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SPARCstation 2 Field Service Manual

1. Main logic board Figure 4 2 Boards and Modules continued FRU Replacement 45 Single Inline Memory Modules SIMMs SPARC station 2 system units are equipped with a minimum of 16 megabytes of random access memory RAM Physically RAM chips are grouped together in single inline memory modules SIMMs Each SIMM contains 4 megabytes of memory and plugs into a SIMM slot located on the main logic board of the system unit Additional SIMMs may be added to the system unit as needed in 16 megabyte increments up to a maximum of 16 SIMMs 64 megabytes Determining Faulty SIMM Locations 46 SunOS Sundiag System Exerciser SunDiagnostic Executive and POST diagnostics can report memory errors encountered during program execution Memory error messages on the system monitor display usually include a physical memory address of the error Depending on the diagnostic program you are running and the SunOS release loaded a SIMM location number U number may be displayed If the location number is present in the error message follow the instructions later in this chapter for removing the defective SIMM at that location and installing a replacement see Figure 4 7 for SIMM location numbers If the location number is not displayed but a physical memory address is shown
2. an el Tem s el Tel un aal 7 SS self test EP enable parity WP enable wait spin Empty slot ao SCSI device Al address A2 Figure 4 10 Hard Disk Drive with 6 Jumpers Jumper Setting for Drive 1 1 I en sl LLL LI LLL LI AO A1 A2 SCSI device address EP enable parity WP disable wait spin jumpers not labeled on drive Figure 4 11 Hard Disk Drive with 5 Jumpers Jumper Setting for Drive 1 SPARG station 2 Field Service Manual February 1991 F1 SS self test pa EP enable parity a WP enable wait spin O O Empty slot CJR AO SCSI device address A D 2 XC f A2 1 N Figure 4 12 Hard Disk Drive with 6 Jumpers Jumper Setting for Drive 2
3. mi CRJ AO O SCSI device d S _ Al address N R D Cope EP enable parity C WP disable wait spin h jumpers not labeled on drive Figure 4 13 Hard Disk Drive with 5 Jumpers Jumper Setting for Drive 2 FRU Replacement 65 66 To replace a hard disk drive 1 Make sure you have followed the previous procedure on preparing the hard disk drive for replacement Lower the drive into the chassis and align the four mounting tabs on the bottom of the drive mounting bracket with the slots in the bottom of the chassis see Figure 4 14 The drive unit s data and power cables should be facing the rear of the chassis Slide the drive forward toward the front of the chassis until the two rear locking tabs click into their slots Connect the data and power cables to the main logic board see Figure 4 15 The data cable plugs into the data connector on the main logic board The data cable is keyed so that it will fit only one way The power cable plugs into the power connector on the main logic board The power connector is keyed so that it will fit only one way Replace the system unit s top cover See Replacing the System Unit s Cover near the end of this chapter Turn the system unit s power on and check for proper operation of the system unit and the replaced hard disk driv
4. YO aoe Rotate tool in this direction only Rotate tool in this direction only Figure 4 4 Inserting the SIMM Extraction Tool 7 10 11 Rotate the tool in a sideways motion prying the side of the SIMM upward You will hear a click when the SIMM has disengaged from the slot With the tool still in the hole continue to lift the side of the SIMM until the edge clears the slot Remove the tool Grasp the SIMM by the left and right edges and continue to lift straight up until the module is free of the slot Take note of the slot numbers you are extracting the SIMMs from See Figure 4 5 for final removal of a SIMM FRU Replacement 49 50 SIMM slot Peg top view Peg Figure 4 5 Final Manual Removal of a SIMM To install a SIMM follow these steps If you have removed a SIMM because it was defective install the replacement SIMM into the same slot from which the defective one was removed You must install the SIMMs in unoccupied slots so that the slots are filled by banks For example you have removed the SIMM from slot U0320 from bank 2 You need to replace the SIMM in slot U0320 from bank 2 so that all slots in bank 2 are filled There should be SIMMs in slot U0313 U0314 and U0315 to begin with so all four slots in bank 2 are filled Table 4 1 identifies memory bank
5. U0311 G z U0322 U0312 7 U0321 U0313 E z U0320 U0319 z U0316 U0309 G z U0307 U0310 E 7 U0308 U0314 G z U0315 U0318 E z U0317 Hard drive s Figure 2 5 SIMM Slot Locations on Main Logic Board Table 2 2 Table of Memory Banks Bank Slots 0 U0311 U0322 U0309 U0307 1 U0312 U0321 U0310 U0308 2 U0313 U0320 U0314 U0315 3 U0319 U0316 U0318 U0317 Note Slots U0310 U0314 and U0318 are not identified on the board with any visible markings These slots are shown in Figure 2 5 andTable 2 2 in parentheses 28 SPARG station 2 Field Service Manual February 1991 For further information about replacing the FRUs that fail see Removing and Replacing FRUs in Chapter 4 If all POST tests pass run the SunDiagnostic Executive with the cache disabled The SunDiagnostic Executive is an independent operating system It runs exhaustive subsystem tests independent of SunOS See the latest version of SunDiagnostic Executive User s Guide for the SPARCstations On Board Diagnostics N You have access to a number of tests called On board diagnostics To invoke these tests you must enter the Forth Toolkit Caution In order to run On board diagnostics you must halt the system in an orderly manner When the operating system or any other stand alone program has already booted do not use the L1 A keys to halt the
6. Top View of System Unit s Internal Parts Serial Port Jumpers sehrsa ta E E EEE EE Preset RS 423 Jumper Positions nananana aeaaeae RS 232 Jumper Positions Pin Location of Power Supply Connector J0701 Main Logic Board Layout nasasa 6 cece cece eee ee Removing and Replacing the Main Logic Board Replacing the System Unit s Cover Figure B 1 System Interconnection 6000 e cece eee eee SPARCstation 2 Field Service Manual February 1991 49 50 51 52 53 60 64 64 65 65 67 68 70 72 74 75 77 78 78 79 80 81 92 99 Figure B 2 Exploded View of the System Unit 2004 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 Figures ix SPARG station 2 Field Service Manual February 1991 Tables Table 1 1 Table 1 2 Table 1 3 Table 2 1 Table 2 2 Table 4 1 Table 4 2 Table 4 3 Table 4 4 Table A 1 Table A 2 Table A 3 Table A 4 Table B 1 Table C 1 Main Logic Board Parts Layout Legend 5 Llastof Acronyms cies pee e ete e ee ed 6 Video Monitor Types 6 cece eee ees 17 Summary of Available Diagnostic Tool 23 Table of Memory Banks 0 60 28 Table of Memory Banks 6 52 Table of Hard Disk ID Jumper Settings 62 Main Logic Board
7. 18 SPARG station 2 Field Service Manual February 1991 Diagnostics Overview This chapter describes the different types of diagnostic firmware and software tools available to you and how they are related The main categories of diagnostics are Boot PROM diagnostics Power On Self Test POST On Board Diagnostics Sundiag System Exerciser SunDiagnostic Executive Besides these categories of diagnostics this chapter briefly covers the Forth Toolkit which is an interactive command interpreter based on the Forth programming language For a more complete discussion of the Sun Forth Toolkit see the Open Boot PROM 2 0 Toolkit User s Guide The Forth Toolkit gives you access to an extensive set of functions for performing the following Hardware development Problem determination fault isolation Software development Debugging All functions available through the Monitor gt prompt except entering the Forth Toolkit are also available through the Forth Toolkit 19 The flowchart in Figure 2 1 outlines the roles played by various diagnostics during the default boot mode Power on switch Low level post Display errors on keyboard LEDs Probe SBus devices and interpret their drivers L1 A High level tests You will to get to h r ok prom see Testing when these ME or oe prampr tests are run Auto boot b command at Yes default prompt o
8. cat vmunix gt dev audioThe system plays back garbage which is louder Press Control C to abort the message 10 Replace the speaker assembly as directed in the following procedures if either of the sound tests fail If either of the sound tests pass do not replace the speaker Replace the LED speaker assembly or the main logic board only if the LED does not light see step 3 96 SPARC station 2 Field Service Manual February 1991 To remove the speaker follow these steps 1 10 11 12 13 14 Read the parts of Chapter 3 about how to halt your system tools needed removing expansion units attaching a wrist strap and removing the system unit s cover Check that the green LED at the front of the chassis is not lit Check that the fans are not running Check that the system s power cord remains connected to the system and the wall outlet Locate the speaker assembly and its 4 pin connector J0602 at the front right corner of the main logic board see Figure 4 25 Unplug the 4 pin connector from the main logic board Push the spring loaded clip on the speaker clip Slide it forward and lift out the speaker assembly and the attached speaker clip Pull the LED out of its mounting clip To replace the speaker follow these steps Push the replacement LED into the mounting clip Slide the speaker assembly and the attached speaker clip into its catch and push it down
9. Plug the 4 pin connector onto the J0602 connector on the main logic board The connector is keyed so it will fit only one way Replace the system unit s top cover See Replacing the System Unit s Cover later in this chapter Turn the system unit s power on and check for proper operation of the system unit and the replaced speaker See How to Turn the Power Back On towards the end of this chapter FRU Replacement 97 Replacing the System Unit s Cover 98 N To replace the system unit s cover 1 Hold the cover at an angle of approximately 30 degrees in relation to the system unit chassis with the front end down and the back end up 2 Gently guide the plastic tabs on the front of the cover into the tab slots on the front of the chassis see Figure 4 27 Continue to hold the cover with your hands Caution Holding the cover at angles greater than 30 degrees can prevent insertion of the tabs into the tab slots Once the tabs are in the slots raising the cover to angles greater than 30 degrees can break the tabs 3 Slowly lower the cover onto the chassis and be sure the security loop clears the diskette drive if equipped and seats into the security loop slot on the bottom of the chassis 4 Insert the two screws that hold the top cover to the back panel 5 Tighten the two screws with a screwdriver SPARG station 2 Field Service Manual February 1991 Security loop Plastic tabs In
10. To interrupt the boot sequence press L1 A on the system keyboard The default prompt is the gt prompt You can reset the default prompt to bethe ok prompt To make the default prompt the ok prompt see the Open Boot PROM 2 0 Toolkit User s Guide If you see the ok prompt go to step 15 If you see the gt prompt go to the next step Atthe gt prompt enter n This enters the Forth Toolkit and displays its ok prompt Use the commands shown below to set the diagnostic switch to true set the autoboot switch to false and reset the system ok setenv diag switch true ok setenv auto boot false ok reset the system is rebooted and POST is run 18 As POST tests run view the results on the keyboard LEDs located on the upper right corner of your keyboard Figure 2 4 shows the meaning of the LED display pattern If all POST tests pass go to the next step If one or more of the following POST tests fails take one of the following actions If the PROM fails replace the boot PROM See Boot PROM later in this chapter If you replace the Boot PROM and re run the POST and the PROM test fails again a component between the CPU and the boot PROM on the main logic board is defective Reinstall the original boot PROM See Boot PROM later in this chapter Remove and replace the main logic board See Removing the Main Logic Board and Replacing the Main Logic Board later in this chapter If a SIMM fails the slot numbe
11. the system via a 12 pin connector and provides 5 12 and 12 volts DC Voltages are regulated The power supply also supplies the power on reset signal Some of the power supply s features include the following Switching power supply Overcurrent protection Crowbar feature Internal fusing The External drive units have their own power supplies The External Storage Module s power supply provides 5 12 and 12 volts DC The Desktop Storage Pack s power supply provides 5 and 12 volts DC SPARG station 2 Field Service Manual February 1991 Monitors Each system accepts a keyboard an optical mouse and one of several types of video monitors See Appendix C for the available monitors See Table 1 3 for the supported monitors Table 1 3 Video Monitor Types Monitor Type 16 inch color monitor 407 mm 16 inch color monitor 407 mm 19 inch standard grayscale monitor 483 mm 19 inch high resolution monochrome monitor 483 mm 19 inch high resolution monochrome monitor 483 mm 17 inch grayscale 432 mm 19 inch Sony color monitor 483 mm 19 inch Sony color monitor 483 mm 16 inch color overscan monitor 407 mm 19 inch color overscan monitor 483 mm 17 inch grayscale overscan monitor 432 mm 19 inch grayscale overscan monitor 483 mm Voltage 115 V 240 V 90 240 V 115 V 240 V 90 240 V 115 V 240 V 90 240 V 90 240 V 90 240 V 90 240 V System Overview 17
12. 14 H halt command 34 halting the system 33 hard disk drive 3 15 60 preparing 62 removing 61 replacing 66 hung system 35 I input power requirements 104 input output 11 integer unit 9 interior system unit 3 IU 9 K keyboard replacing 100 keyboard LED 24 keyboard LED diagnostic code 26 keyboard port 13 L LANCE I I LANCE controller chip 11 LED 95 lithium battery 94 M main chassis 1 main logic board 4 8 75 preparing for replacement 89 removing 88 replacing 90 127 128 test points 79 troubleshooting 83 mass storage devices 15 memory cache 9 memory bank 28 memory management unit 10 MMU 10 Monitor 31 monitor 17 monitors replacing 100 mouse replacing 100 N non volatile RAM 3 12 NVRAM 3 12 94 NVRAM parameter 117 NVRAM TOD removing 94 replacing 94 O on board diagnostics 29 P physical specifications 105 port keyboard 13 ports serial ports A and B 13 POST 21 24 power turning off 34 35 power supply 3 16 58 removing 58 replacing 59 powering on the system 100 Power On Self Test 21 24 R regulatory compliance information 103 related books XV replacing FRUs tools needed 36 S SBus board installing 56 removing 55 SBus boards 10 14 54 SBus boards and cards 14 SBus Printer Board 15 55 SBus slots 10 SCSI controller chip 11 Second Ethernet board 55 serial port jumpers 76 serial ports A and B 13 SIMM locations faulty determin
13. 25 and 4 26 Remove the NVRAM TOD chip To do this use an IC extractor or a small flat bladed screwdriver and remove the NVRAM TOD chip from its socket slowly and evenly SPARG station 2 Field Service Manual February 1991 Speaker N 8 Insert the new NVRAM TOD chip in the socket To do this match the pin 1 indicator on the NVRAM TOD chip with the indicator on the socket Holding the NVRAM TOD chip at the edges carefully align the pins and insert the NVRAM TOD chip in the socket Note that inserting the chip backwards will damage the chip 9 Replace the system unit s cover To do this see Replacing the System Unit s Cover towards the end of this chapter Re run the POST test again to determine if the new NVRAM TOD chip solved the problem See Before Replacing the Main Logic Board earlier in this chapter Warning There is a lithium battery molded into the Mostek real time clock No MK48T02BU or No MK48T02B XX where X may be any number from 1 9 It is located on the main logic board of the system unit next to the boot PROM The battery may explode if mistreated Do not disassemble it or attempt to recharge it The speaker is mounted at the front of the system on the right hand side see Figure 4 1 There are two parts to the speaker the LED speaker assembly and the speaker clip See Appendix B Illustrated Parts Breakdown for an illustration of the speaker parts To test if the speaker assembly nee
14. Diagnostic Tool Power On Self Test On Board Diagnostics Sundiag System Exerciser SunDiagnostic Executive Monitor Forth Toolkit When or why to use Executes automatically at power on The POST code resides in the boot PROM and is driven by the Por signal from the power supply POST tells you if the major hardware components of the main logic board the frame buffer and the hard disk fails Described later in this chapter Test such as the Ethernet test and the diskette drive controller test are available You must be in the Forth Toolkit to run on board diagnostics Enter n from the prompt to enter the Forth Toolkit The On Board diagnostics reside in the boot PROM Described later in this chapter Runs under SunOS It displays real time use of the system resources and peripherals The Sundiag System Exerciser tells you if your system is functioning correctly or not If Sundiag fails run the Power On Self Test If all power on self tests pass then run the SunDiagnostic Executive to identify the problem See the Sundiag User s Guide for more information Runs extensive configurable subsystem tests independent of SunOS Run the SunDiagnostic Executive if all tests pass when you run POST Running the SunDiagnostic Executive allows you to troubleshoot which field replaceable unit needs to be replaced See the latest version of SunDiagnostic Executive User s Guide for the SPARCstations for more information Enters the Mo
15. Mr ML DR AL ICE ES SN IR e 9 SBUS SIGS coo Do du inane Vete teh pO Es or PES 10 Memory Management Unit 020000 10 SX DIVA oe Vu E EC A RH RR 11 Dynamic RAM uci iui ta aad E ENT EEE 11 Input Outpul oido s Med chek es S ee e 11 Eight Bit Devices ossa er e ERES E 12 Single Inline Memory Modules SIMMs 14 SBMS BOATS S no sees 14 Mass Storage Dey 1ceSeh a5 Sacer e we eo ovg is 15 Power Supple see eee Ue VE Lee 16 iii M OTDHItOTS nro va i beso Au a a AE 17 2 Diagnostics Overview occu weet i wees deis Ey dedos isa 19 How Fits 105 he icio quote tes e be eerie eg 21 When to Use DIAEnOoSUCS oes eremo a eee ee eon oe ds 22 Boot PROM Diagnostics 4 SMG RLU EEO EAE te te he paket 24 Power On Self Test POST lulusesseess 24 On Board Diagnostics 24 anced ko tote ek Var ithe saws 29 Sundiag System BxerelSeto sss dep es eee bl tete ads 30 SunDiagnostic EXecUTIVe sas RERO eee E Aq et 31 Monitor and Forth Toolkit dk htt tr RR Eee des 31 3 Preparing to Work on the System 0 0005 33 Haltine th System ia e RR eget da e taste t id 33 Tools Needed a tee SOS PSS Na ae er X e d eas 36 Disconnecting Desktop Storage Packs 36 Disconnecting External Storage Modules 36 Removing the System Unit s Cover 005 37 Attaching a Wrist Strap n vex iex ROO OO Ceci e WR ER 39 4 FRU R placemento seie ae ASS 41 Before
16. Programmable Read Only Memory RAM Random Access Memory SCSI Small Computer System Interface SIMM Single Inline Memory Module Caution Printed circuit boards are made of delicate electronic components that are extremely sensitive to static electricity Ordinary amounts of static from your clothes or work environment can destroy the boards Handle boards only by the non conducting edges Do not touch components themselves or any metal parts Always wear a grounding strap when handling the boards Do not disconnect the power cord from the system unit s power outlet This connection provides the ground path necessary to safely remove and install the boards Make sure that the system unit s power is turned off by checking to make sure that the green light emitting diode LED at the front of the chassis is not lit and that the fans are not running Before Replacing the Main Logic Board This section explains with steps to perform before removing and replacing the main logic board Removing and replacing the main logic board is a drastic step to take Therefore it is important to try to troubleshoot all other possibilities before removing and replacing the main logic board FRU Replacement 83 84 N To check for and eliminate other possible problems before you replace the main logic board 1 10 Read the parts of Chapter 3 about how to halt your system tools needed removing expansion units removing the syste
17. RAM SCSI Ctrl SCSI Controller SIMM Single Inline Memory Module J0401 Hard Drive 2 SCSI cable connector J0402 Hard Drive 1 SCSI cable connector J0403 SCSI port J0404 Ethernet port J0501 Diskette Drive data cable connector J0502 Serial Port A J0503 Serial Port B J0504 Keyboard cable connector JO601 Audio Input Output cable connector J0602 System Speaker and LED connector JO701 Power Supply connector J0702 Hard Drive 2 power connector J0703 Hard Drive 1 power connector J0704 Diskette drive power connector J0705 Memory SBus expansion connector System Overview 5 Table 1 2 List of Acronyms Acronyms Full Expression DMA Direct Memory Access MMU Memory Management Unit NVRAM Non Volatile Random Access Memory PROM Programmable Read Only Memory RAM Random Access Memory SCSI Small Computer System Interface SIMM Single Inline Memory Module SPARG station 2 Field Service Manual February 1991 SPARC SPARC me S4 MMU SIA FPU IU Mi m Y Y bos PAG ion Ethernet SCSI 24 id da Cache Cache S4 DMA data data SBus address SBus data Ir U Buffer Serial
18. Self Test The POST runs automatically when you turn on the system s power switch or reboot the system The POST stored in the boot PROM is a series of rudimentary tests designed to verify that a viable boot path exists for loading more extensive diagnostic software such as the Diagnostic Executive Any board with electronic wiring etched on it Programmable Read Only Memory Random Access Memory Read Only Memory A printed circuit board installed in an SBus slot of the system unit An internal metal loop used in conjunction with the lock block to provide protection from unwanted system access Serial Communications Controller Small Computer System Interface Serial Interface Adapter SPARCstation2 Field Service Manual February 1991 SIMM SunDiagnostic Executive Sundiag System Exerciser system Monitor terminal TOD UART VRAM wrist strap Single Inline Memory Module This is a small printed circuit board that contains RAM chips An independent operating system running exhaustive subsystem tests independent of SunOS Use the SunDiagnostic Executive after you have run POST and need to troubleshoot which FRU needs to be replaced Diagnostic software that runs under SunOS displays real time use of system resources and peripheral equipment such as Desktop Storage Packs and External Storage Modules See Monitor 1 or 2 A device that consists of a video display and keyboard that is used to ty
19. SunCD Pack 8 15 determining faulty SIMM locations 46 determining which FRU needs to be replaced 31 devices eight bit 12 Diagnostic Executive 21 31 diagnostic tools overview 21 summary 22 diagnostics boot PROM 24 determining defective FRUs 31 on board 29 overview 21 when to use 22 diagram block SPARCstation 2 2 disk drive 15 60 preparing 62 removing 61 replacing 66 diskette drive 3 16 68 controller 13 controller chip 11 removing 69 replacing 71 DMA 11 DRAM 11 drive disk preparing 62 removing 61 replacing 66 diskette removing 69 replaciing 71 units 8 DSP disconnecting 36 dynamic RAM 11 E eight bit devices 12 environmental requirements 104 ESM disconnecting 36 Ethernet 11 board 14 controller chip 11 expansion modules 8 15 disconnecting 36 expansion units 8 15 external drive units 8 External Storage Module 15 SPARCstation 2 Field Service Manual February 1991 connecting 09 disconnecting 36 F fan assembly 72 removing 73 replacing 74 field replaceable units identification 42 replacement 41 field replaceable units boards and module 42 floating point coprocessor 3 floating point unit 9 floppy disk drive 16 68 controller 13 controller chip 11 removing 69 replacing 71 Forth Toolkit 31 FPU 9 Frame Buffer Board 14 frozen system 35 FRU identification 42 replacement 41 G graphics I O devices 17 GS Graphics Accelerator Board 15 55 GX Graphics Accelerator Board
20. Tail Mouse pad 7 x7 3 4 200D Video Cable 4 ft 1 2 m Hard Disk Drive Data Cable Diskette Drive Data Cable Hard Disk Drive Power Cable Video Cable 14 8 ft 4 5 m Fan Diskette Drive Power Cable Y Power Cable SPARG station 2 Field Service Manual February 1991 Open Boot PROM Open Boot PROM This appendix contains the Table of Alias and Boot Paths and the Non Volatile Random Access Memory NVRAM parameters used during reset In comparison with the SPARCstation 1 and the SPARCstation IPC the SPARC station 2 has different boot paths See Table D 1 for details Table D 2 shows the value and default value for each of the NVRAM parameter 115 Table D 1 Table of Alias and Boot Paths Alias SPARCstation 2 SPARCstation 1 Boot paths and IPC Boot Paths diskO sbus esp sd 3 0 sd 0 0 0 disk1 sbus esp sd 1 0 sd 0 1 0 disk2 sbus esp sd 2 0 sd 0 2 0 disk3 sbus esp sd 0 0 sd 0 3 0 tape0 sbus esp st 4 0 st 0 0 0 tapel sbus esp st 5 0 st 0 1 0 cdrom sbus esp sd 6 0 c sd 0 6 2 net sbus le le 116 SPARCstation 2 Field Service Manual February 1991 Table D 1 Table of NVRAM Parameters NVRAM Parameter Name Value Default Value name options options selftest megs 1 oem logo oem logo false false oem banner oem banner false false output device screen screen input device keyboard keyboard sbus probe list 0123 0123 scsi initiator id 7 7 keyboard click false false keymap
21. in Figure 4 2 Caution Printed circuit boards are made of delicate electronic components that are extremely sensitive to static electricity Ordinary amounts of static from your clothes or work environment can destroy the boards Handle boards only by the non conducting edges Do not touch the components themselves or any metal parts Wear a grounding strap when handling the boards SPARC station 2 Field Service Manual February 1991 Do not disconnect the power cord from the system unit s power outlet or from the wall socket This connection provides the ground path necessary to safely remove and install the printed circuit boards and components Make sure that the system unit s power is turned off by checking to make sure that the green light emitting diode LED at the front of the chassis is not lit and the fans are not running Boot Lithium Serial port PROM battery jumpers Back panel N 00000000 2000000 O0 00000 pa SPARC floating _ H n point unit FPU E SPARC integer 11 D unit IU IU Power SBus slots supply SIMM SIMM Cache slots slots controller Hard Hard drive drive be ce O ess o OA L t 2 2 Front bere Fan System assembly speaker Figu
22. input output devices to physical memory addresses This is how virtual memory is implemented Virtual memory allows a user program to have access to an address space that is larger than the physical memory present on the system In addition it isolates the address space of one process from that of another preventing errors in a user level program from bringing the entire system down It also controls the protections read only or read write associated with each page of memory allowing for example one copy of a shared library to be used by many running programs SPARG station 2 Field Service Manual February 1991 S4 DMA Ethernet is controlled by a Local Area Network Controller for Ethernet LANCE controller chip see Figures 1 3 and 1 4 It interfaces to the SBus through the 54 DMA chip SCSI disk drive operations are handled through the SCSI controller chip It also interfaces to the SBus through the 54 DMA chip Dynamic RAM Input Output The Dynamic RAM DRAM is comprised of the following One 4 RAM chip illustrated in Figures 1 3 and 1 4 16 Single Inline Memory Module SIMM slots for 4 MB SIMMs in groups of 4 See Single Inline Memory Modules SIMMS in Chapter 4 and Installing SPARCstation 2 SIMMs for information on how to install SIMMS The following chips which control input output devices are briefly discussed in this section Ethernet LANCE controller chip SCSI controller chip Disk
23. panel 56 SPARC station 2 Field Service Manual February 1991 board retainer The SBus board retainer is not a handle Pressing down on it Caution When replacing the SBus board do not press down on the SBus may break the retainer Press on corners of board Do not press on plastic SBus board retainer SBus board retainer Holes that receive mounting plate hooks SBus slot 1 SBus slot 2 SBus slot 3 2 Push the SBus board against the back panel Align the plug with the socket of the SBus slot and gently press the plug into the socket by pressing with your fingers on the corners of the SBus board j Caution Using excessive force may bend or damage the pins 3 Replace the top cover of the system unit To do this see Replacing the System Unit s Cover near the end of this chapter 4 Replace the external cables to the SBus boards FRU Replacement 57 Power Supply 58 5 Turn the system unit s power on and check for proper operation of the system unit and the replaced SBus board See How to Turn the Power Back On at the end of this chapter The power supply is a self contained metal assembly located just behind the diskette drive see Figure 4 9 The recess in the bottom of the chassis is for the fan that is built into the power supply The power supply is held in place by two guides in the bottom of the chassis two tabs that mate with two slots in the bottom of the pow
24. refer to the following table to locate the SIMM bank in which the defective SIMM is installed SPARG station 2 Field Service Manual February 1991 Bank Physical Address Range Byte Bits SIMM 0 000000 ffffff 0 31 24 U031 1 1 23 16 U0309 2 15 8 U0307 3 7 0 U0322 1 1000000 1ffffff 0 31 24 U0312 1 23 16 U0310 2 15 8 U0308 3 7 0 U0321 2 2000000 2ffffff 0 31 24 U0313 1 23 16 U0314 2 15 8 U0315 3 7 0 U0320 3 3000000 3ftfffff 0 31 24 U0319 1 23 16 U318 2 15 8 U0317 3 7 0 U0316 Bits Bits Bits Bits 31 24 23 16 15 amp Leg 0 Byte 0 Byte 1 Byte 2 Byte 3 For example if an error is detected at physical memory address 12fe958 the defective SIMM is located in bank 1 If you also know the failing byte at that address the table shows the U number location of the failing SIMM Follow the instructions later in this chapter for removing the defective SIMM at that location and installing a replacement see Figure 4 7 for SIMM location numbers FRU Replacement 47 48 Caution SIMMs are made of delicate electronic components that are extremely sensitive to static electricity Ordinary amounts of static from your clothes or work environment can destroy the modules Handle boards only by the edges Do not touch components themselves or any metal parts Always wear a grounding strap when handling the modules Do not disconnect th
25. related This chapter also briefly discusses the Forth Toolkit Read this chapter to gain general knowledge about the diagnostic and Forth Toolkit tools available to you xiii Preparing to Work on the System Chapter 3 This chapter explains how to halt the system tools you will need how to disconnect the Desktop Storage Pack and the External Storage Module from the system unit how to remove the system unit s top cover and how to attach a wrist strap to your wrist and to the system chassis Read this chapter before replacing any hardware FRU Replacement Chapter 4 This chapter explains how to locate remove and replace defective field replaceable units FRUs or install new ones Drawings and callouts are provided to illustrate the process Read this chapter before attempting to replace any hardware System Specifications Appendix A This appendix contains system specifications including dimensions electrical and power requirements environmental constraints and compliance with various electrical and safety regulations Illustrated Parts Breakdown Appendix B This appendix contains illustrations of global views of the system FRU list Appendix C This appendix contains the FRU list for SPARCstation 2 OpenBoot PROM Appendix D This appendix contains the Alias and Boot Paths table and the Non Volatile Random Access Memory NVRAM parameters used during reset These parameters control the system configurat
26. slots mb Hard i Hard drive drive Diskette 1 MN 2 drive De SO a D o M F ront pane Fan System assembly speaker Figure 4 6 Location of SIMM Slots in System Unit FRU Replacement 51 52 SBus slots U0311 3 U0312 U0313 U0319 U0309 U0310 hj he Ad pn P fe n U0314 HM eS iW pH DM NM IS Lm mm iy ph mM NM JS ha f n pj p pj ow T U0318 Hard drive s i Figure 4 7 SIMM Slot Location on Main Logic Board Table 4 1 Table of Memory Banks Bank Slots 0 U0311 U0322 U0309 U0307 1 U0312 U0321 U0310 U0308 2 U0313 U0320 U0314 U0315 3 U0319 U0316 U0318 U0317 U0322 U0321 U0320 U0316 U0307 U0308 U0315 U0317 Note Slots U0310 U0314 and U0318 are not identified on the board with any visible markings These slots are shown in Figure 4 7 andTable 4 1 in parentheses SPARCstation 2 Field Service Manual February 1991 10 Place an anti static mat shiny side up next to the system unit The mat comes with your SIMMs Make sure the wrist strap is securely attached to your wrist and the metal casing of the power supply See Chapter 3 for instructions on how to attach a wrist strap Open the anti static container and take out the SIMMs Place the SIMMs on the anti static mat Figure 4 8 shows typical SIMM EETEE
27. system Figure B 1 illustrates system interconnection Table B 1 gives part numbers of the system components Figure B 2 shows exploded view of the system unit Figure B 3 illustrates exploded view of the system unit showing drive brackets Figure B 4 shows exploded view of main logic board in the system unit 107 Monitor Keyboard cable om SCSI External drive e Keyboard terminator optional 5 I E z fro Er i Mouse Video cable and cable AC power cable Ethernet external drive External drive AC power cable AC power cable Audio input SCSI cable system unit monitor output cable Figure B 1 System Interconnection Table B 1 System Components and Their Part Numbers Component Part Number Color Video Cable Adapter 530 1446 Keyboard cable 530 1442 or 530 1443 Keyboard 320 1005 Video cable 530 1440 or 530 1509 Grayscale Video Cable Adapter 530 1511 AC power cable monitor 180 1146 115 V or 180 1125 240 V Mouse and Mousepad 370 1170 and 370 1368 Monitors See Video Monitors in Chapter 4 AC power cable system unit 180 1179 180 1177 180 1178 180 1176 180 1097 108 SPARG station 2 Field Service Manual February 1991 Main logic board Cover 501 1638 540 1993 M
28. with various I O machines A buffer type of high speed memory that is filled at medium speed from main memory often with instructions and programs 119 card CPU Desktop Backup Pack Desktop Disk Pack Desktop Storage Pack DSP Desktop SunCD Pack Diagnostic Executive DMA DRAM ESM Forth 120 See printed circuit board Central Processing Unit An external unit containing a tape drive that can be connected to a SPARG station 2 An external unit containing a disk drive that can be connected to a SPARG station 2 A generic name for an external unit containing a tape drive a disk drive or a CD ROM drive that can be connected to a SPARCstation 2 The external unit containing the tape drive is referred to as the Desktop Backup Pack The external unit containing a disk drive is specifically referred to as the Desktop Disk Pack The external unit containing a CD ROM drive is specifically referred to as the Desktop SunCD Pack An external unit containing a CD ROM drive See SunDiagnostic Executive Direct Memory Access Dynamic Random Access Memory External Storage Module An external unit that contains disk and or tape drive s that can be connected to a SPARC station 2 A high level programming language A major feature of Forth is that user defined operators can be used as if they are primitives SPARCstation2 Field Service Manual February 1991 Forth Toolkit frame buffer board
29. work quickly It will introduce you to the mouse and keyboard to SunView windows and to the SunOS operating system SunDiagnostic Executive User s Guide for SPARCstations explains how to run extensive configurable tests independent of SunOS The Sun Diagnostic Executive is the tool of choice when you need thorough diagnostics With the Sun Diagnostic Executive you can determine which field replaceable unit needs to be replaced xvi SPARG station 2 Field Service Manual February 1991 System Overview This chapter presents an overview of the SPARC station 2 system s hardware This overview is helpful in servicing and maintaining hardware equipment The heart of the SPARCstation 2 is contained in a main chassis or system unit The system unit houses the main logic board A power supply two optional 3 1 2 inch hard disk drives one optional 3 1 2 inch diskette drive and the speaker are also contained in the system unit A frame buffer board or graphics accelerator board must reside in one of the system s three SBus expansion slots when a video monitor is connected to the system See SBus Boards later in this Chapter for more information You can add expansion modules to increase the system s mass storage capacity See Mass Storage Devices later in this chapter for more information on the expansion modules The figures and tables covered in this chapter include the following Figure 1 1 illustrates the system s configura
30. EETTTITTIITITI Figure 4 8 4 Megabyte SIMM Horizontally mounted Chips 11 Holding a SIMM at its edges insert it into the plastic guides by pushing straight down The SIMM should rest loosely in the slot The SIMMs are keyed to allow installation in only one direction When a SIMM is properly installed its component side must face the back panel FRU Replacement 53 SBus Boards 54 12 Place your thumbs on opposite corners of the SIMM and press firmly until the SIMM snaps into place Press down Press down Plastic guide Plastic guide 13 Replace the system unit s top cover See Replacing the System Unit s Cover near the end of this chapter 14 Turn the system unit s power on and check for proper operation of the system unit and the installed SIMMs See How to Turn the Power Back On at the end of this chapter The system can be equipped with a variety of optional printed circuit boards The following are examples of the boards that plug into the SBus slots on the system s main logic board This list is not necessarily inclusive GX Graphics Accelerator Board This board controls the video output from the system unit and accelerates the generation of graphic images The GX Graphics Accelerator board occupies two SBus slots on the main logic board Color Frame Buffer Board This board occupies one SBus slot This boar
31. FRU IC ID I O IU LANCE LED Monitor 1 Monitor 2 MMU NVRAM An interactive command interpreter based on the Forth programming language While in the Toolkit you will see the ok prompt The Toolkit gives you access to an extensive set of functions for performing fault isolation and debugging A printed circuit board installed in an SBus slot of the system unit that controls a video display Field replaceable unit Integrated Circuit Identification Input Output For example an input output device Integer Unit Local Area Network Controller for Ethernet Light Emitting Diode Indicated by the gt prompt From the gt prompt you can boot the system continue the execution of a halted program or enter the Forth Toolkit If disaster befalls your operating system the Monitor automatically starts A video display unit that is part of the SPARC station 2 It is not the same thing as a terminal Memory Management Unit Non Volatile RAM 121 On Board Diagnostics Por POST printed circuit board PROM RAM ROM SBus board security loop SCC SCSI SIA 122 Is a test that allows you to test the control registers the network controller the diskette drive system memory the cache the system clock and watch the network for valid packets Power On reset TTL open collector signal from the power supply which is activated after DC voltages have risen Power On
32. For more information on the on board diagnostics see Boot PROM Diagnostics in Chapter 2 e Non volatile RAM NVRAM and Time of Day Clock The NVRAM chip see Figures 1 3 and 1 4 contains the time of day clock and the non volatile RAM The NVRAM chip is connected to the I O data bus The NVRAM chip contains its own battery There is no limit on the number of times the NVRAM chip can be written to The non volatile RAM stores the default system configuration parameters The default parameters are listed in Appendix D This defines how the system will be set up at the lowest level You can modify these parameters 12 SPARG station 2 Field Service Manual February 1991 using the Forth Toolkit If you need to change these parameters see Appendix B NVRAM Configuration Parameters Summary in the Open Boot PROM 2 0 Toolkit User s Guide Serial Ports A and B Serial ports A and B are provided on the main logic board see Figure 1 3 These serial ports are RS 423 or RS 232 ports and can connect peripheral equipment such as terminals printers and modems The serial ports on the SPARCstation 2 are set to operate in synchronous or asynchronous RS 423 mode The serial ports can be reconfigured by changing jumpers on the main logic board to run at RS 232 for users in the Federal Republic of Germany Both ports must be configured for either RS 423 or RS 232 mode The serial communications controller chips see Figure 1 4 help to imple
33. Parts layout Legend 82 ListofAAcronyms sese ea ep eee eee er b edt 83 Regulatory Compliance Information sssssssssess 103 Input Power Requirements and Power Dissipation for the System Unit es eens sea kage utei gar depo Rede ganas 104 Table of Environmental Requirements sss 104 Table of Physical Specifications lsseslessssss 105 System Components and Their Part Numbers 108 FRU List continued on next page sssssseesesss 113 xi xii SPARG station 2 Field Service Manual February 1991 About This Book The SPARC stationT 2 Field Service Manual describes how to diagnose system problems by running diagnostic programs and removing and replacing field replaceable units FRUs Appendix C lists the FRU part numbers Who Should Read This Book This book is written for Sun Field Service representatives original equipment manufacturers OEMs value added resellers VARs and other customers with self maintenance contracts What This Book Contains This book contains four chapters four appendices and a glossary System Overview Chapter 1 This chapter presents a high level description of the SPARCstation 2 system followed by brief descriptions of each subsystem Read this chapter to gain a general familiarity with the hardware Diagnostics Overview Chapter 2 This chapter describes the different types of diagnostics and how they are
34. SPARCstation 2 Field Service Manual Sun Microsystems Inc 2500 Garcia Avenue Mountain View CA 94043 U S A 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 Allrights reserved No part of this work covered by copyright may be reproduced in any 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 TheSun logo Sun Microsystems Sun Workstation NeWS and SunLink are regi
35. See Replacing the System Unit s Cover towards the end of this chapter If you have identified the problem go to step 22 If you have not identified the problem go to next step Turn the system and the terminal on and run the Diagnostic Executive with the cache disabled only if all POST tests passed If any of the Diagnostic Executive tests fail replace the part indicated by the test The Diagnostic Executive is an independent operating system It runs exhaustive subsystem tests independent of the SunOS Operating System See the SunDiagnostic Executive User s Guide for SPARC Desktop Systems Atthe gt or ok prompts turn off the system s power switch Disconnect the terminal and reconnect the graphics monitor and the Ethernet connector To reconnect the graphics monitor see Installing Your Monitor in Appendix C of the SPARCstation 2 Installation Guide This completes the procedure FRU Replacement 87 Removing the Main Logic Board This section explains how to remove the main logic board from the system unit To remove the main logic board 1 10 11 12 Removing and replacing the main logic board is a drastic step to take See Before Replacing the Main Logic Board for troubleshooting information Read the parts of Chapter 3 about how to halt your system tools needed removing expansion units removing the system unit s cover and attaching a wrist strap Check that the green LED at the front
36. Slots a A J0703 J0402 HD1 SCSI J0702 Jo401 HD2 SCSI JO602 J0501 a Front Panel Figure 4 25 Main Logic Board Layout FRU Replacement 81 Table 4 3 Main Logic Board Parts layout Legend Figure 4 25 Definition 1 SPARC Floating Point Unit 2 SPARC Integer Unit 3 Cache Controller 4 Cache Data RAM chip set 5 Cache Data RAM chip set 6 Boot PROM 7 NVRAM Time of Day Clock Lithium Battery 8 RS 232 and RS 423 serial port mode jumpers DMA CTRL DMA Controller S4 DMA E NET Ethernet Controller chip set MMU Memory Management Unit chip set OSC Oscillator RAM CTRL RAM Controller 54 RAM SCSI Ctrl SCSI Controller SIMM Single Inline Memory Module J0401 Hard Drive 2 SCSI cable connector J0402 Hard Drive 1 SCSI cable connector J0403 SCSI port J0404 Ehternet port J0501 Diskette Drive data cable connector J0502 Serial Port A J0503 Serial Port B J0504 Keyboard cable connector JO601 Audio Input Output cable connector J0602 System Speaker and LED connector JO701 Power Supply connector J0702 Hard Drive 2 power connector J0703 Hard Drive 1 power connector J0704 Diskette drive power connector J0705 Memory SBus expansion connector 82 SPARG station 2 Field Service Manual February 1991 Table 4 4 List of Acronyms Acronyms Full Expression DMA Direct Memory Access MMU Memory Management Unit NVRAM Non Volatile Random Access Memory PROM
37. Sun System User s Guide Single Inline Memory Modules SIMMs At present up to 64 MBs of memory contained in 4 MB Single Inline Memory Modules SIMMs can be added in increments of 16 MBs see Figures 1 2 1 3 and 1 4 See Single Inline Memory Modules SIMMs in Chapter 4 for SIMM installation and removal instructions Also refer to Installing SPARCSstation 2 SIMMs SBus Boards Various SBus boards can be added to the system s three SBus slots on the main logic board Figures 1 2 1 3 and 1 4 illustrate the SBus slots See SBus Boards in Chapter 4 for information on how to remove and replace SBus boards The following is a list of some of SBus boards available for a SPARCstation 2 Note that this is not an inclusive list of all SBus boards available for the SPARCstation 2 GX Graphics Accelerator Board This board controls the video output from the system unit and accelerates the generation of graphic images The GX Graphics Accelerator board occupies two SBus slots on the main logic board Color Frame Buffer Board This board occupies one SBus slot This board controls the video output from the system unit to a color monitor Second Ethernet Board This board provides you with an extra Ethernet port The Ethernet board is used in applications in which your SPARG station 2 acts as a gateway between two physically distinct Ethernet networks This board has two connectors standard thick Ethernet and thin Ethernet and oc
38. System With the Cover Removed Boards and Modules continued on next page Boards and Modules continued 00 2 000 SIMM Extraction Tool ud A Q N 20 25 26 27 28 30 38 38 43 44 45 49 vii viii Figure 4 4 Figure 4 5 Figure 4 6 Figure 4 7 Figure 4 8 Figure 4 9 Figure 4 10 Figure 4 11 Figure 4 12 Figure 4 13 Figure 4 14 Figure 4 15 Figure 4 16 Figure 4 17 Figure 4 18 Figure 4 19 Figure 4 20 Figure 4 21 Figure 4 22 Figure 4 23 Figure 4 24 Figure 4 25 Figure 4 26 Figure 4 27 Inserting the SIMM Extraction Tool 00 Final Manual Removal of a SIMM sss Location of SIMM Slots in System Unit SIMM Slot Location on Main Logic Board 4 Megabyte SIMM Horizontally mounted Chips Removing and Replacing the Power Supply Hard Disk Drive with 6 Jumpers Jumper Setting for Drive 1 Hard Disk Drive with 5 Jumpers Jumper Setting for Drive 1 Hard Disk Drive with 6 Jumpers Jumper Setting for Drive 2 Hard Disk Drive with 5 Jumpers Jumper Setting for Drive 2 Removing and Replacing the Hard Disk Drive Connecting Power and Data Cables to the Hard Disk Drive Removing and Replacing the Diskette Drive Connecting Power and Data Cables to the Diskette Drive Removing and Replacing the Fan Assembly Connecting Y Power Cable to Fan Assembly
39. V Brown 12 V Gray Por Power On Reset from the power supply Black Ground Note The Por Signal is a TTL open collector and pull up is on the main logic board 13 The limits for the voltages are 5 V 4 90 V to 5 10 V 12 V 11 16 V to 12 84 V 12 V 11 16 V to 13 20 V with an internal drive 12 V 10 20 V to 13 80 V without an internal drive Do the following in sequence o o o o o Turn the power off and connect the hard disk drive and diskette drive power and data cables Turn the power on and again measure the power supply voltages If the voltages are correct you have ruled out that the power supply is defective Go to step 12 If any of the voltages are incorrect follow the next step Disconnect each drive separately until the correct voltages are measured Replace the drive that is holding the voltage down With the power off install the SBus boards that were removed earlier Turn on the power and measure the power supply voltages If any voltages are incorrect after installing the SBus boards remove the boards until the voltages are correct and replace the bad board If the voltages are correct you have ruled out that the power supply is defective Replace the system unit s cover To do this see Replacing the System Unit s Cover towards the end of this chapter FRU Replacement 85 86 14 15 16 17 Turn on the system and the terminal The system will start to boot
40. YOU Begins sad eseadrsden eni Rii 9 be e a 42 Removing and Replacing FRUS svjsssasssases vsskes OY 42 FRU Identificati n vr eee ee ews BAe eee REY e 42 Single Inline Memory Modules SIMMs 46 Determining Faulty SIMM Locations 0 46 opus Boards cc ne we valde S RR ee CEE eus 54 SPARG station 2 Field Service Manual February 1991 Power Suppl jade te E Rc bed 58 HardDisk Dnvea cese Jaa Ge 60 Diskette Deng t ees aque e RUM REPERI 68 Fam ASSembly osi cu RR Ps et atre ra etta b a d 72 Main Logic Board ces 2 Reborn Cen ct ed Teas 75 Serial Port Jumpers oo a RR See ne dehet d 76 Main Logic Board Voltage Test Points 79 Before Replacing the Main Logic Board 83 Removing the Main Logic Board 0 88 Preparing Main Logic Board for Replacement 89 Replacing the Main Logic Board 4 90 B LER Oss eee 93 NVRAM TOD c eue ar x aae Ed Re are ure reich 94 Speaker ss rsREPRSXYG pg EWaerwad s ee ue EXPO Eb 95 Replacing the system Unit s Cover cce Py Ces 98 Connecting the Desktop Storage Pack sue 99 Connecting the External Storage Module 99 Video Monitors ss oM ado sw EET LESES 100 WIGUS Cs taque Diei duae ed moi 100 Kev DOT ud qm nede der porca data quad 100 How to Turn the Power Back On 0000005 100 A System Specifications scs ester te S eee USE HP IS tele 103 Regulatory Complianc
41. ain logic board OMB 501 1744 Figure B 2 Exploded View of the System Unit Illustrated Parts Breakdown 109 Diskette drive Diskette drive data cable power cable Diskette drive 530 1452 530 1679 370 1207 Diskette drive plastic bracket 330 1343 System cover 540 1993 Speaker clip 330 1165 LED speaker assembly without clip 540 1703 Screws Power supply 240 1855 Hard drives pl EU e 370 1327 Fan assembly Su NR 540 1802 240 1531 w Hard drive Hard drive Hard drive Screw data cable power cable plastic bracket 240 1141 530 1451 530 1453 330 1343 Figure B 3 Exploded View of the System Unit Showing Drive Bracket 110 SPARG station 2 Field Service Manual February 1991 Hard drive 2 Hard dive 2 Chassis data cable power cable 540 2071 530 1451 530 1453 From LED speaker assembly 540 2072 Diskette drive data cable 530 1452 12 pin cable from power supply 300 1038 Diskette drive power cable 530 1679 Hard drive 1 data cable 530 1451 Hard drive 1 power cable 530 1453 SBus slot 2 DC filler panel SBus slot 3 Main logic board 501 1638 501 1739 4 MB Figure B 4 Exploded View of the Main Logic Board in the System Unit Illustrated Parts Breakdown 111 112 SPARG station 2 Field Service Manual February 1991 FRU List FRU List This appendix lists the part numb
42. ault you will obtain either the gt or ok prompt The gt prompt is the default prompt You can change the default prompt to obtain the ok prompt the Forth Toolkit prompt as the default To make the ok prompt the default prompt see the Open Boot PROM 2 0 Toolkit User s Guide If the autoboot switch parameter is set to true default and the diagnostic switch parameter is set to false default SunOS is booted using the device path sbus esp sd83 0 If the autoboot switch parameter is set to true default and the diagnostic switch parameter is set to true not the default SunOS is booted using the device path sbus 1e To boot user specified programs such as the SunDiagnostic Executive you must beatthe or ok prompt See On Board Diagnostics later in this chapter for a detailed procedure on how to obtain the and ok prompts Diagnostics Overview 21 Autoboot Diagnostic Switch Switch Results Parameter Parameter False Don t care or ok prompt True False boot SunOS vmunix from disk 0 sbus esp sd 3 0 True True boot SunOS vmunix from network sbus le When to Use Diagnostics You should use each type of diagnostic tool in the appropriate circumstances Table 2 1 provides a summary of the available diagnostic tools and lists when to use each diagnostic tool 22 SPARG station 2 Field Service Manual February 1991 Table 2 1 Summary of Available Diagnostic Tool
43. bracket handle see Figure 4 16 Pull it up slightly to release the locking tabs on the bottom of the mounting bracket 8 Slide the diskette drive toward the center of the chassis Lift the diskette drive out of the chassis This completes the diskette drive removal process FRU Replacement 69 70 Mounting Diskette drive bracket handle Mounting tab slots Figure 4 16 Removing and Replacing the Diskette Drive To prepare a diskette for replacement 1 Remove the mounting bracket from the drive Turn the drive over and remove the four screws securing the bracket to the bottom of the drive 2 Disconnect the data and Y power cable from the drive see Figure 4 17 3 Remove the replacement drive from its protective packaging 4 Install the mounting bracket on the replacement drive Fasten the bracket to the bottom of the hard drive by inserting and tightening the four screws through the bracket SPARG station 2 Field Service Manual February 1991 5 Connect the data and Y power cables to the replacement drive see Figure 4 17 The power and data connector are keyed so they will fit only one way To replace the diskette drive 1 Align the four mounting tabs on the bottom of the drive mounting bracket with the slots in the bottom of the chassis see Figure 4 16 Slide the drive forward towards the outside of the chassis until the two locking tabs click into their slots Connect the
44. bs that fit into slots in the bottom of the chassis SPARG station 2 Field Service Manual February 1991 Caution The diskette drive contains electronic components that are extremely sensitive to static electricity Ordinary amounts of static from your clothes or work environment can destroy the components Do not touch the components themselves or any metal parts Wear a grounding strap when handling the drive See Attaching a Wrist Strap in Chapter 3 Do not disconnect the power cord from the system unit s power outlet or from the wall socket This connection provides the ground path necessary to safely remove and install the diskette drive Make sure that the system unit s power is turned off by checking that the green light emitting diode LED at the front of the chassis is not lit and the fans are not running To remove the diskette drive 1 Read the parts of Chapter 3 about how to halt your system tools needed removing expansion units attaching a wrist strap and removing the system unit s cover 2 Check that the green LED at the front of the chassis is not lit 3 Check that the fans are not running 4 Check that the system s power cord remains connected to the system and the wall outlet 5 Disconnect the diskette drive s data cable from the main logic board 6 Disconnect the Y power cable from the main logic board and the fan assembly see Figure 4 17 7 Grasp the diskette drive mounting
45. ce the boot PROM follow these steps 1 10 Before removing and replacing the boot PROM you should have verified that the boot PROM needs to be replaced See Before Replacing the Main Logic Board earlier in this chapter before continuing The procedure described in that section explains how to run POST and the Diagnostic Executive Read the parts of Chapter 3 about how to halt your system tools needed removing expansion units removing the system unit s cover and attaching a wrist strap Check that the green LED at the front of the chassis is not lit Check that the fans are not running Check that the system s power cord remains connected to the system and the wall outlet Remove the SBus boards from SBus slots 1 and 2 See SBus Boards earlier in this chapter Locate the boot PROM see Figures 4 25 and 4 26 Remove the boot PROM To do this use an IC extractor or a small flat bladed screwdriver and remove the PROM from its socket slowly and evenly Insert the new boot PROM in the socket To do this match the pin 1 indicator on the boot PROM with the indicator on the socket Holding the boot PROM at the edges carefully align the pins and insert the boot PROM in the socket Note that inserting the chip backwards will damage the chip Replace the SBus boards in the system unit See SBus Boards earlier in this chapter Replace the system unit s cover To do this see Replacing the Syste
46. communication S4 RAM controllers SBus 1 slots E Boot PROM a 16 SIMMs S4 e video S Oo NVRAM TOD Diskette drive VRAM controller SBus frame buffer board 4 Audio Figure 1 4 Block Level Diagram of the Main Logic Board System Overview Major Components Main Logic Board The system s major components usually consist of the following The system unit The keyboard The video monitor or a terminal The mouse Optional external storage modules The following are some of the external storage modules available o o o o o o o o o o o Desktop Backup Pack 150 MB megabyte tape drive only Desktop Disk Pack 207 MB hard disk drive only Desktop SunCD Pack 644 MB maximum CD ROM player only External Storage Module 327 MB hard disk drive only External Storage Module 327 MB hard disk drive and 150 MB cartridge tape drive External Storage Module dual 327 MB hard disk drives External Storage Module 669 MB hard disk drive only External Storage Module dual 669 MB hard disk drives External Storage Module 669 MB hard disk drive and 150 MB cartridge tape drive External Storage Module 669 MB hard disk drive and 2 3 GB cartridge tape drive External Storage Module 2 3 GB cartridge tape drive only These units may be daisy chained together For information on installing and using external drive unit see the Desktop Storage Pack Installation Guide The major sections of
47. ct to the rear of each drive Each drive and its plastic mounting bracket are secured to the chassis by four mounting tabs and two locking tabs that fit into slots in the bottom of the chassis SPARG station 2 Field Service Manual February 1991 Caution The hard disk drive contains electronic components that are extremely sensitive to static electricity Ordinary amounts of static from your clothes or work environment can destroy the components Do not touch the components themselves or any metal parts Wear a grounding strap when handling the drive See Attaching a Wrist Strap in Chapter 3 Do not disconnect the power cord from the system unit s power outlet or from the wall outlet This connection provides the ground path necessary to safely remove and install the hard disk drive Make sure that the system unit s power is turned off by checking to make sure that the green light emitting diode LED at the front of the chassis is not lit and that the fans are not running To remove a hard disk drive 1 Read the parts of Chapter 3 about how to halt your system tools needed removing expansion units attaching a wrist strap and removing the system unit s cover 2 Check that the green LED at the front of the chassis is not lit 3 Check that the fans are not running 4 Check that the system s power cord remains connected to the system and the wall outlet 5 Disconnect the hard disk drive power and data cabl
48. cupies one SBus slot 14 SPARG station 2 Field Service Manual February 1991 Mass Storage Devices GS Graphics Accelerator Board This option consists of two boards that are plugged to each other on their component sides They are triple wide SBus boards and occupy three SBus slots Figure 4 2 shows the top side of GS Graphics Accelerator Board when it is installed in the system unit This option provides 24 bit color and 3 dimensional graphics capabilities It also requires a 76 Hz color monitor Video Frame Capture Board This board occupies one SBus slot This board takes video input and displays it on color or monochrome monitors SBus Printer Card This board occupies one SBus slot This board connects the system to printing plotting and scanning devices 1 Bit Analog Frame Buffer Board This board occupies one SBus slot It controls the video output from the system to a monochrome monitor The following is some of the mass storage devices available Note that the following list is not necessarily an inclusive list of mass storage devices available for SPARCstation 2 Hard disk drives Two optional 3 1 2 inch SCSI 207 MB hard disk drives see Figure 1 2 can be installed in the system unit Chapter 4 describes how to replace the optional hard disk drives in the system unit Optional expansion modules The following are available Desktop Storage Packs DSPs o Desktop Backup Pack 150 MB SCSI compatible tape drive only
49. d controls the video output from the system unit to a color monitor SPARG station 2 Field Service Manual February 1991 Second Ethernet Board This board provides you with an extra Ethernet port The Ethernet board is used in applications in which your SPARG station 2 acts as a gateway between two physically distinct Ethernet networks This board has two connectors standard thick Ethernet and thin Ethernet and occupies one SBus slot GS Graphics Accelerator Board This option consists of two boards that are plugged to each other on their component sides They are triple wide SBus boards and occupy three SBus slots Figure 4 2 shows the top side of GS Graphics Accelerator Board when it is installed in the system unit This option provides 24 bit color and 3 dimensional graphics capabilities It also requires a 76 Hz color monitor Video Frame Capture Board This board occupies one SBus slot This board takes video input and displays it on color or monochrome monitors SBus Printer Card This board occupies one SBus slot This board allows the connection of the SBus to printing plotting and scanning devices 1 Bit Analog Frame Buffer Board This board occupies one SBus slot It controls the video output from the system to a monochrome monitor If you have removed an SBus board because it was defective replace SBus board into the same slot s from which the defective one was removed For information on installing the SBu
50. d j drive drive E odis le 285 2 OD ell He ko Q Front panel Fan System assembly speaker Figure 1 2 Top View of the System With the Cover Removed System Overview 3 Figure 1 3 illustrates the main logic board s layout All the chips discussed in Main Logic Board which follows are illustrated in this figure Back Panel J0503 TTY B J0502 TTY A J0404 J0403 SCSI J0601 KBD J0504 LIE I manu adt EI is zs E NET SCSI LI SPARC CACHE 2 3 MMU z c EI I og A c eo 13 eo OT MU MMU MMU SBus Slot 3 SBus Slot 2 SBus Slot 1 DO J0704 Bu S4 ej __ RAM E 1 J0701 apt SIMM SIMM Slots Slots J0703 J0402 HD1 SCSI J0702 J0401 HD2 SCSI en J0501 Front Panel Figure 1 3 The Workstation s Main Logic Board SPARG station 2 Field Service Manual February 1991 Table 1 1 Main Logic Board Parts Layout Legend Figure 1 3 Definition 1 SPARC Floating Point Unit 2 SPARC Integer Unit 3 Cache Controller 4 Cache Data RAM chip set 5 Cache Data RAM chip set 6 Boot PROM 7 NVRAM Time of Day Clock Lithium Battery 8 RS 232 and RS 423 serial port mode jumpers DMA CTRL DMA Controller S4 DMA E NET Ethernet Controller chip set MMU Memory Management Unit chip set OSC Oscillator RAM CTRL RAM Controller 54
51. d replace FRUs you will need the following tools and materials Phillips screwdriver Flat blade screwdriver Wrist strap SIMM extractor Chip extractor Container for screws Anti static mat for the SIMMs and the main logic board Nonconductive foam to store chips A Volt Ohmmeter VOM for checking voltages and fuses Disconnecting Desktop Storage Packs If your system unit has Desktop Storage Packs connected to it disconnect the Desktop Storage Packs SCSI connector from the back of the system unit To disconnect the Desktop Storage Pack from the system unit 1 Press in on the finger clips on the connector connecting the Desktop Storage Pack to the system unit and pull the connector off This action disconnects the SCSI cable from the system unit Disconnecting External Storage Modules 36 If your system unit has External Storage Modules connected to it disconnect the External Storage Modules SCSI connector from the system unit To disconnect the External Storage Module ESM from the system unit 1 Press in on the finger clips on the connector connecting the ESM to the system unit and pull the connector off This action disconnects the SCSI cable from the system unit SPARG station 2 Field Service Manual February 1991 Removing the System Unit s Cover Figure 3 1 shows how to remove the system unit s cover Three tabs on the front of the cover fit into three slots in the chassis These tabs secure the front o
52. data and Y power cables to the main logic board see Figure 4 17 The data and power connectors plug into the data and power connectors on the main logic board The connectors are keyed so that each will fit only one way Connect the Y power cable to the fan assembly see Figure 4 17 Replace the system unit s top cover See Replacing the System Unit s Cover near the end of in this chapter Turn the system unit s power on and check for proper operation of the system unit and the replaced diskette drive See How to Turn the Power Back On at the end of this chapter FRU Replacement 71 Connector P1 of the Y power cable yellow black black red connects to J0704 main logic board Connector P2 black red connects to diskette drive Data cable connects to J0501 HOGBBOOB Dooooooo nuncu m System speaker 9 F Fan assembly Internal hard disk drives Spore Front panel Figure 4 17 Connecting Power and Data Cables to the Diskette Drive Fan Assembly Each SPARCstation 2 contains two fan assemblies One of them is built into the power supply Although the power supply is a field replaceable unit the fan assembly resides in
53. diag file diag device net net boot file boot device disk disk auto boot true true watchdog reboot false false fcode debug false false use nvramrc false false nvramrc screen columns 80 80 screen rows 34 34 sunmon compat true true security mode none none security password security badlogins 0 ttyb rts dtr off false false ttyb mode 9600 8 n 1 9600 8 n 1 ttyb ignore cd true true ttya rts dtr off false false ttya mode 9600 8 n 1 9600 8 n 1 ttya ignore cd true true hardware revision last hardware update testarea 85 0 mfg switch false false true true diag switch OpenBoot PROM 117 118 SPARG station 2 Field Service Manual February 1991 A RMS board boot boot PROM boot PROM diagnostics buffer cache Glossary Amperes root mean square RMS is often used in power measurements for electronic equipment See printed circuit board In the SPARCstation 2 a board occupies one or more SBus slots To load the system software into memory and start it running A term referred to for the PROM chip on the main logic board This chip contains boot code consisting of a Forth Monitor program The boot PROM is connected to the I O data bus The diagnostic firmware contained in the boot PROM These diagnostics include the Power On Self Test POST and on board diagnostics The auxiliary data storage device which holds data temporarily and which may also perform other functions in conjunction
54. ds to be replaced 1 Read the parts of Chapter 3 about how to halt your system tools needed removing expansion units removing the system unit s cover and attaching a wrist strap 2 Turn the power on Connect the power cord to the system and the wall outlet The power is required to measure the voltage on the LED pin later on 3 Check that the green LED at the front of the chassis is lit 4 Check that the fans are running 5 Locate the speaker assembly see Figure 4 1 FRU Replacement 95 6 Measure the voltage on the LED pin of the speaker connector by using a VOM If the voltage measured is 0 V the LED will not light Replace the main logic board See Removing the Main Logic Board and Replacing the Main Logic Board earlier in this chapter If at least 5 V is measured on the LED pin of the connector and the LED does not light the LED is bad Replace the LED speaker assembly as directed in the following procedures 7 Test if sound is heard when sound is being sent to the speaker Replace the system unit s cover To do this see Replacing the System Unit s Cover later in this chapter 8 Bring up the system and boot the SunOS Operating System To do this see Booting Your System in Chapter 1 of the Sun System amp Network Manager s Guide 9 Generate sound through the speaker by entering either of the following cat usr demo sound sample au gt dev audioThe system plays back a spoken message Or
55. e power cord from the system unit s power outlet or from the wall socket This connection provides the ground path necessary to safely remove and install the modules Make sure that the system unit s power is turned off by checking to make sure that the green light emitting diode LED at the front of the chassis is not lit and that the fans are not running Note Bank 0 must be filled with SIMMs or the system will not pass its power on self test To remove a SIMM follow these steps 1 Read the parts of Chapter 3 about how to halt your system tools needed removing expansion units attaching a wrist strap and removing the system unit s cover 2 Check that the green LED at the front of the chassis is not lit 3 Check that the fans are not running 4 Check that the system s power cord remains connected to the system and the wall outlet 5 Locate the SIMM slots on the main logic board The SIMM components must be facing toward you see Figures 4 6 and 4 7 Note Slots U0310 U0314 and U0318 are not identified on the board with any visible markings 6 Insert the hooked end of the extraction tool see Figure 4 3 into the left or right SIMM extraction hole Use the hole that allows rotation of the tool to the left or right without encountering obstructions see Figure 4 4 SPARG station 2 Field Service Manual February 1991 Figure 4 3 SIMM Extraction Tool SIMM slot top view
56. e the command indicated and press the Return key For example enter sync means to type the command indicated and press the Return key The following books provide additional information that you may need and are occasionally referenced in this manual Open Boot PROM 2 0 Toolkit User s Guide provides a summary of the Forth Toolkit commands Preface xv Sundiag User s Guide covers information about Sundiag a system exerciser that runs under the SunOS Operating System Sundiag displays real time use of system resources and peripherals SPARC station 2 Installation Guide provides step by step instructions on how to install the system s hardware and software Installing SPARCstation 2 SIMMs provides step by step information on how to install SIMMs in the SPARGstation 2 Installing SPARC station 2 Internal Drives provides information on how to install internal drives in the SPARG station 2 Sun System amp Network Manager s Guide describes system and network management tasks for maintaining a single Sun workstation or a small network of Sun workstations Desktop Storage Pack Installation Guide explains how to install and daisy chain external storage modules External Storage Module Installation Guide provides step by step information on how to install disk and tape drives that can be connected to a SPARCstation 2 Sun System User s Guide covers the basics of using the SPARCstation 2 so that you can get to
57. e usse tede old tet datis 103 Input Power Requirements 442 ue be PERI P Edad 104 Contents v vi Environmental Requirements xo ovcvev vovv tox 104 Physical Specifica onsec tes oar BE ESI VES uen 105 B Illustrated Parts Breakdown 000 cee eee eee 107 Darts Breakdown ps 20 SERT 107 G FRU s es aug ex dra eee pete rra 113 INE MC 113 D Open Boot PROM 64543324 bd REESE ed dire RE gd re ees 115 Open Boot PROM S i vostre e e ee Ns e ol ed al aa 115 Glossary FAA AS SD 119 idle EEE ENE NE EE GEER 125 SPARG station 2 Field Service Manual February 1991 Figures Figure 1 1 Figure 1 2 Figure 1 3 Figure 1 4 Figure 2 1 Figure 2 2 Figure 2 3 Figure 2 4 Figure 2 5 Figure 2 6 Figure 3 1 Figure 3 2 Figure 4 1 Figure 4 2 Figure 4 2 Figure 4 3 SPARC station 2 Block Diagram 0 6 6 6c cece eee Top View of the System With the Cover Removed The Workstation s Main Logic Board 56 Block Level Diagram of the Main Logic Board Default Boot Mode Arrangement of Keyboard LEDs 0000005 Keyboard LED Diagnostic Codes lislllsssss Location of SIMM Slots in System Unit L SIMM Slot Locations on Main Logic Board Halting the System and Displaying On Board Diagnostics System Unit Back Panel avuavavvvavvvvvnrvvnnnnen The System Unit s Cover aavvavvvvvavvvvnarvvnnnnen Top View of the
58. er and description of each FRU for the SPARCstation 2 Table C 1 lists the FRU by field replaceable unit part number and description Table C 1 FRU List continued on next page Field Replaceable Unit Main Logic Board SIMM NVRAM EPROM SBus Board Part Number 501 1638 501 1744 501 1739 525 1112 525 1107 370 1370 501 1645 501 1672 501 1718 501 1561 Description Main Logic Board Main Logic board 0 MB 4 MB SIMM NVRAM Battery EPROM 32 Pin DIP Boot PROM GS Graphics Accelerator Board GX Graphics Accelerator Board Lego SC Graphics Accelerator Board Color Frame Buffer Board 1 Bit Analog Frame Buffer Board 113 Field Replaceable Unit Part Number Description Power Supply Hard Disk Drive Diskette Drive LED Speaker Assembly and Clip Fan Assembly Screw for fan assembly Video Monitor Keyboard Mouse Mouse Pad Cable 300 1038 370 1327 370 1207 540 2072 540 1802 240 1855 365 1095 365 1099 365 1100 365 1113 320 1005 370 1170 370 1368 530 1440 530 1451 530 1452 530 1453 530 1509 530 1679 Power supply 85 W 207 MB 3 1 2 90 mm Disk Drive 1 47 MB 3 1 2 Disk Floppy LED Speaker Assembly Fan Assembly SEMs M3 5 25 mm Phillips Hd Zn 19 483 mm Sony Color 115 230 V 19 483 mm Grayscale 115 230 V 17 432 mm Grayscale 115 230 V 16 407 mm Sony Color 115 230 V Keyboard Type 4 Mouse SUN 4 CIR DIN
59. er supply and a screw The screw is inserted through the rear bezel of the system unit A 12 pin power cable connects the power supply to the main logic board just behind the power cable connector for the diskette drive Warning Make sure that the system unit is unplugged from the AC power outlet and the power switch is in the off position before you remove replace or install the power supply in the system unit Failure to take this precaution may result in severe electrical shock To remove the power supply follow these steps 1 Read the parts of Chapter 3 about how to halt your system tools needed removing expansion units attaching a wrist strap and removing the system unit s cover 2 Check that the green LED at the front of the chassis is not lit 3 Check that the fans are not running 4 Remove the power cord from the system unit 5 Remove the screw from the back panel Figure 4 9 6 Disconnect the cable from the white 12 pin connector J0701 on the main logic board 7 Grasp the power supply Slide it forward toward the front of the chassis and lift it out of the chassis SPARG station 2 Field Service Manual February 1991 To replace a new power supply follow these steps 1 Align the new power supply correctly as shown in Figure 4 9 with the tabs and guides in the bottom of the chassis Position the power supply by pushing it firmly toward the rear of the chassis until it locks into t
60. es See How to Turn the Power Back On towards the end of this chapter SPARG station 2 Field Service Manual February 1991 Hard disk 2 Mountin bracket handle SCSI data cable and power connections on main logic board Figure 4 14 Removing and Replacing the Hard Disk Drive FRU Replacement 67 Diskette Drive 68 Power cable Data cable Internal hard 7 FAD Pod disk drive lo o o EErEE TE IsTejsjsjejeree 4 ft O iq DI Power supply L L j Ni j i au D ri JIA a xj n le 3 D O Oo p L Front panel System speaker Fan assembly Hard drive 1 power cable Hard drive 2 power cable blue black black red blue black black red connects to J0703 and connects to J0702 not ribbon cable connects completely visible and ribbon to J0402 cable connects to J0401 Figure 4 15 Connecting Power and Data Cables to the Hard Disk Drive The diskette drive is located at the front right side of the chassis next to the hard disk drives see Figures 4 1 and 4 16 A 34 pin data cable and a 4 pin power cable connect to the rear of the drive The drive and its mounting bracket are secured to the chassis by four mounting tabs and two locking ta
61. es from the main logic board see Figure 4 14 6 Grasp the hard disk drive mounting bracket handle see Figure 4 14 Pull it up slightly to release the locking tabs on the bottom of the mounting bracket 7 Slide the hard disk drive toward the rear of the chassis Lift the hard disk drive out of the chassis This completes the hard disk drive removal process FRU Replacement 61 62 To prepare a hard disk drive for replacement Before replacing a hard disk drive you must verify that the SCSI drive address ID is installed correctly see Table 4 2 The SCSI device ID of drive 1 must be 3 The SCSI device ID of drive 2 must be 1 see Table 4 2 The factory setting for all replacement hard disk drives is SCSI device ID 3 Table 4 2 Table of Hard Disk ID Jumper Settings Drive Number SCSI Device ID Jumper Setting 1 See Figures 4 10 See Figure 4 15 and 4 11 2 1 See Figures 4 12 See Figure 4 15 and 4 13 Depending on the replacement drive available the jumpers are located either near the lower right corner of the drive controller board or near the lower left corner Note The markings for the jumpers on the drive shown in Figures 4 10 and 4 12 are etched or labeled onto the drive s controller board The jumpers on the drive shown in Figures 4 11 and 4 13 are not marked on the drive s controller board 1 Remove the four screws from the bracket and remove the bracket from the drive Set the old dri
62. ette drive controller chip Ethernet is controlled by a Local Area Network Controller for Ethernet LANCE controller chip see Figures 1 3 and 1 4 The SCSI hard disk drives are controlled by the SCSI controller chip see Figures 1 3 and 1 4 The diskette drive is controlled by the diskette drive controller chip see Figure 1 4 System Overview 11 Eight Bit Devices The eight bit devices connected to the I O data bus consist of the following Boot PROM The boot PROM see Figures 1 3 and 1 4 is connected to the I O data bus The boot PROM is 256Kx8 in size and contains the boot code diagnostics and the Forth Toolkit signified by the ok prompt The Forth Toolkit does not look like other Sun Monitor programs and does not behave like the older Sun PROMs The boot PROM does the following a Runs startup diagnostic tests b Initializes the host machine c Reads non volatile RAM NVRAM and executes the boot sequence Usually this consists of booting SunOS In some cases however the SunDiagnostic Executive or standalone programs can also be run For more information on the boot sequence see How It Fits Together in Chapter 2 d Supplies program code for the abbreviated system monitor signified by the prompt and the Forth Toolkit If the boot attempt fails the boot PROM tries to start the abbreviated system monitor e Supplies program code for the on board diagnostics accessible through the Forth Toolkit
63. f the cover to the chassis A security loop secured to the cover goes through the bottom of the chassis To remove the cover and gain access to the FRUs inside the system unit 1 Make sure that the power is turned off to your system unit but that the power cord remains plugged in to the system unit and to the power source See Halting the System earlier in this chapter 2 Remove the top cover from the system unit Do the following in sequence o Remove the two screws holding the cover to the back panel see Figure 3 1 o Grasp the sides of the cover from the rear and tilt the cover until the security loop clears the chassis see Figure 3 2 Gently push the cover forward about 1 2 inch 13 mm so that the plastic tabs clear the chassis o o Remove the cover by lifting vertically cover See Replacing the System Unit s Cover towards the end of Chapter 4 Warning Before powering up your system again be sure to replace the top It is not safe to operate the SPARG station 2 without its top cover in place Preparing to Work on the System 37 38 O w N Nl Q gt JE ENN Note There are five screws on the back panel Remove screws 1 and 2 Do not remove screws 3 4 and 5 Figure 3 1 System Unit Back Pane
64. gic board into the system unit To replace the main logic board 1 10 11 Insert the connectors on the rear of the replacement board into the back panel as shown in Figure 4 26 Align the board so that the five tapered mounting holes align with the standoffs in the bottom of the chassis After the board is properly aligned slide it back toward the rear bezel until the standoffs lock into the mounting holes Install two Phillips head screws to secure the main logic board to the rear of the chassis see Figure 4 26 Connect the 12 pin power cable from the power supply to connector J0701 see Figures 4 25 and 4 26 in the right front corner of the main logic board The connector is keyed so that the power cable will fit only one way Connect the 34 line diskette drive data and power cables to the connectors on the main logic board see Figure 4 26 The data cable connector is J0501 and the power connector is J0704 see Figure 26 The connectors are keyed so they will fit only one way Connect the hard disk drive data and power cables to the data and power connectors on the main logic board see Figures 4 25 and 4 26 Drive 1 data cable is J0402 and drive 1 power cable is J0703 Drive 2 data cable is J0401 and drive 2 power cable is J0702 The connectors are keyed so that they will only fit one way Connect the LED Speaker cable assembly to connector J0602 in the right front corner of the ma
65. gnostic Executive to isolate the problem SunDiagnostic Executive The SunDiagnostic Executive is an independent operating system It runs exhaustive subsystem tests independent of SunOS Run the SunDiagnostic Executive if all POST tests pass in order to troubleshoot what field replaceable unit needs to be replaced For information on POST see Power On Self Test Detailed Description earlier in this chapter The SunDiagnostic Executive which provides you with thorough diagnostics is described in the SunDiagnostic Executive User s Guide for the SPARCstations Monitor and Forth Toolkit The Monitor is a basic diagnostic utility If there is any problem with your operating system the Monitor automatically starts indicated by the gt prompt You can also choose to enter the Monitor by halting the system To enter the Forth Toolkit indicated by the ok prompt enter n from the gt prompt The following procedure explains how to enter the Monitor and the Forth Toolkit 1 Save all your work and quit all applications The following screen summarizes the steps you need to take to halt the system and enter the Forth Toolkit hostnamet usr etc fasthalt syncing file systems done Halted Type b boot c continue or n new command mode gt n Diagnostics Overview 31 32 2 As root enter usr etc fasthalt The system syncs the file systems and brings you to either the gt or ok prompts The gt prompt is t
66. hat has a terminal as a console rather than a Sun keyboard and bitmapped monitor you must press Break instead of L1 A to obtain a boot prompt To halt a system that is hung or frozen and unresponsive to commands 1 Press L1 A The system displays the system boot prompt 2 Enter n The system displays a help message and an ok prompt 3 Enter sync The system displays panic and boot messages The sync command helps prevent the system from losing data that was not preserved when the system hung 4 Wait until the system boots and displays a system login prompt 5 Turn off the power in this order o External drive unit if you have one o System unit o Monitor The following example shows how to halt a hung system Press L1 A gt n Type help for more information ok sync System panic and boot messages tutorial login For additional information on the halt procedure see Chapter 1 of the Sun System amp Network Manager s Guide and also the System amp Network Administration manual Caution Make sure your system is shut off The green LED at the front of the system unit should not be lit and the fans should not be running Do not disconnect the power cord from the system unit s power outlet or the wall socket This connection provides the ground path necessary to remove and install the printed circuit boards and component Preparing to Work on the System 35 Tools Needed To remove an
67. he default prompt You will see the ok prompt if you reset the system parameters to have the ok prompt the Forth Toolkit prompt as the default prompt For Non Volatile RAM system configuration parameters used during reset see Appendix D To have the ok prompt as the default see the Open Boot PROM 2 0 Toolkit User s Guide If you see the ok prompt you are already in the Forth Toolkit and need to do nothing further If you see the gt prompt go to the next step 3 Enter n to enter the Forth Toolkit The ok prompt shows that you are in the Forth Toolkit For extensive information on tests you can run from the Forth Toolkit see Chapter 5 of the Open Boot PROM 2 0 Toolkit User s Guide To return to the Monitor prompt from the Forth Toolkit ok old mode gt SPARG station 2 Field Service Manual February 1991 Halting the System N Preparing to Workon the System This chapter explains steps you must perform before replacing field replaceable units FRUs Topics covered in this chapter include the following How to halt the system Tools needed How to disconnect the Desktop Storage Pack How to disconnect the External Storage Module How to remove the system unit s cover How to attach a wrist strap Before you replace FRUs you must halt the system in an orderly manner Caution You must halt the system in an orderly manner When the operating system or any other stand alone program has already bo
68. he tabs Connect the power cable to the white 12 pin connector J0701 on the main logic board The connector is keyed so that the power cable will fit only one way see Figure 4 9 Secure the power supply to the chassis by installing the screw through the rear panel of the chassis see Figure 4 9 Replace the system unit s top cover See Replacing the System Unit s Cover near the end of this chapter Connect the power cord to the system unit Turn the system unit s power on and check for proper operation of the system unit and the newly replaced power supply See How to Turn the Power Back On towards the end of this chapter If the newly replaced power supply still does not work properly a problem exists in the system unit such as a blown component or a short circuit Refer to the section Before Replacing the main Logic Board later in this document for power supply voltage measurement procedures Note Make sure the power supply is connected to the main logic board before making any voltage measurements FRU Replacement 59 Power cable with 12 pin connector Power supply Tabs and guides Power supply securing screw 12 pin main logic board power connector Figure 4 9 Removing and Replacing the Power Supply Hard Disk Drive 60 Two 3 1 2 inch half height hard disk drives can be installed in the system chassis A 50 pin SCSI data cable and a 4 pin power cable conne
69. heck for proper operation of the system unit See How to turn the Power Back On towards the end of this chapter Main Logic Board Voltage Test Points There are no voltage test points on the main logic board If you need to measure DC voltages use the pins on the 12 pin power supply connector J0701 located on the main logic board Figure 4 25 The pins with red wires are 5 V the blue wires are 12 V the brown wire is 12 V and the black wires are GROUND See Figure 4 24 for pin locations if the wire colors described here do not match the connector The acceptable range for 5 V voltage is 4 90 V to 45 10 V The acceptable range for 12 V is 11 6 V to 412 84 V The allowable range for 12 V is 11 6 V to 13 2 V with an internal disk drive installed or 10 2 V to 13 8 V without an internal drive FRU Replacement 79 5V 5V GND GND 412V 12V 11 12 5V 5V GND GND 12V Power On Reset Figure 4 24 Pin Location of Power Supply Connector JO701 80 SPARCstation 2 Field Service Manual February 1991 Back Panel Ld EN J0503 TTYB J0502 TIYA J0404 J0403 SCSI een 40804 4 E w EJ H E NET L LJ s ae OOO 1 OSC Sonne E MMUA tir DMA J0705 MMUJ MMU imod MMU SBus Slot 3 SBus Slot 2 SBus Slot 1 JO704 S4 RAM J0701 SIMM
70. ic address That address is compared against information stored in the cache tags The 54 cache chip decides if the data the IU is looking for is stored in the cache based on the information stored in the cache tags If the data is in the cache the cache data RAM transmits data to the IU as fast as the IU can receive data If the data is not in the cache this is referred to as a cache miss and the IU is halted An SBus cycle is initiated to obtain the required data from main memory The cache data RAM is filled with the information obtained from main memory and the IU is started again The cache design implemented in the SPARCstation 2 is a 64 K write through cache with one level of write buffering The cache line size is 16 bytes with one tag for each line There are three SBus slots on the main logic board see Figures 1 2 and 1 3 SBus boards such as frame buffer board a GX graphics accelerator board or a second ethernet board are installed in the SBus slots The SBus slots are connected to the SBus data bus and the SBus address bus The SBus is a proprietary 32 bit synchronous bus See SBus Boards later in this chapter for more information on specific SBus boards SBus Boards in Chapter 4 explains how to remove and replace SBus boards Memory Management Unit The 54 memory management unit MMU chip see Figures 1 3 and 1 4 is connected to the system bus The MMU maps the virtual addresses used by user programs SunOS and
71. in logic board see Figures 4 25 and 4 26 Re install the SIMMs into their original sockets See SIMMs earlier in this chapter for the correct locations SPARG station 2 Field Service Manual February 1991 Note Bank 0 must be filled with SIMMs or the system will not pass its power on self test 12 Re install the SBus boards as directed in SBus Boards earlier in this chapter 13 Connect all of the cables to the ports at the rear of the system unit 14 Replace the system unit s top cover See Replacing the System Unit s Cover later in this chapter 15 Turn the system unit s power on and check for proper system operation See How to Turn the Power Back On at the end of this chapter FRU Replacement 91 From LED Diskette drive speaker assembly data cabe 540 2072 Hard drive 2 12 pin cable from data cable BOWErSUppIy E 530 1451 300 1038 Hard drive 2 J l Ru ae power cable Diskette drive fan J SM 530 1453 wer Eg id i 7 Hard drive 1 data cable EN 530 1451 Hard drive 1 B power cable 530 1453 Main logic board Front panel of system unit Securing screw Back panel of System unit 7 Securing screw Figure 4 26 Removing and Replacing the Main Logic Board 92 SPARCstation 2 Field Service Manual February 1991 Boot PROM This section explains how to remove and replace the boot PROM on the main logic board To remove and repla
72. ing 46 SIMM slot locations 52 SIMM slots 3 SIMMs 14 46 installing 50 removing 48 51 single inline memory modules 14 46 removing 48 51 SPARC station 2 Field Service Manual February 1991 sound 14 replacing 100 generating 96 SPARCstation 2 block diagram 2 W speaker 3 95 wrist strap removing 97 attaching 39 replacing 97 trouble shooting 95 speaker clip 95 standalone programs 21 Sundiag system exerciser 30 SunDiagnostic Executive 31 system interconnection 107 interior 3 monitor 31 unit 1 unit s cover removing 37 replacing 98 T test points 79 TOD 94 tools needed to replace FRUs 36 turning off power 34 35 turning the power back on 100 typographical conventions XV U user specified programs 21 V Video Frame Capture Board 15 55 video monitors 129 130 SPARG station 2 Field Service Manual February 1991
73. ion Glossary The glossary contains definitions of technical terms abbreviations and acronyms Before Reading This Book xiv Before reading this book you should have performed hardware installation If you are connecting to a network you should also be proficient with system administration and networking procedures If you are not proficient in these areas please read the following books before attempting to repair your system SPARCstation 2 Installation Guide Sun System amp Network Manager s Guide SPARG station 2 Field Service Manual February 1991 Typographic Conventions Related Books This book uses a number of typographic conventions This font is used for emphasis and for the title of a book For example The heart of the SPARCstation 2 is contained in a main chassis or system unit SPARCstation 2 Installation Guide This font indicates text the system displays on the screen This font also indicates characters and words you enter as shown within text Examples follow Syncing file systems done Enter passwd This font indicates what you type as illustrated in screen examples For example sync This font also indicates a key that you press For example Press the Delete key When you see two key names press and hold the first key then type the second character For example When you see L1 A press and hold L1 while typing A The term enter means to typ
74. l Security loop Remove these two screws from back panel Figure 3 2 The System Unit s Cover SPARG station 2 Field Service Manual February 1991 Attaching a Wrist Strap The wrist strap is a device that provides grounding between your body and the system unit s chassis for static electricity Electric current and voltage do not pass through the wrist strap Attach the wrist strap to your wrist and to the system chassis Parts that require the use of a wrist strap are packed with one you do not wear a wrist strap Caution Boards and modules can be damaged by harmful electrical charges if To attach the wrist strap 1 Wrap the grounding strap with the conductive adhesive tape twice around your wrist Make sure the adhesive side is against your skin Attach end to metal casing of power supply bs Wrap the wrist strap twice around your wrist adhesive against your skin 2 Attach the end with the adhesive copper strip to the metal casing of the power supply in the system unit Preparing to Work on the System 39 40 SPARG station 2 Field Service Manual February 1991 FRU Replacement This chapter explains how to remove defective FRUs and replace new ones See FRU list in Appendix C for the part numbers and description of FRUs The following units are field replaceable Single Inline Memory Modules SIMMs SBus boards Power supply Hard disk drives Diskette drive Fan asse
75. le Figure 4 19 Place the fingerguard on top of the fan assembly Install both screws through the fingerguard fan assembly and the chassis Figure 4 18 Replace the system units s top cover See Replacing the System Unit s Cover near the end of this chapter SPARG station 2 Field Service Manual February 1991 Main Logic Board 6 Turn the system unit s power back on and check for proper operation of the system unit and the newly installed fan assembly See How to Turn the Power Back On towards the end of this chapter Connector P1 of the Y power cable yellow black black red connects to J0704 main logic board 2 pin connector yellow black connects to the fan assembly Connects to J0704 L Internal diskette drive i EoG00000 Eeee eee System speaker Fan assembly Internal hard 5 disk drives Oo So a E I Front panel Figure 4 19 Connecting Y Power Cable to Fan Assembly The main logic board contains the CPU the floating point coprocessor the boot PROM the NVRAM SIMMs SBus boards two RS 423 232 ports an Ethernet port a SCSI port and connectors for a
76. m Unit s Cover towards the end of this chapter FRU Replacement 93 NVRAM TOD 94 11 Re run the POST test again to determine if the new boot PROM solved the problem See Before Replacing the Main Logic Board earlier in this chapter There is a lithium battery within the NVRAM TOD Time of Day chip The NVRAM chip is located to the right of the boot PROM see Figures 4 25 and 4 28 You must remove the NVRAM chip from the main logic board you are replacing and install it in the new main logic board For more information see Replacing the Main Logic Board To remove and replace the NVRAM TOD chip follow these steps 1 Before removing and replacing the NVRAM TOD chip you should have verified that the NVRAM TOD chip needs to be replaced See Before Replacing the Main Logic Board earlier in this chapter before continuing The procedure described in that section explains how to run POST and the Diagnostic Executive Read the parts of Chapter 3 about how to halt your system tools needed removing expansion units removing the system unit s cover and attaching a wrist strap Check that the green LED at the front of the chassis is not lit Check that the fans are not running Check that the system s power cord remains connected to the system and the wall outlet Remove the SBus boards from SBus slots 1 and 2 See Removing SBus Boards in this chapter Locate the NVRAM TOD chip see Figures 4
77. m unit s cover and attaching a wrist strap Check that the green LED at the front of the chassis is not lit Check that the fans are not running Check that the system s power cord remains connected to the system and the wall outlet Connect a terminal to the system unit For details see the SPARCstation 2 Installation Guide This enables you to view output of the POST test results as they are run Disconnect the graphics monitor and the Ethernet connectors Remove the SBus boards from the system To do this see SBus Boards earlier in this chapter Unplug the hard disk drives and the diskette drive from their data and power cables See Figures 4 17 and 4 19 in this chapter for the location of the data and power cables Make sure all SIMMs are correctly seated see Figures 4 6 and 4 7 for the location of the SIMM slots all cables attached and all chips on the main logic board correctly seated in their sockets Note Bank 0 must be filled with SIMMs or the system will not pass its power on self test 11 12 Turn the system power on Measure the power supply voltages with a VOM Figure 4 26 Caution Measuring voltages without connecting the DC cable to the main logic board will result in inaccurate readings Without load the power supply will not regulate SPARG station 2 Field Service Manual February 1991 The wire colors are the following Red 5V Blue 12
78. mbly Main logic board Boot PROM NVRAM TOD clock System speaker Video monitors Mouse mouse pad and cable Keyboard Cables FRU replacement described in the manuals for the Desktop Storage Pack and the External Storage Module are not covered in this manual 41 Before You Begin Before you replace FRUs make sure you have done the following Halted your system Verified that you have the proper tools Removed the expansion units if any Removed the system unit s cover Attached a wrist strap See Chapter 3 for further information Removing and Replacing FRUs N FRU Identification 42 N This section describes how to remove and replace FRUs Please read through the entire set of instructions before removing and replacing a FRU Caution Make sure your system is shut off The green LED at the front of the system unit should not be lit and the fans should not be running Do not disconnect the power cord from the system unit s power outlet or from the wall socket This connection provides the ground path necessary to safely remove and install the printed circuit boards and components Before you attempt to replace or install a new board or module make sure that you have the right unit Figure 4 1 shows a top view of the system unit with the cover removed Figure 4 2 shows some of the field replaceable boards and the memory module There are other field replaceable boards that are available but not shown
79. ment the serial port A and B interface Refer to Chapter 4 Main Logic Board for information on how to set the serial port jumpers Keyboard and Mouse Interface A keyboard port on the back of the main logic board to the left of the Serial B port see Figure 1 3 controls the keyboard and mouse The serial communications controller chips see Figure 1 4 help to implement the keyboard and mouse interface Diskette Drive Controller The internal diskette drive is connected to the I O data bus by the diskette drive controller chip see Figure 1 4 Audio The system speaker is connected to the I O data bus by the audio chip see Figure 1 4 There is one audio port on the back panel You can plug the following devices into the audio input output port Dynamic high impedance microphone 10 000 ohms to 50 000 ohms impedance o Dynamic low impedance microphone 300 ohms to 1000 ohms impedance o Audio tape player equipped with attenuating adapter o Compact disc player equipped with attenuating adapter Headphones 30 ohms to 100 ohms impedance External amplifier and loudspeaker o o System Overview 13 The workstation s sound capabilities can be shown with Soundtool an audio demonstration program included with SunOS To test the workstation s sound see Speaker in Chapter 4 For additional information see SunOS Features in Chapter 6 of the SPARCstation 2 Installation Guide and Appendix C in the
80. nitor when the operating system crashes To bot SunOS or another program from the prompt enter b To resume execution of a halted program from the prompt enter c To enter the Forth Toolkit from the gt prompt enter n Described later in this chapter Performs all functions available through the Monitor except entering the Forth Toolkit Changing NVRAM parameters Resetting the system Running diagnostics Displaying system information Redirecting input and output See the Open Boot Prom 2 0 Toolkit User s Guide for more information Diagnostics Overview 23 Boot PROM Diagnostics The diagnostics stored in the boot PROM include the following Power On Self Test On Board Diagnostics The Power On Self Test POST is the default mode If there is system trouble you may want to run extended on board diagnostics to take advantage of thorough tests including but not limited to Ethernet memory and diskette drive tests See Figure 2 3 for the table of keyboard LED diagnostic codes The boot PROM diagnostics are described in the following sections Power On Self Test POST The Power On Self Test POST runs automatically when you turn on the system s power switch or reboot the system The POST code which resides in the boot PROM is executed by the CPU IU when the Por signal is received from the power supply Por is a Power On reset TTL open collector signal from the power supply which is activated af
81. o Desktop Disk Pack 207 MB hard disk drive only o Desktop SunCD Pack 644 MB maximum CD ROM only External Storage Modules ESMs o External Storage Module 327 MB hard disk drive only o External Storage Module 327 MB hard disk drive and 150 MB cartridge tape drive o External Storage Module dual 327 MB hard disk drives System Overview 15 Power Supply 16 o External Storage Module 669 MB hard disk drive only External Storage Module dual 669 MB hard disk drives External Storage Module 669 MB hard disk drive and 150 MB cartridge tape drive External Storage Module 669 MB hard disk drive and 2 3 GB cartridge tape drive o o o o External Storage Module 2 3 GB cartridge tape drive only These units may be daisy chained together By attaching optional expansion units you can increase the system s mass storage capacity For information on installing and using external drive units see the Desktop Storage Pack Installation Guide or the External Storage Module Installation Guide Diskette drive An optional 3 1 2 inch 1 44 MB internal diskette drive see Figure 1 2 can be installed in the system unit The drive accepts a 4 pin AMP power connector and a 34 pin data cable The data transfer rate is 1 Mbps Mbit per second Diskette Drive in Chapter 4 describes how to remove and replace the optional diskette drive in the system unit The power supply see Figure 1 2 is housed in the system unit It connects to
82. of the chassis is not lit Check that the fans are not running Check that the system s power cord remains connected to the system and the wall outlet Disconnect all of the cables from the connectors on the rear of the system unit Place an anti static mat shiny side up next to the system unit Remove the SBus boards See SBus Boards earlier in this chapter Place the SBus boards on the anti static mat Remove the SIMMs from their sockets Note the slots they were originally installed into Place the SIMMs on the antistatic mat Disconnect the 12 pin power supply cable from the J0701 connector in the right front corner of the main logic board see Figures 4 25 and 4 26 Disconnect the LED speaker assembly cable J0602 from the connector in the right front corner of the main logic board see Figures 4 25 and 4 26 Disconnect the 34 line diskette data J0501 and power cables J0704 from the connectors on the main logic board see Figures 4 27 and 4 26 and fold them out of the way 88 SPARC station 2 Field Service Manual February 1991 13 14 15 16 17 18 19 Disconnect the hard disk drive data J0401 and J0402 and power cables J0702 and J0703 from the data and power connectors on the main logic board see Figures 4 25 and 4 26 Fold them out of the way With an IC extractor or a small flat bladed screwdriver remove the NVRAM chip see Figure 4 25 and Table 4 3 f
83. or the location of the NVRAM chip from its socket slowly and evenly Store the NVRAM chip in conductive foam or place it on the antistatic mat to prevent damage from electrostatic discharge Save the NVRAM chip for re use Remove the two Phillips head screws that secure the board to the back panel see Figure 4 26 Slide the main logic board toward the front of the chassis to release it from the five standoffs in the bottom of the chassis Grasp the board by the SBus slot connectors with both hands and carefully lift it out of the chassis Avoid handling any of the delicate electronic components or touching any of the main logic board s traces Place the main logic board on the anti static mat Preparing Main Logic Board for Replacement This section explains how to prepare the main logic board for replacement To prepare a main logic board for replacement 1 Remove the NVRAM chip from the replacement main logic board and place it on the anti static mat Insert the NVRAM from the defective board in the replacement board at the same location Match the pin 1 indicator on the NVRAM chip with the indicator on the socket Holding the NVRAM chip at the edges carefully align the pins and insert the NVRAM chip in the socket Figure 4 25 and Table 4 3 show the location of the NVRAM chip on the main logic board FRU Replacement 89 90 Replacing the Main Logic Board This section explains how to replace the main lo
84. oted do not use the L1 A keys to halt the system Abruptly aborting program execution may cause damage to data files 33 To halt the system 1 Save any files you are presently editing Quit from any applications that will lose information when the system halts See the Sun System User s Guide for more information about ending a work session 2 Enter bin su to become superuser Additional information about the superuser command is described in Chapter 2 of the Sun System amp Network Manager s Guide 3 Enter the superuser password 4 Enter usr etc halt The system displays system halt messages followed by the Monitor prompt gt tutorial bin su Password tutorial usr etc halt Syncing file systems done Halted Type b boot c continue or n new command mode gt 5 Turn off the power in this order External module if you have one o System unit Monitor Caution Make sure your system is shut off The green LED at the front of the system unit should not be lit and the fans should not be running Do not disconnect the power cord from the system unit s power outlet or the wall socket This connection provides the ground path necessary to safely remove and install the printed circuit boards and components SPARC station 2 Field Service Manual February 1991 Margin note On some keyboards L1 appears on the front face of the Stop key On a system t
85. pe and display information A terminal may be connected to either of the RS 423 RS 232 serial interface ports on the back panel of the SPARCstation 2 It is not the same thing as a monitor Time of Day clock Universal Asynchronous Receiver Transmitter Virtual Random Access Memory A device that provides grounding for static electricity between your body and the system unit s chassis Electric current and voltage do not pass through the wrist strap 123 124 SPARCstation2 Field Service Manual February 1991 Index Symbols gt prompt 3 Numerics 1 bit analog frame buffer board 15 55 A alias and boot paths 116 alias and booth paths 116 alias and booth paths table 116 audio 14 chip 13 input output port 13 autoboot switch 21 B backpanel 38 battery 94 block diagram SPARCstation 2 2 block level diagram 7 boot mode default 21 flowchart 20 boot PROM 3 12 diagnostics 24 removing 93 replacing 93 boot prompt 31 bringing down the system 33 C cache memory 9 chassis 1 Color Frame Buffer Board 14 54 component parts 3 components 3 8 connector power supply 80 cover removing 37 replacing 98 CPU 3 9 preparing for replacement 89 125 126 CPU board 75 removing 88 replacing 90 test points 79 troubleshooting 83 CPU core 9 D default boot mode 21 flowchart 20 Desktop Backup Pack 8 15 Desktop Disk Pack 8 15 Desktop Storage Pack connecting 09 disconnecting 36 Desktop
86. r boot command at ok Diag switch prompt No default Y or ok prompt Boot from Boot from Boot user device path device path specified sbus le S9US eSp sd 3 0 program Figure 2 1 Default Boot Mode 20 SPARCstation 2 Field Service Manual February 1991 How It Fits Together This section describes how the various diagnostic tools work together in the different power on modes This description assumes you are using a graphics monitor to view test results The flowchart in Figure 2 1 outlines the roles played by various diagnostics during the default boot mode When you turn on system power the low level POST code stored in the boot PROM is executed While low level POST code is executing you will see the four LEDs on the keyboard flashing to indicate that testing is in progress If a failure occurs in POST the failing field replaceable unit FRU is encoded on the four LEDs located on the Type 4 keyboard See Power On Self Test later in this chapter for more information If the POST passes the system probes for SBus devices and interprets their drivers Next high level tests are performed You will see the word Testing while the high level tests are running After Testing is displayed if you want to enter the Monitor indicated by the gt prompt press the L1 A keys simultaneously If the autoboot switch parameter is set to false not the def
87. r of the failing SIMM may be indicated by keyboard LED display but only if the SIMM belongs to bank 0 see Figure 2 4 The other twelve SIMM Slots will be tested by the POST memory diagnostics and errors will be reported Memory error messages on the system monitor display usually include a physical memory address o o SPARG station 2 Field Service Manual February 1991 19 20 21 22 23 24 25 of any failing SIMM Depending on the diagnostic program you are running and the SunOS release loaded a SIMM slot number may be displayed See Determining Faulty SIMM Locations earlier this chapter Replace the defective SIMM See Single Inline Memory Modules SIMMs earlier in this chapter If NVRAM or TOD or Battery fails replace the NVRAM See NVRAM TOD later in this chapter If the main logic board fails replace the main logic board See Removing the Main Logic Board and Replacing the Main Logic Board later in this chapter o o o If you see nothing on the display and the system appears dead replace the main logic board See Removing the Main Logic Board and Replacing the Main Logic Board later in this chapter Atthe gt or ok prompt turn off the system s power switch Reconnect the power and data cables to the hard disk drives and the diskette drive See Figures 4 17 and 4 19 in this chapter for the location of the data and power cables Replace the system unit s cover
88. re 4 1 Top View of the System With the Cover Removed FRU Replacement 43 Ol O JOI SBus Printer Card O JD Or Lf EG O LH Ley L ro Color Frame Buffer Board LT LT GS Graphics Accelerator Board LI I I I I 1 TI TI GX Graphics Accelerator Board Boards and Modules continued on next page SPARG station 2 Field Service Manual February 1991 Oo P O r1 TI Ethernet board Single Inline Memory Module
89. rive system memory and the system clock See Diagnostic Routines in the Open Boot PROM 2 0 Toolkit User s Guide for a detailed description and step by step instructions of the available on board diagnostic tests To return to the Monitor gt prompt enter the following ok old mode gt Sundiag System Exerciser The Sundiag System Exerciser which runs under SunOS displays real time use of system resources and peripheral equipment such as Desktop Storage Packs and External Storage Modules The Sundiag System Exerciser is run to verify that the system is functioning properly The exerciser is shipped with SunOS and preinstalled on SPARCstation 2 If it has been selected during the SunInstall operating system loading procedure it can be run at any time and is found in the directory usr diag sundiag If the Sundiag System Exerciser is not found on the system hard disk or server 30 SPARCstation 2 Field Service Manual February 1991 you can load it from tape or CD For information on how to use the Sundiag System Exerciser see the Sundiag User s Guide Appendix A Loopback Connectors in the Sundiag User s Guide explains how to connect the external loopback connectors required for some options If Sundiag passes the system is operating properly If Sundiag fails the system is not operating properly To identify the problem when Sundiag fails first run the POST If all POST tests pass next run the SunDia
90. s Regulatory Compliance Table A 1 lists regulatory compliance information Table A 1 Regulatory Compliance Information PRODUCT SAFETY UL 478 CSA C22 2 No 154 IEC 380 EMI FCC Class B VDE Class B DOC Class B ERGONOMICS German Federal Republic ZH 1 618 X RAY EMISSIONS DHHS PTB 103 Input Power Requirements Table A 2 lists the input power requirements for the system unit The maximum power dissipated is less than or equal to 120 watts The power supply automatically selects the correct AC voltage range Table A 2 Input Power Requirements and Power Dissipation for the System Unit Operating Maximum Maximum Maximum Thermal Operating Voltage Input Input Input Dissipation Frequency Range Current Power Volt Amps Range 87 5 132 Vac 2 1 Amps 119 Watts 179 406 BTU 47 63 Hz 180 264 Vac 1 2 Amps 119 Watts 179 406 BTU 47 63 Hz Environmental Requirements Table A 3 lists the environmental requirements for the operating environment and the non operating environment Table A 3 Table of Environmental Requirements Operating Environment Temperature between 0 to 40 degrees C 32 and 104 degrees F Humidity 5 to 80 relative noncondensing at 40 degrees C 104 degrees F Wet Bulb 25 degrees C 77 degrees F maximum Altitude 0 to 3 048 m 0 to 10 000 ft Vibration 5 22 Hz 0 01 inches p p 22 500 Hz 0 25 g p p Shock 5 g pk 10 msec 1 2 sine wave Non Operating Environment Temperature between 20
91. s and slots Caution SIMMs are made of delicate electronic components that are extremely sensitive to static electricity Ordinary amounts of static from your clothes or work environment can destroy the modules Do not remove the SIMMs from the anti static container until told to do so Handle the modules only by the edges Do not touch components themselves or any metal parts Always wear a grounding strap when handling the modules SPARC station 2 Field Service Manual February 1991 1 Read the parts of Chapter 3 about how to halt your system tools needed removing expansion units attaching a wrist strap and removing the system unit s cover 2 Check that the green LED at the front of the chassis is not lit 3 Check that the fans are not running 4 Check that the system s power cord remains connected to the system and the wall outlet 5 Locate the SIMM slots on the main logic board see Figures 4 6 and 4 7 SPARC floating point unit FPU SPARC integer 1 unit IU SBus slots Cache controller Boot Lithium Serial port PROM battery jumpers Back panel 00000000 DONDOOOO Oog ooooo e FX n zi BB Power supply SIMM SIMM slots c
92. s board see the manual included with it To remove an SBus board from the system unit 1 Read the parts of Chapter 3 about how to halt your system tools needed removing expansion units attaching a wrist strap and removing the system unit s cover 2 Check that the green LED at the front of the chassis is not lit 3 Check that the fans are not running 4 Check that the system s power cord remains connected to the system and the wall outlet FRU Replacement 55 5 Locate the SBus board you want to remove 6 Remove the external connectors attached to the SBus board Put your index fingers or thumbs underneath the corners of the SBus board where it is plugged into the slot Pull up on the board Caution The plastic SBus retainer is not a handle Pulling on the SBus board retainer can cause it to break This action releases the SBus board from the SBus slot Pull up on corners underneath of board Do not pull on plastic SBus board retainer SBus board retainer Holes that receive mounting plate hooks SBus slot 1 SBus slot 2 SBus slot 3 To replace an SBus board in the system unit 1 Slide the SBus board at an angle into the back panel of the system unit see the following figure Margin noteThe mounting slots Make sure that the mounting plate on the SBus board hooks upward into the are above the rectangular opening holes at the back panel of the system unit for the connector in the back
93. sert and tighten screws in back panel Figure 4 27 Replacing the System Unit s Cover Connecting the Desktop Storage Pack To connect the Desktop Storage Pack DSP to the system unit 1 Connect the connector on the SCSI cable to the SCSI port on the system unit s back panel 2 See the Desktop Storage Pack Installation Guide for additional installation information Connecting the External Storage Module To connect the External Storage Module ESM to the system unit follow these steps 1 Connect the SCSI connector on the SCSI adapter cable to the SCSI port on the system unit s back panel 2 See the Sun External Storage Module for additional installation instructions FRU Replacement 99 Video Monitors Keyboard There are several different types of monitors and cabling The color and grayscale monitors use cables with 13W3 connectors See Appendix C of the SPARC station 2 Installation Guide for more specific information on monitors and monitor cables The optical mouse connects to one of two jacks in the back of the keyboard The mouse can be connected on either the left or right side to accommodate either left handed or right handed users Connect the mouse to the keyboard before you connect the keyboard to the system unit A cable connects the keyboard to the system unit The keyboard port is located at the left rear of the system unit when viewed from the front Connect the keyboard cable on either the lef
94. stered 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 SPARG station 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 Contents About This BOOK iy ss err vette s T MA ORAN cra Br kar Se date xiii 1 System vere s cain iue Surses kassa st Adi GS soos t an 1 Major Components coo ERREUR ERA ia 8 Main Logic Board ie Rebecca qe eet 8 PUI GOR Lus vestitu y
95. system Abruptly aborting program execution may cause damage to data files To run On board diagnostics 1 Save all your work and quit all applications 2 As root halt the system by entering usr etc fasthalt You are presented with either the gt prompt or the ok prompt The gt prompt is the default prompt If you want to change the default prompt to the ok prompt see the Open Boot PROM 2 0 Toolkit User s Guide If you see the gt prompt go to the next step If you see the ok prompt go to Step 4 3 Enter n to enter the Forth Toolkit The ok prompt shows that you are in the Forth Toolkit 4 Enter help diag to get a listing of tests comprising on board diagnostics Diagnostics Overview 29 Figure 2 6 summarizes the steps you need to take to halt the system enter the Forth Toolkit and list the diagnostic tests hostnamef usr etc fasthalt System messages are displayed gt n ok help diag Category Diag diagnostic routines test device specifier run selftest method for specified devic Examples test memory test memory test sbus 1 test net test net test net device specifier is an alias test floppy test floppy disk drive watch clock show ticks of real time clock probe scsi show attached SCSI devices Figure 2 6 Halting the System and Displaying On Board Diagnostics These on board tests allow you to test the network controller the diskette d
96. t or right side of the keyboard then to the port on the back of the system unit How to Turn the Power Back On N N 100 After turning off the power to replace FRUS turning the power on again is relatively simple Warning This device is equipped with a 3 wire grounded power cord To reduce the risk of electrical shock always plug the power cord into a properly grounded power outlet Caution Always allow 10 seconds between turning off the power and turning it back on again This pause prevents possible damage to power supply components in your system unit SPARC station 2 Field Service Manual February 1991 Turn the power switches on in this order Monitor External drive if you have one System Unit After a minute or so you should see the login prompt system system system system system system system system system messages messages messages messages messages messages messages messages messages hostname login When you see the login screen you can log in to your system For more information on logging in see Chapter 2 of the Sun System User s Guide FRU Replacement 101 102 SPARG station 2 Field Service Manual February 1991 System Specifications This appendix contains system specifications including dimensions electrical and power requirements environmental requirements and compliance with electrical and safety regulation
97. ter DC voltages have risen The POST consists of a sequence of tests designed to test the major hardware components of the main logic board in a short time before SunOS is booted POST does not perform extensive testing on any component of the main logic board Only major failures can be detected by POST If a failure occurs in POST a specific LED pattern is displayed on the four LEDs located on the upper right corner of your keyboard Figure 2 2 shows the arrangement of keyboard LEDs Following the system s successful initialization SunOS is booted automatically unless the NVRAM configuration options specify not to do so Power On Self Test Detailed Description This section describes the keyboard LED patterns as a result of POST and their meaning Figure 2 2 shows the arrangement of keyboard LEDs 24 SPARG station 2 Field Service Manual February 1991 Caps Scroll Num Lock Compose Lock Lock Figure 2 2 Arrangement of Keyboard LEDs Figure 2 3 shows the LED display patterns the field replaceable units FRUs that fail power on tests and the meaning of the display patterns Figure 2 4 shows the location of the SIMM slots in the system unit Figure 2 5 shows how the SIMM slots are identified on the main logic board Table 2 2 identifies memory banks and slots Diagnostics Overview 25 26 Meaning of Pattern Unassigned Testing completed SunOS is booted Bad checks
98. the main logic board consist of the following CPU core SBus slots e Memory Management Unit MMU 54 Direct Memory Access DMA SPARG station 2 Field Service Manual February 1991 CPU Core Dynamic Random Access Memory RAM Input Output such as the Ethernet controller chip the SCSI controller chip and the diskette drive controller chip Eight bit devices The CPU core consists of the following Integer Unit IU Floating point Unit FPU Cache memory These components are discussed in the sections that follow Integer Unit The basic core of the main logic board is the SPARC Integer Unit IU see Figures 1 3 and 1 4 The IU s clock speed is 40 MHz The IU is supported with the 54 chip set including the 54 cache the 54 memory management unit the S4 buffer and the S4 clock Floating Point Unit The floating point unit see Figures 1 3 and 1 4 delivers approximately 4 0 Mflops double precision Linpack performance Cache Memory Cache memory see Figures 1 3 and 1 4 is high speed local memory for the IU The chips comprising cache memory include the following S4 Cache Cache Data RAMs The 54 cache chip serves as the SBus controller and the address path The 54 buffer chip controls the data path through the cache The 54 cache chip also controls what data is available in the cache data RAMs System Overview 9 10 SBus Slots The IU asks for data from a specif
99. the main logic board near the lithium battery See Figures 4 20 4 21 4 22 and 4 23 SPARG station 2 Field Service Manual February 1991 Back panel N oo000000 DoNoOO000 Dogooooo x SPARC floating _ K n point unit FPU a SPARC integer D it I unit IU Sane SBus slots supply SIMM SIMM Cache slots slots controller a Hard drive N 1 A o GD d Y Front panel Boot Lithium Serial port PROM battery jumpers Fan System assembly speaker Figure 4 20 Top View of System Unit s Internal Parts FRU Replacement 77 J0404 Ethernet port Lithium battery Back panel QE JO502 Boot PROM serial port A Figure 4 21 Serial Port Jumpers RS232 RS423 Figure 4 22 Preset RS 423 Jumper Positions 6 Use a pair of needlenose pliers and move both jumpers from the RS 423 positions to the RS 232 positions 78 SPARCstation 2 Field Service Manual February 1991 RS423 Figure 4 23 RS 232 Jumper Positions 7 Replace the top cover of the system unit To do this see Replacing the System Unit s Cover near the end of this chapter 8 Turn the power of the system unit on and c
100. the power supply itself is not a field replaceable unit See Power Supply earlier in this Chapter The other fan assembly is located at the front right side of the chassis next to the diskette drive and the system speaker see Figure 4 18 This fan assembly is a field replaceable unit 72 SPARG station 2 Field Service Manual February 1991 To remove the fan assembly 1 Read the parts of Chapter 3 about how to halt your system tools needed removing expansion units attaching a wrist strap and removing the system unit s cover Check that the green LED at the front of the chassis is not lit Check that the fans are not running Check that the system s power cord remains connected to the system and the wall outlet Disconnect the fan cable from the 2 pin connector of Y power cable Figure 4 19 Remove both screws from the fan assembly Figure 4 18 Remove the fingerguard Figure 4 18 Grasp and lift the fan assembly out of the chassis FRU Replacement 73 74 m d Securing screws FE Fingerguard LAE Fan assembly Hard disk 1 Figure 4 18 Removing and Replacing the Fan Assembly To replace the fan assembly 1 Align the replacement fan assembly such that the mounting holes on the fan and the chassis are lined up The locator on the chassis makes sure that the fan is oriented the correct way Figure 4 18 Connect the fan cable to the 2 pin connector of Y power cab
101. tion with an external storage device Figure 1 2 presents the top view of the system with the cover removed Figure 1 3 presents the main logic board s layout Table 1 1 gives the legends to be used with Figure 1 3 Table 1 2 lists the acronyms used for certain parts and their full expressions Figure 1 4 presents the block level diagram of the main logic board The balance of the chapter describes the system s components Figure 1 1 is a block diagram of one of the workstation s configurations Monitor Mouse Keyboard wS Sy Main logic board Tape Hard disk Internal Internal hard drive diskette External storage i ae device System unit Figure 1 1 SPARCstation 2 Block Diagram SPARCstation 2 Field Service Manual February 1991 Figure 1 2 shows the top view of the system with the cover removed Boot Lithium Serial port PROM battery jumpers Back panel ooooooo00 0000000 oogoo000 pa SPARC floating _ H n _ point unit FPU E SPARC integer 1 D unit IU v L Power SBus slots supply SIMM SIMM Cache slots slots H controller Hard WM Har
102. to 75 degrees C 4 to 167grees F Humidity 5 to 9076 relative noncondensing at 40 degrees C 104 degrees F Wet Bulb 46 degrees C 115 degrees F maximum Altitude 0 to 12 192 m 0 to 40 000 ft Vibration 5 22 Hz 0 02 inches p p 22 500 Hz 0 5 g p p Shock 20 g pk 30 msec 104 SPARG station Field Service Manual February 1991 Physical Specifications Table A 4 lists the physical specifications for the system unit the keyboard the optical mouse and selected monitors Table A 4 Table of Physical Specifications Component System Unit Keyboard Mouse Monitor 16 in color Monitor 17 in grays Monitor 19 in color Monitor 19 in grays Height 2 8 in 7 1 cm 2 in 5 cm 2 in 5 cm 15 8 in 40 cm 14 5 in 36 7 cm 17 4 in 44 2 cm 17 5 in 44 5 cm Width 16 in 40 9 cm 19 in 48 cm 4 in 10 cm 15 5 in 39 4 cm 16 1 in 40 9 cm 18 4 in 46 7 cm 18 1 in 46 0 cm Depth 16 in 40 9 cm 8 in 20 cm 3 in 8 cm 17 3 in 43 8 cm 15 6in 339 5 cm 20 6 in 52 3 cm 15 9 in 45 2 cm Net Weight 25 Ibs 11 kg 2 Ibs 1 kg 0 3 Ibs 0 14 kg 70 Ibs 31 8 kg 37 Ibs 16 8 kg 75 Ibs 34 1 kg 52 Ibs 23 6 kg System Specifications 105 106 SPARG station Field Service Manual February 1991 Parts Breakdown Illustrated Parts Breakdown This appendix illustrates how to connect the system s component parts and presents global views of the
103. udio input output and keyboard mouse as well as many other ICs see Figures 4 20 and 4 21 See Chapter 1 for an overview of the main logic board FRU Replacement 75 76 In addition a 12 pin plug connects to the power supply cable to provide power to the board and the disk drives The 34 line diskette drive data and power cables connect to the main logic board just in front of the white 12 pin connector plug The 50 line SCSI data cables and the hard disk drive power cables connect along the front of the main logic board to the left of the speaker and diskette data cable connections Serial Port Jumpers There are two serial port jumpers on the main logic board see Figures 4 20 and 4 21 The jumpers are preset from the factory in RS 423 mode The ports can be set either as RS 232 mode for users in the Federal Republic of Germany or as RS 423 mode for the rest of the users See SPARCstation 2 Installation Guide for more information on serial port mode jumpers To change the serial port jumpers on the main logic board to RS 232 mode 1 Read the parts of Chapter 3 about how to halt your system tools needed removing expansion units removing the system unit s cover and attaching a wrist strap 2 Check that the green LED at the front of the chassis is not lit 3 Check that the fans are not running 4 Check that the system s power cord remains connected to the system and the wall outlet 5 Locate the jumper blocks on
104. um in boot PROM NVRAM Time of Day Clock failed Main Logic Board component failed SIMM U0311 failed bank 0 SIMM U0309 failed bank 0 SIMM U0307 failed bank 0 SIMM U0322 failed bank 0 Reserved Reserved Reserved Reserved Reserved LED Display Pattern FRU e E PROM O ram oC NVRAM TOD Main Logic O O E mm Board s cu M O mm I EM O EN O mm EE EM oo o oc I EA Cl EH Em i mE mm EM m Em EH mm mm EH um Reserved Reserved Reserved Figure 2 3 Keyboard LED Diagnostic Codes SPARG station 2 Field Service Manual February 1991 Boot Lithium Serial port PROM battery jumpers Back panel OOOOO000 0000000 oogooooo p SPARC floating _ H n point unit FPU SPARC integer 1 3 unit IU v L Power SBus slots supply SIMM SIMM Cache slots slots d controller a L HB u Hard Hard l drive drive Diskette 1 2 drive H Front panel Fan System assembly speaker Figure 2 4 Location of SIMM Slots in System Unit Diagnostics Overview 27 SBus slots
105. ve aside on the static mat 2 Remove the replacement drive from its protective packaging and set it with the component side up on the antistatic mat You now have access to the drive controller board Go to the next step if you are replacing drive 1 Go to step 4 if you are replacing drive 2 SPARG station 2 Field Service Manual February 1991 3 Inspect the jumper settings Compare them to the settings shown in Figure 4 10 or 4 12 o If the settings are the same as in the figure that matches your drive leave them as they are o If the settings are not the same change them to match the settings in the figure Go to step 5 4 Inspect the jumper settings Compare them to the settings shown in Figure 4 11 or 4 13 o If the settings are the same as in the figure that matches your drive leave them as they are If the settings are not the same change them to match the settings in the figure 5 Replace the mounting bracket on the new drive Fasten the bracket to the drive by inserting and tightening the four screws through the bottom of the bracket into the bottom of the drive 6 Remove the power and data cables from the old drive and connect them to the replacement drive The power and data cables are keyed so they will fit only one way FRU Replacement 63

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