Icom IC-F4261DT User Manual

SERVICE MANUAL
ADDENDUM
CONTENTS
REPLACEMENT PAGES . . . . . . . . . . . . . . . . . . . . . . 7-1 to 7-5
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
BOARD LAYOUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
VOLTAGE DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . 28
Otober 2012

Icom IC-F4261DT Specifications

General

Power Supply	7.2 V DC
Ingress Protection	IP54
IP Rating	IP54
Type	Transceiver
Power Output	5W
Channel Spacing	12.5/25 kHz
Operating Voltage	7.2 V DC (Nominal)
Battery Life	Approximately 10 hours
Voltage	7.2 V

Summary

Introduction and Safety Precautions

General Safety Warnings

Crucial safety warnings regarding power, liquids, RF signals, and adjustments.

Parts Ordering and Repair Guidelines

Specifications

General Specifications

Covers frequency range, channels, emission type, impedance, and operating conditions.

Transmitter Specifications

Details transmitter performance parameters like output power and deviation.

Receiver Specifications

Details receiver performance metrics including sensitivity, squelch, and intermodulation.

Adjustment Procedures

Preparation for Adjustments

Frequency Adjustments

Procedures for adjusting PLL lock voltage and reference frequency.

Transmitter Adjustments

Procedures for adjusting transmitter output power and modulation parameters.

Receive Adjustments

Procedures for adjusting receiver sensitivity, S-meter, and squelch.

Parts List

Main Unit Parts Lists

RF Unit Parts Lists

Front, VR, and Jack Unit Parts

Mechanical Parts and Version List