ICOM IC-4E Amateur UHF Transceiver Manuals

Manuals and User Guides for ICOM IC-4E Amateur UHF Transceiver. We have 3 ICOM IC-4E Amateur UHF Transceiver manuals available for free PDF download: Service Manual, Instruction Manual, User Manual

Icom IC-4E Service Manual (64 pages)

430/440 MHz

Brand: Icom | Category: Transceiver | Size: 3 MB

Assistance
2
Ordering Replacement Parts
2
Table of Contents
3
Specifications
4
Outside and Inside Views
5
Top View
5
Frequency Display
5
Front and Side Views
6
Rear and Bottom Views
6
Front Side Views
7
Bottom Inside Views
7
Front Inside View
8
Illustrated Appearance
8
Unit Location
9
Rear Inside Views
10
RF Unit
10
Block Diagram
12
Circuit Description
13
Receiver Circuits
13
Antenna Switching Circuit
13
RF Circuit
13
Transmitter Circuits
14
S-Meter Circuit
14
PLL Circuits
14
Buffer Amplifier Circuit
14
Dual Modulus Prescaler
15
Reference Oscillator Circuit
15
Loop Filter
15
VCO Circuit
15
Logic Circuits
16
CPU Port Allocations
16
Initial Matrix
16
Key Matrix
16
Meter Comparator
17
Power Saver Circuit
17
Hardware Configuration of Key Matrix
17
Lamp Circuit
18
Power Supply Circuits
18
Reduced Voltage Detecting Circuit
18
Other Circuits
18
Mechanical Parts and Disassembly
19
Front Panel Disassembly
19
Speaker Disassembly
20
Rear Case Disassembly
20
Top Panel Disassembly
21
Tone Unit/Tone Call Unit Disassembly
21
Maintenance and Adjustment
22
Preparation before Servicing
22
PLL Adjustment
23
Unit Locations
24
Receiver Adjustment
25
Transmitter Adjustment
27
Subaudible Tone, DTMF and Tone Call Adjustment
29
Board Layouts
31
Interconnections
31
Main Unit
33
RF Unit, RF Coil Unit, if Unit
37
VCO Unit
40
Tone and Tone Call Units
42
Voltage Diagrams
46
Parts List
53
Schematic Diagram
59

ICOM IC-4E Instruction Manual (40 pages)

430 MHz FM Transceiver

Brand: ICOM | Category: Transceiver | Size: 3 MB

Icom IC-4E User Manual (40 pages)

430MHz Fm transceiver

Brand: Icom | Category: Transceiver | Size: 3 MB

ICOM Categories

Transceiver Receiver Repeater Radio Two-Way Radio

More ICOM Manuals

ICOM IC-4E Amateur UHF Transceiver Manuals

Icom IC-4E Service Manual (64 pages)

Table of Contents

ICOM IC-4E Instruction Manual (40 pages)

Icom IC-4E User Manual (40 pages)

Related Products

ICOM Categories