AR 10009284, Operating And Service Manual

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TABLE OF CONTENTS
TABLE OF CONTENTS .................................................................................................. i
1. DESCRIPTION AND SPECIFICATIONS ....................................................... 1
1.1 TWTA Description ................................................................................................ 1
1.2 Suggested Applications.......................................................................................... 1
1.3 Specifications......................................................................................................... 1
1.4 Accessories ............................................................................................................ 1
1.5 Test Data Sheet ...................................................................................................... 2
2. THEORY OF OPERATION .............................................................................. 5
2.1 Design of the Amplifier ......................................................................................... 5
2.2 Description of the RF Circuit................................................................................. 5
2.3 Description of the Power Supply (A22826-352) ................................................... 6
3. OPERATION ....................................................................................................... 7
3.1 Warnings and Cautions.......................................................................................... 7
3.2 Installation ............................................................................................................. 7
3.2.1 Unpacking.............................................................................................................. 7
3.2.2 Mounting................................................................................................................ 8
3.2.3 Cooling Requirements ........................................................................................... 9
3.2.4 AC Line Power Connection................................................................................... 9
3.2.5 RF Output Connection ........................................................................................... 9
3.2.6 External Interlock Connector............................................................................... 10
3.2.7 External IEEE-488 Connector ............................................................................. 10
3.2.8 RF Connector....................................................................................................... 10
3.3 Front Panel Features ............................................................................................ 11
3.4 Front Panel Display and Soft Keys...................................................................... 12
3.5 Rear Panel Features ............................................................................................. 16
3.6 Initial Turn On and Warm-up Procedure ............................................................. 16
3.7 Emergency Bypass Operation.............................................................................. 17
3.8 Remote IEEE-488 Operation ............................................................................... 18
3.9 TWTA General Considerations ........................................................................... 23
4. MAINTENANCE............................................................................................... 25
4.1 Safety Warning .................................................................................................... 25
4.2 Unauthorized Repairs .......................................................................................... 25
4.3 Preventive Maintenance....................................................................................... 25
4.4 Troubleshooting................................................................................................... 26
4.5 Non-Repairable Modules..................................................................................... 27
5. TECHNICAL DOCUMENTATION ............................................................... 29
5.1 Top Level Build Tree........................................................................................... 30
5.2 Schematics ........................................................................................................... 31
5.3 Parts Lists............................................................................................................. 33
5.3.1 Parts List, HPA Logic and Control Module, A16485-000 ................................. 34
5.3.2 Parts List, HV Power Supply for TWT 6193A4/D4, A22826-352..................... 36
5.3.3 Parts List, Emergency Bypass Board, A24830-001............................................ 37
5.3.4 Parts List, HPA Interface Board (Plastic), A25444-000...................................... 38
5.3.5 Parts List, HPA 40W 26.5-40GHZ (AR) A28050-352....................................... 41