CHAPTER 1. INTRODUCTION - TM-11-5821-284-340006
Historical Revisions to Equipment
CHAPTER 2. FUNCTIONING OF EQUIPMENT
Section II. SCHEMATIC DIAGRAM ANALYSIS
Figure 2-1. Antenna AS-285/ARC, vhf/fm blade type, functional block diagram analysis.
Figure 2-2. Phase discriminator, simplified schematic diagram.
Figure 2-4. Operational amplifier, simplified schematic diagram.
Servo Rotation Logic Circuits Analysis
Figure 2-6. Sequential pulsing logic, simplified schematic diagram.
Servo Motor and Motor Control Logic Analysis
Transmit/Receive Circuit Analysis
Antenna Circuit Analysis (FO 6-2, 6-3)
Figure 2-9. Tran8mit/receive logic, homing logic, and manual override logic, simplified schematic diagram.
CHAPTER 3. DIRECT SUPPORT MAINTENANCE
General Precautions
Section IV. DIRECT SUPPORT TESTING PROCEDURES
Manual Cycle and Run Signal Test
Figure 3-1. Test connections, antenna vswr test.
CHAPTER 4. GENERAL SUPPORT MAINTENANCE
Troubleshooting Chart
Troubleshooting Chart-continued - TM-11-5821-284-340026
Troubleshooting Chart-continued - TM-11-5821-284-340027
Troubleshooting Chart-continued - TM-11-5821-284-340028
Section II. General Support Repair and Replacement
Assembly of Coupler Assembly
Replacement of Capacitor A3C1.
Figure 4-1. Gear train assembly A3, exploded view.
CHAPTER 5. PERFORMANCE STANDARDS
Servo Loop Test
Servo Gain Test
Homing Circuit Test
Pulsing Circuit Test
Test Connections and Conditions
Manual Override Circuit Test
Figure 5-5. Test connections, sequencing circuit test.
Figure 5-6 1. 437S-1/1A/1C coupler assembly test points (sheet 1 of 2).
Figure 5-7. 437S-1/1A/1C coupler connection J2 test points.
Figure 5-8. Servoamplifier circuit board A1 test points.
Figure 5-9. A1A1 through A1A6 flat pack test points.
CHAPTER 6. FINAL ILLUSTRATIONS
APPENDIX A. REFERENCES - TM-11-5821-284-340046
FO 6-1. Color code marking for MIL-STD resistors, inductors, and capacitors.
FO 6-2. 1. AS-2285/ARC and AS-2285A/ARC vhf/fm blade antenna (models 437S-1, -1A, -1C), schematic diagram.
FO 6-2 . AS-2285/ARC and AS-2285A/ARC vhf/fm blade antenna (models 437S-1, -1B,), schematic diagram.
FO 6-3. 1. AS-2285/ARC vhf/fm blade antenna (models 437S-1B), schematic diagram.
FO 6-3. 2. AS-2285/ARC vhf/fm blade antenna (models 437S-1B), schematic diagram.
FO 6-4. AS-2285/ARC and AS-2285A/ARC vhf/fm blade antenna, waveforms.
FO 6-5. Radome and coupler assembly, exploded view.
FO 6-6. Coupler assembly A1, exploded view.
TM-11-5821-284-34 Blade Antenna AS-2285/ARC (NSN 5821-00-054-6374) and AS-2285/ARC (NSN 5821-01-003-0632) Manual
Historical Revisions to Equipment
CHAPTER 2. FUNCTIONING OF EQUIPMENT
Section II. SCHEMATIC DIAGRAM ANALYSIS
Figure 2-1. Antenna AS-285/ARC, vhf/fm blade type, functional block diagram analysis.
Figure 2-2. Phase discriminator, simplified schematic diagram.
Figure 2-4. Operational amplifier, simplified schematic diagram.
Servo Rotation Logic Circuits Analysis
Figure 2-6. Sequential pulsing logic, simplified schematic diagram.
Servo Motor and Motor Control Logic Analysis
Transmit/Receive Circuit Analysis
Antenna Circuit Analysis (FO 6-2, 6-3)
Figure 2-9. Tran8mit/receive logic, homing logic, and manual override logic, simplified schematic diagram.
CHAPTER 3. DIRECT SUPPORT MAINTENANCE
General Precautions
Section IV. DIRECT SUPPORT TESTING PROCEDURES
Manual Cycle and Run Signal Test
Figure 3-1. Test connections, antenna vswr test.
CHAPTER 4. GENERAL SUPPORT MAINTENANCE
Troubleshooting Chart
Troubleshooting Chart-continued - TM-11-5821-284-340026
Troubleshooting Chart-continued - TM-11-5821-284-340027
Troubleshooting Chart-continued - TM-11-5821-284-340028
Section II. General Support Repair and Replacement
Assembly of Coupler Assembly
Replacement of Capacitor A3C1.
Figure 4-1. Gear train assembly A3, exploded view.
CHAPTER 5. PERFORMANCE STANDARDS
Servo Loop Test
Servo Gain Test
Homing Circuit Test
Pulsing Circuit Test
Test Connections and Conditions
Manual Override Circuit Test
Figure 5-5. Test connections, sequencing circuit test.
Figure 5-6 1. 437S-1/1A/1C coupler assembly test points (sheet 1 of 2).
Figure 5-7. 437S-1/1A/1C coupler connection J2 test points.
Figure 5-8. Servoamplifier circuit board A1 test points.
Figure 5-9. A1A1 through A1A6 flat pack test points.
CHAPTER 6. FINAL ILLUSTRATIONS
APPENDIX A. REFERENCES - TM-11-5821-284-340046
FO 6-1. Color code marking for MIL-STD resistors, inductors, and capacitors.
FO 6-2. 1. AS-2285/ARC and AS-2285A/ARC vhf/fm blade antenna (models 437S-1, -1A, -1C), schematic diagram.
FO 6-2 . AS-2285/ARC and AS-2285A/ARC vhf/fm blade antenna (models 437S-1, -1B,), schematic diagram.
FO 6-3. 1. AS-2285/ARC vhf/fm blade antenna (models 437S-1B), schematic diagram.
FO 6-3. 2. AS-2285/ARC vhf/fm blade antenna (models 437S-1B), schematic diagram.
FO 6-4. AS-2285/ARC and AS-2285A/ARC vhf/fm blade antenna, waveforms.
FO 6-5. Radome and coupler assembly, exploded view.
FO 6-6. Coupler assembly A1, exploded view.
TM-11-5821-284-34 Blade Antenna AS-2285/ARC (NSN 5821-00-054-6374) and AS-2285/ARC (NSN 5821-01-003-0632) Manual
