Agilent Technologies 5962-8200 service manual Sheet 4. Troubleshooting Flowchart

Page 32

3 - Troubleshooting

From Sheet 3

Connect controller to the

HPIB port and send commands to set the output voltage and current and readback the output.

Accepts and reads

 

No

 

back?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

Replace A2

Run the Performance

Test in Chapter 2.

Passes test?

No

Yes

Regulation, Transient Response and ripple problems are generally caused by A1

Short RI terminals on rear of supply and insure output disables and Prot annunciator comes on.

Remote Inhibit

No

OK?

 

Yes

There is either no fault with the power supply or the problem is not covered by this procedure.

Replace A2

Figure 3-1 Sheet 4. Troubleshooting Flowchart

32

Image 32
Contents Agilent Part No Microfiche No September Warranty Information CertificationSafety Summary Before Applying PowerSafety Symbol Definitions Symbol DescriptionPrinting History Instrument IdentificationTable of Contents Initialization ROM Upgrade Disassembly ProceduresPost-repair Calibration IntroductionPage Safety Considerations OrganizationRelated Documents ChapterRevisions Electrostatic DischargeManual Revisions Firmware RevisionsIntroduction Test Equipment RequiredMeasurement Techniques Test SetupType Specifications Recommended Model Test Setup Electronic LoadOperation Verification Tests Performance TestsCurrent-Monitoring Resistor ProgrammingCV Setup Constant Voltage CV TestsVoltage Programming and Readback Accuracy CV Load EffectCV Noise Pard Transient Recovery TimeCV Source Effect Current Programming and Readback Accuracy CC SetupConstant Current CC Tests Current Sink -CC Operation Low Range Current Readback AccuracyCC Load and Line Regulation CC Load EffectCC Source Effect CC Noise PardPerformance Test Equipment Form Load Effect Source Effect Pard Ripple and Noise Transient ResponseConstant Current Tests Current Programming and Readback Current Sink @ -3A Readback MA Range Current ReadbackVout − Load Effect Vout − Vout + 2.0mVSource Effect Vout − Iout −Vout + 4 mV Iout − Iout + 0.2 mAIout − Iout + 2.2 mA Current Sink @ -0.6A Readback Iout −Load Effect Vout − Vout + 5 mV Iout − Iout + 0.1 mAIout − Iout + 1.1 mA Current Sink @ -0.3A Readback Iout −Page Troubleshooting Overall Troubleshooting Flow ChartsTest Equipment Required for Troubleshooting Type Purpose Recommended ModelSheet 1. Troubleshooting Flowchart Sheet 2. Troubleshooting Flowchart Sheet 3. Troubleshooting Flowchart Sheet 4. Troubleshooting Flowchart Specific Troubleshooting Procedures Power-on Self-test FailuresSelf-Test Error Codes/Messages Error Code Description Probable CauseCV/CC Status Annunciators Troubleshooting Bias and Reference SuppliesBias and Reference Voltages Bias Test Point MeasurementJ307 Voltage Measurements Voltage Measurements at J207 A2 Interface to A1 Main boardDisabling Protection Features Manual Fan Speed ControlPost-repair Calibration Inhibit Calibration SwitchCalibration Password ROM Upgrade Upgrade ProcedureInitialization Identifying the FirmwareDisassembly Procedures List of Required ToolsFront Panel Assembly, Removal and Replacement Cover, Removal and ReplacementA2 Interface Board, Removal and Replacement A1 Main Control Board A3 Front Panel Board, Removal and ReplacementT1 Power Transformer, Removal and Replacement Line Voltage Wiring Connector Signal Description Interface SignalsPower Supply Interface signals A3 Front Panel Circuits A2 Interface CircuitsPrimary Interface Secondary InterfacePower Circuits A1 Main Board CircuitsControl Circuits Principles of Operation Page Chassis, Electrical Designator PartNumber Qty DescriptionReplaceable Parts List Mechanical Parts Identification Chassis, Mechanical MP9Diagrams Diagrams A2/A3 Boards Block Diagram Bias CircuitsIndex Index