SAFETY CONSIDERATIONS
GENERAL.
This is a Safety Class 1 instrument (provided with terminal for connection to protective earth ground).
OPERATION.
BEFORE APPLYING POWER verify that the product is set to match the available line voltage, the correct
line fuse is installed, and all safety precautions (see following warnings) are taken. In addition, note the instrument’s external
markings described under "Safety Symbols".
WARNING.
•
Servicing instructions are for use by service-trained personnel. To avoid dangerous electrical shock, do not perform any
servicing unless you are qualified to do so.
•
BEFORE SWITCHING ON THE INSTRUMENT, the protective earth terminal of the instrument must be connected to
the protective conductor of the (mains) power cord. The mains plug shall be inserted only in an outlet socket that is
provided with a protective earth contact. This protective action must not be negated by the use of an extension cord
(power cable) that is without a protective conductor (grounding). Grounding one conductor of a two-conductor outlet is
not sufficient protection.
•
If this instrument is to be energized via an auto-transformer (for voltage change), make sure the common terminal is
connected to the earth terminal of the power source.
•
Any interruption of the protective (grounding) conductor (inside or outside the instrument), or disconnecting of the
protective earth terminal will cause a potential shock hazard that could result in personal injury.
•
Whenever it is likely that the protective earth connection has been impaired, this instrument must be made inoperative
and be secured against any unintended operation.
•
Only fuses with the required rated current, voltage, and specified type (normal blow, time delay, etc.) should be used.
Do not use repaired fuses or short-circuited fuseholders. To do so could cause a shock or fire hazard.
•
Do not operate this instrument in the presence of flammable gases or fumes.
•
Do not install substitute parts or perform any unauthorized modification to this instrument.
•
Some procedures described in this manual are performed with power supplied to the instrument while its protective
covers are removed. If contacted, the energy available at many points may result in personal injury.
•
Any adjustment, maintenance, and repair of this instrument while it is opened and under voltage should be avoided as
much as possible. When this is unavoidable, such adjustment, maintenance, and repair should be carried out only by a
skilled person who is aware of the hazard involved.
•
Capacitors inside this instrument may hold a hazardous electrical charge even if the instrument has been disconnected
from its power source.
SAFETY SYMBOLS.
Instruction manual symbol. The instrument will be marked with this symbol when it is necessary for you to refer to the
instruction manual in order to protect against damage to the instrument.
This sign indicates hazardous voltages.
This sign indicates an earth terminal (sometimes used in the manual to indicate circuit common connected to a ground
chassis).
The WARNING sign denotes a hazard. It calls attention to a procedure, practice, or the like, which, if not correctly
performed or adhered to, could result in personal injury. Do not proceed beyond a WARNING sign until the
indicated conditions are fully understood and met.
The CAUTION sign denotes a hazard. It calls attention to an operating procedure, or the like, which, if not correctly
performed or adhered to, could result in damage to or destruction of part or all of the product. Do not proceed
beyond a CAUTION sign until the indicated conditions are fully understood and met.
.
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: ......