1. DL manuals
  2. Icom
  3. Transceiver
  4. IC-F51
  5. Service Manual

Icom IC-F51 Service Manual

Manual is about: VHF TRANSCEIVER

Summary of IC-F51

  • Page 1

    Service manual vhf transceiver.

  • Page 2

    Introduction danger ordering parts repair notes this service manual describes the latest service information for the ic-f50/ic-f51 vhf transceiver at the time of publication. Never connect the transceiver to an ac outlet or to a dc power supply that uses more than 8 v. Such a connection could cause ...

  • Page 3

    Table of contents section 1 specifications section 2 inside views section 3 disassembly instructions section 4 circuit descripiton 4-1 receiver circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 4-2 transmiter circuits . . . . . . ....

  • Page 4: Section 1

    1 - 1 section 1 specifications ‘ ‘ general • frequency coverage : 136.000–174.000 mhz • mode : fm • type of emission : • number of conventional channels : 128 ch, 8banks • antenna connector : sma type (50 Ω ) • operating temperature range : –30 ˚c to +60˚c (–22 ˚f to +140˚f) [usa], [gen] –25 ˚c to +...

  • Page 5: Section 2

    Section 2 inside views • main unit 2 - 1 • front unit apc amplifier (ic2: ta75s01f) +5 regurator (ic9: njm2870) if amplifier (q4: 2sc4215) if ic (ic1: ta31136fn) antenna switching circuit (d2,d5: 1sv307) analog switch (ic13: bu4066bcfv) baseband ic (ic10: ak2346) expander ic (ic12: bu4094bcfv) d/a c...

  • Page 6: Section 3

    Section 3 disassembly instructions 3 - 1 chassis unit b c d f g e h a e f shield cover l l k i i k j j main unit chassis unit n n front unit m o • removing the chassis unit 1 unscrew 1 nut a , and remove 1 knob b . 2 remove 1 washer c , and unscrew 1 screw d . 3 unscrew 2 screws e , and remove 2 was...

  • Page 7: Section 4

    4 - 1 section 4 circuit description 4-1 receiver circuits 4-1-1 antenna switching circuit (main unit) the antenna switching circuit functions as a low-pass filter while receiving and a resonator circuit while transmitting. This circuit does not allow transmit signals to enter the receiver circuits. ...

  • Page 8

    4 - 2 4-1-5 af amplifier circuit (main and front units) the af amplifier circuit amplifies the demodulated af sig- nals to drive a speaker. This transceiver employs the base band ic which is composed of pre-amplifier, expander, scrambler, msk de-modulator, etc. At the af amplifier sec- tion. The af ...

  • Page 9

    4 - 3 4-2-2 modulation circuit (main unit) the modulation circuit modulates the vco oscillating signal (rf signal) using the microphone audio signals. The af signals from the d/a converter (ic6, pin 3) change the reactance of varactor diode (d18) to modulate the oscil- lated signal at the tx vco cir...

  • Page 10

    4 - 4 4-3-2 vco circuit (main unit) the vco circuit contains a separate rx vco (q14, d19, d20) and tx vco (q13, d16, d17). The oscillated signal is amplified at the buffer amplifiers (q10, q12) and is then applied to the t/r switch (d14, d15). Then the receive 1st lo (rx) signal is applied to the 1s...

  • Page 11

    4 - 5 4-5 other circuits 4-5-1 compounder circuit (main unit) ic-f50/f51 have compounder circuit which can improve s/n ratio and become wide dynamic range to suppress the transmitting signal and to extend receiving signal. The circuit is composed of the base band ic (main unit; ic10). (1) in case of...

  • Page 12

    4 - 6 4-6-2 main cpu (front unit; ic401) input port for the ptt switch detection signal. Low: while the ptt switch is pushed. Input ports for the key return a/d sig- nals. Input port for the detect signal for con- necting battery pack’s voltage. Input port for the pll lock voltage. Input port for th...

  • Page 13

    4 - 7 4 5 6 7 11 12 13 14 ledr ledt ligt afon duse mcon csft spon outputs rx led control signal. Low: lights on. Outputs tx led control signal. Low: lights on. Outputs back light led control signal. Low: back light is on. Outputs audio control signal. Low: outputs audio signals from speaker. • outpu...

  • Page 14

    5 - 1 section 5 adjustment procedures 5-1 preparation when adjusting ic-f60/f61, the optional cs-f50 adj adjustment software (rev. 1.0 or later), *opc-966 jig cable (modified opc-966 cloning cable ) are required. ■ required test equipment ■ system requirements • microsoft ® windows ® 95 or windows ®...

  • Page 15

    5 - 2 cs-f50 adj rev.1.0 file com 1: open option connect reload (f5) disp para [a / d] vin : 203 : cbh : 7.96 v temps : 190 : beh : 32.23 'c lvin : 110 : 6eh : 2.16 v sd : 31 : 1fh : 0.61 v s mtr : power (hi) : 155 [ # # # # # # # # # # # # ] power (l2) : 82 [ # # # # # # ] power (l1) : 51 [ # # # #...

  • Page 16

    5 - 3 + add a jumper wire here electro l ytic capacity 47 µf opc-966 (cloning cable) audio generator 300 hz to 3 khz ac millivoltmeter ptt ptt e mic mice sp– sp+ + – fm deviation meter sinad meter speaker (8 Ω ) audio generator *opc-966 (jig cable) ic-f 5 0/f 5 1 (incl. Level converter circuit) db9 ...

  • Page 17

    5 - 4 5-2 software adjustments (transmitting) select an operation using [ ↑ ] / [ ↓ ] keys, then set specified value using [ ← ] / [ → ] keys on the connected computer keyboard. 1 2 3 4 1 1 2 3 1 2 3 1 2 3 • operating ch : ch3 • receiving • operating ch : ch3 • transmitting • operating ch : ch11 • r...

  • Page 18

    Main front panel minimum distortion level set “sql level” to close squelch. Then set “sql level” at the point where the audio signals just appears. 5 - 5 *the output level of the standard signal generator (ssg) is indicated as the ssg’s open circuit. Software adjustments (receiving) • select an oper...

  • Page 19: Section 6

    [front unit] [vr board] r601 7210003130 variable tp76n97n-13f-10ka-2497 t w601 8900012340 cable opc-1260 t ep601 0910056532 pcb b 6034b d701 1790001810 s.Varistor avr-m1005c080mtabb b d702 1790001810 s.Varistor avr-m1005c080mtabb b d703 1790001810 s.Varistor avr-m1005c080mtabb b d704 1790001810 s.Va...

  • Page 20

    [front unit] r494 7030008010 s.Resistor erj2gej 123 x (12 k Ω ) t r495 7030008010 s.Resistor erj2gej 123 x (12 k Ω ) t r496 7030005050 s.Resistor erj2gej 103 x (10 k Ω ) t r497 7030005050 s.Resistor erj2gej 103 x (10 k Ω ) t r500 7030005090 s.Resistor erj2gej 104 x (100 k Ω ) t r501 7030005090 s.Res...

  • Page 21

    [main unit] q23 1520000450 s.Transistor 2sb1132 t100 q b q24 1590001190 s.Transistor xp6501-(tx) .Ab b q25 1590000720 s.Transistor dta144eua t106 b q26 1590003320 s.Fet tpc6103 (te85l) t q27 1590000720 s.Transistor dta144eua t106 a only b q29 1590000430 s.Transistor dtc144eua t106 b d1 1790001670 s....

  • Page 22

    [main unit] r113 7030005040 s.Resistor erj2gej 472 x (4.7 k Ω ) t r115 7030007570 s.Resistor erj2gej 122x (1.2 k Ω ) b r116 7030007060 s.Resistor erj2gej 684x (680 k Ω ) b r117 7030005040 s.Resistor erj2gej 472 x (4.7 k Ω ) b r118 7030005040 s.Resistor erj2gej 472 x (4.7 k Ω ) b r119 7030005050 s.Re...

  • Page 23

    [main unit] c117 4030017730 s.Ceramic ecj0eb1e471k b c118 4030017530 s.Ceramic ecj0ec1h0r5b b c119 4030017460 s.Ceramic ecj0eb1e102k b c120 4030017730 s.Ceramic ecj0eb1e471k b c121 4030017390 s.Ceramic ecj0ec1h180j b c122 4030017660 s.Ceramic ecj0ec1h330j b c123 4030017510 s.Ceramic ecj0ec1h680j b c...

  • Page 24: Section 7

    Section 7 mechanical parts and disassembly 7 - 1 ref. No. Order no. Description qty. Mp701 8950005520 2403 9-pin connector 1 ref. No. Order no. Description qty. R601 7210003130 tp76n97n-13f-10ka-2497 1 ref. No. Order no. Description qty. Ds401 5030002630 l3-0048tay-2 1 ep402 8930061530 srcn-2681-sp-...

  • Page 25

    7 - 2 unit abbreviation (c): chassis parts, (m): main unit, (co): connector unit, (v): vr unit, (a): accessories, (f): front unit mp15(c) mp11(c) mp415(f) mp414(f) mp413(f) mp3(a) mp2(a) mp15(c) mp404(f) mp11(c) mp411(f) mp412(f) mp701(co) mp418(f) mp417(f) mp423(f) mp426(f) w401(f) mp12(c) mp12(c) ...

  • Page 26

    Section 8 semi-conductor information 8 - 1 • diodes • transistor and fet’s 2sa1577 q (symbol: hp) 2sc5107 o (symbol: mfo) dta144 eu (symbol: 16) xp1214 (symbol: 9h) rd01mus1 (symbol: k2) rd07mvs1 (symbol: rd07mvs1) xp4111 (symbol: 9u) xp4312 (symbol: 7t) rsr025n03 (symbol: qy) xp6501 ab (symbol: 5n)...

  • Page 27: Section 9

    Section 9 board layouts 9-1 main unit • top view r123 c256 c263 c281 c304 r194 c303 c271 r109 c208 c202 c206 r86 c145 c203 c143 r101 r100 c141 r89 c76 c83 c104 c111 r87 c139 ep1 r80 c257 c258 r127 r128 c247 c266 c251 r187 r23 c43 r21 r104 c170 r153 r154 r155 r152 c180 r148 c222 r182 c221 c223 r20 c3...

  • Page 28

    • bottom view c274 c248 c289 r144 r145 c158 c159 c287 r191 c157 ep6 c140 c209 r97 r93 ep3 c260 c269 c267 r130 r132 r116 r115 c162 c166 c164 c288 r190 r108 c156 r94 c155 c151 r164 c232 r98 r161 r169 c231 c97 r165 c292 c96 r62 c90 c95 r63 c99 r68 c15 c308 d2 l3 d1 c8 l16 q23 c233 q25 mp1 q24 c238 c5 c...

  • Page 29

    9-2 front unit • top view c424 c494 c428 c483 c432 c491 c410 c408 r466 c442 r468 r467 r476 c477 c446 r420 r441 c445 r464 r465 r461 r462 r463 r475 r471 c461 r415 r472 r473 r474 r503 c473 r502 c468 c466 r414 c417 c495 c412 c493 c416 c413 r494 c418 r501 r412 c465 r413 r404 c403 r506 r512 r507 c478 c477...

  • Page 30

    • bottom view r446 r458 r444 r442 c485 c500 r434 r445 c433 c484 r443 c426 r457 q413 q406 q403 ds404 q404 mc401 ds402 ds403 q405 c437 ds406 ds405 9 - 4.

  • Page 31

    R601 vhf b6034b 9-3 vr board • top view • bottom view 9 - 5.

  • Page 32

    9-4 connector board • top view d704 r701 mp701 9 1 ptt mic txd rxd reset mice optv vcc afo • bottom view c704 d705 c703 c702 c701 d703 d702 d701 ep704 b6035c ep703 ep702 ep701 ep705 ptt mic clo cli res gnd optv afo vcc 9 - 6.

  • Page 33

    Section 10 block diagram 10 - 1 136–174mhz lpf tmut battery_1 bt1 1 f1 vcc 2 q26: tcp6103 q403: 2sc4116 q404: rsr025n03 q405: rsr025n03 w406: dtc144eu q401: 2sb1132 q402: xp6501 ic406: tc7w66fk d401: ma2s111 d402: ma2s111 q407: dta144eu q409: xp4111 ds402_403 sml–310mt amp ic407: njm12904 lpf ic403:...

  • Page 34

    Section 11 voltage diagram 11 - 1 11-1 main unit c211 4.7 r104 220 k r105 330 k r94 150 k c151 0.1 c200 47 p c199 0.001 c201 1 c202 0.1 r116 680 k r115 1.2 k l35 0.22 h c185 0.1 c167 0.1 r40 1.5 k c67 0.001 c75 10 r38 100 k r36 1.5 k r48 680 r34 100 k c60 0.01 r35 100 c59 0.001 c57 0.001 c52 12 p c5...

  • Page 35

    11-2 front unit 11 - 2 com2 com1 seg32 seg31 seg30 seg29 seg28 seg27 seg26 seg25 seg24 seg23 seg22 seg21 seg20 seg19 seg18 seg17 pm7/seg32 pn0/seg33 pn1/seg34 pn2/seg35 pn3/seg36 pn4/seg37 pn5/seg38 pn6/seg39 pn7/seg40 ph0/com1 ph1/com2 ph2/com3 ph3/com4 v1 v2 v3 c1 c2 pf3/adtrg/irq3 p35/sck1/scl0/i...

  • Page 36

    11-3 vr / connector boards connector board vr board r601 tp76n97n-13f-10ka-2497 w601 duse 4 3 2 1 afout signal pwon from / to the j402 at the front unit vcc vcc mice r701 1 k c701 0.001 d701 avr-m1005 c080mtabb d702 avr-m1005 c080mtabb c704 0.001 d705 avr-m1005 c080mtabb d703 avr-m1005 c080mtabb d70...

  • Page 38

    1-1-32, kamiminami, hirano-ku, osaka, 547-0003, japan s-14007iz-c1 © 2003 icom inc..

  • Page 39: Service

    Service manual uhf transceiver.

  • Page 40

    Introduction danger ordering parts repair notes this service manual describes the latest service information for the ic-f60/ic-f61 uhf transceiver at the time of publication. Never connect the transceiver to an ac outlet or to a dc power supply that uses more than 8 v. Such a connection could cause ...

  • Page 41

    Table of contents section 1 specifications section 2 inside views section 3 disassembly instructions section 4 circuit descripiton 4-1 receiver circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 4-2 transmitter circuits . . . . . . ...

  • Page 42: Section 1

    1 - 1 section 1 specifications ‘ ‘ general • frequency coverage : 400.000–470.000 mhz [usa], [eur], [gen] 450.000–512.000 mhz [usa] 450.000–520.000 mhz [gen] • mode : fm • type of emission : • number of conventional channels : 128 ch, 8 banks • antenna connector : sma type (50 Ω ) • operating temper...

  • Page 43: Section 2

    Section 2 inside views • main unit 2 - 1 • front unit apc amplifier (ic2: tc75s51f) +5 regurator (ic9: njm2870) if amplifier (q4: 2sc4215 o) if ic (ic1: ta31136fn) antenna switching circuit d2: 1sv307 d5:ma2s077 analog switch (ic13: bu4066bcfv) baseband ic (ic10: ak2346) expander ic (ic12: bu4094bcf...

  • Page 44: Section 3

    Section 3 disassembly instructions 3 - 1 chassis unit b c d f g e h a e f shield cover l l k i k j main unit chassis unit j j n n front unit m o • removing the chassis unit 1 unscrew 1 nut a , and remove 1 knob b . 2 remove 1 washer c , and unscrew 1 screw d . 3 unscrew 2 screws e , and remove 2 was...

  • Page 45: Section 4

    4 - 1 section 4 circuit description 4-1 receiver circuits 4-1-1 antenna switching circuit (main unit) the antenna switching circuit functions as a low-pass filter while receiving and a resonator circuit while transmitting. This circuit does not allow transmit signals to enter the receiver circuits. ...

  • Page 46

    4 - 2 4-1-5 af amplifier circuit (main and front units) the af amplifier circuit amplifies the demodulated af sig- nals to drive a speaker. This transceiver employs the base band ic which is composed of pre-amplifier, expander, scrambler, msk de-modulator, etc. At the af amplifier sec- tion. The af ...

  • Page 47

    4 - 3 the filtered af signals are applied to the fm/pm switch (main unit; ic11, pin 6), and pass through the low-pass fil- ter (main unit; ic5, pin 1). The amplified signals are applied to the d/a converter (main unit; ic6, pin 4) the output signals from the d/a converter (main unit; ic6, pin 3) are...

  • Page 48

    4 - 4 4-3-2 vco circuit (main unit) the vco circuit contains a separate rx vco (q13, d16) and tx vco (q14, d17). The oscillated signal is amplified at the buffer amplifiers (q10, q11) and is then applied to the t/r switch (d14, d15). Then the receive 1st lo (rx) signal is applied to the 1st mixer (q...

  • Page 49

    4 - 5 4-5 other circuits 4-5-1 compounder circuit (main unit) ic-f60/f61 have compounder circuit which can improve s/n ratio and become wide dynamic range to suppress the transmitting signal and to extend receiving signal. The circuit is composed of the base band ic (main unit; ic10). (1) in case of...

  • Page 50

    4 - 6 4-6-2 cpu (front unit; ic401) input port for the ptt switch detection signal. Low: while the ptt switch is pushed. Input ports for the key return a/d sig- nals. Input port for the detect signal for con- necting battery pack’s voltage. Input port for the pll lock voltage. Input port for the s-m...

  • Page 51

    4 - 7 4 5 6 7 11 12 13 14 ledr ledt ligt afon duse mcon csft spon outputs rx led control signal. Low: lights on. Outputs tx led control signal. Low: lights on. Outputs back light led control signal. Low: back light is on. Outputs audio control signal. Low: outputs audio signals from speaker. • outpu...

  • Page 52

    5 - 1 section 5 adjustment procedures 5-1 preparation when adjusting ic-f60/f61, the optional cs-f50 adj adjustment software (rev. 1.0 or later), *opc-966 jig cable (modified opc-966 cloning cable ) are required. ■ required test equipment ■ system requirements • microsoft ® windows ® 95 or windows ®...

  • Page 53

    450.000 mhz 450.000 mhz 450.000 mhz 485.000 mhz 485.000 mhz 485.000 mhz 485.000mhz 485.000 mhz 485.000 mhz 485.000 mhz 520.000 mhz 5 - 2 cs-f50 adj rev.1.0 file com 1: open option connect reload (f5) disp para [a / d] vin : 203 : cbh : 7.96 v temps : 190 : beh : 32.23 'c lvin : 110 : 6eh : 2.16 v sd...

  • Page 54

    5 - 3 + add a jumper wire here electro l ytic capacity 47 µf opc-966 (cloning cable) audio generator 300 hz to 3 khz ac millivoltmeter ptt ptt e mic mice sp– sp+ + – fm deviation meter sinad meter speaker (8 Ω ) audio generator *opc-966 (jig cable) ic-f60/f61 (incl. Level converter circuit) db9 fema...

  • Page 55

    Check the “lv” item on the cs-f50 adj’s display. Check the “lv” item on the cs-f50 adj’s display. Loosely couple a frequency counter to the antenna con- nector. Connect an rf power meter to the antenna connector. Connect an fm deviation meter to the antenna connec- tor through the attenuator. 5 - 4 ...

  • Page 56

    5 - 5 software adjustment(transmitting) – continued select an operation using [ ↑ ] / [ ↓ ] keys, then set specified value using [ ← ] / [ → ] keys on the connected computer keyboard. 1 2 3 • operating ch : ch7 • no audio applied to the [mic] input. • set an fm deviation meter as: hpf : off lpf : 20...

  • Page 57

    5 - 6 *the output level of the standard signal generator (ssg) is indicated as the ssg’s open circuit. Software adjustment (receiving) • select an operation using [ ↑ ] / [ ↓ ] keys, then set specified value using [ ← ] / [ → ] keys on the connected computer keyboard. • need to adjust “s-meter adjus...

  • Page 58: Section 6

    [front unit] [front unit] ic401 1140011780 s.Ic hd6432264f01tf (fx-2681a) t ic403 1110005340 s.Ic njm12902v-te1 t ic405 1110001810 s.Ic ta7368f (er) t ic406 1130011740 s.Ic tc7w66fk (te85l) t ic407 1110005330 s.Ic njm12904v-te1 t ic408 1110006260 s.Ic bd5242g-tr t ic409 1130011580 s.Ic 24lc64t-i/sn ...

  • Page 59

    [front unit] c434 4550006250 s.Tantalum teesva 1a 106m8l t c435 4550007060 s.Tantalum ecstiax336r t c436 4030016950 s.Ceramic ecj0eb1a473k t c437 4030017490 s.Ceramic c1608 jb 1a 105k-t b c441 4030016780 s.Ceramic ecj0eb1c153k t c442 4030016930 s.Ceramic ecj0eb1a104k t c443 4030017740 s.Ceramic ecj0...

  • Page 60

    [main unit] [main unit] l9 6200007680 s.Coil lqw2bhn12nj01l b l11 6200007230 s.Coil lqw2bhn15nj01l d b 6200007680 s.Coil lqw2bhn12nj01l c b l12 6200005720 s.Coil eljre 33ng-f b l13 6200003350 s.Coil eljnc r27k-f b l15 6200002850 s.Coil nl 252018t-r82j b l17 6200008240 s.Coil 0.30-0.9-5tl 14n b l19 6...

  • Page 61

    [main unit] [main unit] r170 7030005170 s.Resistor erj2gej 474 x (470 k Ω ) b r173 7030008400 s.Resistor erj2gej 182 x (1.8 k Ω ) t r180 7030005120 s.Resistor erj2gej 102 x (1 k Ω ) b r181 7030005220 s.Resistor erj2gej 223 x (22 k Ω ) t r182 7030005220 s.Resistor erj2gej 223 x (22 k Ω ) t r183 70300...

  • Page 62

    [main unit] [main unit] c143 4030017460 s.Ceramic ecj0eb1e102k t c144 4030017420 s.Ceramic ecj0ec1h470j t c145 4030017420 s.Ceramic ecj0ec1h470j t c146 4550000270 s.Tantalum teesva 1e 474m8l t c147 4550000460 s.Tantalum teesva 1c 105m8l t c148 4550006250 s.Tantalum teesva 1a 106m8l b c149 4030017460...

  • Page 63

    [vr unit] r601 7210003130 variable tp76n97n-13f-10ka-2497 t w601 8900012340 cable opc-1260 t ep601 0910056532 pcb b 6034b d701 1790001810 s.Varistor avr-m1005c080mtabb b d702 1790001810 s.Varistor avr-m1005c080mtabb b d703 1790001810 s.Varistor avr-m1005c080mtabb b d704 1790001810 s.Varistor avr-m10...

  • Page 64: Section 7

    Ep1 0800006730 battery bp-227 1 ep2 3310003150 antenna fa-s27u acc [l] 1 3310003170 antenna fa-s56u acc [h] 1 mp1 8930061480 clip mb-98 acc 1 mp2 8210017071 2337 c-panel-1 1 mp3 8810009270 screw m3 x 4 sus zk 1 mp4 8310060530 2681 key-sticker 1 mp4 8510016150 2682 shield plate 1 mp10 8930062950 shie...

  • Page 65

    7 - 2 unit abbreviation (c): chassis parts, (m): main unit, (co): connector board, (v): vr board, (a): accessories, (f): front unit mp15(c) mp11(c) mp415(f) mp414(f) mp413(f) mp3(a) mp2(a) mp15(c) mp404(f) mp11(c) mp411(f) mp412(f) mp701(co) mp418(f) mp417(f) mp423(f) mp426(f) w401(f) mp12(c) mp12(c...

  • Page 66

    Section 8 semi-conductor information 8 - 1 • diodes • transistor and fet’s 2sa1577 q (symbol: hp) 2sc5107 o (symbol: mfo) dta144 eu (symbol: 16) xp1214 (symbol: 9h) rd01mus1 (symbol: k2) rd07mvs1 (symbol: rd07mvs1) xp4111 (symbol: 9u) xp4312 (symbol: 7t) rsr025n03 (symbol: qy) xp6501 ab (symbol: 5n)...

  • Page 67: Section 9

    Section 9 board layouts 9-1 main unit • top view s1 q18 l46 q7 c369 c18 d38 d8 d25 d7 d1 d39 d4 d3 ic2 l32 q18 c150 ic5 c171 x1 ic11 ic13 ic12 l29 c146 c147 ic10 j1 ic6 c79 l7 l8 d10 q1 q2 d9 l30 d6 c236 ic9 q8 c237 c239 c230 c81 c366 c92 r57 r53 c73 r10 c78 c30 c40 r22 c221 c32 c333 r16 r206 r207 c...

  • Page 68

    • bottom view c365 r51 c1 l4 c16 q23 c233 c238 q24 q25 d2 c374 q11 q21 q29 ic7 l41 c148 mp7 x2 c277 l35 d37 q9 mp1 d15 d17 d22 d12 d16 d2 d14 d5 l3 c2 l1 r337 c3 c4 c8 c12 c11 c13 l17 f13 r1 c9 l44 l2 c5 l9 l11 q3 d18 ic1 c75 l12 l38 c6 c292 r235 c302 r50 c72 c99 c93 r67 c98 r66 r65 r61 r62 r161 r16...

  • Page 69

    9-2 front unit • top view c424 c494 c428 c483 c432 c491 c410 c408 r466 c442 r468 r467 r476 c477 c446 r420 r441 c445 r464 r465 r461 r462 r463 r475 r471 c461 r415 r472 r473 r474 r503 c473 r502 c468 c466 r414 c417 c495 c412 c493 c416 c413 r494 c418 r501 r412 c465 r413 r404 c403 r506 r512 r507 c478 c477...

  • Page 70

    • bottom view r446 r458 r444 r442 c485 c500 r434 r445 c433 c484 r443 c426 r457 q413 q406 q403 ds404 q404 mc401 ds402 ds403 q405 c437 ds406 ds405 9 - 4.

  • Page 71

    R601 b6034b 9-3 vr board • top view • bottom view 9 - 5.

  • Page 72

    9-4 connector board • top view d704 r701 mp701 9 1 ptt mic txd rxd reset mice optv vcc afo • bottom view c704 d705 c703 c702 c701 d703 d702 d701 ep704 b6035c ep703 ep702 ep701 ep705 ptt mic clo cli res gnd optv afo vcc 9 - 6.

  • Page 73

    Section 10 block diagram 10 - 1 400–520mhz lpf battery_1 bt1 1 f1 vcc 2 q26: tcp6103 q403: 2sc4116 q404: rsr025n03 q405: rsr025n03 q406: dtc144eu q401: 2sb1132 q402: xp6501 ic406: tc7w66fk d401: ma2s111 d402: ma2s111 q407: dta144eu q409: xp4111 ds402,ds403 sml–310mt × 2 amp ic407: njm12904 lpf ic403...

  • Page 74

    Section 11 voltage diagram 11 - 1 11-1 main unit voltage line notes : common line tx line rx line vcc s5v +5v c211 4.7 r102 22 k r103 120 k 13 14 ep3 x2 cr–763 r104 220 k r105 330 k c149 0.001 c155 47 p r94 150 k c140 0.1 c154 47 p c153 47 p c152 47 p c151 0.1 c213 0.1 bal ref lvin t5v 12 r108 10 k ...

  • Page 75

    11-2 front unit 11 - 2 com2 com1 seg32 seg31 seg30 seg29 seg28 seg27 seg26 seg25 seg24 seg23 seg22 seg21 seg20 seg19 seg18 seg17 pm7/seg32 pn0/seg33 pn1/seg34 pn2/seg35 pn3/seg36 pn4/seg37 pn5/seg38 pn6/seg39 pn7/seg40 ph0/com1 ph1/com2 ph2/com3 ph3/com4 v1 v2 v3 c1 c2 pf3/adtrg/irq3 p35/sck1/scl0/i...

  • Page 76

    11-3 vr / connector boards connector board vr board r601 tp76n97n-13f-10ka-2497 w601 duse 4 3 2 1 afout signal pwon from / to the j402 at the front unit vcc vcc mice r701 1 k c701 0.001 d701 avr-m1005 c080mtabb d702 avr-m1005 c080mtabb c704 0.001 d705 avr-m1005 c080mtabb d703 avr-m1005 c080mtabb d70...

  • Page 78

    1-1-32, kamiminami, hirano-ku, osaka, 547-0003, japan s-14010iz-c1 © 200 4 icom inc..