Agilent Technologies AGILENT MODELS 6023A and 6028A

Figure 4-3. Simplified Schematic

Contents

Main SERVICE MANUAL CERTIFICATION WARRANTY LIMITATION OF WARRANTY EXCLUSIVE REMEDIES ASSISTANCE SAFETY SUMMARY Page TABLE OF CONTENTS Page Introduction Manual Revisions Calibration and Verification Test Equipment Required Operation Verification Tests Calibration Procedure Note: Page Initial Setup Page Page Performance Tests Measurement Techniques Constant Voltage (CV) Tests Page Page Page Page Page Constant Current (CC) Tests Page Troubleshooting Initial Troubleshooting Procedures Page Electrostatic Protection Repair and Replacement A2 Control Board Removal A4 Power Mesh Board Removal A3 Front-Panel Board Removal A1 Main Board Removal Overall Troubleshooting Procedure Using the Tables Main Troubleshooting Setup Page Troubleshooting No-Output Failures Front-Panel Troubleshooting Page Troubleshooting Bias Supplies Page Power Section Blocks Troubleshooting AC-Turn-on Circuits Troubleshooting PWM & Clock Troubleshooting DC-To-DC Converter Note Troubleshooting CV Circuit Troubleshooting CC Circuit Troubleshooting Down Programmer Troubleshooting OVP Circuit Page Note Page Principles of Operation Autoranging Power Block Diagram Overview Page Simplified Schematic Page DC-to-DC Converter Down Programmer Constant-Voltage (CV) Circuit Constant-Current (CC) Circuit Overvoltage Protection (OVP) Circuit Power-Limit Comparator Control-Voltage Comparator Initial-Ramp Circuit Pulse-Width Modulator (PWM) Bias Voltage Detector AC-Surge Dropout Detector 1-Second-Delay Circuit Display Circuits Page Replaceable Parts Ordering Information Page Page Page Page Page Page Page Page Page Page Page Page Page Page Component Location and Circuit Diagrams Page Page Page Page Page Page Page Page Page A System Option 002 General Information Specifications Option 002 Hardware Page Page Page Installation Connector Assembly Procedure Note: Note Operation Local/Remote Programming Page Remote Resistance Programming Page Remote Monitoring Status Indicators Remote Control Note Power-On Preset AC Dropout Buffer Circuit Multiple Supply System Shutdown Note Bias Supplies Maintenance Troubleshooting Troubleshooting Resistance and Voltage Programming Troubleshooting Current Programming Page Page Note Page Page Page Page Page Page Page Page B Backdating CHANGE 5 CHANGE 1 CHANGE 2 CHANGE 6 CHANGE 7 CHANGE 8 CHANGE 9 CHANGE 10