Agilent Technologies 5071A manual Replaceable Parts, Exchange Assemblies

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Assembly-Level Service

Replaceable Parts

Replaceable Parts

This section describes the additions, changes, and deletions to the information that appears in chapter 5 of the 5071A Primary Frequency Standard Assembly-Level Service manual.

Exchange Assemblies

Table 5-1. A9 Telecommunications Options (TCO) Exchange Assemblies

Any TCO Option: The part number and exchange part number for A9 are as follows for the eight different telecommunications options:

TCO Option

104

105

220

221

222

270

271

272

Part Number

05071-60276

05071-60281

05071-60286

05071-60287

05071-60288

05071-60289

05071-60273

05071-60290

Exchange Part Number

05071-69276

05071-69281

05071-69286

05071-69287

05071-69288

05071-69289

05071-69273

05071-69290

Option 048: The part number for A1 is 05071-60028 when option 048 is present.

Option 048: The part number for A11 is 05071-60033 when option 048 is present.

Option 048: The part number for A12 is 05071-60279 when option 048 is present,

Option 048: The 48V Subpanel Assembly illustrated by the schematic diagram shown in Figure 2-1 is part number 05071-60277.

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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 ManualInstruments Covered by This manual How to Order ManualsManual Organization 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 TasksDisabling the Internal -Standby Battery Using the 5071AMonitoring Status 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 Performance Tests Rear-Panel Output Signal Checks5071A Operational Verification Assembly Identification and Location ServiceOption Top-Level Diagnostic Tree Diagnostic Section Top-Level Diagnostic Tree OrganizationFirst Power On 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 Test6.0 A9 J4 80-MHz Signal Test A9 Diagnostic Tree A/M Subsection 5.0 A9 Mon Signal Test4.1 A9-to-Chassis TCO Option signal Interconnect Test A1 Motherboard Circuit Description Theory of OperationIntroduction Simplified Functional DescriptionFunctional Block Descriptions Power Supply BlockInput/Output Block Instrument Control Block Operating Firmware Warning ModeReference Oscillator/RF-Chain Block Interconnections Power Supply Block Overvoltage Protection Circuit A1 Motherboard Circuit DescriptionExternal Dc Input 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