xxiTypographic ConventionsShell PromptsTABLE P-2 Typographic ConventionsTypeface orSymbol Meaning ExamplesAaBbCc123 The names of commands, files,and d

xxii Sun Ultra 2 Series Service Manual • July 1998Related DocumentationTABLE P-4 Related DocumentationApplication Title Part NumberHandbook Solaris Ha

xxiiiOrdering Sun DocumentsSunDocsSMis a distribution program for Sun Microsystems technical documentation.Contact SunExpress for easy ordering and qu

xxiv Sun Ultra 2 Series Service Manual • July 1998Sun Welcomes Your CommentsWe are interested in improving our documentation and welcome your comments

1-1CHAPTER1Product Description1.1 Ultra 2 Series OverviewThe Ultra 2 series desktop workstation and the Ultra Enterprise 2 server aremulti-processor d

1-2 Sun Ultra 2 Series Service Manual • July 1996FIGURE 1-1 Ultra 2 Series Desktop SystemThe following figure illustrates the Ultra Enterprise 2 serve

Chapter 1 Product Description 1-31.2 I/O Devices (Ultra 2 Series Desktop)The Ultra 2 series desktop workstation uses the following I/O devices: Keyb

1-4 Sun Ultra 2 Series Service Manual • July 19961.3 System Unit FeaturesSystem unit components are located in a Sun Ultra 2 chassis. Overall chassisd

Chapter 1 Product Description 1-5 10-Megabits-per-second (Mbps)/100-Mbps twisted-pair Ethernet (TPE)networking 100-Mbps Media-Independent Interface

iiiContentsPreface xixHow This Book Is Organized xixTypographic Conventions xxiShell Prompts xxiRelated Documentation xxiiOrdering Sun Documents xxiii

1-6 Sun Ultra 2 Series Service Manual • July 1996CPU module 300-MHz CPU module (UltraSPARC-II),2-Mbyte external cacheModels 1300 and 2300onlyDSIMM 16-

Chapter 1 Product Description 1-7FIGURE 1-3 System Unit InteriorHard drive 4.2-Gbyte SCA, 7200 RPM, wide AllHard drive 9.1-Gbyte SCA, 7200 RPM, wide

1-8 Sun Ultra 2 Series Service Manual • July 1996FIGURE 1-4 System Unit Rear PanelSerial connector (2)RS-423/RS-232Power inletUPA slotSBus slot 2SBus

2-1CHAPTER2Sun VTSThis chapter contains an overview of the SunVTS+ diagnostic tool.This chapter contains the following topics: Section 2.1 “SunVTS De

2-2 Sun Ultra 2 Series Service Manual • July 19962.2 SunVTS OperationThe following table lists the documentation for the SunVTS software. Thesedocumen

3-1CHAPTER3Power-On Self-TestThis chapter contains procedures to initiate the power-on self-test (POST)diagnostics. Procedures are also included to su

3-2 Sun Ultra 2 Series Service Manual • July 1996level switch determines the POST function. The following table lists the diag-levelswitch settings fo

Chapter 3 Power-On Self-Test 3-31. See the following figure. Connect serial port A of the system being tested to serialport B of another Sun workstat

3-4 Sun Ultra 2 Series Service Manual • July 19965. When the POST is completed, disconnect the tip window as follows:Open a shell window.Type ps -a to

Chapter 3 Power-On Self-Test 3-51. At the system prompt, type:2. At the keyboard, power cycle the system unit by simultaneously pressing theShift key

iv Sun Ultra 2 Series Service Manual • July 19983.2 Pre-POST Preparation 3-23.2.1 Setting Up a Tip Connection 3-23.2.2 Verifying the Baud Rate 3-43.3

3-6 Sun Ultra 2 Series Service Manual • July 19963.4 Maximum and Minimum Levels ofPOSTTwo levels of POST are available: maximum (max) level and minimu

Chapter 3 Power-On Self-Test 3-7Master CPU onlineMaster Version: 0000.0000.2200.1040Slave Version: 0000.0000.2200.1040CPU E$(M) 0000.0000.0010.0000 (

3-8 Sun Ultra 2 Series Service Manual • July 19960> Found Memory Group #332Mb32Mb32Mb32Mb0> Found 640 Megabytes of usable Main Memory

Chapter 3 Power-On Self-Test 3-91> Data Cache Tags Test1>MMU Enable Test1> DMMU Registers Access Test1> DMMU TLB DATA RAM Access

3-10 Sun Ultra 2 Series Service Manual • July 19960> Mapping Selftest Enabling MMUs0> Clear Interrupt Map and State Registers0> SysI

Chapter 3 Power-On Self-Test 3-113.4.2 Diag-Level NVRAM Variable Set to minWhen the diag-level NVRAM parameter is set to min, POST enables an abbrevi

3-12 Sun Ultra 2 Series Service Manual • July 19963.5 POST Progress and Error ReportingWhile POST is initialized, the Caps Lock key on the Sun Type-5

Chapter 3 Power-On Self-Test 3-13Note – The system does not automatically boot if a POST error occurs; it halts at theok prompt to alert the user of

3-14 Sun Ultra 2 Series Service Manual • July 19963.6 Bypassing POSTPOST may be disabled and bypassed. To bypass POST:1. Prior to powering on the syst

Chapter 3 Power-On Self-Test 3-15Note – Press and hold the Stop key for approximately 5 seconds. Stop and N KeysTo set the system NVRAM parameters t

v5.3.1 Modification to Equipment 5-25.3.2 Placement of a Sun Product 5-25.3.3 Power Cord Connection 5-35.3.4 Electrostatic Discharge 5-35.3.5 Lithium

3-16 Sun Ultra 2 Series Service Manual • July 19962. At the keyboard, simultaneously press and hold the Stop and D keys and pressthe Power-on key.Note

4-1CHAPTER4Troubleshooting ProceduresThis chapter describes how to troubleshoot possible problems and includessuggested corrective actions. Section 4

4-2 Sun Ultra 2 Series Service Manual • July 1996the system unit powers on, no further action is required. If the system unit does notpower on, the ke

Chapter 4 Troubleshooting Procedures 4-34.3 Hard Drive or CD-ROM Drive FailureThis section provides hard drive and CD-ROM drive failure symptoms ands

4-4 Sun Ultra 2 Series Service Manual • July 1996● At the system prompt, type:If the drives respond and a message is displayed, the system SCSI contro

Chapter 4 Troubleshooting Procedures 4-5Note – The +3.0 VDC (A) that is listed in TABLE 4-2 is a programmable output from2.5 VDC to 3.5VDC. The 3.3 (

4-6 Sun Ultra 2 Series Service Manual • July 1996FIGURE 4-3 Power Supply Connector J3205TABLE 4-4 Power Supply Connector J3205 Pin AssignmentsPin Desc

Chapter 4 Troubleshooting Procedures 4-7FIGURE 4-4 Power Supply Connector J3206TABLE 4-5 Power Supply Connector J3206 Pin AssignmentsPin Description1

4-8 Sun Ultra 2 Series Service Manual • July 19964.5 DSIMM FailureAt times the operating system, diagnostic program, or POST may not display aDSIMM lo

Chapter 4 Troubleshooting Procedures 4-92 5 U0603/U0703 1 0x4000_0000 to 0x43ff_ffff (second dbl wd)3 6 U0404/U0504 0 0x6000_0000 to 0x63ff_ffff (fir

vi Sun Ultra 2 Series Service Manual • July 19989. Storage Devices 9-19.1 Hard Drive 9-19.1.1 Removing a Hard Drive 9-19.1.2 Replacing a Hard Drive 9-

4-10 Sun Ultra 2 Series Service Manual • July 1996Each group listed in the preceeding tables (Group 0, Group 1, Group 2, and Group 3,respectively) all

Chapter 4 Troubleshooting Procedures 4-11 Watch-Net Diagnostic—page 4-11 Watch-Net-All Diagnostic—page 4-12 Probe-SCSI and Probe-SCSI-All Diagnost

4-12 Sun Ultra 2 Series Service Manual • July 1996The watch-net diagnostic is initialized by typing the watch-net command at the okprompt. The followi

Chapter 4 Troubleshooting Procedures 4-134.6.4 Probe-SCSI and Probe-SCSI-All DiagnosticThe probe-SCSI diagnostic transmits an inquiry command to inte

4-14 Sun Ultra 2 Series Service Manual • July 19964.6.5 Test alias name, device path, -All DiagnosticThe test diagnostic, when combined with a device

Chapter 4 Troubleshooting Procedures 4-154.6.6 UPA Graphics Card DiagnosticThe ultra port architecture (UPA) graphics card diagnostic contains a buil

4-16 Sun Ultra 2 Series Service Manual • July 19962. At the ok prompt, type:3. When the UPA graphics card on-board diagnostics are completed, type:ok

5-1CHAPTER5Safety and Tool RequirementsThis chapter provides a description of safety requirements, symbols, safetyprecautions, and tools required for

5-2 Sun Ultra 2 Series Service Manual • July 1996Caution – Risk of personal injury and equipment damage. Follow the instructions.Caution – Hazardous v

Chapter 5 Safety and Tool Requirements 5-35.3.3 Power Cord ConnectionCaution – Not all power cords have the same current ratings. Household extension

vii10.5.1 Removing a DSIMM 10-1710.5.2 Replacing a DSIMM 10-1810.6 Motherboard 10-2010.6.1 Removing a Motherboard 10-2110.6.2 Replacing a Motherboard

5-4 Sun Ultra 2 Series Service Manual • July 19965.4 Tools RequiredThe following tools are required to service the Ultra 2 series desktop workstationa

6-1CHAPTER6Powering On and OffThis chapter contains procedures to power on and power off the Ultra 2 seriescomputer.This chapter contains the followin

6-2 Sun Ultra 2 Series Service Manual • July 1996FIGURE 6-1 Rear View of the System UnitFIGURE 6-2 Sun Type-5 Keyboard6.2 Powering Off the System Unit

Chapter 6 Powering On and Off 6-3To power off the system unit:1. Notify users that the system is going down.2. Back up system files and data.See the

6-4 Sun Ultra 2 Series Service Manual • July 1996

7-1CHAPTER7Internal AccessThis chapter describes how to access the Ultra 2 series computer for service.This chapter contains the following topics: Se

7-2 Sun Ultra 2 Series Service Manual • July 1996FIGURE 7-1 Location of Lock BlockFIGURE 7-2 Removing the System Unit CoverScrewLock blockTop cover ta

Chapter 7 Internal Access 7-37.2 Attaching the Wrist StrapCaution – Wear an antistatic wrist strap and use an ESD-protected mat whenhandling componen

7-4 Sun Ultra 2 Series Service Manual • July 19967.3 Replacing the System Unit Cover1. Hold the cover at a 30-degree angle to the system unit.2. Posit

8-1CHAPTER8Major SubassembliesThis chapter describes how to remove and replace the major subassemblies.This chapter contains the following topics: Se

viii Sun Ultra 2 Series Service Manual • July 1998C.1.6.1 Graphics Card Features C-7C.1.6.2 Graphics Card Performance C-8C.1.6.3 Graphics Not Supporte

8-2 Sun Ultra 2 Series Service Manual • July 1996Caution – The AC power cord must be disconnected while the power supply isbeing removed and replaced.

Chapter 8 Major Subassemblies 8-3FIGURE 8-1 Removing the Power Supply8.1.2 Replacing the Power SupplyCaution – Use proper ESD grounding techniques wh

8-4 Sun Ultra 2 Series Service Manual • July 19962. Push the power supply toward the chassis rear, engaging the mounting hooks.Note – Ensure that the

Chapter 8 Major Subassemblies 8-5FIGURE 8-2 Replacing the Power Supply8.2 Cable AssembliesTo remove and replace the SCSI cable assembly and the diske

8-6 Sun Ultra 2 Series Service Manual • July 19962. Remove the system unit cover.See Section 7.1 “Removing the System Unit Cover” on page 7-1.Caution

Chapter 8 Major Subassemblies 8-7FIGURE 8-3 Removing and Replacing the SCSI Cable Assembly8.2.2 Replacing the SCSI Cable AssemblyCaution – Use proper

8-8 Sun Ultra 2 Series Service Manual • July 1996b. Connect the following: P3 connector to J1203 on the motherboard. P1 connector to J1202 on the mo

Chapter 8 Major Subassemblies 8-9FIGURE 8-4 Removing and Replacing the Diskette Drive Cable Assembly8.2.4 Replacing the Diskette Drive Cable Assembly

8-10 Sun Ultra 2 Series Service Manual • July 1996 P2 connector to the rear of the diskette drive.2. Detach the wrist strap.3. Replace the system uni

Chapter 8 Major Subassemblies 8-11FIGURE 8-5 Shroud Assembly Removal8.3.2 Replacing the Shroud AssemblyCaution – Use proper ESD grounding techniques

ixC.1.15.1 SC_MP C-23C.1.15.2 SYSIO C-24C.1.15.3 BMX C-24C.1.15.4 RISC C-24C.1.15.5 FEPS C-25C.1.15.6 SLAVIO C-26C.1.15.7 CBT C-26C.2 Power Supply C-2

8-12 Sun Ultra 2 Series Service Manual • July 19963. Connect the speaker connections.4. Connect the fan connections.5. Detach the wrist strap.6. Repla

Chapter 8 Major Subassemblies 8-13FIGURE 8-6 Removing and Replacing the Shroud Assembly Speaker8.4.2 Replacing the Shroud Assembly SpeakerCaution – U

8-14 Sun Ultra 2 Series Service Manual • July 19965. Power on the system unit.See Section 6.1 “Powering On the System Unit” on page 6-1.

9-1CHAPTER9Storage DevicesThis chapter describes how to remove and replace the Ultra 2 series storage devices.This chapter contains the following topi

9-2 Sun Ultra 2 Series Service Manual • July 19964. Remove the EMI door.5. Remove a hard drive as follows (FIGURE 9-1):a. Open the hard drive handle.b

Chapter 9 Storage Devices 9-39.1.2 Replacing a Hard DriveNote – Use only hard drives that are specifically designed for a Sun Ultra 2 seriessystem. S

9-4 Sun Ultra 2 Series Service Manual • July 19969.2 Media Bay Chassis BracketTo remove and replace the media bay chassis bracket (chassis bracket), p

Chapter 9 Storage Devices 9-5g. Place the chassis bracket on an antistatic surface.FIGURE 9-2 Removing and Replacing the Chassis Bracket9.2.2 Replaci

9-6 Sun Ultra 2 Series Service Manual • July 1996b. Connect the following if present: SCSI cable to the CD-ROM drive or 4-mm or 8-mm tape drive. Dis

Chapter 9 Storage Devices 9-79.3.1 Removing a CD-ROM Drive or 4-mm/8-mmTape Drive1. Power off the system unit.See Section 6.2 “Powering Off the Syste