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Icom Manuals
Transceiver
IC-475H
Service manual
Icom IC-475H Service Manual
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Service manual
(123 pages)
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Table Of Contents
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Contents
Table of Contents
Bookmarks
Table of Contents
Assistance
Ordering Replacement Parts
Table of Contents
Specifications
General
Transmitter
Receiver
Outside Views
Front Panel
Frequency Display
Rear Panel
PLL and LOGIC UNITS
Main and RF YGR Units
PA and REG Units
Filter, Ctrl and PA Units
Block Diagrams
Circuit Description
Receiver Circuits
Antenna-Mixer Circuit
Noise Blanker Circuit - Notch Filter, FM Detector
3Rd Mixer Circuit
FM Squelch, FM S-Meter and Center Meter Circuits
Transmitter Circuits
CW Mode
FM, SSB Mode
TX AMP-Drive AMP
Driver, PA-Antenna
Standby Control Circuit
PLL Circuits
Reference Oscillator Circuit
Main Loop
Sub Loop
Direct Digital Synthesizer Unit
PLL Data
How to Derive N-Data
Logic Circuits
Cpu
Reset Circuit
Matrix
MIC Mute
ICOM Standard Address Number
Sensor Circuit
RIT Up/Down Sensor Circuit
Switching Regulator Circuit
Mechanical Parts and Disassembly
Rear Panel Disassembly
Front, Logic and PLL Units Connector Assembly
Front, Main and RF YGR Units Connector Assembly
PA and REG Units Connector Assembly
Maintenance and Adjustment
Preparation before Servicing
PLL Adjustment
AC Power Supply
Frequency Counter
RF Voltmeter
Frequency Adjustment
Receiver Adjustment
Transmitter Adjustment
Tone Adjustment
Board Layouts
Front Units
Logic and Sensor Units
Logic Unit
PLL Unit
DDS Unit
Main Unit
RF YGR Unit
REG Unit
PA Unit
CTRL Unit
Filter Unit
Voltage Diagrams
Front Unit
REG and PA Units
Ctrl, PA and Filter Units
Parts List
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