Chapter 1 INTRODUCTION - TM-55-4920-429-13_8
Figure 1-1. AFCS Line Test Set
1-7. Notes, Cautions and Warnings.
SECTION II EQUIPMENT DESCRIPTION AND DATA
SECTION III TECHNICAL PRINCIPLES OF OPERATION
1-14. Ac/Dc Amplifier
1-18. Threshold-Detector Circuit
1-20. Extensible-Link Servo-Control Circuit
1-21. Square-Wave Generator
Figure 1-2. Demodulation Circuit Waveforms
Figure 1-3. Comparison of Command, Feedback, and Demand Voltages
1-24. Digital Multimeter CCA A2.
1-25. Digital Display CCA A1
Figure 1-4. Digital Multimeter Display Schematic Diagram
a. A ground logic 0 at LT
Chapter 2 OPERATING INSTRUCTIONS - TM-55-4920-429-13_24
Figure 2-1. Typical Packaging of Test Set
SECTION II OPERATION 2-2. DESCRIPTION AND FUNCTION OF OPERATORS CONTROLS AND INDICATORS.
Table 2-1. Test Set Controls and Indicators
Test Set Controls and Indicators Continued - TM-55-4920-429-13_28
Test Set Controls and Indicators Continued - TM-55-4920-429-13_29
Test Set Controls and Indicators Continued - TM-55-4920-429-13_30
Test Set Controls and Indicators Continued - TM-55-4920-429-13_31
Test Set Controls and Indicators Continued - TM-55-4920-429-13_32
Test Set Controls and Indicators Continued - TM-55-4920-429-13_33
2-3. Operational Start Up
Figure 2-3. Test Set Connections to Helicopter
Table 2-2. Test Set Initial Switch Positions
c. Shutdown Procedure
SECTION III PREVENTIVE MAINTENANCE CHECKS AND SERVICES
Procedures Check for and have repaired or adjusted as necessary
POWER ON CHECKS
CHAPTER 3 AVUM MAINTENANCE
Table 3-1. Consumable Materials (AVUM)
Figure 3-1. Cable W1 Wiring Diagram
Figure 3-2. Cable W2 Wiring Diagram
Figure 3-3. Cable W3 Wiring Diagram
SECTION II PREVENTIVE MAINTENANCE CHECKS AND SERVICES
Procedures Check for and have repaired or adjusted as necessary
Chapter 4 AVIM MAINTENANCE
SECTION II MAINTENANCE
Table 4-1. Consumable Materials (A VIM)
4-19. Circuit Card Replacement.
4-22. Assembly.
Figure 4-1. DC Power Supply and Analog Meter Adjustments
4-24. Analog Meter Zero Adjustment.
4-27. Test Equipment and Accessories Rewired.
4-29. Self Test and Power Supply Tests.
4-30. Multimeter Tests.
c. K-OHMS Range Test.
4-31. Discrete Signal Monitor Circuit Test.
SIGNAL SELECT 1 SWITCH POSITION
d. Test the circuits of SIGNAL SEL 2 switch
4-32. ILCA DRIVE
Figure 4-2. lLCA Drive Test Setup
h. Test the roll servo loop
i. Test the yaw servo loop
4-33. Gyro test.
Figure 4-3. Gyro Test Setup and Test Aid (sheet 1 of 2)
Figure 4-3. Gyro Test Setup and Test Aid (Sheet 2 of 2)
GYRO TEST SWITCHES
Figure 4-4. CPT Monitor Test Setup
4-35. Actuator Drive Test
b. Test feedback monitor circuits
4-36. AFCS ANN Circuit Test
Chapter 5 ILLUSTRATED PARTS BREAKDOWN
REFERENCE DESIGNATION INDEX (Continued)
5-3. Index of Part Numbers.
INDEX OF PART NUMBERS (Continued) - TM-55-4920-429-13_78
INDEX OF PART NUMBERS (Continued) - TM-55-4920-429-13_79
INDEX OF PART NUMBERS (Continued) - TM-55-4920-429-13_80
5-4. Detailed Parts List.
Vendor codes
Figure 5-1. AFCS Line Test Set Assembly
Description - TM-55-4920-429-13_85
Figure 5-2. Cable Assy
DESCRIPTION - TM-55-4920-429-13_87
Figure 5-3. Panel Assy (sheet 1 of 4)
DESCRIPTION - TM-55-4920-429-13_89
Figure 5-3. Panel Assy (sheet 2 of 4)
DESCRIPTION - TM-55-4920-429-13_91
Figure 5-3. Panel Assy (sheet 3 of 4)
DESCRIPTION - TM-55-4920-429-13_93
Figure 5-3. Panel Assy (sheet 4 of 4)
APPENDIX A REFERENCES - TM-55-4920-429-13_95
APPENDIX B MAINTENANCE ALLOCATION CHART
B-3. Definitions
B-4. Functional Groups
SECTION II MAINTENANCE ALLOCATION CHART
SECTION III TOOL AND TEST EQUIPMENT REQUIREMENTS FOR AFCS LINE TEST SET 145 G0009-1
ALPHABETICAL INDEX
ALPHABETICAL INDEX -cont
ALPHABETICAL INDEX -cont - TM-55-4920-429-13_103
ALPHABETICAL INDEX -cont - TM-55-4920-429-13_104
ALPHABETICAL INDEX -cont - TM-55-4920-429-13_105
ALPHABETICAL INDEX -cont - TM-55-4920-429-13_106
ALPHABETICAL INDEX -cont - TM-55-4920-429-13_107
FO-1. A FCS Line Test Set Block Diagram
FO-2. Discrete Signal Monitor Cirtuits Simplified Schematic Diagram
FO-3. Discrete Signal Monitor Detailed Schematic Diagram
Table 1-2. Summary of Programmed Normalizing Functions, Signal Levels, and Status Indicator Conditions
FO-5. Extensible Link Servo-Control Simplified Schematic Diagram
FO-6. Extensible Link Servo Loop Detailed Schematic Diagram
FO-7. Digital Multimeter Schematic Diagram
FO-8. AFCS Line Set Schematic Diagram (sheet 1 of 2)
FO-8. AFCS Line Test Set Schematic Diagram (Sheet 2 of 2)
4-3. Power Circuits and Power Indicator Troubleshooting a. CYCLIC TRIM 28 VDC
b. 115 VAC
c. 28 VDC
4. Self Test and Power Supply Troubleshooting a. Digital meter does not zero when METER SOURCE switch is set to OFF
c. Digital display does not read +10 K-ohms
TROUBLESHOOT WIRING
f. Multimeter digital display does not read +8.8.8.8. when SELF TEST switch is set to DISPLAY
j. 3.6 Vac voltage out of tolerance during voltage source test
k. 13 Vac voltage out of tolerance during voltage source test
l. 26 Vac voltage out of tolerance during voltage source test
m. -7 Vdc out of tolerance during voltage source test
q. +15 Vdc power supply of tolerance during self test
4-6. Discrete Signal Monitor Circuit Troubleshooting
FO-22. Wiring Diagram (sheet 1 of 5)
FO-22. Wiring Diagram (Sheet 2 of 5)
FO-22. Wiring Diagram (Sheet 3 of 5)
FO-22. Wiring Diagram (Sheet 4 of 5)
FO-22. Wiring Diagram (Sheet 5 of 5)
Figure 1-1. AFCS Line Test Set
1-7. Notes, Cautions and Warnings.
SECTION II EQUIPMENT DESCRIPTION AND DATA
SECTION III TECHNICAL PRINCIPLES OF OPERATION
1-14. Ac/Dc Amplifier
1-18. Threshold-Detector Circuit
1-20. Extensible-Link Servo-Control Circuit
1-21. Square-Wave Generator
Figure 1-2. Demodulation Circuit Waveforms
Figure 1-3. Comparison of Command, Feedback, and Demand Voltages
1-24. Digital Multimeter CCA A2.
1-25. Digital Display CCA A1
Figure 1-4. Digital Multimeter Display Schematic Diagram
a. A ground logic 0 at LT
Chapter 2 OPERATING INSTRUCTIONS - TM-55-4920-429-13_24
Figure 2-1. Typical Packaging of Test Set
SECTION II OPERATION 2-2. DESCRIPTION AND FUNCTION OF OPERATORS CONTROLS AND INDICATORS.
Table 2-1. Test Set Controls and Indicators
Test Set Controls and Indicators Continued - TM-55-4920-429-13_28
Test Set Controls and Indicators Continued - TM-55-4920-429-13_29
Test Set Controls and Indicators Continued - TM-55-4920-429-13_30
Test Set Controls and Indicators Continued - TM-55-4920-429-13_31
Test Set Controls and Indicators Continued - TM-55-4920-429-13_32
Test Set Controls and Indicators Continued - TM-55-4920-429-13_33
2-3. Operational Start Up
Figure 2-3. Test Set Connections to Helicopter
Table 2-2. Test Set Initial Switch Positions
c. Shutdown Procedure
SECTION III PREVENTIVE MAINTENANCE CHECKS AND SERVICES
Procedures Check for and have repaired or adjusted as necessary
POWER ON CHECKS
CHAPTER 3 AVUM MAINTENANCE
Table 3-1. Consumable Materials (AVUM)
Figure 3-1. Cable W1 Wiring Diagram
Figure 3-2. Cable W2 Wiring Diagram
Figure 3-3. Cable W3 Wiring Diagram
SECTION II PREVENTIVE MAINTENANCE CHECKS AND SERVICES
Procedures Check for and have repaired or adjusted as necessary
Chapter 4 AVIM MAINTENANCE
SECTION II MAINTENANCE
Table 4-1. Consumable Materials (A VIM)
4-19. Circuit Card Replacement.
4-22. Assembly.
Figure 4-1. DC Power Supply and Analog Meter Adjustments
4-24. Analog Meter Zero Adjustment.
4-27. Test Equipment and Accessories Rewired.
4-29. Self Test and Power Supply Tests.
4-30. Multimeter Tests.
c. K-OHMS Range Test.
4-31. Discrete Signal Monitor Circuit Test.
SIGNAL SELECT 1 SWITCH POSITION
d. Test the circuits of SIGNAL SEL 2 switch
4-32. ILCA DRIVE
Figure 4-2. lLCA Drive Test Setup
h. Test the roll servo loop
i. Test the yaw servo loop
4-33. Gyro test.
Figure 4-3. Gyro Test Setup and Test Aid (sheet 1 of 2)
Figure 4-3. Gyro Test Setup and Test Aid (Sheet 2 of 2)
GYRO TEST SWITCHES
Figure 4-4. CPT Monitor Test Setup
4-35. Actuator Drive Test
b. Test feedback monitor circuits
4-36. AFCS ANN Circuit Test
Chapter 5 ILLUSTRATED PARTS BREAKDOWN
REFERENCE DESIGNATION INDEX (Continued)
5-3. Index of Part Numbers.
INDEX OF PART NUMBERS (Continued) - TM-55-4920-429-13_78
INDEX OF PART NUMBERS (Continued) - TM-55-4920-429-13_79
INDEX OF PART NUMBERS (Continued) - TM-55-4920-429-13_80
5-4. Detailed Parts List.
Vendor codes
Figure 5-1. AFCS Line Test Set Assembly
Description - TM-55-4920-429-13_85
Figure 5-2. Cable Assy
DESCRIPTION - TM-55-4920-429-13_87
Figure 5-3. Panel Assy (sheet 1 of 4)
DESCRIPTION - TM-55-4920-429-13_89
Figure 5-3. Panel Assy (sheet 2 of 4)
DESCRIPTION - TM-55-4920-429-13_91
Figure 5-3. Panel Assy (sheet 3 of 4)
DESCRIPTION - TM-55-4920-429-13_93
Figure 5-3. Panel Assy (sheet 4 of 4)
APPENDIX A REFERENCES - TM-55-4920-429-13_95
APPENDIX B MAINTENANCE ALLOCATION CHART
B-3. Definitions
B-4. Functional Groups
SECTION II MAINTENANCE ALLOCATION CHART
SECTION III TOOL AND TEST EQUIPMENT REQUIREMENTS FOR AFCS LINE TEST SET 145 G0009-1
ALPHABETICAL INDEX
ALPHABETICAL INDEX -cont
ALPHABETICAL INDEX -cont - TM-55-4920-429-13_103
ALPHABETICAL INDEX -cont - TM-55-4920-429-13_104
ALPHABETICAL INDEX -cont - TM-55-4920-429-13_105
ALPHABETICAL INDEX -cont - TM-55-4920-429-13_106
ALPHABETICAL INDEX -cont - TM-55-4920-429-13_107
FO-1. A FCS Line Test Set Block Diagram
FO-2. Discrete Signal Monitor Cirtuits Simplified Schematic Diagram
FO-3. Discrete Signal Monitor Detailed Schematic Diagram
Table 1-2. Summary of Programmed Normalizing Functions, Signal Levels, and Status Indicator Conditions
FO-5. Extensible Link Servo-Control Simplified Schematic Diagram
FO-6. Extensible Link Servo Loop Detailed Schematic Diagram
FO-7. Digital Multimeter Schematic Diagram
FO-8. AFCS Line Set Schematic Diagram (sheet 1 of 2)
FO-8. AFCS Line Test Set Schematic Diagram (Sheet 2 of 2)
4-3. Power Circuits and Power Indicator Troubleshooting a. CYCLIC TRIM 28 VDC
b. 115 VAC
c. 28 VDC
4. Self Test and Power Supply Troubleshooting a. Digital meter does not zero when METER SOURCE switch is set to OFF
c. Digital display does not read +10 K-ohms
TROUBLESHOOT WIRING
f. Multimeter digital display does not read +8.8.8.8. when SELF TEST switch is set to DISPLAY
j. 3.6 Vac voltage out of tolerance during voltage source test
k. 13 Vac voltage out of tolerance during voltage source test
l. 26 Vac voltage out of tolerance during voltage source test
m. -7 Vdc out of tolerance during voltage source test
q. +15 Vdc power supply of tolerance during self test
4-6. Discrete Signal Monitor Circuit Troubleshooting
FO-22. Wiring Diagram (sheet 1 of 5)
FO-22. Wiring Diagram (Sheet 2 of 5)
FO-22. Wiring Diagram (Sheet 3 of 5)
FO-22. Wiring Diagram (Sheet 4 of 5)
FO-22. Wiring Diagram (Sheet 5 of 5)
