Amplifier Research 200T4G18, Operating And Service Manual

Page: 9 / 60

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 ...............................................................................6
3. OPERATION..............................................................................................................7
3.1 Warnings and Cautions ..............................................................................................7
3.2 Installation..................................................................................................................8
3.2.1 Unpacking ...............................................................................................................8
3.2.2 Mounting.................................................................................................................8
3.2.3 Cooling Requirements.............................................................................................9
3.2.4 AC Line Power Connections.................................................................................10
3.2.5 RF Output Connections.........................................................................................10
3.2.6 External Interlock 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 Wiring Diagrams......................................................................................................33
5.4 Parts Lists.................................................................................................................35
5.4.1 Parts List, HPA Logic and Control Module, A16485-000....................................36
5.4.2 Parts List, Power Supply (Short) For TWT 5172, A23720-099 ...........................38
5.4.3 Parts List, Emergency Bypass Board, A24830-001..............................................39
5.4.4 Parts List, Emergency Bypass Board, A24830-002..............................................40
5.4.5 Parts List, HPA Interface Board (Plastic), A25444-000 .......................................41
i
http://www.Datasheet4U.com