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Icom IC-F410 Service Manual

Other manuals for IC-F410: Instruction Manual
Manual is about: UHF FM TRANSCEIVER

Summary of IC-F410

  • Page 1

    Service manual uhf fm transceiver if410 if410s if420 if420s 6-9-16, kamihigashi, hirano-ku osaka 547-0002, japan a-5560si-su © 1999 by icom inc. If410 if410s if420 if420s cover420s 99.2.17 10:40 am page 1.

  • Page 2

    Introduction this service manual describes the latest service information for the ic-f410, ic-f410s, ic-f420 and ic-f420s uhf fm transceivers at the time of publication. To upgrade quality, any electrical or mechanical parts and internal circuits are subject to change without notice or obligation. D...

  • Page 3

    Table of contents section 1 specifications section 2 inside view section 3 disassembly instructions section 4 circuit description 4 - 1 receiver circuits .................................................................................................................................4 - 1 4 - 2 trans...

  • Page 4: Section 1

    All stated specifications are subject to change without notice or obligation. Mesurement method frequency coverage number of channels type of emission frequency stability operating temperature range power supply voltage current drain tx max. Power (approx.) rx max. Audio stand-by antenna connector d...

  • Page 5

    2 - 1 section 2 inside view af power amplifier (ic9: la4425) pll reference tcxo (x2: cr-601) i/o expander (ic13: bu4094bcf) af switching ic (ic11: bu4066bcf) vco circuit 2nd if filter (fi2) 2nd if filter (fi3) *1st mixer (q3: 3sk241) 1st if filter (fi1) fm if ic (ic1: ta31136fn) discriminator (x1: c...

  • Page 6

    3 - 1 section 3 disassembly instructions • opening case 1 unscrew 4 screws, a , and remove the bottom cover. 2 unscrew 2 screws, b , and remove the front case. 3 unscrew 10 screws, c , and remove 2 clips, d . 4 remove shield case, e . 5 unsolder 3 points, f , from the antenna connector. 6 lift the f...

  • Page 7: Section 4

    Section 4 circuit description 4 - 1 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 as resonator circuit while transmitting. The circuit does not allow transmit signals to enter receiver circuits. Rece...

  • Page 8

    4 - 2 4-1-5 af amplifier circuit (main unit) the af amplifier circuit amplifies the demodulated af sig- nals to drive a speaker. Af signals from the fm if ic (ic1, pin 9) are amplified at the af amplifier (ic7a) and then pass through the high-pass fil- ter (ic6) whose characteristics are controlled ...

  • Page 9

    4 - 3 4-2-3 drive amplifier circuit (main unit) the drive amplifier circuit amplifies the vco oscillating sig- nal to the level needed at the power amplifier. The rf signal from the buffer amplifier (q30) passes through the t/r switch (d18) and is amplified at the buffer (q21, q20) and drive (q19) a...

  • Page 10

    4-4 power supply circuits 4-4-1 voltage lines (main unit) 4-5 port allocations 4-5-1 cpu (front unit; ic1) cpu (ic1)—continued 4 - 4 description the voltage from a dc power supply. The same voltage as the vcc line which is con- trolled by the power switching circuit (q14, q15). When the [power] swit...

  • Page 11

    4 - 5 4-5-2 i/o expander ic (1) ic12 (main unit) (2) ic13 (main unit) output tunable band pass filter control signals. Output port for tunable band pass filter control signal while receiving. Output power control signal while transmitting. Output port for reference frequency control voltage. 2, 3, 1...

  • Page 12: Section 5

    5-1 preparation ‘ ‘ required test equipment ‘ ‘ adjustment frequency data before starting the adjustment, back up the original frequen- cy data and program adjustment frequency at right using the optional programming software (ex-2057 rev. 1.0 or later for ic-f410/f420, cs-f300s for ic-f410s/f420s),...

  • Page 13

    5 - 2 memory ch : 1 power(hi) : 174 ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ – – – – – – – – – power(l2) : 88 ‘ ‘ ‘ ‘ ‘ ‘ ‘ – – – – – – – – – – – – – – power(l1) : 44 ‘ ‘ ‘ – – – – – – – – – – – – – – – – – – – m o d n : 68 ‘ ‘ ‘ ‘ ‘ – – – – – – – – – – – – – – – – – m o d w : 137 ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ – – – – – – – –...

  • Page 14

    5 - 3 5-2 pll adjustment pll lock voltage adjustment adjustment adjustment condition measurement value point unit location unit adjust 1 2 3 4 • operating frequency: (ch1) [l-band] : 400.00000 mhz [ml-band] ∏ : 440.00000 mhz [ml-band] Ò : 450.00000 mhz [mh-band] : 470.00000 mhz [h-band] : 490.00000 ...

  • Page 15

    5 - 4 reference frequency [txf set] output power [power (hi)] [power (l2)] [power (l1)] fm deviation [mod n] or [mod w] adjustment adjustment condition measurement value unit location 5-3 trimmer adjustment select an operation using [ ↑ ] / [ ↓ ] keys, then set specified value using [ ← ] / [ → ] ke...

  • Page 16

    *this output level of a standard signal generator (ssg) is indicated as ssg’s open circuit. Dtcs wave form receive [bpf t1]– [bpf t4] squelch level [sql] • operating frequency: (ch1) [l-band] : 400.00000 mhz [ml-band] ∏ : 440.00000 mhz [ml-band] Ò : 450.00000 mhz [mh-band] : 470.00000 mhz [h-band] :...

  • Page 17

    5 - 6 5-4 beep adjustment beep audio adjustment adjustment adjustment condition measurement value point unit location unit adjust 1 • operating frequency: any • connect an audio generator to pin 25 (main unit; j2) and set as: 1 khz / 550 mv • squelch : open • volume level : 1 • receiving rear panel ...

  • Page 18: Section 6

    C : lcd type (f410/f420), e : led type (f410s/f420s) [front unit] [front unit] ic1 1140007911 s.Ic hd6433875b20h ic2 1110003500 s.Ic s-80742sl-a6-t1 ic3 1130008670 s.Ic 25lc160t-i/sn q1 1530002060 s.Transistor 2sc4081 t107 r q3 1590000440 s.Transistor dta143zua t106 c 1530002060 s.Transistor 2sc4081...

  • Page 19

    [front unit] s.=surface mount c : lcd type (f410/f420), e : led type (f410s/f420s) w1 7030000010 s.Jumper mcr10ezhj jpw (000) w2 7030003860 s.Jumper erj3ge jpw v w3 8900007680 cable opc-741 ep1 0910049322 pcb b 5042b c 0910051231 pcb b 5289a e ep2 8930044930 lcd contact srcn-2055-sp-n-w c only [fron...

  • Page 20

    ∏ : pmr, Ò : lmr [main unit] [main unit] s.=surface mount ic1 1110003490 s.Ic ta31136fn (d,el) ic2 1180001250 s.Ic ta7808f (te16l) ic3 1180000970 s.Ic an78l05m-(e1) ic4 1110002700 s.Ic njm2904m-t1 ic5 1150001670 ic s-au27al/sc-1322 ∏ [l-band] 1150001680 ic s-au27am/sc-1323 ∏ [ml/[mh-band] 1150001690...

  • Page 21

    ∏ : pmr, Ò : lmr [main unit] [main unit] s.=surface mount r10 7030003520 s.Resistor erj3geyj 472 v (4.7 k Ω ) r11 7030003720 s.Resistor erj3geyj 224 v (220 k Ω ) r12 7030003560 s.Resistor erj3geyj 103 v (10 k Ω ) r13 7030003720 s.Resistor erj3geyj 224 v (220 k Ω ) r14 7030003560 s.Resistor erj3geyj ...

  • Page 22

    ∏ : pmr, Ò : lmr [main unit] [main unit] s.=surface mount r166 7030003560 s.Resistor erj3geyj 103 v (10 k Ω ) r167 7030003320 s.Resistor erj3geyj 101 v (100 Ω ) r168 7030003680 s.Resistor erj3geyj 104 v (100 k Ω ) r169 7030003440 s.Resistor erj3geyj 102 v (1 k Ω ) r170 7030003540 s.Resistor erj3geyj...

  • Page 23

    ∏ : pmr, Ò : lmr [main unit] [main unit] s.=surface mount c22 4030011770 s.Ceramic c1608 ch 1h 060b-t-a [l-band] 4030009920 s.Ceramic c1608 ch 1h 050b-t-a [ml/h-band] 4030009910 s.Ceramic c1608 ch 1h 040b-t-a [mh-band] c23 4030009520 s.Ceramic c1608 ch 1h 020b-t-a [l-band] 4030009540 s.Ceramic c1608...

  • Page 24

    S.=surface mount 6 - 7 ∏ : pmr, Ò : lmr [main unit] [main unit] c137 4030006850 s.Ceramic c1608 jb 1h 471k-t-a c138 4030006860 s.Ceramic c1608 jb 1h 102k-t-a c139 4030008230 s.Ceramic c1608 uj 1h 080d-t-a [l-band] 4030008210 s.Ceramic c1608 uj 1h 060d-t-a [ml-band] 4030008190 s.Ceramic c1608 uj 1h 0...

  • Page 25

    S.=surface mount c272 4030007090 s.Ceramic c1608 ch 1h 470j-t-a c273 4030007090 s.Ceramic c1608 ch 1h 470j-t-a c274 4030007090 s.Ceramic c1608 ch 1h 470j-t-a c275 4030007090 s.Ceramic c1608 ch 1h 470j-t-a c276 4030007090 s.Ceramic c1608 ch 1h 470j-t-a c277 4030007090 s.Ceramic c1608 ch 1h 470j-t-a c...

  • Page 26

    7 - 1 section 7 mechanical parts [front unit] ref no. Order no. Description qty. J1 6450001470 connector 95003-2881 1 w3 8900007680 cable opc-741 1 ds1 5030001540 lcd ld-hu10140j 1 ep2 8930044930 lcd contact srcn-2055-sp-n-w 1 mp1 8210015090 2055 lcd reflector c only 1 8210016090 2266 reflector e on...

  • Page 27

    7 - 2 mp3 (c) mp4 (c) front unit w3 (f) j1 (f) mp7 (c) mp1 (c) mp7 (c) mp7 (c) mp4 (m) mp1 (m) mp2 (m) mp7 (c) mp8 (m) mp7 (c) mp11 (c) mp10 (m) w6 (m) j1 (m) mp9 (m) ep3 (m) mp12 (m) mp5 (m) mp15 (m) mp16 (m) mp13 (m) mp6 (m) mp11 (m) main unit (bottom side) mp3 (m) mp7 (c) j1 (c) mp9 (c) sp1 (c) m...

  • Page 28

    8 - 1 section 8 semi-conductor information 2sb1132 r (symbol: barb) 2sb1143 s 2sc4081 r (symbol: br) 2sc4215 o (symbol: qo) 2sc4703 se (symbol: se) • transistors and fet's 2sc5107 o (symbol: mf) 2sc5110 o (symbol: mgo) 2sd1664 q (symbol: daq) 2sj144 gr (symbol: vg) 2sj377 (symbol: 4l) 2sk241 r (tx) ...

  • Page 29

    9 - 1 section 9 board layouts 9-1 front unit (ic-f410/f420) ¡ ¡ top view 8v 1 7 2 8 afo mice gnd clone ptt mic hanger to microphone j1.

  • Page 30

    9 - 2 1 39 2 40 5v afo si opt3 opt2 opt1 opv3 opv2 opv1 ptt pttin det pwon exptt dimin so sck sd lvin gnd to main unit j3 j2 8v cpu5v gnd opint opcs busy beepout tone beep dtcsin rfatt nois unlk exen exst dast plst vin temp mic ¡ ¡ bottom view.

  • Page 31

    9 - 3 9-2 front unit (ic-f410s/f420s) ¡ ¡ top view 8v 1 7 2 8 afo mice gnd clone ptt mic hanger to microphone j1.

  • Page 32

    9 - 4 1 39 2 40 5v afo si opt3 opt2 opt1 opv3 opv2 opv1 ptt pttin det pwon exptt dimin so sck sd lvin gnd to main unit j3 j2 8v cpu5v gnd opint opcs busy beepout tone beep dtcsin rfatt nois unlk exen exst dast plst vin temp mic ¡ ¡ bottom view.

  • Page 33

    9 - 5 9-3 main unit ¡ ¡ top view 5v afo si opt3 opt2 opt1 opv3 opv2 opv1 ptt pttin det pwon exptt dimin so sck so lvin gnd 8v cpu5v gnd opint opcs busy beepout tone beep dtcs rfatt nois unlk exen exst dast plst vin temp mic j3 2 40 to front unit 1 39 gnd 5v hv micmute afonop beepout rxmute det afout...

  • Page 34

    9 - 6 ¡ ¡ bottom view sp.

  • Page 35

    10 - 1 section 10 block diagram for rev d1 t8v r8v q1 q2 rfatt t1 t2 d3, d4, d5 d7 d8 r8v r8v q3 q4 d13 n/w sw n/w sw n/w sw t3 t4 d9 d10 fi1 46.35 mhz x1 fi2 fi3 nwc d12 q5 det afout ic6c, d q22 5v 5v b ic4a 8v rmut txc ic12 ic11 ic11 q32 ic9 hv j1 1 2 j2 h g mic afo micin micout 5v ic8b a mmut afa...

  • Page 36

    11 - 1 section 11 voltage diagram ¡ ¡ front unit light on :7.5v light off:5.5v 5.0v 5.0v 5.0v 7.6v 4.9v 3.9v 1.7v 5.0v measurement conditions digital multimeter:50k Ω /vdc oscilloscope :20mhz 3.2v 2.3v 1.4v 6.8mhz 4.2v 2.3v 0.4v dtcs 0.7v ctcss 2.35v 4.0v 0mv -70mv 70mv 27.5mv beep is set -27.5mv 0m...

  • Page 37

    5 6 7 8 9 10 15 14 13 12 opt2 opt1 mic in sig out opv1 opv2 opv3 busy mic out ptt out ptt in 3 2 1 4 11 opt3 gnd 16 j4 17 18 19 20 21 22 23 24 25 26 27 28 29 30 sck si so opint opcs af out det rxmut af on mimut hv 5v gnd to option beepo w6 dc cable ep3 ep3 gnd vcc c84 470 d16 dsa3a1 c83 0.1 c82 0.01...

  • Page 38: Complete View

    C22 6p ( l-band ) 5p ( ml,h-band ) 4p ( mh-band ) r11 220k c309 47p c19 0.001 t1 d7 hvu350 c23 2p (l-band ) .5p (ml/mh-band) l7 15nh l8 15nh r12 10k c28 1.5p ( l-band ) 0.5p (ml/mh-band) c25 c24 1p ( l-band ) 0.5p (other) r13 220k c27 47p d8 hvu350 14 0k c26 7p ( l-band ) 6p ( ml-band ) 5p ( mh/h-ba...

  • Page 39

    5 6 7 8 9 10 15 14 13 12 opt2 opt1 mic in sig out opv1 opv2 opv3 busy mic out ptt out ptt in 3 2 1 4 11 opt3 gnd 16 j4 17 18 19 20 21 22 23 24 25 26 27 28 29 30 sck si so opint opcs af out det rxmut af on mimut hv 5v gnd to option beepo w6 dc cable ep3 ep3 gnd vcc c84 470 d16 dsa3a1 c83 0.1 c82 0.01...

  • Page 40

    6-9-16, kamihigashi, hirano-ku, osaka 547-0002, japan phone : 06 6793 5302 fax : 06 6793 0013 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 : 0122...

  • Page 41: Service

    Service manual uhf fm transceiver if410 if410s if420 if420s 6-9-16, kamihigashi, hirano-ku osaka 547-0002, japan a-5560si-su © 1999 by icom inc. If410 if410s if420 if420s cover420s 99.2.17 10:40 am page 1.