Specifications

Location........................................ E-1
BlockDiagramDescription......................... E-1
DetailedCircuitDescription ........................ E-2
Troubleshooting .................................. E-7
RemovalandReplacement ......................... E-9
Alignments...................................... E-9
Section F
RF Combiner Motherboards (A10-A19)
Introduction ..................................... F-1
Function........................................ F-1
Location........................................ F-1
Detailed Circuit Description - Main RF Combiner
Motherboard.................................... F-1
Detailed Circuit Description - Binary RF Combiner
Motherboard.................................... F-1
Troubleshooting .................................. F-2
RFCombinerMotherboardRemoval................. F-2
RFCombinerMotherboardReplacement.............. F-2
Section G
RF Amplifier Module
Introduction .....................................G-1
Function........................................G-1
Location........................................G-1
BlockDiagramDescription.........................G-2
DetailedCircuitDescription ........................G-2
Maintenance.....................................G-5
Troubleshooting RF Amp Modules...................G-6
Section H
Output Monitor/Output Sample
Introduction .....................................H-1
Function........................................H-1
OscilloscopeWaveformPlots.......................H-1
Location........................................H-1
BlockDiagramDescription.........................H-2
DetailedCircuitDescription ........................H-2
Troubleshooting the Output Monitor Board ............H-7
RemovalandReplacement .........................H-9
Alignment.......................................H-9
OutputSampleBoard.............................H-11
Introduction ....................................H-11
Location.......................................H-11
Function.......................................H-11
DetailedCircuitDescription .......................H-11
Troubleshooting .................................H-11
RemovalandReplacement ........................H-11
Alignments.....................................H-11
Section J
Analog Input Board
Introduction ..................................... J-1
Function........................................ J-1
Location........................................ J-1
OscilloscopeWaveformPlots....................... J-1
BlockDiagramDescription......................... J-1
DetailedCircuitDescription ........................ J-2
Troubleshooting .................................. J-6
RemovalandReplacement ......................... J-8
Alignments...................................... J-8
Section K
Analog To Digital Converter
Introduction..................................... K-1
Function........................................ K-1
Location........................................ K-1
BlockDiagramDescription........................ K-1
DetailedCircuitDescription........................ K-2
Troubleshooting ................................. K-4
RemovalandReplacement......................... K-6
Alignments..................................... K-6
Section L
Modulation Encoders (A25-A29)
Introduction......................................L-1
Function.........................................L-1
Location.........................................L-1
Big Step Modulation Encoders ......................L-1
Binary Modulation Encoder (A25) ..................L-14
Section M
Controller (A31)
Introduction..................................... M-1
Function........................................ M-1
Location........................................ M-1
BlockDiagramDescription........................ M-1
DetailedCircuitDescription........................ M-3
Troubleshooting ................................ M-23
RemovalandReplacement........................ M-25
Alignments.................................... M-25
LEDBoard.................................... M-25
SwitchBoard/MeterPanel........................ M-25
Section N
External Interface (A23)
Introduction..................................... N-1
Function........................................ N-1
Location........................................ N-1
DetailedCircuitDescription........................ N-1
Troubleshooting ................................. N-4
RemovalandReplacement......................... N-5
Alignments..................................... N-5
Section P
Transmitter Interface
Introduction......................................P-1
Function......................................... P-1
Location......................................... P-1
DetailedCircuitDescription......................... P-1
Troubleshooting Transmitter Interface................. P-3
RemovalandReplacement..........................P-4
Alignments...................................... P-4
Section Q
Frequency Control Board
Introduction..................................... Q-1
Function........................................ Q-1
Location........................................ Q-1
BlockDiagramDescription........................ Q-1
DetailedCircuitDescription........................ Q-1
Troubleshooting ................................. Q-5
Removal\Replacement............................ Q-6
Alignment...................................... Q-6
888-2339-002 iv
WARNING: Disconnect primary power prior to servicing.