Agilent Technologies 5071A Instruments Covered by This manual, Manual Organization

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Preface

Instruments Covered by This manual

This manual applies to any HP 5071A Primary Frequency Standard that is equipped with one or more of the telecommunications options shown on the title page and has the same serial number prefix(es) also shown on the title page. If the serial number prefix of your standard differs from that listed on the title page of this manual, then there may be differences between this manual and your instrument.

Instruments having a higher serial prefix are covered when required by one or more manual-change sheets included with this manual. If a required change sheet is missing, contact your nearest Agilent Sales Office listed at the back of this manual.

Manual Organization

This telecommunication options supplemental manual consists of a table of contents, preface, and three chapters. The page running headers identify the chapters and sections of this manual. The chapter contents are summarized as follows:

Chapter 1,

Chapter 2,

Operating and Programming, is divided into seven sections: Introduction, Getting Started, Using the 5071A, In Case of Difficulty, HP 5071A Command References, and Installation.

Assembly-Level Service, is divided into five sections: Performance Tests, Service, Theory of Operation, Replaceable Parts, and Backdating.

Chapter 3, Specifications, is divided into two sections: Supplemental Characteristics, and Available Accessories and Options.

How to Order Manuals

This manual’s part number is 05071-90031. Use it to order copies of this manual. The HP 5071A Operating and Programming manual part number is 05071-90029. The HP 5071A Assembly-Level Service manual part number is 05071-90003.

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Contents 7HOHFRPPXQLFDWLRQV2SWLRQV Page Telecommunications Options Supplemental Manual Before Cleaning Manual Updating Changes 05071-90042, December Contents Service Supplemental Characteristics Available Accessories and OptionsContents How to Use This Manual Instrument IdentificationHow to Order Manuals Instruments Covered by This manualManual Organization Operating and Programming 5071A Major Features IntroductionIntroducing the 5071A Operating The 5071AConnectors Getting Started5071A at a Glance Rear-Panel Connections5071A Rear Panel Connections Fuse Powering Down the 5071A Starting The 5071APerforming Basic Tasks Synchronizing to an External 1 PPS ReferenceUsing the 5071A Disabling the Internal -Standby BatteryMonitoring Status Front-Panel Indicators and Messages Rear-Panel Output ConnectorsCase of Difficulty Restarting the 5071A5071A Command References 5071A Command SummaryScpi Subsystem Commands Scpi CommandsSpecifications Installation Power RequirementsOperating the 5071A From External Dc Power Preparation for UseInternal Standby Battery Maintenance Replacing the External Dc Input Power FuseLong-Term Storage Preparing the RP 5071-A For External-Dc OperationAssembly-Level Service Rear-Panel Output Signal Checks Performance Tests5071A Operational Verification Service Assembly Identification and LocationOption Top-Level Diagnostic Tree Organization Top-Level Diagnostic Tree Diagnostic SectionFirst Power On Warm-up and Fatal Error Diagnostic Tree Power-Supply Diagnostic Tree Advisory Messages SubsectionAc-Line Fuse Fault Isolation r/o LF1/T1 4.0.0 Ext. Dc Input Fuse FaultNo Operation From Internal Standby Battery Internal-Battery Charger TestAssembly/Module Diagnostic Trees Diagnostic Section A8 Diagnostic Tree A/M Subsection 3 1 PPS Outputs Test4 A8 Front/Rear-Panel Sync Input Test 5 A8-to-Chassis Interconnect TestA9 Diagnostic Tree A/M Subsection 5.0 A9 Mon Signal Test 6.0 A9 J4 80-MHz Signal Test4.1 A9-to-Chassis TCO Option signal Interconnect Test Theory of Operation IntroductionSimplified Functional Description A1 Motherboard Circuit DescriptionPower Supply Block Functional Block DescriptionsInput/Output Block Operating Firmware Warning Mode Instrument Control BlockReference Oscillator/RF-Chain Block Interconnections Power Supply Block A1 Motherboard Circuit Description Overvoltage Protection CircuitExternal Dc Input Circuit A11 Power Steering Logic Assembly A1 Power Supply/Distribution Schematic Diagram48V Subpanel Assembly Input Chassis GroundB1 Internal-Standby Battery A1 Power-Supply Block DiagramReplaceable Parts Exchange AssembliesReplaceable Parts Backdating Backdating Specifications Supplemental Characteristics Internal Standby Battery Nominal ValuesTime Standard EnvironmentalWeight Accessories Furnished Dc input connectorAvailable Accessories and Options OptionsService and Support From front matter Declaration of Conformity Page Page Manual Part Number