User Manuals: ICOM IC-820H Amateur Transceiver

Manuals and User Guides for ICOM IC-820H Amateur Transceiver. We have 5 ICOM IC-820H Amateur Transceiver manuals available for free PDF download: Serivce Manual, Instruction Manual

Icom IC-820H Serivce Manual (108 pages)

VHF/UHF all mode transceiver

Brand: Icom | Category: Transceiver | Size: 48 MB

Safety Warnings
2
Repair Notes
2
Product View
2
Table of Contents
3
Specifications
4
Disassembly Instructions
5
Inside Views
6
Main Unit Inside Views
6
RF-A. RF-B and PA-B Units Exploded View
7
PA-A and PLL Units Exploded View
7
Receiver Circuits Description
8
VHF RF Circuit - RF-A Unit
8
UHF RF Circuit - RF-B Unit
8
10 Mhz if Circuit - Main Unit
8
Noise Blanker Circuit
9
Demodulator Circuit - Main Unit
9
Af Input Mode Selector Switch - Main Unit
9
AF Circuit - Main Unit
9
Transmitter Circuits
10
AGC Circuit - Main Unit
10
S-Meter Circuit - Main Unit
10
Microphone Amplifier Circuit/Cw Keying Circuit
10
Transmit if Amplifier - Main Unit
11
RF Circuit - RF-A and RF-B Units
11
ALC Circuit - PA-A, PA-B and Main Units
11
APC Circuit - PA-A/B Units
11
PLL Circuits - PLL Unit
12
UHF PLL Circuits
12
BFO PLL Circuits
12
VHF PLL Circuits
12
Port Allocations
13
Local Oscillator Circuit - Reference Oscillator
13
CPU - Display Unit
13
Data Expander IC - Main Unit
14
Adjustment Procedures
15
Preparation before Servicing
15
Required Test Equipment
15
Connections
15
PLL Adjustment
16
Frequency Adjustment
16
PLL Unit Diagram
17
Main Unit Diagram
17
Receiver Adjustment
18
RF-A and RF-B Units Diagram
19
RF-B Unit Diagram
23
Transmitter Adjustment
24
Parts List
28
Front Unit Parts
28
DISP Unit Parts
28
SW-A Unit Parts
30
SW-B Unit Parts
30
VR Unit Parts
31
RIT Unit Parts
31
Jack Unit Parts
31
PLL Unit Parts
31
Main Unit Parts
35
RF-A Unit
44
RF-B Unit
45
PA Unit
48
PA-A Unit
48
Mechanical Parts and Disassembly
50
Cabinet Parts
50
Exploded Diagrams
51
Chassis Parts List
55
Semi-Conductors Information
56
Transistors
56
Diodes
57
Board Layouts
58
Front Unit Pcbs
58
Jack Unit PCB
58
RIT Unit PCB/VR Unit PCB
58
SW-A Unit PCB
59
SW-B Unit PCB
59
Display Unit PCB
61
Display Unit PCB - Bottom View
64
Main Unit PCB - Top View
67
Main Unit PCB - Bottom View
71
PLL Unit PCB Top View
75
PA-A Unit PCB Top View
77
PA-B Unit PCB Top View
78
RF-A Unit PCB Top View
79
RF-B Unit PCB Top View
79
RF-A Unit PCB Bottom View
81
RF-B Unit PCB Bottom View
81
Voltage Diagrams
83
Block Diagrams
103

Icom IC-820H Instruction Manual (53 pages)

VHF/UHF ALL MODE TRANSCEIVER

Brand: Icom | Category: Transceiver | Size: 6 MB

Icom IC-820H Instruction Manual (56 pages)

VHF/UHF All mode transceiver

Brand: Icom | Category: Transceiver | Size: 6 MB

Icom IC-820H Instruction Manual (52 pages)

VHF/UHF all mode transceiver

Brand: Icom | Category: Transceiver | Size: 5 MB

ICOM IC-820H Instruction Manual (52 pages)

VHF/UHF All Mode Transceiver

Brand: ICOM | Category: Transceiver | Size: 5 MB

ICOM Categories

Transceiver Receiver Repeater Radio Two-Way Radio

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