Summary of IC-F11
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Service manual 1-1-32, kamiminami, hirano-ku, osaka, 547-0003, japan s-13806iz-c1v © 2001 icom inc. Vhf transceivers.
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Introduction danger ordering parts repair notes this service manual describes the latest service information for the ic-f11/ic-f11s/ic-f11br/ic-f12/ic-f12s at the time of publication. Never connect the transceiver to an ac outlet or to a dc power supply that uses more than 16 v. Such a connection co...
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Table of contents section 1 specifications section 2 inside views section 3 disassembly instructions section 4 circuit description 4-1 receiver circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 4-2 transmitter circuits . . . . . . ....
Page 4: Section 1 Specifications
Section 1 specifications 1 - 1 all stated specifications are subject to change without notice or obligation. Frequency coverage type of emission number of channels power supply requirement antenna impedance input impedance (mic) output impedance (audio) intermediate frequency operating temperature r...
Page 5: Section 2
2 - 1 section 2 inside views • main unit power amplifier (q1: 2sk2974) antenna switching circuit d1: 1sv307 d9: isv307 d10: ma77 top view bottom view rf amplifier (q15: 3sk294) vco circuit fm if ic (ic3: ta31136fn) low-pass filter circuit (ic12,16: njm12904v) expander ic (ic15: bu4094bcfv) tx/rx swi...
Page 6: Section 3
3 - 1 section 3 disassembly instructions • removing the chassis ¡ unscrew 1 nut, a , and remove 2 knobs, b , c . ™ unscrew 2 screws, d . £ unscrew 2 screws, h , to separate the jack panel and the front panel. ¢ take off the chassis in the direction of the arrow. ∞ unplug j6 to separate the front pan...
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Section 4 circuit description 4 - 1 4-1 receiver circuits 4-1-1 antenna switching circuit the antenna switching circuit functions as a low-pass filter while receiving. However, its impedance becomes very high while d9 and d10 are turned on. Thus transmit signals are blocked from entering the receive...
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4 - 2 the applied af signals are amplified at the af power ampli- fier circuit (ic4, pin 4) to obtain the specified audio level. The amplified af signals output from pin 10 as “afout”signal are applied to the internal speaker (sp1) as the “sp” signal via the [sp] jack when no plug is connected to th...
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4 - 3 4-3 pll circuit 4-3-1 general 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 a crystal oscillator and th...
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4 - 4 4-4 power supply circuits voltage line line hv vcc cpu5v t5v r5v s5v +5v vco5v description the voltage from the attached battery pack. The same voltage as the hv line (battery volt- age) which is controlled by the power swtich ([vol] control). Common 5 v converted from the vcc line by the +5 r...
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4 - 5 pin number 61 62 port name bdet batv description input port for the battery’s type detec- tion. Input port for battely voltage detection. 4-5-3 d/a convertor ic (ic9) pin number 2, 3, 10, 11 14 15 22 port name t1–t4 ref bal dev description output tunable bandpass filters con- trol signals. Out...
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5 - 1 5-1 preparation when you adjust the contents on page 5-5 or 5-6, software adjustment, the optional cs-f11 adj adjustment software (rev. 1.0 or later), opc-478 cloning cable and a jig cable (see illustration at page 5-2) are required. ■ required test equipment section 5 adjustment procedures eq...
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5 - 2 jig cable + ( clone) ( gnd) + ( sp) ( spe) 3-conductor 3.5(d) mm plug opc-478 jig cable to ic-f4gt/gs [sp] jack cs-f11 adj rev.1.0 file com 1: open option connect reload (f5) disp para [a / d] vin : 197 : c5h : 7.73 v temps : 190 : beh : 32.23 ’c lvin : 98 : 62h : 1.92 v sd : 0 : 00h : 0.00 v ...
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5 - 3 to an rs-232c port personal computer to [mic] to [sp] jig cable db9 female plug (incl. Level converter circuit) connection to the antenna connector rf power meter 0.1 10 w/50 frequency counter attenuator 40 db or 50 db fm deviation meter standard signal generator 0.1 v to 32 mv ( 127 dbm to 17...
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5 - 4 l16 pll lock voltage adjustment top view rf power meter lv pll lock voltage check point 5-2 pll adjustment pll lock voltage 1 2 3 • operating frequency: 174.000 mhz • transmitting • operating frequency: 146.000 mhz • receiving • transmitting main connect a digital multi meter to check point lv...
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5 - 5 1 1 2 3 1 2 1 • operating frequency: 174.000 mhz* 1 158.4075 mhz* 2 • high/low switch : low • connect the rf power meter or 50 Ω dummy load to the antenna connector. • transmitting • operating frequency: 146.000 mhz* 1 151.505 mhz* 2 • high/low switch : high • transmitting • high/low switch : ...
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5 - 6 minimum distortion level 12 db sinad at the point where the audio signals just appears. 1 • operating frequency: 146.000 mhz* 1 151.505 mhz* 2 • channel spacing :narrow • connect a standard signal generator to the antenna connector and set as: frequency : 146.000 mhz* 1 151.505 mhz* 2 level : ...
Page 18: Section 6
[main unit] [sw-a unit] ([f11] and [f12] only) q1 1590003020 s.Transistor xp4216-(tx) r1 7210003060 variable tp76n00n-15f-10ka-2251 r2 7030003380 s.Resistor erj3geyj 331 v (330 Ω ) r3 7030003410 s.Resistor erj3geyj 561 v (560 Ω ) f1 5210000710 s.Fuse kab 2402 322 na29 ds1 5040002070 s.Led lnj107w5pr...
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[main unit] [main unit] s.=surface mount l9 6200005710 s.Coil eljre 27ng-f l10 6200006980 s.Coil eljre r10g-f l11 6200006980 s.Coil eljre r10g-f l15 6200004920 s.Coil mlf1608a 2r2k-t l16 6200008190 s.Coil 0.25-1.9-8tl 80n l17 6200002860 s.Coil nl 252018t-4r7j l18 6200005720 s.Coil eljre 33ng-f l19 6...
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S.=surface mount [main unit] [main unit] r154 7030003940 s.Resistor erj3geyf 104 v (100 k Ω ) r155 7030003200 s.Resistor erj3geyj 100 v (10 Ω ) r156 7030003800 s.Resistor erj3geyj 105 v (1 m Ω ) r157 7030003570 s.Resistor erj3geyj 123 v (12 k Ω ) r158 7030003570 s.Resistor erj3geyj 123 v (12 k Ω ) r...
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[main unit] [main unit] s.=surface mount c84 4030006900 s.Ceramic c1608 jb 1e 103k-t-a c85 4510005860 s.Electrolytic ecev1ha2r2sr c86 4030006860 s.Ceramic c1608 jb 1h 102k-t-a c87 4030007090 s.Ceramic c1608 ch 1h 470j-t-a c88 4030011600 s.Ceramic c1608 jb 1c 104kt-n c89 4030006860 s.Ceramic c1608 jb...
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S.=surface mount [main unit] c239 4030006860 s.Ceramic c1608 jb 1h 102k-t-a c240 4030007090 s.Ceramic c1608 ch 1h 470j-t-a c242 4030008470 s.Ceramic c1608 jb 1h 272k-t-a c243 4030008770 s.Ceramic c1608 jb 1h 562k-t-a c244 4030007160 s.Ceramic c1608 ch 1h 181j-t-a c245 4030009630 s.Ceramic c1608 jb 1...
Page 23: Section 7
Section 7 mechanical parts and disassembly 7 - 1 ref. No. Oder no. Description qty. Sp1 2510001100 speaker 036d0601 1 mp1 8210017710 2458 front panel 1 mp4 8930054680 2458 release button 1 mp6 8930054690 2458 lens 1 mp7 8210017730 2458 jack panel 1 mp8 8930054881 2458 plus terminal-1 1 mp9 801001850...
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7 - 2 unit abbreviation (c): chassis parts, (m): main unit main unit mp28 (c) mp15 (c) mp10 (c) mp21 (c) mp32 (c) mp8 (c) mp29 (c) mp29 (c) mp12 (c) mp9 (c) mp22 (c) ic-f11br, f11s, f12s mp34 (c) mp27 (c) mp14 (c) mp13 (c) mp39 (c) mp29 (c) mp35 (c)([f11br, f11s, f12s] only) mp29 (c) mp7 (c) mp20 (c...
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Section 8 semi-conductor information 8 - 1 2sc5085 y (symbol: mcy) 2sk1829 (symbol: k1) 2sc5107 o (symbol: mfo) 2sc5110 o (symbol: mgo) 2sk880 y (symbol: xy) 2sk2974 (symbol: k2974) 2sc4116 gr (symbol: lg) 2sa1577 q (symbol: hq) 2sb1132 r (symbol: barb) 3sk272 (symbol: k) 2sc4215 o (symbol: qo) 2sk2...
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Section 9 board layouts 9 - 1 9-1 main unit • top view c196 r159 c194 r156 c193 x3 c242 r222 r223 c244 r224 c243 r215 c246 r155 r225 r226 c245 r122 c223 r143 r146 ic16 c191 r151 r163 r50 c258 r248 r51 d19 r230 c84 ic15 r164 c253 c252 x1 c86 r250 c87 c197 c210 c201 l29 c208 q23 r246 c88 q24 c209 r170...
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9 - 2 • bottom view r134 d18 c161 c162 c182 r133 r228 c183 c181 r130 q21 r229 q33 r131 r132 r126 r227 c257 c107 r65 c102 c105 l21 d12 d10 c101 r62 l20 c106 c104 r70 d13 l54 c111 c113 r66 c249 c265 c108 c100 d9 l19 c99 d1 c5 c6 l1 c4 l2 c7 c14 c13 l4 c12 l5 c1 c2 c3 c10 c11 ep4 ep5 w8 ic2 c97 r58 r59...
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9 - 5 9-2 sw-a and sw-b units • top view sw-a unit f1 q1 ds1 b5603c sw-b unit f1 q1 ds1.
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9 - 6 • bottom view sw-a unit sw-b unit r2 r3 r1 s1 j2 to the main unit j2 1 7 cbi0 volout volin vcc rled tled gnd j1 to the main unit j1 1 4 cbi0 cbi1 cbi2 cbi3 s1 w1 r2 r3 w2 r1 b5604c j2 to the main unit j2 1 7 cbi0 volout volin vcc rled tled gnd.
Page 30: Section 10
10 - 1 section 10 bc-146 optional desktop charger information ref. No. Oder no. Description qty. Mp1 8010018620 2447 case (a) 1 mp2 8110007450 2447 cover 1 mp3 8930039620 leg cushion (a) 4 mp4 8930055020 2480 spacer 1 mp5 8930055030 2480 bc-spacer 1 mp6 8810008660 screw b0 m 3 x 8 ni-zu (bt) 1 [chas...
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10 - 2 10-3 voltage diagram 10-4 board layout mp1 r1 68 j1 hec0470-01-230 r2 1k ds1 tlg124a mp2 c : 13.8v n : 13.8v c : 7.2v n : 13.8v c : 9.2v n : 13.8v j1 mp1 mp2 b5650 r1 r2 ds1.
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11 - 1 section 11 block diagram ant 440–470mhz q1 2sk2974 d1 1sv307 d9,d10 ma77 d2 rb706f-40 q2 2sk2973 q3 2sc3585 q4 2sc5107 vco sw d3,d4 ma77 q7 2sc5107 q5 2sc5107 q8 dtc144eu q9 xp1214 r5v s5v rx vco q12 xp6501 q10 2sc5085 d5 hvu350 q11 2sc5085 d7 hvu350 lvin buff q13 2sk880 ic1 mb15a02pfv1 x1 cr...
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R47 47 q11 2sc5085 y vcc cbi0 cbi1 cbi2 cbi3 rled tled cbi0 c156 0.001 c157 0.001 c158 0.001 c159 0.001 w13 d only w12 d only w11 d only volin volout c93 47 p c94 47 p f1 f2 c84 0.01 r51 47 k d19 hvc362 c85 2.2 r50 10 k ref bal r52 1k c92 0.1 d20 ma2s111 r232 150 k oscin oscout vp vcc do gnd ld fin ...
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Q11 2sc5085 y c3 24 p c5 22 p c6 0.001 r1 82 k d1 1sv307 l1 32 nh l2 30 nh c8 47p c9 0.001 c18 47 p c20 0.001 r2 150 l3 4.7 h t5v c34 0.001 c35 47 p r13 10 l6 exccl3225u c45 47 p r16 100 r19 100 r22 220 r24 100 t5v vco5v c48 0.001 r5v s5v rssi r5v vco5v s5v rssi rssi c37 0.001 c38 9 p c39 12 p c40 0...
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R47 47 q11 2sc5085 y vcc cbi0 cbi1 cbi2 cbi3 rled tled cbi0 c156 0.001 c157 0.001 c158 0.001 c159 0.001 w13 d only w12 d only w11 d only volin volout c93 47 p c94 47 p f1 f2 c84 0.01 r51 47 k d19 hvc362 c85 2.2 r50 10 k ref bal r52 1k c92 0.1 d20 ma2s111 r232 150 k oscin oscout vp vcc do gnd ld fin ...
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12 - 2 12-2 sw-a and sw-b units • sw-a unit tp76n00n-15f-10ka-2251 r1 q1 xp4216 r3 560 r2 330 ds1 lnj107w5prw c 1 1 2 2 3 4 4 8 5 s1 cp10 cp11 cp12 cbi0 cbi1 cp13 cbi2 cbi3 cp8 hv f1 6 5 4 3 2 1 cp3 cp4 cp5 cp6 cp2 cp9 cbi0 volin volout vcc rled tled gnd cp1 g r rx (sql open) 4.1 v rx (sql open) 0 v...
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Introduction danger ordering parts repair notes this service manual describes the latest service information for the ic-f11/ic-f11s/ic-f11br/ic-f12/ic-f12s at the time of publication. Never connect the transceiver to an ac outlet or to a dc power supply that uses more than 16 v. Such a connection co...
Page 38: Service
Service manual 1-1-32, kamiminami, hirano-ku, osaka, 547-0003, japan s-13806iz-c1v © 2001 icom inc. Vhf transceivers.
Page 39: Service
Service manual uhf transceivers 1-1-32, kamiminami, hirano-ku, osaka, 547-0003, japan s-13806iz-c1u © 2001 icom inc..
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Introduction danger ordering parts repair notes this service manual describes the latest service information for the ic-f21/ic-f21s/ic-f21br/ic-f21gm/ic-f22/ic- f22s/ic-f22sr at the time of publication. Never connect the transceiver to an ac outlet or to a dc power supply that uses more than 8.6 v. ...
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Table of contents section 1 specifications section 2 inside views section 3 disassembly instructions section 4 circuit description 4-1 receiver circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 4-2 transmitter circuits . . . . . . ....
Page 42: Section 1
1 - 1 section 1 specifications all stated specifications are subject to change without notice or obligation. Frequency coverage type of emission number of channels power supply requirement antenna impedance input impedance (mic) output impedance (audio) intermediate frequency operating temperature r...
Page 43: Section 2
2 - 1 section 2 inside views • main unit power amplifier (q1: 2sk2974) antenna switching circuit d1: 1sv307 d9, d10: ma77 top view bottom view rf amplifier (q15: 3sk293) vco circuit fm if ic (ic3: ta31136fn) low-pass filter circuit (ic12,16: njm12904v) expander ic (ic15: bu4094bcfv) tx/rx switch (d3...
Page 44: Section 3
3 - 1 section 3 disassembly instructions • removing the chassis ¡ unscrew 1 nut, a , and remove 2 knobs, b , c . ™ unscrew 2 screws, d . £ unscrew 2 screws, h , to separate the jack panel and the front panel. ¢ take off the chassis in the direction of the arrow. ∞ unplug j6 to separate the front pan...
Page 45: 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. However, its impedance becomes very high while d9 and d10 are turned on. Thus transmit signals are blocked from entering the receive...
Page 46
4 - 2 the applied af signals are amplified at the af power ampli- fier circuit (ic4, pin 4) to obtain the specified audio level. The amplified af signals output from pin 10 as “afout”signal are applied to the internal speaker (sp1) as the “sp” signal via the [sp] jack when no plug is connected to th...
Page 47
4 - 3 4-3 pll circuit 4-3-1 general 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 a crystal oscillator and th...
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4 - 4 4-4 power supply circuits voltage line line hv vcc cpu5v t5v r5v s5v +5v vco5v description the voltage from the attached battery pack. The same voltage as the hv line (battery volt- age) which is controlled by the power swtich ([vol] control). Common 5 v converted from the vcc line by the +5 r...
Page 49
4 - 5 pin number 61 62 port name bdet batv description input port for the battery’s type detec- tion. Input port for battely voltage detection. 4-5-3 d/a convertor ic (ic9) pin number 2, 3, 10, 11 14 15 22 port name t1–t4 ref bal dev description output tunable bandpass filters con- trol signals. Out...
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5 - 1 5-1 preparation when you adjust the contents on page 5-5 or 5-6, software adjustment, the optional cs-f21 adj adjustment software (rev. 1.0 or later), opc-478 cloning cable and a jig cable (see illustration at page 5-2) are required. ■ required test equipment section 5 adjustment procedures eq...
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5 - 2 jig cable + ( clone) ( gnd) + ( sp) ( spe) 3-conductor 3.5(d) mm plug opc-478 jig cable to ic-f4gt/gs [sp] jack cs-f21 adj rev.1.0 file com 1: open option connect reload (f5) disp para [a / d] vin : 197 : c5h : 7.73 v temps : 190 : beh : 32.23 ’c lvin : 98 : 62h : 1.92 v sd : 0 : 00h : 0.00 v ...
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5 - 3 to an rs-232c port personal computer to [mic] to [sp] jig cable db9 female plug (incl. Level converter circuit) connection to the antenna connector rf power meter 0.1 10 w/50 frequency counter attenuator 40 db or 50 db fm deviation meter standard signal generator 0.1 v to 32 mv ( 127 dbm to 17...
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5 - 4 c54 pll lock voltage adjustment (rx) top view rf power meter c68 pll lock voltage adjustment (tx) lv pll lock voltage check point 5-2 pll adjustment pll lock voltage 1 2 • operating frequency : 440.000 mhz a 462.550 mhz b , c 446.00625 mhz d • receiving • transmitting main connect a digital mu...
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5 - 5 1 1 2 3 1 2 1 • operating frequency: 470.000 mhz a 469.550 mhz b 467.725 mhz c 446.00625 mhz d • high/low switch : low • connect the rf power meter or 50 Ω dummy load to the antenna connector* 1 . • transmitting • operating frequency: 440.000 mhz a 462.550 mhz b , c 446.00625 mhz d • high/low ...
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5 - 6 minimum distortion level 12 db sinad at the point where the audio signals just appears. 1 • operating frequency: 470.000 mhz a 469.550 mhz b 467.725 mhz c 446.09375 mhz d • channel spacing :narrow • connect a standard signal generator to the antenna connector* 1 and set as: frequency : 470.000...
Page 56: Section 6
[main unit] [sw-a unit] ([f21], [f21gm], [f22] and [f22sr]) q1 1590003020 s.Transistor xp4216-(tx) r1 7210003060 variable tp76n00n-15f-10ka-2251 r2 7030003380 s.Resistor erj3geyj 331 v (330 Ω ) r3 7030003410 s.Resistor erj3geyj 561 v (560 Ω ) f1 5210000710 s.Fuse kab 2402 322 na29 ds1 5040002070 s.L...
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[main unit] [main unit] s.=surface mount l9 6200005680 s.Coil eljre 15ng-f l10 6200005710 s.Coil eljre 27ng-f l11 6200005710 s.Coil eljre 27ng-f l13 6200009360 s.Coil 0.45-1.4-3tl 11n l14 6200002860 s.Coil nl 252018t-4r7j l15 6200002800 s.Coil eljfc r68m-f l16 6200009360 s.Coil 0.45-1.4-3tl 11n l17 ...
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S.=surface mount [main unit] [main unit] r142 7030003680 s.Resistor erj3geyj 104 v (100 k Ω ) r143 7030003680 s.Resistor erj3geyj 104 v (100 k Ω ) d only r145 7030003680 s.Resistor erj3geyj 104 v (100 k Ω ) c only r146 7030003680 s.Resistor erj3geyj 104 v (100 k Ω ) r147 7410000950 s.Array exb-v8v 1...
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[main unit] [main unit] s.=surface mount c64 4030007010 s.Ceramic c1608 ch 1h 100d-t-a c65 4030009920 s.Ceramic c1608 ch 1h 050b-t-a c66 4030009540 s.Ceramic c1608 ch 1h 1r5b-t-a c67 4030009570 s.Ceramic c1608 ch 1h 0r3b-t-a c68 4540000040 s.Trimmer ecr-kn006 a61x c69 4030009920 s.Ceramic c1608 ch 1...
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S.=surface mount [main unit] c236 4030008880 s.Ceramic c1608 jb 1h 223k-t-a c237 4030006860 s.Ceramic c1608 jb 1h 102k-t-a c238 4030006860 s.Ceramic c1608 jb 1h 102k-t-a c239 4030006860 s.Ceramic c1608 jb 1h 102k-t-a c240 4030007090 s.Ceramic c1608 ch 1h 470j-t-a c242 4030008470 s.Ceramic c1608 jb 1...
Page 61: Section 7
Section 7 mechanical parts and disassembly 7 - 1 ref. No. Oder no. Description qty. Sp1 2510001100 speaker 036d0601 1 mp1 8210017710 2458 front panel 1 mp4 8930054680 2458 release button 1 mp6 8930054690 2458 lens 1 mp7 8210017730 2458 jack panel 1 mp8 8930054881 2458 plus terminal-1 1 mp9 801001850...
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7 - 2 unit abbreviation (c): chassis parts, (m): main unit main unit mp29 (c) mp28 (c) mp15 (c) mp10 (c) mp21 (c) mp32 (c) mp8 (c) mp29 (c) mp29 (c) mp12 (c) mp9 (c) mp22 (c) ic-f21s, f21br, f22s mp34 (c) mp27 (c) mp14 (c) mp13 (c) mp39 (c) mp29 (c) mp35 (c) ([f21s], [f21br] and [f22s] only) mp7(m) ...
Page 63
Section 8 semi-conductor information 8 - 1 2sc5085 y (symbol: mcy) 2sk1829 (symbol: k1) 2sc5107 o (symbol: mfo) 2sk880 y (symbol: xy) 2sk2974 (symbol: k2974) 2sc4116 gr (symbol: lg) 2sa1577 q (symbol: hq) 2sb1132 r (symbol: barb) 3sk272 (symbol: k) 2sc4215 o (symbol: qo) 2sk2973 (symbol: k1) dtc144 ...
Page 64
Section 9 board layouts 9 - 1 9-1 ic-f22/f22s/f22sr main unit • top view c196 r159 c194 r156 c193 x3 x3 r151 c191 c242 c246 r155 r222 r223 c244 ic16 r122 j6 r224 c243 r225 r226 r215 ep7 c223 c245 c258 r143 r145 r146 r189 r187 r194 c224 r191 r188 r195 ic15 r164 r51 r163 r50 c84 c252 d19 x1 x1 r244 c2...
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9 - 2 • bottom view r134 c182 r133 c161 c162 d18 c183 c181 q21 r130 r228 r227 q33 r229 c102 d10 c105 l21 r131 r132 r126 c180 c257 c106 d12 r63 c103 c104 r62 r66 c249 r64 q15 r65 c107 c1 10 c109 r68 c114 c 111 c108 c1 12 r69 l22 c1 13 d13 c118 r73 r70 c115 r71 ic6 r127 r118 c179 r125 c173 r72 c1 16 c...
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9-2 ic-f21/f21s/f21br/f21gm main unit • top view 9 - 3 c196 r159 c194 r156 c193 c242 x3 x3 r222 r223 c244 c246 r155 ic16 r224 c243 r215 r225 r226 c245 r122 c191 r151 ic15 r163 r164 r51 c252 c84 d19 x1 x1 c197 c210 r244 c201 l29 c208 q23 c209 r170 q25 q24 c88 c87 c86 c192 r169 c206 r153 c259 ic10 c70...
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• bottom view 9 - 4 r134 c182 r133 c181 d18 c161 c162 r228 r227 c183 q21 r130 r131 c102 c105 l21 r229 q33 c257 r132 r126 c180 c106 ic6 r124 r127 c176 r118 c179 c173 c114 c1 13 c115 r71 r70 d13 r73 c1 16 c118 l23 r125 c119 d14 d15 r72 c1 17 c120 c249 c108 c1 12 r69 r63 c103 c104 r62 r66 d12 r64 q15 c...
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9 - 5 9-3 sw-a and sw-b units • top view sw-a unit f1 q1 ds1 b5603c sw-b unit f1 q1 ds1.
Page 69
9 - 6 • bottom view sw-a unit sw-b unit s1 r2 r3 r1 j2 to the main unit j2 1 7 cbi0 volout volin vcc rled tled gnd j1 to the main unit j1 1 4 cbi0 cbi1 cbi2 cbi3 s1 w1 w2 r2 r3 r1 b5604c j2 to the main unit j2 1 7 cbi0 volout volin vcc rled tled gnd.
Page 70: Section 10
10 - 1 section 10 bc-146 optional desktop charger information ref. No. Oder no. Description qty. Mp1 8010018620 2447 case (a) 1 mp2 8110007450 2447 cover 1 mp3 8930039620 leg cushion (a) 4 mp4 8930055020 2480 spacer 1 mp5 8930055030 2480 bc-spacer 1 mp6 8810008660 screw b0 m 3 x 8 ni-zu (bt) 1 [chas...
Page 71
10 - 2 10-3 voltage diagram 10-4 board layout mp1 r1 68 j1 hec0470-01-230 r2 1k ds1 tlg124a mp2 c : 13.8v n : 13.8v c : 7.2v n : 13.8v c : 9.2v n : 13.8v j1 mp1 mp2 b5650 r1 r2 ds1.
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11 - 1 section 11 block diagram ant 440–470mhz q1 2sk2974 d1 1sv307 d9,d10 ma77 d2 rb706f-40 q2 2sk2973 q3 2sc3585 q4 2sc5107 vco sw d3,d4 ma77 q7 2sc5107 q5 2sc5107 q8 dtc144eua q9 xp1214 r5v s5v rx vco q12 xp6501 q10 2sc5085 d5 hvu350b q11 2sc5085 d7 hvu350b lvin buff q13 2sk880 ic1 mb15a02pfv1 x1...
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R47 47 ep3 vcc cbi0 cbi1 cbi2 cbi3 rled tled cbi0 c156 0.001 c157 0.001 c158 0.001 c159 0.001 w12 e only w13 e only ep7 e only volin volout c93 47 p c94 47 p f1 f2 c84 0.001 r51 47 k d19 hvc362 c85 2.2 r50 56 k ref bal r52 1 k c92 0.1 d20 ma2s111 r232 150 k oscin oscout vp vcc do gnd ld fin clock 9 ...
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Ep3 c261 47 p c2 1 p b only c3 7 p c5 4 p c6 0.001 r1 82 k d1 1sv307 l1 14 nh l2 14 nh c8 47p c9 0.001 c18 47 p c20 0.001 r2 100 l3 0.82 h t5v c34 47 p c35 47 p r11 10 r13 220 l6 3225 h w14 c45 47 p r16 10 k r19 100 r22 220 r24 100 c260 0.001 t5v vco5v vco5v c48 0.001 r5v s5v rssi r5v vco5v s5v rssi...
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R47 47 ep3 c261 47 p c2 1 p b only vcc cbi0 cbi1 cbi2 cbi3 rled tled cbi0 c156 0.001 c157 0.001 c158 0.001 c159 0.001 w12 e only w13 e only ep7 e only volin volout c93 47 p c94 47 p f1 f2 c84 0.001 r51 47 k d19 hvc362 c85 2.2 r50 56 k ref bal r52 1 k c92 0.1 d20 ma2s111 r232 150 k oscin oscout vp vc...
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12 - 2 12-2 sw-a and sw-b units • sw-a unit tp76n00n-15f-10ka-2251 r1 q1 xp4216 r3 560 r2 330 ds1 lnj107w5prw c 1 1 2 2 3 4 4 8 5 s1 cp10 cp11 cp12 cbi0 cbi1 cp13 cbi2 cbi3 cp8 hv f1 6 5 4 3 2 1 cp3 cp4 cp5 cp6 cp2 cp9 cbi0 volin volout vcc rled tled gnd cp1 g r rx (sql open) 4.1 v rx (sql open) 0 v...
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Introduction danger ordering parts repair notes this service manual describes the latest service information for the ic-f21/ic-f21s/ic-f21br/ic-f21gm/ic-f22/ic- f22s/ic-f22sr at the time of publication. Never connect the transceiver to an ac outlet or to a dc power supply that uses more than 8.6 v. ...
Page 78: Service
Service manual uhf transceivers 1-1-32, kamiminami, hirano-ku, osaka, 547-0003, japan s-13806iz-c1u © 2001 icom inc..