1. DL manuals
  2. Icom
  3. Transceiver
  4. IC-F80DS
  5. Service Manual

Icom IC-F80DS Service Manual

Summary of IC-F80DS

  • Page 1

    Service manual uhf transceivers.

  • Page 2

    Icom, icom inc. And logo are registered trademarks of icom incorporated (japan) in the united states, the united kingdom, germany, france, spain, russia and/or other countries. Introduction this service manual describes the latest service information for the ic-f80dt/ds and ic-f80t/s uhf transceiver...

  • Page 3

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

  • Page 4: Section 1

    1 - 1 section 1 specifications m general • frequency coverage : 400–470 mhz 450–520 mhz • type of emission : 11k0f3e/8k10f1e (narrow) 16k0f3e (wide) • number of conventional channels : 256 channels (max.) • antenna impedance : 50 Ω (nominal) • operating temperature range : −22°f to 140°f • power sup...

  • Page 5: Section 2

    Section 2 inside views • front unit • main unit 2 - 1 af muting (ic205: tc4s66f) af amplifier (ic201: ta7368f) expander (ic1, ic2: m62320fp) 3.0v regulator (ic101: s-812c30amc-c2k) mic switch (ic204: tc4s66f) mic amplifier (ic203: njm12902v) af mute q209, q210: rsr025n03 af mute switch (ic205: tc4s6...

  • Page 6: Section 3

    Section 3 disassembly instructions • removing the chassis unit 1 unscrew the ant nut a and remove the ant washer b. 2 unscrew the screw c, and remove the rear panel d in the direction of the arrow. 3 unscrew 4 screws e and 2 screws f. • removing the main unit 1 disconnect the cable h from j3. 2 remo...

  • Page 7

    4 - 1 section 4 circuit description 4-1 receiver circuits 4-1-1 antenna switching circuit (main unit) the antenna switching circuit toggles the receive line and the transmit line. This circuit does not allow transmit signals to enter the receiver circuits. Received signals from the antenna connector...

  • Page 8

    4 - 2 the demodulated af signals are output from pin 9, and applied to the af cricuits. 4-1-5 af circuits (main and front units) the demodulated af signals from the fm if ic are ampli- fied and filtered at af circuit. This transceiver employs the base band ic for audio signal processing for both tra...

  • Page 9

    4 - 3 4-2 transmitter circuits 4-2-1 microphone amplifier circuit (front and main units) the microphone amplifier circuit amplifies the audio signals from microphone within +6 db/oct pre-emphasis characteris- tic. The microphone signals are processed in the base band ic which contains microphone amp...

  • Page 10

    4-3 pll circuits 4-3-1 pll circuit (main unit) the pll circuit provides stable oscillation of the transmit frequency and receive 1st lo frequency. The pll circuit compares the phase of the divided vco frequency with the reference frequency. The pll output frequency is controlled by the divided ratio...

  • Page 11

    4 - 5 bpf from fm if ic (ic3, pin 11) to af volume from mic amplifier (ic203; front unit) to fm/pm sw (ic302, pin 5) • digital mode block diagram dsp unit amp amp q303 ic302 received signal fi1 ic5 ic8 ic7 ic9 ic9 ic4 ic302 ic301 a/d liner codec ic liner codec ic base band ic dig/ana sw dsp ic mic s...

  • Page 12

    4 - 6 pin number port name description 38 pwrsw input port for the [vol] control (vr unit; r1). Low: while power is on. 39 ddst input port for the decodeddtmf sig- nals from the dtmf decoder ic (ic300, pin 11). 40 cirq inputs offering signal from the optional unit and dsp unit. Low: offering signal ...

  • Page 13

    ▄ required test equipments equipment grade and range equipment grade and range dc power supply output voltage current capacity : 7.2 v dc : 3 a or more audio generator frequency range measuring range : 300–3000 hz : 1–500 mv fm deviation meter frequency range measuring range : dc–600 mhz : 0 to ±10 ...

  • Page 14

    3).!$ !Udio 3peaker /0# *)' 23 # &- deviation /sciiloscope to !Ttenuator 2& n &requency counter 3tandard n #!54)/. $/ the the # , * * &2/.4 &53% -!). $30 $# 0# 5 - 2 • connection !Dd %lectrolytic /0# #loning !Udio !# millivoltmeter 044 044% -)# -)#% 30n 30 n • jig cable.

  • Page 15

    5 - 3 • pc screen example r t y e u q w i !0 !2 @5 @6 @7 !5 !6 !7 o !8 !9 @1 @0 @2 @3 @4 !1 !3 !4 q: reload adjustment data w: transceiver's connection state e: connected dc voltage measurement r: pll lock voltage measurement t: rf output power y: fm modulation balance u: fm modulation preset i: ctc...

  • Page 16

    5 - 4 5-2 soft ware adjustment select an operation using [ ↑] / [↓] keys, then set specifi ed value using [←] / [→] keys on the connected computer keyboard adjustment adjustment condition measurement value unit operation pll lock voltage 1 • operating ch. • receiving : ch 1 pc screen click [reload (...

  • Page 17

    5 - 5 software adjustment (continued) select an operation using [ ↑] / [↓] keys, then set specifi ed value using [←] / [→] keys on the connected computer keyboard adjustment adjustment condition measurement value unit operation output power [power (hi)] 1 • operating ch. • transmitting : ch 6 top pa...

  • Page 18

    5 - 6 software adjustment (continued) select an operation using [ ↑] / [↓] keys, then set specifi ed value using [←] / [→] keys on the connected computer keyboard adjustment adjustment condition measurement value unit operation digital deviation* [mod dig c] 1 • preset [dig mode] : 7 top panel conne...

  • Page 19

    5 - 7 software adjustment (continued) • select an operation using [ ↑] / [↓]keys, then set specifi ed value using [←] / [→] keys on the connected computer keyboard adjustment adjustment condition measurement value unit location rx sensitivity [bpf t1], [bpf t2] note: need to adjust "s-meter adjustme...

  • Page 20: Section 6

    6 - 1 section 6 parts list m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) ref order description m. H/v no. No. Location [front unit] ic1 1110006440 s.Ic m62320fp df5j b 20.7/73.6 ic2 1110006440 s.Ic m62320fp df5j b 20.7/62.5 ic101 1180002400 s.Reg s-812c30amc-c2k-t2 b 9....

  • Page 21

    6 - 2 m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) ref order description m. H/v no. No. Location [front unit] s.=surface mount ref order description m. H/v no. No. Location [main unit] c110 4030016930 s.Cer ecj0eb1a104k b 7.5/93.6 c111 4550006450 s.Tan ecst1ey105r b 12...

  • Page 22

    6 - 3 m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) ref order description m. H/v no. No. Location [main unit] s.=surface mount ref order description m. H/v no. No. Location [main unit] fi1 2020001930 s.Cer cfwca450kffa-r0 t 57.1/23.5 fi2 2020002120 s.Cer cfwca450kgfa-r0...

  • Page 23

    6 - 4 m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) ref order description m. H/v no. No. Location [main unit] s.=surface mount ref order description m. H/v no. No. Location [main unit] r336 7030005090 s.Res erj2gej 104 x (100 k Ω) t 57.2/17.4 r337 7030010040 s.Res erj2g...

  • Page 24

    6 - 5 m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) ref order description m. H/v no. No. Location [main unit] s.=surface mount ref order description m. H/v no. No. Location [main unit] r625 7030005040 s.Res erj2gej 472 x (4.7 k Ω) b 85.8/24.9 r628 7030010040 s.Res erj2g...

  • Page 25

    6 - 6 m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) ref order description m. H/v no. No. Location [main unit] s.=surface mount ref order description m. H/v no. No. Location [main unit] c346 4030016930 s.Cer ecj0eb1a104k t 74.2/30.4 c347 4030017710 s.Cer ecj0ec1h181j t 5...

  • Page 26

    6 - 7 m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) ref order description m. H/v no. No. Location [main unit] s.=surface mount ref order description m. H/v no. No. Location c607 4030017590 s.Cer ecj0ec1h070c [h] t 88.9/17.8 4030017630 s.Cer ecj0ec1h120j [l] t 88.9/17.8 ...

  • Page 27

    6 - 8 m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) ref order description m. H/v no. No. Location [dsp unit] (ic-f80dt/ds only) s.=surface mount ref order description m. H/v no. No. Location [dsp unit] (ic-f80dt/ds only) ref order description m. H/v no. No. Location [fu...

  • Page 28: Section 7

    7 - 1 section 7 mechanicalparts and disassembly [main unit] mp3 8510016870 2803 vco cover 1 mp5 8510017130 2804 pa shield 1 mp6 8930066240 sponge (im) 1 ref order description qty. No. No. [chassis parts] [accesories] screw abbreviations b0, bt: self-tapping ph: pan head ni-zu: nickel-zinc zk: black ...

  • Page 29

    7 - 2 mp1 (c) mp1 (c) mp26 (c) mp43 (c) mp8 (c) mp1 (v) s1 (v) r1 (v) ep1 (v) ds1 (v) j1 (f) mp1 (a) mp6 (m) mp20 (c) s3 (m) mp2 (m) w2 (c) mp6 (f) mp57 (c) mp57 (c) mp57 (c) mp52 (c) ant board fuse board mp22 (c) mp34 (c) mp35 (c) mp49 (c) mp49 (c) mp47 (c) j1 (c) mp55 (c) mp25 (c) mp29 (c) mp2 (c)...

  • Page 30

    Section 8 semiconductor information • transistors and fet's • diodes b e c b e c b e c b e c b e c b e c b e c b e c b e c b e c b e c b e c b e c b c e b c e g s d s d g d s g2 g1 b e c g s d s s d g g s d g d s d d g d d s e1 b1 b2 c1 c2 e1 b1 b2 c1 c2 e1 e2 b2 c1 b1 c2 2sa1577 t106 q 2sb1132 t100...

  • Page 31

    Section 9 board layouts 9 - 1 h5 h10 h15 h20 h25 h30 h35 h40 h45 h0 v5 v10 v15 v0 v25 v30 v35 v20 v45 v50 v55 v40 v65 v70 v75 v60 v80 v90 v95 v100 v85 v105 v110 v115 v125 v130 v120 7 4 1 p0 p1 p2 p3 0 8 5 2 # 9 6 3 mp6 mp4 mp4 mp1 ds2 mp3 9-1 front unit • top view.

  • Page 32

    H5 h10 h15 h20 h25 h30 h35 h40 h45 h0 v5 v10 v15 v0 v25 v30 v35 v20 v45 v50 v55 v40 v65 v70 v75 v60 v80 v90 v95 v100 v85 v105 v110 v115 v125 v130 v120 mc1 microphone gnd i_mic emergency speaker (chassis sp1) w2 2 1 vdd1 1 8 to lcd (ds2) j101 vdd2.3 res sda scl vss vss v_lcd tp 1 20 j2 r8 r4 r2 r1 gn...

  • Page 33

    D r a o b t n a 4 - 9 ) d n a b w o l ( w e i v p o t • h 5 h10 h0 v5 v10 v15 v0 d n g to main unit t n a d n g ant gnd ) s i s s a h c ( 1 j 0 1 h 5 h 0 2 h 5 1 h 0 3 h 5 2 h 0 4 h 5 3 h 0 5 h 5 4 h 0 6 h 5 5 h 0 7 h 5 6 h 0 8 h 5 7 h 0 9 h 5 8 h 0 0 1 h 5 9 h 0 1 1 h 5 0 1 h 0 2 1 h 5 1 1 h 5 2 1 ...

  • Page 34

    H5 h10 h15 h20 h25 h30 h35 h40 h45 h50 h55 h60 h65 h70 h75 h80 h85 h90 h95 h100 h105 h110 h115 h120 h125 h0 v5 v10 v15 v0 v25 v30 v35 v20 v45 v40 3 1 5 6 1 8 16 9 1 8 16 9 1 12 24 13 16 9 1 8 75 51 50 100 1 26 76 25 1 7 14 8 1 4 8 5 1 3 6 4 1 12 24 13 9 - 4 • bottom view (main unit) • bottom view (f...

  • Page 35

    9-5 dsp unit (ic-f80dt/ds only) • top view 9-6 vr board • bottom view (dsp unit) h5 h10 h15 h20 h25 h30 h35 h40 h45 h50 h55 h60 h65 h70 h75 h0 v5 v10 v15 v0 v25 v30 v35 v20 v45 v50 v55 v40 test to front unit j2 sw1_b sw2_b sw2_a s1 r1 sw3_a gnd led gnd gnd po wer _sw 5v afvi xrxd reset mice afo dete...

  • Page 36

    Voltage line explanatory notes tx line rx line common line data line front unit lcd latch ic2 m62320fp rx sw af mute q202 2sb1132 ds2 m4-0078tay-2 vcc sp1 mc201 ic204 tc4s66f ic203 njm12902v ic203 njm12902v em-140 s113 ptt p1 mic xtxd xrxd reset det vcc sp 9pin encorder vol sql cb10-13 af amp mic am...

  • Page 37

    Section 11 voltage diagrams 11-1 front unit 11 - 1 voltage line explanatory notes tx line rx line +5v +5v vcc +5v afo 0.001 c239 w2 i_mic +a5v +5v 5 4 3 2 1 +5v +a5v e_mic 2.2k r224 +a5v +a5v +5v e_mic +5v vcc +a5v afo vcc +5v 680p c19 vcc +5v mcon +5v +5v vcc +5v +5v vr board 0.01 c2 led led r115 1...

  • Page 38

    Voltage line explanatory notes tx line rx line resister of tester: 50k Ω/v tx 400.100 mhz measurement frequency: rx 400.050 mhz supply voltage:dc 7.2v measurement conditions 9p[l]/7p[h] c610 v5v 100k r615 100p c629 47k r614 2sc5107 q605 c2012c-r39g l612 c2012c-r39g l613 47p c32 erj2ge-jpw r628 14n l...

  • Page 39

    Voltage line explanatory notes tx line rx line common line 22p[l]/10p[h] c552 0.001 c547 7p c556 6p c551 2sc3357 q201 da221 d500 11n[h] 15n[l] l1 2p[h] 7p[l] c1 c650 0.001 c651 0.001 c657 0.001 c669 470p c663 470p c662 470p c654 0.001 c653 0.001 c648 0.001 c647 0.001 c671 0.001 c668 470p mcon c659 0...

  • Page 40

    Voltage line explanatory notes tx line rx line 5.0v 5.0v dvdd 3.3v md2 dvdd 3.3v 47k r61 cpu_res temp resetb flash_rxd flash_txd dvdd 3.3v rssi temp resetb temp flash_txd flash_rxd temp flash_txd flash_rxd md2 c91 470p c4 47p 47p c25 0.001 c56 47p c9 resetb temp flash_txd cpu_res flash_rxd md2 r47 1...

  • Page 41

    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) ...

  • Page 42

    1-1-32, kamiminami, hirano-ku, osaka 547-0003, japan s-14126hz-c1 printed in japan © 2005 icom inc..