Manuals / Agilent Technologies / Home Audio / Stereo System

Agilent Technologies 6634B, 66332A, 6633B, 6632B Safety Symbol Definitions, Description

Models: 6632B 6633B 66332A 6634B

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	Safety Symbol Definitions
Symbol	Description
	Direct current

	Alternating current

	Both direct and alternating current

	Three-phase alternating current

	Earth (ground) terminal

	Protective earth (ground) terminal

	Frame or chassis terminal

	Terminal is at earth potential (Used for measurement and control circuits designed to be
	operated with one terminal at earth potential.)

	Terminal for Neutral conductor on permanently installed equipment

	Terminal for Line conductor on permanently installed equipment

	On (supply)

	Off (supply)

	Standby (supply)
	Units with this symbol are not completely disconnected from ac mains when this switch
	is off. To completely disconnect the unit from ac mains, either disconnect the power
	cord or have a qualified electrician install an external switch.
	In position of a bi-stable push control

	Out position of a bi-stable push control

	Caution, risk of electric shock

	Caution, hot surface

	Caution (refer to accompanying documents)

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Agilent Technologies 6634B, 66332A, 6633B, 6632B service manual Safety Symbol Definitions, Description

Contents

System DC Power Supply Agilent Model 66332ADynamic Measurement DC Source and Agilent Model 6632B, 6633B, 6634BWarranty Information WARRANTYLIMITATION OF WARRANTY CERTIFICATIONSafety Summary BEFORE APPLYING POWERDO NOT SERVICE OR ADJUST ALONE SAFETY SYMBOLSSymbol Safety Symbol DefinitionsDescription Printing History Instrument IdentificationTable of Contents TROUBLESHOOTINGINTRODUCTION VERIFICATION AND PERFORMANCE TESTSREPLACEABLE PARTS LIST DIAGRAMSPRINCIPLES OF OPERATION INDEXPage Safety Considerations IntroductionOrganization Related DocumentsRevisions Electrostatic DischargeManual Revisions Firmware RevisionsIntroduction Verification and Performance TestsTest Equipment Required Test Setup Figure 2-1.Test SetupMeasurement Techniques 2 - Verification and Performance TestsOperation Verification Tests Performance TestsElectronic Load Current-MonitoringResistorCV Setup Constant Voltage CV TestsVoltage Programming and Readback Accuracy CV Load EffectCV Noise PARD CV Source EffectVerification and Performance Tests Transient Recovery Time CC SetupConstant Current CC Tests Current Programming and Readback AccuracyCurrent Sink -CCOperation Low Range Current Readback AccuracyCC Load and Line Regulation Verification and Performance TestsCC Source Effect CC Load Effect2 - Verification and Performance Tests CC Noise PARD Performance Test Equipment FormVerification and Performance Tests Performance Test Record Forms 2 - Verification and Performance TestsVerification and Performance Tests 2 - Verification and Performance Tests Troubleshooting IntroductionOverall Troubleshooting Flow Charts3 - Troubleshooting Test Equipment RequiredTroubleshooting Figure 3-1Sheet 1. Main FlowchartFigure 3-1Sheet 2. Main Flowchart continued 3 - TroubleshootingFigure 3-1Sheet 3. Main Flowchart continued TroubleshootingFigure 3-1Sheet 4. OV at Turn-On 3 - TroubleshootingFigure 3-1Sheet 5. OV at Turn-Oncontinued TroubleshootingFigure 3-1Sheet 6. FS Indicated but Fuse OK 3 - TroubleshootingFigure 3-1Sheet 7. No Output Voltage TroubleshootingFigure 3-1Sheet 8. No Output Voltage continued 3 - TroubleshootingFigure 3-1Sheet 9 No Output Voltage continued TroubleshootingFigure 3-1Sheet 10. No Current Limit 3 - TroubleshootingFigure 3-1Sheet 11. Unit Does Not OV TroubleshootingFigure 3-1Sheet 12. High Output Voltage 3 - TroubleshootingSpecific Troubleshooting Procedures Power-on Self-testFailuresTable 3-2. Self-TestError Codes/Messages TroubleshootingCV/CC Status Annunciators Troubleshooting Bias and Rail VoltagesTable 3-3.Bias and Reference Voltages 3 - TroubleshootingJ307 Voltage Measurements TroubleshootingManual Fan Speed Control Disabling Protection Features3 - Troubleshooting Inhibit Calibration Switch Calibration PasswordPost-repairCalibration TroubleshootingROM Upgrade Upgrade ProcedureInitialization Identifying the FirmwareDisassembly Procedures List of Required ToolsFigure 3-2.Component Location TroubleshootingCover, Removal and Replacement A2 Interface Board, Removal and ReplacementFront Panel Assembly, Removal and Replacement 3 - TroubleshootingS1 Line Switch, Removal and Replacement A3 Front Panel Board, Removal and ReplacementT1 Power Transformer, Removal and Replacement A1 Main Control BoardFigure 3-3.Transformer Wiring Line Voltage Wiring3 - Troubleshooting I/O Interface Signals Table 4-1.Power Supply Interface signalsPrinciples of Operation IntroductionA3 Front Panel Circuits A2 Interface CircuitsPrimary Interface Secondary InterfaceFigure 4-1.A2/A3 Block Diagram Principles of OperationA1 Main Board Circuits Power Circuits4 - Principles of Operation Figure 4-2.A1 Block Diagram Principles of OperationControl Circuits 4 - Principles of OperationPrinciples of Operation Page Table 5-1.Chassis, Electrical Replaceable Parts ListIntroduction 5 - Replaceable Parts Table 5-2.Chassis, MechanicalReplaceable Parts Figure 5-1.Mechanical Parts ldentificationTable 5-3.A1 Control Board PC Board Assembly 5 - Replaceable PartsReplaceable 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 5-4.Binding Post Option #020 Table 5-5.A5 AC input/RFI BoardTable 5-6.Relay Option #760 5 - Replaceable PartsDiagrams General Schematic NotesTable 6-1. Model-dependentComponents Introduction6 - Diagrams Table 6-1. Model-dependentComponents continuedDiagrams Table 6-2.A1 Board Component LocationsTable 6-2continued 6 - DiagramsFigure 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