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FRDX-400
Yaesu FRDX-400 Manuals
Manuals and User Guides for Yaesu FRDX-400. We have
1
Yaesu FRDX-400 manual available for free PDF download: Instruction Manual
Yaesu FRDX-400 Instruction Manual (30 pages)
Communication receiver
Brand:
Yaesu
| Category:
Receiver
| Size: 2.77 MB
Table of Contents
General
3
Specifications
3
Block Diagram
4
Principles of Operation
4
RF and Mixer Circuit
4
Second if and Detector Circuit
4
Oscillator Circuits
5
Control Circuits
6
Audio and Power Supply Circuits
6
Installation
7
Operations
8
Control Functions
8
Single Sideband Reception
8
Slow
9
CW Reception
9
AM Reception
9
Transceive Operation with FL Series Transmitter
10
Maintenance and Alignment
10
Cabinet Removal
10
455 KC if Alignment
11
T-Notch Filter Alignment
11
Tunable if Alignment
11
VFO Dial Calibration
11
BFO Alignment
12
High Frequency Oscillator Alignment
12
RF Circuit Alignment
12
Troubleshooting
13
S-Meter Zero Adjustment
13
Tube and Dial Light out
13
Tubes Light but no Audio
13
Station Interconnections
14
Accessories
15
FM Detector Unit
15
Marker
15
6 Meter Convertor
15
Installation of Optional Accessories
16
Filters Installation
16
Alignment
16
Mode Switch
17
Bottom View
17
Installation of FIX Oscillator Unit
17
Installation of FM Unit
18
Installation of VHF Convertor Units
19
Voltage Measurement
22
Resistance Measurement
22
Schematic Diagram
25
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