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Agilent Technologies 66332A Introduction, Organization, Safety Considerations, Related Documents

Models: 6632B 6633B 66332A 6634B

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Introduction

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Introduction

Organization

This manual contains information for troubleshooting and repairing to the component level the Agilent Model 66332A Dynamic Measurement DC Source and the Agilent Model 6632B, 6633B, 6634B System DC Power Supplies. Hereafter all models will be referred to as the dc power supply.

This manual is organized as follows:

Chapter 1	Organization
Chapter 2	Performance tests
Chapter 3	Troubleshooting procedures
Chapter 4	Principles of operation on a block-diagram level
Chapter 5	Replaceable parts
Chapter 6	Diagrams

Safety Considerations

WARNING: Hazardous voltages exist within the dc power supply chassis.

This dc power supply; is a Safety Class I instrument, which means it has a protective earth terminal. This terminal must be connected to earth ground through a power source equipped with a 3-wire, ground receptacle. Refer to the "Safety Summary" page at the beginning of this manual for general safety information. Before operation or repair, check the dc power supply and review this manual for safety warnings and instructions. Safety warnings for specific procedures are located at appropriate places in the manual.

Related Documents

The following documents are shipped with your dc power supply:

aa User’s Guide, containing installation, operating, and calibration information

aa Programming Guide, containing detailed GPIB programming information.

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Agilent Technologies 66332A, 6634B, 6633B, 6632B Introduction, Organization, Safety Considerations, Related Documents

Contents

Agilent Model 66332A System DC Power SupplyDynamic Measurement DC Source and Agilent Model 6632B, 6633B, 6634BWARRANTY Warranty InformationLIMITATION OF WARRANTY CERTIFICATIONBEFORE APPLYING POWER Safety SummaryDO NOT SERVICE OR ADJUST ALONE SAFETY SYMBOLSSafety Symbol Definitions SymbolDescription Instrument Identification Printing HistoryTROUBLESHOOTING Table of ContentsINTRODUCTION VERIFICATION AND PERFORMANCE TESTSDIAGRAMS REPLACEABLE PARTS LISTPRINCIPLES OF OPERATION INDEXPage Introduction Safety ConsiderationsOrganization Related DocumentsElectrostatic Discharge RevisionsManual Revisions Firmware RevisionsVerification and Performance Tests IntroductionTest Equipment Required Figure 2-1.Test Setup Test SetupMeasurement Techniques 2 - Verification and Performance TestsPerformance Tests Operation Verification TestsElectronic Load Current-MonitoringResistorConstant Voltage CV Tests CV SetupVoltage Programming and Readback Accuracy CV Load EffectCV Source Effect CV Noise PARDVerification and Performance Tests CC Setup Transient Recovery TimeConstant Current CC Tests Current Programming and Readback AccuracyLow Range Current Readback Accuracy Current Sink -CCOperationCC Load and Line Regulation Verification and Performance TestsCC Load Effect CC Source Effect2 - Verification and Performance Tests Performance Test Equipment Form CC Noise PARDVerification and Performance Tests 2 - Verification and Performance Tests Performance Test Record FormsVerification and Performance Tests 2 - Verification and Performance Tests Introduction TroubleshootingFlow Charts Overall Troubleshooting3 - Troubleshooting Test Equipment RequiredFigure 3-1Sheet 1. Main Flowchart Troubleshooting3 - Troubleshooting Figure 3-1Sheet 2. Main Flowchart continuedTroubleshooting Figure 3-1Sheet 3. Main Flowchart continued3 - Troubleshooting Figure 3-1Sheet 4. OV at Turn-OnTroubleshooting Figure 3-1Sheet 5. OV at Turn-Oncontinued3 - Troubleshooting Figure 3-1Sheet 6. FS Indicated but Fuse OKTroubleshooting Figure 3-1Sheet 7. No Output Voltage3 - Troubleshooting Figure 3-1Sheet 8. No Output Voltage continuedTroubleshooting Figure 3-1Sheet 9 No Output Voltage continued3 - Troubleshooting Figure 3-1Sheet 10. No Current LimitTroubleshooting Figure 3-1Sheet 11. Unit Does Not OV3 - Troubleshooting Figure 3-1Sheet 12. High Output VoltagePower-on Self-testFailures Specific Troubleshooting ProceduresTable 3-2. Self-TestError Codes/Messages TroubleshootingBias and Rail Voltages CV/CC Status Annunciators TroubleshootingTable 3-3.Bias and Reference Voltages 3 - TroubleshootingTroubleshooting J307 Voltage MeasurementsDisabling Protection Features Manual Fan Speed Control3 - Troubleshooting Calibration Password Inhibit Calibration SwitchPost-repairCalibration TroubleshootingUpgrade Procedure ROM UpgradeInitialization Identifying the FirmwareList of Required Tools Disassembly ProceduresFigure 3-2.Component Location TroubleshootingA2 Interface Board, Removal and Replacement Cover, Removal and ReplacementFront Panel Assembly, Removal and Replacement 3 - TroubleshootingA3 Front Panel Board, Removal and Replacement S1 Line Switch, Removal and ReplacementT1 Power Transformer, Removal and Replacement A1 Main Control BoardLine Voltage Wiring Figure 3-3.Transformer Wiring3 - Troubleshooting Table 4-1.Power Supply Interface signals I/O Interface SignalsPrinciples of Operation IntroductionA2 Interface Circuits A3 Front Panel CircuitsPrimary Interface Secondary InterfacePrinciples of Operation Figure 4-1.A2/A3 Block DiagramPower Circuits A1 Main Board Circuits4 - Principles of Operation Principles of Operation Figure 4-2.A1 Block Diagram4 - Principles of Operation Control CircuitsPrinciples of Operation Page Replaceable Parts List Table 5-1.Chassis, ElectricalIntroduction Table 5-2.Chassis, Mechanical 5 - Replaceable PartsFigure 5-1.Mechanical Parts ldentification Replaceable Parts5 - Replaceable Parts Table 5-3.A1 Control Board PC Board AssemblyReplaceable Parts - 5 - Replaceable Parts Replaceable Parts 5 - Replaceable Parts Replaceable Parts 5 - Replaceable Parts Replaceable Parts 5 - Replaceable Parts Replaceable Parts 5 - Replaceable Parts Replaceable Parts Table 5-5.A5 AC input/RFI Board Table 5-4.Binding Post Option #020Table 5-6.Relay Option #760 5 - Replaceable PartsGeneral Schematic Notes DiagramsTable 6-1. Model-dependentComponents IntroductionTable 6-1. Model-dependentComponents continued 6 - DiagramsTable 6-2.A1 Board Component Locations Diagrams6 - Diagrams Table 6-2continuedFigure 6-1.A1 Board Component Locations Figure 6-2.A4 and A6 Board Component Locations Figure 6-3.A1 Board schematic sheet A1 Board schematic sheet A1 Board schematic sheet Figure 6-4.A6 Relay Option Board schematic Index