HP 4328A Service Manual

Table o[ Contents
Model 4328A
TABLE OF CONTENTS
Section
Page
I GENERAL INFORMATION . . . . . . . . . 1-1
1-1. Description ...................... 1-1
1-9. Accessories Furnished ........... 1-9
1-11. Instrument Identification . . . . , .... 1-2
1-13. Manual Changes .... , ............. 1-2
U INSTALLATION .... , ...... , ............ 2-1
2-1. Introduction . . . . . . . . . . . . . . . . . . . . . 2-1
2-3. Unpacking and Inspection .. , ..... , 2-1
2-5. Storage and Shipment . . . . . . . . . . . . . 2-1
2-6. Packaging .................... ,. 2-1
2-7. Environment . . _...... 2-1
2-8. Installation , . . . . . . . . . . . . . . . . . . . . 2-1
2-10. Combining Case ...... , 2-1
2-12. Adapter Frame , . . . 2-1
2-14. Power Connection . , . . . . . . . . . . 2-1
2-15. Line Voltage . . . . .. . . . . 2-1
2-16. Power Cable . . . . . .. . . . . 2-1
III OPERATION .................. , . . . 3-1
3-1. Introduction . . . . . . .. . . . . . .. 3-1
3 -4.. Controls, Connectors, and
Indicators . . . . . _ . . . . . . . . . . . 3-1
3-6. Battery Operation , .............. 3-1
3-10. Instrument Temperature
Range ...................... 3-1
3-12. Measurement 3-1
3-15. Operating Procedure . . . . . . . . . . . 3-1
3-17. Measuring Voltage on Samples . . . . . 3-1
3-21. Applied Current on Samples and
Ma..ximum Power Dissipation ..... 3-5
3-24. Effect of Series Reactance of
Samples .................... , _ . . . 3-5
3-26. DC Bias Superimposed , . . . . . . ... 3-5
3-30. Recorder Output . . . . . . . . . .. . . . . . . 3-5
3-32. Probe Connection . . . . . _........ . 3-5
3-33. General .......... , . . . . . . . . . 3-5
3-35. Probe InstallatiOn . . . . . . . . . . 3-6
3-37. 16005A Clip-Type Probe . . . . . . 3-6
3-39. 16006A Pin-Type Probe . . . .. . . 3-6
3-41. 16007A B Test Leads .... _ .... 3-6
3-43 Notes on Operation .... , . . . 3-6
3-44 In using the 1 and 3m Ohm
Ranges, Connection o[
Current Terminals to the
Sample must be a Firm,
Positive Contact . . . . . .. . . . . . . 3-6
3-46. In using the 1 and 3m Ohm
Range, Large Electrically
Conductive Matedals should
not be placed close to the
Probe or their Cables 3-6
3-48. Changing Test Lead Length . . . . 3-7
IV THEORY OF OPERATION ............. _ 4-1
4-1. Introduction ,. _ ...... ,. . . . . . . . . .. . . 4-1
4-4. Simplified Functional DescriptiOn 4-1
4-7. Oscillator Circuit . , _ . . . 4-2
4-10. Schmitt Trigger Cucuit . . . . . . 4-2
ii
Section
Page
IV THEORY OF OPERATION (Cont'd)
4-12. 20mV Peak Limiter . . . . 4-2
4-14. Phase Sensitive Voltmeter. . . . 4-2
V MAINTENANCE ................. , . . . . . . 5-1
5-l. [ntroduction . , ................... 5-1
5-3. Contents . . . . . . . . .. . . . . . . 5-1
5-4. Performance Checks .......... 5-1
5-6. Adjustments ..... _ ........... , 5-1
5-9. Test Equipment ...... , . . . .. . 5-1
5-11. Maintenance .......... ·-······. 5-2
5-13. 4328A Performance Checks . . . . . .. . 5-2
5-15. Mechamcal Meter Zero . . . .. . 5-2
5-17. Linearity Check ............ , . 5-2
5-18. Full Scale Check . .. . .. . . . 5-2
5-19.. Cover Removal and Replacement. 5-2
5-21. Top Cover Removal .. . . . . . . . . . 5-2
5-22. Top Cover Replacement . . . . 5-2
5-23. Bottom Cover Removal .. , ..... 5-3
5-24. Bottom Cover Replacement 5-3
5-25. Adjustment Procedures . . . . . . . . . . 5-3
5-27. Mechanical Meter Adjustment .. 5-3
5-28. DC Power Supply Check 5-3
5-30. Bias AdJustment , ... , ...... _ .. 5-3
5-32. T302 Adjustment ........... , _ ... 5-3
5-33. Oscillator Output Adjustment .. 5-3
5-34. Electrical Zero Adjustment . . . 5-3
5-35. Lmeanty Adjustment ......... 5-3
5-36. Full Scale Adjustment ........ 5-4
5-37. Recorder Output Adjustment ... 5-4
5-38. Reactance Component Offset
Adjustment ........ ,. . ... , , . . . . 5-4
5-39. Isolating Trouble in Transistor
Circuits ..... , . . . .. . . 5-5
5-40.. General . . . . . . . . . . . .. . . . , . . . 5-5
5-41. In Circuit Testing ............. 5-5
5-45. Out-of-Circuit Testing ........ 5-5
5-47. Component Replacement m
Etched Circuits ................. 5-5
5-48. General . .. . . .. . .. . 5-5
5-49. Axial-Lead Components , . . . . . . 5-5
5-51. Other Components 5-5
Vl REPLACEABLE PARTS . . .. .. . .. 6-1
6-1. Introduction ..... , . . . . . 6-1
6-4. Ordering Information _ .... , . . . . . . 6-1
VII MANUAL CHANGES AND OPTIONS . . . .. . .. 7-1
7-l. Options . . . .. . . ...... _ ............. 7-1
7-3. Special Instruments . . . .. . . . . . .. . . 7-1
7-5. Manual Changes .............. , . 7-1
7-7. Later Instruments . . . . .. . . . 7-1
7-8. Earlier Instruments . , . . . . . .. 7-1
VIIl TROUBLESHOOTING AND CffiCUlT
DIAGRAMS , ..... , . . . . . . . . . . .. 8-1
8 -1. Introduction . . . . . . . . .. . . . . .. 8-1
8 -5.. Troubleshooting 8-1
8-8. Schematics . . . . . . . . .. . . . . .. . .. . . . . 8-1
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HP 4328A Specifications

General

Brand	HP
Model	4328A
Category	Measuring Instruments
Language	English