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Icom IC-92AD Service Manual

Other manuals for IC-92AD: Instruction Manual, Instruction Manual

Summary of IC-92AD

  • Page 1

    S-14416xz-c1 jan. 2008 vhf/uhf digital transceiver.

  • Page 2

    This service manual describes the latest service information for the ic-e92d vhf/uhf digital transceiver at the time of publication. Never connect the transceiver to an ac outlet or to a dc power supply that uses more than specifed. This will ruin the transceiver. Do not reverse the polarities of th...

  • Page 3

    Contents section 1 specifications section 2 inside views section 3 disassembly instruction section 4 circuit descripiton 4-1 receiver circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 4-2 transmitter circuits . . . . . . . . ....

  • Page 4: Section 1

    1 - 1 section 1 specifications ‡ selectable depending on the operating frequency band. P general • frequency coverage : (unit: mhz) version a band b band eur tx: 144–146, 430–440 rx: 0.495–999.990* 1, * 2 tx: 144–146, 430–440 rx: 118–174* 2 , 350–470* 1 * 1 guaranteed 430–440 mhz only, * 2 guarantee...

  • Page 5: Section 2

    2 - 1 section 2 inside views analog switch (ic50: cd4066) • logic unit rs-232 driver (ic52: max3221) eeprom (ic51: 24lc512) cpu3v regulator (ic100: r1150h022) af switch (ic301: tc7w53) modem (ic501: cmx589) af filter/idc (ic302: lmv324) af buffer (ic504: njm2115) liner codec (ic503: ad73311) dc-dc c...

  • Page 6

    2 - 2 tone filter (ic150: lm2904) if ic (a band) (ic100: ta31136fng) if ic (a band) (ic200: ta31136fng) (top view) • rf unit (b-band) discriminator (x100: jtbm450) rx vcos (b band) (top view) • main unit (bottom view) (bottom view) 2nd if filter (a band) (fi100: ltwc450e1) (b band) discriminator (x2...

  • Page 7: Section 3

    3 - 1 section 3 disassembly instruction 1. Removing the front panel q unscrew 6 screws from the chassis. W disconnect the flat cable between main unit and front assembly, and remove the front assembly from the chassis. 3. Removing outer parts q remove the dial knobs. W remove the rubber cap, and uns...

  • Page 8

    3 - 2 4. Removing main unit q unscrew 3 screws from the main unit. W unsolder 6 points at the control dial, and remove the main unit. Main unit unsolder 6 points control dial unsolder 4 points rf unit unsolder 1 point 5. Removing rf unit q unsolder 4 points at the contact pins. W unsolder 1 point at...

  • Page 9: Section 4

    4 - 1 section 4 circuit description • 118–173.995 mhz the rx signals are passed through two lpfs, ant sw, att and band sw, then applied to the rf amp (q400). The amplified rx signals are passed through the tuned bpf, and applied to another rf amp (q401). The amplified rx signals are passed through t...

  • Page 10

    4 - 2 • 600–999.990 mhz the rx signals are passed through the hpf, band sw, att and tuned bpf in sequence, then applied to the rf amp (q700). The amplified rx signals are passed through the bpf, and applied to another rf amp (q701). The amplified rx signals are applied to the 1st mixer (ic900) via t...

  • Page 11

    4 - 3 2nd if and demodulator circuits (main unit) the 1st if signal from the 1st if amp (q100) is applied to the if ic (ic100). The applied 1st if signal is mixed with the 61.2 mhz 2nd lo signal (generated by x450, buffered by q450) at the internal 2nd mixer, to be converted into the 2nd if signal. ...

  • Page 12

    4 -4 rx af circuits (logic unit) the af signals from the fm/am demodulator circuits are passed through the mode sw (m: ic500d) and one of the af filters (ic502 and q501, or, q502 only) whose audio frequency response is set as stable for each rx mode (fm/ am or wfm). Fm/am-demodulated af signals are ...

  • Page 13

    4 - 5 • tx af circuits 4-2 transmit circuits tx af circuits (logic unit) • fm mode mic signals from the internal/external microphone (mic signals) are passed through the mic gain sw (q303), and applied to the mic amp (q302, 304). The amplified mic signals are passed through the mode sw (ic301) which...

  • Page 14

    4 - 6 • frequency synthesizer circuits (a band) 4-3 frequency synthesizer circuits vcos this transceiver has total of five vcos; one rx vco and rx/tx vcos on the vco unit, and two rx vcos on the main unit. • bc band vco (vco unit; q1, d1, 3, 5, 6) the bc band vco generates the 1st lo for bc band (0....

  • Page 15

    4 - 7 line name description in/out status condition power [power] key input. (pull-up). In l – pkey [pwr] key input (pull-up). In l the key is pushed dick [dial] input(phase a). In – – diud [dial] input(phase b). In – – ptt [ptt] key input (pull-down). In h the key is pushed sql [sql] key input (pul...

  • Page 16

    4 - 8 4-5 voltage block diagrams voltage from the attached battery pack is routed to the whole of the transceiver via regulators and switches. Line name description in/out status condition dastb1 strobe signal to the dac (r: ic950). Out – – dastb2 strobe signal to the dac (m: ic600). Out – – iostb1 ...

  • Page 17: Section 5

    5 - 1 section 5 adjustment procedure 5-1 preparation ¤ required instruments instruments specification instruments specification dc cable opc-254l (optional product) jig cable (see the illust below) power supply output voltages : 5.0–13.5 v dc current capacity : more than 3 a multimeter input impedan...

  • Page 18

    5 - 2 m entering adjustment mode q turn the power off. W connect the jig cable to the [data/sp/mic] jack. E while pushing [sql] and [8] keys, turn the power on. M key assignments for the adjustment mode m quitting adjustment mode q turn the power off. W while pushing [vfo], [mr] and [band] keys, tur...

  • Page 19: 5.0 V

    5 - 3 5-2 transmit amplifier adjustment select an adjustment item using [2] / [8] keys, then set the adjustment value as specifi ed using [dial]. Adjustment adjustment condition operation adjustment item value idling current (@5.0 v) [preparation] 0 • supply voltage : 5.0 v 1) connect an rf power me...

  • Page 20: 7.4 V

    5 - 4 5-2 transmit amplifier adjustment (continued) select an adjustment item using [2] / [8] keys, then set the adjustment value as specifi ed using [dial]. Adjustment adjustment condition operation adjustment item value idling current (@7.4 v) [preparation] 0 • supply voltage : 7.4 v 1) connect an...

  • Page 21: 7.4 V

    5 - 5 5-2 transmit amplifier adjustment (continued) select an adjustment item using [2] / [8] keys, then set the adjustment value as specifi ed using [dial]. Adjustment adjustment condition operation adjustment item value transmit power (@7.4 v) [preparation] 0 • supply voltage : 7.4 v 1) connect an...

  • Page 22: 7.4 V

    5 - 6 5-2 transmit amplifier adjustment (continued) select an adjustment item using [2] / [8] keys, then set the adjustment value as specifi ed using [dial]. Adjustment adjustment condition operation adjustment item value transmit power (@7.4 v) [preoaration] 0 • supply voltage : 7.4 v 1) connect an...

  • Page 23: 13.5 V

    5 - 7 5-2 transmit amplifier adjustment (continued) select an adjustment item using [2] / [8] keys, then set the adjustment value as specifi ed using [dial]. Adjustment adjustment condition operation adjustment item value idling current (@13.5 v) [preoaration] 0 • supply voltage : 13.5 v (supplying ...

  • Page 24: 13.5 V

    5 - 8 5-2 transmit amplifier adjustment (continued) select an adjustment item using [2] / [8] keys, then set the adjustment value as specifi ed using [dial]. Adjustment adjustment condition operation adjustment item value transmit power (@13.5 v) [preoaration] 0 • supply voltage : 13.5 v (supplying ...

  • Page 25: 13.5 V

    5 - 9 5-2 transmit amplifier adjustment (continued) select an adjustment item using [2] / [8] keys, then set the adjustment value as specifi ed using [dial]. Adjustment adjustment condition operation adjustment item value transmit power (@13.5 v) [preparation] 0 • supply voltage : 13.5 v (supplying ...

  • Page 26: 7.4 V

    5 - 10 5-3 frequency adjustment select an adjustment item using [2] / [8] keys, then set the adjustment value as specifi ed using [dial]. Adjustment adjustment condition operation adjustment item value reference frequency 1 • displayed freq. : "" • transmitting 1) c o n n e c t a n r f t o t h e ant...

  • Page 27: 7.4 V

    5-4 deviation adjustments select an adjustment item using [2] / [8] keys, then set the adjustment value as specifi ed using [dial]. Adjustment adjustment condition operation adjustment item value fm deviation [preparation] 0 • supply voltage : 7.4 v 1) c o n n e c t a m o d u l a t i o n a n a l y z...

  • Page 28: 7.4 V

    5-4 deviation adjustments (continued) select an adjustment item using [2] / [8] keys, then set the adjustment value as specifi ed using [dial]. Adjustment adjustment condition operation adjustment item value digital voice deviation [preparation] 0 • supply voltage : 7.4 v • connect a modulation anal...

  • Page 29: 7.4 V

    5 - 13 5-4 deviation adjustments (continued) select an adjustment item using [2] / [8] keys, then set the adjustment value as specifi ed using [dial]. Adjustment adjustment condition operation adjustment item value dtmf, european tone, ctcss, dtcs deviation [preparation] 0 • supply voltage : 7.4 v •...

  • Page 30: 7.4 V

    5 - 14 5-5 receive adjustments p whole procedure of receive adjustments 1) select an adjustment item using [2] / [8] keys. 2) set the ssg as specifi ed (frequency, deviation and output level). 3) push the [band] key to adjust (automatic) and store the adjustment value. Adjustment adjustment conditio...

  • Page 31

    5 - 15 receive adjustment (continued) 1) select an adjustment item using [2] / [8] keys. 2) set the ssg as specifi ed (frequency, deviation and output level). 3) push the [band] key to adjust (automatic) and store the adjustment value. Adjustment adjustment condition operation adjustment item value ...

  • Page 32

    5 - 16 receive adjustment (continued) 1) select an adjustment item using [2] / [8] keys. 2) set the ssg as specifi ed (frequency, deviation and output level). 3) push the [band] key to adjust (automatic) and store the adjustment value. Adjustment adjustment condition operation adjustment item value ...

  • Page 33

    5 - 17 receive adjustment (continued) 1) select an adjustment item using [2] / [8] keys. 2) set the ssg as specifi ed (frequency, deviation and output level). 3) push the [band] key to adjust (automatic) and store the adjustment value. Adjustment adjustment condition operation adjustment item value ...

  • Page 34

    5 - 18 receive adjustment (continued) 1) select an adjustment item using [2] / [8] keys. 2) set the ssg as specifi ed (frequency, deviation and output level). 3) push the [band] key to adjust (automatic) and store the adjustment value. Adjustment adjustment condition operation adjustment item value ...

  • Page 35: Section 6

    6 - 1 section 6 parts list m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) [logic unit] ref order description m. H/v no. No. Location ic1 1140014390 s.Ic hd64f2239tf16v b 16.9/25.4 ic2 1130013010 s.Ic sn74ahc1g08dck3 b 24.3/32.3 ic50 1130011770 s.Ic cd4066bpwr b 5.4/10.9 ...

  • Page 36

    6 - 2 m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) [logic unit] ref order description m. H/v no. No. Location r322 7030005040 s.Res erj2gej 472 x (4.7 k) b 20.3/5.4 r323 7030010040 s.Res erj2gej-jpw b 40.6/31.6 r325 7030005240 s.Res erj2gej 473 x (47 k) b 48.5/21.6 r32...

  • Page 37

    6 - 3 m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) [logic unit] ref order description m. H/v no. No. Location c328 4030018860 s.Cer ecj0eb0j105k b 50/26.2 c329 4030017710 s.Cer ecj0ec1h181j b 50.4/29 c330 4030017460 s.Cer ecj0eb1e102k b 55/31.1 c331 4550007690 s.Tan te...

  • Page 38

    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 ic50 1110005230 s.Ic upc2757tb-e3 t 34.3/13.3 ic100 1110003201 s.Ic ta31136fng (el) t 12.4/39.2 ic150 1110006380 s.Ic lm2904pwr t 15.4/32.2 ic200 1110003201 s.I...

  • Page 39

    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 r304 7030005120 s.Res erj2gej 102 x (1 k) t 35.3/7.8 r305 7030005040 s.Res erj2gej 472 x (4.7 k) t 9/8.8 r306 7030005050 s.Res erj2gej 103 x (10 k) t 6.9/11.4 r...

  • Page 40

    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 c255 4030018860 s.Cer ecj0eb0j105k t 12/25.1 c256 4030016930 s.Cer ecj0eb1a104k t 10.1/26 c257 4030016930 s.Cer ecj0eb1a104k t 21.9/27.7 c258 4030017430 s.Cer e...

  • Page 41

    6 - 7 m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) [rf unit] ref order description m. H/v no. No. Location ic100 1110007060 s.Ic upc3223tb-e3 t 40.2/8.5 ic150 1110004050 s.Ic njm3404av-te1 b 27/5.5 ic800 1130013000 s.Ic lmx2313usldx/nopb t 29.6/27.2 ic900 1110005230 s....

  • Page 42

    6 - 8 m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) [rf unit] ref order description m. H/v no. No. Location l602 6200011580 s.Col lqw18an33ng00d b 24.4/33.9 l603 6200009220 s.Col lqw18an15ng00d b 28.3/28.6 l604 6200009220 s.Col lqw18an15ng00d b 33.4/29 l605 6200009290 s...

  • Page 43

    6 - 9 m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) [rf unit] ref order description m. H/v no. No. Location r661 7030005240 s.Res erj2gej 473 x (47 k) b 45.8/37.1 r662 7030009270 s.Res erj2gej 821 x (820) b 44.6/33.6 r700 7030007290 s.Res erj2gej 222 x (2.2 k) t 18.3/45...

  • Page 44

    6 - 10 m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) [rf unit] ref order description m. H/v no. No. Location c317 4030017460 s.Cer ecj0eb1e102k b 16.5/25.9 c318 4030016790 s.Cer ecj0eb1c103k b 11.8/25.1 c319 4030016790 s.Cer ecj0eb1c103k b 12.2/24.2 c320 4030017460 s.Ce...

  • Page 45

    6 - 11 m.=mounted side (t: mounted on the top side, b: mounted on the bottom side) [rf unit] ref order description m. H/v no. No. Location c905 4030017460 s.Cer ecj0eb1e102k b 43.7/13 c906 4030017440 s.Cer ecj0ec1h221j t 42.9/28.7 c907 4030017440 s.Cer ecj0ec1h221j b 47.7/32.8 c908 4030017730 s.Cer ...

  • Page 46: Section 7

    Section 7 mechanical parts screw abbreviations a, b0, bt: self-tapping ph: pan head zk: black ni-zu: nickel-zinc sus: stainless 7 - 1 [chassis parts] ref order description qty. No. No. J1 6910017840 2905 ant connector 1 s702 2250000630 tp70d974e20-21f-3066 1 w1 8900016810 opc-1792 (incl. W2) 1 w2 89...

  • Page 47

    7 - 2 mp2(l) mp1(l) mp4(l) mp13(l) mp3(l) mp8(l) sp1(l) mp7(l) ds1(l) mp6(l) mp11x8(l) mp24(ch)x3 s702(ch) mp35(ch) mp34(ch) mp9(ch) mp10(ch) mp30(ch) mp16(ch) mp27(ch)x2 mp11(ch) mp4(ch) mp31(ch) mp25(ch) mp2(ch) mp37(ch) mp22(ch) mp18(ch) mp5(ch) mp19(ch) mp20(ch) mp29(ch) mp28x4(ch) mp13(ch) mp15...

  • Page 48: Section 8

    8 - 1 c54 c55 c56 c200 c201 c202 c203 c204 c214 c215 c216 c217 c218 c304 c305 c509 c510 c529 c548 c549 c550 d1 d2 d3 d11 d53 d54 d200 ds201 4 0 2 s d 3 0 2 s d 2 0 2 s d 6 0 2 s d 5 0 2 s d ds207 ds208 ds209 1 1 2 s d 0 1 2 s d ep502 ep507 mc300 q51 q200 q201 q202 q302 q501 q503 q504 q506 r56 r57 r5...

  • Page 49

    8 - 2 c1 c2 c3 c4 c5 c6 c7 c8 c9 c10 c12 c13 c14 c15 c16 c17 c32 c50 c51 c52 c53 c57 c58 c60 c61 c62 c63 c64 c66 c67 c68 c69 c70 c71 c100 c101 c102 c103 c104 c105 c106 c107 c108 c109 c110 c111 c112 c113 c114 c115 c116 c117 c118 c119 c120 c121 c123 c124 c150 c151 c152 c153 c205 c206 c207 c208 c219 c3...

  • Page 50: Section 9

    9 - 1 section 9 block diagram tx sw eeprom mc300 em-140 mic am p buff sp af amp +3 reg buff buff dc-dc amp lpf keyboard matrix lcd amp idc lpf alc am p 1/2 lpf buff lpf lpf 1 2 3 45 6 7 8 9 10 11 12 tp70d974e20 s703 1 com 2 a 3 b 4 com 5 a 6 b ic702:cd4094 i/o ic701:cd4094 i/o cpu q400:2sb1201 q401:...

  • Page 51

    Att rf amp bpf ceramic ant sw rf amp pwr det pwr am p rf amp lpf rf sw agc det bpf bpf ceramic lpf x3 apc ctrl j1000 hec2711 fil loop vco hp f bpf xtal x4 buff att buff rf sw agc det if am p am det bpf ceramic if am p d/a rf sw if am p ygr am p rf amp rf sw drive am p rf sw lpf rf sw bpf buff bpf rf...

  • Page 52: Section 10

    *; refer to “parts list.” 10 - 1 section 10 voltage diagram 6.62v 3.32v 5.01v 3.31v 5.48v 0.14v tx sql open 0.11v chgc:h 11.20v chgh:h 8.05v chgc:h chgh:h 7.73v 11.69v 10.50v 10.28v 3.00v 3.23v 2.67v 1.32v light on :3.07v light off:0.20v 5.01v 2.17v 1.63v sn74ahc1g08dck3 i c2 1 2 3 4 5 1 k r 1 5 4 2...

  • Page 53

    *; refer to “parts list.” 10 - 2 fm:0.01v dv:3.25v dv:0.13v fm:3.26v tx:3.24v rx:0.35v intsp:0.00v exitsp:3.13v on:3.14v off:0.01v fm:0.40v dv:4.73v fm:0.00v dv:3.13v fm:0.00v dv:3.19v dv:4.25v fm:4.47v 3.19v 3.95v 5.00v 7.38v 0 . 0 0 1 c 534 4 7 k r 5 2 3 xp1501 q401 1 2 34 5 0 .1 c517 0 . 0 4 7 c3...

  • Page 54

    *; refer to “parts list.” 10 - 3 a am:2.83v a other :0.0v a ctcss on : 3.14v a ctcss off : 0.0v b ctcss off : 0.2v b ctcss on : 3.11v a:0.4v b:3.11v tx:0.02v rx:3.09v fm:0.01v dv:3.09v tx:3.08v rx:0.0v a:3.11v b:0.4v a wfm:0.10v 0.001 c719 0.001 c707 1.5k r218 220p c614 0.1 c558 0.01 c551 150k r220 ...

  • Page 55

    *; refer to “parts list.” 10 - 4 a:2.63v b:0.15v wfm:0.20v a:0.2v b:2.51v wfm:2.48v rx:0.0v tx:5.0v rx:6.90v tx:6.72v a:0.40v b:3.10v b fm:3.01v b fm-n::0.0v b:145mhz 2.33v b:435mhz 2.55v b:435mhz 1.25v b:435mhz 3.17v b:145mhz 1.60v b:145mhz 2.95v a wfm:0.10v a fm:3.10v a wfm:3.08v a fm:0.18v a wfm:...

  • Page 56

    10 - 5 a:other b a:vhf rx:3.3v rx:0.12v a:800m rx:0.51v a,b;uhf rx;0.58v a:435m rx:2.87v a:435m rx:0.61v b:435m rx:0.63v a:800m rx:2.69v c;5.3v rx:3.16v rx:0.35v a:300m c:5.00v c:4.42v a:97.1m/220m rx:3.03v rx:0.68v a:97.1m/220m rx:1.04v a:97.1m/220m a,rx;0.22v b,rx;3.3v 0.001 c26 0.001 c23 47k r5 1...

  • Page 57

    A:vhf a:other band rx:0.12v rx:3.3v band rx;0.0v tx;4.98v rx:2.91v a:145m b:145m rx:0.6v a:145m rx:2.96v b:145m rx:0.64v a,b:vhf rx:2.94v tx:0v rx:0.50v a,b:vhf tx:0v uhf rx:5.31v(vhf tx) vhf tx:0v rx:5.33v(uhf tx) tx:4.99v a,b:vhf tx:4.24v a:45m rx:3.13v rx:3.11v a:15m 12.1n l102 0.33u l203 6p c12 ...

  • Page 58

    10 - 7 lqw18an5n6c00 l 1 0 2 2s c 5 0 0 6 q101 1 0 k r 4 2 s c 5 0 0 6 q202 4 7 r 2 0 5 4 7 k r 5 1 5 p c 1 1 0 0 . 0 0 1 c 2 0 5 4 7 k r 1 0 1 0 . 0 0 1 c1 unr9211j q102 0 . 0 0 1 c57 0 . 0 0 1 c51 2 . 2 k r 1 0 0 . 0 0 1 c 1 1 4 0 . 0 0 1 c10 2 . 2 m r 6 1 4 7 k r 1 lqw18anr15g00d l 3 unr9211j q2 ...

  • Page 59

    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) 61 ...

  • Page 60

    1-1-32, kamiminami, hirano-ku, osaka 547-0003, japan s-14416xz-c1 © 2008 icom inc..