Introduction
9
Hazardous voltage exist within the power supply chassis, at the output terminals, and at the analog
programming terminals.
Conventions
•
In diagrams, the name of a complementary signal is sometimes shown with a bar above the signal mnemonic. In other
diagrams and in the text, complementary signals are shown with an asterisk (*) after the mnemonic (such as PCLR*). A
mnemonic with a bar over it or an asterisk after it represents the same signal.
•
In this manual, all Agilent 667xA Series supplies are referred to as system supplies. All Agilent 657xA Series supplies
are referred to as bench supplies.
Electrostatic Discharge
The power supply has components that can be damaged by ESD (electrostatic discharge). Failure to
observe standard, antistatic practices can result in serious degradation of performance, even when an
actual failure does not occur.
When working on the power supply observe all standard, antistatic work practices. These include, but are not limited to:
•
Working at a static-free station such as a table covered with static-dissipative laminate or with a conductive table mat
(Agilent P/N 9300-0797, or equivalent).
•
Using a conductive wrist strap, such as Agilent P/N 9300-0969 or 9300-0970.
•
Grounding all metal equipment at the station to a single common ground.
•
Connecting low-impedance test equipment to static-sensitive components only when those components have power
applied to them.
•
Removing power from the power supply before removing or installing printed circuit boards.
Содержание 6571A
Страница 10: ......
Страница 33: ...Troubleshooting 33 Figure 3 1 Overall Troubleshooting Sheet 1 of 4...
Страница 34: ...34 Troubleshooting Figure 3 1 Overall Troubleshooting Sheet 2 of 4...
Страница 35: ...Troubleshooting 35 Figure 3 1 Overall Troubleshooting Sheet 3 of 4...
Страница 36: ...36 Troubleshooting Figure 3 1 Overall Troubleshooting Sheet 4 of 4...
Страница 37: ...Troubleshooting 37 Figure 3 2 No Display Troubleshooting...
Страница 38: ...38 Troubleshooting Figure 3 3 OV Will Not Fire Troubleshooting...
Страница 39: ...Troubleshooting 39 Figure 3 4 OV At Turn On Troubleshooting Sheet 1 of 2...
Страница 40: ...40 Troubleshooting Figure 3 4 OV At Turn On Troubleshooting Sheet 2 of 2...
Страница 41: ...Troubleshooting 41 Figure 3 5 Output Held Low Troubleshooting Sheet 1 of 2...
Страница 42: ...42 Troubleshooting Figure 3 5 Output Held Low Troubleshooting Sheet 2 of 2...
Страница 43: ...Troubleshooting 43 Figure 3 6 Output Held High Troubleshooting...
Страница 44: ...44 Troubleshooting Figure 3 7 DAC Circuits Troubleshooting...
Страница 45: ...Troubleshooting 45 Figure 3 8 DAC Test Waveforms...
Страница 46: ...46 Troubleshooting Figure 3 9 CV CC DAC and Amplifier Circuit Troubleshooting...
Страница 47: ...Troubleshooting 47 Figure 3 10 Serial Down Troubleshooting Sheet 1 of 2...
Страница 48: ...48 Troubleshooting Figure 3 10 Serial Down Troubleshooting Sheet 2 of 2...
Страница 49: ...Troubleshooting 49 Figure 3 11 Isolator Board Troubleshooting...
Страница 50: ...50 Troubleshooting Figure 3 12 Secondary Interface Down Sheet 1 of 2...
Страница 51: ...Troubleshooting 51 Figure 3 12 Secondary Interface Down Sheet 2 of 2...
Страница 52: ...52 Troubleshooting Figure 3 13 Slow Downprogramming Troubleshooting...
Страница 55: ...Troubleshooting 55 Figure 3 14 A3 FET Board Test Waveforms...
Страница 59: ...Troubleshooting 59 Figure 3 17 Signature Analysis Connections for Model 657xA Only...
Страница 60: ...60 Troubleshooting Figure 3 17 Signature Analysis Connections for Model 667xA Only...
Страница 75: ...Troubleshooting 75 Figure 3 20 Component Locations Top Cover and RFI Shield Removed...
Страница 76: ......
Страница 83: ...Principles Of Operation 83 Figure 4 1 Agilent Series 665xA 667xA Power Supply Block Diagram...
Страница 84: ......
Страница 124: ...124 Diagrams Figure 6 1 Test Point Waveforms for Table 6 3...
Страница 125: ...Diagrams 125 Figure 6 2 Circuit Board Cabling Diagram...
Страница 126: ...126 Diagrams Figure 6 3 A1 Front Panel Board Component Location Diagram...
Страница 127: ...Figure 6 4 A1 Front Panel Board Schematic Diagram...
Страница 128: ...Figure 6 5 A2 GPIB Board Assembly Diagram 667xA only...
Страница 129: ...2 3 4 1 6 5 Figure 6 6 A2 GPIB Board Schematic Diagram 667xA only 7 8...
Страница 130: ...Figure 6 7 A3 FET Board Assembly Diagram and Test Point Locations...
Страница 132: ...9 10 11 15 13 12 17 18 19 24 22 23 25 21 20 Figure 6 9 A4 AC Input Board Assembly Diagram and Test Point Locations 14 16...
Страница 133: ...Figure 6 10 A4 AC Input Board Schematic Diagram 15 13 17 18 25 21 20 16 9 10 11 12 19 24 22 23 14...
Страница 135: ...Figure 6 12 A5 Board Sec CV CC Readback DACs Schematic sheet 1 64 37 38 36 39 40...
Страница 136: ...Figure 6 12 A5 Board CV CC Control Circuits Schematic sheet 2 40 45 46 39 41 42 47 43 48 44...
Страница 138: ...Figure 6 13 A6 Output Filter A7 Snubber Boards Assembly Diagrams 65 6671A 72A...
Страница 139: ...Figure 6 14 A6 Output Filter A7 Snubber Boards Schematic Diagrams 65 6671A 72A A7 Snubber Board...
Страница 140: ...Figure 6 15 A6 Output Filter A7 Snubber Boards Assembly Diagrams 65 6673A 74A...
Страница 142: ...Figure 6 17 A6 Output Filter A7 Snubber Boards Assembly Diagrams 65 6675A...
Страница 143: ...Figure 6 18 A2 Isolator Board Assembly and Schematic Diagram for 654xA 655xA Models Only...
Страница 154: ......