Agilent Technologies 6610XA appendix Troubleshooting Sequence, Accessing the Flowcharts

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Troubleshooting

This chapter provides troubleshooting and repair information for the Agilent 6610xA Power Modules. Before attempting to troubleshoot the modules, ensure that the problem is not with an external circuit or application, the mainframe, the GPIB controller, the application program, or the input power line.

SHOCK HAZARD Most of the troubleshooting procedures given in this chapter are performed with power applied and protective covers removed. Such maintenance should be performed only by trained

service personnel who are aware of the hazards (for example, tire and electrical shock).

Hazardous voltages are present throughout the Power and Bias board assemblies. Ac line voltage is present on some connectors even when the module is not turned on. The dc rail voltage to the module is 310 volts when the unit is turned on.

Troubleshooting Sequence

1.Verify that the module is at fault.

2.Use the flowcharts to locate the functional block at fault.

3.Troubleshoot the functional block per flowchart instructions.

Selftest routines built into firmware are provided to help isolate a problem to a particular circuit on the board. Once a problem has been isolated to a circuit, suggestions are given in the appropriate flowchart as to what component may be at fault.

This instrument uses components that can be damaged or suffer serious performance degradation as a result of ESD (electrostatic discharge). Observe the standard anti-static precautions discussed in Chapter 1 to avoid damage to components.

Accessing the Flowcharts

The following troubleshooting flowcharts are provided to help you identify and isolate a problem to a specific circuit. Once a problem has been narrowed down, suggestions are provided as to the components that may be responsible for the problem. Refer to the schematic diagrams for detailed information on circuit wiring and component function.

þFigure 3-1 - Overall Troubleshooting

þFigure 3-2 - Troubleshooting Microprocessor Circuits

þFigure 3-3 - Troubleshooting Error Messages

þFigure 3-4 - Troubleshooting Overvoltage at Turn-on

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Contents Agilent Part No Microfiche Part No Update June Service GuideCertification Safety Summary Printing History Table of Contents Replacement Parts Diagrams Overview About This ManualRelated Documents Revisions and Updates ManualFirmware Manual Part Number DescriptionService Tools and Equipment Safety ConsiderationsElectrostatic Discharge Critical Specifications Service Test Equipment Equipment RequiredRecommended Model Use1Performance Tests Operation Verification TestsVerification and Performance Tests Measurement Techniques Setup for Most TestsProgramming Current-Monitoring ResistorConstant Voltage CV Tests CV SetupCurrent Overvoltage Voltage Programming/Readback AccuracyCV Source Effect Transient Recovery TimeCV Noise Pard Constant Current CC Tests CC SetupCurrent Programming/Readback Accuracy CC Load and Line RegulationCC Source Effect CC Load EffectCC Noise Pard Performance Test Record for Model Agilent 66101A 8V, 16A SpecificationTest Description Measurement UncertaintyPerformance Test Record for Model Agilent 66102A 20V, 7.5A Actual Verification and Performance Tests Performance Test Record for Model Agilent 66103A 35V, 4.5APerformance Test Record for Model Agilent 66104A 60V, 2.5A 1μV 7mV 230μV 0mV 5mV 15mV 15μA 157μA 4μA Performance Test Record for Model Agilent 66106A 200V, 0.75A Page Accessing the Flowcharts Troubleshooting SequenceTroubleshooting Troubleshooting No Output If You Experienced Other Problems With the ModuleOverall Troubleshooting Sheet 1 Overall Troubleshooting Sheet 2 Overall Troubleshooting Sheet 3 Troubleshooting Microprocessor Circuits Sheet 1 Troubleshooting Microprocessor Circuits Sheet 2 Troubleshooting Error Messages Troubleshooting Overvoltage at Turn-On Sheet 1 Troubleshooting Overvoltage at Turn-On Sheet 2 Troubleshooting No Output Sheet 1 Troubleshooting No Output Sheet 2 Troubleshooting No Output Sheet 3 Troubleshooting No Output Sheet 4 Troubleshooting No Output Sheet 5 Troubleshooting High Output Troubleshooting Will Not Overvoltage Troubleshooting CV Accuracy Troubleshooting CC Accuracy 10. Troubleshooting Downprogrammer 11. Troubleshooting DAC Circuit 12. Troubleshooting Readback Circuits Sheet 1 12. Troubleshooting Readback Circuits Sheet 2 Built-In Test Functions Test PointsTest Point Test Points Description S3 Test Settings Test Description S3 Setting13. S3 Switch Setting Waveforms Troubleshooting Initialization Eeprom Troubleshooting and Initialization14. Eeprom Initialization Program Sheet 1 Troubleshooting 14. Eeprom Initialization Program Sheet 2 Troubleshooting 14. Eeprom Initialization Program Sheet 3 Troubleshooting 14. Eeprom Initialization Program Sheet 4 Troubleshooting Removing the Module and Module Connector Disassembly ProceduresRemoving the Cover Removing the FanRemoving the Power Board Removing the Front Panel AssemblyRemoving the Bias Board Removing the Front Panel BoardInstalling the Bias Board Installing the Power BoardInstalling the Fan Installing the Front Panel Board and Front Panel AssemblyInstalling the Cover Page Microprocessor Circuits AC Input and Bias SuppliesCV/CC DACs Theory Of OperationBlock Diagram Thoery Of Operation CC Amplifier CV AmplifierOr Gates Downprogrammer Circuit Pulse-Width Modulator, FETS, and Isolation TransformerReadback Multiplexer OV Circuit Page Replacement Parts Replacement PartsModel Model Model DIODE-PWR Rect CHOKE-OUTPUT BEAD-FERRITE CONNECTOR, Hood ASSY-FET, HS Shunt .005 Ohms Shunt .01 Ohms Shunt .035 Ohms R305 R306 R307 R308 R309 R310 R311 R312 R313 R314 R315 Model RES-ZERO Ohms RES 9.31K 1% Replacement Parts All Models 66101A-66103A 66104A-66106A Agilent 6610xA Power Modules Parts List Mechanical Model Output Connector Assembly Parts List Reference Designators Page Component Location Diagrams Schematic SheetsDiagrams Schematic Notes Page Page L305 Page Page Module Front Panel Page Page Page OUT Main Board Component Coordinates Page Agilent Prefix Serial Number Make Agilent Prefix Serial Number Make Model ChangesNumber Changes BackdatingBackdating Index IndexSchematic Troubleshooting

6610XA specifications

Agilent Technologies has long been recognized for its innovative contributions to the fields of measurement and testing, and the Agilent 6610XA series of power supplies is no exception. Tailored for demanding applications in electronics and advanced research, the 6610XA series exemplifies cutting-edge technology blended with user-friendly features.

One of the main characteristics of the Agilent 6610XA is its ability to provide a stable, accurate, and reliable power supply across a range of applications. With output voltages that can reach as high as 60V and currents up to 10A, the device is versatile enough to cater to a variety of testing requirements. This power supply is ideal for applications including semiconductor testing, device characterization, and more, where precision and consistency are paramount.

Among the standout features of the Agilent 6610XA is its advanced graphical user interface (GUI), which enhances the overall user experience. The intuitive design allows engineers and technicians to monitor and control voltage and current settings easily, making the process of configuring the device both fast and efficient. Additionally, the device has built-in measurement capabilities that can display real-time voltage and current readings, significantly aiding in troubleshooting and performance evaluation.

Furthermore, the 6610XA incorporates a range of communication interfaces including USB, LAN, and GPIB, making it highly adaptable for integration into various automated test setups. This versatility signifies that the power supply can be seamlessly incorporated into existing laboratory environments, promoting productivity and efficiency.

The series also incorporates intelligent protection mechanisms to ensure both user safety and equipment longevity. Features such as overvoltage protection (OVP) and overcurrent protection (OCP) are designed to prevent accidental overloads, safeguarding both the device under test and the power supply itself.

Another key aspect is the series' capability to perform complex programming tasks with ease. With programming capabilities that enable users to set intricate voltage and current profiles, the device supports advanced applications, including load transient testing and sweep testing. This flexibility makes the Agilent 6610XA a valuable asset for any research and development environment looking to enhance testing efficiency and accuracy.

In conclusion, the Agilent 6610XA series power supply stands out for its combination of precision, user-friendliness, advanced communication capabilities, and safety features. These attributes make it a critical tool for engineers and researchers engaged in the rigorous demands of modern electronics testing and evaluation. With its continued commitment to innovation, Agilent Technologies reinforces its position as a leader in providing high-quality solutions for the measurement and testing industry.