Icom IC-910H service manual Electrolytic ECEV1EA4R7SR

Page 53

[MAIN UNIT]

REF

ORDER

DESCRIPTION

NO.

NO.

 

 

 

 

 

 

 

 

C59

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C60

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C61

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C62

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C101

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C102

4030006860

S.CERAMIC

C1608

JB 1H 102K-T-A

C103

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C104

4030007140

S.CERAMIC

C1608

CH 1H 121J-T-A

C106

4030006850

S.CERAMIC

C1608

JB 1H 471K-T-A

C107

4030006930

S.CERAMIC

C1608

CH 1H 020C-T-A

C108

4030007100

S.CERAMIC

C1608

CH 1H 560J-T-A

C110

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C113

4030008860

S.CERAMIC

C1608

JB 1C 153K-T-A

C115

4510004630

S.ELECTROLYTIC

ECEV1CA100SR

C116

4510004650

S.ELECTROLYTIC

ECEV1EA4R7SR

C117

4030006870

S.CERAMIC

C1608

JB 1H 222K-T-A

C118

4510004630

S.ELECTROLYTIC

ECEV1CA100SR

C119

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C121

4030007100

S.CERAMIC

C1608

CH 1H 560J-T-A

C151

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C152

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C153

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C156

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C157

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C158

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C159

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C160

4030007010

S.CERAMIC

C1608

CH 1H 100D-T-A

C161

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C162

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C201

4510004630

S.ELECTROLYTIC

ECEV1CA100SR

C202

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C203

4510005860

S.ELECTROLYTIC

ECEV1HA2R2SR

C204

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C205

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C206

4510004440

S.ELECTROLYTIC

ECEV1HA010SR

C207

4030006850

S.CERAMIC

C1608

JB 1H 471K-T-A

C208

4030006850

S.CERAMIC

C1608

JB 1H 471K-T-A

C209

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C210

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C211

4510004630

S.ELECTROLYTIC

ECEV1CA100SR

C212

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C213

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C214

4510004630

S.ELECTROLYTIC

ECEV1CA100SR

C215

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C216

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C217

4030006880

S.CERAMIC

C1608

JB 1H 472K-T-A

C218

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C219

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C251

4510005860

S.ELECTROLYTIC

ECEV1HA2R2SR

C252

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C253

4030007130

S.CERAMIC

C1608

CH 1H 101J-T-A

C254

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C255

4030010760

S.CERAMIC

C1608

CH 1H 331J-T-A

C257

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C258

4030007160

S.CERAMIC

C1608

CH 1H 181J-T-A

C259

4030007130

S.CERAMIC

C1608

CH 1H 101J-T-A

C260

4030008290

S.CERAMIC

C1608

UJ 1H 270J-T-A

C261

4030006860

S.CERAMIC

C1608

JB 1H 102K-T-A

C262

4030008920

S.CERAMIC

C1608

JB 1C 473K-T-A

C266

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C304

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C305

4510004630

S.ELECTROLYTIC

ECEV1CA100SR

C306

4510005310

S.ELECTROLYTIC

ECEV1CA220SR

C307

4510004630

S.ELECTROLYTIC

ECEV1CA100SR

C308

4510005860

S.ELECTROLYTIC

ECEV1HA2R2SR

C309

4030007140

S.CERAMIC

C1608

CH 1H 121J-T-A

C310

4030007130

S.CERAMIC

C1608

CH 1H 101J-T-A

C311

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C312

4510004630

S.ELECTROLYTIC

ECEV1CA100SR

C313

4030006860

S.CERAMIC

C1608

JB 1H 102K-T-A

C314

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C340

4030006880

S.CERAMIC

C1608

JB 1H 472K-T-A

C342

4030006880

S.CERAMIC

C1608

JB 1H 472K-T-A

C344

4030006880

S.CERAMIC

C1608

JB 1H 472K-T-A

C345

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C352

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C353

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C354

4030006880

S.CERAMIC

C1608

JB 1H 472K-T-A

C355

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C356

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C357

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C358

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

 

 

 

 

 

[MAIN UNIT]

REF

ORDER

DESCRIPTION

NO.

NO.

 

 

 

 

 

 

 

 

C359

4030006880

S.CERAMIC

C1608

JB 1H 472K-T-A

C360

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C361

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C364

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C365

4030007130

S.CERAMIC

C1608

CH 1H 101J-T-A

C366

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C367

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C368

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C369

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C370

4510004630

S.ELECTROLYTIC

ECEV1CA100SR

C371

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C372

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C401

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C402

4030007130

S.CERAMIC

C1608

CH 1H 101J-T-A

C403

4030011810

S.CERAMIC

C1608

JB 1A 224K-T-N

C404

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C405

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C406

4030007170

S.CERAMIC

C1608

CH 1H 221J-T-A

C407

4030007170

S.CERAMIC

C1608

CH 1H 221J-T-A

C408

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C409

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C410

4550006350

S.TANTALUM

TEMSVB2 1A 226M-8L

C411

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C412

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C413

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C414

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C416

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C417

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C421

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C425

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C457

4510004440

S.ELECTROLYTIC

ECEV1HA010SR

C458

4030011810

S.CERAMIC

C1608

JB 1A 224K-T-N

C459

4510004440

S.ELECTROLYTIC

ECEV1HA010SR

C460

4030008900

S.CERAMIC

C1608

JB 1C 333K-T-A

C461

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C462

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C463

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C464

4030006870

S.CERAMIC

C1608

JB 1H 222K-T-A

C465

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C466

4030008770

S.CERAMIC

C1608

JB 1H 562K-T-A

C467

4510004630

S.ELECTROLYTIC

ECEV1CA100SR

C468

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C469

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C472

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C473

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C474

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C475

4030006850

S.CERAMIC

C1608

JB 1H 471K-T-A

C476

4030007170

S.CERAMIC

C1608

CH 1H 221J-T-A

C477

4030008900

S.CERAMIC

C1608

JB 1C 333K-T-A

C478

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C479

4030006870

S.CERAMIC

C1608

JB 1H 222K-T-A

C480

4030009580

S.CERAMIC

C1608

JB 1H 681K-T-A

C481

4510004440

S.ELECTROLYTIC

ECEV1HA010SR

C482

4510004440

S.ELECTROLYTIC

ECEV1HA010SR

C483

4030011810

S.CERAMIC

C1608

JB 1A 224K-T-N

C484

4510004630

S.ELECTROLYTIC

ECEV1CA100SR

C485

4510004630

S.ELECTROLYTIC

ECEV1CA100SR

C486

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C651

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C654

4030006960

S.CERAMIC

C1608

CH 1H 050C-T-A

C655

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C656

4030006880

S.CERAMIC

C1608

JB 1H 472K-T-A

C657

4030011600

S.CERAMIC

C1608

JB 1C 104KT-N

C658

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C659

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C660

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C661

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C662

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C701

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C706

4030006860

S.CERAMIC

C1608

JB 1H 102K-T-A

C708

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C709

4030006850

S.CERAMIC

C1608

JB 1H 471K-T-A

C710

4030006930

S.CERAMIC

C1608

CH 1H 020C-T-A

C711

4030007100

S.CERAMIC

C1608

CH 1H 560J-T-A

C713

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C716

4030008860

S.CERAMIC

C1608

JB 1C 153K-T-A

C718

4510004630

S.ELECTROLYTIC

ECEV1CA100SR

C719

4510004650

S.ELECTROLYTIC

ECEV1EA4R7SR

C720

4030006870

S.CERAMIC

C1608

JB 1H 222K-T-A

C721

4030006900

S.CERAMIC

C1608

JB 1E 103K-T-A

C722

4510004630

S.ELECTROLYTIC

ECEV1CA100SR

C723

4030007100

S.CERAMIC

C1608

CH 1H 560J-T-A

 

 

 

 

 

S.=Surface mount

6 - 14

Image 53
Contents Service Manual Ordering Parts IntroductionRepair Notes EURTable of Contents General SpecificationsReceiver Inside Views SectionMain and PLL Units FM if ICPA Unit PLL IC TOP ViewBottom View UX-910 1200MHz Band Unit Disassembly and Option InstructionsOpening the transceiver’s case Main SUB Opening the PA unit coverFL-132/FL-133 CW Narrow Filter Installing 2nd DSP unit rear panel side Installing 1st DSP unit front panel sideUT-102 Voice Synthesizer Unit UT-106 DSP UnitCR-293 High Stability Crystal Unit Receiver Circuit Circuit DescriptionDemodulator Circuit Main Unit 6 10 MHz if Circuit Main UnitSquelch Control Circuit Main Unit Squelch Circuit Main UnitNoise Blanker Circuit Main Unit Transmitter CircuitsAGC Circuit Main Unit Meter Circuit Main UnitModulation Circuit Main Unit Transmit if Amplifier Circuit Main UnitCW Keying Circuit Main Unit RF Circuit PA UnitPLL Circuits 8 2LO PLL Circuit PLL Circuits7 1LO PLL Circuit Preparation Before Sarvicing Adjustment ProceduresRequired Test Equipment ‘ ConnectionsFrequency Adjustment PLL AdjustmentsPLL and Main Units Receiver Adjustments P501 R547L353 L354 R360Noise EXTBlanker Main Band OFFL22 L283CP851 CP852Transmitter Adjustments C659 R503R138 R131Main Gain If TotalGND LO LeakR202 R504CP1613 R1613Software Adjustment Meter Software AdjustmentNoise SQL Calibration FilterTX Power LPF DeviationHPF OFF UX-910 Adjustments CP322 CP321C332 R13APC Power SETPre-setting for APC adjustment Display Board Section Parts ListFront Unit Resistor ERA3YED VR-B Board Func BoardVR-A Board Jack Board RIT BoardMIC Board PLL UnitResistor ERA3YEB Thermistor Tantalum ECST1AD107R REG BA09T Main UnitDiode 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 BoardMain Unit UX-910 2UX-910MAIN UnitResistor RGB3L R15 Resister ERA3YED Tantalum ECST1CC226R CH 1H Connectot 25FMN-BTK Display Unit Mechanical PartsCover Parts Chassis PartsUX-910 Chassis Parts UnpackingUX-910 Main Unit UX-910 UnpackingTransistors and FET’S SEMI-CONDUCTOR InformationDTA114 EE TL MA29B DiodesSection Board Layouts Page Icom America Inc 13714HZ-C1

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.