Agilent Technologies 5962-8200 service manual Disassembly Procedures, List of Required Tools

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Troubleshooting - 3

Disassembly Procedures

The following paragraphs provide instructions on how to disassemble various components of the dc power supply. Once disassembled, the components can be reassembled by performing the disassembly instructions in reverse order. Figure 3-2 shows the location of the major components of the unit.

	Figure 3-2. Component Location

WARNING:	SHOCK HAZARD. To avoid the possibility of personal injury, turn off AC power and
	disconnect the line cord before removing the top cover. Disconnect the GPIB cable and
	any loads, and remote sense leads before attempting disassembly.


CAUTION:	Most of the attaching hardware is metric. Use of other types of fasteners will damage
	threaded inserts. Refer to the list of required tools when performing disassembly and
	replacement.

List of Required Tools

a.2PT Pozidriv screwdrivers.

b.T10 and T15 Torx screwdrivers.

c.Hex drivers: 7 mm for GPIB connector, 3/16" for RS-232 connector, 1/4" for front panel binding posts

d.Long nose pliers.

e.Antistatic wrist discharge strap.

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Contents Agilent Part No Microfiche No September Certification Warranty InformationBefore Applying Power Safety SummarySymbol Description Safety Symbol DefinitionsInstrument Identification Printing HistoryTable of Contents Introduction Initialization ROM UpgradeDisassembly Procedures Post-repair CalibrationPage Chapter Safety ConsiderationsOrganization Related DocumentsFirmware Revisions RevisionsElectrostatic Discharge Manual RevisionsTest Equipment Required IntroductionTest Setup Type Specifications Recommended ModelMeasurement Techniques Electronic Load Test SetupProgramming Operation Verification TestsPerformance Tests Current-Monitoring ResistorCV Load Effect CV SetupConstant Voltage CV Tests Voltage Programming and Readback AccuracyTransient Recovery Time CV Source EffectCV Noise Pard CC Setup Constant Current CC TestsCurrent Programming and Readback Accuracy Low Range Current Readback Accuracy Current Sink -CC OperationCC Load Effect CC Load and Line RegulationCC Noise Pard CC Source EffectPerformance Test Equipment Form Current Sink @ -3A Readback MA Range Current Readback Load Effect Source Effect Pard Ripple and NoiseTransient Response Constant Current Tests Current Programming and ReadbackIout − Vout −Load Effect Vout − Vout + 2.0mV Source Effect Vout −Current Sink @ -0.6A Readback Iout − Vout + 4 mVIout − Iout + 0.2 mA Iout − Iout + 2.2 mACurrent Sink @ -0.3A Readback Iout − Load Effect Vout − Vout + 5 mVIout − Iout + 0.1 mA Iout − Iout + 1.1 mAPage Troubleshooting Type Purpose Recommended Model Overall TroubleshootingFlow Charts Test Equipment Required for TroubleshootingSheet 1. Troubleshooting Flowchart Sheet 2. Troubleshooting Flowchart Sheet 3. Troubleshooting Flowchart Sheet 4. Troubleshooting Flowchart Error Code Description Probable Cause Specific Troubleshooting ProceduresPower-on Self-test Failures Self-Test Error Codes/MessagesBias Test Point Measurement CV/CC Status Annunciators TroubleshootingBias and Reference Supplies Bias and Reference VoltagesVoltage Measurements at J207 A2 Interface to A1 Main board J307 Voltage MeasurementsManual Fan Speed Control Disabling Protection FeaturesInhibit Calibration Switch Calibration PasswordPost-repair Calibration Identifying the Firmware ROM UpgradeUpgrade Procedure InitializationList of Required Tools Disassembly ProceduresCover, Removal and Replacement A2 Interface Board, Removal and ReplacementFront Panel Assembly, Removal and Replacement A3 Front Panel Board, Removal and Replacement T1 Power Transformer, Removal and ReplacementA1 Main Control Board Line Voltage Wiring Interface Signals Power Supply Interface signalsConnector Signal Description Secondary Interface A3 Front Panel CircuitsA2 Interface Circuits Primary InterfaceA1 Main Board Circuits Power CircuitsControl Circuits Principles of Operation Page Designator PartNumber Qty Description Chassis, ElectricalReplaceable Parts List Mechanical Parts Identification MP9 Chassis, MechanicalDiagrams Diagrams A2/A3 Boards Block Diagram Circuits BiasIndex Index