1. DL manuals
  2. Icom
  3. Transceiver
  4. IC-910H
  5. Service Manual

Icom IC-910H Service Manual

Manual is about: Service+Manual+IC-910H

Summary of IC-910H

  • Page 1

    Service manual vhf/uhf all mode transceiver i910h from the n3ujj.Com document library from the n3ujj.Com document library.

  • Page 2

    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. #02 #04 #06 #07 version europe australia u.S.A. Korea symbol eur aus usa-1 kor to upgrade quality, any electrical or mechanical parts and int...

  • Page 3

    Section 1 specifications section 2 inside views 2 - 1 ic-910h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1 2 - 2 ux-910 (optional unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

  • Page 4: Section 1 Specifications

    Section 1 specifications 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 ...

  • Page 5

    ■ receiver • receive system : vhf ssb, cw single conversion superheterodyne fm double conversion superheterodyne uhf ssb, cw double conversion superheterodyne fm triple conversion superheterodyne • intermediate frequencies : (unit: mhz) • sensitivity : ssb, cw (10 db s/n) less than 0.11 µv fm (12 db...

  • Page 6: Section 2

    2 - 1 section 2 inside views 2-1 ic-910h • main and pll units dds ic (ic701: sc-1287) dds gate arr a y (ic131: sc-1246a) dds gate arr a y (ic331: sc-1246a) pll unit 144 mhz band vco circuit 430 mhz band vco circuit ref erence oscillator (x512: cr-452 30.2 mhz) dr iv er ic (ic1: b u4094bcf) dds ic (i...

  • Page 7

    2 - 2 • pa unit tx balanced mix er q501, q502: 2sk302 d502: 1sv286 rx balanced mix er (q511, q512: 2sk1740) pre-amplifier (q507: 3sk177) 145 mhz po w er amplifier (q651, q652: 2sc5152) tx/rx s witching rela y (rl700: ae5349) v ar istor-a board v ar istor-c board 440 mhz po w er amplifier (q151, q152...

  • Page 8

    2 - 3 2-2 ux-910 (optional unit) • top view • bottom view power module ic (ic21: m57762-02) 1st lo vco circuit pll ic (ic501: tb31242) dds ic (ic661: sc-1246a) rf pre-amplifier (q281: ne34018) power supply circuit for ag-1200 q72: dtc144eu q73, q74: 2sc2712 rf amplifier (q271: 2sc5454) ygr amplifier...

  • Page 9: Section 3

    Section 3 disassembly 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, the...

  • Page 10

    • opening the pa 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 pa unit cover. E remove fastening tape from the inside power cable. Grounding plate • fl-132/fl-133 cw narrow filter q remove the bottom cover as shown in the diagram...

  • Page 11

    • 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 t...

  • Page 12

    • cr-293 high stability crystal 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 6 screws from the pll shield cover, then lift up the pll shield cover. Pll shield cover e disconnect the ffc (flexible flat cable) from th...

  • Page 13

    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 (pa unit) received signals from the antenna connector (chassis; j1) are passed through the low-pass filter (l723 – l721, c728 – c726, c728) then applied to the...

  • Page 14

    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]). The if amplifier provides 20 db gai...

  • Page 15

    4 - 3 4-1-11 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 ...

  • Page 16

    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). The signal...

  • Page 17

    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 (pa unit) the power amplifier circuit amplifies the rf signals to the specified output power. (1) vhf power amplifier circuit the rf sign...

  • Page 18

    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-pass filter (l285 – l287, l289, c297 – c300) and pre-amplifier (q281) and are applied to the rf amplifi...

  • Page 19

    Section 5 adjustment procedures 5 - 1 4-1 preparation before sarvicing ■ required test equipment dc power supply rf power meter (terminated type) frequency counter rf voltmeter fm deviation meter distortion meter oscilloscope digital multimeter audio generator standard signal generator (ssg) ac mill...

  • Page 20

    5 - 2 5-2 pll adjustments 30.2 mhz level reference frequency 144m lock voltage 440m lock voltage main bfo level sub bfo level adjustment adjustment adjustment condition measurement value point unit location unit adjust 1 1 2 1 2 3 1 2 3 1 2 • display frequency: any • receiving • display frequency: a...

  • Page 21

    5 - 3 x512 reference frequency adjustment c402 430m lock voltage adjustment p251 144m lo level check point l193 144m lock voltage adjustment j541 30.2 mhz level check point cp300 430m lock voltage check point p421 430m lo level check point l551 j51 cp51 fm tx-lo frequency check point j52 fm tx-lo fr...

  • Page 22

    *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.Counter clockwise) and sql vo...

  • Page 23

    5 - 5 l521 144m receiver peak/gain adjustment p501 144m receiver peak/gain check point r547 l52 l51 144m peak adjustment for main band l53 • pa unit • main unit l353 l352 l851 r857 144m peak adjustment for sub band 144m total gain adjustment for sub band j51 144m receiver peak/gain pre-setting l852 ...

  • Page 24

    *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 total gain (main band) noise blanker (main band) (sub band) 1 1 1 2 1 2 3 4 • display frequency: 435.0200 mhz • mode : fm • ...

  • Page 25

    5 - 7 l283 l22 l23 430m peak adjustment for main band l282 • pa unit • main unit r61 430m total gain adjustment for main band cp701 noise blanker check point for sub band noise blanker adjustment for sub band l704 l703 430m peak adjustment for sub band l280 l281 cp851 430m peak check point for main ...

  • Page 26

    Pa 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 (pa unit) to max. Counter clockwise. • preset r3, r138, r503 (pa unit) to center position. • preset c154, c659 (pa unit) to center position as illustr...

  • Page 27

    5 - 9 idling current adjustment for 144m r135 r131 r138 • pa unit • main unit r3 pa unit pre-setting p1 rf peak pre-setting for 430m r150 idling current adjustment for 430m if peak adjustment l3 l2 carrier suppression adjustment r215 r206 c154 rf peak adjustment for 430m l2 l1 c659 rf peak adjustmen...

  • Page 28

    5 - 10 if total gain total gain (for 144 m) (for 430 m) ic apc drive level lo leak (for 144 m) transmitter adjustments (continued) adjustment adjustment adjustment condition measurement value point unit location unit adjust 1 1 2 3 1 2 1 • display frequency: any • mode : usb • mic gain : center • di...

  • Page 29

    5 - 11 • pa unit • main unit r3 total gain adjustment for 430m if total gain adjustment r3 ic apc adjustment ic apc pre-setting r1613 cp1613 drive level adjustment r202 if total gain /drive level check point j51 r503 total gain adjustment for 144m r504 lo leak adjustment for 144m p501 if total gain ...

  • Page 30

    *this output level of a standard signal generator (ssg) is indicated as ssg’s open circuit. 5 - 12 5-6 software adjustment entering software adjustment adjustment item (0) volume center pll unlock adjustment item (1) tuned bpf (for 144 m) (for 430 m) adjustment adjustment condition display operation...

  • Page 31

    *this output level of a standard signal generator (ssg) is indicated as ssg’s open circuit. 5 - 13 software adjustment (continued) adjustment item (2) s-meter (main band) (sub band) adjustment adjustment condition display operation • enter software adjustment mode (refer page 5-12). • push [2] key t...

  • Page 32

    *this output level of a standard signal generator (ssg) is indicated as ssg’s open circuit. 5 - 14 software adjustment (continued) s-meter (sub band) adjustment item (3) noise sql (main band) (sub band) adjustment adjustment condition display operation • set an ssg as : frequency : 146.0200 mhz leve...

  • Page 33

    *this output level of a standard signal generator (ssg) is indicated as ssg’s open circuit. 5 - 15 software adjustment (continued) adjustment item (4) center (main band) adjustment item (5) filter calibration (main band) (sub band) adjustment adjustment condition display operation • connect an ssg t...

  • Page 34

    *this output level of a standard signal generator (ssg) is indicated as ssg’s open circuit. 5 - 16 software adjustment (continued) adjustment item (6) rf peak adjustment item (7) tx power/ meter (for 144 m) (for 1200 m) adjustment adjustment condition display operation • enter software adjustment mo...

  • Page 35

    5 - 17 software adjustment (continued) tx power/ meter (for 430 m) adjustment item (8) deviation adjustment adjustment condition display operation • connect an rf power meter to [uhf ant] connector. • enter software adjustment mode (refer page 5-12). • push [8] key to enter the deviation adjust- men...

  • Page 36

    *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 voltage 1st lo lock voltage receiver gain att gain idling power ballance transmitter gain adjustment adjustment adjustment condition measurement value point unit loca...

  • Page 37

    5 - 19 cp501 1st lo lock voltage check point c332 power ballance adjustment cp322 idling check point cp321 idling check point r13 idling adjustment r67 apc adjustment r83 transmitter gain adjustment r224 receiver gain adjustment cp15 apc check point cp701 2nd lo lock voltage check point cp311 receiv...

  • Page 38

    *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 value point unit location unit adjust 1 2 3 4 5 • display frequency: 1270.0000 mhz • mode : cw • co...

  • Page 39

    5 - 21 r67 apc adjustment cp15 apc check point cp311 pre-setting for apc adjustment cp401 apc check point r61 apc adjustment r37 apc adjustment from the n3ujj.Com document library from the n3ujj.Com document library.

  • Page 40: Section 6

    [display 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=110) w5 8900006700 cable opc-645 (n:6 l:60) w6 8900006700 cable opc-645 (n:6 l:60) ep1...

  • Page 41

    [display board] [display 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 (2.2 k Ω) r61 7030003640 s.Resistor erj3geyj 473 v (47 k Ω)...

  • Page 42

    S.=surface mount [display board] [display 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.Ceramic c1608 jb 1h 102k-t-a c74 4030006860 s.Cera...

  • Page 43

    [pll unit] [rit board] s.=surface mount r2 7210003090 variable 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.Resistor erj12yj101u (100 Ω) c1 403...

  • Page 44

    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 l511 6200001830 s.Coil nl 322522t-100j l541 6200004950 s.Coil nl 252018t-1r...

  • Page 45

    [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.Resistor erj3geyj 180 v (18 Ω) r478 70300033...

  • Page 46

    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.Ceramic ...

  • Page 47

    [main unit] [pll unit] s.=surface mount c705 4030007160 s.Ceramic c1608 ch 1h 181j-t-a c708 4030007110 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 c711 4030006900 s.Ceramic c1608 jb 1e 103k-t-a c713 4030006880 s.Ceramic...

  • Page 48

    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.Transistor 2sd1801s-tl q805 159000...

  • Page 49

    [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.Coil nl 252018t-101j l951 6200002040 s.Co...

  • Page 50

    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.Resistor erj3geyj 272 v (2.7 k Ω) r372 ...

  • Page 51

    [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 (3.3 k Ω) r952 7030003740 s.Resistor erj3geyj 334 v (330 k Ω)...

  • Page 52

    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.Resistor erj3geyj 104 v (100 ...

  • Page 53

    [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.Ceramic c1...

  • Page 54

    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.Cerami...

  • Page 55

    [main unit] [main unit] s.=surface mount c1667 4030011600 s.Ceramic c1608 jb 1c 104kt-n c1668 4030011600 s.Ceramic c1608 jb 1c 104kt-n c1669 4510004440 s.Electrolytic ecev1ha010sr c1670 4030011600 s.Ceramic c1608 jb 1c 104kt-n c1671 4510004630 s.Electrolytic ecev1ca100sr c1672 4030011600 s.Ceramic c...

  • Page 56

    S.=surface mount [pa unit] [pa unit] ic40 1110004080 s.Ic µpc2709t-e3 ic200 1110003320 s.Ic µpc2710t-e3 ic240 1110003320 s.Ic µpc2710t-e3 ic501 1110004080 s.Ic µpc2709t-e3 ic502 1110003320 s.Ic µpc2710t-e3 ic701 1180001110 s.Ic pq20vz51 q1 1560000270 s.Fet 2sk302-y (te85r) q2 1560000270 s.Fet 2sk302...

  • Page 57

    [pa unit] [pa 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 l117 6200008910 s.Coil 1812cs-122xkbc l118 6200008910 s.Coil 1812cs-122xkbc ...

  • Page 58

    S.=surface mount [pa unit] [pa unit] r108 7030008190 s.Resistor erj12yj330u (33 Ω) r110 7030003290 s.Resistor erj3geyj 560 v (56 Ω) r111 7030003400 s.Resistor erj3geyj 471 v (470 Ω) r117 7030006070 s.Resistor erj12yj101u (100 Ω) r118 7030003560 s.Resistor erj3geyj 103 v (10 k Ω) r121 7030000230 s.Re...

  • Page 59

    [pa unit] [pa 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.Resistor erj3geyj 470 v (47 Ω) r615 7510001160...

  • Page 60

    S.=surface mount [pa unit] [pa unit] c139 4030011210 s.Ceramic grm42-6 ch 330j 500pt c140 4030016580 s.Ceramic grh111 ch 390j 500pt c141 4030016580 s.Ceramic grh111 ch 390j 500pt c142 4030004950 s.Ceramic c2012 ch 1h 470j-t-a c143 4030004720 s.Ceramic c2012 jb 1h 102k-t-a c144 4030006880 s.Ceramic c...

  • Page 61

    [pa unit] [pa 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 electrolytic eca 1chg 471 c310 4030007170 s.Ceramic c1608 ch 1h 221j-t-a c311 4030006880 s.Ceramic c1608 jb 1h 472k-t-a c312 4030011600 s.Ceramic c1608 j...

  • Page 62

    S.=surface mount [pa unit] [pa 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 c611 4030007030 s.Ceramic c1608 ch 1h 150j-t-a c612 4030009920 s.Ceramic c1...

  • Page 63

    [drv board] [pa 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.Jumper erj12yj0r00u w61 7030008240 s.J...

  • Page 64

    S.=surface mount [main unit] — ux-910 6-2 ux-910 [main unit] ic21 1150002020 ic m57762-02 ic31 1110001220 s.Ic ba4558f t1 ic111 1110004080 s.Ic µpc2709t-e3 ic131 1110005150 s.Ic µpc8163tb-e3 ic141 1110001890 s.Ic µpc1678g-e2 ic161 1180002040 reg ba09t ic162 1180001070 s.Ic ta7805f (te16l) ic181 1110...

  • Page 65

    [main unit] — ux-910 [main unit] — ux-910 s.=surface mount l285 6200006050 s.Coil lqp11a 6n8c00 l286 6200006020 s.Coil lqp11a 3n9c00 l287 6200006030 s.Coil lqp11a 4n7c00 l289 6200006100 s.Coil lqp11a 18ng00 l311 2040000490 coil exc-eldr25c l501 6200001830 s.Coil nl 322522t-100j l511 6200001830 s.Coi...

  • Page 66

    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) r311 7030003520 s.Resistor erj3geyj 472 v (4.7 k Ω) r312 7030003510 s.Resistor erj3geyj 392 v (3.9 k Ω) r342 7030003440 s.Resistor erj3geyj 10...

  • Page 67

    [main unit] — ux-910 [main unit] — ux-910 s.=surface mount c65 4030011600 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.Ceramic c1608 jb 1h 102k-t-a c71 40300068...

  • Page 68

    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.Ceramic c1608 jb 1h 102k-t-a c293 4...

  • Page 69

    [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 4030011600 s.Ceramic c1608 jb 1c 104kt-n c735 4030006860 s.Ceramic c1608 jb 1h 102k-t-a c741 40...

  • Page 70: Section 7

    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 k...

  • Page 71

    7 - 2 func board jack board vr-a board mic board vr-b board rit board display unit mp25 (c) mp21 (c) mp25 (c) mp21 (c) mp25 (c) mp21 (c) mp25 (c) mp25 (c) mp25 (c) mp25 (c) mp37 (ch) j1 (j) j1 (mic) mp4 (d) mp4 (d) mp37 (ch) ep2 (f) mp33 (c) r1 (va) j1 (mic) mp35 (f) r1 (vb) mp33 (c) mp2 (c) mp38 (f...

  • Page 72

    7 - 3 main unit pll unit drv board varistor-c board varistor-b board pa unit varistor-a board mp12 (ch) mp1851 (m) mp32 (ch) mp56 (ch) mp59 (ch) mp56 (ch) mp56 (ch) mp57 (ch) mp34 (ch) mp34 (ch) mp56 (ch) mp51 (ch) mp34 (ch) mp34 (ch) mp56 (ch) mp32 (ch) mp32 (ch) mp5 (ch) j1 (ch) mp32 (ch) mp32 (ch...

  • Page 73

    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 mp11* 8510013390 2355 mix case 1 mp12* 8510013890 2355 v-a shield plate 1 mp13* 8510013630 2355 u-a shield plate 1 mp14 8510010460...

  • Page 74: Section 8

    8 - 1 • transistors and fet’s section 8 semi-conductor information 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 e c b e c b e c e c b e e c b e b e c b e c b c e b c e b c e b e c b e c s d g d g s s d g s d g d g s s...

  • Page 75

    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 g d s 2sk2855 2sk2973 2sk2975 3sk131 t2 la 3sk177 t1b u73 3sk241 r cph3404-tl dta114 ee tl dta114eu...

  • Page 76

    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 a c a c a c a c a c a c a c a c a c a c a c red dot a c 1ss301 1ss355 1ss375-tl 1ss385 1sv214 1sv217 1sv237 1sv239 1sv265 tl 1sv286 1sv307 1sv308 da221 dan202 u t107 dan222tl dap202k t146 dap222 ...

  • Page 77: Section 9

    9 - 1 9-1 vr-a board section 9 board layouts • top view gnd j1 2 6 1 to display board j2 5 ma vr nc nc msvr +5v • top view gnd j1 2 6 1 to display board j10 5 rivr nc nc sfvr +5v 9-2 vr-b board • top view gnd 2 j1 6 1 to display board j11 5 sa vr nc nc ssvr +5v 9-3 rit board from the n3ujj.Com docum...

  • Page 78

    9 - 2 • bottom view (rit board) • bottom view (vr-a board) • bottom view (vr-b board) from the n3ujj.Com document library from the n3ujj.Com document library.

  • Page 79

    9 - 3 9-4 func board • top view kst1 kst3 kr t1 kst2 j1 1 5 2 6 to display unit j3 kr t0 gnd 9-8 varistor-a board • top view v-a2 gnd v-a1 to p a unit j652 9-5 mic board • top view 9-6 jack board • top view 9-7 drv board • top view dr v o dr v o gnd gnd gnd gnd dr vi dr vi to pa unit j932 to pa unit...

  • Page 80

    9 - 4 • bottom view (varistor-a board) • bottom view (varistor-b board) • bottom view (varistor-c board) • bottom view (func board) • bottom view (mic board) mic j2 2 10 1 9 to display board j6 gnd ptt miud nc mice afo msqls +9v gnd • bottom view (jack board) phin j2 5 1 6 2 to display board j5 sspo...

  • Page 81

    9 - 5 9-11 display board • top view 8 5 1 4 1 8 16 9 1 8 16 9 1 8 16 9 from the n3ujj.Com document library from the n3ujj.Com document library.

  • Page 82

    9 - 6 • bottom view (display board) 1 4 5 8 1 5 4 8 1 4 8 5 1 100 81 80 51 50 31 30 1 100 81 80 51 50 31 30 1 8 16 9 gnd 1 to main sensor j4 4 a b +5v mspo j14 7 1 to main unit j1251, j1201 sspo phg 14v hv mic mice to fan gnd j12 3 1 nc f anv +5v j2 1 to vr-a board j1 5 msvr nc nc mavr gnd 2 6 phin ...

  • Page 83

    9 - 7 9-12 pa unit • top view 1 4 8 5 1 3 6 4 1 5 6 1 3 6 4 spe sp j50 to main unit j1853 spe sp j51 1 2 2 1 to sp1 dr vi dr vi gnd gnd j931 1 4 to drv board gnd gnd dr v o dr v o j932 1 4 to drv board v-c1 gnd v-c2 j651 1 v-a2 gnd v-a1 j652 3 to varistor-a board to varistor-c board to varistor-b bo...

  • Page 84

    9 - 8 • bottom view (pa unit) 1 3 4 6 1 3 4 6 from the n3ujj.Com document library from the n3ujj.Com document library.

  • Page 85

    9 - 9 9-13 pll unit • top view r325 1 25 75 44 34 12 22 1 8 16 9 33 23 1 11 51 100 76 26 50 1 4 8 5 1 25 75 33 23 1 11 22 12 34 44 51 100 76 26 50 1 4 8 5 1 4 8 5 gnd pd a t 43dt 14ul nc nc nc 14v +9v - 5v pck 14dt pst4 43ul nc bfst 14v nc nc gnd 1 2 j601 1 19 2 to display board j9 to main unit j501...

  • Page 86

    9 - 10 • bottom view (pll unit) r341 mp11 from the n3ujj.Com document library from the n3ujj.Com document library.

  • Page 87

    9 - 11 9-14 main unit • top view 1 18 16 9 1 10 20 18 16 9 11 8 1 8 16 9 1 8 16 9 16 9 18 16 9 8 1 18 16 9 8 16 9 1 1 8 16 9 1 4 8 5 1 16 9 1 8 12 24 13 18 16 9 16 9 1 18 16 9 18 16 9 8 1 4 8 5 1 1 8 16 9 7 14 8 8 1 18 16 9 18 16 9 1 12 remo te ac c 1 da t a 1 da t a 2 key main sp sub sp mice mic j1...

  • Page 88

    9 - 12 • bottom view (main unit) 14 85 1 7 1 1 12 81 4 71 81 4 7 1 5 10 6 1 5 10 14 8 1 7 7 1 8 8 14 7 1 14 6 1 1 4 8 5 24 13 7 14 8 14 85 14 8 from the n3ujj.Com document library from the n3ujj.Com document library.

  • Page 89

    9 - 13 9-15 ux-910 main unit • top view ifm 25 j311 to ic-910 main unit j2 nc 14v gnd txs 12tp 12pv -5v pdat 12ps 12ul gnd ifs 1 gnd 24 14v nc dres rxs 1for opb1 pck 12st 12ds 12ref gnd 2 5 8 4 1 1 8 16 9 1 4 8 5 1 1 4 8 1 1 5 10 6 4 8 5 5 4 8 5 1 100 76 26 50 25 75 51 1 3 6 4 1 4 8 5 4 1 5 5 8 4 1 ...

  • Page 90

    9 - 14 • bottom view (ux-910 main unit) 1 4 8 5 from the n3ujj.Com document library from the n3ujj.Com document library.

  • Page 91

    10 - 1 10-1 main unit section 10 block diagrams af2s af1s af2m af1m stls dssw dsps dspm unfm agfm agsm wncm coms cwvr d96s pif phco pcon muts mutm extg upri 430s 430m 430m 144m ut9v vt9v vut9 sw send remote common line line rx line tx line data bus line dcon din mod bu4053bcfv ic1531a key avxl extg ...

  • Page 92

    10 - 2 10-2 pa and pll units b2lo 60.4 mhz osc buff amp amp amp 2sc4081 2sc4081 q602 q541 sc-1287 ic601 2sc5107 q551 x2 bpf att lpf dds bfom to ux-910 30.2 mhz common line line rx line tx line data bus line 43ul dtc144eu q154 det unlock bfos att att lpf lpf hpf hpf from display board bu4094bcf ic1 d...

  • Page 93

    10 - 3 10-3 front unit s-80942anmp-dd6 ic7 alcl stl srl key front rms20-250-201-1r ep1 xn58x2464 ic6 main sensor key matrix bus front key func board sub tx/rx led phin sfvr rivr ssvr savr msvr mavr phone jack vr-a board vr-b board rit board main tx/rx led common line line rx line tx line data bus li...

  • Page 94

    11 - 1 section 11 wiring diagram 1 2 j551 j541 30.2 p312 j1 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 pll unit 430m 1lo w305 2 1 2 1 gnd bfos j1051 2 1 p701 2 1 afs dsom gnd gnd dsos gnd nc nc dres ints dpst mdtc mck 5v dsps gnd gnd gnd ifm gnd nc nc 14v 14v gnd dres txs rxs 12tp 1for 12pv ...

  • Page 95

    12 - 1 12-1 front unit section 12 voltage diagrams [power] j14 from main unit j1251, j1201 to main unit j1101 to main unit j1151 7 6 5 4 3 2 1 hv 14v mic mice mspo phg sspo phg1 hf50acc322513-b l3 phin gnd sspo mspo gnd mic mice +9v miud2 gnd afo ptt msqls gnd j6 10 9 8 7 6 5 4 3 2 1 0.001 c25 ep4 h...

  • Page 96

    12 - 2 12-2 pll unit 0.68 µ h l601 0.47 µ h l602 220p c601 56p c602 390p c603 180p c604 180p c605 w603 68p c608 3.3 µ h 0.68 µ h 0.47 µ h 3.3 µ h l604 0.01 c609 r613 2k r614 2k r615 2k r616 2k r617 2k r618 2k r619 2k r620 2k r609 1k r608 1k r607 1k r606 1k r605 1k r604 1k r603 1k pck pdat pres bfst ...

  • Page 97

    12 - 3 12-3 pa unit (1) chassis j1 [vhf ant] w710 p501 j501 to main unit j51 from pll unit j251 j503 p510 j510 to main unit j651 r722 1k d721 hsu88 c731 100p r715 47k c715 100p c734 2p c730 6p l721 la-177 l722 la-177 l723 la-176 r721 68 l657 la-300 c676 10p r711 56 c671 15p c672 15p c673 2p c674 47p...

  • Page 98

    12 - 4 12-4 pa unit (2) chassis j2 [uhf ant] r185 1k d181 hsu88 c192 220p r170 2.2k c401 220p l182 1812cs.122xkbc w180 r184 68 r186 68 r189 10k c191 10p l180 la-69 l181 la-69 l184 la-252 d182 xb15a407 d184 xb15a407 d183 xb15a407 d185 xb15a407 c194 0.001 c185 1p c187 2p c173 4p c329 2p c174 200p c156...

  • Page 99

    12 - 5 unit (1) main 0.01 c1461 0.01 c1471 0.01 c1481 c1491 0.01 0.1 c1532 0.1 c1531 r1709 10k c1724 0.1 4.7k r1708 r1681 100k c1521 0.01 ctcs afs afm cp1404 cp1403 cp1402 cp1401 c1401 0.01 c1402 0.01 mice mic hv 14v phg sspo mspo cive civ dot dash h e f h f l1585 100 µ h outs ptt1 outm aalc extg d9...

  • Page 100

    12 - 6 xp4312 q402 1 2 3 4 5 6 1 c482 2sk1829 q406 xp4601 q405 1 2 3 4 5 6 1 2 3 4 5 6 0.01 c469 c467 10 0.0056 c466 0.1 c465 0.0022 c464 47k r477 1k r475 1.8k r474 22k r473 22k r472 22k r471 47k r470 47k r469 w483 0.1 c468 r479 56k r478 220 180k r476 -5v 56k r486 10k r485 0.1 c474 680p c480 100k r4...

  • Page 101

    12 - 7 12-8 ux-910 main unit (1) mp541 c546 0.5p r555 100 r551 22k l555 56nh c551 47p r533 100 r543 6.8k c549 0.001 l531 10nh q541 2sc5508 8v_1vco d531 ma8082 r531 220 q531 2sd2216 ep543 d541 1sv239 r515 10 c548 10p c533 1 c534 470p c538 0.001 c531 470 c532 1 ssb,cw q511 2sk880 c514 0.0047 c511 0.00...

  • Page 102

    12 - 8 12-9 ux-910 main unit (2) chassis j501 [12ant] 1lo 2lo cnty -5v dat ck 12ul 12c2 12ps 12ds 12dr +5 +9 cnty +5 +9 -5v 1lo 2lo ck dat 12c2 12ul 12dr 12ds 12ps main unit (1) main unit (2) dres 12st +5 dat ck +5 1k r342 2lo 1lo 2lo 1lo +5 bu4094bcfv ic301 8 16 10 qs 9 qs 11 q8 12 q7 13 q6 14 q5 7...

  • Page 103

    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.Icomuk.Co.Uk zac de la plaine, rue brindejonc des...

  • Page 104

    1-1-32, kamiminami, hirano-ku osaka 547-0003, japan s-13714hz-c1 © 2001 icom inc. From the n3ujj.Com document library from the n3ujj.Com document library.