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Icom IC-F6061 - User Manual

Icom IC-F6061
37 pages
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S-14324XZ-C1
Feb. 2007
UHF TRANSCEVERS
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Icom IC-F6061 Specifications

General IconGeneral
IP RatingIP54
Operating Temperature Range-30°C to +60°C
Channel Capacity128 channels
Modulation16K0F3E, 11K0F3E
Power Supply13.8V DC ±15%

Summary

Service Manual Overview

Introduction and Cautions

Cautions and Warnings

Lists critical warnings and precautions for safe operation and equipment protection.

Repair Notes

Provides essential guidelines and precautions for performing repairs and disassembly.

Specifications

Disassembly Instructions

Removing the Front Panel

Step-by-step guide to safely remove the front panel from the transceiver.

Removing the Main Unit

Instructions for disassembling the main unit, including screw removal and desoldering.

Optional Units Installation

Circuit Descriptions - RF and IF Stages

RF Circuits

Explains the function of RF circuits, including antenna switching and amplification.

1 st IF Circuits

Details how received signals are converted, filtered, and amplified at the 1st IF stage.

2 nd IF and Demodulator Circuits

Describes the conversion, amplification, and FM demodulation of the 2nd IF signal.

Transmitter and Modulation Circuit Descriptions

Frequency Synthesizer Circuit Description

VCO

Explains Voltage Controlled Oscillators (VCOs) for receiving and transmitting frequencies.

PLL Circuits

Describes the Phase Locked Loop (PLL) circuit for stable frequency generation.

Power Supply Circuits

Power Supply Circuitry

Illustrates the distribution of voltage from the battery pack via switches and regulators.

Port Allocations

Adjustment Procedures - Preparation and Setup

Frequency Adjustment

PLL Lock Voltage Adjustment

Guides on setting PLL lock voltage for RX and TX.

Reference Frequency Setting

Procedure for connecting and setting the reference frequency.

Transmit Adjustment

Output Power Adjustment

Steps for adjusting transmit output power for various levels.

Modulation Balance and Deviation

Procedures for adjusting modulation balance and FM deviation.

Receive Adjustment

Receive Sensitivity Adjustment

Guides for adjusting receive sensitivity and S-meter levels.

Squelch Adjustment

Steps for adjusting the squelch level for proper audio output.

Block Diagram

Voltage Diagram - Front Unit

Voltage Diagram - Main Unit

Voltage Diagram - Main Unit and Connect Unit

HM-152 Microphone Components

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