Icom IC-F4001 Service Manual

Summary of IC-F4001

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    S-14617xz-c1 nov. 2009 uhf transceivers.

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    This service manual describes the latest technical information for the ic-f4001/ic-f4002/ic-f4003/ic-f4006/ ic-f4008 uhf transceivers at the time of publication. Never connect the transceiver to an ac outlet or to a dc power supply that uses more than the specified voltage. This will ruin the transc...

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

  • Page 4: Section 1. Specifications

    1 - 1 section 1. Specifications m general • frequency range : 400–470 mhz • number of conventional channels : 16 channels • type of emission : [eur] wide: 16k0f3e (25.0 khz) middle: 14k0f3e (20.0 khz) narrow: 8k50f3e (12.5 khz) except [eur] wide: 16k0f3e (25.0 khz) narrow: 11k0f3e (12.5 khz) • anten...

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    1 - 2 m receiver • sensitivity : 0.25 µv typ. At 12 db sinad except [eur], [uk] –4 dbµv (emf) typ. At 20 db sinad [eur], [uk] • squelch sensitivity (at threshold) : 0.25 µv typ. Except [eur], [uk] –4 dbµv (emf) typ. [eur], [uk] • intermodulation : 70 db min. 74 db typ. Except [eur], [uk] 65 db min. ...

  • Page 6: Section 2. Inside

    2 - 1 section 2. Inside views led ctrl (q82,q83) vco • main-a unit (top view) cpu5 line regulator (ic54) +5v line regulator (q76) pll ic (ic2) mic/af line sw (ic56) apc amp (ic1) tcxo (x2) tone filter sw (q52) tone lpf (ic59) hpf (ic58) mic gain controller (ic62) 2nd if bpf (fi2) 2nd if bpf (for nar...

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    2 - 2 clone buffer (q81, d51) tuned bpf (d24, d26) • main-a unit (bottom view) drive amp (q2) power amp (q1) pre-drive amp (q3) pre-amp (q4) rf amp (q22) reset ic (ic53) eeprom (ic52) af amp (ic55) if demodulator ic (ic3) xtal bpf (fi1) agc ctrl (q21) s5 line regulator (q71) ripple filter (q15) r5 l...

  • Page 8: Section 3. Disassembly

    3 - 1 section 3. Disassembly instruction be careful to not pull out the speaker wire when separating the chassis and the front panel. For easy separation of the chassis use a suction lifter to lift the bottom of the chassis up. 1. Removing the chassis 1) remove the ant connector nut and 2 knobs. 2. ...

  • Page 9: Section 4. Circuit

    4 - 1 • rf circuits • 1st if circuits • 2nd if circuits section 4. Circuit description lpf ant sw d3,d22 rf amp q22 bpf d28 d24,d26 bpf t2 t1 from the tx circuits to the 1st if circuits ant lo sw d5,d6 q23 bpf xtal fi1 if amp q24 buff q8 buff q10 lpf rx vco to the tx circuits from the rf circuits to...

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    4 - 2 • rx af circuits af am p ic55 tpa0211dgn j52 ic62 rx mute sp1 hpf ic58 af am p ic12 ta7368f hpf ic58 j53 int.Speaker ext.Speaker 1 2 lpf ic58 lpf ic59 the demodulator circuits ic56 af line sw cd4066 afon afo rmut 1 d/a converter ic57 r2a20178 rx af circuits the demodulated af signal from the i...

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    4 - 3 • tx amplifiers and apc circuit • frequency synthesizer circuits 4-4 voltage block diagram lpf pwr det d1,d2 mute sw q6 ant sw d3,d22 pwr am p q1 apc amp ic1 drive am p q2 drive pre q3 pre am p q4 lpf t1 tmut ant from the tx vco to the rx circuits lpf lo sw d5,d6 q13,d12 q14,d16 filter loop pl...

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    4 - 4 4-5 port allocations • cpu (ic51) • d/a converter (ic57) pin no. Line name description i/o 1 cdec tone signal (ctcss/dtcs) decoding input. I 2 stone tone signal (5/2 tone, dtmf, biis) decoding/encoding . I/o 13 csft clock frequency shift. H=clock frequency is shifted. O 14 nwc r x m o d e ( n ...

  • Page 13: Section 5. Adjustment

    Section 5. Adjustment procedure 5 - 1 ¤ jig cable equipment grade and range equipment grade and range cloning software cs-f3000 cloning software (revision 1.0 or later) jig cable modifi ed opc-478/u/uc (see the illusted below) rf power meter (50 Ω terminated) measuring range : 0.1–6 w frequency rang...

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    5 - 2 ¤ connection fm deviation meter speaker (8 Ω ) to the antenna connector attenuator 30 db rf power meter 0.1– 6 w/50 Ω frequency counter standard signal generator –20 to 90 dbµ (–127 to –17 dbm) never transmit while an ssg is connected to the antenna connector. To [sp] to [mic] jig cables to [s...

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    ¤ adjustment channels before starting the adjustments, use the cloning software to create the same cloning fi le as shown below, then upload it into the transceiver. 5 - 3 select “middle” for [eur] versions: when adjusting “deviation” in the middle band, change the bandwidth to “middle” as shown bel...

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    5 - 4 ¤ adjustment utility deviation click to open the “i/o check window” adj. Channel rx sensitivity mod. Balance ctcss\dtcs ref. Frequency squelch lock voltage (adjustment) tx output power if the below window appears, the utility is password-protected. Enter the password to open the "adjust utilit...

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    5 - 5 adjustment transceiver’s condition operation adjustment item value pll lock voltage -adjustment- 1 – • connect an rf power meter to the antenna connector. – – (rx) 2 • ch. : 1 • receiving • select the item [rx lva] , then push [enter]. [rx lva] 1.0 v (tx) 3 • ch. : 1 • transmitting • select th...

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    5 - 6 adjustment transceiver’s condition operation adjustment item value tx output power (hi power) 1 • ch. : 4 • transmitting • connect an rf power meter to the antenna connector. [power (hi)] 4.0 w (l2 power) 2 • ch. : 5 • transmitting [power (l2)] 2.0 w (l1 power) 3 • ch. : 6 • transmitting [powe...

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    5 - 7 adjustment transceiver’s condition operation adjustment item value rx sensitivity 1 • ch. : 11 • receiving 1) c o n n e c t a n s s g t o t h e a n t e n n a connector and set it as; frequency : 435 mhz level* : 20 dbµ (–87 dbm) modulation : 1 khz deviation : ±3 khz 2) put the cursor on the ad...

  • Page 20: Section 6. Parts

    6 - 1 section 6. Parts list ic1 1110002751 s.Ic ta75s01f(te85r,f) t 32.5/8.8 ic2 1140005991 s.Ic mb15a02pfv1-g-bnd-ere1 t 42.9/24.7 ic3 1110007320 s.Ic njm2591v-te1-#zzzb b 45.8/38.9 ic51 1140015230 s.Ic r4f20102nfa (empty) b 77.7/38 ic52 1130015240 s.Ic r1ex24016ata00a b 85/25.2 ic53 1110007620 s.I...

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    6 - 2 ref parts description m. H/v no. No. Location [main-a unit] r108 7030005080 s.Res erj2gej 823 x (82k) b 19.2/29 r109 7030005530 s.Res erj2gej 100 x (10) b 21.2/31 r110 7030004980 s.Res erj2gej 101 x (100) b 22.1/25.4 r112 7030004970 s.Res erj2gej 470 x (47) b 25.8/25.4 r113 7030007300 s.Res er...

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    6 - 3 ref parts description m. H/v no. No. Location [main-a unit] c53 4030014260 s.Cer c1005 jb 1h 331k-t b 42.7/10.7 c54 4030019740 s.Cer c1005 jb 1h 102k-t b 42.7/9.8 c55 4030009740 s.Cer c1005 ch 1h 100c-t b 39.1/12.5 c57 4030014260 s.Cer c1005 jb 1h 331k-t b 37.3/10.8 c59 4030019650 s.Cer c1005 ...

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    6 - 4 ref parts description m. H/v no. No. Location [main-a unit] c391 4030011320 s.Cer c1005 ch 1h 470j-t b 37.3/46.3 c393 4520000020 s.Nio nojc227m006 b 19.8/40.9 c395 4520000020 s.Nio nojc227m006 t 21.7/37.1 c397 4030019740 s.Cer c1005 jb 1h 102k-t t 26/36.5 c398 4030019740 s.Cer c1005 jb 1h 102k...

  • Page 24: Section 7. Mechanical

    7 - 1 [chassis parts] ref order description qty. No. No. J1 6910021491 ant connector 106-1 1 sp1 2510001560 045p01202-02 1 w1 8900009640 opc-963 1 ep1 0910065992 b-7262b 1 mp1 8010021710 3285 chassis 1 mp2 8210026010 3285 front panel (incl. Mp3–9) 1 mp3 8210025830 3285 ptt panel 1 mp4 8930080110 328...

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    7 - 2 mp10(c) mp6(c) mp7(c) mp18(c) mp33(c) s54(m) mp16(c) mp11(c) mp12(c) mp9(c) mp3(c) mp4(c) mp5(c) mp24(c) mp27(c) mp25(c) sp1(c) mp2(c) mp8(c) mp1(c) mp23(c) mp22(c) ant pcb j1(c) mp13(c) mc51(m) mp2(m) mp34×2(c) mp34×2(c) mp32(c) mp32(c) j52(m) mp6(m) j51(m) mp21(c) s51(m) mp20×2(c) mp31×2(c) ...

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    8 - 1 section 8. Board layouts the combination of top side and bottom side of this • main-a unit (top view) [speaker microphone jack] int. Sp 2 1 c20 c21 c22 c23 52 c 42 c c26 c27 c28 c71 c73 c74 c77 c78 38 c 18 c c84 c85 c86 c87 c88 c89 c90 c92 c94 c101 c102 c103 c104 c105 c106 c107 c108 c110 c111 ...

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    8 - 2 the combination of top side and bottom side of this • main-a unit (bottom view) mc51 [lower key] [upper key] [ptt switch] [rotary selector] [volume control] j52 j51 c1 c2 c3 c4 c5 c6 c7 c8 c9 c10 c11 c12 c13 c14 c18 c19 c29 c36 c37 c38 c39 c45 c47 c51 c52 c53 c54 c55 c57 c59 c60 c61 c62 c63 c6...

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    9 - 1 section 9. Block diagram lpf lpf pwr det d1:rb886cs d2:rb886cs mute sw ldta144ee q6 ant sw d 22:hvd142a d3:hvd142a pwr am p q1 rd07mus2b tx/rx sw d6:hvd142a d5:hvd142a q13:2sc4226 d12:hvd350b q14:2sc4226 d16:hvd350b fil ripple q15 2sc4116 vco sw q11:ldtc144ee fil loop pll ic ic2 m b15a02 x3 q2...

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    10 - 1 section 10. Voltage diagram *: refer to the parts list for the value and name of component. Main-a unit (1/2) j53 1 2 3 4 cp05s cp6 t5v r5c 22k r454 10k r433 33k r386 68k r344 68k r341 r1ex24016ata00a ic52 1 a0 2 a1 3 a2 4 vss 5 sda 6 scl 7 wp 8 vcc sw-167 s53 tmut r310 22k disc lm2902pwr ic5...

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    10 - 2 *: refer to the parts list for the value and name of component. Main-a unit (2/2) q3 2sc3356 l15 12n q26 2sc4116 r17 270 q8 2sc5107 r12 10k r45 100 r13 100k r76 1k 1k r4 1k r3 q22 3sk293 c134 1 sva 18.3n l7 r52 560 r146 47 r15 470k r31 100 r56 6.8k r54 6.8k r83 56 rd01mus1 q2 mb15a02pfv1 ic2 ...

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    6f no.68, sec. 1 cheng-teh road, taipei, taiwan, r.O.C. Phone : +886 (02) 2559 1899 fax : +886 (02) 2559 1874 url : http://www.Asia-icom.Com e-mail : sales@asia-icom.Com zac de la plaine 1 rue brindejonc des moulinais bp 5804 31505 toulouse cedex, france phone : +33 (5) 61 36 03 03 fax : +33 (5) 61 ...

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    1-1-32, kamiminami, hirano-ku, osaka 547-0003, japan s-14617xz-c1 © 2009 icom inc..