| Tittel: | Collins ALT-50 Radio Altimeter System, Collins ALT-50A Radio Altimeter Receiver-Transmitter (and) Collins 339H-4/4A Radio Altitude Indicator : instruction book (repair manual) | | Materialtype: | Manual/Sivil | | Signatur: | 20-A-2 | | Utgitt: | Cedar Rapids, Iowa : Rockwell International Corporation, 1988 | | Emneord: | Collins ALT-50 / Radio Altimeter System / Rockwell | | Materialbetegnelse: | Technical Handbook | | Materialbetegnelse: | Hefte | | Note: | Published August 31, 1976. Last Revision, Rev. Date January 15, 1988 | | Innhold: | TABLE OF CONTENTS:
Collins ALT-50 Radio Altimeter System (With ALT-50A for 2000-Foot Operation):
Section I - Description 523-0766819:
1.1 General
1.2 Purpose of Equipment
1.3 Equipment Supplied
1.4 Equipment Required But Not Supplied
1.5 Specifications
1.6 Physical Description
Section II - Installation 523-0766820:
2.1 General
2.2 Preinstallation Check
2.2.1 ALT-50A Radio Altimeter Receiver-Transmitter
2.2.2 339H-4/4A Radio Altitude Indicator
2.2.3 437X-1/1A/1B and ANT-50A/51A/52 Antennas
2.2.4 DRI-55 Digital Radio Altitude Indicator
2.3 Cabling
2.3.1 Aircraft Wiring Harness Except Antenna Cables
2.3.2 Antenna Cables
2.3.2.1 Aircraft Installation Delay (AID) Requirement
2.3.2.2 Antenna Cable Length
2.4 Installation and Removal Procedures
2.4.1 390R-19 Mounting Tray/UMT-12 Mount
2.4.1.1 Location
2.4.1.2 Installation
2.4.1.3 Removal
2.4.2 ALT-50A Radio Altimeter
2.4.2.1 Location
2.4.2.2 Installation
2.4.2.3 Removal
2.4.3 339H-4/4A Radio Altitude Indicator
2.4.3.1 Location
2.4.3.2 Installation
2.4.3.3 Removal
2.4.4 437X-1/1A/1B and ANT/50A/51A/52 Antennas
2.4.4.1 Location
2.4.4.2 Mounting
2.4.4.3 Installation
2.4.4.4 Removal
2.4.5 DRI-55 Digital Radio Altitude Indicator
2.4.5.1 Location
2.4.5.2 Installation
2.4.5.3 Removal
2.5 Postinstallation Check
Section III - Operation 523-0766821:
3.1 General
3.2 339H-4/4A Radio Altitude Indicators, Displays and Controls
3.2.1 Pointer and Dial Scale
3.2.2 Decision Height (DH) Index and DH Adjustment Knob
3.2.3 DH Indicator
3.2.4 Warning Flag
3.2.5 TEST Switch
3.3 DRI-55 Digital Radio Altitude Indicators, Displays and Controls
3.3.1 Radio Altitude Display
3.3.2 Decision Height (DH) Display and DH Knob
3.3.3 DH Annunciator
3.3.4 PUSH TEST Switch
3.4 Operating Procedures
3.4.1 Preflight Check
3.4.2 Flight Operation
3.4.3 Points to Remember
Section IV Theory 523-0766822:
4.1 General
4.2 Principles of Radio Altimeter Systems
4.3 Basic Principles of Operation by Function
4.3.1 ALT-50 Radio Altimeter System (With ALT-50A for 2000-Foot Operation),
Principles of Operation
4.4 Detailed Principles of Operation
4.4.1 ALT-50A Radio Altimeter Receiver-Transmitter
Section V Maintenance 523-0766823:
5.1 General
5.2 Special Test Equipment
5.2.1 ALT-50A/55B Test Fixture
5.2.2 Transmitter/Modulator Test Fixture
5.2.3 Transmitter Alignment Dust Cover Fixture
5.2.4 Special Test Cables
5.3 Replacement of Integrated Circuits
5.4 Disassembly/Assembly
5.4.1 ALT-50A Radio Altimeter Receiver-Transmitter, Disassembly
5.4.2 ALT-50A Radio Altimeter Receiver-Transmitter, Assembly
5.5 ALT-50A Radio Altimeter Receiver-Transmitter Repair
5.6 Testing, Troubleshooting, and Alignment Procedures
Section VI Diagrams 523-0766824: (Figure)
6-1 ALT-50A Radio Altimeter Receiver-Transmitter, Interconnect Wiring Diagram
6-2 Power Supply A6 and Power Supply Control Card A6A1, Component Location Dia
6-3 Power Supply A6 and Power Supply Control Card A6A1, Voltages and Waveforms
6-4 Power Supply A6 and Power Supply Control Card A6A1, Schematic Diagram
6-5 Modulator A3 and Modulator Control A4, Component Location Diagram
6-6 Modulator A3 and Modulator Control A4, Voltages and Waveforms
6-7 P/O Modulator A3 and Modulator Control A4, Schematic Diagram
6-8 Transmitter A5, Component Location Diagram
6-9 Mixer A7, Component Location Diagram
6-10 Delay Line A8, Component Location Diagram
6-11 P/O Modulator A3, Transmitter A5, Mixer A7, and Delay Line A8, Schematic Diag
6-12 Preamplifier/Filter A2, Component Location Diagram
6-13 Preamplifier/Filter A2, Voltages and Waveforms
6-14 Preamplifier/Filter A2, Schematic Diagram
6-15 Altitude Processor A1, Component Location Diagram
6-16 Altitude Processor A1, Voltages and Waveforms
6-17 Altitude Processor A1, Schematic Diagram
Section VII Bulletins 523-0766825:
Number 1, Unit ALT-50A Prevent Momentary Signal Loss at 800 Feet (Mar 15/77)
Number 2, Unit ALT-50A Improve Power Supply Operation (Sep 26/83)
Number 1-79, Unit ALT-50A Altitude Trip Notice Plate (Aug 1/79)
Number 1-79 R1 (Sep 30/79)
Section VIII Appendix 523-0775224:
Description
Integrated Circuit Description
Collins 339H-4/4A Radio Altitude Indicator
Description 523-0764965:
1. General
2. Purpose of Equipment
3. Specifications
4. Physical Description
5. Mechanical Description
6. Electrical Description
7. Principles of Operation
7.1 Functional Theory of Operation
7.2 Detailed Theory of Operation
7.2.1 Altitude Indication Circuit
7.2.2 Decision Height (DH) Circuit
7.2.3 Flag Circuit
7.2.4 Self-Test Circuit
8. Difference Data
8.1 General
8.2 339H-4 Radio Altitude Indicator
8.3 339H-4A Radio Altitude Indicator
Maintenance 523-07644891: (main issues)
1. General
2. Preventive Maintenance
3. Test Equipment, Tools, and Power Supply Requirements
4. Testing
5. Troubleshooting
6. Disassembly/Assembly
7.Repair
8. Alignment/Adjustment
9. Difference Data
Diagrams 523-07644964: (Figure)
1. 339H-4/4A Radio Altitude Indicator, Schematic Diagram
Parts List 523-07644946: (Figure)
1. 339H-4/4A Radio Altitude Indicator, Exploded View
2. Circuit Card Assembly A1 (CPN 618-3690-001, -002), Component Location D.
3. Circuit Card Assembly A1 (CPN 618-3690-005, -007), Component Location D.
4. Circuit Card Assembly A2 (CPN 618-3691-001), Component Location Diagram
Bulletins 523-0775347:
1. 339H-4/4A Convert From 28-Volt to 5-Volt Lightning (Apr 1/73)
1R1 (Sep 1/73)
1R2 (Dec 1/73)
2. 339H-4/4A Preventing False Altitude Trip Indications Above 2500 F. (Mar 15/74)
2R1 (Sep 30/74)
3. 339H-4 Prevent Brush Noise in Servo Motor (jun 13/75)
3. 339H-4A Protect From Internal RFI (Sep 9/74)
4. 339H-4 Prevent Servo-Amplifier Oscillation (Jun 30/75)
4R1 (Jan 5/76)
4. 339H-4A Prevent Brush Noise in Servo Motor (jun 13/75)
5. 339H-4 Prevent Gear Wear by Adding New ALT Clamp Circuit (Mar 1/78)
5R1 (Apr 30/80)
5R2 (Apr 22/85)
5. 339H-4A Prevent Servo-Amplifier Oscillation (Jun 30/75)
6. 339H-4 Protect From External RFI (Aug 15/78)
6. 339H-4A Prevent Gear Wear by Adding New ALT Clamp Circuit (Nov 15/78)
6R1 (Jun 15/79)
Appendix 523-0775278:
Description
Integrated Circuit Description | | Eier: | Norsk Luftfartsmuseum | | |
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