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IC-F410
Icom IC-F410 Service Manual
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SECTION 2
INSIDE VIEW
AF power amplifier
(IC9: LA4425)
PLL reference TCXO
(X2: CR-601)
I/O expander
(IC13: BU4094BCF)
AF switching IC
(IC11: BU4066BCF)
VCO circuit
2nd IF filter (FI2)
2nd IF filter (FI3)
*1st mixer (Q3: 3SK241)
1st IF filter (FI1)
FM IF IC
(IC1: TA31136FN)
Discriminator
(X1: CDBCA450CX24)
High-pass filter
(IC6: NJM2902M)
*Level controller
*
(IC12: M62363FP)
*Microphone amplifier
*
(IC8: NJM2904M)
*RF amplifier
*
(Q1: 3SK241)
Low-pass filter
Power module (IC5)
Note:
* Located under side of the point.
4
6
Table of Contents
Default Chapter
2
Introduction
2
Ordering Parts
2
Repair Notes
2
Explicit Definitions
3
Table of Contents
3
Specifications
4
Inside View
5
Section 2 Inside View
6
Disassembly Instructions
6
Opening Case
6
Instllation Location
6
Circuit Description
7
Receiver Circuits
7
Antenna Switching Circuit
7
Rf Circuit
7
Af Amplifier Circuit
8
Transmitter Circuit
8
Microphone Amplifier Circuit
8
Receiver Mute Circuits
8
Drive Amplifier Circuit
9
Pll Circuits
9
Power Amplifier Circuit
9
Apc Circuit
9
Power Supply Circuits
10
Voltage Lines
10
Port Allocations
10
Cpu
10
I/O Expander IC
11
Adjustment Procedures
12
Preparation
12
Required Test Equipment
12
Adjustment Frequency
12
Program Screen Example
13
Connections
13
Pll Adjustment
14
Trimmer Adjustment
15
Section 9 Board Layouts
17
Section 8 Semi-Conductor Information
17
Beep Adjustment
17
Front Unit (IC-F410/F420)
17
Parts List
18
Mechanical Parts
26
Semi-Conductor Information
28
Transistors and Fet's
28
Diodes
28
Board Layouts
29
Front Unit
29
Bottom View
30
Front Unit (IC-F410S/F420S)
31
Main Unit
33
Section 11 Voltage Diagram
35
Block Diagram
35
Front Unit
35
Main Unit
35
Voltage Diagram
36
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Icom IC-F410 Specifications
General
Brand
Icom
Model
IC-F410
Category
Transceiver
Language
English
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