Chapter 1. FUNCTIONING - TM-11-5826-225-350009
Operating Mode Control Signal Paths
Automatic Directional Finder Mode Signal Paths
Loop Operating Mode Signal Paths
Section Il. DETAILED FUNCTIONING OF RADIO RECEIVER R1391/ARN-83
Figure 1-2. Relative Phase and Magnitude of Loop Atenna Output Signal
Balanced Modulator
Figure 1-3. Balanced modulator waveforms.
Sense Antenna Input Network
Figure 1-4. Sense antenna and balanced modulator signal mixing network, schematic diagram.
Push-Pull RF Amplifier
Local Oscillator
Bfo, Detecter, and Limited,
Figure 1-6. Adio detector, limiter, and bfo, schematic diagram.
Figure 17. Audio amp[ifier, Schematic diagram,
110-Cps Variable Phase Signal and Synchronous Filter - TM-11-5826-225-350024
110-Cps Variable Phase Signal and Synchronous Filter - TM-11-5826-225-350025
Resover Servo Amplifier
110-cps Oscillatcor and Amplifier
Tuning Servoamplifiers
Voltage Regulator
Figure 1-11. Tuning Servoamplifiers, schematic diagram
Figure 1-12. Regulated dc power supply, schematic diagram
Figure 1-13. Inverter, Power, Static CV-2128/ARN -33, Schematic Diagram
Figure 1-15. Typical Inductance Compressor, Schematic Diagram
Figure 1-16. Direction Finder Set, AN/ARN-83, interconnecting cabling diagram
Antenna AS-1863/ARN83
Receiver Tuning
Manual Loop Control
Figure 1-17. Manual RF Gain control system, schematic diagram
Receiver Bfo Switching
Receiver Tuning Meter
Chapter 2. TROUBLESHOOTING - TM-11-5826-225-350041
Test Equipment Required
Section Il. TROUBLESHOOTING RADIO RECEIVER R1391/ARN83
Figure 2-1. Receiver, dust cover retaining screws location,
Figure 22. Receiver test setup.
Figure 2-3. reciever, right side view
Figure 2-4. Audio frequency amplifier assembly.
Figure 2-5. Bfo subassembly.
Figure 2-6. Power supply and servo compartment, right side view.
Figure 2-7. Power supply and servo compartment, rear view
Figure 2-8. Receiver, left side view with gear train cover and RF shield removed.
Figure 2-9. First RF amplifier subassembly.
Figure 2-9.1 First RF amplifier subassembly, front view (MCN 1084 and above).
Figure 2-10. Second RF amplifier and balanced modulator subassembly.
Figure 210.1 Second RF amplifier and balanced modulator subassembly (MCN 1084 and above).
Figure 2-11. Push-pull RF amplifier subassembly, front view.
Figure 2-11.1 Push-pull RF amplifier subassembly, front view (MCN 1084 and above).
Figure 2-12. Push-pull RF amplifier subassembly, side view.
Figure 2-12.1 Push-pull RF amplifier subassembly, side view (MCN 1084 and above).
Figure 2-18. Mixer assembly.
Figure 2-13.1 Mixer assembly, front view (MCN 1084 and above).
Figure 2-14. IF amplifier subassembly front view.
Figure 2-14.1. IF amplifier subassembly, front view (MCN 1084 and above)
Figure 2-15.1 IF amplifier subassembly, rear view (MCN 1084 and above).
Figure 2-16. Local oscillator subassembly.
Figure 2-16.1 Local oscillator asssmbly, rear view (MCN 1084 and above).
Receiver Troubleshooting Chart.
Receiver Troubleshooting Chart. - continued - TM-11-5826-225-350071
Receiver Troubleshooting Chart. - continued - TM-11-5826-225-350072
Signal Substitution
Radio frequency Tests.
Radio frequency Tests - continued
Stage-Gain Measurements
Gain of mixer at IF frequency.
Gain of Sense Antenna Input Circiut.
Gain of First RF Amplifier and Phase- Shift Network
Isolating Trouble Within Stages
Figure 2-17 Receiver transistor voltage diagram (part 1 of 2).
Figure 2-17 Receiver transistor voltage diagram (part 2 of 2).
Voltage Measurements
Typical System Troubles Caused by Defective Receiver
Figure 2-18. Receiver waveforms.
Receiver Waveforms
Figure 2-19. Control unit test setup.
Figure 220. Control unit, front view.
Figure 2-21. Control unit, top view.
Figure 2-22. Control unit, left side view.
Section IV. TROUBLESHOOTING MOUNTING MT3605/ARN-83 AND INVERTER, POWER, STATIC CV-2128/ARN-83
Figure 2-24. Mounting with inverter installed.
Figure 226. Inverter, end view.
Section V. TROUBLESHOOTING ANTENNA AS1863/ARN83
Figure 2-28. Loop antenna test setup
Chapter 3. REPAIRS AND ALIGNMENT - TM-11-5826-225-350096
Removal of Push-Pull RF Amplifier Sub-assembly
Disassembly of Gear Train Subassembly
Reassembly and Lubrication Of Receiver
Figure 3-1. Receiver, left side view, dust cover removed.
Figure 3-2. Receiver, right side view, dust cover removed.
Reassembly and Lubrication Of Receiver - continued - TM-11-5826-225-350102
Reassembly and Lubrication Of Receiver - continued - TM-11-5826-225-350103
Replacement of Gear Train Assembly.
Replacement of Mixer Subassembly.
Disassembly of Control Unit
Removal of Attenuator. (R301).
Removal of Dial Drum.
Replacement of Range Switch (S304).
Replacement of Gear Train.
Replacement of Dial Drum.
eplacement of Function Switch (S302).
Replacement of Rear Retaining Plate.
Section II. ALIGNMENT - TM-11-5826-225-350114
Figure 3-3. RF balance adjustment test setup.
Figure 36. Block diagram of adjustment and synchronization of tuning capacitor setup.
Local Oscillator Alignment
RF Alignment
RF Balance Adjustment
First RF Amplifier Alignment
11 O-Hz Oscillator Frequency Adjustment
90-Degree Phase Shift adjustment
Servo Balance Adjustment
Adjustment of Adf Hunt Control
Inverter Voltage Adjustment
Control Unit Alignment
Chapter 4. GENERAL SUPPORT AND DEPOT INSPECTION PROCEDURES
Direction finder Control C-6899/ARN-83 Physical Tests and Inspection
Figure 4-1. Control Unit Test
Control Unit Test - TM-11-5826-225-350132
Control Unit Test - continued - TM-11-5826-225-350133
Control Unit Test - continued - TM-11-5826-225-350134
Radio Receiver R-1301/ARN83 Physical Test and Inpections - TM-11-5826-225-350135
Radio Receiver R-1301/ARN83 Physical Test and Inpections - TM-11-5826-225-350137
Figure 5-1. Receiver Frequency Accuracy Test
Receiver Frequency Accuracy Test
Figure 5-2. Receiver Bandwiidth Test
Receiver Bandwiidth Test
Figure 5-3. Receiver Sensitity Test
Receiver Sensitity, Bearing Thershold, and Audio Output test - TM-11-5826-225-350143
Receiver Sensitity, Bearing Thershold, and Audio Output test - TM-11-5826-225-350144
Receiver Sensitity, Bearing Thershold, and Audio Output test - TM-11-5826-225-350145
Receiver Sensitity, Bearing Thershold, and Audio Output test - TM-11-5826-225-350146
Receiver Sensitity, Bearing Thershold, and Audio Output test - TM-11-5826-225-350147
Figure 4-5. Receiver Bearing Indicator Test
Receiver Bearing Indicator Test
Figure 4-6. Receiver Tuning and Switching Time test
Receiver Tuning and Switching Time test
Figure 4-7. Receiver Muting Test
Receiver Muting Test
Figure 4-8. Receiver Tuning Meter Test
Receiver Tuning Meter Test
Inverter
Figure 4-9. Inverter Test
Inverter Test
Figure 4-10. Loop antenna test.
Loop antenna test.
Summary of Test Data
Section II. DEPOT INSPECTION STANDARDS
Figure 4-11. Color code markings for MIL-STD resistors.
Chapter 5. ILLUSTRATIONS - TM-11-5826-225-350165
Color Code Marking for Military Standard Capacitrs
Figure 5-2. Direction Finder Set AN/ARN-83, overall functional block diagram
Schematic Diagram - TM-11-5826-225-350169
Figure 5-4. Phase-shift network, second RF amplifier, and balanced modulator, schematic diagram
Figure 5-5. Push-Pull RF Amplifier, schematic diagram,
Figure 5-6. mixer coupling networks, schematic diagram
Figure 5-7. Mixer and local oscillator, schematic diagram.
Figure 5-8. Third, fourth and fifth IF amplifiers, schematic diagram
Figure 5-9. Resolver servoamplifier, schematic diagram
Figure 5-10.1. Radio Receiver, Schematic diagram (Sheet 1 of 3)
Figure 5-10.1. Radio Receiver, Schematic diagram (Sheet 2 of 3)
Figure 5-10.1. Radio Receiver, Schematic diagram (Sheet 3 of 3)
Figure 5-10.2. Radio Receiver, Schematic diagram (Sheet 1 of 3)
Figure 5-10.2. Radio Receiver, Schematic diagram (Sheet 2 of 3)
Figure 5-10.2. Radio Receiver, Schematic diagram (Sheet 3 of 3)
Figure 5-10.3. Radio Receiver, Schematic diagram (Sheet 1 of 3)
Figure 5-10.3. Radio Receiver, Schematic diagram (Sheet 2 of 3)
Figure 5-10.3. Radio Receiver, Schematic diagram (Sheet 3 of 3)
Figure 5-10.4. Radio Receiver, Schematic diagram (Sheet 1 of 3)
Figure 5-10.4. Radio Receiver, Schematic diagram (Sheet 2 of 3)
Figure 5-10.4. Radio Receiver, Schematic diagram (Sheet 3 of 3)
Figure 5-11. Directional Finder Control C-6899/ARN-83, schematic diagram
Figure 5-12. Function and frequency range selection, schematic diagram
Figure 5-13. Receiver tuning, schematic diagram
Figure 5-14. Manual Loop Control, schematic diagram
Figure 5-15. Manual audio gain control, schematic diagram
Figure 5-16. Receiver, gear train subassembly, exploded view
Figure 5-17. Control unit exploded view
TM-11-5826-225-35 Direction Finder Set AN/ARN-83 Manual
Operating Mode Control Signal Paths
Automatic Directional Finder Mode Signal Paths
Loop Operating Mode Signal Paths
Section Il. DETAILED FUNCTIONING OF RADIO RECEIVER R1391/ARN-83
Figure 1-2. Relative Phase and Magnitude of Loop Atenna Output Signal
Balanced Modulator
Figure 1-3. Balanced modulator waveforms.
Sense Antenna Input Network
Figure 1-4. Sense antenna and balanced modulator signal mixing network, schematic diagram.
Push-Pull RF Amplifier
Local Oscillator
Bfo, Detecter, and Limited,
Figure 1-6. Adio detector, limiter, and bfo, schematic diagram.
Figure 17. Audio amp[ifier, Schematic diagram,
110-Cps Variable Phase Signal and Synchronous Filter - TM-11-5826-225-350024
110-Cps Variable Phase Signal and Synchronous Filter - TM-11-5826-225-350025
Resover Servo Amplifier
110-cps Oscillatcor and Amplifier
Tuning Servoamplifiers
Voltage Regulator
Figure 1-11. Tuning Servoamplifiers, schematic diagram
Figure 1-12. Regulated dc power supply, schematic diagram
Figure 1-13. Inverter, Power, Static CV-2128/ARN -33, Schematic Diagram
Figure 1-15. Typical Inductance Compressor, Schematic Diagram
Figure 1-16. Direction Finder Set, AN/ARN-83, interconnecting cabling diagram
Antenna AS-1863/ARN83
Receiver Tuning
Manual Loop Control
Figure 1-17. Manual RF Gain control system, schematic diagram
Receiver Bfo Switching
Receiver Tuning Meter
Chapter 2. TROUBLESHOOTING - TM-11-5826-225-350041
Test Equipment Required
Section Il. TROUBLESHOOTING RADIO RECEIVER R1391/ARN83
Figure 2-1. Receiver, dust cover retaining screws location,
Figure 22. Receiver test setup.
Figure 2-3. reciever, right side view
Figure 2-4. Audio frequency amplifier assembly.
Figure 2-5. Bfo subassembly.
Figure 2-6. Power supply and servo compartment, right side view.
Figure 2-7. Power supply and servo compartment, rear view
Figure 2-8. Receiver, left side view with gear train cover and RF shield removed.
Figure 2-9. First RF amplifier subassembly.
Figure 2-9.1 First RF amplifier subassembly, front view (MCN 1084 and above).
Figure 2-10. Second RF amplifier and balanced modulator subassembly.
Figure 210.1 Second RF amplifier and balanced modulator subassembly (MCN 1084 and above).
Figure 2-11. Push-pull RF amplifier subassembly, front view.
Figure 2-11.1 Push-pull RF amplifier subassembly, front view (MCN 1084 and above).
Figure 2-12. Push-pull RF amplifier subassembly, side view.
Figure 2-12.1 Push-pull RF amplifier subassembly, side view (MCN 1084 and above).
Figure 2-18. Mixer assembly.
Figure 2-13.1 Mixer assembly, front view (MCN 1084 and above).
Figure 2-14. IF amplifier subassembly front view.
Figure 2-14.1. IF amplifier subassembly, front view (MCN 1084 and above)
Figure 2-15.1 IF amplifier subassembly, rear view (MCN 1084 and above).
Figure 2-16. Local oscillator subassembly.
Figure 2-16.1 Local oscillator asssmbly, rear view (MCN 1084 and above).
Receiver Troubleshooting Chart.
Receiver Troubleshooting Chart. - continued - TM-11-5826-225-350071
Receiver Troubleshooting Chart. - continued - TM-11-5826-225-350072
Signal Substitution
Radio frequency Tests.
Radio frequency Tests - continued
Stage-Gain Measurements
Gain of mixer at IF frequency.
Gain of Sense Antenna Input Circiut.
Gain of First RF Amplifier and Phase- Shift Network
Isolating Trouble Within Stages
Figure 2-17 Receiver transistor voltage diagram (part 1 of 2).
Figure 2-17 Receiver transistor voltage diagram (part 2 of 2).
Voltage Measurements
Typical System Troubles Caused by Defective Receiver
Figure 2-18. Receiver waveforms.
Receiver Waveforms
Figure 2-19. Control unit test setup.
Figure 220. Control unit, front view.
Figure 2-21. Control unit, top view.
Figure 2-22. Control unit, left side view.
Section IV. TROUBLESHOOTING MOUNTING MT3605/ARN-83 AND INVERTER, POWER, STATIC CV-2128/ARN-83
Figure 2-24. Mounting with inverter installed.
Figure 226. Inverter, end view.
Section V. TROUBLESHOOTING ANTENNA AS1863/ARN83
Figure 2-28. Loop antenna test setup
Chapter 3. REPAIRS AND ALIGNMENT - TM-11-5826-225-350096
Removal of Push-Pull RF Amplifier Sub-assembly
Disassembly of Gear Train Subassembly
Reassembly and Lubrication Of Receiver
Figure 3-1. Receiver, left side view, dust cover removed.
Figure 3-2. Receiver, right side view, dust cover removed.
Reassembly and Lubrication Of Receiver - continued - TM-11-5826-225-350102
Reassembly and Lubrication Of Receiver - continued - TM-11-5826-225-350103
Replacement of Gear Train Assembly.
Replacement of Mixer Subassembly.
Disassembly of Control Unit
Removal of Attenuator. (R301).
Removal of Dial Drum.
Replacement of Range Switch (S304).
Replacement of Gear Train.
Replacement of Dial Drum.
eplacement of Function Switch (S302).
Replacement of Rear Retaining Plate.
Section II. ALIGNMENT - TM-11-5826-225-350114
Figure 3-3. RF balance adjustment test setup.
Figure 36. Block diagram of adjustment and synchronization of tuning capacitor setup.
Local Oscillator Alignment
RF Alignment
RF Balance Adjustment
First RF Amplifier Alignment
11 O-Hz Oscillator Frequency Adjustment
90-Degree Phase Shift adjustment
Servo Balance Adjustment
Adjustment of Adf Hunt Control
Inverter Voltage Adjustment
Control Unit Alignment
Chapter 4. GENERAL SUPPORT AND DEPOT INSPECTION PROCEDURES
Direction finder Control C-6899/ARN-83 Physical Tests and Inspection
Figure 4-1. Control Unit Test
Control Unit Test - TM-11-5826-225-350132
Control Unit Test - continued - TM-11-5826-225-350133
Control Unit Test - continued - TM-11-5826-225-350134
Radio Receiver R-1301/ARN83 Physical Test and Inpections - TM-11-5826-225-350135
Radio Receiver R-1301/ARN83 Physical Test and Inpections - TM-11-5826-225-350137
Figure 5-1. Receiver Frequency Accuracy Test
Receiver Frequency Accuracy Test
Figure 5-2. Receiver Bandwiidth Test
Receiver Bandwiidth Test
Figure 5-3. Receiver Sensitity Test
Receiver Sensitity, Bearing Thershold, and Audio Output test - TM-11-5826-225-350143
Receiver Sensitity, Bearing Thershold, and Audio Output test - TM-11-5826-225-350144
Receiver Sensitity, Bearing Thershold, and Audio Output test - TM-11-5826-225-350145
Receiver Sensitity, Bearing Thershold, and Audio Output test - TM-11-5826-225-350146
Receiver Sensitity, Bearing Thershold, and Audio Output test - TM-11-5826-225-350147
Figure 4-5. Receiver Bearing Indicator Test
Receiver Bearing Indicator Test
Figure 4-6. Receiver Tuning and Switching Time test
Receiver Tuning and Switching Time test
Figure 4-7. Receiver Muting Test
Receiver Muting Test
Figure 4-8. Receiver Tuning Meter Test
Receiver Tuning Meter Test
Inverter
Figure 4-9. Inverter Test
Inverter Test
Figure 4-10. Loop antenna test.
Loop antenna test.
Summary of Test Data
Section II. DEPOT INSPECTION STANDARDS
Figure 4-11. Color code markings for MIL-STD resistors.
Chapter 5. ILLUSTRATIONS - TM-11-5826-225-350165
Color Code Marking for Military Standard Capacitrs
Figure 5-2. Direction Finder Set AN/ARN-83, overall functional block diagram
Schematic Diagram - TM-11-5826-225-350169
Figure 5-4. Phase-shift network, second RF amplifier, and balanced modulator, schematic diagram
Figure 5-5. Push-Pull RF Amplifier, schematic diagram,
Figure 5-6. mixer coupling networks, schematic diagram
Figure 5-7. Mixer and local oscillator, schematic diagram.
Figure 5-8. Third, fourth and fifth IF amplifiers, schematic diagram
Figure 5-9. Resolver servoamplifier, schematic diagram
Figure 5-10.1. Radio Receiver, Schematic diagram (Sheet 1 of 3)
Figure 5-10.1. Radio Receiver, Schematic diagram (Sheet 2 of 3)
Figure 5-10.1. Radio Receiver, Schematic diagram (Sheet 3 of 3)
Figure 5-10.2. Radio Receiver, Schematic diagram (Sheet 1 of 3)
Figure 5-10.2. Radio Receiver, Schematic diagram (Sheet 2 of 3)
Figure 5-10.2. Radio Receiver, Schematic diagram (Sheet 3 of 3)
Figure 5-10.3. Radio Receiver, Schematic diagram (Sheet 1 of 3)
Figure 5-10.3. Radio Receiver, Schematic diagram (Sheet 2 of 3)
Figure 5-10.3. Radio Receiver, Schematic diagram (Sheet 3 of 3)
Figure 5-10.4. Radio Receiver, Schematic diagram (Sheet 1 of 3)
Figure 5-10.4. Radio Receiver, Schematic diagram (Sheet 2 of 3)
Figure 5-10.4. Radio Receiver, Schematic diagram (Sheet 3 of 3)
Figure 5-11. Directional Finder Control C-6899/ARN-83, schematic diagram
Figure 5-12. Function and frequency range selection, schematic diagram
Figure 5-13. Receiver tuning, schematic diagram
Figure 5-14. Manual Loop Control, schematic diagram
Figure 5-15. Manual audio gain control, schematic diagram
Figure 5-16. Receiver, gear train subassembly, exploded view
Figure 5-17. Control unit exploded view
TM-11-5826-225-35 Direction Finder Set AN/ARN-83 Manual
