ICOM IC-02AT Manuals

Manuals and User Guides for ICOM IC-02AT. We have 5 ICOM IC-02AT manuals available for free PDF download: Service Manual, Insrtuction Manual, Instruction Manual

Icom IC-02AT Service Manual (83 pages)

114MHz FM Transceiver

Brand: Icom | Category: Transceiver | Size: 1.93 MB

Table of Contents
2
Specifications
3
Version Table
4
Operating Controls
5
Top Panel
5
Front Panel
5
Rear Panel
5
Electret Condenser Microphone
6
Dynamic Microphone
6
Frequency Display
7
Key Pad
7
Tone Frequency for each Number
10
Circuit Description
11
Receiver Circuit
11
Antenna Switching Circuit
11
IF Amplifier Circuit
11
Transmitter Circuits
12
AF Circuits
12
Squelch Circuits
12
MIC Amplifier Circuits
12
PLL Circuits
13
APC and Power Set Circuits
13
Dual Modulus Pre-Scaler
14
Unlock Circuits
14
Power Supply Circuits
15
Loop Filter, VCO, Modulation Circuits
15
Internal/External Power Switching Circuit
15
Voltage Regulator Circuits
15
Comparator, Reduced Voltage Detection Circuits
16
Logic Circuits
16
Power Source Circuit for Computer
16
VOX Power Source Circuits
16
Other Circuits
19
Lamp Circuit
19
Beep Circuit
19
Transmit/Receive Switching Circuit
19
Tone Unit
20
Tone Call Unit
20
Block Diagram
21
Inside Views
22
IC-02At
22
IC-02E
22
Mechanical Parts and Disassembly
25
Disassembly of the Cases
25
Disassembly of the Top Panel
27
Speaker/Microphone Assembly
28
PTT Spring Assembly
28
How to Replace the Speaker/Microphone
28
How to Replace PTT Spring
28
Unit Bottom Assembly
29
Bottom View
29
Maintenance and Adjustment
30
Measuring Instruments Required for Adjustment
30
Preliminary Checks
31
Transmitter Output Checks
31
Receiver Checks
31
Preparation and Procedure before Servicing
32
How to Check
33
Receiver
33
Transmitter
34
Modulation
35
Pll
36
Basic Alignment Procedure
37
PLL Circuit
37
Lock Adjustment
37
Transmission
38
Reference Frequency Oscillator Adjustment
38
Power Adjustment
38
Modulation Adjustment
39
LO Output Adjustment
40
RF if DET Coil Adjustment
40
Others
41
Receiver Spurious Response
41
Receiver Audio Output
41
S-Meter
41
Board Layout
42
Main Unit
42
PLL Unit
43
Logic Unit
44
Diode Matrix
47
Voltage Charts
48
Transistors Voltage Chart
48
Main Unit Voltage Diagram
50
PLL Unit Voltage Diagram
52
Logic Unit Voltage Diagram
54
Tone Unit Voltage Diagram
56
Tone-Call Unit Voltage Diagram
57
Troubleshooting
58
No Power on
58
Lock Failure
59
No Reception
60
No Transmit RF Power
61
IC Specifications
62
Hd 44795(Mpu)
62
PD 2834C (PLL Frequency Synthesizer)
63
PD571C (Low Power Prescaler)
64
MC3357 (Low Power FM IF)
65
S-81250HG (C-Mos Voltage Regulator)
66
S-7116A Tone Generator C-Mos LSI
67
SC-1025 (VHF Power Amplifier Module)
69
TA75358P (Dual Driver)
69
TA75393P (Dual Comparator)
70
TC4069UBP (Hex Inverter)
70
TC4071BP (Quad 2-Input Positive or Gate)
71
TC4094BP (8-Stage Shift-And Store Busregister)
71
TC5082P (Oscillator and 12 Stage Divider)
72
Parts List
73
Schematic Diagram
78

Icom IC-02AT Service Manual (82 pages)

114MHz FM Transceiver

Brand: Icom | Category: Transceiver | Size: 10.65 MB

ICOM IC-02AT Insrtuction Manual (51 pages)

144MHz FM Transceiver

Brand: ICOM | Category: Transceiver | Size: 4.1 MB

Icom IC-02AT Instruction Manual (48 pages)

144MHz FM Transceiver

Brand: Icom | Category: Transceiver | Size: 4.04 MB

Icom IC-02AT Instruction Manual (48 pages)

144MHz FM Transceiver

Brand: Icom | Category: Transceiver | Size: 1.76 MB

ICOM Categories

Transceiver Receiver Repeater Radio Two-Way Radio

More ICOM Manuals

ICOM IC-02AT Manuals

Icom IC-02AT Service Manual (83 pages)

Table of Contents

Icom IC-02AT Service Manual (82 pages)

ICOM IC-02AT Insrtuction Manual (51 pages)

Icom IC-02AT Instruction Manual (48 pages)

Icom IC-02AT Instruction Manual (48 pages)

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