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IC-F3GS
Icom IC-F3GS Service Manual
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3 - 2
3-2 OPTIONAL
UNIT INST
ALLA
TIONS
1
Remove the option cover
.
2
Remove the bottom protective paper of spoge.
3
Connect one of UT
-96, UT
-105, UT
-109, UT
-1
10, UT
-1
1
1, and UT
-108 optional unit J5.
4
Replace the option cover to the chassis-hole.
SPONGE
Parts name
: 1556 sponge
Order No.
: 8930013545
Option cover
Option unit
J5
6
8
Table of Contents
Default Chapter
2
Danger
2
Introduction
2
Ordering Parts
2
Repair Notes
2
Table of Contents
3
Specifications
4
Inside Views
5
Main Unit
5
3 Disassembly and Option Instructions
6
Removing the Chassis Panel
6
Removing the Main Unit
6
Optional Unit Installations
7
4 Circuit Description
8
Receiver Circuits
8
Antenna Switching Circuit
8
Rf Circuit
8
Af Circuit
9
Squelch Circuit
9
Transmitter Circuits
9
Apc Circuit
9
Pll Circuit
10
Power Supply Circuits
10
Voltage Line
10
Port Allocations
11
Cpu (Ic8)
11
Output Expander IC
11
5 Adjustment Procedures
12
Required Test Equipment
12
System Requirements
12
Adjustment Software Installation
12
Preparation
12
Adjustment Software's Screen Display Example
13
Jig Cable
13
Connection
14
DC Power Cable Connections
14
Software Adjustment
14
Pll Adjustment
14
Pll Adjustment
15
Software Adjustment
16
Parts List
18
Mechanical Parts and Disassembly
22
Chassis Parts
22
Semi-Conductor Information
24
Transistor and Fet’s
24
Diodes
24
Board Layouts
25
Top View
25
Bottom View
26
Bllock DIAGRAM
27
Voltage Diagram
28
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Icom IC-F3GS Specifications
General
Brand
Icom
Model
IC-F3GS
Category
Transceiver
Language
English
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