Icom IC-910H service manual Mechanical Parts, Display Unit, Cover Parts, Chassis Parts

Page 70

SECTION 7 MECHANICAL PARTS

[FRONT UNIT]

REF. NO.

ORDER NO.

DESCRIPTION

QTY.

 

 

 

 

EP1

6910012480

RMS20-250-201-1R

1

EP2

6450001230

HLJ0999-01-480

1

MP1

8210017280

2355 front panel assembly

1

MP2

8310048750

2355 window plate

1

MP4

8930053620

2355 A-power key

1

MP5

8930052170

2355 FUNC key

1

MP6

8930052180

2355 key board

1

MP7

8010018220

2355 sub chassis assembly

1

MP9

8610010970

Knob N283 assembly

1

MP13

8930049370

2240 brake sheet

1

MP14

8930052200

2355 brake plate

1

MP15

8930014030

610 brake pat

1

MP17

8610010260

Knob N252

1

MP19

8610010880

Knob N273 (B)

1

MP20

8610010260

Knob N252

1

MP22

8610010880

Knob N273 (B)

1

MP23

8610010260

Knob N252

1

MP25

8610010880

Knob N273 (B)

1

MP31

8810009130

Screw PH BT M3 X 12 NI-ZU

1

MP32

8810008660

Screw PH BT M3 X 8 NI-ZU

2

MP33

8810008630

Screw PH BT M3 X 6 NI-ZU

1

MP34

8810008630

Screw PH BT M3 X 6 NI-ZU

7

MP35

8810009560

Screw PH BT M2 X 6 ZK

2

MP36

8820000770

1296 screw

1

MP38

8930054510

Rubber sheet (AW)

1

 

 

 

 

[DISPLAY UNIT]

REF. NO.

ORDER NO.

 

DESCRIPTION

QTY.

 

 

 

 

DS31

5030001840

LCD A0095

1

EP31

8930052490

LCD contact SRCN-2355-SP-N-W

2

MP1

8210016870

2355 reflector

1

MP2

8930052230

2355

LCD filter

1

MP3

8930052221

2355

LCD holder-1

1

MP4

8930049930

Sheet CC

2

MP801*

8510013290

2355

DC case

1

MP802

8510013280

2355

DC cover

1

[VR-A BOARD]

REF. NO.

ORDER NO.

DESCRIPTION

QTY.

 

 

 

 

R1

7210002970

Variable register RV-314

1

[VR-B BOARD]

REF. NO.

ORDER NO.

DESCRIPTION

QTY.

 

 

 

 

R1

7210002970

Variable register RV-314

1

[RIT BOARD]

REF. NO.

ORDER NO.

DESCRIPTION

QTY.

 

 

 

 

R1

7210003090

Variable register RV-316

1

[JACK BOARD]

REF. NO.

ORDER NO.

DESCRIPTION

QTY.

 

 

 

 

J1

6450001250

Connector HLJ4306-01-3070

1

[MIC BOARD]

REF. NO.

ORDER NO.

DESCRIPTION

QTY.

 

 

 

 

J1

6510000190

Connector FM214-8SS

1

[COVER PARTS]

REF. NO.

ORDER NO.

DESCRIPTION

QTY.

 

 

 

 

SP1

2510000040

Speaker C065K12I0810

1

MP1

8110007190

2355 L-cover

1

MP2

8110007310

2355 U-cover assembly

1

MP5

8930006390

Speaker holder

1

MP6

8930005790

Collar foot (A)

1

MP7

8930005800

Collar foot (B)

1

MP8

8010001520

Stand (C)

1

MP9

8930002900

Rubber foot (A)

2

MP10

8930007120

Sheet B

2

MP21

8810009030

Screw FH M3 X 8 ZK

4

MP22

8810008660

Screw PH BT M3 X 8 NI-ZU

2

MP23

8810008660

Screw PH BT M3 X 8 NI-ZU

2

MP24

8810009130

Screw PH BT M3 X 12 NI-ZU

2

MP25

8810005770

Screw BiH M3 X 8 ZK

14

MP33

8930052550

2241 sheet

2

MP34

8930047900

Cushion sheet (G)

1

MP35

8930054520

Shield sponge (E)

1

[CHASSIS PARTS]

REF. NO.

ORDER NO.

DESCRIPTION

QTY.

 

 

 

 

J1

6510000370

Connector MR-DS

1

J2

6510000330

Connector NR-DS

1

MF1

2710000690

Fan AFB0812HHB

1

MP1

8010018180

2355 chassis

1

MP2

8510012990

2355 pa cover

1

MP3

8510013600

2355 A-PLL cover

1

MP5

8930053920

2355 fan holder

1

MP6

8930049610

2240 unit holder

2

MP9

8930052450

2355 earth spring

1

MP10

8930052450

2355 earth spring

1

MP12

8930048520

2156 clip

1

MP13

8930030770

1428 clip

1

MP31

8810008660

Screw PH BT M3 X 8 NI-ZU

14

MP32

8810008660

Screw PH BT M3 X 8 NI-ZU

6

MP33

8810008660

Screw PH BT M3 X 8 NI-ZU

5

MP34

8810008660

Screw PH BT M3 X 8 NI-ZU

8

MP35

8810008660

Screw PH BT M3 X 8 NI-ZU

6

MP36

8810008660

Screw PH BT M3 X 8 NI-ZU

2

MP37

8810009650

Screw FH BT M3 X 8 NI-ZU

4

MP38

8810003960

Setscrew A M2.6 X 5

4

MP39

8810000420

Screw PH M4 X 18

4

MP40

8810008660

Screw PH BT M3 X 8 NI-ZU

2

MP41

8810008660

Screw PH BT M3 X 8 NI-ZU

2

MP42

8820000530

Bolt M4 X 8 NI

1

MP43

8850000140

Flat washer M4 NI BS

2

MP44

8850000430

Spring washer M4 NI

1

MP45

8810009040

Setscrew H M2.6 X 10 NI

2

MP46

8810009040

Setscrew H M2.6 X 10 NI

2

MP47

8810009040

Setscrew H M2.6 X 10 NI

2

MP48

8810009040

Setscrew H M2.6 X 10 NI

2

MP49

8810009040

Setscrew H M2.6 X 10 NI

2

MP50

8810009040

Setscrew H M2.6 X 10 NI

1

MP51

8810003170

Setscrew A M3 X 8

1

MP52

8310050190

2355 ANT plate

1

MP53

8310050180

2355 D-SUB plate

1

MP54

8930041830

Sponge (ER)

1

MP55

8930001170

Earth spring (A)

1

MP56

8930031760

Rubber sheet (N)

5

MP57

8930005450

Insulation sheet (F)

1

MP58

8930049770

Sponge (GF)

2

MP59

8930054520

Shield sponge (E)

1

MP60

8930027890

946 earth spring

1

MP61

8930001450

Sponge (P)

1

* Refer to Section 9 BOARD LAYOUTS.

7 - 1

Image 70
Contents Service Manual Repair Notes IntroductionOrdering Parts EURTable of Contents Specifications GeneralReceiver Main and PLL Units SectionInside Views 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 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 7 1LO PLL Circuit PLL Circuits8 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 HPF OFF DeviationLPF UX-910 Adjustments C332 CP321CP322 R13Power SET APCPre-setting for APC adjustment Front Unit Section Parts ListDisplay Board Resistor ERA3YED VR-A Board Func 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.