Agilent Technologies 6632B, 6634B, 66332A, 6633B 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 Post-repair Calibration Initialization ROM UpgradeDisassembly Procedures Introduction General Schematic Notes BackdatingPage Chapter Safety ConsiderationsOrganization Related DocumentsFirmware Revisions RevisionsElectrostatic Discharge Manual RevisionsTest Equipment Required IntroductionMeasurement Techniques Test SetupCurrent-Monitoring Resistor Operation Verification TestsPerformance Tests Electronic LoadCV Load Effect CV SetupConstant Voltage CV Tests Voltage Programming and Readback AccuracyCV Noise Pard CV Source EffectCurrent Programming and Readback Accuracy Transient Recovery TimeCC Setup Constant Current CC TestsLow Range Current Readback Accuracy Current Sink -CC OperationCC Load and Line Regulation CC Source Effect CC Load EffectCC Noise Pard Performance Test Equipment FormPerformance Test Record Forms Iout Iout + 4.3 mA Iout + 0.25 mAIout Iout + 2.3 mA Troubleshooting Type Purpose Recommended Model Overall TroubleshootingFlow Charts Test Equipment Required for TroubleshootingSheet 1. Main Flowchart Sheet 2. Main Flowchart Sheet 3. Main Flowchart Sheet 4. OV at Turn-On Sheet 5. OV at Turn-On Sheet 6. FS Indicated but Fuse OK Sheet 7. No Output Voltage Sheet 8. No Output Voltage Sheet 9 No Output Voltage Sheet 10. No Current Limit Sheet 11. Unit Does Not OV Sheet 12. High Output Voltage Error Code Description Probable Cause Specific Troubleshooting ProceduresPower-on Self-test Failures Self-Test Error Codes/MessagesBias Test Point Common Measurement CV/CC Status Annunciators TroubleshootingBias and Rail Voltages Bias and Reference VoltagesVoltage Measurements at J307 A2 Interface to A1 Main board J307 Voltage MeasurementsManual Fan Speed Control Disabling Protection FeaturesCalibration Password Inhibit Calibration SwitchPost-repair Calibration Identifying the Firmware ROM UpgradeUpgrade Procedure InitializationRemote sense leads before attempting disassembly Disassembly ProceduresList of Required Tools A2 Interface Board, Removal and Replacement Cover, Removal and ReplacementFront Panel Assembly, Removal and Replacement A1 Main Control Board S1 Line Switch, Removal and ReplacementA3 Front Panel Board, Removal and Replacement T1 Power Transformer, Removal and ReplacementTransformer Wiring Line Voltage WiringPower Supply Interface signals Interface SignalsConnector Signal Description Secondary Interface A3 Front Panel CircuitsA2 Interface Circuits Primary InterfaceA2/A3 Block Diagram A1 Main Board Circuits Power CircuitsA1 Block Diagram Control Circuits Principles of Operation Page Designator Model PartNumber Qty Description Chassis, ElectricalDesignator Model Part Number Qty Description Chassis, MechanicalMechanical Parts ldentification A1 Control Board PC Board Assembly Replaceable Parts Replaceable Parts Replaceable Parts Replaceable Parts Replaceable Parts Replaceable Parts Replaceable Parts Replaceable Parts Replaceable Parts Replaceable Parts Replaceable Parts A5 AC input/RFI Board Binding Post Option #020Relay Option #760 Model-dependent Components General Schematic NotesDiagrams A1 Board Component Locations R434 825 R500 175 325 R435 R505 A1 Board Component Locations A4 and A6 Board Component Locations A1 Board schematic sheet A1 Board schematic sheet A1 Board schematic sheet A6 Relay Option Board schematic Index Index
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6632B, 6633B, 66332A, 6634B specifications

Agilent Technologies, a leader in electronic test and measurement solutions, offers a range of power supplies designed to meet various application needs. Notable models include the 6632B, 6634B, 66332A, 6633B, and 6612C. Each of these units provides unique features and technologies that cater to researchers, engineers, and technicians in the industry.

The Agilent 6632B is a single-output DC power supply that delivers up to 30V and 3A. It is known for its excellent load regulation and low noise, making it ideal for sensitive electronic testing. The model includes built-in voltage and current measurement capabilities, allowing users to monitor output conditions in real time. The 6632B is commonly used in laboratory environments, educational institutions, and manufacturing lines.

Moving to the 6634B, this model offers dual-output capabilities with a maximum output of 30V and 6A. This versatility enables simultaneous powering of two different devices or circuit sections. It also features parallel and series operation options, allowing users to create a custom power supply configuration for specific applications. With a programmable interface, the 6634B simplifies test automation, ensuring efficiency in extensive testing scenarios.

The Agilent 66332A stands out with its precision and high performance. This power supply provides three outputs—two programmable and one fixed—yielding flexible power configurations. Its intuitive user interface allows easy adjustment of voltage and current settings. The device is equipped with extensive protection features to safeguard both the power supply and the connected load against faults. It is an excellent choice for complex testing setups that require reliable power.

The 6633B model offers a high-performance power supply with dual outputs, similar to the 6634B but with enhanced specifications. It can provide up to 40V and 2A per channel, delivering precision for demanding applications. This model is particularly suited for industries focused on high-reliability applications, such as telecommunications and aerospace.

Lastly, the Agilent 6612C is a compact and lightweight power supply providing single-output up to 60V and 2A. This model is designed for simplicity and ease of use, making it an excellent choice for portable applications. The 6612C’s unique characteristics include a compact design and user-friendly controls, which facilitate operation in field settings.

In summary, Agilent Technologies’ power supply models—6632B, 6634B, 66332A, 6633B, and 6612C—offer an array of features that cater to a wide range of testing and research needs, ensuring reliable power delivery in various contexts.
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