Agilent Technologies 5071A manual How to Use This Manual, Instrument Identification

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Preface

This manual provides operating, programming, and assembly-level service information for the HP 5071A Primary Frequency Standard Telecommunications options.

How to Use This Manual

Telecommunications option information is presented as changes, additions, and deletions to the material covered in the HP 5071A Operating and Programming and Assembly-Level Service manuals. The information appears in sequential order of occurrence corresponding to the subject headings that are affected by the options.

Each occurrence of telecommunications option information uses the following presentation format:

Subject heading(s): a. Left-justified option designation where: Option 048 = 48 Vdc power option, and Any TCO Option = Telecommunications output options 104, 105, 220, 221, 222, 270, 271, or 272.

b. Text information explanation for either HP 5071A manual, and/or,

c. Corrected text information for the cited subject heading(s)

Except for the rear-panel illustration in chapter 1 of the HP 5071A Operating and Programming manual and Figure 2-1, all changes and corrections to manual illustrations appear as descriptive text items that convey new, changed, or deleted information about the artwork.

The structure of topics covered corresponds to the outlines of the HP 5071A Operating and Programming and Assembly-Level Service manual except for specifications which occupies its own chapter. (See manual organization below.)

Instrument Identification

Instrument identification is made from the serial number located on the rear panel of the HP 5071A. Agilent uses a two-part serial number with the first part (prefix) identifying a series of instruments and the second part (suffix) identifying a particular instrument within a series. An Agilent assigned alpha character between the prefix and suffix identifies the country in which the instrument was manufactured.

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Contents 7HOHFRPPXQLFDWLRQV2SWLRQV Page Telecommunications Options Supplemental Manual Before Cleaning Manual Updating Changes 05071-90042, December Contents Service Available Accessories and Options Supplemental CharacteristicsContents Instrument Identification How to Use This ManualManual Organization How to Order ManualsInstruments Covered by This manual Operating and Programming Operating The 5071A 5071A Major FeaturesIntroduction Introducing the 5071ARear-Panel Connections ConnectorsGetting Started 5071A at a Glance5071A Rear Panel Connections Fuse Synchronizing to an External 1 PPS Reference Powering Down the 5071AStarting The 5071A Performing Basic TasksMonitoring Status Using the 5071ADisabling the Internal -Standby Battery Restarting the 5071A Front-Panel Indicators and MessagesRear-Panel Output Connectors Case of DifficultyScpi Commands 5071A Command References5071A Command Summary Scpi Subsystem CommandsSpecifications Preparation for Use InstallationPower Requirements Operating the 5071A From External Dc PowerPreparing the RP 5071-A For External-Dc Operation Internal Standby Battery MaintenanceReplacing the External Dc Input Power Fuse Long-Term StorageAssembly-Level Service 5071A Operational Verification Rear-Panel Output Signal ChecksPerformance Tests Option ServiceAssembly Identification and Location First Power On Top-Level Diagnostic Tree OrganizationTop-Level Diagnostic Tree Diagnostic Section Warm-up and Fatal Error Diagnostic Tree Advisory Messages Subsection Power-Supply Diagnostic TreeInternal-Battery Charger Test Ac-Line Fuse Fault Isolation r/o LF1/T14.0.0 Ext. Dc Input Fuse Fault No Operation From Internal Standby Battery5 A8-to-Chassis Interconnect Test Assembly/Module Diagnostic Trees Diagnostic SectionA8 Diagnostic Tree A/M Subsection 3 1 PPS Outputs Test 4 A8 Front/Rear-Panel Sync Input Test4.1 A9-to-Chassis TCO Option signal Interconnect Test A9 Diagnostic Tree A/M Subsection 5.0 A9 Mon Signal Test6.0 A9 J4 80-MHz Signal Test A1 Motherboard Circuit Description Theory of OperationIntroduction Simplified Functional DescriptionInput/Output Block Power Supply BlockFunctional Block Descriptions Instrument Control Block Operating Firmware Warning ModeReference Oscillator/RF-Chain Block Interconnections Power Supply Block External Dc Input Circuit A1 Motherboard Circuit DescriptionOvervoltage Protection Circuit A1 Power Supply/Distribution Schematic Diagram A11 Power Steering Logic AssemblyInput Chassis Ground 48V Subpanel AssemblyA1 Power-Supply Block Diagram B1 Internal-Standby BatteryExchange Assemblies Replaceable PartsReplaceable Parts Backdating Backdating Specifications Environmental Supplemental CharacteristicsInternal Standby Battery Nominal Values Time StandardAccessories Furnished Dc input connector WeightOptions Available Accessories and OptionsService and Support From front matter Declaration of Conformity Page Page Manual Part Number