AR 10036484, Operating And Service Manual, Page: 16 / 58

Model 3000W1000B
ii
3.3 RF Amplifier Operation (500 Watt Power Amplifier Schematic, 10039099) ..... 31
3.3.1 A4 Two-Way Splitter ........................................................................................... 31
3.3.2 A5, A6 Four-Way Splitters .................................................................................. 31
3.3.3 A7-A14 Final Amplifiers (Schematic 10036697) ................................................ 31
3.3.4 Power Supplies, 500 Watt Power Amplifiers (PS1 and PS2) .............................. 32
3.4 Twelve-Way Combiner ........................................................................................ 32
3.5 A15 Two-Way Combiner/Dual Directional Coupler ........................................... 32
3.6 Control System ..................................................................................................... 33
3.6.1 A12 Display Assembly, 4.3”, LCD (Schematics 10029679, 10030013) ............. 33
3.6.2 A13 ALC Board (Schematic #10023927) ............................................................ 33
4. TROUBLESHOOTING AND REPAIR ........................................................... 35
4.1 General ................................................................................................................. 35
4.3 Fault Signal Interpretation and Diagnosis ............................................................ 35
4.3.1 General - Reading Faults ...................................................................................... 35
4.3.2 Power Supply Faults ............................................................................................ 36
4.3.3 Thermal Faults ..................................................................................................... 36
4.3.4 ALC Fault ............................................................................................................. 36
4.3.5 RF Module Faults ................................................................................................. 36
4.3.6 Fault Troubleshooting Guide ............................................................................... 37
4.4 Diagnosing and Replacing Amplifier Modules .................................................... 38
4.4.1 Locating Modules ................................................................................................. 38
Appendix A. Installing Software Upgrades ............................................................... 39
FIGURES
1-1 AC Line Cord Installation ...................................................................................... 3
2-1 Digital Control Panel (DCP) Features ................................................................. 10
2-2 Rear Panel Features .............................................................................................. 11
2-3 Touch Panel Display Menu Map.......................................................................... 13
4-1 500W Amp Module Locations (Front View) ....................................................... 38
4-2 Driver Amp Module Locations (Side View) ........................................................ 38
TABLES
2-1 RS-232 Port Settings ............................................................................................ 16
2-2 RS-232 (DCE) Port Pinout Diagram DB-9 Female ............................................. 16
2-3. Fiber-Optic Serial Port Settings ........................................................................... 17
2-4. Relationship between DCP Controls and Remote Communication ..................... 19