INTRODUCTION

 

DANGER

This service manual describes the latest service information for the IC-910HVHF/UHF ALL MODE TRANSCEIVER at the time of publication.

VERSION No.

VERSION

SYMBOL

 

 

 

#02

Europe

EUR

 

 

 

#04

Australia

AUS

 

 

 

#06

U.S.A.

USA-1

#07

Korea

KOR

 

 

 

To upgrade quality, any electrical or mechanical parts and internal circuits are subject to change without notice or obligation.

NEVER connect the transceiver to an AC outlet or to a DC power supply that uses more than 16 V. This will ruin the transceiver.

DO NOT expose the transceiver to rain, snow or any liquids.

DO NOT reverse the polarities of the power supply when connecting the transceiver.

DO NOT apply an RF signal of more than 20 dBm (100 mW) to the antenna connector. This could damage the transceiv- er’s front end.

ORDERING PARTS

Be sure to include the following four points when ordering replacement parts:

1.10-digit order numbers

2.Component part number and name

3.Equipment model name and unit name

4.Quantity required

<SAMPLE ORDER>

1110003140

IC

LA1150N

IC-910H

MAIN UNIT

5 pieces

8810005770

Screw

BiH M38 ZK

IC-910H

Cover

10 pieces

Addresses are provided on the inside back cover for your convenience.

REPAIR NOTES

1.Make sure a problem is internal before disassembling the transceiver.

2.DO NOT open the transceiver until the transceiver is disconnected from its power source.

3.DO NOT force any of the variable components. Turn them slowly and smoothly.

4.DO NOT short any circuits or electronic parts. An insu- lated tuning tool MUST be used for all adjustments.

5.DO NOT keep power ON for a long time when the trans- ceiver is defective.

6.DO NOT transmit power into a signal generator or a sweep generator.

7.ALWAYS connect a 50 dB to 60 dB attenuator between the transceiver and a deviation meter or spectrum ana- lyzer when using such test equipment.

8.READ the instructions of test equipment thoroughly before connecting equipment to the transceiver.

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Icom IC-910H service manual Introduction, Ordering Parts, Repair Notes, Eur

IC-910H specifications

The Icom IC-910H is a highly regarded and versatile transceiver that is designed for amateur radio operators who are particularly interested in V/UHF and microwave communications. Known for its exceptional performance, the IC-910H encompasses a suite of features that make it a standout choice for both casual and dedicated hams.

One of the main features of the IC-910H is its dual-band capability, allowing for simultaneous operation on both 144 MHz (2 meters) and 430 MHz (70 centimeters) bands. This dual operation enables users to engage in various communication modes, including SSB, CW, FM, and digital. Its high frequency stability ensures that users can rely on the transceiver for accurate and consistent transmissions.

The IC-910H is equipped with a high-performance 10 MHz IF filter that improves selectivity and reduces adjacent channel interference. The optional 1.2 GHz module enhances the transceiver’s capabilities, allowing operators to venture into microwave frequencies. This expandability is a significant advantage for users who wish to progress in their amateur radio pursuits.

Another notable aspect of the IC-910H is its large, easy-to-read LCD display, which features various color options for enhanced visibility. The front panel layout is user-friendly, providing quick access to important controls and functions. The built-in DSP (Digital Signal Processing) technology offers noise reduction and filtering capabilities, significantly improving overall audio quality and making weak signals more intelligible.

The transceiver also includes extensive memory functions, with up to 1,000 memory channels available for storing frequencies, modes, and operational settings. Additionally, it supports CTCSS and DCS tones, which facilitate the use of repeater systems and private group communications.

In terms of build quality, the IC-910H features a robust construction designed for durability and long-term use. Its efficient power supply management ensures excellent performance while minimizing heat generation, making it suitable for extended operating sessions.

Overall, the Icom IC-910H is a powerful and feature-rich transceiver that is favored by many amateur radio enthusiasts. With its versatile operating modes, advanced filtering capabilities, and clear display, it stands out as a reliable tool for both casual operators and serious DXers. Its well-thought-out design and comprehensive features make it a valuable addition to any ham's station collection.