Troubleshooting Tools, Self-lestFailure | HP 28642A specification

Troubleshooting Tools

Troubleshooting tools are used to identify faulty FRUs. For this product, the following tools are describedbelow

B Self-Test failure LED (seefigure 2-2)

nTERMPWR LED (seefigure 2-2)

8 scsipbaandcentpba diagnostics H Troubleshooting checklist

CAUTION	In somesystems,the light emitting diodes (LEDs) on the card may not
	be visible without exposing the I/O cardcage. Unless otherwise
	permitted, operating the computer systemwith the I/O cardcageexposed
	should be performed by authorized servicepersonnel only.

Self-lestFailure

LED (vellow)

Figure 2-2. Location of LEDs

Service Information 2-5

Image 42

HP 28642A manual Troubleshooting Tools, Should be performed by authorized servicepersonnel only, Self-lestFailure

Contents

HP 28642A HP-PB Scsi HP 28655A HP-PB SCSI/ Parallel HP HP 5960-3126 El091 Safety Considerations @Hewlett-Packard Company, 1991. AI1rights rcservcdPrint History 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 Prepare to Install the Adapter Card Observe Antlstatic PrecautionsVerify Product Contents Gather Tools and Accessories Needed Record Adapter Card Identification Information Dependent requirements that are not noted here Peripheral to 92222ATable l-l. Scsi Cables LengthsDescription meters Remove Data corruption Installing the AdapterShut Down the System and SwZtch Off the Computer Create Check the Card’s Hardware Configuration Figure l-4. Default Switch Settings Installing the Adapter Set the Desired Parity-Checking CapabUity Scsi Bus = closed = open Installing the Adapter l-9Set the Scsi Bus Address Address Verify that Resistor Packs are Properly Installed Two resistor packsmust be installed Install and Connect the Card Select an Appropriate Slot HP-Pa Standard Power Symbol Record the Slot Number Computer hardware limitations for l/O cards, if anySystemperformance implications, if any Prepare the Slot For Use Ignment Hole Page Card guides. If the problem persists,get help Insert the Card into the Slot Supplied with this product provides a thumbscrew connector Attach the Card Cables Connect Your Single-Ended Scsi Devices Installing the Adapter l-19Connect Your Peripheral Devices Properly on the SCSIbus Terminate the Scsi Bus Device operation on the SCSIbus 12. Scsi Bus Example Installing the Adapter Scsi Cable Length Example Reassemble your computer TurnPowerOn to Peripherals, Then to the ComputerConnect Your Parallel Device, If Applicable Two meters Signal Name 24Installing the AdapterIn/Out Pin25 Turn Power On to Peripherals, Then to the Computer Data corruption or loss,or damageto hardware Set Up the Operating System HP-UX SystemsMPE XL Systems Verify Operation ServiceInformation Service Information Field Replaceable Units Exchange AssemblyExchange adapter card assembly Flgure 2-1. Location of Board Component FRUs Board Components Other FRUs Troubleshooting Tools Should be performed by authorized servicepersonnel onlySelf-lestFailure Boot failure occurs Self-Test Failure LEDOperation. Refer to your systemreference manuals Scsipba and Centpba Diagnostics Troubleshooting Checklist Does any device require a special SCSIterminator? Removal/Replacement Instructions Removal/Replacement of the Card For card removal, follow the procedures below Also be determined from the,scsipbadiagnostic Removal/Replacement of Card ComponentsMinimize touching the connector pins Service Information 2-l Damagewasextensive, you may need a new component Type and rating Diagnostic Flgure 2-3. Replacing the Termpwr Fuse Service InformationCan continue to operate normally Reshipment Guidelines Technical Specifications General1green IElectrical +5 Vdc IPhysical IEnvironmental Configuration GlossaryAmerican National StandardsInstitute Backplane FRU Host adapter Seeadapter HP-PB Complies with the Scsi specification X3.131 Glossary Parallel portPrecision Bus See HP-PB SCSI-2 Termination Index Index t Cable Card version...14 FRUs...2-3 Identification information...l-4 installingPart number...2-3 Field replaceable units se-eFRUS HP Precision Bus SeeHP-PB HP-PB Physical specifications...2-16 Index Loopback hood...2-4 Resistor pack...&10 PowerProduct contents...13 Self-test failure LED...2-6 shut down Troubleshooting..2-8 Storing adapter cards...l-3 switchDuring installation/removal..J-6,1-19,2-10 Ylrlbo~ 5960-3126 El091