TM-55-4920-412-13P Tool Set Company Size Set No. 2 Airmobile Manual



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Tm-55-4920-412-13p

Chapter 1 Introduction
Figure 1-1. Vertical Instrument Display System Bench Test Set
Chapter 2 Service Upon Receipt
Figure 2-1. Typical Packaging
Section Iii. Installation Instructions
Figure 2-2. Signal Data Converter Test Setup
Figure 2-3. Central Display Unit Test Setup
Figure 2-4. Pilot Display Unit Test Setup
Figure 2-5. Pilot Display Unit Alternate Test Setup
Chapter 3 Operating Instructions
Figure 3-1. Sensor Simulator Operator's Controls And Indicators
Figure 3-2. Unit Tester Operator's Controls And Indicators
Table 3-1. Operator's Controls (Cont)
Operator's Controls (Cont)
Operator's Controls (Cont)
Operator's Controls (Cont)
Operator's Controls (Cont)
Operator's Controls (Cont)
Operator's Controls (Cont)
Operator's Controls (Cont)
Chapter 4 Maintenance Instructions
Table 4-2. Troubleshooting
Section Iv. Maintenance
Table 4-3. Test Equipment
Figure 4-1. Power Supply - Equipment Setup
Table 4-5. Troubleshooting Lamp Test Circuit (Avim)
Figure 4-2. Signal Data Converter Connectors No 1 And No 2.
Table 4-6. Troubleshooting Power Supply Circuit (Avim)
Troubleshooting Power Supply Circuit (Avim) - Cont.
Figure 4-4. A1 Power Supply Board.
Figure 4-5. Simulator Power Supply Assembly A1, Block Diagram.
Table 4-7. Troubleshooting Power Supply Circuit (Avim)
Table 4-8. Troubleshooting Fuel Quantity No 1 Or No 2 (Avim)
Table 4-9. Troubleshooting Turbine Gas Temp No 1 Or No 2 (Avim)
Table 4-10. Troubleshooting Engine Oil Temp No 1 Or No 2 (Avim)
Table 4-11. Troubleshooting Xmsn Oil Temp (Avim)
Figure 4-6. Dc Simulator A4 Board.
Figure 4-7. Dc Input Simulator Assembly A4, Block Diagram (Sheet 1 Of 2)
Figure 4-7. Dc Input Simulator Assembly A4, Block Diagram (Sheet 2 Of 2)
Table 4-12. Troubleshooting Rotor Speed (Hz) (Avim)
Table 4-13. Troubleshooting Engine % Rpm No 1 Or No 2 (Avim)
Table 4-14. Troubleshooting Gas Gen Speed No 1 Or No 2 (Avim)
Figure 4-8. Frequency Simulator A3 Board
Figure 4-9. Frequency Input Simulator Assembly A3, Block Diagram (Sheet 1 Of 2).
Figure 4-9. Frequency Input Simulator Assembly A3, Block Diagram (Sheet 2 Of 2).
L Engine Oil Press No 1 And No 2.
Table 4-15. Troubleshooting Engine Oil Press No 1 Or No 2 (Avim)
Table 4-16. Troubleshooting Xmsn Oil Pressure (Avim)
Table 4-17. Troubleshooting Oil And Xmsn Pressure Voltage Checks (A2) Board (Avim)
Figure 4-10. Engine And Xmsn Oil Pressure - Equipment Setup
Figure 4-11. Oil Pressure Simulator A2 Board.
Figure 4-12. Oil Pressure Simulator Assembly A2, Block Diagram
Table 4-18. Simulator Wiring List
Simulator Wiring List (Continued)
Simulator Wiring List (Continued)
Simulator Wiring List (Continued)
Simulator Wiring List (Continued)
Simulator Wiring List (Continued)
Simulator Wiring List (Continued)
4-14. Unit Tester Circuits
Table 4-20. Troubleshooting Lamp Power Supply Board (A2) (Avim)
Table 4-21. Troubleshooting Logic P/S. Sdc Fail, P/S Cont., Pilots, And Copilots Switch Circuits
Figure 4-13. Logic Power Supply Assembly A3.
Figure 4-14. Regulator Board Assembly A4, Block Diagram.
Figure 4-15. Lamp Power Supply Assembly A2.
Figure 4-16. Oscillator Control Board Assembly A6.
Table 4-22. Central Display And Signal Data
Table 4-23. Troubleshooting Logic Power Supply (A3) (Avim).
Table 4-24. Troubleshooting Regulator Board (A4)
Table 4-25. Troubleshooting Rotor Overspeed,
G. Digital Set, Bcd (Thumb Wheel Switch) Circuit.
Figure 4-17. Display Control - Equipment Setup
Table 4-27. Troubleshooting Rotor Overspeed, Digital Set, Digits, Reset, Display Update And Analog Set Circuits
Table 4-28. Display Update (Unit Tester)
Table 4-29. Troubleshooting Warn Outputs, Failures-Test Freq-Proc, Clock Inhibit And P.S Control And Inter Cal Select Circuits.
Figure 4-18. Bcd Counter Boardassemblya5.
Table 4-30. Inter Cal Select (Unit Tester)
Table 4-31. Signal Data Converter Section
Table 4-32. Troubleshooting Oscillator Board (A6) Circuits
O. Processors Selection
Table 4-33. Troubleshooting Processors Selection-Analog Ab/Digital Ab, Wiring Verification Fail Warn Lamp, Test Freq, Ana-Dig (B C D Counter Board A5)
Figure 4-19. Digital Display Board Assembly A12.
Figure 4-20. Unit Tester -Pin Connections.
Table 4-34. Troubleshooting Analog Processor Board No. 1 (A9), Shift Reg Drive And Reset, Ana Proc No. 2
Table 4-35. Troubleshooting Analog Processor Board No. 2 (A10).
Table 4-36. Troubleshooting Digital Display Board (A12) Units, Tens, Hundreds, Thousands, Update, Inhibit Circuits.
Table 4-37. Troubleshooting Monitor Board 1 (A7) Display And Pulses To Monitor Board (A8) Circuits
Table 4-38. Troubleshooting Monitor Board No. 2 (As) Test Points, Shift Reg Monitor, Digital O/P, Mux Analog, Mux Digital, Digital Mux, And Analog Mux Circuits
Figure 4-22. Analog-Processor No. 1 Assembly A9.
Figure 4-24. Monitor Board No. 2 Assembly A8. (Sheet 1 Of 3)
Figure 4-24. Monitor Board No. 2 Assembly A8. (Sheet 2 Of 3)
Figure 4-24. Monitor Board No. 2assemblya8. (Sheet 3 Of 3)
Section Vi. Preparation For Shipment And Storage
Appendix A References
Appendix B Maintenance Allocation Chart
B-2. Use Of The Maintenance Allocation Chart
B-5. Maintenance Categories And Work ' Times
Section Ii. Maintenance Allocation Chart
Maintenance Allocation Chart (Continued)
Appendix C Repair Parts And Special Tools List
4. How To Locate Repair Parts.
Figure C-1. Vertical Instrument Display System Bench Test Set (Sheet 1 Of2)
Figure C-1. Vertical Instrument Display System Bench Test Set (Sheet 2 Of 2)
Description
Figure C-2. Bench Test Set
Description
Figure C-3. Case, Bench Test Set
Description
Figure C-4. Simulator (Sheet 1 Of 3)
Figure C-4. Simulator (Sheet 2 Of 3)
Figure C-4. Simulator (Sheet 3 Of 3)
Description
Description
Description
Figure C-5. Power Supply Card
Description
Figure C-6. Oil Pressure Simulator Card
Description
Figure C-7. Frequency Input Simulator Card (Sheet 1 Of 2)
Figure C-7. Frequency Input Simulator Card (Sheet 2 Of 2)
Description
Description
Figure C-8. Dc Input Simulator Card
Description
Figure C-9. Unit Tester (Sheet 1 Of 3)
Figure C-9. Unit Tester (Sheet 2 Of 3)
Figure C-9. Unit Tester (Sheet 3 Of 3)
Description
Description
Description
Figure C-10. Test Set Regulator Board
Description
Figure C-11. Test Set Bcd Counter Board
Description
Figure C-12. Test Set Oscillator Control Board
Description
Figure C-13. Test Set Analog Processor No. 1 (Sheet 1 Of 2) (Usable On Code A)
Description
Figure C-14. Test Set Analog Processor No. 2
Description
Figure C-15. Test Set Monitor No. 1 (Sheet 1 Of 2) (Usable On Code A)
Description
Figure C-16. Test Set Monitor No. 2 (Sheet 1 Of 2)
Figure C-16. Test Set Monitor No. 2 (Sheet 2 Of 2)
Description
Figure C-17. Test Set Junction Board
Description
Figure C-18. Test Set Digital Display Board
Description
Figure C-19. Lamp Test Board
Description
Figure C-20. Lamp Power Supply (Sheet 1 Of 2)
Figure C-20. Lamp Power Supply (Sheet 2 Of 2)
Description
Description

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