Manuale d’uso / di manutenzione del prodotto IC-910H del fabbricante Icom
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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..
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Icom IC-910H è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Icom IC-910H - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Icom IC-910H imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Icom IC-910H ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Icom IC-910H, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Icom IC-910H.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Icom IC-910H. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Icom IC-910H insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
