Icom IC-910H service manual Resistor ERA3YKD

Page 49

[MAIN UNIT]

REF

ORDER

 

DESCRIPTION

NO.

NO.

 

 

 

 

 

 

 

L652

6150004210

COIL

LS-480

L653

6150004170

COIL

LS-476

L703

6150004880

S.COIL

LS-513

L704

6150004880

S.COIL

LS-513

L851

6150004200

COIL

LS-479

L852

6150004210

COIL

LS-480

L853

6150004170

COIL

LS-476

L854

6200002040

S.COIL

NL 252018T-101J

L951

6200002040

S.COIL

NL 252018T-101J

L1561

6200002040

S.COIL

NL 252018T-101J

L1562

6200002040

S.COIL

NL 252018T-101J

L1563

6200002040

S.COIL

NL 252018T-101J

L1564

6200002040

S.COIL

NL 252018T-101J

L1565

6200002040

S.COIL

NL 252018T-101J

L1571

6200002040

S.COIL

NL 252018T-101J

L1572

6200002040

S.COIL

NL 252018T-101J

L1575

6200002040

S.COIL

NL 252018T-101J

L1581

6200002040

S.COIL

NL 252018T-101J

L1582

6200003950

S.COIL

HF50ACC 322513-T

L1583

6200002040

S.COIL

NL 252018T-101J

L1584

6200003950

S.COIL

HF50ACC 322513-T

L1585

6200002040

S.COIL

NL 252018T-101J

L1586

6200003950

S.COIL

HF50ACC 322513-T

L1587

6200002040

S.COIL

NL 252018T-101J

L1851

6170000140

COIL

LW-15

L1852

6200003950

S.COIL

HF50ACC 322513-T

L1853

6200003950

S.COIL

HF50ACC 322513-T

L1854

6200003950

S.COIL

HF50ACC 322513-T

R1

7030003480

S.RESISTOR

ERJ3GEYJ 222 V (2.2 k)

R2

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R3

7310002720

S.TRIMMER

RV-148 (RH03A3AS3X0DA) 472

R4

7030003600

S.RESISTOR

ERJ3GEYJ 223 V (22 k)

R5

7510001160

S.THERMISTOR

NTCCM1608 4LH 473KC

R6

7030003270

S.RESISTOR

ERJ3GEYJ 390 V (39 )

R7

7030003500

S.RESISTOR

ERJ3GEYJ 332 V (3.3 k)

R8

7030003620

S.RESISTOR

ERJ3GEYJ 333 V (33 k)

R9

7030003360

S.RESISTOR

ERJ3GEYJ 221 V (220 )

R10

7030003520

S.RESISTOR

ERJ3GEYJ 472 V (4.7 k)

R21

7030003480

S.RESISTOR

ERJ3GEYJ 222 V (2.2 k)

R22

7030003600

S.RESISTOR

ERJ3GEYJ 223 V (22 k)

R23

7030003640

S.RESISTOR

ERJ3GEYJ 473 V (47 k)

R24

7030003600

S.RESISTOR

ERJ3GEYJ 223 V (22 k)

R51

7030003640

S.RESISTOR

ERJ3GEYJ 473 V (47 k)

R52

7030003640

S.RESISTOR

ERJ3GEYJ 473 V (47 k)

R53

7030003640

S.RESISTOR

ERJ3GEYJ 473 V (47 k)

R54

7030003480

S.RESISTOR

ERJ3GEYJ 222 V (2.2 k)

R55

7030003480

S.RESISTOR

ERJ3GEYJ 222 V (2.2 k)

R56

7030003480

S.RESISTOR

ERJ3GEYJ 222 V (2.2 k)

R57

7030003680

S.RESISTOR

ERJ3GEYJ 104 V (100 k)

R58

7030003560

S.RESISTOR

ERJ3GEYJ 103 V (10 k)

R59

7030003510

S.RESISTOR

ERJ3GEYJ 392 V (3.9 k)

R60

7030003240

S.RESISTOR

ERJ3GEYJ 220 V (22 )

R61

7030003760

S.RESISTOR

ERJ3GEYJ 474 V (470 k)

R62

7510001250

S.THERMISTOR

NTCCM1608 3NH 471KC

R63

7030003330

S.RESISTOR

ERJ3GEYJ 121 V (120 )

R64

7030003560

S.RESISTOR

ERJ3GEYJ 103 V (10 k)

R65

7030003560

S.RESISTOR

ERJ3GEYJ 103 V (10 k)

R66

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R67

7030003530

S.RESISTOR

ERJ3GEYJ 562 V (5.6 k)

R68

7030003480

S.RESISTOR

ERJ3GEYJ 222 V (2.2 k)

R101

7030003680

S.RESISTOR

ERJ3GEYJ 104 V (100 k)

R102

7030003520

S.RESISTOR

ERJ3GEYJ 472 V (4.7 k)

R103

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R104

7030003760

S.RESISTOR

ERJ3GEYJ 474 V (470 k)

R105

7030003680

S.RESISTOR

ERJ3GEYJ 104 V (100 k)

R106

7030003520

S.RESISTOR

ERJ3GEYJ 472 V (4.7 k)

R107

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R108

7030003640

S.RESISTOR

ERJ3GEYJ 473 V (47 k)

R109

7030003480

S.RESISTOR

ERJ3GEYJ 222 V (2.2 k)

R110

7030003640

S.RESISTOR

ERJ3GEYJ 473 V (47 k)

R111

7030003530

S.RESISTOR

ERJ3GEYJ 562 V (5.6 k)

R112

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R113

7030003340

S.RESISTOR

ERJ3GEYJ 151 V (150 )

R114

7030003280

S.RESISTOR

ERJ3GEYJ 470 V (47 )

R151

7030003520

S.RESISTOR

ERJ3GEYJ 472 V (4.7 k)

R152

7030003460

S.RESISTOR

ERJ3GEYJ 152 V (1.5 k)

R153

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R154

7030003520

S.RESISTOR

ERJ3GEYJ 472 V (4.7 k)

R155

7030003430

S.RESISTOR

ERJ3GEYJ 821 V (820 )

R156

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

 

 

 

 

[MAIN UNIT]

REF

ORDER

 

DESCRIPTION

NO.

NO.

 

 

 

 

 

 

 

R157

7030003520

S.RESISTOR

ERJ3GEYJ 472 V (4.7 k)

R158

7030003460

S.RESISTOR

ERJ3GEYJ 152 V (1.5 k)

R159

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R160

7030003520

S.RESISTOR

ERJ3GEYJ 472 V (4.7 k)

R161

7030003430

S.RESISTOR

ERJ3GEYJ 821 V (820 )

R162

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R163

7030003520

S.RESISTOR

ERJ3GEYJ 472 V (4.7 k)

R164

7030003520

S.RESISTOR

ERJ3GEYJ 472 V (4.7 k)

R165

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R166

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R167

7030003520

S.RESISTOR

ERJ3GEYJ 472 V (4.7 k)

R168

7030003540

S.RESISTOR

ERJ3GEYJ 682 V (6.8 k)

R169

7030003520

S.RESISTOR

ERJ3GEYJ 472 V (4.7 k)

R202

7310002740

S.TRIMMER

RV-150 (RH03A3A14X0FC) 103

R203

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R205

7030005451

S.RESISTOR

ERA3YED 153V

R206

7310004930

S.TRIMMER

EVM-3YSX50 B22 (201)

R207

7030005451

S.RESISTOR

ERA3YED 153V

R208

7030003380

S.RESISTOR

ERJ3GEYJ 331 V (330 )

R209

7030006461

S.RESISTOR

ERA3YED 152V

R210

7030003460

S.RESISTOR

ERJ3GEYJ 152 V (1.5 k)

R211

7030007230

S.RESISTOR

ERA3YED 102V

R212

7030007230

S.RESISTOR

ERA3YED 102V

R213

7030003490

S.RESISTOR

ERJ3GEYJ 272 V (2.7 k)

R215

7310004780

S.TRIMMER

EVM-3YSX50 B13 (102)

R216

7030007230

S.RESISTOR

ERA3YED 102V

R217

7030003490

S.RESISTOR

ERJ3GEYJ 272 V (2.7 k)

R218

7030003550

S.RESISTOR

ERJ3GEYJ 822 V (8.2 k)

R219

7030003400

S.RESISTOR

ERJ3GEYJ 471 V (470 )

R220

7030005871

S.RESISTOR

ERA3YKD 104V

R221

7030005871

S.RESISTOR

ERA3YKD 104V

R222

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R251

7030003400

S.RESISTOR

ERJ3GEYJ 471 V (470 )

R252

7030003400

S.RESISTOR

ERJ3GEYJ 471 V (470 )

R253

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R254

7030003600

S.RESISTOR

ERJ3GEYJ 223 V (22 k)

R255

7030003360

S.RESISTOR

ERJ3GEYJ 221 V (220 )

R256

7030003500

S.RESISTOR

ERJ3GEYJ 332 V (3.3 k)

R257

7030003460

S.RESISTOR

ERJ3GEYJ 152 V (1.5 k)

R258

7030003600

S.RESISTOR

ERJ3GEYJ 223 V (22 k)

R259

7030003610

S.RESISTOR

ERJ3GEYJ 273 V (27 k)

R260

7030003600

S.RESISTOR

ERJ3GEYJ 223 V (22 k)

R261

7030003480

S.RESISTOR

ERJ3GEYJ 222 V (2.2 k)

R262

7030003760

S.RESISTOR

ERJ3GEYJ 474 V (470 k)

R264

7030003560

S.RESISTOR

ERJ3GEYJ 103 V (10 k)

R265

7510001110

S.THERMISTOR

NTCCM1608 4BH 153KC

R266

7030003610

S.RESISTOR

ERJ3GEYJ 273 V (27 k)

R267

7030003520

S.RESISTOR

ERJ3GEYJ 472 V (4.7 k)

R268

7030003560

S.RESISTOR

ERJ3GEYJ 103 V (10 k)

R269

7030003520

S.RESISTOR

ERJ3GEYJ 472 V (4.7 k)

R270

7030003640

S.RESISTOR

ERJ3GEYJ 473 V (47 k)

R271

7030003640

S.RESISTOR

ERJ3GEYJ 473 V (47 k)

R302

7030003840

S.RESISTOR

ERJ3GEYJ 225 V (2.2 M)

R303

7030004710

S.RESISTOR

ERJ3GEYJ 475 V (4.7 M)

R304

7030003810

S.RESISTOR

ERJ3GEYJ 125 V (1.2 M)

R305

7030004710

S.RESISTOR

ERJ3GEYJ 475 V (4.7 M)

R306

7030003400

S.RESISTOR

ERJ3GEYJ 471 V (470 )

R307

7030003490

S.RESISTOR

ERJ3GEYJ 272 V (2.7 k)

R308

7030003520

S.RESISTOR

ERJ3GEYJ 472 V (4.7 k)

R309

7030003400

S.RESISTOR

ERJ3GEYJ 471 V (470 )

R310

7030003560

S.RESISTOR

ERJ3GEYJ 103 V (10 k)

R311

7030003740

S.RESISTOR

ERJ3GEYJ 334 V (330 k)

R312

7030003600

S.RESISTOR

ERJ3GEYJ 223 V (22 k)

R313

7030003520

S.RESISTOR

ERJ3GEYJ 472 V (4.7 k)

R314

7030003780

S.RESISTOR

ERJ3GEYJ 684 V (680 k)

R315

7030003680

S.RESISTOR

ERJ3GEYJ 104 V (100 k)

R316

7030003600

S.RESISTOR

ERJ3GEYJ 223 V (22 k)

R317

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R340

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R341

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R344

7030003480

S.RESISTOR

ERJ3GEYJ 222 V (2.2 k)

R345

7030003200

S.RESISTOR

ERJ3GEYJ 100 V (10 )

R346

7030003490

S.RESISTOR

ERJ3GEYJ 272 V (2.7 k)

R353

7030003400

S.RESISTOR

ERJ3GEYJ 471 V (470 )

R355

7030003330

S.RESISTOR

ERJ3GEYJ 121 V (120 )

R356

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R358

7510001110

S.THERMISTOR

NTCCM1608 4BH 153KC

R359

7030003640

S.RESISTOR

ERJ3GEYJ 473 V (47 k)

R360

7310002600

S.TRIMMER

RV-110 (RH03A3AS4X0AA) 473

R361

7030003640

S.RESISTOR

ERJ3GEYJ 473 V (47 k)

R362

7030003400

S.RESISTOR

ERJ3GEYJ 471 V (470 )

R363

7030003330

S.RESISTOR

ERJ3GEYJ 121 V (120 )

 

 

 

 

S.=Surface mount

6 - 10

Image 49
Contents Service Manual Ordering Parts IntroductionRepair Notes EURTable of Contents General SpecificationsReceiver Inside Views SectionMain and PLL Units FM if ICPA 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 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 7 1LO PLL Circuit PLL Circuits8 2LO 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 HPF OFF DeviationLPF UX-910 Adjustments CP322 CP321C332 R13APC Power SETPre-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 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.