AR 10047590, Operating And Service Manual

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TABLE OF CONTENTS
TABLE OF CONTENTS ................................................................................................... i
1. GENERAL INFORMATION .............................................................................. 1
1.1 General Description ................................................................................................ 1
1.2 Specifications ......................................................................................................... 1
1.3 Power Supplies ....................................................................................................... 1
1.4 Installation .............................................................................................................. 2
1.4.1 Location .................................................................................................................. 2
1.4.2 Power ...................................................................................................................... 2
2. OPERATING INSTRUCTIONS ........................................................................ 9
2.1 General ................................................................................................................... 9
2.2 Amplifier Front and Rear Panels ............................................................................ 9
2.2.1 Local Control Interface ........................................................................................ 10
2.3 Local Operation .................................................................................................... 11
2.3.1 Power-up Sequence .............................................................................................. 11
2.4 Remote Control Interface ..................................................................................... 12
2.4.1 GPIB (IEEE-488) Communication....................................................................... 12
2.4.2 RS-232 Communication ....................................................................................... 12
2.4.3 Fiber-Optic Serial Communication ...................................................................... 13
2.4.4 USB Communication ........................................................................................... 14
2.4.5 Ethernet Communication ...................................................................................... 14
2.4.6 Remote Commands .............................................................................................. 15
2.4.7 Interlocks .............................................................................................................. 23
3. THEORY OF OPERATION ............................................................................. 25
3.1 Introduction .......................................................................................................... 25
3.2 RF Amplifier Operation ....................................................................................... 25
3.2.1 A1 Variable Gain Amplifier (Schematics 10042929, 10044992) ........................ 25
3.2.2 A2 Driver, A6 and A7 Final S1G2z5 Quadrature-Coupled Amplifier (Schematics
10032938, 10033124) .......................................................................................... 25
3.2.4 A3 Two-Way Splitter ........................................................................................... 26
3.2.5 A10 Two-Way Combiner ..................................................................................... 26
3.3 Power Supplies (PS1, PS2) .................................................................................. 26
3.4 Control System ..................................................................................................... 27
3.4.1 A12 Display Assembly, 4.3”, LCD (Schematics 10029679, 10030013) ............. 27
3.4.2 A14 Interface Board (Schematic 10020073) ........................................................ 27
4. MAINTENANCE ............................................................................................... 29
4.1 General Maintenance Information ........................................................................ 29
4.2 Disassembly Procedure ........................................................................................ 29
4.3 Troubleshooting ................................................................................................... 30
4.3.1 General - Reading Faults ...................................................................................... 31
4.3.2 The Unit Cannot Be Operated Remotely .............................................................. 31
4.3.3 Thermal Fault (Schematics 10047173, 10033124) .............................................. 31
4.3.4 Interlock Fault (Schematic 10047173) ................................................................. 32
4.3.5 Amplifier Faults (Schematics 10047173, 10033124) ........................................... 32
4.3.6 Low or No Power Output (DC Tests) (Schematic 10047173) ............................. 32