Icom IC-475H Manuals

Manuals and User Guides for Icom IC-475H. We have 3 Icom IC-475H manuals available for free PDF download: Service Manual, Instruction Manual

Icom IC-475H Service Manual (126 pages)

Brand: Icom | Category: Transceiver | Size: 29 MB

Assistance
2
Ordering Replacement Parts
2
Table of Contents
3
Specifications
5
General
5
Transmitter
5
Receiver
6
Outside Views
7
Front Panel
7
Frequency Display
9
Rear Panel
9
PLL and LOGIC UNITS
10
Main and RF YGR Units
10
PA and REG Units
11
Filter, Ctrl and PA Units
11
Block Diagrams
12
Circuit Description
15
Receiver Circuits
15
Antenna-Mixer Circuit
15
Noise Blanker Circuit - Notch Filter, FM Detector
16
3Rd Mixer Circuit
16
FM Squelch, FM S-Meter and Center Meter Circuits
17
Transmitter Circuits
17
CW Mode
17
FM, SSB Mode
18
TX AMP-Drive AMP
18
Driver, PA-Antenna
19
Standby Control Circuit
20
PLL Circuits
20
Reference Oscillator Circuit
21
Main Loop
21
Sub Loop
22
Direct Digital Synthesizer Unit
22
PLL Data
22
How to Derive N-Data
22
Logic Circuits
23
Cpu
23
Reset Circuit
24
Matrix
24
MIC Mute
26
ICOM Standard Address Number
26
Sensor Circuit
27
RIT Up/Down Sensor Circuit
27
Switching Regulator Circuit
28
Mechanical Parts and Disassembly
29
Rear Panel Disassembly
31
Front, Logic and PLL Units Connector Assembly
32
Front, Main and RF YGR Units Connector Assembly
33
PA and REG Units Connector Assembly
34
Maintenance and Adjustment
36
Preparation before Servicing
36
PLL Adjustment
37
AC Power Supply
37
Frequency Counter
37
RF Voltmeter
37
Frequency Adjustment
39
Receiver Adjustment
41
Transmitter Adjustment
47
Tone Adjustment
59
Board Layouts
61
Front Units
61
Logic and Sensor Units
66
Logic Unit
68
PLL Unit
71
DDS Unit
73
Main Unit
74
RF YGR Unit
79
REG Unit
83
PA Unit
85
CTRL Unit
87
Filter Unit
91
Voltage Diagrams
92
Front Unit
92
REG and PA Units
104
Ctrl, PA and Filter Units
105
Parts List
106

Icom IC-475H Service Manual (123 pages)

430MHz all mode transceiver

Brand: Icom | Category: Transceiver | Size: 24 MB

Icom IC-475H Instruction Manual (52 pages)

430Mhz All mode Transceivers

Brand: Icom | Category: Transceiver | Size: 4 MB

Icom Categories

Transceiver Receiver Repeater Radio Two-Way Radio

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