Agilent Technologies 6680A manuals

Agilent technologies 6680A User Manual (156 pages)

Brand: Agilent-technologies | Category: Chassis components | Size: 3.22 MB |

English

Table of contents

SERVICE MANUAL

1

GPIB DC Power Supplies

1

Agilent Series 668xA

1

CERTIFICATION

2

WARRANTY

2

LIMITATION OF WARRANTY

2

EXCLUSIVE REMEDIES

2

ASSISTANCE

2

SAFETY CONSIDERATIONS

3

Safety Symbol Definitions

4

Printing History

4

Table of Contents

5

Related Documents

8

Manual Revisions

8

Safety Considerations

9

Conventions

9

Electrostatic Discharge

9

Verification

10

Electronic Load

11

Programming The Tests

12

General Considerations

12

Operation Verification Tests

13

Performance Tests

13

Constant Voltage (CV) Tests

13

Verification 15

14

Constant Current (CC) Tests

18

22 Verification

21

Verification 23

22

Averaging the CC Measurements

23

Troubleshooting

30

Test Equipment Required

31

Troubleshooting Procedures

31

Power-On Selftest

31

Troubleshooting Charts

33

Troubleshooting Test Points

33

Bias and Reference Supplies

33

Troubleshooting 35

34

36 Troubleshooting

35

Troubleshooting 37

36

38 Troubleshooting

37

Troubleshooting 39

38

40 Troubleshooting

39

Troubleshooting 41

40

42 Troubleshooting

41

Troubleshooting 43

42

44 Troubleshooting

43

Troubleshooting 45

44

46 Troubleshooting

45

Troubleshooting 47

46

48 Troubleshooting

47

Troubleshooting 49

48

50 Troubleshooting

49

Troubleshooting 51

50

52 Troubleshooting

51

A3 FET Board Troubleshooting

52

Troubleshooting 55

54

Signature Analysis

55

Introduction

55

Firmware Revisions

55

Test Headers

56

Troubleshooting 59

58

EEPROM Initialization

62

Disassembly Procedures

67

Tools Required

67

Top Cover

68

GPIB Board

68

A4 AC Input Assembly

69

A5 DC RAIL Assembly

69

A6 BIAS Assembly

69

A3 FET Board

69

A1DSP1 LCD Display

71

A1G1 and A1G2 Rotary Controls

71

A1KPD Keypad

71

Troubleshooting 73

72

74 Troubleshooting

73

Troubleshooting 75

74

76 Troubleshooting

75

Troubleshooting 77

76

78 Troubleshooting

77

Troubleshooting 79

78

80 Troubleshooting

79

Principles Of Operation

80

A1 Front Panel Assembly

81

A10 Control Board

81

A4 AC Input Board

84

A5 DC Rail Board

84

Output Circuits

85

Principles Of Operation 87

86

Replaceable Parts

87

How to Order Parts

88

Diagrams

113

General Schematic Notes

117

120 Diagrams

118

Diagrams 121

119

122 Diagrams

120

Backdating

146

Backdating 153

150

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