Board Components, Other FRUs | HP 28642A instruction

Board Components

The foIIowing board components are available for replacement (seefigure 2-l for location):

PROM (location U52):	28655-81001
Fuse, termination power:	2110-0517
Onboard SCSIterminator,

(single in-line packages,SIPS): 1810-0676(two installed)

Other FRUs

Other PRUs associatedwith this product include the following:

SCSI card cable, 1 meter: External SCSIbus terminator: Loopback hood:

Parallel cable,* 2 meters:

5062-3383

12523920 (active,single-ended)

5061-6565(single-ended)

51804010 (sameasHP 92284A)

*Not applicable for the HP 28642Aproduct on MPE XL systems.MPE XL systemsdo not support the useof the parallel port.

2-4 Service Information

Image 41

HP 28642A manual Board Components, Other FRUs

Contents

HP 28642A HP-PB Scsi HP 28655A HP-PB SCSI/ Parallel 5960-3126 El091 HP HP Print History Safety Considerations@Hewlett-Packard Company, 1991. AI1rights rcservcd Installation and S&vice HP 28642A and HP 28655A at a Glance Product Description This Book Table of Contents Page Installing HP 28642A/28655AAdapter Lnstalllng the HP 28642A/28655A Adapter Verify Product Contents Prepare to Install the Adapter CardObserve Antlstatic Precautions Record Adapter Card Identification Information Gather Tools and Accessories Needed Table l-l. Scsi Cables LengthsDescription meters Dependent requirements that are not noted herePeripheral to 92222A Shut Down the System and SwZtch Off the Computer Data corruption Installing the AdapterRemove Create Check the Card’s Hardware Configuration Set the Desired Parity-Checking CapabUity Figure l-4. Default Switch Settings Installing the Adapter Set the Scsi Bus Address = closed = open Installing the Adapter l-9Scsi Bus Address Two resistor packsmust be installed Verify that Resistor Packs are Properly Installed Select an Appropriate Slot Install and Connect the Card HP-Pa Standard Power Symbol Systemperformance implications, if any Record the Slot NumberComputer hardware limitations for l/O cards, if any Prepare the Slot For Use Ignment Hole Page Insert the Card into the Slot Card guides. If the problem persists,get help Attach the Card Cables Supplied with this product provides a thumbscrew connector Connect Your Peripheral Devices Installing the Adapter l-19Connect Your Single-Ended Scsi Devices Properly on the SCSIbus Terminate the Scsi Bus Device operation on the SCSIbus Scsi Cable Length Example 12. Scsi Bus Example Installing the Adapter Connect Your Parallel Device, If Applicable TurnPowerOn to Peripherals, Then to the ComputerReassemble your computer Two meters In/Out Signal Name24Installing the Adapter Pin25 Data corruption or loss,or damageto hardware Turn Power On to Peripherals, Then to the Computer MPE XL Systems Set Up the Operating SystemHP-UX Systems Verify Operation ServiceInformation Service Information Exchange adapter card assembly Exchange AssemblyField Replaceable Units Flgure 2-1. Location of Board Component FRUs Other FRUs Board Components Self-lestFailure Troubleshooting ToolsShould be performed by authorized servicepersonnel only Operation. Refer to your systemreference manuals Boot failure occursSelf-Test Failure LED Troubleshooting Checklist Scsipba and Centpba Diagnostics Does any device require a special SCSIterminator? Removal/Replacement Instructions For card removal, follow the procedures below Removal/Replacement of the Card Minimize touching the connector pins Removal/Replacement of Card ComponentsAlso be determined from the,scsipbadiagnostic Service Information 2-l Type and rating Damagewasextensive, you may need a new component Can continue to operate normally DiagnosticFlgure 2-3. Replacing the Termpwr Fuse Service Information Reshipment Guidelines 1green Technical SpecificationsGeneral IPhysical IEnvironmental IElectrical +5 Vdc American National StandardsInstitute Backplane ConfigurationGlossary FRU HP-PB Host adapter Seeadapter Precision Bus See HP-PB Complies with the Scsi specification X3.131 GlossaryParallel port SCSI-2 Termination Index t Index Card version...14 Cable Part number...2-3 Field replaceable units se-eFRUS Identification information...l-4 installingFRUs...2-3 HP Precision Bus SeeHP-PB HP-PB Loopback hood...2-4 Physical specifications...2-16 Index Product contents...13 PowerResistor pack...&10 Self-test failure LED...2-6 shut down During installation/removal..J-6,1-19,2-10 Storing adapter cards...l-3 switchTroubleshooting..2-8 Ylrlbo~ 5960-3126 El091