Icom IC-910H service manual Connectot 25FMN-BTK

Page 69

[MAIN UNIT] — UX-910

REF

ORDER

 

DESCRIPTION

NO.

NO.

 

 

 

 

 

 

 

 

 

 

 

C731

4030007050

S.CERAMIC

C1608

CH 1H 220J-T-A

C732

4030007050

S.CERAMIC

C1608

CH 1H 220J-T-A

C733

4030009520

S.CERAMIC

C1608

CH 1H 020B-T-A

C734

4030011600

S.CERAMIC

C1608

JB

1C

104KT-N

C735

4030006860

S.CERAMIC

C1608

JB

1H

102K-T-A

C741

4030006860

S.CERAMIC

C1608

JB

1H

102K-T-A

C742

4030007020

S.CERAMIC

C1608

CH 1H 120J-T-A

C743

4030011600

S.CERAMIC

C1608

JB

1C

104KT-N

C744

4030006860

S.CERAMIC

C1608

JB

1H

102K-T-A

C746

4550006080

S.TANTALUM

TEMSVB2 1C 106M-8L

C747

4030007020

S.CERAMIC

C1608

CH 1H 120J-T-A

C748

4030009550

S.CERAMIC

C1608

CH 1H 2R5B-T-A

C749

4030007020

S.CERAMIC

C1608

CH 1H 120J-T-A

C750

4030006880

S.CERAMIC

C1608

JB

1H

472K-T-A

C751

4030007050

S.CERAMIC

C1608

CH 1H 220J-T-A

C752

4030007050

S.CERAMIC

C1608

CH 1H 220J-T-A

C753

4030009520

S.CERAMIC

C1608

CH 1H 020B-T-A

C754

4550006770

S.TANTALUM

TEMSVD2 1C 476M-12R

C755

4550003220

S.TANTALUM

TEMSVA 1E 105M-8L

C756

4030006860

S.CERAMIC

C1608

JB

1H

102K-T-A

C761

4030006860

S.CERAMIC

C1608

JB

1H

102K-T-A

C762

4030006860

S.CERAMIC

C1608

JB

1H

102K-T-A

C763

4030006860

S.CERAMIC

C1608

JB

1H

102K-T-A

C764

4030011600

S.CERAMIC

C1608

JB

1C

104KT-N

C765

4030006860

S.CERAMIC

C1608

JB

1H

102K-T-A

C766

4030006860

S.CERAMIC

C1608

JB

1H

102K-T-A

C767

4030006860

S.CERAMIC

C1608

JB

1H

102K-T-A

C769

4030011600

S.CERAMIC

C1608

JB

1C

104KT-N

C770

4030006850

S.CERAMIC

C1608

JB

1H

471K-T-A

C771

4030006850

S.CERAMIC

C1608

JB

1H

471K-T-A

C772

4030006860

S.CERAMIC

C1608

JB

1H

102K-T-A

C773

4030011600

S.CERAMIC

C1608

JB

1C

104KT-N

C774

4030006860

S.CERAMIC

C1608

JB

1H

102K-T-A

C775

4030006860

S.CERAMIC

C1608

JB

1H

102K-T-A

C776

4030006860

S.CERAMIC

C1608

JB

1H

102K-T-A

C777

4030006860

S.CERAMIC

C1608

JB

1H

102K-T-A

C778

4030006860

S.CERAMIC

C1608

JB

1H

102K-T-A

RL51

6330000810

RELAY

ARK115

 

 

J311

6510022280

CONNECTOT

25FMN-BTK

 

W5

7030003860

S.JUMPER

ERJ3GE JPW V

W10

7030008240

S.JUMPER

ERJ12YJ0R00U

W11

7030008240

S.JUMPER

ERJ12YJ0R00U

W12

7030008240

S.JUMPER

ERJ12YJ0R00U

W13

7030000010

S.JUMPER

MCR10EZHJ JPW (000)

W14

7030008240

S.JUMPER

ERJ12YJ0R00U

W15

7030008240

S.JUMPER

ERJ12YJ0R00U

W16

7030000010

S.JUMPER

MCR10EZHJ JPW (000)

W17

7030008240

S.JUMPER

ERJ12YJ0R00U

W18

7030008240

S.JUMPER

ERJ12YJ0R00U

W19

7030008240

S.JUMPER

ERJ12YJ0R00U

W20

7030010250

S.JUMPER

ERJ1TYJ 0R00U

W21

7030008240

S.JUMPER

ERJ12YJ0R00U

W22

7030000010

S.JUMPER

MCR10EZHJ JPW (000)

W23

7030008240

S.JUMPER

ERJ12YJ0R00U

W31

8900010412

CABLE

OPC-991B

 

W32

7120000490

JUMPER

ERD25T0

 

 

W51

7120000490

JUMPER

ERD25T0

 

 

W52

7120000490

JUMPER

ERD25T0

 

 

W63

7030003860

S.JUMPER

ERJ3GE JPW V

W142

7030003860

S.JUMPER

ERJ3GE JPW V

W182

7030003860

S.JUMPER

ERJ3GE JPW V

W202

7030003860

S.JUMPER

ERJ3GE JPW V

W223

7030003860

S.JUMPER

ERJ3GE JPW V

W241

7030008240

S.JUMPER

ERJ12YJ0R00U

W242

7030008240

S.JUMPER

ERJ12YJ0R00U

W281

7120000470

JUMPER

ERDS2T0

 

 

W290

7120000470

JUMPER

ERDS2T0

 

 

W311

7030003860

S.JUMPER

ERJ3GE JPW V

W531

7030008240

S.JUMPER

ERJ12YJ0R00U

W532

7030008240

S.JUMPER

ERJ12YJ0R00U

W601

7030000010

S.JUMPER

MCR10EZHJ JPW (000)

W731

7030003860

S.JUMPER

ERJ3GE JPW V

WS1

8970023850

E.OTHER

EX2356 1.5D COAXIAL TUBE (1)/MA

 

 

 

 

 

 

 

[MAIN UNIT] — UX-910

REF

ORDER

 

DESCRIPTION

NO.

NO.

 

 

 

 

 

 

 

EP1

0910052786

PCB

B 5468F

EP10

6910000970

BEAD

DL-2OP 2.6-3-1.2H

EP11

6910000970

BEAD

DL-2OP 2.6-3-1.2H

EP12

6910000970

BEAD

DL-2OP 2.6-3-1.2H

EP312

6910000630

BEAD

FSOH070RN

EP313

9010001410

TUBE

TUBE 8.0 (d)

EP510

6910012350

S.BEAD

MMZ1608Y 102BT

EP543

6910012350

S.BEAD

MMZ1608Y 102BT

EP610

6910012350

S.BEAD

MMZ1608Y 102BT

 

 

 

 

S.=Surface mount

6 - 30

Image 69
Contents Service Manual Ordering Parts IntroductionRepair Notes EURTable of Contents General SpecificationsReceiver Inside Views SectionMain and PLL Units 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 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 PLL Circuits 7 1LO PLL Circuit8 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 Deviation HPF OFFLPF UX-910 Adjustments CP322 CP321C332 R13APC Power SETPre-setting for APC adjustment Section Parts List Front UnitDisplay Board Resistor ERA3YED Func Board VR-A 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.