Agilent Technologies 66332A, 6634B S1 Line Switch, Removal and Replacement, A1 Main Control Board

Page 45

Troubleshooting - 3

S1 Line Switch, Removal and Replacement

a.First remove the front panel assembly as described under “Front Panel Assembly, Removal and Replacement.”

b.Release the switch from the front panel by pressing the locking tabs inward against the body of the switch and pushing the switch out of its opening.

NOTE: When reinstalling the switch, make sure that the letter “O” is facing up when the switch is installed in its opening.

A3 Front Panel Board, Removal and Replacement

First remove the front panel assembly as described under, "Front Panel Assembly, Removal and Replacement." Once you have access to the front panel board perform these steps:

a.Remove the RPG knob by pulling it away from the front panel.

b.Use a Torx T10 driver to remove the screw that secures the board to the front panel assembly.

c.Slide the board to the left to disengage the holding clips, then lift it out.

d.To reinstall the Front Panel board, perform the above steps in reverse order.

A1 Main Control Board

a.Remove the top cover and the A2 Interface board as previously described.

b.Disconnect all cables going to connectors on the main control board.

NOTE: Be sure to note the position and orientation of all cables prior to removal so that no mistake is made later when reinstalling these cables.

c.If your power supply is equipped with a relay option board, remove the Torx T10 screw that holds the relay board bracket.

d.Remove four Torx T15 screws that secure the main control board to the chassis.

e.Slide the main board towards the front panel to release it from chassis mounted standoffs and then lift the board out of the chassis.

T1 Power Transformer, Removal and Replacement

To remove the power transformer, the front panel assembly must first be removed to gain access to the bracket screws that hold the transformer in place.

a.Remove the three Torx T10 screws securing the rear of the transformer bracket to the bottom of the chassis and the two Torx T10 screws securing the front of the transformer to the chassis.

b.Use long nose pliers to disconnect all wires going to the transformer terminals.

c.Lift the transformer out of the chassis.

NOTE: The AC power connections at the transformer primary are line voltage dependent. Refer to Figure 3-3 subsequent reconnection.

45

Page 44 Page 46
Image 45
Page 44 Page 46
Contents Agilent Part No Microfiche No October Certification Warranty InformationBefore Applying Power Safety SummarySymbol Description Safety Symbol DefinitionsPrinting History Instrument IdentificationItem Description Table of Contents Disassembly Procedures Initialization ROM UpgradeIntroduction General Schematic Notes Backdating Post-repair CalibrationPage Organization Safety ConsiderationsRelated Documents ChapterElectrostatic Discharge RevisionsManual Revisions Firmware RevisionsIntroduction Type Specifications Recommended ModelTest Equipment Required Built-in Self TestsMeasurement Techniques Test SetupPerformance Tests Operation Verification TestsElectronic Load Current-Monitoring ResistorConstant Voltage CV Tests CV SetupVoltage Programming and Readback Accuracy CV Load EffectCV Noise Pard CV Source EffectCC Setup Transient Recovery TimeConstant Current CC Tests Current Programming and Readback AccuracyCurrent Sink -CC Operation Low Range Current Readback AccuracyCC Load and Line Regulation CC Source Effect CC Load EffectCC Noise Pard Performance Test Equipment FormPerformance Test Record Forms − 4 mV + 4 mV Vout − 12 mV Model Agilent 6634B Report No Date Test Description MinimumVout − 42 mV Iout + 0.29 mATroubleshooting Flow Charts Overall TroubleshootingTest Equipment Required for Troubleshooting Type Purpose Recommended ModelSheet 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 Power-on Self-test Failures Specific Troubleshooting ProceduresSelf-Test Error Codes/Messages Error Code Description Probable CauseBias and Rail Voltages CV/CC Status Annunciators TroubleshootingBias and Reference Voltages Bias Test Point Common MeasurementVoltage Measurements at J307 A2 Interface to A1 Main board J307 Voltage MeasurementsManual Fan Speed Control Disabling Protection FeaturesInhibit Calibration Switch Calibration PasswordPost-repair Calibration Upgrade Procedure ROM UpgradeInitialization Identifying the FirmwareDisassembly Procedures Remote sense leads before attempting disassemblyList of Required Tools Cover, Removal and Replacement A2 Interface Board, Removal and ReplacementFront Panel Assembly, Removal and Replacement A3 Front Panel Board, Removal and Replacement S1 Line Switch, Removal and ReplacementT1 Power Transformer, Removal and Replacement A1 Main Control BoardTransformer Wiring Line Voltage WiringInterface Signals Power Supply Interface signalsConnector Signal Description A2 Interface Circuits A3 Front Panel CircuitsPrimary Interface Secondary 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 Binding Post Option #020 A5 AC input/RFI BoardRelay 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 Manual Updates
Related manuals
Manual 82 pages 25.5 Kb Manual 103 pages 34 Kb

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.
Top Page Image Contents