Agilent Technologies 5071A manual Case of Difficulty, Front-Panel Indicators and Messages

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Operating and Programming

In Case of Difficulty

In Case of Difficulty

This section describes the additions, changes, and deletions to the information that appears in chapter 3 of the 5071A Operating and Programming manual.

Front-Panel Indicators and Messages

Table 3-1. Front-Panel Status Lights

Option 048: All references to internal-battery power, battery status, or battery operation are deleted.

Operating System Failure

Restarting the 5071A

Option 048: Step 3 of the procedure is deleted.

Option 048: Step 4 is renumbered and changed:

3. Reapply external dc or ac-line power.

Option 048: Step 5 becomes step 4.

Verifying Operation

2.Rear-Panel Output Connectors

Checking the Outputs

Any TCO Option: Step 1 of the procedure is changed:

1.Connect one of the 5071A outputs to an input channel of the 54600A with a 50Ω feed through termination and BNC cable. (When verifying rear-panel telecommunications outputs, use manual scope settings and the appropriate termination as shown on the rear-panel labels and in Table 1-1. The referenced rear- panel telecommunications outputs should comply with ITU-T

(formerly CCITT) G.703/6 (G.703/2 if option 104 or 105 is present), formatted per G.704. Sync Out complies per G.703/10, 75 Ω (Additionally @ 1.544 MHz if option 104 or 105 is present.

1-8

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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 IdentificationManual Organization How to Order ManualsInstruments Covered by This manual 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 ReferenceMonitoring Status Using the 5071ADisabling the Internal -Standby Battery 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 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 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 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 Theory of Operation IntroductionSimplified Functional Description A1 Motherboard Circuit DescriptionInput/Output Block Power Supply BlockFunctional Block Descriptions Operating Firmware Warning Mode Instrument Control BlockReference Oscillator/RF-Chain Block Interconnections Power Supply Block External Dc Input Circuit A1 Motherboard Circuit DescriptionOvervoltage Protection 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