Agilent Technologies 5071A manual Reference Oscillator/RF-Chain Block Interconnections

Page 37

Assembly-Level Service

Theory of Operation

Table 3-2. Reference Oscillator/RF-Chain Block Interconnections

Any TCO Option: The following interconnection information is added to table 3-2 on page

3-16:

Source Module or Assembly

A9

A9

A9

From Path Connectors

N/A

N/A

N/A

Signal Name

Telecommunications 8 kHz Sync Input

Telecommunications 8 kHz Sync Out

Telecommunications Framed Output

To Path Connectors

A9J7

A9J8

Opt 27n:

A9J10

Opt 104, 105, and 22n:

A9J9-A9J10

Destination

Module or

Assembly

8 kHz Sync Input, Rear Panel

8 kHz Sync Out, Rear Panel

Framed Output, Rear Panel

A9

A9

N/A

N/A

Telecommunications Sync Out, G.703/10

Telecommunications Sync Out, 50Ω TTL

A9J11

A9J6

Sync Out, G.703/10 Rear Panel

Sync out 50Ω TTL, Rear Panel

Input/Output Block

Table 3-5. Input/Output Block Interconnections

Any TCO Option: The third paragraph on page 3-21 that describes A8 is changed:

A8 has four inputs and two outputs. An 80 MHz input from A9 is used with I-bus command I/O to generate: a. 1-MHz system clock signal sent to A2, 4, 6, and 7, and b. one front-panel 1 PPS output. In addition, a front-panel Sync input connector is used with I-bus command signals to synchronize the instrument’s 1-pps output to external events and systems.

Any TCO Option: The following information is deleted from table 3-5 on page 3-21:

•Second row describing the rear-panel Sync Input,

•Seventh and eight rows concerning the rear-panel 1 pps outputs.

2-13

Image 37

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 Introduction 5071A Major FeaturesIntroducing the 5071A Operating The 5071AGetting Started Connectors5071A at a Glance Rear-Panel Connections5071A Rear Panel Connections Fuse Starting The 5071A Powering Down the 5071APerforming Basic Tasks Synchronizing to an External 1 PPS ReferenceDisabling the Internal -Standby Battery Using the 5071AMonitoring Status Rear-Panel Output Connectors Front-Panel Indicators and MessagesCase of Difficulty Restarting the 5071A5071A Command Summary 5071A Command ReferencesScpi Subsystem Commands Scpi CommandsSpecifications Power Requirements InstallationOperating the 5071A From External Dc Power Preparation for UseReplacing the External Dc Input Power Fuse Internal Standby Battery MaintenanceLong-Term Storage Preparing the RP 5071-A For External-Dc OperationAssembly-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 Tree4.0.0 Ext. Dc Input Fuse Fault Ac-Line Fuse Fault Isolation r/o LF1/T1No Operation From Internal Standby Battery Internal-Battery Charger TestA8 Diagnostic Tree A/M Subsection 3 1 PPS Outputs Test Assembly/Module Diagnostic Trees Diagnostic Section4 A8 Front/Rear-Panel Sync Input Test 5 A8-to-Chassis Interconnect 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 Introduction Theory of OperationSimplified Functional Description A1 Motherboard Circuit 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 Internal Standby Battery Nominal Values Supplemental CharacteristicsTime Standard EnvironmentalAccessories Furnished Dc input connector WeightOptions Available Accessories and OptionsService and Support From front matter Declaration of Conformity Page Page Manual Part Number