IcomメーカーIC-910Hの使用説明書/サービス説明書
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SER VICE MANU AL VHF/UHF ALL MODE TRANSCEIVER i910H.
INTRODUCTION This service manual describes the latest service information for the IC-910H VHF/UHF ALL MODE TRANSCEIVER at the time of publication. VERSION No.
SECTION 1 SPECIFICA TIONS SECTION 2 INSIDE VIEWS 2 - 1 IC-910H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1 2 - 2 UX-910 (OPTIONAL UNIT) . . . . . .
SECTION 1 SPECIFICA TIONS 1 - 1 ■ GENERAL • Frequency coverage : (Unit: MHz) * 1 Optional UX-910 is installed. * 2 Guaranteed range is 144.0–148.0 MHz. * 3 Guaranteed range is 430.0–450.0 MHz. * 4 Guaranteed range is 1240.0–1300.0 MHz. • Mode : USB, LSB, CW , FM, FM-N* *Not available in 1200 MHz band • No.
■ RECEIVER • Receive system : VHF SSB, CW Single conversion superheterodyne FM Double conversion superheterodyne UHF SSB, CW Double conversion superheterodyne FM T riple conversion superheterodyne • Intermediate frequencies : (Unit: MHz) • Sensitivity : SSB, CW (10 dB S/N) Less than 0.
2 - 1 SECTION 2 INSIDE VIEWS 2-1 IC-910H • MAIN AND PLL UNITS DDS IC (IC701: SC-1287) DDS gate arra y (IC131: SC-1246A) DDS gate arra y (IC331: SC-1246A) PLL unit 144 MHz band VCO circuit 430 MHz band VCO circuit Reference oscillator (X512: CR-452 30.
2 - 2 • P A UNIT TX balanced mixer Q501, Q502: 2SK302 D502: 1SV286 RX balanced mixer (Q511, Q512: 2SK1740) Pre-amplifier (Q507: 3SK177) 145 MHz power amplifier (Q651, Q652: 2SC5152) TX/RX switching .
2 - 3 2-2 UX-910 (OPTIONAL UNIT) • TOP VIEW • BOTTOM VIEW P ower module IC (IC21: M57762-02) 1st LO VCO circuit PLL IC (IC501: TB31242) DDS IC (IC661: SC-1246A) RF pre-amplifier (Q281: NE34018) P .
SECTION 3 DISASSEMBL Y AND OPTION INSTRUCTIONS • Opening the transceiver ’ s case Follow the case and cover opening procedures shown here when you want to install an optional unit or adjust the internal units, etc. q Remove the 5 screws from the top of the trans- ceiver and 4 screws from the sides, then lift up the top cover .
• Opening the P A unit cover q Remove the top cover as shown in the diagram on p. 3- 1. w Remove 8 screws and grounding plate from the P A unit cover . e Remove fastening tape from the inside power cable. grounding plate • FL-132/FL-133 CW NARROW FIL TER q Remove the bottom cover as shown in the diagram on p.
• UT -102 VOICE SYNTHESIZER UNIT q Remove the bottom cover as shown in the diagram on p. 3-1. • Remove the UX-910 if you have installed it. (p. 3-1) w Remove the protective paper attached to the bottom of the UT -102 to expose the adhesive strip. e Plug UT -102 into J1801 on the MAIN unit as shown in the diagram at right.
• CR-293 HIGH ST ABILITY CR YST AL UNIT q Remove the bottom cover as shown in the diagram on p. 3-1. • Remove the UX-910 if you have installed it. (p.
SECTION 4 CIRCUIT DESCRIPTION 4 - 1 4-1 RECEIVER CIRCUIT Note: [Main]=Main band, [Sub]=Sub band 4-1-1 VHF TRANSMIT/RECEIVE SWITCHING CIRCUIT (P A UNIT) Received signals from the antenna connector (CHA.
4 - 2 4-1-6 10 MHz IF CIRCUIT (MAIN UNIT) The 10 MHz IF signal from the mixer circuit is passed through a monolithic filter (Fl51 [Main], Fl651 [Sub]) to sup- press out-of-band signals. The filtered signal is amplified at the IF amplifier (Q51 [Main], Q651 [Sub]).
4 - 3 4-1-1 1 NOISE BLANKER CIRCUIT (MAIN UNIT) The noise blanker circuit detects pulse-type noises, and stops IF amplifier operation during detection. A portion of the 10 MHz IF signal from the bandpass filter (FI51 [Main], FI651 [Sub]) is amplified at the noise amplifier circuit (Q102, IC101, Q101 [Main], Q702, IC701, Q701 [Sub]).
4 - 4 While in SSB mode, the amplified signals from the buffer amplifier (Q1651) are then applied to the balanced modula- tor (IC201). While in AM/FM mode, the amplified signals from the buffer amplifier (Q1651) are applied to the limiter amplifier (IC1651b) and splatter filter (IC1651a).
4 - 5 low-pass filter and UHF signal are high-pass filter , and then applied to the VHF and UHF power amplifier circuit sepa- rately . 4-2-7 POWER AMPLIFIER CIRCUIT (P A UNIT) The power amplifier circuit amplifies the RF signals to the specified output power .
4 - 6 The passed signals are then applied to the RF amplifier cir- cuit. 4-4-2 1200 MHz RF CIRCUIT (for RX) Received signals from the transmit/receive switching circuit are passed through the high-pas.
SECTION 5 ADJUSTMENT PROCEDURES 5 - 1 4-1 PREP ARA TION BEFORE SARVICING ■ REQUIRED TEST EQUIPMENT DC power supply RF power meter (terminated type) Frequency counter RF voltmeter FM deviation meter .
5 - 2 5-2 PLL ADJUSTMENTS 30.2 MHz LEVEL REFERENCE FREQUENCY 144M LOCK VOL T AGE 440M LOCK VOL T AGE MAIN BFO LEVEL SUB BFO LEVEL ADJUSTMENT ADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT V ALUE POINT UN.
5 - 3 X512 Ref erence frequency adjustment C402 430M lock v oltage adjustment P251 144M LO le vel check point L193 144M lock v oltage adjustment J541 30.
*This output level of a standard signal generator (SSG) is indicated as SSG ’ s open circuit. 5 - 4 5-4 RECEIVER ADJUSTMENTS Receiver adjustments must be performed after software adjustment (0) and (1). SUB band must be OFF when adjusting MAIN band, or main AF volume (max.
5 - 5 L521 144M receiver peak/gain adjustment P501 144M receiver peak/gain check point R547 L52 L51 144M peak adjustment f or main band L53 • P A UNIT • MAIN UNIT L353 L352 L851 R857 144M peak adj.
*This output level of a standard signal generator (SSG) is indicated as SSG ’ s open circuit. RECEIVER ADJUSTMENTS (continued) 430 M PEAK (MAIN BAND) 430 M PEAK (SUB BAND) 430 M TOT AL GAIN (MAIN BAND) NOISE BLANKER (MAIN BAND) (SUB BAND) 1 1 1 2 1 2 3 4 • Display frequency : 435.
5 - 7 L283 L22 L23 430M peak adjustment f or main band L282 • P A UNIT • MAIN UNIT R61 430M total gain adjustment f or main band CP701 Noise blank er check point f or sub band Noise blank er adjus.
P A UNIT PRESETTING IDLING CURRENT (for 144 M) (for 430 M) RF PEAK (for 430 M) (for 144 M) IF PEAK CARRIER SUPPRESSION • Preset R131, R135, R150, R650 (P A unit) to max. counter clockwise. • Preset R3, R138, R503 (P A unit) to center position. • Preset C154, C659 (P A unit) to center position as illustration at right.
5 - 9 Idling current adjustment f or 144M R135 R131 R138 • P A UNIT • MAIN UNIT R3 P A unit pre-setting P1 RF peak pre-setting f or 430M R150 Idling current adjustment f or 430M IF peak adjustment.
5 - 10 IF TOT AL GAIN TOT AL GAIN (for 144 M) (for 430 M) Ic APC DRIVE LEVEL LO LEAK (for 144 M) TRANSMITTER ADJUSTMENTS (continued) ADJUSTMENT ADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT V ALUE POINT.
5 - 11 • P A UNIT • MAIN UNIT R3 T otal gain adjustment f or 430M IF total gain adjustment R3 IC APC adjustment IC APC pre-setting R1613 CP1613 Drive le vel adjustment R202 IF total gain /Drive le.
*This output level of a standard signal generator (SSG) is indicated as SSG ’ s open circuit. 5 - 12 5-6 SOFTW ARE ADJUSTMENT ENTERING SOFTW ARE ADJUSTMENT ADJUSTMENT ITEM (0) VOLUME CENTER PLL UNLO.
*This output level of a standard signal generator (SSG) is indicated as SSG ’ s open circuit. 5 - 13 SOFTW ARE ADJUSTMENT (continued) ADJUSTMENT ITEM (2) S-METER (MAIN BAND) (SUB BAND) ADJUSTMENT ADJUSTMENT CONDITION DISPLA Y OPERA TION • Enter software adjustment mode (Refer page 5-12).
*This output level of a standard signal generator (SSG) is indicated as SSG ’ s open circuit. 5 - 14 SOFTW ARE ADJUSTMENT (continued) S-METER (SUB BAND) ADJUSTMENT ITEM (3) NOISE SQL (MAIN BAND) (SUB BAND) ADJUSTMENT ADJUSTMENT CONDITION DISPLA Y OPERA TION • Set an SSG as : Frequency : 146.
*This output level of a standard signal generator (SSG) is indicated as SSG ’ s open circuit. 5 - 15 SOFTW ARE ADJUSTMENT (continued) ADJUSTMENT ITEM (4) CENTER (MAIN BAND) ADJUSTMENT ITEM (5) FIL T.
*This output level of a standard signal generator (SSG) is indicated as SSG ’ s open circuit. 5 - 16 SOFTW ARE ADJUSTMENT (continued) ADJUSTMENT ITEM (6) RF PEAK ADJUSTMENT ITEM (7) TX POWER/ METER (for 144 M) (for 1200 M) ADJUSTMENT ADJUSTMENT CONDITION DISPLA Y OPERA TION • Enter software adjustment mode (Refer page 5-12).
5 - 17 SOFTW ARE ADJUSTMENT (continued) TX POWER/ METER (for 430 M) ADJUSTMENT ITEM (8) DEVIA TION ADJUSTMENT ADJUSTMENT CONDITION DISPLA Y OPERA TION • Connect an RF power meter to [UHF ANT] connector . • Enter software adjustment mode (Refer page 5-12).
*This output level of a standard signal generator (SSG) is indicated as SSG ’ s open circuit. 5 - 18 5-7 UX-910 ADJUSTMENTS 2ND LO LOCK VOL T AGE 1ST LO LOCK VOL T AGE RECEIVER GAIN A TT GAIN IDLING.
5 - 19 CP501 1st LO lock v oltage check point C332 P ower ballance adjustment CP322 Idling check point CP321 Idling check point R13 Idling adjustment R67 APC adjustment R83 T ransmitter gain adjustmen.
*This output level of a standard signal generator (SSG) is indicated as SSG ’ s open circuit. 5 - 20 UX-910 ADJUSTMENTS (continued) APC (POWER SET) ADJUSTMENT ADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT V ALUE POINT UNIT LOCA TION UNIT ADJUST 1 2 3 4 5 • Display frequency : 1270.
5 - 21 R67 APC adjustment CP15 APC check point CP311 Pre-setting f or APC adjustment CP401 APC check point R61 APC adjustment R37 APC adjustment.
[DISPLA Y BOARD] 6-1 IC-910 [FRONT UNIT] S.=Surface mount W1 8900006700 CABLE OPC-645 (N:6 L:60) W2 8900006700 CABLE OPC-645 (N:6 L:60) W3 8900006700 CABLE OPC-645 (N:6 L:60) W4 8900009240 CABLE OPC-909 (P=1 N=10 L=1 10) W5 8900006700 CABLE OPC-645 (N:6 L:60) W6 8900006700 CABLE OPC-645 (N:6 L:60) EP1 6910012480 E.
[DISPLA Y BOARD] [DISPLA Y BOARD] S.=Surface mount R57 7030003640 S.RESISTOR ERJ3GEYJ 473 V (47 k Ω ) R58 7030003590 S.RESISTOR ERJ3GEYJ 183 V (18 k Ω ) R59 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 k Ω ) R60 7030003480 S.RESISTOR ERJ3GEYJ 222 V (2.
S.=Surface mount [DISPLA Y BOARD] [DISPLA Y BOARD] C56 4030006860 S.CERAMIC C1608 JB 1H 102K-T -A C57 4030012610 S.CERAMIC C2012 JB 1C 474K-T -A C71 4030006860 S.CERAMIC C1608 JB 1H 102K-T -A C72 4030006860 S.CERAMIC C1608 JB 1H 102K-T -A C73 4030006860 S.
[PLL UNIT] [RIT BOARD] S.=Surface mount R2 7210003090 V ARIABLE RV -316 (RK0972210C05 10KB/10KB) J1 6510022570 S.CONNECTOR 06FMN-BMTTR-A-TBT EP1 0910052661 PCB B 5461A L1 6200003950 S.COIL HF50ACC 322513-T R1 7030006070 S.RESISTOR ERJ12YJ101U (100 Ω ) R2 7030006070 S.
S.=Surface mount [PLL UNIT] [PLL UNIT] L424 6200005720 S.COIL ELJRE 33NG-F L425 6200005700 S.COIL ELJRE 22NG-F L471 6200005010 S.COIL NL 252018T-100J L473 6200005720 S.COIL ELJRE 33NG-F L474 6200001830 S.COIL NL 322522T-100J L51 1 6200001830 S.COIL NL 322522T-100J L541 6200004950 S.
[PLL UNIT] [PLL UNIT] S.=Surface mount R427 7030003300 S.RESISTOR ERJ3GEYJ 680 V (68 Ω ) R474 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 k Ω ) R475 7030003290 S.RESISTOR ERJ3GEYJ 560 V (56 Ω ) R476 7030003370 S.RESISTOR ERJ3GEYJ 271 V (270 Ω ) R477 7030003230 S.
S.=Surface mount [PLL UNIT] [PLL UNIT] C192 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A C193 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A C194 4030006910 S.CERAMIC C1608 CH 1H 0R5C-T-A C196 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A C198 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A C213 4030007060 S.
[MAIN UNIT] [PLL UNIT] S.=Surface mount C705 4030007160 S.CERAMIC C1608 CH 1H 181J-T-A C708 40300071 10 S.CERAMIC C1608 CH 1H 680J-T-A C709 4030006900 S.CERAMIC C1608 JB 1E 103K-T-A C710 4030006900 S.CERAMIC C1608 JB 1E 103K-T-A C71 1 4030006900 S.CERAMIC C1608 JB 1E 103K-T-A C713 4030006880 S.
S.=Surface mount [MAIN UNIT] [MAIN UNIT] Q707 1590001660 S.TRANSISTOR XP4312 (TX) Q751 1590001660 S.TRANSISTOR XP4312 (TX) Q752 1590001660 S.TRANSISTOR XP4312 (TX) Q753 1590001660 S.TRANSISTOR XP4312 (TX) Q801 1540000550 S.TRANSISTOR 2SD1664 T100Q Q804 1540000470 S.
[MAIN UNIT] [MAIN UNIT] S.=Surface mount 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.
S.=Surface mount [MAIN UNIT] [MAIN UNIT] R364 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω ) R365 7030003550 S.RESISTOR ERJ3GEYJ 822 V (8.2 k Ω ) R368 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω ) R369 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω ) R371 7030003490 S.
[MAIN UNIT] [MAIN UNIT] S.=Surface mount R915 7030003520 S.RESISTOR ERJ3GEYJ 472 V (4.7 k Ω ) R916 7030003780 S.RESISTOR ERJ3GEYJ 684 V (680 k Ω ) R927 7030003810 S.RESISTOR ERJ3GEYJ 125 V (1.2 M Ω ) R951 7030003500 S.RESISTOR ERJ3GEYJ 332 V (3.
S.=Surface mount [MAIN UNIT] [MAIN UNIT] R1679 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 k Ω ) R1680 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 k Ω ) R1681 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 k Ω ) R1682 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 k Ω ) R1685 7030003680 S.
[MAIN UNIT] [MAIN UNIT] S.=Surface mount 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.
S.=Surface mount [MAIN UNIT] [MAIN UNIT] C732 4030007140 S.CERAMIC C1608 CH 1H 121J-T-A C751 4030006900 S.CERAMIC C1608 JB 1E 103K-T-A C752 4030006900 S.CERAMIC C1608 JB 1E 103K-T-A C753 4030006900 S.CERAMIC C1608 JB 1E 103K-T-A C754 4030006900 S.CERAMIC C1608 JB 1E 103K-T-A C756 4030006900 S.
[MAIN UNIT] [MAIN UNIT] S.=Surface mount C1667 403001 1600 S.CERAMIC C1608 JB 1C 104KT -N C1668 403001 1600 S.CERAMIC C1608 JB 1C 104KT -N C1669 4510004440 S.ELECTROL YTIC ECEV1HA010SR C1670 403001 1600 S.CERAMIC C1608 JB 1C 104KT -N C1671 4510004630 S.
S.=Surface mount [P A UNIT] [P A UNIT] IC40 1 1 10004080 S.IC µ PC2709T -E3 IC200 1 1 10003320 S.IC µPC2710T-E3 IC240 1 1 10003320 S.IC µPC2710T-E3 IC501 1 1 10004080 S.IC µPC2709T-E3 IC502 1 1 10003320 S.IC µPC2710T-E3 IC701 1 180001 1 10 S.IC PQ20VZ51 Q1 1560000270 S.
[P A UNIT] [P A UNIT] S.=Surface mount L71 6200002630 S.COIL NL 252018T-R10J L72 6200002840 S.COIL NL 252018T-R22J L97 6200005680 S.COIL ELJRE 15NG-F L102 6200004960 S.COIL NL 252018T-R33J L103 6200008570 S.COIL LQN21A 6N8D04 L1 17 6200008910 S.COIL 1812CS-122XKBC L1 18 6200008910 S.
S.=Surface mount [P A UNIT] [P A UNIT] R108 7030008190 S.RESISTOR ERJ12YJ330U (33 Ω ) R1 10 7030003290 S.RESISTOR ERJ3GEYJ 560 V (56 Ω ) R1 1 1 7030003400 S.RESISTOR ERJ3GEYJ 471 V (470 Ω ) R1 17 7030006070 S.RESISTOR ERJ12YJ101U (100 Ω ) R1 18 7030003560 S.
[P A UNIT] [P A UNIT] S.=Surface mount R585 7030003230 S.RESISTOR ERJ3GEYJ 180 V (18 Ω ) R586 7030003370 S.RESISTOR ERJ3GEYJ 271 V (270 Ω ) R587 7030003420 S.RESISTOR ERJ3GEYJ 681 V (680 Ω ) R588 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k Ω ) R589 7030003280 S.
S.=Surface mount [P A UNIT] [P A UNIT] C139 403001 1210 S.CERAMIC GRM42-6 CH 330J 500PT C140 4030016580 S.CERAMIC GRH1 1 1 CH 390J 500PT C141 4030016580 S.CERAMIC GRH1 1 1 CH 390J 500PT C142 4030004950 S.CERAMIC C2012 CH 1H 470J-T-A C143 4030004720 S.
[P A UNIT] [P A UNIT] S.=Surface mount C307 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A C308 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A C309 4510007540 ELECTROL YTIC ECA 1CHG 471 C310 4030007170 S.CERAMIC C1608 CH 1H 221J-T-A C31 1 4030006880 S.CERAMIC C1608 JB 1H 472K-T-A C312 403001 1600 S.
S.=Surface mount [P A UNIT] [P A UNIT] C607 4030007070 S.CERAMIC C1608 CH 1H 330J-T-A C608 4030009920 S.CERAMIC C1608 CH 1H 050B-T-A C609 4030007030 S.CERAMIC C1608 CH 1H 150J-T-A C610 4030007020 S.CERAMIC C1608 CH 1H 120J-T-A C61 1 4030007030 S.CERAMIC C1608 CH 1H 150J-T-A C612 4030009920 S.
[DRV BOARD] [P A UNIT] S.=Surface mount F300 5210000130 FUSE FGB 4A F301 5220000230 HOLDER S-N5054 #01 F302 5220000230 HOLDER S-N5054 #01 W3 7030003860 S.JUMPER ERJ3GE JPW V W5 7030003860 S.JUMPER ERJ3GE JPW V W7 7030003860 S.JUMPER ERJ3GE JPW V W60 7030008240 S.
S.=Surface mount [MAIN UNIT] — UX-910 6-2 UX-910 [MAIN UNIT] IC21 1 150002020 IC M57762-02 IC31 1 1 10001220 S.IC BA4558F T1 IC1 1 1 1 1 10004080 S.IC µ PC2709T -E3 IC131 1 1 10005150 S.IC µPC8163TB-E3 IC141 1 1 10001890 S.IC µPC1678G-E2 IC161 1 180002040 REG BA09T IC162 1 180001070 S.
[MAIN UNIT] — UX-910 [MAIN UNIT] — UX-910 S.=Surface mount L285 6200006050 S.COIL LQP1 1A 6N8C00 L286 6200006020 S.COIL LQP1 1A 3N9C00 L287 6200006030 S.COIL LQP1 1A 4N7C00 L289 6200006100 S.COIL LQP1 1A 18NG00 L31 1 2040000490 COIL EXC-ELDR25C L501 6200001830 S.
S.=Surface mount [MAIN UNIT] — UX-910 [MAIN UNIT] — UX-910 R288 7310002670 S.TRIMMER RV -143 (RH03A3AS2) 471 R301 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω ) R31 1 7030003520 S.RESISTOR ERJ3GEYJ 472 V (4.7 k Ω ) R312 7030003510 S.RESISTOR ERJ3GEYJ 392 V (3.
[MAIN UNIT] — UX-910 [MAIN UNIT] — UX-910 S.=Surface mount C65 403001 1600 S.CERAMIC C1608 JB 1C 104KT-N C66 4030006850 S.CERAMIC C1608 JB 1H 471K-T-A C67 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A C69 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A C70 4030006860 S.
S.=Surface mount [MAIN UNIT] — UX-910 [MAIN UNIT] — UX-910 C287 4030006880 S.CERAMIC C1608 JB 1H 472K-T-A C288 4030009530 S.CERAMIC C1608 CH 1H 030B-T-A C289 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A C290 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A C292 4030006860 S.
[MAIN UNIT] — UX-910 [MAIN UNIT] — UX-910 S.=Surface mount 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 403001 1600 S.CERAMIC C1608 JB 1C 104KT-N C735 4030006860 S.
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 FU.
MP1 8930014140 Earth spring (D) 1 MP7* 8510012310 2157 DBM case 1 MP8* 8510013620 2355 A-filter case 1 MP9* 8510002020 MIX shield case 1 MP10* 8510012310 2157 DBM case 1 MP1 1* 8510013390 2355 MIX cas.
8 - 1 • TRANSISTORS AND FET’S SECTION 8 SEMI-CONDUCTOR INFORMA TION B E C B E C B E C B C E B E C B E C B B E E C C B E C B E C B E C B E E E E C B E C B E C B C E B E C B E C B E C B E C B E E E .
8 - 2 G1 G2 S D G1 G2 S D D S G2 G1 B E C B E C B E C B E C B E C B E C B E C B1 E B2 C1 C2 B E C E1 B1 B2 C1 C2 E1 C2 B1 C1 E2 B2 E1 C2 B1 C1 E2 B2 E1 C2 B1 C1 E2 B2 G S D S G S S D G S S S S D G S D.
8 - 3 • DIODES C A1 A2 A C C A1 A2 A pink C A C A1 A2 C1 C2 NC A C C A1 A2 A C A1 C2 C1 A1 C2 C1 A C A C AC AC AC AC AC AC AC AC AC AC AC red dot AC 1SS301 1SS355 1SS375-TL 1SS385 1SV214 1SV217 1SV2.
9 - 1 9-1 VR-A BOARD SECTION 9 BOARD LA YOUTS • TOP VIEW GND J1 26 1 to DISPLA Y board J2 5 MA VR NC NC MSVR +5V • TOP VIEW GND J1 26 1 to DISPLA Y board J10 5 RIVR NC NC SFVR +5V 9-2 VR-B BOARD .
9 - 2 • BOTTOM VIEW (RIT BOARD) • BOTTOM VIEW (VR-A BOARD) • BOTTOM VIEW (VR-B BOARD).
Communication Equipment Himmelgeister Str . 100, D-40225 Düsseldorf , Germany Phone : 0211 346047 Fax : 0211 333639 URL : http://www .icomeurope.com Unit 9, Sea St., Herne Bay , Kent, CT6 8LD , U.K. Phone : 01227 741741 Fax : 01227 741742 URL : http://www .
1-1-32, Kamiminami, Hirano-ku Osaka 547-0003, Japan S-13714HZ-C1 © 2001 Icom Inc..
デバイスIcom IC-910Hの購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
Icom IC-910Hをまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはIcom IC-910Hの技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Icom IC-910Hの取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Icom IC-910Hで得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Icom IC-910Hを既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はIcom IC-910Hの不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Icom IC-910Hに関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちIcom IC-910Hデバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
