Boonton 1121A - Page 7

III
Paragraph Page
3-96. Program Function Mnemonics ........................................................................................... 3-22
3-97. Number Formatting ............................................................................................................ 3-22
3-98. Data String Format ........................................................................................................... 3-22
3-99. Data String Errors .............................................................................................................. 3-23
3-100. Data String Examples ...................................................................................................... 3-23
3-101. Store and Recall Operation ............................................................................................ 3-23
SECTION IV - THEORY OF OPERATION
4-1. INTRODUCTION ................................................................................................................... 4-1
4-3. FUNCTIONAL BLOCK DIAGRAM ......................................................................................... 4-1
4-14. DETAILED CIRCUIT DESCRIPTION ................................................................................ 4-3
4-15. A11 Power Supply Circuits ................................................................................................. 4-3
4-20. A10 Motherboard Circuits .................................................................................................... 4-5
4-23. A5 CPU Circuits ................................................................................................................... 4-5
4-31. A12 Display and A13 Keyboard Circuits .............................................................................. 4-7
4-35. A4 Frequency Counter Circuits .......................................................................................... 4-7
4-44. A0 Input Circuits ................................................................................................................. 4-8
4-51. A1 Filter Circuits ................................................................................................................. 4-9
4-55. A2 Notch Filter Circuits ...................................................................................................... 4-10
4-61. A3 Detector Circuits ........................................................................................................... 4-11
4-68. A6 Source Circuits ............................................................................................................. 4-13
4-76. A7 Output Circuits ............................................................................................................ 4-14
SECTION V - MAINTENANCE
5-1. INTRODUCTION ................................................................................................................... 5-1
5-3. SAFETY REQUIREMENTS ................................................................................................... 5-1
5-5. REQUIRED TEST EQUIPMENT .......................................................................................... 5-1
5-7. CLEANING PROCEDURE ................................................................................................... 5-1
5-9. REMOVAL AND REPLACEMENT ......................................................................................... 5-1
5-10. Instrument Covers .............................................................................................................. 5-1
5-11. Display/Keyboard Access .................................................................................................. 5-1
5-12. Plug-in Circuit Board ............................................................................................................ 5-3
5-13. Optional Filters ................................................................................................................... 5-3
5-14. Firmware Integrated Circuit .............................................................................................. 5-4
5-15. Component Removal ........................................................................................................... 5-4
5-16. INSPECTION ....................................................................................................................... 5-4
5-18. PERFORMANCE TESTS ................................................................................................... 5-5
5-20. Initial Calibration ................................................................................................................ 5-5
5-21. Analyzer DC Level Accuracy .............................................................................................. 5-5
5-22. Analyzer AC Level Accuracy ............................................................................................... 5-5
5-23. Analyzer Level Flatness ..................................................................................................... 5-6
5-25. Source Impedance Accuracy ............................................................................................... 5-6
5-26. Source Level Accuracy ........................................................................................................ 5-6
5-28. Source Level Flatness ......................................................................................................... 5-6
5-31. Analyzer Low Level AC Accuracy ........................................................................................ 5-7
5-32. Frequency Accuracy ............................................................................................................ 5-7
5-33. Source Frequency Accuracy ................................................................................................ 5-7
5-34. Analyzer Frequency Accuracy ........................................................................................... 5-7
5-35. Low-Pass Filter Accuracy ................................................................................................... 5-8