Manuals / Agilent Technologies / Home Audio / Stereo System

Agilent Technologies 66332A, 6634B, 6633B 1Sheet 9 No Output Voltage continued, Troubleshooting

Models: 6632B 6633B 66332A 6634B

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Figure 3-1 Sheet 9 No Output Voltage (continued)

Troubleshooting - 3

Continued from sheet 7

CV_Prog @ R401			Check W7, A2
		No	Check W7, A2
		No	Interface Board
-4.7V			Interface Board
-4.7V
?
?


	Yes

VMon,			Check Voltage Monitor
U315B-7		No	Amplifier, U315B,
U315B-7		No	Amplifier, U315B,
~0V			circuit
?
?


	Yes

Check Voltage Control,
Circuit U315A

Figure 3-1 Sheet 9 No Output Voltage (continued)

Page 33

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Agilent Technologies 66332A, 6634B, 6633B, 6632B service manual 1Sheet 9 No Output Voltage continued, Troubleshooting

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