Icom IC-F1010 - Service Manual

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lcom
Inc.
VHF PRIVATE MOBILE RADIO
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VHF LAND MOBILE RADIO

Icom IC-F1010 Specifications

General

Frequency Range	136-174 MHz
Number of Channels	128
Channel Spacing	12.5/25 kHz
Power Output	5W
Modulation	FM
Weight	300 g
Power Supply	DC 7.2V

Summary

Introduction to Icom Radios

Safety Warnings

Critical safety warnings regarding power supply, liquids, polarity, and RF signal limits.

Repair Guidelines

Essential guidelines for safe and effective transceiver repair.

Radio Specifications

General Specifications

Receiver Specifications

Receiver performance metrics including sensitivity, selectivity, and audio output.

Transmitter Specifications

Transmitter performance metrics like output power, deviation, and emissions.

Receiver Circuitry Explained

RF and First Mixer Circuits

Second IF and Demodulator Circuits

Audio Frequency (AF) Circuit

Transmitter Circuitry Explained

Modulation Circuit

Drive and Power Amplifier Circuits

Explains the RF signal amplification stages for transmission.

Automatic Power Control (APC) Circuit

Details the Automatic Power Control circuit for output power management.

Phase-Locked Loop and Power Supply

Phase-Locked Loop (PLL) Circuits

Explains the Phase-Locked Loop circuit for frequency stability.

Voltage-Controlled Oscillator (VCO) Circuit

Power Supply Circuits Overview

Adjustment Procedures

PLL Adjustment Procedures

Procedures for adjusting the PLL lock voltage and reference frequency.

Receiver Sensitivity and Squelch Adjustment

Procedures for adjusting receiver sensitivity and squelch threshold.

Transmitter Output Power Adjustment

Procedures for adjusting transmitter output power and frequency deviation.

Block Diagrams

Front Unit Block Diagram

Main Unit Block Diagram

CPU Block Diagram

Voltage Diagrams

Front Unit Voltage Distribution

Voltage distribution diagram for the front unit.

Main Unit Voltage Distribution

Voltage distribution diagram for the main unit.