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IC-F5023
Icom IC-F5023 Service Manual
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2 - 2
• MAIN-A UNIT
(T
OP
VIEW)
IF IC
(IC1)
LPF
(Q39)
PLL IC
(IC4)
CPU5 LINE REGULA
T
OR
(IC10)
RIPPLE FIL
TER
(Q17)
VCO SWITCH
(Q15)
PO
WER SWITCH
(Q23)
+8 REGULA
T
OR
(IC9)
LOCK V
OLA
TGE
BUFFER
(Q18)
WIDE/NARRO
W
PHASE SHIFTER SWITCH
(Q5)
R8 REGULA
T
OR
(Q30)
PO
WER SWITCH
(Q24)
APC AMP
(IC2)
WIDE/NARRO
W
2ND IF FIL
TER SWITCH
(Q40)
1ST IF FIL
TER
(FI1)
6
8
Table of Contents
Default Chapter
2
Caution
2
Introduction
2
Ordering Parts
2
Unit Abbreviations
2
Table of Contents
3
Specifications
4
Inside Views
6
Front Unit
6
Main-A Unit
7
Disassembly Instruction
9
Optional Products Installation
10
Section 5Circuit Descripiton
11
Section 4 Optional Unit Installation
11
2Nd if and Demodulator Circuits
11
Circuit Description
11
Receiver Circuits
11
Rf Circuits
11
Af Circuits
12
Rx Af Circuits
12
Signaling (Decoding)
12
MIC Amplifier (Front Unit)
13
Transmitter Circuits
13
Tx Af Circuits
13
Tx Amplifiers
13
Frequency Synthesizer Circuits
14
Pll
14
Voltage Diagram
14
Cpu
15
D/A Converter
15
Expander
15
Port Allocations
15
Jig Cable
16
Preparation
16
Required Equipments
16
Section 6 Adjustment Procedure
16
Adjustment Frequencies
17
Adjustment Utility Window
18
Connection
18
Frequency Adjustment
19
I/O Check Window
19
Transmit Adjustment
20
Receive Adjustment
21
Parts List
22
Front Unit
26
Mechanical Parts
28
Chassis Parts
28
Accessories
28
Board Layouts
30
General Wiring
32
Block Diagram
33
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Icom IC-F5023 Specifications
General
Brand
Icom
Model
IC-F5023
Category
Transceiver
Language
English
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