Chapter 1. INTRODUCTION
Figure 1-1. Microwave Calibration Test Set AN/USM2.
Figure 1-1. Microwave Calibration Test Set AN/USM2 - continued
Chapter 2. THEORY OF OPERATION
Figure 2-1. Signal Source Function Diagram
CW Mode of Operation
Figure 2-2. Rf Heads, Block Diagram.
Figure 2-3. Base Structure of a BWO Tube.
Figure 2-4. BWO Tube Operation.
Figure 2-5. Typical Performance Characteristic8 of a BWO Tube.
Figure 2-6. BWO Power Supply, Overall Block Diagram
Figure 2-7. Regulated Filament Supply and Varactor Bias Supply, Functional Diagram
Figure 2-8. "22.5Volt Power Supply, Block Diagram
Figure 2-9. 40 Volt Power Supply, Block Diagram.
Figure 2-10. Helix and Collector Supplies, Block Diagram.
Figure 2-11. Shaper Network, Simplified Schematic.
Regulator error amplifier
Figure 2-12. Regulator Error Amplifier, Block Diagram
Figure 2-13. Sweep Generator, Block Diagram
Figure 2-14. Anode Supply, Block Diagram.
Tunable Synchronizer
Figure 2-15. Tunable Synchronizer, Block Diagram.
Figure 2-16. Frequency Multiplier Chain, Block Diagram.
Section II. THEORY OF MASUREMENT TECHNIQUES
Frequency Measurement of a Passive Device
Figure 2-18. Frequency Measurement of an Active Source Above 12i. GHz, Block Diagram.
Figure 2-19. Frequency Measurement of an Active Source Above 12.4 GHz, Block Diagram.
Figure 2-20. Effects of Signal Input Level on Calibration of a Passive Device.
Figure 2-21. Frequency Measurement of a Passive Device Above 124S GHz, Bloc Diagram.
Figure 2-22. Rf Power Measurement, Block Diagram.
Figure 2-23. VSWR Measurements Below I GHz, Block Diagram.
Magnitude of Reflection Coefficient Measurement.
Figure 2-24. Magnitude of Reflection Coefficient Measurement Above 1 GHz, Block Diagram.
Figure 2-25. Attenuation Measurements, Block Diagram.
Figure 2-26. Microwave Receiver, Simplified Block Diagram.
Chapter 3. TROUBLESHOOTING
Preliminary Procedure.
Table 3-1 Operational Check and Troubleshooting Chart of Frequency Measurement Setups for An Active Source Below 15 GHz
Table 3-2. Operational Check and Troubleshooting Chart of Frequency Measurement Setups for an Active Source Above 12.4 GHz - TM-9-4931-294-15-20043
Table 3-2. Operational Check and Troubleshooting Chart of Frequency Measurement Setups for an Active Source Above 12.4 GHz - TM-9-4931-294-15-20044
Table 3-3. Operational Check and Troubleshooting Chart of Free Measurement Setups for a Passive Device Between 1.0 and 124 GHs
Table 3-3. Operational Check and Troubleshooting Chart of Free Measurement Setups for a Passive Device Between 1.0 and 124 GHs - continued - TM-9-4931-294-15-20046
Table 3-3. Operational Check and Troubleshooting Chart of Free Measurement Setups for a Passive Device Between 1.0 and 124 GHs - continued - TM-9-4931-294-15-20047
Table 3-4 Operational Check and Troubleshooting Chart of Frequency Measurement Setups for a Passive Device Above 12.4. GHz
Table 3-4 Operational Check and Troubleshooting Chart of Frequency Measurement Setups for a Passive Device Above 12.4. GHz - continued
Operational Check and Troubleshooting of Power Measurement Setup
Table 3-6. Operational Check and Troubleshooting Chart of Reflection Coefficient Measurement Setups in Frequency Ranges from 1 to 2 GHz and 12.4 to 40 GHz
Table 3-6. Operational Check and Troubleshooting Chart of Reflection Coefficient Measurement Setups in Frequency Ranges from 1 to 2 GHz and 12.4 to 40 GHz - continued - TM-9-4931-294-15-20052
Table 3-6. Operational Check and Troubleshooting Chart of Reflection Coefficient Measurement Setups in Frequency Ranges from 1 to 2 GHz and 12.4 to 40 GHz - continued - TM-9-4931-294-15-20053
Table 3-6. Operational Check and Troubleshooting Chart of Reflection Coefficient Measurement Setups in Frequency Ranges from 1 to 2 GHz and 12.4 to 40 GHz - continued - TM-9-4931-294-15-20054
Table 3-7. Operational Check and Troubleshooting Chart of Reflection Coefficient Measurement Setups in Frequency Range from 2 to 124 GHz
Table 3-7. Operational Check and Troubleshooting Chart of Reflection Coefficient Measurement Setups in Frequency Range from 2 to 124 GHz - continued - TM-9-4931-294-15-20056
Table 3-7. Operational Check and Troubleshooting Chart of Reflection Coefficient Measurement Setups in Frequency Range from 2 to 124 GHz - continued - TM-9-4931-294-15-20057
Table 3-7. Operational Check and Troubleshooting Chart of Reflection Coefficient Measurement Setups in Frequency Range from 2 to 124 GHz - continued - TM-9-4931-294-15-20058
Table 3-7. Operational Check and Troubleshooting Chart of Reflection Coefficient Measurement Setups in Frequency Range from 2 to 124 GHz - continued - TM-9-4931-294-15-20059
'Unknown' by LOGSA - Page 1 of 185
Table 3-8. Operational Check and Troubleshooting Chart of VSWR Measurement Setup Below 1 GHz
Table 3-8. Operational Check and Troubleshooting Chart of VSWR Measurement Setup Below 1 GHz - continued
Table 3-9. Operational Check and Troubleshooting Chart of Attenuation Measurement Setups
Table 3-9. Operational Check and Troubleshooting Chart of Attenuation Measurement Setups - continued - TM-9-4931-294-15-20064
Table 3-9. Operational Check and Troubleshooting Chart of Attenuation Measurement Setups - continued - TM-9-4931-294-15-20065
Operational Check and Troubleshooting of Signal Source Leveling Setup
Table 3-10. Operational Check and Troubleshooting Chart of Signal Source Leveling Setup
Table 3-10. Operational Check and Troubleshooting Chart of Signal Source Leveling Setup - continued - TM-9-4931-294-15-20068
Table 3-10. Operational Check and Troubleshooting Chart of Signal Source Leveling Setup - continued - TM-9-4931-294-15-20069
Table 3-10. Operational Check and Troubleshooting Chart of Signal Source Leveling Setup - continued - TM-9-4931-294-15-20070
Table 3-10. Operational Check and Troubleshooting Chart of Signal Source Leveling Setup - continued - TM-9-4931-294-15-20071
Section III. SIGNAL SOURCE RF HEAD TROUBLESHOOTING
Table 3-11. P-Band Rf Head Test Chart
Table 3-11. P-Band Rf Head Test Chart - continued
Figure 3-1. P-Band Rf Head, Microwave Schematic Diagram.
Figure 3-2. P-Band RI Head, Electrical Schematic Diagram (System Serial Numbers 101 through 126).
Figure 3-3. P-Band RI Head, Electrical Schematic Diagram (System Serial Numbers 117 and Higher).
Apparatus List for Figure 3-2
Table 3-12. L-Band Rf Head Test Chart
Table 3-12. L-Band Rf Head Test Chart - continued
Figure 3-4. L-Band RI Head, Microwave Schematic Diagram.
Figure 3-5. L-Band RI Head, Electrical Schematic Diagram.
Apparatus List for Figure S 6
Table 3-11. S-Band Rf Head Test Chart
Table 3-11. S-Band Rf Head Test Chart - continued
Figure 3-6. S-Band Rf Head, Microwave Schematic Diagram.
Figure 3-7. S-Band Rf Head, Electrical Schematic Diagram.
Apparatus List for Figure 3-7
Table 3-14. C-Band Rf Head Test Chart
Table 3-14. C-Band Rf Head Test Chart - continued
Figure 3-8. C-Band Rf Head, Microwave Schematic Diagram.
Figure 3-9. C-Band Rf Head., Electrical Schematic Diagram.
Apparatus List for Figure 3-9
Table 3-15. X-Band RF Head Test Chart
Table 3-15. X-Band RF Head Test Chart - continued
Figure 3-10. X-Band Rf Head, Microwave Schematic Diagram.
Figure 3-11. X-Band Rf Head, Electrical Schematic Diagram
Apparatus List for Figure 3-11
Table 3-16. U-Band Rf Head Test Chart
Table 3-16. U-Band Rf Head Test Chart - continued
Figure 3-12. U-Band Rf Head, Microwave Schematic Diagram.
Figure 3-13. U-Band Rf Head, Electrical Schematic Diagram.
Apparatus List for Figure 3-13
Table 3-17. K-Band Rf Head Test Chart
Table 3-17. K-Band Rf Head Test Chart - continued
Figure 3-14. H-Band Rf Head, Microwave Schematic Diagram.
Figure 3-15. K-Band Rf Head, Electrical Schematic Diagram.
Apparatus List for Figure 3-15
Table 3-18. A-Band Rf Head Test Chart.
Table 3-18. A-Band Rf Head Test Chart. - continued
Figure 3-16. A-Band Rf Head, Microwave Schematic Diagram.
Figure 3-17. A-Band Rf Head, Electrical Schematic Diagram (System Serial Numbers 101 Through 126).
Figure 3-18. A-Band Rf Head, Electrical Schematic Diagram (System Serial Numbers 127 and Higher).
Apparatus List for Figure 3-17
Rf Head Unit Resistance Chart
Figure 3-19. Unit Resistance Chart.
Chapter 4. REPAIR AND OVERHAUL
Section III. REMOVAL AND REINSTALLATION OF EQUIPMENT IN COMBINATION CASES
Figure 4-1. Removal and Reinstallation of Signal Source in Combination Case No. 1.
Figure 4-2. Disassembly and Assembly of Signal Source.
Figure 4-3. Removal and Reinstallation of Graphic Display System and Combining Case in Combination Case No. 2.
Figure 4-4. Disassembly and assembly of combining case.
Figure 4-5. Removal and Reinstallation of Microwave Receiver in Combination Case No.3.
Figure 4-6. Removal and Reinstallation of RI Heads in Combination Case No. 4.
Figure 4-7. Removal and Reinstallation of Digital Counter and Digital Multimeter in Combination Case No. 5.
Removal and Reinstallation of Rf Head Assemblies in Combination CaseNo. 4
Figure 4-8. Removal and Reinstallation of Modulator in Combination Case No. 10.
Section IV. DISASSEMBLY AND ASSEMBLY OF RF PLUG--IN HEADS
Figure 4-10. P-band Rf Head, Exploded View.
Figure 4-10. Continued
Figure 4-11. P-Band RF Head, Wiring Diagram.
Disassembly of P--band Rf Head
Figure 4-12. Connector Bracket Assembly, Exploded View
Figure 4-13. Counter Assembly 7923056--1, Exploded View.
Figure 4-14. L-Band Rf Head, Exploded View.
Figure 4-14. L-Band Rf Head, Exploded View - continued
Disassembly and Assembly of L-Band Rf Head
Figure 4-15. L-Band Rf Head, Wiring Diagram.
Figure 4-16. Counter Assembly 7923056--2, Exploded View.
Disassembly and Assembly of the Counter Assembly - TM-9-4931-294-15-20140
Figure 4-17. S-Band Rf Head, Exploded View.
Figure 4-17. S-Band Rf Head, Exploded View - continued
Figure 4-18. S-Band Rf Head, Wiring Diagram.
Figure 4-19. Counter Assembly 79230563, Exploded View.
Disassembly and Assembly of C- and X-Band Rf Head
Figure 4-20. C- AND X-BAND Rf HEAD, Exploded View.
Replacement of C-Band BWO Tube 7923109.
Figure 4-21. C-Band Rf Head, Wiring Diagram.
Figure 4-22. X-Band Rf Head, Wiring Diagram
Replacement of X-Band BWO Tube 792110.
Figure 4-23. Connector Bracket Assemblies, C- and X-Band Rf Head, Exploded View.
Figure 4-24. Counter Assembly 7923056-4 (C-Band) and 7923056-5 (X-Band), Exploded View.
Figure 4-25. U-Band Rf Head, Exploded View.
Figure 4-25. U-Band Rf Head, Exploded View - continued
Figure 4-26. U-Band RI Head, Wiring Diagram
Disassembly and Assembly of U-Band Rf Head
Figure 4-27. Counter Assembly 7923056-6, Exploded View.
Replacement of BWO Tube 79$l111.
Figure 4-28. K Band Rf Head 7923025, Exploded view.
Figure 4-28. View-Continued
Disassembly and Assembly of K-Band Rf Head
Figure 4-29. K-Band RI Head, Wiring Diagram.
Figure 4-30. Counter Assembly 7923056-7, Exploded View.
Disassembly and Assembly of the Counter Assembly - TM-9-4931-294-15-20164
Figure 4-31. A-Band Rf Head, Exploded View.
Figure 4-31. A-Band Rf Head, Exploded View - continued
Figure 4-32. A-Band RI Held, Wiring Diagram.
Figure 4-33. Counter Assembly 7923056-8, Exploded View.
Section V. REMOVAL AND INSTALLATION OF A COMBINATION CASE DRAWER AND DISASSEMBLY AND ASSEMBLY OF COMBINATION CASE
Figure 4-34. Removal and Installation of a Typical Drawer.
Figure 4-35. Combination Case, Exploded View
Section VI. ALIGNMENT PROCEDURES FOR RF PLUG-IN SIGNAL SOURCES
Section VII. SEALING, FINISHING AND PAINTING
Chapter 5. FINAL INSPECTION
Chapter 6. SHIPMENT, STORAGE, AND DESTRUCTION OF MATERIAL TO PREVENT ENEMY USE
Shipping Instructions
Destruction of the Test Set
Method No. 4-By Gunfire
TM-9-4931-294-15-2 Microwave Calibration Test Set AN/USM234 (Theory of Operation Troubleshooting Repair and Overhaul) Manual
Figure 1-1. Microwave Calibration Test Set AN/USM2.
Figure 1-1. Microwave Calibration Test Set AN/USM2 - continued
Chapter 2. THEORY OF OPERATION
Figure 2-1. Signal Source Function Diagram
CW Mode of Operation
Figure 2-2. Rf Heads, Block Diagram.
Figure 2-3. Base Structure of a BWO Tube.
Figure 2-4. BWO Tube Operation.
Figure 2-5. Typical Performance Characteristic8 of a BWO Tube.
Figure 2-6. BWO Power Supply, Overall Block Diagram
Figure 2-7. Regulated Filament Supply and Varactor Bias Supply, Functional Diagram
Figure 2-8. "22.5Volt Power Supply, Block Diagram
Figure 2-9. 40 Volt Power Supply, Block Diagram.
Figure 2-10. Helix and Collector Supplies, Block Diagram.
Figure 2-11. Shaper Network, Simplified Schematic.
Regulator error amplifier
Figure 2-12. Regulator Error Amplifier, Block Diagram
Figure 2-13. Sweep Generator, Block Diagram
Figure 2-14. Anode Supply, Block Diagram.
Tunable Synchronizer
Figure 2-15. Tunable Synchronizer, Block Diagram.
Figure 2-16. Frequency Multiplier Chain, Block Diagram.
Section II. THEORY OF MASUREMENT TECHNIQUES
Frequency Measurement of a Passive Device
Figure 2-18. Frequency Measurement of an Active Source Above 12i. GHz, Block Diagram.
Figure 2-19. Frequency Measurement of an Active Source Above 12.4 GHz, Block Diagram.
Figure 2-20. Effects of Signal Input Level on Calibration of a Passive Device.
Figure 2-21. Frequency Measurement of a Passive Device Above 124S GHz, Bloc Diagram.
Figure 2-22. Rf Power Measurement, Block Diagram.
Figure 2-23. VSWR Measurements Below I GHz, Block Diagram.
Magnitude of Reflection Coefficient Measurement.
Figure 2-24. Magnitude of Reflection Coefficient Measurement Above 1 GHz, Block Diagram.
Figure 2-25. Attenuation Measurements, Block Diagram.
Figure 2-26. Microwave Receiver, Simplified Block Diagram.
Chapter 3. TROUBLESHOOTING
Preliminary Procedure.
Table 3-1 Operational Check and Troubleshooting Chart of Frequency Measurement Setups for An Active Source Below 15 GHz
Table 3-2. Operational Check and Troubleshooting Chart of Frequency Measurement Setups for an Active Source Above 12.4 GHz - TM-9-4931-294-15-20043
Table 3-2. Operational Check and Troubleshooting Chart of Frequency Measurement Setups for an Active Source Above 12.4 GHz - TM-9-4931-294-15-20044
Table 3-3. Operational Check and Troubleshooting Chart of Free Measurement Setups for a Passive Device Between 1.0 and 124 GHs
Table 3-3. Operational Check and Troubleshooting Chart of Free Measurement Setups for a Passive Device Between 1.0 and 124 GHs - continued - TM-9-4931-294-15-20046
Table 3-3. Operational Check and Troubleshooting Chart of Free Measurement Setups for a Passive Device Between 1.0 and 124 GHs - continued - TM-9-4931-294-15-20047
Table 3-4 Operational Check and Troubleshooting Chart of Frequency Measurement Setups for a Passive Device Above 12.4. GHz
Table 3-4 Operational Check and Troubleshooting Chart of Frequency Measurement Setups for a Passive Device Above 12.4. GHz - continued
Operational Check and Troubleshooting of Power Measurement Setup
Table 3-6. Operational Check and Troubleshooting Chart of Reflection Coefficient Measurement Setups in Frequency Ranges from 1 to 2 GHz and 12.4 to 40 GHz
Table 3-6. Operational Check and Troubleshooting Chart of Reflection Coefficient Measurement Setups in Frequency Ranges from 1 to 2 GHz and 12.4 to 40 GHz - continued - TM-9-4931-294-15-20052
Table 3-6. Operational Check and Troubleshooting Chart of Reflection Coefficient Measurement Setups in Frequency Ranges from 1 to 2 GHz and 12.4 to 40 GHz - continued - TM-9-4931-294-15-20053
Table 3-6. Operational Check and Troubleshooting Chart of Reflection Coefficient Measurement Setups in Frequency Ranges from 1 to 2 GHz and 12.4 to 40 GHz - continued - TM-9-4931-294-15-20054
Table 3-7. Operational Check and Troubleshooting Chart of Reflection Coefficient Measurement Setups in Frequency Range from 2 to 124 GHz
Table 3-7. Operational Check and Troubleshooting Chart of Reflection Coefficient Measurement Setups in Frequency Range from 2 to 124 GHz - continued - TM-9-4931-294-15-20056
Table 3-7. Operational Check and Troubleshooting Chart of Reflection Coefficient Measurement Setups in Frequency Range from 2 to 124 GHz - continued - TM-9-4931-294-15-20057
Table 3-7. Operational Check and Troubleshooting Chart of Reflection Coefficient Measurement Setups in Frequency Range from 2 to 124 GHz - continued - TM-9-4931-294-15-20058
Table 3-7. Operational Check and Troubleshooting Chart of Reflection Coefficient Measurement Setups in Frequency Range from 2 to 124 GHz - continued - TM-9-4931-294-15-20059
'Unknown' by LOGSA - Page 1 of 185
Table 3-8. Operational Check and Troubleshooting Chart of VSWR Measurement Setup Below 1 GHz
Table 3-8. Operational Check and Troubleshooting Chart of VSWR Measurement Setup Below 1 GHz - continued
Table 3-9. Operational Check and Troubleshooting Chart of Attenuation Measurement Setups
Table 3-9. Operational Check and Troubleshooting Chart of Attenuation Measurement Setups - continued - TM-9-4931-294-15-20064
Table 3-9. Operational Check and Troubleshooting Chart of Attenuation Measurement Setups - continued - TM-9-4931-294-15-20065
Operational Check and Troubleshooting of Signal Source Leveling Setup
Table 3-10. Operational Check and Troubleshooting Chart of Signal Source Leveling Setup
Table 3-10. Operational Check and Troubleshooting Chart of Signal Source Leveling Setup - continued - TM-9-4931-294-15-20068
Table 3-10. Operational Check and Troubleshooting Chart of Signal Source Leveling Setup - continued - TM-9-4931-294-15-20069
Table 3-10. Operational Check and Troubleshooting Chart of Signal Source Leveling Setup - continued - TM-9-4931-294-15-20070
Table 3-10. Operational Check and Troubleshooting Chart of Signal Source Leveling Setup - continued - TM-9-4931-294-15-20071
Section III. SIGNAL SOURCE RF HEAD TROUBLESHOOTING
Table 3-11. P-Band Rf Head Test Chart
Table 3-11. P-Band Rf Head Test Chart - continued
Figure 3-1. P-Band Rf Head, Microwave Schematic Diagram.
Figure 3-2. P-Band RI Head, Electrical Schematic Diagram (System Serial Numbers 101 through 126).
Figure 3-3. P-Band RI Head, Electrical Schematic Diagram (System Serial Numbers 117 and Higher).
Apparatus List for Figure 3-2
Table 3-12. L-Band Rf Head Test Chart
Table 3-12. L-Band Rf Head Test Chart - continued
Figure 3-4. L-Band RI Head, Microwave Schematic Diagram.
Figure 3-5. L-Band RI Head, Electrical Schematic Diagram.
Apparatus List for Figure S 6
Table 3-11. S-Band Rf Head Test Chart
Table 3-11. S-Band Rf Head Test Chart - continued
Figure 3-6. S-Band Rf Head, Microwave Schematic Diagram.
Figure 3-7. S-Band Rf Head, Electrical Schematic Diagram.
Apparatus List for Figure 3-7
Table 3-14. C-Band Rf Head Test Chart
Table 3-14. C-Band Rf Head Test Chart - continued
Figure 3-8. C-Band Rf Head, Microwave Schematic Diagram.
Figure 3-9. C-Band Rf Head., Electrical Schematic Diagram.
Apparatus List for Figure 3-9
Table 3-15. X-Band RF Head Test Chart
Table 3-15. X-Band RF Head Test Chart - continued
Figure 3-10. X-Band Rf Head, Microwave Schematic Diagram.
Figure 3-11. X-Band Rf Head, Electrical Schematic Diagram
Apparatus List for Figure 3-11
Table 3-16. U-Band Rf Head Test Chart
Table 3-16. U-Band Rf Head Test Chart - continued
Figure 3-12. U-Band Rf Head, Microwave Schematic Diagram.
Figure 3-13. U-Band Rf Head, Electrical Schematic Diagram.
Apparatus List for Figure 3-13
Table 3-17. K-Band Rf Head Test Chart
Table 3-17. K-Band Rf Head Test Chart - continued
Figure 3-14. H-Band Rf Head, Microwave Schematic Diagram.
Figure 3-15. K-Band Rf Head, Electrical Schematic Diagram.
Apparatus List for Figure 3-15
Table 3-18. A-Band Rf Head Test Chart.
Table 3-18. A-Band Rf Head Test Chart. - continued
Figure 3-16. A-Band Rf Head, Microwave Schematic Diagram.
Figure 3-17. A-Band Rf Head, Electrical Schematic Diagram (System Serial Numbers 101 Through 126).
Figure 3-18. A-Band Rf Head, Electrical Schematic Diagram (System Serial Numbers 127 and Higher).
Apparatus List for Figure 3-17
Rf Head Unit Resistance Chart
Figure 3-19. Unit Resistance Chart.
Chapter 4. REPAIR AND OVERHAUL
Section III. REMOVAL AND REINSTALLATION OF EQUIPMENT IN COMBINATION CASES
Figure 4-1. Removal and Reinstallation of Signal Source in Combination Case No. 1.
Figure 4-2. Disassembly and Assembly of Signal Source.
Figure 4-3. Removal and Reinstallation of Graphic Display System and Combining Case in Combination Case No. 2.
Figure 4-4. Disassembly and assembly of combining case.
Figure 4-5. Removal and Reinstallation of Microwave Receiver in Combination Case No.3.
Figure 4-6. Removal and Reinstallation of RI Heads in Combination Case No. 4.
Figure 4-7. Removal and Reinstallation of Digital Counter and Digital Multimeter in Combination Case No. 5.
Removal and Reinstallation of Rf Head Assemblies in Combination CaseNo. 4
Figure 4-8. Removal and Reinstallation of Modulator in Combination Case No. 10.
Section IV. DISASSEMBLY AND ASSEMBLY OF RF PLUG--IN HEADS
Figure 4-10. P-band Rf Head, Exploded View.
Figure 4-10. Continued
Figure 4-11. P-Band RF Head, Wiring Diagram.
Disassembly of P--band Rf Head
Figure 4-12. Connector Bracket Assembly, Exploded View
Figure 4-13. Counter Assembly 7923056--1, Exploded View.
Figure 4-14. L-Band Rf Head, Exploded View.
Figure 4-14. L-Band Rf Head, Exploded View - continued
Disassembly and Assembly of L-Band Rf Head
Figure 4-15. L-Band Rf Head, Wiring Diagram.
Figure 4-16. Counter Assembly 7923056--2, Exploded View.
Disassembly and Assembly of the Counter Assembly - TM-9-4931-294-15-20140
Figure 4-17. S-Band Rf Head, Exploded View.
Figure 4-17. S-Band Rf Head, Exploded View - continued
Figure 4-18. S-Band Rf Head, Wiring Diagram.
Figure 4-19. Counter Assembly 79230563, Exploded View.
Disassembly and Assembly of C- and X-Band Rf Head
Figure 4-20. C- AND X-BAND Rf HEAD, Exploded View.
Replacement of C-Band BWO Tube 7923109.
Figure 4-21. C-Band Rf Head, Wiring Diagram.
Figure 4-22. X-Band Rf Head, Wiring Diagram
Replacement of X-Band BWO Tube 792110.
Figure 4-23. Connector Bracket Assemblies, C- and X-Band Rf Head, Exploded View.
Figure 4-24. Counter Assembly 7923056-4 (C-Band) and 7923056-5 (X-Band), Exploded View.
Figure 4-25. U-Band Rf Head, Exploded View.
Figure 4-25. U-Band Rf Head, Exploded View - continued
Figure 4-26. U-Band RI Head, Wiring Diagram
Disassembly and Assembly of U-Band Rf Head
Figure 4-27. Counter Assembly 7923056-6, Exploded View.
Replacement of BWO Tube 79$l111.
Figure 4-28. K Band Rf Head 7923025, Exploded view.
Figure 4-28. View-Continued
Disassembly and Assembly of K-Band Rf Head
Figure 4-29. K-Band RI Head, Wiring Diagram.
Figure 4-30. Counter Assembly 7923056-7, Exploded View.
Disassembly and Assembly of the Counter Assembly - TM-9-4931-294-15-20164
Figure 4-31. A-Band Rf Head, Exploded View.
Figure 4-31. A-Band Rf Head, Exploded View - continued
Figure 4-32. A-Band RI Held, Wiring Diagram.
Figure 4-33. Counter Assembly 7923056-8, Exploded View.
Section V. REMOVAL AND INSTALLATION OF A COMBINATION CASE DRAWER AND DISASSEMBLY AND ASSEMBLY OF COMBINATION CASE
Figure 4-34. Removal and Installation of a Typical Drawer.
Figure 4-35. Combination Case, Exploded View
Section VI. ALIGNMENT PROCEDURES FOR RF PLUG-IN SIGNAL SOURCES
Section VII. SEALING, FINISHING AND PAINTING
Chapter 5. FINAL INSPECTION
Chapter 6. SHIPMENT, STORAGE, AND DESTRUCTION OF MATERIAL TO PREVENT ENEMY USE
Shipping Instructions
Destruction of the Test Set
Method No. 4-By Gunfire
TM-9-4931-294-15-2 Microwave Calibration Test Set AN/USM234 (Theory of Operation Troubleshooting Repair and Overhaul) Manual
