Document Outline

• 5725A Intruction Manual
  • LIMITED WARRANTY AND LIMITATION OF LIABILITY
  • Table of Contents
  • List of Tables
  • List of Figures
  • Interference Information
  • OPERATOR SAFETY SUMMARY
    • Symbols Marked on Equipment
    • Power Source
    • Use the Proper Fuse
    • Grounding the 5725A
    • Use the Proper Power Cord
    • Do Not Operate in Explosive Atmospheres
    • Do Not Remove Cover
    • Do Not Attempt to Operate if Protection May be Impaired
  • SERVICING SAFETY SUMMARY
    • Do Not Service Alone
    • Use Care When Servicing With Power On
  • FIRST AID FOR ELECTRIC SHOCK
• 1. Introduction and Specifications
  • Introduction
  • Where to Go From Here
  • How to Use the Manuals
    • 5725A Getting Started Manual
    • 5725A Instruction Manual
    • 5700A/5720A Series II Manual Set
    • 5700A/5720A Series II Operator Manual
    • 5700A/5720A Series II Operator Reference Guide
    • 5700A/5720A Series II Remote Programming Reference Guide
    • 5700A/5720A Series II Service Manual
  • Specifications
  • DC Voltage Specifications
  • AC Voltage Specifications
  • Resistance Specifications
  • DC Current Specifications
  • AC Current Specifications
  • Wideband AC Voltage (Option 5700-03) Specifications
  • General Specifications
• 2. Installation
  • Introduction
  • Unpacking and Inspection
  • Service Information
  • Placement and Rack Mounting
  • Cooling Considerations
  • Connecting to the 5700A Calibrator
  • Selecting Line Voltage
  • Accessing the Fuse
  • Connecting to Line Power
• 3. Operating Notes
  • Introduction
  • Front Panel Features
  • Rear Panel Features
  • Turning on the 5725A Amplifier
  • Warm Up
  • 5725A Operating Functions and Modes
    • Standby
    • Voltage Standby
    • Current Standby
    • Voltage Operate
    • Current Operate
  • Conditions That Activate the 5725A
• 4. Theory of Operation
  • Introduction
  • Overall Functional Description
    • 1100V AC Range Functional Description
    • 11A Range Functional Description
      • Operation in the 11A DC Range
      • Operation in the 11A AC Range
    • Voltage and Current Standby Modes
      • Voltage Standby
      • Current Standby
    • How the 5700A and 5725A Communicate
      • Description of the Out-Guard Lines (5725A Side)
      • Description of the In-Guard Lines
    • Functional Summaries by Assembly
  • Detailed Circuit Description
    • Interconnect Assembly (A1)
    • Power Supply Assembly (A4)
      • High Voltage Supply Section
      • Switching Section
      • Current-Limit Section
      • System Supply Section
      • Fan Supply Section
    • Digital Assembly (A5)
      • Microcomputer
      • External RAM.
      • External ROM
      • EEROM
      • Data Latch
      • Strobe Lines
      • Led Driver
      • Optoisolator Link
      • Break-Detect Circuitry
      • Power Up and Reset Circuitry
      • Watchdog Timer
    • Current Amplifier Assembly (A2)
      • Error Amplifier Section
      • Output Stage Section
      • Monitor Section
      • Control and Switching Section
      • Power Supply Section
    • High Voltage Amplifier (A3)
      • Input Amplifier
      • Integrator
      • Window Comparator
      • Input Clamp
      • Transconductance and Cascode Stage
      • Midstage
      • Midstage -400V Filter
      • High Voltage Heat Sink Assemblies
      • Autobias Current Source
      • Autobias Sense Circuit
    • High Voltage Sense Assembly (A6)
• 5. Calibration and Verification
  • Introduction
  • Where to Find Further Information
• Static Awarenss
• 6. Maintenance
  • Introduction
  • Replacing the Fuse
  • Cleaning the Air Filter
  • General Cleaning
  • Cleaning PCA's
  • Access Procedures
    • Initial Access Procedure
    • Accessing the Power Supply Assembly (A4)
    • Accessing the Digital Assembly (A5)
    • Accessing the Current Amplifier Assembly (A2)
    • Accessing the High Voltage Amplifier (A3)
    • Accessing the High Voltage Sense Assembly (A6)
    • Accessing the High Voltage Output Transistors
    • Accessing the Interconnect Assembly (A1)
  • Enabling Front or Rear Binding Posts
• 7. Troubleshooting
  • Introduction
  • 5725A Fault Codes
  • Self Diagnostics
  • Manual Tests for Fault Isolation
    • Problems 1 or 2: Fault at Power-Up or When Entering Voltage Standby
    • Problem 3: Fault When Entering Voltage Operate
    • Problem 4: Fault When Entering Current Standby
    • Problem 5: Fault When Entering Current Operate
  • Reduced-Voltage Troubleshooting Mode
  • Testing the Power Supply By Itself
• 8. List of Replaceable Parts
  • Introduction
  • How to Obtain Parts
  • Manual Status Information
  • Newer Instruments
  • Service Centers
  • Parts Lists
• 9. Schematic Diagrams
• Index