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Icom IC-F3 Service Manual
52 pages
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6-9-16, Kamihigashi, Hirano-ku, Osaka 547-0002, Japan
A-5452MI-S-
1
©
1997 Icom Inc.
SERVICE
MANUAL
VHF FM TRANSCEIVERS
iC-f3
iC-f3s
UHF FM TRANSCEIVERS
iC-f4
iC-f4s
iC-
f3
iC-f3s
iC
-f4
iC-f4s
*IC-F3/F3S,F4/F4S cover(GB) 99.6.8 3:24 PM Page 1
2
Table of Contents
Default Chapter
3
Table of Contents
3
Specifications
4
IC-F3/S
5
Inside Views
5
IC-F4/S
6
Main Unit
6
Disassembly Instruction
7
Optional Unit Installations
8
Circuit Description
9
Receiver Circuits
9
Transmitter Circuits
10
Pll Circuit
11
Power Supply Circuits
11
Cpu Port Allocations
12
Adjustment Procedures
13
Preparation
13
PLL ADJUSTMENT for IC-F3/S
15
TRIMMER ADJUSTMENT for IC-F3/S
16
TRANSMITTER ADJUSTMENT for IC-F3/S
17
RECEIVER ADJUSTMENT for IC-F3/S
18
PLL ADJUSTMENT for IC-F4/S
19
TRIMMER ADJUSTMENT for IC-F4/S
20
TRANSMITTER ADJUSTMENT for IC-F4/S
21
RECEIVER ADJUSTMENT for IC-F4/S
22
Parts List
23
Cabinet Parts
34
Mechanical Parts and Disassembly
34
Board Layouts
37
IC-F3/S Main Unit
37
Vr Board
37
IC-F4/S Main Unit
39
Block Diagram
41
IC-F3/S
41
IC-F4/S
42
Voltage Diagram
43
IC-F3/S
43
IC-F4/S
47
Other manuals for Icom IC-F3
Instruction Manual
20 pages
User Guide
5 pages
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Icom IC-F3 Specifications
General
Frequency Range
136-174 MHz
Power Output
5W
Modulation
FM
Channel Spacing
12.5/25 kHz
Channel Capacity
16
Weight
350 g
Battery Life
Approx. 10 hours
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