1. DL manuals
  2. Icom
  3. Transceiver
  4. IC-F2610
  5. Service Manual

Icom IC-F2610 Service Manual

Other manuals for IC-F2610: Instruction Manual
Manual is about: UHF FM TRANSCEIVER

Summary of IC-F2610

  • Page 1

    Service manual uhf fm transceiver if2610 ic-f2610-00 99.3.31 11:48 am page 1.

  • Page 2

    Introduction this service manual describes the latest service informa- tion for the ic-f2610 uhf fm transceiver. To upgrade quality, any electrical or mechanical parts and internal circuits are subject to change without notice or obligation. Danger never connect the transceiver to an ac outlet or to...

  • Page 3

    Table of contents section 1 specifications section 2 inside views section 3 option installations section 4 circuit description 4 - 1 receiver circuits............................................................................................................................. 4 - 1 4 - 2 transmitter ...

  • 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 operating temperature range power supply voltage current drain tx max. Power (approx.) rx max. Audio stand-by antenna connector dimensions (proj. Not...

  • Page 5

    Main unit power module* (ic11: sc-1323) af power amplifier (ic8: la4425a) vco circuit pll reference tcxo (x501: cr-573) pll ic* (ic12: mc145190f) d/a converter (ic5: m62363fp) front unit cpu (ic20: hd64f3437f16) eeprom (ic27: x25650s8i-2.5) low-pass filter circuit 1st mixer* (q2: 3sk166) rf amplifie...

  • Page 6

    Section 3 disassembly and option instructions 3 - 1 • opening cover remove 4 screws from bottom cover. • opc-617 connection • installation location install option units. Opc-617 acc cable: j4 ut-96 5-tone unit ut-103 ffsk logic board or ut-105 smartrunk ii tm logic board ex-1761 memory expansion uni...

  • Page 7

    3 - 2 £ attach the ‘rmk-1 rear unit attachment’ to the trans- ceiver main unit using the supplied screws. ¢ remove 4 screws from the attachment to open the front plate. ∞ connect an optional separation cable opc-609 (1.9 m) to the inside of the front plate and tighten the cable lug using the screw. ...

  • Page 8: Section 4

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

  • Page 9

    4 - 2 4-1-5 af amplifier circuit the af amplifier circuit amplifies the demodulated af sig- nals to drive a speaker. The af signals from the fm if ic (ic1, pin 9) are amplified at the af amplifier (ic2), and are then applied to the high- path filter circuit (ic3a/b). The high-pass filter characteris...

  • Page 10

    4 - 3 4-2-2 modulation circuit the modulation circuit modulates the vco oscillating signal (rf signal) using the microphone af signals. The af signals from the level controller (ic5) change the reactance of varactor diode (d46) to modulate the oscillated signal at the tx vco circuit (q23). The modul...

  • Page 11

    4 - 4 the lock voltage is also used for the receiver tunable band- pass filters to match the filter’s center frequency to the desired receive frequency. The lock voltage is amplified at the buffer amplifier (q29) and is then applied to the band- pass filters (d7–d11, d514). 4-3-2 vco circuit the vco...

  • Page 12

    4 - 5 4-5 port allocations cpu (ic20) 20 21 22 24 25 30 31 32 38 40 43 44 47, 48 49 50 51 53 55 56 25 57 60 62 ptto ptti afon busy posw mmut rmut nois afv rssi cdec cenc ecs2, ecs1 eck esi eso beep mcon amut nwc hfsw pa tmut outputs the ptt control signal. Low : while transmitting input port for the...

  • Page 13

    5 - 1 section 5 adjustment procedures 5-1 preparation ■ required test equipment equipment dc power supply rf power meter (terminated type) frequency counter rf voltmeter fm deviation meter audio generator grade and range output voltage : 13.2 v dc current capacity : 15 a or more measuring range : 1–...

  • Page 14

    P 0 p 0 5-2 initial set mode the following items can be adjusted via initial set mode without opening the transceiver’s case. ■ entering initial set mode 1 turn the transceiver power off. 2 while pushing and , turn power on. • bank number appears regardless of the channel sepa- ration type, ‘bank’ o...

  • Page 15

    5 - 3 5-3 pll adjustment pll lock voltage pll reference frequency 1 2 3 4 1 • operating frequency : 440.000 mhz • receiving • operating frequency : 490.000 mhz • receiving • operating frequency : 440.000 mhz • transmitting • operating frequency : 490.000 mhz • transmitting • operating frequency : 44...

  • Page 16

    P 2 adjust in sequence l8, l9, l11, l12, l13 on the main unit. Rotate volume control while pushing . Verify push to select the beep level. P 3 5 - 4 dc power supply 13.2 v/15 a l8 l9 l11 l12 l13 sensitivity adjustment maximum indi- cation at the point where the noise audio just disap- pears. Squelch...

  • Page 17

    P 2 5 - 5 output power fm deviation dtcs wave form and deviation ctcss tone deviation 25 w 10 w 2.5 w ±4.0 khz ±1.75–±2.2 khz ±0.7 khz ±0.25–±0.5 khz ±0.7 khz ±0.25–±0.5 khz connect an rf power meter to the antenna connector. Connect an fm deviation meter to the antenna connec- tor through an attenu...

  • Page 18: Section 6

    [front unit] [front unit] ic1 1130009120 s.Ic sed1526f0a ic2 1140007631 s.Ic hd6433640a33h ic3 1110003500 s.Ic s-80742sl-a6-t1 ic4 1130005720 s.Ic tc7w04f (te12l) ic5 1110003390 s.Ic an8005m-(e1) q1 1530002060 s.Transistor 2sc4081 t107 r q2 1590001330 s.Transistor dta114eua t106 q3 1590000680 s.Tran...

  • Page 19

    Q31 1590002300 s.Transistor fmw2 t148 q32 1530002060 s.Transistor 2sc4081 t107 r q33 1510000510 s.Transistor 2sa1576a t106r q35 1530002060 s.Transistor 2sc4081 t107 r q36 1540000550 s.Transistor 2sd1664 t100q q37 1530002850 s.Transistor 2sc4116-bl (te85r) q38 1540000550 s.Transistor 2sd1664 t100q q3...

  • Page 20

    [main unit] [main unit] s.=surface mount d506 1160000060 s.Diode dan202u t107 d507 1720000360 s.Diode hsu88trf d508 1750000130 s.Diode da204u t107 d509 1160000060 s.Diode dan202u t107 d510 1750000130 s.Diode da204u t107 d511 1750000300 s.Diode 1ss302 (te85r) d512 1790000620 s.Diode ma77 (tx) d513 17...

  • Page 21

    [main unit] [main unit] s.=surface mount r109 7030003480 s.Resistor erj3geyj 222 v (2.2 k Ω ) r110 7030003340 s.Resistor erj3geyj 151 v (150 Ω ) r111 7030000190 s.Resistor mcr10ezhj 27 Ω (270) r113 7030004040 s.Resistor erj3geyj 4r7 v (4.7 Ω ) r114 7030003240 s.Resistor erj3geyj 220 v (22 Ω ) r115 7...

  • Page 22

    [main unit] [main unit] s.=surface mount r337 7030003360 s.Resistor erj3geyj 221 v (220 Ω ) r338 7030003650 s.Resistor erj3geyj 563 v (56 k Ω ) r339 7030003610 s.Resistor erj3geyj 273 v (27 k Ω ) r341 7030003560 s.Resistor erj3geyj 103 v (10 k Ω ) r342 7030003660 s.Resistor erj3geyj 683 v (68 k Ω ) ...

  • Page 23

    [main unit] [main unit] s.=surface mount c2 4030011050 s.Ceramic grm42-6 cj 030c 500pt c3 4030011050 s.Ceramic grm42-6 cj 030c 500pt c4 4030006860 s.Ceramic c1608 jb 1h 102k-t-a c5 4030006860 s.Ceramic c1608 jb 1h 102k-t-a c6 4030006860 s.Ceramic c1608 jb 1h 102k-t-a c7 4030006860 s.Ceramic c1608 jb...

  • Page 24

    S.=surface mount c200 4550002890 s.Tantalum tesva 1a 225m1-8l c201 4030011600 s.Ceramic c1608 jb 1c 104kt-n c202 4030006870 s.Ceramic c1608 jb 1h 222k-t-a c203 4030011600 s.Ceramic c1608 jb 1c 104kt-n c204 4550003220 s.Tantalum temsva 1e 105m-8l c205 4030004760 s.Ceramic c2012 jf 1e 104z-t-a c206 45...

  • Page 25

    S.=surface mount c403 4030006850 s.Ceramic c1608 jb 1h 471k-t-a c404 4030006860 s.Ceramic c1608 jb 1h 102k-t-a c405 4030007090 s.Ceramic c1608 ch 1h 470j-t-a c406 4030006850 s.Ceramic c1608 jb 1h 471k-t-a c407 4030006850 s.Ceramic c1608 jb 1h 471k-t-a c408 4030007090 s.Ceramic c1608 ch 1h 470j-t-a c...

  • Page 26

    Ref. No. Ref. No. J2 6450000140 connector hsj0807-01-010 1 j5 6510018040 connector 52330-1217 1 w4 8900004540 cable opc-453 1 ep2 6910010220 bead hf70 bb 3.5 x 5 x 1.3 3 ep3 6910010280 bead hf70 bb 9.5 x 10.4 x 4.9 2 mp1 8510006810 dc-dc case 1 mp2 8510009980 1705 vco case 1 mp4 8510010080 1705 vco ...

  • Page 27

    7 - 2 j1 (c) mp4 (c) mp9 (f) mp10 mp11 mp4 (f) r26 (f) j1 (f) mp3 (f) ep2 (f) ds1 (f) mp2 (f) mp16 (c) mp11 (c) mp11 (m) mp7 (m) mp10 (m) mp6 (c) mp3 (c) j2 (m) mp15 (c) mp13 (m) ep2 (m) mp2 (m) + mp4 (m) main (top side) mp6 (m) j5 (m) mp2 (c) mp9 (m) mp12 (m) mp2 (c) ep3 (m) mp8 (m) w4 (m) mp8 (c) ...

  • Page 28

    8 - 1 1ss302 (symbol: c3) da204u t107 (symbol: k) dan202u t107 (symbol: n) ma77 (symbol: 4b) ma742 (symbol: m1u) um9401f (no symbol) ma8160 (symbol: 16^) hsu88trf (symbol: 9) 1ss352 (symbol: c1) da221 tl (symbol: k) ma111 (symbol: 1b) hvu350trf (symbol: 4) 1ss355 (symbol: a) 1sv217 (symbol: t6) 1t36...

  • Page 29

    J1 gnd afo mice +8v clon 2 8 1 7 ptt mic hang to microphone 9 - 1 section 9 board layouts 9-1 front unit ¡ ¡ top view.

  • Page 30

    9 - 2 32 17 16 38 1 39 64 65 102 103 128 1 1 4 5 8 64 49 33 48 j2 ftxd frxd posw +8v mice mic vcc 1 12 sql sp spe gnd to main unit j5 afo ¡ ¡ bottom view.

  • Page 31

    0 - 5 100 1 25 26 50 51 75 76 5 8 1 4 5 8 1 4 5 1 j501 +5v res gnd vcc fvpx cts 10 9 rt s txd rxd gnd 1 2 to optional cable opc-821, opc-822 5 8 1 1 1 1 1 8 8 8 5 5 5 4 4 4 4 12 13 24 ptt in ptt out mic out mic in aux busy nc sig out opt1 opt2 opt3 gnd opv3 opv2 opv1 gnd l5v vcc mmut afon beep out r...

  • Page 32

    16 1 8 9 1 4 1 4 5 8 5 6 10 1 8 5 1 10 11 4 5 8 1 20 1 11 1 1 4 8 5 16 8 9 20 10 1 8 5 4 mp12 mp13 mp13 mp11 mp7 mp10 c589 c588 c591 c592 c590 9 - 4 ¡ ¡ bottom view.

  • Page 33

    Vcc afo sp af sw ic8 la4425a q7 dtc363ek ext sp +8v +5v shift sw hfsw amut vca vca ic7 m5282fp q6 dtc114eu q515 dta144eu ic3 ta75w558fu q5 2sc4116 n/w ctrl disc af out nwc q501,q502,q510 dtc144eu r8v mcf +8v n/w sw n/w sw n/w sw fi4 sfpc455e fi3 sfpc455h q61 2sc4116 x2 cdbc455cx16 ic2a ta75s588f fm ...

  • Page 34

    11 - 1 +0 microphone ds1 +8v q6 dta143zu q8 dta143zu q9 dta143zu q7 dta143zu r29 270 r34 220 c34 47p c35 47p c36 47p c37 47p s14 s15 s16 s17 r40 100k r41 100k r42 100k r43 100k +5v c38 47p c41 47p c42 47p c45 47p c46 47p s5 s6 s9 s10 s13 r39 100k ky3 ky6 ky5 ky2 ky1 ky4 kyp4 kyp3 kyp2 kyp1 kyp0 5 4 ...

  • Page 35

    Tune c279 47p j2 [ext sp] c281 10 w11 w12 w13 w14 w15 w16 w17 w18 w19 w21 w22 w23 w24 w25 w26 w27 w28 w29 c 0. Ep3 t8v +5v pset +18v l30 0.56 c339 1 mt8v c136 470p r371 4.7k q55 2sc4081 r31 4.7k l18 3.3 c294 0.001 d18 ma77 c47 9p c43 0.001 c267 10 c270 470p r27 3.3k l21 1 f r616 680 r366 100 c45 0.0...

  • Page 36

    6 5 7 +5 af bus opt af bus +5 afo pamic spe sp beep paaf vcc2 1 in+ 2 in- 3 out 4 vcain 7 ctl 8 vcaout 9 vcc 10 gnd 5 nc 6 ic7 m5282fp r320 100k r338 56k c83 0.1 c92 0.1 c95 0.1 r94 10k c93 220 c94 470 1 2 3 4 5 ic8 vcc la4425a r330 10k c369 0.001 r86 10k d50 1ss355 q7 dtc363ek c91 0.0047 c333 2.2 c...

  • Page 37

    Tune c279 47p 6 5 7 +5 af bus opt af bus +5 j2 [ext sp] afo pamic spe sp beep paaf vcc2 1 in+ 2 in- 3 out 4 vcain 7 ctl 8 vcaout 9 vcc 10 gnd 5 nc 6 ic7 m5282fp r320 100k r338 56k c83 0.1 c92 0.1 c95 0.1 r94 10k c93 220 c94 470 1 2 3 4 5 ic8 vcc la4425a r330 10k c369 0.001 r86 10k d50 1ss355 q7 dtc3...

  • Page 38

    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 39

    6-9-16, kamihigashi, hirano-ku osaka 547-0002, japan a-5547hi-su c c 1999 icom inc. Ic-f2610-ó†ï\éÜ 99.3.31 2:16 pm page 2.