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Manuals
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Yaesu Manuals
Receiver
FRDX-400
Instruction manual
Yaesu FRDX-400 Instruction Manual
Communication receiver
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
General
Specifications
Block Diagram
Principles of Operation
RF and Mixer Circuit
Second if and Detector Circuit
Oscillator Circuits
Control Circuits
Audio and Power Supply Circuits
Installation
Operations
Control Functions
Single Sideband Reception
Slow
CW Reception
AM Reception
Transceive Operation with FL Series Transmitter
Maintenance and Alignment
Cabinet Removal
455 KC if Alignment
T-Notch Filter Alignment
Tunable if Alignment
VFO Dial Calibration
BFO Alignment
High Frequency Oscillator Alignment
RF Circuit Alignment
Troubleshooting
S-Meter Zero Adjustment
Tube and Dial Light out
Tubes Light but no Audio
Station Interconnections
Accessories
FM Detector Unit
Marker
6 Meter Convertor
Installation of Optional Accessories
Filters Installation
Alignment
Mode Switch
Bottom View
Installation of FIX Oscillator Unit
Installation of FM Unit
Installation of VHF Convertor Units
Voltage Measurement
Resistance Measurement
Schematic Diagram
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General
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Block Diagram
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Schematic Diagram
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