1. DL manuals
  2. Icom
  3. Transceiver
  4. IC-F310
  5. Service Manual

Icom IC-F310 Service Manual

Other manuals for IC-F310: Instruction Manual
Manual is about: vhf fm transceiver

Summary of IC-F310

  • Page 1

    Service manual vhf fm transceiver if310 if310s if320 if320s.

  • Page 2

    Introduction this service manual describes the latest service information for the ic-f310, ic-f310s, ic-f320 and ic-f320s vhf fm transceiver at the time of publication. To upgrade quality, any electrical or mechanical parts and internal circuits are subject to change without notice or obligation. Da...

  • Page 3

    Explicit definitions versions lmr (land mobile radio) pmr (personal mobile radio) f320/f320s f310/f310s u.S.A. Version european version frequency coverage l-band h-band 136–155 mhz 146–174 mhz channel spacing wide/narrow-type 25 khz/12.5 khz table of contents section 1 specifications section 2 insid...

  • Page 4: Section 1

    1 - 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 conne...

  • Page 5

    2 - 1 section 2 inside view cpu5v regurator (ic9: s-81250pg-pd) af power amplifier (ic10: la4425a) pll ic (ic2: upd3140gs) high-pass filter (ic8: njm2904v) reference osillater (x1: cr-590) note: *located under side of the point. I/o expander (ic11: bu4094bcfv) vco circuit 1st if filter (fi1: fl-285)...

  • 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

    4 - 1 section 4 circuit description 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 (ic3, pin 9) are amplified at the af amplifier (ic7a) and then pass through the af switching ic (ic4, pins 1, 2) and high-pass filter (ic8) wh...

  • 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 (q4) passes through the t/r switch (d5) and is amplified at the buffer (q3, q2) and drive (q1) amplif...

  • Page 10

    4 - 4 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 description the voltage from a dc power supply. The same voltage as the vcc line which is con- trolled by the power switching circuit (q25, q26). When the [power] swit...

  • Page 11

    4 - 5 4-5-2 i/o expander ic (1) ic5 (main unit) (2) ic11 (main unit) output tunable band pass filter control signals. Output port for tunable band pass filter control sig- nal whiler receiving. Output power control signal while transmitting. Output port for reference frequency control voltage. 2, 3,...

  • 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 data at right using the optional programming software (ex-2057 rev. 1.0 or later for ic-f310/f320, cs-f300s for ic-f310s/f3...

  • Page 13

    5 - 2 memory ch : 1 power(hi) : 142 ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ – – – – – – – – – 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: (ch 1) 155.00000 mhz [l-band] 174.00000 mhz [h-band] • transmitting • receiving • operating frequency: (ch 2) 136.00000 mhz [l-band] 1...

  • Page 15

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

  • Page 16

    Receive [bpf t1]– [bpf t4] squelch level [sql] • operating frequency: (ch 2) 136.00000 mhz [l-band] 146.00000 mhz [h-band] • connect an ssg to the antenna con- nector and set as : level : adjust ssg’s level to 8 db sinad on the con- necting sinad meter modulation: off • receiving convenient: the bpf...

  • Page 17

    5 - 6 dc power supply 13.2 (13.6) v / 15 a ac millivoltmeter speaker 4 Ω sinad meter audio generator • main unit • front unit r60 beep level adjustment j2, pin 25 audio input point 1 15 16 30 25 j2 + –.

  • Page 18: Section 6

    [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 t107 r e q4 1590000660 s.Transistor dtc144tu t107 q5...

  • Page 19

    J1 6450001470 connector 95003-2881 j2 6510020510 s.Connector fh12-40s-0.5sv ds1 5030001540 lcd ld-hu10140j c only ds2 5040002310 s.Led sml-311ytt86 c only ds3 5040002310 s.Led sml-311ytt86 c only ds4 5040002310 s.Led sml-311ytt86 c only ds5 5040002310 s.Led sml-311ytt86 c only ds6 5040002310 s.Led s...

  • Page 20

    [main unit] [main unit] s.=surface mount ic1 1150001930 ic sc-1364 ∏ [l-band] 1150001940 ic sc-1365 ∏ [h-band] 1150001760 ic m68702l Ò [l-band] 1150001750 ic m68702h Ò [h-band] ic2 1130007610 s.Ic µpd3140gs-e1 (ds8) ic3 1110003490 s.Ic ta31136fn (d, el) ic4 1130008090 s.Ic bu4066bcfv-e1 ic5 11900003...

  • Page 21

    [main unit] [main unit] s.=surface mount r17 7030003470 s.Resistor erj3geyj 182 v (1.8 k Ω ) r18 7030003320 s.Resistor erj3geyj 101 v (100 Ω ) r19 7030003340 s.Resistor erj3geyj 151 v (150 Ω ) r20 7030003550 s.Resistor erj3geyj 822 v (8.2 k Ω ) ∏ 7030003580 s.Resistor erj3geyj 153 v (15 k Ω ) Ò r21 ...

  • Page 22

    [main unit] [main unit] s.=surface mount r194 7030003560 s.Resistor erj3geyj 103 v (10 k Ω ) r195 7030003560 s.Resistor erj3geyj 103 v (10 k Ω ) r196 7030003640 s.Resistor erj3geyj 473 v (47 k Ω ) r197 7030001250 s.Resistor mcr50jzhj 1 k Ω (102) r198 7030003640 s.Resistor erj3geyj 473 v (47 k Ω ) r1...

  • Page 23

    [main unit] [main unit] s.=surface mount c71 4030007090 s.Ceramic c1608 ch 1h 470j-t-a c72 4030007090 s.Ceramic c1608 ch 1h 470j-t-a c73 4030006860 s.Ceramic c1608 jb 1h 102k-t-a c74 4030009990 s.Ceramic c1608 ch 1h 200j-t-a [l-band] 4030007000 s.Ceramic c1608 ch 1h 090d-t-a [h-band] c75 4030007000 ...

  • Page 24

    [main unit] [main unit] s.=surface mount c217 4030006900 s.Ceramic c1608 jb 1e 103k-t-a c218 4030006900 s.Ceramic c1608 jb 1e 103k-t-a c219 4030006860 s.Ceramic c1608 jb 1h 102k-t-a c220 4510004510 electrolytic 25 mv 470 hc c221 4030006860 s.Ceramic c1608 jb 1h 102k-t-a c222 4030011340 s.Ceramic c16...

  • Page 25

    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 26

    7 - 2 mp2 (c) mp3 (c) mp2 (f) ds1 (f) ep2 (f) mp1 (f) front unit w3 (f) j1 (f) mp7 (c) mp1 (c) mp7 (c) mp7 (c) mp4 (m) mp1 (m) mp2 (m) mp13 (c) mp13 (c) mp7 (c) mp5 (m) mp6 (c) mp7 (c) mp11 (c) mp12 (c) w7 (m) j5 (m) mp6 (c) main unit (bottom side) mp3 (m) mp7 (c) j1 (c) mp9 (c) sp1 (c) mp8 (c) mp7 ...

  • Page 27

    8 - 1 section 8 semi-conductor information 2sa1588 gr (symbol: zg) 2sb1124 s (symbol: bg) 2sb1143 s (symbol: bg) 2sb1201 s (symbol: b1201) 2sc2714 y (symbol: qy) s d g ¡ transistors and fet's 2sc4081 r (symbol: br) 2sc4215 o (symbol: qo) 2sc4226 r25 (symbol: r25) 2sc4703 (symbol: se) 2sd1664 (symbol...

  • Page 28

    9 - 1 section 9 board layouts 9-1 front unit (ic-f310/f320) ¡ ¡ top view 8v 1 7 2 8 afo mice gnd clone ptt mic hanger to microphone j1.

  • Page 29

    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 j1 j2 8v cpu5v gnd opint opcs busy beepout tone beep dtcsin rfatt nois unlk exen exst dast plst vin temp mic ¡ ¡ bottom view.

  • Page 30

    9 - 3 9-2 front unit (ic-f310s/f320s) ¡ ¡ top view 8v 1 7 2 8 afo mice gnd clone ptt mic hanger to microphone j1.

  • Page 31

    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 j1 j2 8v cpu5v gnd opint opcs busy beepout tone beep dtcsin rfatt nois unlk exen exst dast plst vin temp mic ¡ ¡ bottom view.

  • Page 32

    9 - 5 9-3 main unit (ic-f310/ic-f310s) ¡ ¡ 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 j1 2 40 to front unit 1 39 gnd 5v hv micmute afonop beepo...

  • Page 33

    9 - 6 ¡ ¡ bottom view sp.

  • Page 34

    9 - 7 9-4 main unit (ic-f320/f320s) ¡ ¡ top view ant j1 w1 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 j1 2 40 to front unit 1 39 gnd 5v hv micmute afono...

  • Page 35

    9 - 8 ¡ ¡ bottom view sp.

  • Page 36

    10 - 1 section 10 block diagram 5v 5v 8 7 6 5 4 3 2 1 bal ref t4 t3 t2 t1 af dtcs ic5 sck so plst unlk 5v x1 or x2 nwc r5 l26.L27 2nd lo pll ic ref osc bal ref fm det ic3 nois sd fi3.Fi4 or fi5 nwc ceramic bpf bpf x3 disc ic2 loop fil vco 5v 5v c60.C61 q7.Q8 d7.D8 l14 q10 q5 ripple fil buff buff buf...

  • Page 37

    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 38

    15.3mhz 3.6v 2.2v rx:1.2v rx:0v rx:0.63v rx:4.7v rx:0v 7.7v tx:0v rx:5.0v tx:5.0v rx:0v 13.2v (lcd type only) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ic2 µpd3140gs vcc1 in1 enb clk data t1 lok cp1 fi1 fo1 gnd1 in2 vcc2 xb xi xo gnd2 cp2 fi2 fo2 c68 0.01 r49 exb-v8v (1kx4) c69 0.001 c70 47...

  • Page 39

    Rx:0v rx:0.63v rx:4.7v rx:0v 7.7v tx:0v rx:5.0v tx:5.0v rx:0v 13.2v (lcd type only) 5.0v lmr (only) 13.2v 5.0v r29 68k l12 0.1 µ h q5 sc4215 c43 12p c42 0.001 r27 39k l11 0.1 µ h q4 2sc4215 c41 18p r25 4.7k d6 ma77 d5 ma77 r24 100 c39 10p r21 5.6k r23 4.7k c40 0.001 r28 470 r26 390 r22 100 r20 8.2k ...

  • Page 40

    15.3mhz 3.6v 2.2v rx:1.2v rx:0v rx:0.63v rx:4.7v rx:0v 7.7v tx:0v rx:5.0v tx:5.0v rx:0v 13.2v (lcd type only) 5.0v lmr (only) 13.2v 5.0v 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ic2 pd3140gs vcc1 in1 enb clk data t1 lok cp1 fi1 fo1 gnd1 in2 vcc2 xb xi xo gnd2 cp2 fi2 fo2 c68 0.01 r49 exb-v...

  • Page 41

    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 : 01227 741741 fax : 01227 741742 url : http://www.Icomuk.Co.Uk zac de la plaine, rue brindejonc des...

  • Page 42

    1-1-32, kamiminami, hirano-ku osaka 547-0003, japan a-5560sz-sv -q © 1999 icom inc..