HP 3478A - Page 9

TM 11-6625-3071-14
LIST OF ILLUSTRATIONS
Figure Page
2-1. Line Frequency Switch ....................2-1
2-2. Line Select Jumper ..........................2-2
2-3. Power Cords ....................................2-2
2-4. Typical HP-IB System
Interconnection ................................2-3
2-5. HP-IB Connector .............................2-4
2-6. 3478A Address Switch .....................2-4
3-1. 3478A Front and Rear Panel
Features ..........................................3-2
3-2. Typical Input Measurement
Connection .......................................3-3
3-3. Typical Current Measurement
Connection .......................................3-3
3-4. Ohms Connections ..........................3-4
3-5. Autoranging Points ..........................3-6
3-6. Status Byte .....................................3-9
4-1. Ambiguous Regions ........................4-4
4-2. DC Volts Accuracy Test
and Calibration .................................4-6
4-3. DC Common Mode Rejection Test...4-7
4-4. DC Current Accuracy Test
and Calibration .................................4-8
4-5. AC Current Accuracy Test
and Calibration .................................4-10
4-6. 4-Wire Ohms Short ..........................4-11
4-7. 4-Wire Ohms Connection ................4-11
5-1. 3478A Front Panel View 5-9/5-10
5-2. 3478A Rear Panel View 5-9/5-10
5-3. 3478A Bottom View . 5-9/5-10
5-4. 3478A Left Side View 5-9/5-10
5-5. Bottom View With
Cover Removed ...............................5-11
5-6. Top View With
Cover Removed................................5-11
5-7. Front Panel Bracket View ................5-11
5-8. Front Panel Assembly ......................5-11
7-A-1.JM403 SA Connection .....................7-A-4
7-B-1. JM403 SA Connection .....................7-B-2
7-C-1.JM403 SA Connection. ....................7-C-4
7-D-1. US01 ALE Signal .............................7-D-2
7-D-2.Flowchart A.......................................7-D-3
Figure Page
7-D-3. Flowchart B......................................7-D-5
7-D-4. Flowchart C .....................................7-D-6
7-D-5. U462 ALE Signal .............................7-D-8
7-D-6. Flowchart D .....................................7-D-9
7-D-7. JM403 SA Connection.....................7-D-10
7-F-1. 3478A Simplified Block
Diagram ...........................................7-F-2
7-F-2. Simplified Schematic of the
Input Switching Circuitry ..................7-F-4
7-F-3. Simplified Schematic of the
DC/Ohms Input Amplifier ................7-F-6
7-F-4. Ohms Circuitry Configuration ..........7-F-6
7-F-5. AC Gain Configurations ...................7-F-8
7-F-6. Dual Slope Conversion ....................7-F-9
7-F-7. Simplified A/D Converter ..............7-F-10
7-F-8. Integrator (U401) Output
Slopes ..........................................7-F-10
7-F-9. Runup Slopes
(4 1/2 Digit Model) ........................7-F-11
7-F-10. Runup Slopes For Zero Inputs
4 1/2 Model) .................................7-F-12
7-F-11. Slope S + 4 Generation ................7-F-12
7-F-12. Slope S - 4 Generation .................7-F-12
7-F-13. Slope S+0 and S-0
Generation ....................................7-F-13
7-F-14. Rundown Slopes ..........................7-F-13
7-F-15. Determining the DAC Setting .......7-F-15
7-F-16. A/D Hybrid (U403) ........................7-F-15
7-F-17. 3478A Simplified Reference
Circuitry ........................................7-F-16
7-F-18. Power-On Circuitry .......................7-F-17
7-F-19. Reset Circuitry ..............................7-F-18
7-G-1. General Schematic Notes ...............7-G-1
7-G-2. 3478A Block Diagram .....................7-G-3
7-G-3. Input Circuitry and
Ohms Current Source 7-G-5/7-G-6
7-G-4. AC to DC Converter ........................7-G-7
7-G-5. A/D Converter and
Control Logic ......................7-G-9/7-G-10
7-G-6. Power Supplies ...............7-G-11/7-G-12
A-1. Interface Connection and
Bus Structure...............................A-2
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