Home
Icom
Transceiver
IC-F221
Icom IC-F221 Service Manual
38 pages
Manual
Specs
Ask a question
To Next Page
To Next Page
Loading...
UHF TRANSCEIVER
iF210
iF211
iF221
SER
VICE
MANU
AL
2
Table of Contents
Default Chapter
2
Repair Notes
2
Explicit Definitions
3
Table of Contents
3
Specifications
4
Inside View
5
Section 11 Voltage Diagrams
6
Section 10 Block Diagram
6
Disassembly Instructions
6
Front Unit
6
Section 3 Disassembly Instructions
7
Section 2 Inside View
7
Circuit Description
7
1St Mixer and 1St if Circuits (Main Unit)
7
2Nd if and Demodulator Circuits (Main Unit)
7
Receiver Circuits
7
RF Circuit (Main Unit)
7
AF Amplifier Circuit (Main Unit)
8
Modulation Circuit (Main and Front Units)
8
Receiver Mute Circuits (Main and Front Units)
8
Transmitter Circuits
8
APC Circuit (Main Unit)
9
PLL Circuits
9
Power Amplifier Circuit (Main Unit)
9
VCO Circuit (Main Unit)
9
Port Allocations
10
Power Supply Circuit
10
D/A Converter IC
11
LCD Driver
11
Output Expander
11
Adjustment Procedures
12
Adjustment Software Installation
12
Preparation
12
Starting Software Adjustment
12
System Requirements
12
Connections
13
Required Test Equipment
13
Screen Display Example
14
PLL Adjustment
15
Software Adjustment
16
Trimmer Adjustment
18
Section 9 Board Layouts
19
Section 8 Semi-Conductor Information
19
Parts List
19
Front Unit
19
Mechanical Parts and Disassembly
26
Exploded View
27
Semi-Conductor Information
28
Board Layouts
29
Block Diagram
33
Voltage Diagrams
34
Main Unit
35
Other manuals for Icom IC-F221
Instruction Manual
24 pages
Need help?
Do you have a question about the Icom IC-F221 and is the answer not in the manual?
Ask a question
Icom IC-F221 Specifications
General
Frequency Range
136-174 MHz
Power Output
25W
Dimensions
150(W) x 40(H) x 126.5(D) mm
Weight
1.5 kg
Mode
FM
RF Power Output
25W
Channel Spacing
12.5/25 kHz
Related product manuals
Icom IC-F24
32 pages
Icom IC-F25
32 pages
Icom IC-F210
38 pages
Icom IC-F211
24 pages
Icom IC-F24/S
48 pages
Icom IC-F210S
20 pages
Icom IC-F2000
46 pages
Icom IC-F2721
36 pages
Icom IC-F25SR
48 pages
Icom IC-F2000S
26 pages
Icom IC-F2000 series
26 pages