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Icom IC-F610 Service Manual

Summary of IC-F610

  • Page 1

    Service manual uhf transceiver if610 if620 if621.

  • Page 2

    Eur mte eur gen mtg trg usa mtu tru usa usa tru usa gen trg europe europe (mpt) europe (biis) general general (mpt) general (ltr) u.S.A. U.S.A. (mpt) u.S.A. (ltr) u.S.A. (biis) u.S.A. U.S.A. (ltr) u.S.A. (biis) general general (ltr) ic-f610 ic-f620 ic-f621 introduction this service manual describes ...

  • 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 transmitter ci...

  • Page 4: Section 1  Specifications

    S section 1 specifications 1 - 1 usa/gen eur general measurement method eia-152/204d or tia-603 ets 300 086 frequency coverage [l-band]: 400.000–430.000 mhz [m-band]: 440.000–490.000 mhz [h-band]: 480.000–512.000 mhz [usa], 480.000–520.000 mhz [eur]/[gen] type of emission [n/w]: 8k50f3e/16k0f3e (12....

  • Page 5: Section 2

    Section 2 inside view 2 - 1 ( ic3: ra30h4047m-21 [l] ra30h4452m-21 [m]-25w, [h] ra45h4452m-21 [m]-45w 8v regurator (ic9: ta7808f) af power amplifier (ic8: la4425a) cpu 5v regurator* (ic10: an78l05m) vco circuit cpu* (ic20: hd64f2268tf) antenna switch/ low-pass filter circuits 1st mixer* (q3: 3sk272)...

  • Page 6: Section 3

    Section 3 disassembly instructions 3 - 1 • removing the front unit ➀ unscrew 4 screws a , and remove the bottom cover. ➁ disconnect the flat cable b from j2. ➂ unscrew 2 screws c , and remove the front unit. A a b c c j2 • removing the main unit ➀ unsolder 1 point d from the plate, and remove the pl...

  • Page 7: Section 4

    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. Received signals from the antenna ...

  • Page 8

    4 - 2 the 2nd if signal from the 2nd mixer section (ic1, pin 3) passes through a ceramic filter (fi2) to remove unwanted heterodyned frequencies. It is then amplified at the limiter amplifier section (ic1, pin 5) and applied to the quadrature detector section (ic1, pins 10, 11) to demodulate the af ...

  • Page 9

    4 - 3 4-2 transmitter circuits 4-2-1 microphone amplifier circuit (main unit) the microphone amplifier circuit amplifies audio signals within +6 db/octave pre-emphasis characteristics from the microphone to a level needed for the modulation circuit. The af signals (mic) from the microphone (front un...

  • Page 10

    4-3 pll circuits 4-3-1 pll circuit a pll circuit provides stable oscillation of the transmit fre- quency and receive 1st lo frequency. The pll output com- pares the phase of the divided vco frequency to the refer- ence frequency. The pll output frequency is controlled by the divided ratio (n-data) o...

  • Page 11

    4 - 5 4-5 other circuits 4-5-1 compander circuit (main unit) ic-f610 series have compander circuit which can improve s/ n ratio and become wide dynamic range. The circuit is com- posed in the compander ic (ic14). (1) in case of receiving the demodulated af signals from the fm if ic (ic1, pin 9) are ...

  • Page 12

    4 - 6 4-6-3 cpu (main unit; ic2) pin number port name description 1 dsda i/o port for data signal to the d/a con- verter (ic7). 2 dast outputs strobe signals to the d/a con- verter (ic6). 8, 9 linh, lcs output lcd control signals to the lcd driver (front unit; ic1). 10 lsck outputs clock signal to t...

  • Page 13

    4 - 7 pin number port name description 76 xtxd input port for the map27 data signals from the connected unit via the exter- nal connector (j9). 77 xrxd outputs the map27 data signals for the connected unit via the external connector (j9). 79 ntxd outputs the nmea data signals for the connected unit ...

  • Page 14: Section 5

    M required test equipment equipment grade and range equipment grade and range dc power supply output voltage : 13.6 (13.2) v dc current capacity : 20 a or more audio generator frequency range : 300–3000 hz measuring range : 1–500 mv fm deviation meter frequency range : dc–600 mhz measuring range : 0...

  • Page 15

    5 - 2 cs-f500 adj rev.2.0 file com 1: open option connect reload (f5) disp para [a / d] vin : 156 : 9ch : 12.24 v temps : 187 : bbh : 30.81 'c lvin : 57 : 32h : 0.98 v sd : 36 : 24h : 0.71 v power (hi) : 181 [ # # # # # # # # # # # # # # – – – – – – ] power (l2) : 120 [ # # # # # # # # # – – – – – –...

  • Page 16

    5 - 3 cs-f500 adj rev.1.0 file com 1: open option connect reload (f5) disp para [a / d] vin : 156 : 9ch : 12.24 v temps : 187 : bbh : 30.81 'c lvin : 57 : 32h : 0.98 v sd : 36 : 24h : 0.71 v power (hi) : 181 [ # # # # # # # # # # # # # # – – – – – – ] power (l2) : 120 [ # # # # # # # # # – – – – – –...

  • Page 17

    5 - 4 : transceiver's connection state : reload adjustment data : receive sensitivity measurement : connected dc voltage note: 1 5 4 6 10 11 12 15 9 14 1 2 3 4 9 10 : pll lock voltage : operating channel select : rf output power : modulation balance 5 6 7 8 11 12 : fm deviation : ctcss/dtcs deviatio...

  • Page 18

    Fm deviation meter (dc measurable) attenuator 50 db or 60 db to the mic connector to the antenna connector to dc cable ic-f600 series to an rs-232c port db9 female plug personal computer standard signal generator –127 to –17 dbm (0.1 v to 32 mv) caution: do not transmit while ssg is connected to the...

  • Page 19

    5 - 6 5-2 pll adjustment adjustment adjustment condition measurement value adjustment unit location unit adjust pll lock voltage 1 • operating ch • receiving : ch1 main c o n n e c t a d i g i t a l multimeter or an oscil- loscope to the check point, "lv". 1.0 v main c133 2 • transmitting 1.1 v c134...

  • Page 20

    5 - 7 adjustment adjustment condition measurement value unit location reference frequency [txf] 1 • operating ch : ch7 rear panel loosely couple a frequency counter to the antenna con- nector. 430.0000 mhz [l] 490.0000 mhz [m] 520.0000 mhz [h] • connect an rf power meter or 50 Ω dummy load to the an...

  • Page 21

    5 - 8 adjustment adjustment condition measurement value unit location rx sensitivity [bpf t1]– [bpf t4] 1 • operating ch : ch1 rear panel connect a sinad meter with a 4 Ω load to the external [sp] jack. Minimum distortion level • connect an ssg to the antenna connector and set as: frequency level mo...

  • Page 22: Section 6

    6 - 1 section 6 parts list m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) [front unit] ref order description m. H/v no. No. Location [front unit] ref order description m. H/v no. No. Location ic1 1130010800 s.Ic lc75824w b 80.9/24.4 ic2 1130008560 s.Ic tc75s51f (te85l) b...

  • Page 23

    S.=surface mount 6 - 2 m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) [main unit] ref order description m. H/v no. No. Location [main unit] ref order description m. H/v no. No. Location q24 1590000430 s.Tr dtc144eua t106 t 16.7/68.3 q25 1540000550 s.Tr 2sd1664 t100q b 26...

  • Page 24

    S.=surface mount 6 - 3 m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) [main unit] ref order description m. H/v no. No. Location [main unit] ref order description m. H/v no. No. Location r62 7030003570 s.Res erj3geyj 123 v (12 k Ω ) [25w] t 50/64.7 7030003600 s.Res erj3ge...

  • Page 25

    S.=surface mount 6 - 4 m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) [main unit] ref order description m. H/v no. No. Location [main unit] ref order description m. H/v no. No. Location r267 7030003600 s.Res erj3geyj 223 v (22 k Ω ) b 53.1/28.8 r268 7030003650 s.Res erj3...

  • Page 26

    S.=surface mount 6 - 5 m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) [main unit] ref order description m. H/v no. No. Location [main unit] ref order description m. H/v no. No. Location c114 4030006990 s.Cer c1608 ch 1h 080d-t [l], [h] t 62.6/37.8 4030007010 s.Cer c1608 ...

  • Page 27

    S.=surface mount 6 - 6 m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) [main unit] ref order description m. H/v no. No. Location [main unit] ref order description m. H/v no. No. Location c321 4030011600 s.Cer c1608 jb 1e 104k-t t 86.7/22.5 c322 4030006900 s.Cer c1608 jb 1...

  • Page 28: Section 7

    F1 5210000120 fuse fgb 15a [25w] 2 5210000080 fuse fgb 20a [45w] 2 mc1 optional product microphone hm-100n 1 w1 optional product cable opc-345 [25w] 1 optional product cable opc-1132 [45w] 1 w2 8930000730 cable opc-049 1 mp1 8010019260 2633 mobil bracket 1 mp3 8820000530 flange volt m4 × 8 ni 4 mp4 ...

  • Page 29

    7 - 2 mp3 (c) mp5 (c) mp4 (c) mp2 (f) ds12 (f) ep2 (f) mp1 (f) mp3 (f) mp3 (f) mp4 (f) front unit w1 (f) j1 (f) mp12 (c) mp1 (c) mp13 (c) mp11 (c) mp5 (m) w1 (f) mp2 (m) mp3 (m) mp11 (c) mp6 (m) mp13 (c) mp9 (c) ws1 (c) mp8 (m) w2 (m) j4 (m) mp14 (m) mp20 (m) mp1 (m) main unit mp4 (m) mp13 (m) mp11 ...

  • Page 30: Section 8

    8 - 1 section 8 semi-conductor information • transsistors and fet’s • diodes b c e b e c b e c b e c b e c b e c b e c b c e d g s g g d d s s s d g g s d g1 g2 s d d s g2 g1 b e c b e c b e c e1 b1 b2 c1 c2 e1 e2 b2 c1 b1 c2 2sb1132 t100 r 2sc3356 r24 t2b 2sc4116 bl 2sc4213 b 2sc4215 o 2sc4226 t1 r...

  • Page 31: Section 9

    Section 9 board layouts 9-1 front unit • top view 9 - 1 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 0 horizonal 5 10 15 0 25 30 20 v er tical 8v 2 8 to microphone 1 7 j1 afo mice gnd clo ptt mic cli p0 af volume p1 p2 p3 p4.

  • Page 32

    5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 0 horizonal 5 10 15 0 25 30 20 v er tical 1 16 48 33 32 17 49 64 1 to main unit j2 19 2 20 j2 gnd pwr linh lcs lck lso afvi cli gnd mic 8v 5v kr0 kr1 kr2 fsw horn clo ptt afo 9 - 2 • bottom view (front unit).

  • Page 33

    5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 0 horizonal 5 10 15 0 25 30 35 20 45 50 55 40 65 70 75 60 80 90 95 100 85 105 v er tical 1 4 8 5 1 4 8 5 1 12 24 13 1 10 20 11 1 8 16 9 1 4 8 5 ant j1 w1 gnd ic3 to dc power hv 19 to front unit j2 1 20 2 j2 gnd pwr linh ...

  • Page 34

    5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 0 horizonal 5 10 15 0 25 30 35 20 45 50 55 40 65 70 75 60 80 90 95 100 85 105 v er tical 1 4 8 1 7 14 8 5 12 11 1 1 7 14 8 23 33 22 44 34 1 25 26 50 51 75 76 100 9 - 4 • bottom view (main unit).

  • Page 35: Section 10

    Section 10 block diagram data bus line control line rx line voltage line tx line common line explanatory notes q32 dtc144eu sw dim horn disc det ptt in acc q33 dtc144eu sw dim horno eptt sw line mod vcc dsa3a1 d22 protect md1 pwon q41 dta144eu d28 dan222 sw pwr sw power hv 19.66 mhz hn58x24128fpi cr...

  • Page 36: Section 11

    Section 11 voltage diagrams voltage line explanatory notes tx line 5v 8v 5v 5v 8v afvi cli (hang) clo gnd mic mice ptt afo cli 8v com4 com3 com2 com1 seg40 seg39 seg38 seg37 seg36 seg35 seg34 seg33 seg32 seg31 seg30 seg29 seg28 seg27 seg26 seg25 seg24 seg23 seg22 seg21 seg20 seg19 seg18 seg17 seg16 ...

  • Page 37

    Voltage line explanatory notes tx line rx line common line main unit (2) j1 to mic to optional unit jack j2 gnd pwr linh lcs lck lso afvi cli gnd mic 8v 5v kr0 kr1 kr2 fsw horn clo ptt afo 8v cl0 afo ptt front unit j2 j1 ptti ptto mcot mcin aux busy mdwn sig opt1 opt2 opt3 gnd opv3 opv2 opv1 gnd 5v ...

  • Page 38

    Voltage line explanatory notes tx line rx line common line r320 3.3k 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 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 ...

  • Page 39

    Asia icom inc. 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...

  • Page 40

    S-13817hz-c1u- w c 2002-2005 icom inc..