HP 3478A Technical Manual page 8

Section Page
V. REPLACEABLE PARTS............................... 5-1
5-1. Introduction .................................................... 5-1
5-4. Ordering Information...................................... 5-1
5-6. Non-Listed Parts ............................................ 5-1
5-8. Parts Changed............................................... 5-1
5-10. Propriety Parts ............................................... 5-1
5-12. 3478a Disassembly Procedure...................... 5-2
Section Page
VI. BACKDATING ............................................... 6-1
6-1. Introduction ....................................... 6-1
Section
VII. SERVICE ....................................................... 7-1
7-1. Introduction .................................................... 7-1
7-3. Safety Consideration ..................................... 7-1
7-8. Recommended Test Equipment
7-10. Miscellaneous Information............................. 7-1
7-11. Instrument Disassembly
(PC Board Replacement) ........................................ 7-1
7-13. Fuse Replacement ........................................ 7-1
Tables
3-1. Shifted Operations ......................................... 3-6
3-2. 3478A Error Messages .................................. 3-7
3-3. 3478A Bus Capabilities.................................. 3-8
3-4. Status Byte Definitions................................... 3-10
3-5. 3478A Address Codes................................... 3-11
3-6. 3478A Program Codes .................................. 3-12
3-7. Binary Status Byte Definition ......................... 3-14
4-1. Abbreviated Specifications Table .................. 4-1
4-2. Recommended Test Equipment .................... 4-2
4-3. DC Volts Test Limits ...................................... 4-5
4-4. DC Current Test Limits .................................. 4-7
4-5. AC Volts Test Limits ...................................... 4-8
4-6. AC Current Test Limits .................................. 4-9
4-7. Ohms Test Limits .......................................... 4-10
TABLE OF CONTENTS (Cont'd)
Section
7-15. Troubleshooting............................................. 7-2
7-16. Introduction.................................................... 7-2
7-18. 3478A Self-Test............................................. 7-2
7-27. Service Group Selection................................ 7-2
Service Groups ....................................................Page
A
B
C
D
Page
E
F
LIST OF TABLES
Page Tables
4-8. DC Volts Calibration and Test ....................... 4-13
4-9. DC Current Calibration and Test ................... 4-15
4-10. AC Volts Calibration and Test ....................... 4-17
4-11. AC Current Calibration and Test ................... 4-18
4-12. Ohms Calibration and Test ........................... 4-19
5-1. Standard Abbreviations ................................. 5-1
5-2. Code List of Manufacturers ........................... 5-2
5-3. Replaceable Parts List .................................. 5-3
5-4. 3478A Mechanical and
7-1. 3478A Service Groups ................................. 7-2
7-F-1. Ohms Current and Ranges .......................... 7-F-7
7-F-2. AC Amplifier ................................................ 7-F-9
A-1.
A-2. HP-IB Worksheet .......................................... A-4
iv
DC Volts and DC Current
Troubleshooting ...................................... 7-A-1
AC Volts and AC Current
Troubleshooting ..................................... 7-B-1
Ohms Troubleshooting ............................... 7-C-1
A/D Converter and Logic
Troubleshooting ...................................... 7-D-1
Power Supplies and Reference
Troubleshooting ..................................... 7-E-1
Theory of Operation ....................................7-F-1
Schematics....................................... 7-G-1/7-G-2
APPENDIX A...................................................... A-1
B. References ....................................... B-1
C. Components of End Item
List.................................................... C-1
D. Additional Authorization
List(Not Application:)
E. Maintenance Allocation .................... E-1
F. Expendable Supplies and
Material List(N/A)
Miscellaneous Parts ...................................... 5-9
3478A Device Capability .............................. A-3
TM 11-6625-3071-14
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