Agilent Technologies 5071A manual Instrument Control Block, Operating Firmware Warning Mode

Page 36

Assembly-Level Service

Theory of Operation

Figure 3-2. 5071 A Overall Block Diagram (Continued)

Any TCO Option: The A8 1 PPS Assembly has the following input/output changes:

Input B is deleted.

Both rear-panel 1 PPS outputs are deleted.

Option 048: The Power-Supply Block has the following changes:

The DC Power input voltage is changed from 22-42V to 40-58V

The B1 24V Battery and A11 Battery Charger are deleted.

Instrument Control Block

Operating Firmware: Warning Mode

Option 048: The first sentence of the Warning Mode description at the top of page

3-14 is changed:

The warning mode occurs when the health monitor detects a possible problem.

Reference Oscillator/RF-Chain Block

Any TCO Option: The third paragraph on page 3-15 that describes A9 has an additional sentence:

In addition, all telecommunications options sync input and outputs are routed to and synthesized within the A9 module.

2-12

Image 36

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