
Maintenance
Access Procedures
6
6-9
8.
Take another DMM reading with the common lead to TP307 and the high lead to
TP304 on the Power Supply assembly. This is the -400V filter capacitor test point,
and it should be at a safe level near zero. This completes the initial access procedure.
Accessing the Power Supply Assembly (A4)
6-8.
Warning
To avoid electrical shock, do not proceed with the following
access procedure until you have completed the initial access
procedure, which removes line power and checks for high
voltage on the power supply.
The Power Supply assembly lays flat on the bottom of the instrument, toward the front.
Proceed as follows to access the Power Supply assembly:
1.
Perform the Initial Access Procedure.
2.
Return the High Voltage Amplifier assembly (and the Current Amplifier assembly if
it has been accessed) to the normal position, and reinstall the assembly retaining
screws.
Note
When reinstalling assemblies, lower them in place squarely to make sure their
connectors seat correctly in the Interconnect assembly connectors.
3.
Turn over the 5725A so that the bottom is facing up.
4.
Remove the five retaining screws on the Power Supply assembly. Lift the Power
Supply assembly by pulling on the plastic wire-tie loops, and place the assembly in
the service position.
Note
When reinstalling the assembly, lower it into place squarely to make sure
its connector seats correctly in the Interconnect assembly connector.
Accessing the Digital Assembly (A5)
6-9.
Warning
To avoid electrical shock, do not proceed with the following
access procedure until you have completed the initial access
procedure, which removes line power and checks for high
voltage on the power supply.
The Digital assembly is oriented vertically just behind the front panel. Proceed as
follows to access the Digital Assembly:
1.
Perform the Initial Access Procedure.
2.
Refer to Figure 6-5 for accessing the Digital assembly. Remove the six Allen-head
screws from the sides of the front handles, and remove the three screws from the
front edge of the bottom cover. (You have already removed the top cover in step 1.)
3.
The front panel remains connected by the Digital assembly ribbon cable and the
current output cable. Remove the screw in the center of the Digital assembly to free
the pca.
Содержание 5725A
Страница 2: ......
Страница 6: ...5725A Instruction Manual iv...
Страница 8: ...5725A Instruction Manual vi...
Страница 10: ...5725A Instruction Manual viii...
Страница 12: ......
Страница 18: ...5725A Instruction Manual 1 2...
Страница 34: ...5725A Instruction Manual 1 18...
Страница 36: ...5725A Instruction Manual 2 2...
Страница 44: ...5725A Instruction Manual 2 10...
Страница 46: ...5725A Instruction Manual 3 2...
Страница 62: ...5725A Instruction Manual 4 4 Figure 4 1 5725A Overall Block Diagram...
Страница 75: ...Theory of Operation Detailed Circuit Description 4 4 17 aq19f eps Figure 4 2 Digital Assembly Block Diagram...
Страница 78: ...5725A Instruction Manual 4 20 aq20f eps Figure 4 3 Current Amplifier Assembly Block Diagram...
Страница 96: ...5725A Instruction Manual 4 38...
Страница 98: ...5725A Instruction Manual 5 2...
Страница 100: ...5725A Instruction Manual 5 4...
Страница 102: ...5725A Instruction Manual 6 2...
Страница 118: ...5725A Instruction Manual 7 2...
Страница 126: ...5725A Instruction Manual 7 10...
Страница 128: ...5725A Instruction Manual 8 2...
Страница 132: ...5725A Instruction Manual 8 6 aq24f tif Figure 8 1 Final Assembly...
Страница 133: ...List of Replaceable Parts 8 8 7 aq25f tif Figure 8 1 Final Assembly cont...
Страница 134: ...5725A Instruction Manual 8 8 aq26f tif Figure 8 1 Final Assembly cont...
Страница 135: ...List of Replaceable Parts 8 8 9 aq27f tif Figure 8 1 Final Assembly cont...
Страница 136: ...5725A Instruction Manual 8 10 aq28f tif Figure 8 1 Final Assembly cont...
Страница 137: ...List of Replaceable Parts 8 8 11 aq29f tif Figure 8 1 Final Assembly cont...
Страница 138: ...5725A Instruction Manual 8 12 aq30f tif Figure 8 1 Final Assembly cont...
Страница 139: ...List of Replaceable Parts 8 8 13 aq31f tif Figure 8 1 Final Assembly cont...
Страница 141: ...List of Replaceable Parts 8 8 15 5725A 1611 aq36f eps Figure 8 2 A1 Interconnect PCA...
Страница 145: ...List of Replaceable Parts 8 8 19 5725A 1650 aq37f eps Figure 8 3 A2 Current Amplifier PCA...
Страница 149: ...List of Replaceable Parts 8 8 23 5725A 1661 aq38f eps Figure 8 4 A3 High Voltage Amplifier PCA...
Страница 153: ...List of Replaceable Parts 8 8 27 5725A 1631 aq39f eps Figure 8 5 A4 Power Supply PCA...
Страница 155: ...List of Replaceable Parts 8 8 29 5725A 1650 aq40f eps Figure 8 6 A5 Digital PCA...
Страница 159: ...List of Replaceable Parts 8 8 33 5725A 1601 aq41f eps Figure 8 7 A6 High Voltage Sense PCA...
Страница 161: ...List of Replaceable Parts 8 8 35 aq32f tif Figure 8 8 A12 Transformer Enclosure Assembly...
Страница 162: ...5725A Instruction Manual 8 36 aq33f tif Figure 8 8 A12 Transformer Enclosure Assembly cont...
Страница 163: ...List of Replaceable Parts 8 8 37 aq34f tif Figure 8 8 A12 Transformer Enclosure Assembly cont...
Страница 164: ...5725A Instruction Manual 8 38 aq35f tif Figure 8 8 A12 Transformer Enclosure Assembly cont...
Страница 166: ...5725A Instruction Manual 8 40...
Страница 168: ...5725A Instruction Manual 9 2...
Страница 169: ...Schematic Diagrams 9 3 9 Figure 9 1 A1 Interconnect PCA 5725A 1611 aq48f eps...
Страница 170: ...5725A Instruction Manual 9 4 Figure 9 1 A1 Interconnect PCA cont...
Страница 171: ...Schematic Diagrams 9 5 9 Figure 9 1 A1 Interconnect PCA cont...
Страница 172: ...5725A Instruction Manual 9 6 Figure 9 2 A2 Current Amplifier PCA 5725A 1650 aq52f eps...
Страница 173: ...Schematic Diagrams 9 7 9 Figure 9 2 A2 Current Amplifier PCA cont...
Страница 174: ...5725A Instruction Manual 9 8 Figure 9 2 A2 Current Amplifier PCA cont...
Страница 175: ...Schematic Diagrams 9 9 9 Figure 9 2 A2 Current Amplifier PCA cont...
Страница 176: ...5725A Instruction Manual 9 10 Figure 9 3 A3 High Voltage Amplifier PCA 5725A 1661 aq56f eps...
Страница 177: ...Schematic Diagrams 9 11 9 Figure 9 3 A3 High Voltage Amplifier PCA cont...
Страница 178: ...5725A Instruction Manual 9 12 Figure 9 3 A3 High Voltage Amplifier PCA cont...
Страница 179: ...Schematic Diagrams 9 13 9 Figure 9 4 A4 Power Supply PCA 5725A 1631 aq59f eps...
Страница 180: ...5725A Instruction Manual 9 14 Figure 9 4 A4 Power Supply PCA cont...
Страница 181: ...Schematic Diagrams 9 15 9 Figure 9 4 A4 Power Supply PCA cont...
Страница 183: ...Schematic Diagrams 9 17 9 Figure 9 5 A5 Digital PCA cont...
Страница 185: ...Schematic Diagrams 9 19 9 Figure 9 6 A6 High Voltage Sense PCA cont...
Страница 186: ...5725A Instruction Manual 9 20 Figure 9 6 A6 High Voltage Sense PCA cont...
Страница 187: ...Schematic Diagrams 9 21 9 Figure 9 6 A6 High Voltage Sense PCA cont...
Страница 188: ...5725A Instruction Manual 9 22 Figure 9 6 A6 High Voltage Sense PCA cont...
Страница 189: ...Schematic Diagrams 9 9 23 aq45f eps Figure 9 7 A12 Transformer Enclosure Assembly...
Страница 190: ...5725A Instruction Manual 9 24...
Страница 194: ...5725A Instruction Manual 4...