Fluke 5220A - page 127

Schematic Diagrams

7-9

ajs54f.wmf

Figure 7-4. A5 Preamplifier PCB Assembly (cont.)

Contents

Main Page Table of Contents 5220A Page Page List of Tables Page List of Figures 5220A Page Page Section 1 Introduction and Specifications 1-1. Introduction 1-2 1-2. Specifications Specifications for the Model 5220A are given in Table 1-2. Introduction and Specifications Specifications 1-3 1-4 Page Page Section 2 Operating Instructions 2-1. Introduction 2-2. Shipping Information 2-3. Input Power 2-4. Fuse Replacement 2-5. AC Line Fuse 2-6. Power Supply Fuses 2-7. Rack Installation 2-8. Operating Features Page 5220A 2-4 2-9. Operating Notes 2-10. AC Line Connection 2-11. Transconductance Amplifier 2-12. Input Voltage Requirements 2-13. Input Voltage Selection, Front/ Rear 2-14. Current Output, Front/Rear 2-15. Standby/Operate 2-16. Local/Remote 2-17. Status Indicators 2-18. Audible Output 2-19. Inductive Loads Page 2-20. Operation Page Section 3 Theory of Operation 3-1. Introduction 3-2 . Overall Functi onal Descri ption 3-3. General 3-4. Analog Section Page Page 3-5. Digit al Section 3-6. Circuit Analysis 3-7. Power Supply Page 3-8. Preamplifier 3-9. A6 Driver Page 3-10. A7 Output 3-11. A8 Analog Control 3-12. A9 Front Panel 3-13. A10 Logic 3-14. Reset Logic Page 3-15. Timing Logic 3-16. Standby/Operate Logic 3-17. Local/Remote Logic 3-18. Front/Rear I nput Logic 3-19. Failure Status Logic 3-20. A11 MIS Bus Interface Page Page Section 4 Maintenance 4-1. Introduction WWarning 4-2. Service Information 4-3. General Maintenance 4-4. Cleaning 4-5. Air Filter Maintenance 4-6. Access Information Page 4-7. Internal Components/Assemblies 4-8. Front Panel Removal 4-9. A9 Front Panel PCB Removal 4-10. A2 Transformer Assembly Removal 4-11. A6 Driver and A7 Output Assembly Removal 4-12. A3 Cap Bus Removal 4-13. A12 Shunt Assembly Removal 4-14. Fuse Replacement 4-15. Ac Line Fuse 4-16. Power Supply Fuses 4-17. Line Voltage Selection 4-18. Output Terminal Selection, Front/Rear 4-19. Service Tools 4-20. Performance Test 4-21. Initi al Conditions 4-22. Front Panel Tests 4-23. Zero Output 4-24. DC Accuracy and Line Regulation 4-25. Harmonic Distortion 4-26. Frequency Response 4-27. Overcurrent Trip Test 4-28. Overvoltage Trip Test 4-29. Calibration Adjustments 4-30. Initi al Conditions 4-31. Input Offs et Adjustment 4-32. Driver Offset Adjustment 4-33. Output Bias Adjustment 4-34. DC Accuracy Adjustment 4-35. Frequency Response 4-36. Overcurrent Adjustment 4-37. Overvoltage Adjustment 4-38. Replacement of Selecte d Components 4-39. Resistors R11 and R12 4-40. Resistor R13 4-41. Troubleshooting h Page Page 4-21 4-22 Note The jumper wire must be installed between the enabled output terminals. 4-23 Page 4-25 4-26 Section 5 List of Replaceable Parts 5-1. Introduction 5-2. How to Obtain Parts 5-3 . Manual St atus Information 5-4. Newer Instruments 5-5. Service Centers W Page Page 5-5 5-6 5-7 Page Page Page Page Page Page Page Page Page 5-17 5-18 5-19 Page 5-21 Page 5-23 5-24 Page 5-26 5-27 5-28 h Indicates a static-sensit ive part. Page Page 5-31 Page 5-33 Page Page Page Page 5-38 Note The A12 shunt assembly is a suggested non-repairable assembly. Page 5-40 5-41 Page Section 6 Option and Accessory Information 6-1. Introduction 6-2. Accessories 6-3. Rack Mounting Kit (M08-205-600) Page 6-4. Rack Slide Kit (M00-280-610) 6-5. Precision Y5020A Current Shunt