JB 1C | Icom IC-910H instruction

[PA UNIT]

REF	ORDER		DESCRIPTION
NO.	NO.		DESCRIPTION
NO.	NO.

C307	4030006860	S.CERAMIC	C1608	JB 1H	102K-T-A
C308	4030006860	S.CERAMIC	C1608	JB 1H	102K-T-A
C309	4510007540	ELECTROLYTIC	ECA 1CHG 471
C310	4030007170	S.CERAMIC	C1608	CH 1H 221J-T-A
C311	4030006880	S.CERAMIC	C1608	JB 1H	472K-T-A
C312	4030011600	S.CERAMIC	C1608	JB 1C	104KT-N
C313	4030006860	S.CERAMIC	C1608	JB 1H	102K-T-A
C314	4030006860	S.CERAMIC	C1608	JB 1H	102K-T-A
C318	4030006850	S.CERAMIC	C1608	JB 1H	471K-T-A
C319	4030006980	S.CERAMIC	C1608	CH 1H 070D-T-A
C320	4030007020	S.CERAMIC	C1608	CH 1H 120J-T-A
C321	4030007030	S.CERAMIC	C1608	CH 1H 150J-T-A
C322	4030007010	S.CERAMIC	C1608	CH 1H 100D-T-A
C323	4030007020	S.CERAMIC	C1608	CH 1H 120J-T-A
C324	4030009920	S.CERAMIC	C1608	CH 1H 050B-T-A
C325	4030006860	S.CERAMIC	C1608	JB 1H	102K-T-A
C326	4030006860	S.CERAMIC	C1608	JB 1H	102K-T-A
C327	4030007030	S.CERAMIC	C1608	CH 1H 150J-T-A
C328	4030006970	S.CERAMIC	C1608	CH 1H 060D-T-A
C329	4030011040	S.CERAMIC	GRM42-6 CK 020C 500PT
C330	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C331	4030006850	S.CERAMIC	C1608	JB 1H 471K-T-A
C332	4030006850	S.CERAMIC	C1608	JB 1H 471K-T-A
C333	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C335	4030006850	S.CERAMIC	C1608	JB 1H 471K-T-A
C338	4030006850	S.CERAMIC	C1608	JB 1H 471K-T-A
C339	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C340	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C341	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C343	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C345	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C346	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C347	4030007090	S.CERAMIC	C1608	CH 1H 470J-T-A
C348	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C350	4030009920	S.CERAMIC	C1608	CH 1H 050B-T-A
C351	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C354	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C356	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C357	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C361	4030006850	S.CERAMIC	C1608	JB 1H 471K-T-A
C364	4030006850	S.CERAMIC	C1608	JB 1H 471K-T-A
C367	4030006850	S.CERAMIC	C1608	JB 1H 471K-T-A
C368	4030006850	S.CERAMIC	C1608	JB 1H 471K-T-A
C369	4030006850	S.CERAMIC	C1608	JB 1H 471K-T-A
C370	4030006990	S.CERAMIC	C1608	CH 1H 080D-T-A
C371	4030009510	S.CERAMIC	C1608	CH 1H 010B-T-A
C372	4030006990	S.CERAMIC	C1608	CH 1H 080D-T-A
C373	4030009920	S.CERAMIC	C1608	CH 1H 050B-T-A
C374	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C375	4030009920	S.CERAMIC	C1608	CH 1H 050B-T-A
C379	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C381	4030007080	S.CERAMIC	C1608	CH 1H 390J-T-A
C382	4030007020	S.CERAMIC	C1608	CH 1H 120J-T-A
C383	4030007080	S.CERAMIC	C1608	CH 1H 390J-T-A
C384	4030009920	S.CERAMIC	C1608	CH 1H 050B-T-A
C391	4030007010	S.CERAMIC	C1608	CH 1H 100D-T-A
C392	4030007010	S.CERAMIC	C1608	CH 1H 100D-T-A
C393	4030007010	S.CERAMIC	C1608	CH 1H 100D-T-A
C394	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C397	4030009910	S.CERAMIC	C1608	CH 1H 040B-T-A
C398	4030009920	S.CERAMIC	C1608	CH 1H 050B-T-A
C399	4030009920	S.CERAMIC	C1608	CH 1H 050B-T-A
C401	4030007170	S.CERAMIC	C1608	CH 1H 221J-T-A
C402	4030007170	S.CERAMIC	C1608	CH 1H 221J-T-A
C403	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C404	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C405	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C406	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C407	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C408	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C411	4030007170	S.CERAMIC	C1608	CH 1H 221J-T-A
C412	4030006880	S.CERAMIC	C1608	JB 1H 472K-T-A
C413	4030011600	S.CERAMIC	C1608	JB 1C 104KT-N
C414	4030007140	S.CERAMIC	C1608	CH 1H 121J-T-A
C415	4030007140	S.CERAMIC	C1608	CH 1H 121J-T-A
C416	4030007090	S.CERAMIC	C1608	CH 1H 470J-T-A
C417	4030007090	S.CERAMIC	C1608	CH 1H 470J-T-A
C418	4030007140	S.CERAMIC	C1608	CH 1H 121J-T-A
C419	4030007140	S.CERAMIC	C1608	CH 1H 121J-T-A
C501	4030006880	S.CERAMIC	C1608	JB 1H 472K-T-A
C502	4030006880	S.CERAMIC	C1608	JB 1H 472K-T-A
C503	4030008360	S.CERAMIC	C1608	UJ 1H 101J-T-A

[PA UNIT]

REF	ORDER		DESCRIPTION
NO.	NO.		DESCRIPTION
NO.	NO.

C504	4030007070	S.CERAMIC	C1608	CH 1H 330J-T-A
C505	4030007070	S.CERAMIC	C1608	CH 1H 330J-T-A
C506	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C507	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C509	4030008280	S.CERAMIC	C1608	UJ 1H 220J-T-A
C510	4030008280	S.CERAMIC	C1608	UJ 1H 220J-T-A
C511	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C512	4030009520	S.CERAMIC	C1608	CH 1H 020B-T-A
C513	4030007170	S.CERAMIC	C1608	CH 1H 221J-T-A
C514	4030009500	S.CERAMIC	C1608	CH 1H 0R5B-T-A
C515	4030009570	S.CERAMIC	C1608	CH 1H 0R3B-T-A
C516	4030007170	S.CERAMIC	C1608	CH 1H 221J-T-A
C517	4030009550	S.CERAMIC	C1608	CH 1H 2R5B-T-A
C518	4030010150	S.CERAMIC	C1608	SL 1H 561J-T-A
C520	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C521	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C522	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C523	4030011600	S.CERAMIC	C1608	JB 1C 104KT-N
C524	4030007030	S.CERAMIC	C1608	CH 1H 150J-T-A
C525	4030007030	S.CERAMIC	C1608	CH 1H 150J-T-A
C526	4030006900	S.CERAMIC	C1608	JB 1E 103K-T-A
C529	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C537	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C538	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C540	4030006880	S.CERAMIC	C1608	JB 1H 472K-T-A
C541	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C542	4030006880	S.CERAMIC	C1608	JB 1H 472K-T-A
C543	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C544	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C545	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C547	4030007030	S.CERAMIC	C1608	CH 1H 150J-T-A
C549	4030009500	S.CERAMIC	C1608	CH 1H 0R5B-T-A
C550	4030007030	S.CERAMIC	C1608	CH 1H 150J-T-A
C552	4030009560	S.CERAMIC	C1608	CH 1H R75B-T-A
C554	4030007020	S.CERAMIC	C1608	CH 1H 120J-T-A
C555	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C556	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C558	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C559	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C560	4030007030	S.CERAMIC	C1608	CH 1H 150J-T-A
C561	4030007130	S.CERAMIC	C1608	CH 1H 101J-T-A
C562	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C563	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C564	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C565	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C566	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C567	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C568	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C569	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C570	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C571	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C572	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C573	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C575	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C576	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C578	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C579	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C580	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C581	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C582	4030007070	S.CERAMIC	C1608	CH 1H 330J-T-A
C583	4030009990	S.CERAMIC	C1608	CH 1H 200J-T-A
C584	4030007010	S.CERAMIC	C1608	CH 1H 100D-T-A
C585	4030007020	S.CERAMIC	C1608	CH 1H 120J-T-A
C586	4030006880	S.CERAMIC	C1608	JB 1H 472K-T-A
C587	4030006880	S.CERAMIC	C1608	JB 1H 472K-T-A
C588	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C589	4030006880	S.CERAMIC	C1608	JB 1H 472K-T-A
C590	4030007140	S.CERAMIC	C1608	CH 1H 121J-T-A
C591	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C592	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C593	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C594	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C595	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C596	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C597	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C598	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A
C600	4030009350	S.CERAMIC	C1608	CH 1H 3R5B-T-A
C601	4030009550	S.CERAMIC	C1608	CH 1H 2R5B-T-A
C602	4030007050	S.CERAMIC	C1608	CH 1H 220J-T-A
C603	4030007080	S.CERAMIC	C1608	CH 1H 390J-T-A
C604	4030009650	S.CERAMIC	C1608	CH 1H 240J-T-A
C606	4030006860	S.CERAMIC	C1608	JB 1H 102K-T-A

S.=Surface mount

6 - 22

Image 61

Icom IC-910H service manual JB 1C

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.

Contents

Service Manual Ordering Parts IntroductionRepair Notes EUR Table of Contents General Specifications Receiver Inside Views SectionMain and PLL Units FM if IC PA Unit Bottom View TOP ViewPLL IC Opening the transceiver’s case Disassembly and Option InstructionsUX-910 1200MHz Band Unit FL-132/FL-133 CW Narrow Filter Opening the PA unit coverMain SUB Installing 2nd DSP unit rear panel side Installing 1st DSP unit front panel sideUT-102 Voice Synthesizer Unit UT-106 DSP Unit CR-293 High Stability Crystal Unit Receiver Circuit Circuit Description Demodulator Circuit Main Unit 6 10 MHz if Circuit Main UnitSquelch Control Circuit Main Unit Squelch Circuit Main Unit Noise Blanker Circuit Main Unit Transmitter CircuitsAGC Circuit Main Unit Meter Circuit Main Unit Modulation Circuit Main Unit Transmit if Amplifier Circuit Main UnitCW Keying Circuit Main Unit RF Circuit PA Unit PLL Circuits 7 1LO PLL Circuit PLL Circuits8 2LO PLL Circuit Preparation Before Sarvicing Adjustment ProceduresRequired Test Equipment ‘ Connections Frequency Adjustment PLL Adjustments PLL and Main Units Receiver Adjustments P501 R547L353 L354 R360 Noise EXTBlanker Main Band OFF L22 L283CP851 CP852 Transmitter Adjustments C659 R503R138 R131 Main Gain If TotalGND LO Leak R202 R504CP1613 R1613 Software Adjustment Meter Software Adjustment Noise SQL Calibration Filter TX Power HPF OFF DeviationLPF UX-910 Adjustments CP322 CP321C332 R13 APC Power SET Pre-setting for APC adjustment Front Unit Section Parts ListDisplay Board Resistor ERA3YED VR-A Board Func BoardVR-B Board Jack Board RIT BoardMIC Board PLL Unit Resistor ERA3YEB Thermistor Tantalum ECST1AD107R REG BA09T Main Unit Diode DAN222TL Resistor ERA3YKD R364 7030003320 R915 7030003520 Tantalum Temsva 1C 335M-8L Electrolytic ECEV1EA4R7SR Electrolytic Relay Diode HSU88TRF Coil Eljre 15NG-F Resistor ERJ1WYJ181U Resistor ERJ1TYJ102U JB 1H JB 1C Mica BARISTOR-A Board DRV BoardVARISTOR-B Board BARISTOR-C Board Main Unit UX-910 2UX-910MAIN Unit Resistor RGB3L R15 Resister ERA3YED Tantalum ECST1CC226R CH 1H Connectot 25FMN-BTK Display Unit Mechanical PartsCover Parts Chassis Parts UX-910 Chassis Parts UnpackingUX-910 Main Unit UX-910 Unpacking Transistors and FET’S SEMI-CONDUCTOR Information DTA114 EE TL MA29B Diodes Section Board Layouts Page Icom America Inc 13714HZ-C1