Icom IC-910H service manual Resister ERA3YED

Page 66

[MAIN UNIT] — UX-910

REF

ORDER

 

DESCRIPTION

NO.

NO.

 

 

 

 

 

 

 

R288

7310002670

S.TRIMMER

RV-143 (RH03A3AS2) 471

R301

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R311

7030003520

S.RESISTOR

ERJ3GEYJ 472 V (4.7 k)

R312

7030003510

S.RESISTOR

ERJ3GEYJ 392 V (3.9 k)

R342

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R501

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R502

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R503

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R504

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R505

7030003520

S.RESISTOR

ERJ3GEYJ 472 V (4.7 k)

R506

7030003420

S.RESISTOR

ERJ3GEYJ 681 V (680 )

R511

7030005331

S.RESISTOR

ERA3YED 562V

R512

7030008061

S.RESISTOR

ERA3YED 222V

R514

7030009661

S.RESISTOR

ERA3YED 121V (120 )

R515

7030003200

S.RESISTOR

ERJ3GEYJ 100 V (10 )

R516

7030003470

S.RESISTOR

ERJ3GEYJ 182 V (1.8 k)

R517

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R518

7030009661

S.RESISTOR

ERA3YED 121V (120 )

R519

7030006581

S.RESISTOR

ERA3YED 122V

R531

7030003360

S.RESISTOR

ERJ3GEYJ 221 V (220 )

R533

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R541

7030003540

S.RESISTOR

ERJ3GEYJ 682 V (6.8 k)

R542

7030003540

S.RESISTOR

ERJ3GEYJ 682 V (6.8 k)

R543

7030003540

S.RESISTOR

ERJ3GEYJ 682 V (6.8 k)

R544

7030003400

S.RESISTOR

ERJ3GEYJ 471 V (470 )

R547

7030003280

S.RESISTOR

ERJ3GEYJ 470 V (47 )

R551

7030003600

S.RESISTOR

ERJ3GEYJ 223 V (22 k)

R553

7030003240

S.RESISTOR

ERJ3GEYJ 220 V (22 )

R554

7030003280

S.RESISTOR

ERJ3GEYJ 470 V (47 )

R555

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R556

7030003360

S.RESISTOR

ERJ3GEYJ 221 V (220 )

R557

7030003240

S.RESISTOR

ERJ3GEYJ 220 V (22 )

R603

7030003800

S.RESISTOR

ERJ3GEYJ 105 V (1 M)

R604

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R605

7030003360

S.RESISTOR

ERJ3GEYJ 221 V (220 )

R606

7030005981

S.RESISTOR

ERA3YKD 333V (33 k)

R607

7030003480

S.RESISTOR

ERJ3GEYJ 222 V (2.2 k)

R610

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R611

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R612

7030003300

S.RESISTOR

ERJ3GEYJ 680 V (68 )

R613

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R621

7030007230

S.RESISTOR

ERA3YED 102V

R622

7030007230

S.RESISTOR

ERA3YED 102V

R623

7030007230

S.RESISTOR

ERA3YED 102V

R624

7030007230

S.RESISTOR

ERA3YED 102V

R625

7030007230

S.RESISTOR

ERA3YED 102V

R626

7030007230

S.RESISTOR

ERA3YED 102V

R627

7030007230

S.RESISTOR

ERA3YED 102V

R628

7030007210

S.RESISTOR

ERA3YEB 102V

R629

7030007210

S.RESISTOR

ERA3YEB 102V

R630

7030007210

S.RESISTOR

ERA3YEB 102V

R631

7030007210

S.RESISTOR

ERA3YEB 102V

R633

7030007220

S.RESISTOR

ERA3YED 202V

R634

7030007220

S.RESISTOR

ERA3YED 202V

R635

7030007220

S.RESISTOR

ERA3YED 202V

R636

7030007220

S.RESISTOR

ERA3YED 202V

R637

7030007220

S.RESISTOR

ERA3YED 202V

R638

7030007220

S.RESISTOR

ERA3YED 202V

R639

7030007220

S.RESISTOR

ERA3YED 202V

R640

7030007220

S.RESISTOR

ERA3YED 202V

R641

7030007220

S.RESISTOR

ERA3YED 202V

R642

7030007220

S.RESISTOR

ERA3YED 202V

R643

7030007200

S.RESISTOR

ERA3YEB 202V

R644

7030007200

S.RESISTOR

ERA3YEB 202V

R645

7030007200

S.RESISTOR

ERA3YEB 202V

R648

7030003530

S.RESISTOR

ERJ3GEYJ 562 V (5.6 k)

R651

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R652

7030003340

S.RESISTOR

ERJ3GEYJ 151 V (150 )

R661

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R662

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R663

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R664

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R681

7030003290

S.RESISTOR

ERJ3GEYJ 560 V (56 )

R682

7030003290

S.RESISTOR

ERJ3GEYJ 560 V (56 )

R683

7030005681

S.RESISTOR

ERA3YKD 473V (47 k)

R684

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R701

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R702

7030003400

S.RESISTOR

ERJ3GEYJ 471 V (470 )

R719

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R722

7030005321

S.RESISTOR

ERA3YED 103V (10 k)

R723

7030005321

S.RESISTOR

ERA3YED 103V (10 k)

R724

7030009891

S.RESISTER

ERA3YED 151V

 

 

 

 

[MAIN UNIT] — UX-910

REF

ORDER

DESCRIPTION

NO.

NO.

 

 

 

 

 

 

 

R726

7030009891

S.RESISTER

ERA3YED 151V

R727

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R728

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R729

7030003840

S.RESISTOR

ERJ3GEYJ 225 V (2.2 M)

R731

7030003490

S.RESISTOR

ERJ3GEYJ 272 V (2.7 k)

R732

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R733

7030003380

S.RESISTOR

ERJ3GEYJ 331 V (330 )

R734

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R741

7030003510

S.RESISTOR

ERJ3GEYJ 392 V (3.9 k)

R742

7030003460

S.RESISTOR

ERJ3GEYJ 152 V (1.5 k)

R743

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R744

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R746

7030003220

S.RESISTOR

ERJ3GEYJ 150 V (15 )

R748

7030003220

S.RESISTOR

ERJ3GEYJ 150 V (15 )

R750

7030003220

S.RESISTOR

ERJ3GEYJ 150 V (15 )

R751

7030003360

S.RESISTOR

ERJ3GEYJ 221 V (220 )

R761

7030005680

S.RESISTOR

RR0816R-473-D (47 k)

R762

7030003320

S.RESISTOR

ERJ3GEYJ 101 V (100 )

R763

7030003360

S.RESISTOR

ERJ3GEYJ 221 V (220 )

R764

7030003290

S.RESISTOR

ERJ3GEYJ 560 V (56 )

R765

7030003800

S.RESISTOR

ERJ3GEYJ 105 V (1 M)

R766

7030003480

S.RESISTOR

ERJ3GEYJ 222 V (2.2 k)

R771

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R772

7030003440

S.RESISTOR

ERJ3GEYJ 102 V (1 k)

R773

7030003680

S.RESISTOR

ERJ3GEYJ 104 V (100 k)

C1

4030006850

S.CERAMIC

C1608

JB 1H 471K-T-A

C2

4030009910

S.CERAMIC

C1608

CH 1H 040B-T-A

C3

4030009510

S.CERAMIC

C1608

CH 1H 010B-T-A

C4

4030007010

S.CERAMIC

C1608

CH 1H 100D-T-A

C5

4030007090

S.CERAMIC

C1608

CH 1H 470J-T-A

C6

4030007010

S.CERAMIC

C1608

CH 1H 100D-T-A

C7

4030009520

S.CERAMIC

C1608

CH 1H 020B-T-A

C8

4030009910

S.CERAMIC

C1608

CH 1H 040B-T-A

C9

4030011770

S.CERAMIC

C1608

CH 1H 060B-T-A

C11

4030007130

S.CERAMIC

C1608

CH 1H 101J-T-A

C12

4030006980

S.CERAMIC

C1608

CH 1H 070D-T-A

C13

4030007010

S.CERAMIC

C1608

CH 1H 100D-T-A

C14

4030007090

S.CERAMIC

C1608

CH 1H 470J-T-A

C15

4030007090

S.CERAMIC

C1608

CH 1H 470J-T-A

C16

4030007130

S.CERAMIC

C1608

CH 1H 101J-T-A

C17

4030009910

S.CERAMIC

C1608

CH 1H 040B-T-A

C18

4030006980

S.CERAMIC

C1608

CH 1H 070D-T-A

C19

4030007090

S.CERAMIC

C1608

CH 1H 470J-T-A

C20

4030007010

S.CERAMIC

C1608

CH 1H 100D-T-A

C21

4030011770

S.CERAMIC

C1608

CH 1H 060B-T-A

C22

4030007010

S.CERAMIC

C1608

CH 1H 100D-T-A

C23

4030007010

S.CERAMIC

C1608

CH 1H 100D-T-A

C24

4030006880

S.CERAMIC

C1608

JB 1H 472K-T-A

C25

4030006860

S.CERAMIC

C1608

JB 1H 102K-T-A

C26

4030009520

S.CERAMIC

C1608

CH 1H 020B-T-A

C28

4030004770

S.CERAMIC

C2012

CH 1H 0R5C-T-A

C30

4510007540

ELECTROLYTIC

ECA 1CHG 471

C31

4510007540

ELECTROLYTIC

ECA 1CHG 471

C32

4030006850

S.CERAMIC

C1608

JB 1H 471K-T-A

C33

4030007010

S.CERAMIC

C1608

CH 1H 100D-T-A

C34

4030007090

S.CERAMIC

C1608

CH 1H 470J-T-A

C35

4030006880

S.CERAMIC

C1608

JB 1H 472K-T-A

C36

4510006220

S.ELECTROLYTIC

ECEV1CA101UP

C37

4030007010

S.CERAMIC

C1608

CH 1H 100D-T-A

C38

4030006860

S.CERAMIC

C1608

JB 1H 102K-T-A

C39

4030006880

S.CERAMIC

C1608

JB 1H 472K-T-A

C40

4510004630

S.ELECTROLYTIC

ECEV1CA100SR

C41

4030006860

S.CERAMIC

C1608

JB 1H 102K-T-A

C42

4030006860

S.CERAMIC

C1608

JB 1H 102K-T-A

C43

4030006860

S.CERAMIC

C1608

JB 1H 102K-T-A

C44

4030007130

S.CERAMIC

C1608

CH 1H 101J-T-A

C45

4030006860

S.CERAMIC

C1608

JB 1H 102K-T-A

C46

4030006860

S.CERAMIC

C1608

JB 1H 102K-T-A

C47

4030012610

S.CERAMIC

C2012

JB 1C 474K-T-A

C48

4030006860

S.CERAMIC

C1608

JB 1H 102K-T-A

C49

4030007130

S.CERAMIC

C1608

CH 1H 101J-T-A

C50

4030006860

S.CERAMIC

C1608

JB 1H 102K-T-A

C53

4030006860

S.CERAMIC

C1608

JB 1H 102K-T-A

C55

4030011020

S.CERAMIC

GRM42-6 CK 010C 500PT

C56

4510004990

ELECTROLYTIC

16 MV 100 HC

C58

4030006860

S.CERAMIC

C1608

JB 1H 102K-T-A

C59

4030007090

S.CERAMIC

C1608

CH 1H 470J-T-A

C60

4030007090

S.CERAMIC

C1608

CH 1H 470J-T-A

C61

4030006860

S.CERAMIC

C1608

JB 1H 102K-T-A

C63

4030006850

S.CERAMIC

C1608

JB 1H 471K-T-A

 

 

 

 

 

S.=Surface mount

6 - 27

Image 66
Contents Service Manual Repair Notes IntroductionOrdering Parts EURTable of Contents Specifications GeneralReceiver Main and PLL Units SectionInside Views FM if ICPA Unit TOP View Bottom ViewPLL IC Disassembly and Option Instructions Opening the transceiver’s caseUX-910 1200MHz Band Unit Opening the PA unit cover FL-132/FL-133 CW Narrow FilterMain SUB UT-102 Voice Synthesizer Unit Installing 1st DSP unit front panel sideInstalling 2nd DSP unit rear panel side UT-106 DSP UnitCR-293 High Stability Crystal Unit Circuit Description Receiver CircuitSquelch Control Circuit Main Unit 6 10 MHz if Circuit Main UnitDemodulator Circuit Main Unit Squelch Circuit Main UnitAGC Circuit Main Unit Transmitter CircuitsNoise Blanker Circuit Main Unit Meter Circuit Main UnitCW Keying Circuit Main Unit Transmit if Amplifier Circuit Main UnitModulation Circuit Main Unit RF Circuit PA UnitPLL Circuits PLL Circuits 7 1LO PLL Circuit8 2LO PLL Circuit Required Test Equipment Adjustment ProceduresPreparation Before Sarvicing ‘ ConnectionsPLL Adjustments Frequency AdjustmentPLL and Main Units Receiver Adjustments L353 R547P501 L354 R360Blanker EXTNoise Main Band OFFCP851 L283L22 CP852Transmitter Adjustments R138 R503C659 R131GND If TotalMain Gain LO LeakCP1613 R504R202 R1613Software Adjustment Software Adjustment MeterNoise SQL Filter CalibrationTX Power Deviation HPF OFFLPF UX-910 Adjustments C332 CP321CP322 R13Power SET APCPre-setting for APC adjustment Section Parts List Front UnitDisplay Board Resistor ERA3YED Func Board VR-A BoardVR-B Board MIC Board RIT BoardJack Board PLL UnitResistor ERA3YEB Thermistor Tantalum ECST1AD107R Main Unit REG BA09TDiode 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 VARISTOR-B Board DRV BoardBARISTOR-A Board BARISTOR-C Board2UX-910MAIN Unit Main Unit UX-910Resistor RGB3L R15 Resister ERA3YED Tantalum ECST1CC226R CH 1H Connectot 25FMN-BTK Cover Parts Mechanical PartsDisplay Unit Chassis PartsUX-910 Main Unit UnpackingUX-910 Chassis Parts UX-910 UnpackingSEMI-CONDUCTOR Information Transistors and FET’SDTA114 EE TL Diodes MA29BSection 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.