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Icom IC-756PROII Service Manual

Other manuals for IC-756PROII: Instruction Manual, Instruction Manual
Manual is about: HF/50MHz ALL BAND TRANSCEIVER

Summary of IC-756PROII

  • Page 1

    Hf/50mhz all mode transceiver i756pro™ service manual.

  • Page 2

    Version u.S.A. Europe france italy korea spain symbol usa eur fra itr kor esp introduction this service manual describes the latest service information for the ic-756proii hf/50mhz all mode transceiver. Danger never connect the transceiver to an ac outlet or to a dc power supply that uses more than ...

  • Page 3

    Table of contents section 1 specifications section 2 inside views section 3 circuit description 3 - 1 receiver circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1 3 - 2 transmitter circuits . . . . . . . . . . . . . . ....

  • Page 4: Section 1

    Section 1 specifications 1 - 1 ■ general • frequency coverage: receive 0.030–60.000 mhz* 1, * 2 transmit 1.800–1.999 mhz* 2 3.500–3.999 mhz* 2 7.000–7.300 mhz* 2 10.100–10.150 mhz* 2 14.000–14.350 mhz* 2 18.068–18.168 mhz* 2 21.000–21.450 mhz* 2 24.890–24.990 mhz* 2 28.000–29.700 mhz* 2 50.000–54.00...

  • Page 5: Section 2

    2 - 1 filter unit current transformer (l1: lr-364) c-mos ic (ic14: tc74ac04f) fan tuner unit fan control circuit antenna tuner cpu (ic5: m38022m2-138fp) ctrl unit common filter (l501, l502: lr-386) pa unit drive amplifier • top view section 2 inside views.

  • Page 6

    2 - 2 • bottom view vco-b circuit ygr amplifier (ic151: µ pc1678g) bpf board pre amplifier (ic451: µ pc1658g) fm if ic (ic841: ta31136fn) rf-a unit optional unit ut-102 2nd if filter (fi111: cfk455e10) 3rd mixer (ic151: tc4w53fu) main-a unit pll unit memory board dsp-a board vco-a circuit ceramic fi...

  • Page 7: Section 3

    Section 3 circuit description 3 - 1 3-1 receiver circuits 3-1-1 rf switching circuit (ctrl and rf-a units) the rf switching circuit leads receive signals to bandpass filters from an antenna connector while receiving. However, the circuit leads the signal from the rf power amplifier to the antenna co...

  • Page 8

    3 - 2 3-1-5 1st if circuit (rf-a unit) the 1st if circuit filters and amplifies the 1st if signal. The 1st if signal combined at l653 is applied to a pair of mcf (monolithic crystal filter; fi711a/b) to suppress out-of-band signals. The level of converted 1st if signal is adjusted at the pin attenua...

  • Page 9

    3 - 3 the level shifted signal is applied to the dsp ic (ic2001) for 36 khz digital if filter, demodulation, automatic notch and noise reduction, etc. The output signal is level shifted 3.3 v to 5v at the level converter (ic2052), and is applied to the d/a converter (ic2351) to convert into the anal...

  • Page 10

    3 - 4 3-2 transmitter circuits 3-2-1 microphone amplifier circuit (main-a unit) the microphone amplifier circuit amplifies microphone audio signals to a level needed for the dsp circuit. Audio signals from the [mic] connector (mic board; j1, pin 1) are amplified at the audio amplifier section in ic4...

  • Page 11

    3 - 5 3-2-5 if amplifier and mixer circuits (main-a and rf-a units) the modulated 3rd if signal from the dsp-a board (dtif: 36 khz) is applied to the 3rd mixer circuit (main-a unit; ic221, pin 1). The applied 3rd if signal is mixed with the 3rd lo signal from the dds circuit (pll unit; ic701) to pro...

  • Page 12

    3 - 6 the alc bias voltage is also applied to the alc meter ampli- fier (ic551a, pin 2) to obtain an alc meter signal (alcl). The amplified signal is passed through the analog switch (ic 3631, pins 13, 14) and applied to the main cpu (ic3501, pin 108) to drive the s/rf meter via the sub cpu (ic401) ...

  • Page 13

    3 - 7 (2) main loop pll the oscillated signal at one of the main loop vcos (q201, d201, d202), (q221, d221, d222), (q251, d251–d254) and (q271, d271–d274) is amplified at the buffer amplifiers (q301, ic320) and is then applied to the pll ic (ic381, pin 6) via the low-pass filter (l303, c304–c307). T...

  • Page 14

    3 - 8 3-4 antenna tuner circuits 3-4-1 matching circuit (tuner unit) the matching circuit is a t-network. Using 2 tuning motors, the matching circuit obtains rapid overall tuning speed. Using relays (rl1–rl15), the relay control signals from the antenna tuner cpu (ctrl unit; ic5) via the buffer ampl...

  • Page 15

    3 - 9 3-5 scope circuits 3-5-1 scope receiver circuit (rf-a unit) a portion of the 64.455 mhz 1st if signal from the 1st mixer circuit (q511–q514: while receiving) or if amplifier (q751: while transmitting) is passed through the pin attenuator (d801) and amplified at the if amplifiers (q811, q812), ...

  • Page 16

    3 - 10 3-6-3 main-a unit 3-6-4 ctrl and pll units 3-7 logic circuits 3-7-1 band selection data (rf-a, ctrl and pll units) to select the correct bandpass, low-pass filters and vcos on the rf-a, filter and pll units, the main cpu (main- a unit, ic3501) outputs the following band selection data via the...

  • Page 17

    3 - 11 3-7-3 main-cpu port allocations (main unit; ic3501) 6–9, 11–18, 20–26 29 30 31 32 34 37 40–43, 45–52, 54–57 59 61 63 64 66 69 70 71 72 73 74 75 76 77 address signal output ports for the lcd controller (ic3551). Input port for the [key] jack. Low : during key down input port for the rtty keyin...

  • Page 18

    3-7-4 input expander allocations (1) display board; ic411 (2) main-a unit; ic3652 3-7-4 output expander allocations (1) pll unit; ic1 (2) pll unit; ic101 (3) pll unit; ic401 3 - 12 1 5 12 13 14, 15 input port for the [rit], [ ∆ tx] and [clear] switches. Input port for [up] and [dn] switches of the c...

  • Page 19

    3 - 13 (4) ctrl board; ic11 (5) rf-a unit; ic901 (6) rf-a unit; ic902 (7) rf-a unit; ic905 4 5 6 7 11 12 13 14 outputs a low-pass filter select signal. High: when 0.03–1.999999 mhz band is selected. Outputs a low-pass filter select signal. High: when 2.0–5.999999 mhz band is selected. Outputs a low-...

  • Page 20

    3 - 14 (8) main-a unit; ic3653 (9) main-a unit; ic3654 (10) main-a unit; ic3752 (11) main-a unit; ic3753 13 14 15 16 17 18 19 outputs strobe signals for the output expander ics (rf-a unit; ic901, ic902, ic905). Outputs the antenna connector ([ant1] or [ant2]) select signal. High: when the [ant2] is ...

  • Page 21

    4 - 1 section 4 adjustment procedures 4-1 preparation before sarvicing ■ required test equipment dc power supply rf power meter (terminated type) frequency counter rf voltmeter fm deviation meter modulation analyzer distortion meter oscilloscope audio generator standard signal generator (ssg) digita...

  • Page 22

    4 - 2 4-2 pll adjustments reference frequency lpl-a lock voltage vco-a lock voltage 1lo-a output level lpl-b lock voltage vco-b lock voltage 1lo-b output level 3lo output level s3lo output level adjustment adjustment adjustment condition measurement value point unit location unit adjust 1 2 1 1 2 3 ...

  • Page 23

    4 - 3 p81 reference frequency check point l52 l81 c454 lpl-b lock voltage adjustment l82 reference frequency adjustment vco-a lock voltage adjustment vco-b lock voltage adjustment lpb lpl-b lock voltage check point c278 c228 c208 c258 c508 c558 c578 c528 p361 1lo-a output level check point r33 refer...

  • Page 24

    4 - 4 4-3 transmitter adjustments idling current (for driver) (for final amplifier) tx peak transmitter total gain adjustment adjustment adjustment condition measurement value point unit location unit adjust 1 2 1 2 3 4 1 • display frequency: 14.100000 mhz • mode : cw (key up) • preset r11, r18 on t...

  • Page 25

    4 - 5 l261 tx peak adjustment r247 tx peak adjustment cp243 tx peak check point r263 transmitter total gain adjustment r28 idling current check point for finals j151 tx peak check point r11 idling current adjustment for drivers r18 idling current adjustment for finals w29 idling current check point ...

  • Page 26

    4 - 6 transmitter adjustments—continued ic apc hf bands output power 50 mhz band output power am carrier fm deviation am modulation adjustment adjustment adjustment condition measurement value point unit location unit adjust 1 1 1 1 1 1 • display frequency: 3.550000 mhz • mode : rtty • connect cp501...

  • Page 27

    4 - 7 r2229 r2227 fm deviation adjustment am modulation adjustment cp501 ic apc check point r545 ic apc adjustment r507 r509 50 mhz band output power adjustment hf bands output power adjustment r510 am carrier adjustment • dsp-a board bottom view of the transceiver main-a unit dsp-a board • main-a u...

  • Page 28

    Rx peak fm distortion mixer balance 4 - 8 *this output level of a standard signal generator (ssg) is indicated as ssg’s open circuit. 4-4 receiver adjustments adjustment adjustment adjustment condition measurement value point unit location unit adjust 1 2 3 1 1 2 • display frequency: 14.100000 mhz •...

  • Page 29

    4 - 9 l721 l713 r616 r516 c655 c555 l613 l513 rx peak adjustment mixer balance adjustment fm distortion adjustment mixer ballance check point rx peak adjustment r615 l113 l141 l112 l111 r515 j711 • rf-a unit • main-a unit bottom view of the transceiver rf-a unit bottom view of the transceiver main-a...

  • Page 30

    4 - 10 receiver adjustments—continued receiver total gain noise blanker spectrum scope adjustment adjustment adjustment condition measurement value point unit location unit adjust 1 1 2 1 2 3 • display frequency: 14.100000 mhz • [dual watch] : off • mode : usb • filter : 2.4 khz • [agc] : off • [p.A...

  • Page 31

    4 - 11 r210 receiver total gain adjustment cp213 receiver total gain check point noise blanker adjustment cp271 noise blanker check point r271 l272 l273 l271 l833 l813 l812 r872 r863 cp871 spectrum scope check point j841 spectrum scope pre-setting spectrum scope adjustment bottom view of the transce...

  • Page 32

    4 - 12 4-5 tuner adjustment swr detector adjustment adjustment adjustment condition measurement value point unit location unit adjust 1 • display frequency: 29.70000 mhz • mode : fm • [rf power] : max. Cw • [tuner] : through • connect j12 (seti) on the ctrl unit to gnd. • connect a 50 Ω terminator t...

  • Page 33

    4 - 13 4-6 meter adjustment entering adjustment mode meter scale tx meter (hf power meter) adjustment adjustment condition display operation • enter the adjustment mode: q turn power off. W terminate the [remote] jack with a 3.5(d) mm mini-plug. E while pushing [ssb] and [cw/rtty], turn power on. • ...

  • Page 34

    4 - 14 meter adjustment—continued (50m power meter) (alc meter) (drive level) (swr meter) rx meter adjustment (scope scale) (s-meter) adjustment adjustment condition display operation • push [f-3 (rx)] to enter the rx meter adjustment. • connect an ssg to [ant1] con- nector and set as : frequency : ...

  • Page 35: Section 5

    5 - 1 [dispaly board] [front unit] s.=surface mount ds1 5080000450 lamp slu2lc1ex5b-th me1 5510000490 meter me-41 (kl-293s-11) sx2495 w1 8900009230 cable opc-908 (p=1 n=10 l=60) w2 8900009660 cable opc-964 (p=1 n=10 l=60) w3 8900009230 cable opc-908 (p=1 n=10 l=60) w4 8900009240 cable opc-909 (p=1 n...

  • Page 36

    [display board] [display board] s.=surface mount r227 7030003440 s.Resistor erj3geyj 102 v (1 k Ω ) r228 7030003440 s.Resistor erj3geyj 102 v (1 k Ω ) r229 7030003440 s.Resistor erj3geyj 102 v (1 k Ω ) r230 7030003440 s.Resistor erj3geyj 102 v (1 k Ω ) r231 7030003440 s.Resistor erj3geyj 102 v (1 k ...

  • Page 37

    5 - 3 s.=surface mount [display board] [display board] r1212 7030003450 s.Resistor erj3geyj 122 v (1.2 k Ω ) r1213 7030003490 s.Resistor erj3geyj 272 v (2.7 k Ω ) r1221 7030003340 s.Resistor erj3geyj 151 v (150 Ω ) r1222 7030003450 s.Resistor erj3geyj 122 v (1.2 k Ω ) r1223 7030003490 s.Resistor erj...

  • Page 38

    [phone board] [display board] s.=surface mount s621 2260001890 s.Switch skqdpa s622 2260001890 s.Switch skqdpa s623 2260001890 s.Switch skqdpa s624 2260001890 s.Switch skqdpa s625 2260001890 s.Switch skqdpa s626 2260001890 s.Switch skqdpa w502 7030003860 s.Jumper erj3ge jpw v w504 7030003860 s.Jumpe...

  • Page 39

    5 - 5 s.=surface mount [key board] [ten-key board] q1 1590002310 s.Transistor dtc114ee tl q2 1590002310 s.Transistor dtc114ee tl q3 1590002310 s.Transistor dtc114ee tl q4 1590002310 s.Transistor dtc114ee tl q5 1590002310 s.Transistor dtc114ee tl r1 7030003540 s.Resistor erj3geyj 682 v (6.8 k Ω ) r2 ...

  • Page 40

    5 - 6 [pll unit] [pll unit] s.=surface mount q651 1590001870 s.Transistor dta114ee tl q661 1590002310 s.Transistor dtc114ee tl q681 1510000510 s.Transistor 2sa1576a t106r q701 1530002060 s.Transistor 2sc4081 t107 r q801 1530002060 s.Transistor 2sc4081 t107 r q802 1530003010 s.Transistor 2sc4117-gr (...

  • Page 41

    5 - 7 s.=surface mount [pll unit] [pll unit] l901 6200008940 s.Coil lqh 3n 331k 34 l902 6200004950 s.Coil nl 252018t-1r8j l903 6200003260 s.Coil nl 322522t-101j l904 6190000950 coil c-13975-6.5t l905 6200003660 s.Coil nl 252018t-r68j l906 6200003260 s.Coil nl 322522t-101j l907 6200002630 s.Coil nl 2...

  • Page 42

    [pll unit] [pll unit] s.=surface mount r409 7030005390 s.Resistor rr0816p-102-d (1 k Ω ) r410 7030005400 s.Resistor rr0816p-202-d (2 k Ω ) r411 7030005390 s.Resistor rr0816p-102-d (1 k Ω ) r412 7030005400 s.Resistor rr0816p-202-d (2 k Ω ) r413 7030005390 s.Resistor rr0816p-102-d (1 k Ω ) r414 703000...

  • Page 43

    5 - 9 s.=surface mount [pll unit] [pll unit] r918 7030003680 s.Resistor erj3geyj 104 v (100 k Ω ) r919 7030003440 s.Resistor erj3geyj 102 v (1 k Ω ) r920 7030003280 s.Resistor erj3geyj 470 v (47 Ω ) r921 7030003280 s.Resistor erj3geyj 470 v (47 Ω ) r922 7030003320 s.Resistor erj3geyj 101 v (100 Ω ) ...

  • Page 44

    [pll unit] [pll unit] s.=surface mount c363 4030006880 s.Ceramic c1608 jb 1h 472k-t-a c364 4030006880 s.Ceramic c1608 jb 1h 472k-t-a c365 4030011600 s.Ceramic c1608 jb 1c 104kt-n c380 4550003220 s.Tantalum temsva 1e 105m-8l c381 4030006880 s.Ceramic c1608 jb 1h 472k-t-a c382 4030007130 s.Ceramic c16...

  • Page 45

    5 - 11 s.=surface mount [pll unit] [pll unit] c708 4030006880 s.Ceramic c1608 jb 1h 472k-t-a c709 4030011340 s.Ceramic c1608 ch 1h 471j-t-a c710 4030007120 s.Ceramic c1608 ch 1h 820j-t-a c711 4030009580 s.Ceramic c1608 jb 1h 681k-t-a c712 4030007070 s.Ceramic c1608 ch 1h 330j-t-a c713 4030010040 s.C...

  • Page 46

    [pa unit] [pa unit] s.=surface mount l1 6140003240 s.Coil lr-361 l2 2040000490 coil exc-eldr25c l3 2040000490 coil exc-eldr25c l4 6140001180 coil lr-143 l5 2040000490 coil exc-eldr25c l6 6140003510 coil lr-393 l7 6140000610 coil lr-83 l8 6140002030 coil lr-230 (sk-10m-15y 120) l9 2040000490 coil exc...

  • Page 47

    5 - 13 s.=surface mount [tuner unit] [pa unit] w29 9045201001 wire 74/98/040/x98/x98 w30 9021780060 wire 74/98/018/x98/x98 w31 9021780060 wire 74/98/018/x98/x98 ws1 8970023490 cable sx2178 1.5d coaxial tube (1)/pa ws2 8970023500 cable sx2178 1.5d coaxial tube (1)/pa ws3 8970023510 e.Other sx2178 j b...

  • Page 48

    [filter unit] [filter unit] s.=surface mount l1 6140002570 coil lr-294 (t50-2) l2 6140002580 coil lr-295 (t50-2) l3 6140001240 coil lr-149 (t68-2) l4 6140001130 coil lr-138 (t68-2) l5 6140001800 coil lr-216 (t50-2) l6 6140001800 coil lr-216 (t50-2) l8 6140002270 coil lr-240 (t68-6) l9 6110002920 coi...

  • Page 49

    5 - 15 s.=surface mount [ctrl unit] [filter unit] w8 7030003860 s.Jumper erj3ge jpw v w9 8900009620 cable opc-961 w10 8900009630 cable opc-962 ep1 0910051805 pcb b 5287e ep501 6510018330 terminal f4053a ep502 6510018330 terminal f4053a ic1 1110000960 s.Ic njm4558m-t1 ic2 1120002250 s.Ic tc74act32f i...

  • Page 50

    [ctrl unit] [ctrl unit] s.=surface mount r67 7030003440 s.Resistor erj3geyj 102 v (1 k Ω ) r69 7030003320 s.Resistor erj3geyj 101 v (100 Ω ) r71 7030003440 s.Resistor erj3geyj 102 v (1 k Ω ) r76 7030003560 s.Resistor erj3geyj 103 v (10 k Ω ) r83 7030007130 s.Resistor erj1wyj150u (15 Ω ) r84 70300035...

  • Page 51

    5 - 17 s.=surface mount [rf-a unit] [ctrl unit] c97 4030006880 s.Ceramic c1608 jb 1h 472k-t-a c98 4510006220 s.Electrolytic ecev1ca101up c100 4030011570 s.Ceramic cm105 ch 101g 50at c101 4030006880 s.Ceramic c1608 jb 1h 472k-t-a c102 4510004630 s.Electrolytic ecev1ca100sr c105 4030011540 s.Ceramic c...

  • Page 52

    [rf-a unit] [rf-a unit] s.=surface mount d443 1790000620 s.Diode ma77 (tx) d444 1790000620 s.Diode ma77 (tx) d481 1790000620 s.Diode ma77 (tx) d531 1750000450 s.Diode 1sv265-tl d532 1750000450 s.Diode 1sv265-tl d533 1750000440 s.Diode 1sv263-tl d534 1790000620 s.Diode ma77 (tx) d535 1790000620 s.Dio...

  • Page 53

    5 - 19 s.=surface mount [rf-a unit] [rf-a unit] l812 6150004280 coil ls-484b (c-14927) l813 6150004280 coil ls-484b (c-14927) l831 6140003210 s.Coil lr-358 l832 6140003210 s.Coil lr-358 l833 6150004280 coil ls-484b (c-14927) l841 6200003080 s.Coil nl 322522t-1r8j-3 l842 6200003640 s.Coil mlf1608e 10...

  • Page 54

    [rf-a unit] [rf-a unit] s.=surface mount r807 7030003440 s.Resistor erj3geyj 102 v (1 k Ω ) r808 7030003440 s.Resistor erj3geyj 102 v (1 k Ω ) r811 7030003520 s.Resistor erj3geyj 472 v (4.7 k Ω ) r812 7030003340 s.Resistor erj3geyj 151 v (150 Ω ) r813 7030003280 s.Resistor erj3geyj 470 v (47 Ω ) r81...

  • Page 55

    5 - 21 s.=surface mount [rf-a unit] [rf-a unit] c329 4030006980 s.Ceramic c1608 ch 1h 070d-t-a c330 4030007050 s.Ceramic c1608 ch 1h 220j-t-a c332 4030007050 s.Ceramic c1608 ch 1h 220j-t-a c333 4030007020 s.Ceramic c1608 ch 1h 120j-t-a c334 4030007130 s.Ceramic c1608 ch 1h 101j-t-a c335 4030007030 s...

  • Page 56

    [rf-a unit] [rf-a unit] s.=surface mount c772 4030006880 s.Ceramic c1608 jb 1h 472k-t-a c774 4030009920 s.Ceramic c1608 ch 1h 050b-t-a c775 4030007040 s.Ceramic c1608 ch 1h 180j-t-a c781 4030011600 s.Ceramic c1608 jb 1c 104kt-n c802 4030006880 s.Ceramic c1608 jb 1h 472k-t-a c803 4030006880 s.Ceramic...

  • Page 57

    5 - 23 s.=surface mount [main-a unit] [bpf board] c2004 4030010760 s.Ceramic c1608 ch 1h 331j-t-a c2005 4030007140 s.Ceramic c1608 ch 1h 121j-t-a c2006 4030007160 s.Ceramic c1608 ch 1h 181j-t-a c2007 4030007060 s.Ceramic c1608 ch 1h 270j-t-a c2008 4030010760 s.Ceramic c1608 ch 1h 331j-t-a c2009 4030...

  • Page 58

    [main-a unit] [main-a unit] s.=surface mount q652 1540000440 s.Transistor 2sd1619-t-td q653 1590001150 s.Transistor un9211 (tx) q691 1590001150 s.Transistor un9211 (tx) q801 1530002060 s.Transistor 2sc4081 t107 r q803 1590002430 s.Transistor dta144ee tl q804 1540000470 s.Transistor 2sd1801s-tl q3002...

  • Page 59

    5 - 25 s.=surface mount [main-a unit] [main-a unit] r102 7030003730 s.Resistor erj3geyj 274 v (270 k Ω ) r103 7030003680 s.Resistor erj3geyj 104 v (100 k Ω ) r104 7030003620 s.Resistor erj3geyj 333 v (33 k Ω ) r105 7030003680 s.Resistor erj3geyj 104 v (100 k Ω ) r106 7030003680 s.Resistor erj3geyj 1...

  • Page 60

    [main-a unit] [main-a unit] s.=surface mount r464 7030003640 s.Resistor erj3geyj 473 v (47 k Ω ) r465 7030003640 s.Resistor erj3geyj 473 v (47 k Ω ) r466 7030003680 s.Resistor erj3geyj 104 v (100 k Ω ) r471 7030003440 s.Resistor erj3geyj 102 v (1 k Ω ) r472 7030003520 s.Resistor erj3geyj 472 v (4.7 ...

  • Page 61

    5 - 27 s.=surface mount [main-a unit] [main-a unit] r3555 7030003580 s.Resistor erj3geyj 153 v (15 k Ω ) r3556 7030003580 s.Resistor erj3geyj 153 v (15 k Ω ) r3557 7030003580 s.Resistor erj3geyj 153 v (15 k Ω ) r3558 7030003440 s.Resistor erj3geyj 102 v (1 k Ω ) r3559 7030003270 s.Resistor erj3geyj ...

  • Page 62

    [main-a unit] [main-a unit] s.=surface mount c141 4030006860 s.Ceramic c1608 jb 1h 102k-t-a c142 4030011600 s.Ceramic c1608 jb 1c 104kt-n c144 4030011600 s.Ceramic c1608 jb 1c 104kt-n c145 4030006880 s.Ceramic c1608 jb 1h 472k-t-a c146 4030011600 s.Ceramic c1608 jb 1c 104kt-n c151 4510006220 s.Elect...

  • Page 63

    5 - 29 s.=surface mount [main-a unit] [main-a unit] c670 4030006880 s.Ceramic c1608 jb 1h 472k-t-a c681 4030006880 s.Ceramic c1608 jb 1h 472k-t-a c691 4030006880 s.Ceramic c1608 jb 1h 472k-t-a c692 4030006880 s.Ceramic c1608 jb 1h 472k-t-a c701 4030007130 s.Ceramic c1608 ch 1h 101j-t-a c702 40300116...

  • Page 64

    [main-a unit] [main-a unit] s.=surface mount c3764 4030006880 s.Ceramic c1608 jb 1h 472k-t-a c3765 4030006880 s.Ceramic c1608 jb 1h 472k-t-a c3766 4030006880 s.Ceramic c1608 jb 1h 472k-t-a c3767 4030006880 s.Ceramic c1608 jb 1h 472k-t-a c3768 4030006880 s.Ceramic c1608 jb 1h 472k-t-a c3769 403000688...

  • Page 65

    5 - 31 s.=surface mount [dsp-a unit] [dsp-a unit] l2502 6200003950 s.Coil hf50acc 322513-t l2503 6200003950 s.Coil hf50acc 322513-t l2504 6200003950 s.Coil hf50acc 322513-t l2506 6200003950 s.Coil hf50acc 322513-t r2001 7030003560 s.Resistor erj3geyj 103 v (10 k Ω ) r2002 7030003560 s.Resistor erj3g...

  • Page 66

    [dsp-a unit] [dsp-a unit] s.=surface mount r2446 7030003560 s.Resistor erj3geyj 103 v (10 k Ω ) r2447 7030003560 s.Resistor erj3geyj 103 v (10 k Ω ) r2448 7030003560 s.Resistor erj3geyj 103 v (10 k Ω ) r2449 7030003560 s.Resistor erj3geyj 103 v (10 k Ω ) r2450 7030003440 s.Resistor erj3geyj 102 v (1...

  • Page 67

    5 - 33 s.=surface mount [dsp-a unit] [dsp-a unit] c2351 4030007010 s.Ceramic c1608 ch 1h 100d-t-a c2352 4030007010 s.Ceramic c1608 ch 1h 100d-t-a c2353 4510004630 s.Electrolytic ecev1ca100sr c2354 4030011600 s.Ceramic c1608 jb 1c 104kt-n c2355 4510004630 s.Electrolytic ecev1ca100sr c2356 4030011600 ...

  • Page 68: Section 6

    Ds1 5080000450 slu2lc1ex5b-th 1 me1 5510000490 meter me-41 1 ep1 6910011090 sensor unit rms20-250-201-p 1 ep2 6450001230 plate hlj0999-01-480 1 ep3 6450001230 plate hlj0999-01-480 1 ep4 6910012500 unit board tfd50w40-a 1 mp1 8210018221 1876 front panel (c)-1 1 mp2 8010016722 1876 sub chassis-2 1 mp3...

  • Page 69

    Mp4 (f) me1 (f) mp1 (f) mp5 (f) mp19 (f) mp7 (f) mp3 (f) mp6 (f) mp11 (f) mp51 (f) mp52 (f) mp8 (f) mp13 (f) mp9 (f) mp10 (f) mp29 (f) mp11 (f) mp12 (f) mp38 (c) mp12 (f) mp11 (f) j1 (mi) j2 (ke) j2 (ph) mp14 (f) mp43 (c) + mp42 (c) + mp45 (c) + mp44 (c) mp12 (f) mp15 (c) + j6 (c) mp15 (c) + j5 (c) ...

  • Page 70

    6 - 3 pa unit filter unit ctrl unit pll unit bpf board rf-a unit main-a unit dsp-a board tuner board mp81 (c) mp35 (c) mp204 (pl) mp722 (rf) mp742 (rf) mp812 (rf) mp59 (c) mp602 (rf) mp502 (rf) mp28 (c) mp23 (c) mp72 (c) mp70 (c) mp47 (c) mp46 (c) mp63 (c) mp79 (c) ep1 (c) mp61 (c) mp31 (c) mp68 (c)...

  • Page 71

    Mf1 2710000460 motor mp28ga 1 mf2 2710000460 motor mp28ga 1 mp1 8930041090 1876 a-angle 1 mp2 8810008660 screw ph bt m3 × 8 ni-zu 1 mp3 8810009060 screw fh m3 × 6 zk 4 mp4 8930041110 1876 b-angle 1 mp5 8810009060 screw fh m3 × 6 zk 2 mp6 8820000880 1528 screw 4 mp7 8930030111 1414 plate-1 2 mp8 8950...

  • Page 72

    Section 7 semi-conductor information b e c b e c b e c b c e b c e b b e e c c b e c b e c b 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 c b c e b e e e e c b e c b e c b e c b c e b c e g d s d d g s s d g s d g d g s d g s s g d g g1 g2 s d b e c b e c b e c b e c b e c b e c 2sa1162 gr 2sa1...

  • Page 73

    7 - 2 c a1 a2 a1 a2 c1 c2 a c a c a1 a2 c1 c2 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 nc a1 a2 c2 c1 c a1 a2 a c2 c1 a1 a2 c white green a c a c a c 1ss226 1ss301 1ss319 1ss322 1ss375-tl 1sv263 tl 1sv265 tl 1sv307 1sv308 da221 tl dan222tl dap222 tl dwa010 te hsb88wstr hsm88asr tr hsm88as...

  • Page 74: Section 8

    Section 8 board layouts 8-1 pbt, rit and mic boards • pbt board 5vf 2 1 10 9 j1 to display board j601 pitl pb1b pb2b gnd no tl pb1a pb2a gnd gnd pbt1/pbt2 notch/cw pitch • rit board • mic board gnd 1 9 2 10 j1 to display board j120 gnd gnd gnd 5vf gnd gnd gnd rdn ru p rit 7 6 8 4 5 3 2 1 j1 nc 2 1 1...

  • Page 75

    8 - 2 1 14 7 8 1 4 8 5 power transmit tuner monitor nb nr af, af/sql bal/nr mic gain rf power comp bk-in delay key speed 8-2 display board (top view).

  • Page 76

    8 - 3 1 4 8 5 1 4 5 8 1 4 8 5 16 9 1 8 1 100 25 26 50 51 75 76 1 7 14 8 1 7 14 8 1 16 32 17 nc 1 to lcd 23 2 24 j531 hd nc nc gnd l5v gl vcom nc u/d nc l18v l5v vd polc nc nc rl bl gnd l/r nc n/p -15v 9 1 2 10 to pbt board j1 j601 5vf pitl pb1b pb2b gnd notl pb1a pb2a gnd gnd 23 1 24 2 to main-a uni...

  • Page 77

    8 - 4 a b c d e f g f-1 f-2 f-3 f-4 f-5 ssb cw/rtty am/fm filter exit speech 8-3 mode, phone, key and ten-key boards split 1.8 3.5 7 up dw 10 14 18 down change 21 24 28 mw v/m m/s gene mp-w 50 mp-r ts xfc pbt-cl rit lock ∆ tx clear notch f-inp m-cl 9 1 10 1 to display board j941 j1 pho phni gnd gnd ...

  • Page 78

    8 - 5 gnd 2 1 16 to display board j201 15 j1 5vf ki2 cwk filk spek f2k f4k gnd ki1 ssbk amk extk f1k f3k f5k splk 1 15 2 16 j1 to display board j221 3k 10k 18k 24k 50k fink mprk 1k 7k 14k 21k 28k genk mpwk gnd 1 23 2 24 j2 to display board j241 mupk mwk tsk lock notk 5vf ldv txd notd gnd gnd gnd mdn...

  • Page 79

    8 - 6 bpfi 1 5 to bpf board j201 gnd gnd gnd bpfo 5 1 to bpf board j202 b3 b2 b1 gnd gnd 5 1 to bpf board j203 gnd gnd gnd b5 b4 xvrt rant 1 21 22 2 to main-a unit j811 j951 14v agc alc nc r8v nc trvi satv blav gnd mck 14v 8v t8v nc -5v 5v nc blbv scpl mdat bstb from pll unit j801 s3lo p801 to main-...

  • Page 80

    8 - 7 1 8 16 9 1 9 18 10 • rf-a unit (bottom view).

  • Page 81

    8 - 8 50 26 25 1 51 75 76 100 33 23 1 11 44 34 12 22 1 4 8 5 1 8 16 9 1 1 8 16 9 4 8 5 1 8 16 9 75 51 1 26 50 100 76 25 1 12 24 13 33 44 12 23 22 34 1 11 gnd 1 15 2 16 to main-a unit j841 j1 nc 14v psel con1 dres 5v nc gnd 14v unlc con2 con0 pstb 5v 8v to rf-a unit j901 p81 2lo to rf-a unit j841 p80...

  • Page 82

    8 - 9 1 4 8 5 soldering point • pll unit (bottom view).

  • Page 83

    8 - 10 2 1 j352 spe ssp to display board j451 4 1 to ext tuner j641 ete et14 etst etky gnd 30 2 to dsp-a board j2001 29 1 j201 dtif gnd gnd gnd gnd gnd agc gnd -8v_ -8v_ -5v_ -5v_ 8v_ 8v_ gnd drif d5va d5va d5va dmaf gnd dtaf draf gnd gnd gnd gnd fmtl gnd 22 2 1 21 to crtl unit j7 j741 14v 14v t8v 5...

  • Page 84

    8 - 11 1 1 4 8 5 7 14 8 1 12 24 13 1 5 10 6 1 14 8 7 1 5 10 6 1 1 4 15 28 14 1 5 8 5 10 6 1 1 4 8 5 7 14 8 • main-a unit (bottom view).

  • Page 85

    8 - 12 121 180 1 60 10 11 1 1 1 7 14 8 1 7 14 8 7 14 17 16 8 20 120 181 240 61 1 32 10 1 1 1 9 16 8 1 1 1 1 8 1 1 1 4 8 5 4 8 5 8 5 1 4 1 1 7 8 14 7 5 8 4 1 1 1 8 5 1 1 4 8 5 4 4 8 5 14 8 7 9 8 28 16 9 15 14 4 8 5 7 14 8 28 15 1 14 8 16 9 7 14 8 11 20 1 8 16 1 1 1 4 8 5 4 8 5 8 16 9 9 8-7 dsp-a, mem...

  • Page 86

    8 - 13 gnd 1 29 2 to main-a unit j202 30 j2002 gnd r tdt ctfl dsfr md a t dsfw mck nc nc dsdr gnd m5v _ d gnd a grs gnd dsky msl1 txs ams dsrs a cks cals fmns mods dpgi nsqo gnd 3r3v _ d 3r3v _ d 30 2 29 to main-a unit j201 1 j2001 8v 8v - 5v - 5v - 8v - 8v gnd ag c gnd gnd gnd gnd gnd dtif gnd gnd ...

  • Page 87

    8 - 14 to filter unit to filter unit phv pgnd bla ck red to fil ter unit j1 p2 pao to rf-a unit j151 p1 pai pat 8 29 1 30 to main-a unit j771 2 j3 icl h5v 8v 14v a 14v 14v 14v 5v hv gnd gnd gnd gnd gnd pwrs ich 8v 14v a 14v 14v 14v 14v 5v nc gnd gnd gnd gnd gnd 8-8 pa unit (top view).

  • Page 88

    8 - 15 • pa unit (bottom view).

  • Page 89

    8 - 16 to chassis j4 to chassis j4 fhv fgnd bla ck red to pa unit ep5 b la pg n d c k to pa unit ep4 ph v r ed gnd 2 10 to ctrl unit j13 1 9 j3 l8s l3s l5s l2s gnd l7s l6s l1s l4s from pa unit j2 p2 pao from ctrl unit j1 ctin p1 8-9 filter unit (top view).

  • Page 90

    8 - 17 • filter unit (bottom view).

  • Page 91

    8 - 18 1 9 18 10 1 9 18 10 gnd 21 to ctrl unit j8 1 22 2 j5 3.5m 10m 18m vhf nc 14v co2 nvhf ci2 gnd gnd 7m 14m 24m gnd 14v co3 co1 ci3 ci1 gnd to ctrl unit j3 tuin p3 to ctrl unit j4 tuot p4 8-10 tuner board (top view).

  • Page 92

    8 - 19 • tuner board (bottom view).

  • Page 93

    8 - 20 1 4 8 5 1 9 18 10 1 8 16 9 1 4 8 5 1 7 14 8 1 1 4 8 5 7 14 8 1 8 1 4 8 5 16 9 1 16 17 32 64 49 33 48 1 to mf2 5 j11 t14v aw ax ay az to mf1 1 5 j10 t14v pw px py pz gnd 2 22 from tuner board j5 1 21 j8 3.5m 10m 18m vhf nc 14v co2 nvhf ci2 gnd gnd 7m 14m 24m gnd 14v co3 co1 ci3 ci1 gnd 9 1 10 ...

  • Page 94

    8 - 21 • ctrl unit (bottom view).

  • Page 95

    Clock gene ic2041 tc7shu04fu ic2042 tc7sh04fu x2041 cr-568 40mhz ic2001 adsp-21061lks-160 level conv ic2051 tc74vhc125ft timing ic2053 tc74hc02af ic2054 tc74vhc74ft level conv dsp level conv ic2072 tc74vhc541ft rom ic2071 sc-1387-1 level conv ic2061,ic2063 ic2065,ic2066 tc7set08fu ctfl rtdt nsqo dcw...

  • Page 96

    J2 c3 0.0047 44 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 82 81 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 15 13 12 11 10 9 8 7 6 5 4 3 2 1 p81/seg26 p82/seg27 p83/seg28 p84/seg29 p85/seg30 p86/seg31 p87/seg32 p90/seg33 p91/seg3...

  • Page 97

    10 - 2 240 239 238 237 236 235 234 233 232 231 230 229 228 227 226 225 224 223 222 221 220 219 218 217 216 215 214 213 212 211 210 209 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21...

  • Page 98

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 p62/an2 p61/an1 p60/an0 p57/int3 p56/pwm p55/cntr1 p54/cntr0 p53/srd y2 p52/sclk2 p51/sout2 p50/sin2 p47/srd y1 p46/s...

  • Page 99

    Afe m5v afe t8v 14va r8v –5v hv 3r3v_d h5v m5v 8v 14v alc 8v agc m5v 14v –8v h5v 8v 14va hv r8v –5v t8v agc alc po 5v forv pocv alc agc t8v m5v 8v 5v –5v r8v hv 14va h5v –8v t8v 14v 2if alc agc 3r3v 8v –5v –8v 8v m5v 8v 8v 5v –5v r8v hv 14va h5v –8v t8v 14v 2if alc agc 2if w702 w452 8v mico mice 8.2...

  • Page 100

    3lo rxf 14v rxf rxf pwrs_ seni rxf hv main-a unit (2) ete et14 etst etky spe ssp j662 j661 cp671 j681 33k r636 33k r632 m5v m5v_ cs1_ cs2_ m5v_ cs2_ m5v_ reset c3552 0.01 3r3v_d reset m5v astb byte mstb mr m5v 14v 8v m5v_ h5v_ 3r3v_d 0.01 c3503 unlc_ 3r3v p352 4.7k r638 4.7k r634 ma2s111 d632 47k r3...

  • Page 101

    100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 3 1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 r112 2k ...

  • Page 102

    R14 47 r13 47 q2 2sc1972 q3 2sc1972 c21 0.001 r20 10 r21 10 c23 0.001 r23 10 r24 10 l10 r27 10 r26 10 q4 2sc5125 q5 2sc5125 r42 5.6 r41 5.6 l7 lr-83 c25 200p c116 100p l6 lr-393 c58 0.001 l4 lr-143 l2 exc-eldr25c r16 100 r15 100 c12 0.0047 c11 0.0047 c7 0.0047 r10 680 q1 2sc1971 r5 390 r6 220 r7 4.7...

  • Page 103

    Mkr 1lob 14vb 1loa 14vl 8vl blbv 14vl r8v blav t/r2if 8vl 14vl r8v s2lo s3lo blav blbv 8vl 14vl r8v t8v mkr t8v 8vs blav blbv 8vs scpl satv t8v 8vl 14vl r8v t8v w362 w361 poff pre1 pre2 scpl blav alc t8v 8vl r8v agc 14vl –5v 5vl blbv satv agc t8v 8vl pre1 pre2 14vl poff bpfi bpfi 0.61 µ h l153 10p c...

  • Page 105

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