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6-9-16, Kamihigashi, Hirano-ku, Osaka 547-0002, Japan

A-5452MI-S-

SERVICE
MANUAL

VHF FM TRANSCEIVERS

iC-f3
iC-f3s

UHF FM TRANSCEIVERS

iC-f4
iC-f4s

iC
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f
3

iC
-

f
3
s

iC
-

f
4

iC-f4s

*IC-F3/F3S,F4/F4S cover(GB) 99.6.8 3:24 PM Page 1

Содержание IC-F3

Страница 1: ...SERVICE MANUAL VHF FM TRANSCEIVERS iC f3 iC f3s UHF FM TRANSCEIVERS iC f4 iC f4s iC f3 iC f3s iC f4 iC f4s...

Страница 2: ......

Страница 3: ...for IC F3 S 5 3 5 3 TRIMMER ADJUSTMENT for IC F3 S 5 4 5 4 TRANSMITTER ADJUSTMENT for IC F3 S 5 5 5 5 RECEIVER ADJUSTMENT for IC F3 S 5 6 5 6 PLL ADJUSTMENT for IC F4 S 5 7 5 7 TRIMMER ADJUSTMENT for...

Страница 4: ...000 512 000 MHz H1 band 490 000 520 000 MHz H2 band 16K0F3E W type 14K0F3E M type F3 S only 8K50F3E N type 32 ch 16 channels 2 banks 2 BANK version 16 ch 16 channel version 9 6 V DC negative ground su...

Страница 5: ...4 MA77 1st mixer circuit Q13 3SK166 2 PLL reference oscillator X1 CR 575 15 3 MHz CPU IC8 EEPROM IC7 VCO circuit APC control circuit Mute switch IC4 BU4066BCFV PLL IC IC1 PD3140GS Microphone amplifier...

Страница 6: ...LL reference oscillator X1 15 3 MHz CPU IC8 EEPROM IC7 VCO circuit APC control circuit Mute switch IC4 BU4066BCFV PLL IC IC1 PD3140GS Microphone amplifier circuit FM IF IC IC2 TA31136FN Antenna switch...

Страница 7: ...l and chassis Removing the MAIN unit q Remove the sealing rubber w Unsolder 3 points D and unscrew 1 nut E e Unscrew 2 screws F and 6 screws G silver 2 mm to separate the chassis and MAIN unit r Take...

Страница 8: ...of sponge 3 Connect either a UT 80 UT 96 or UT 105 optional unit to J5 4 Attached the 1556 sponge to the specified position at the unit as following illustration 5 Replace the option cover to the chas...

Страница 9: ...m the RF circuit are mixed at the 1st mixer Q13 with a 1st LO signal coming from the VCO circuit to produce a 31 05 MHz IC F3 S or 46 35 MHz IC F4 S 1st IF signal The 1st IF signal is applied to a pai...

Страница 10: ...through the mute switch IC4 pins 8 10 and the deviation adjustment pot R119 IC F4 S only 4 2 2 MODULATION CIRCUIT The modulation circuit modulates the VCO oscillating signal RF signal using the micro...

Страница 11: ...frequency If the oscillated signal drifts its phase changes from that of the reference frequency causing a lock voltage change to compensate for the drift in the oscillated frequency A portion of the...

Страница 12: ...selected Outputs RX mute control signal Low When muted Input ports for key matrix Outputs R5 regulator control signal Low While receiving Outputs S5 regulator control signal Low While power is ON Out...

Страница 13: ...adjustment screen appears set or modify the data as desired NOTE When the EEPROM IC7 is replaced or the transceiver displays an error message and beeps the following oper ation is necessary before st...

Страница 14: ...A 3 T1 192 C0h 3 765V D A 4 T2 198 C6h 3 882V D A 5 T3 204 CCh 4 000V D A 6 T4 PWR 114 72h 2 235V RX 174 00000MHz TX 174 00000MHz Base Freq 174 00000MHz PWR High TAB Display Parameters F8 at BPF Swee...

Страница 15: ...L band 4 3 V H band 2 2 3 2 V L band 3 1 4 1 V H band MAIN L11 Verify ADJUSTMENT ADJUSTMENT CONDITIONS UNIT LOCATION VALUE UNIT ADJUST MEASUREMENT ADJUSTMENT connect soldering here DC power supply see...

Страница 16: ...mitting Operating freq 143 000 MHz L band 160 000 MHz H band High Low switch Low Connect an audio generator to the MIC jack and set as 1 kHz 150 mV Set an FM deviation meter as HPF OFF LPF 20 kHz De e...

Страница 17: ...the MIC jack DTCS code 007 Transmitting Top panel Connect an FM devia tion meter with an oscilloscope to the antenna connector through an attenuator MAIN R150 ADJUSTMENT ADJUSTMENT CONDITIONS UNIT LO...

Страница 18: ...se to close squelch Receiving Top panel Connect an SSG to the antenna connector and SINAD meter with an 8 load to the SP jack 12 dB SINAD At the point where the audio signals just appears SSG MAIN Out...

Страница 19: ...2 band Receiving Transmitting MAIN Connect a multimeter to check point CP1 1 3 V 2 5 4 2 V H1 band 3 0 4 5 V other MAIN L11 L405 Verify ADJUSTMENT ADJUSTMENT CONDITIONS UNIT LOCATION VALUE UNIT ADJUST...

Страница 20: ...nel Loosely couple a frequency counter to the antenna con nector Connected comput er screen Power Hi Connect an RF power meter to the antenna connector Connect an SSG to the antenna con nector and a S...

Страница 21: ...MHz L band 440 000 MHz ML band 470 000 MHz MH band 490 000 MHz H1 H2 bands High Low switch Low Connect an audio generator to the MIC jack and set as 1 kHz 150 mV Set an FM deviation meter as HPF OFF...

Страница 22: ...R92 clockwise to close squelch Receiving Top panel Connect an SSG to the antenna connector and SINAD meter with an 8 load to the antenna connector 12 dB SINAD At the point where the audio signals just...

Страница 23: ...DIODE MA111 TX D21 1720000370 S VARICAP HVU350TRF D22 1720000370 S VARICAP HVU350TRF D24 1750000130 S DIODE DA204U T107 D25 1790000670 S DIODE SB07 03C TB D26 1160000060 S DIODE DAN202U T107 D27 1750...

Страница 24: ...03 V 10 k R210 7030003510 S RESISTOR ERJ3GEYJ 392 V 3 9 k R213 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k R214 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k MAIN UNIT MAIN UNIT R20 7030003660 S RESISTOR ERJ3...

Страница 25: ...CERAMIC C1608 JB 1H 102K T A C41 4030007080 S CERAMIC C1608 CH 1H 390J T A C42 4030006860 S CERAMIC C1608 JB 1H 102K T A C44 4030006860 S CERAMIC C1608 JB 1H 102K T A 4030008650 S CERAMIC C1608 JB 1H...

Страница 26: ...C1608 JB 1H 102K T A C202 4030006860 S CERAMIC C1608 JB 1H 102K T A C203 4030006860 S CERAMIC C1608 JB 1H 102K T A C204 4030006860 S CERAMIC C1608 JB 1H 102K T A C205 4030006860 S CERAMIC C1608 JB 1H...

Страница 27: ...ED LNJ808R8ERA MC1 7700002160 MICROPHONE KUC3523 040245 S1 2230000900 S SWITCH JPM1990 2013R SP1 2510000960 SPEAKER K036NA500 26 W1 7030003860 S JUMPER ERJ3GE JPW V W2 7030003860 S JUMPER ERJ3GE JPW V...

Страница 28: ...DIODE MA6S121 TX D24 1750000130 S DIODE DA204U T107 D25 1790000670 S DIODE SB07 03C TB D26 1160000060 S DIODE DAN202U T107 D27 1750000130 S DIODE DA204U T107 D33 1790001280 S DIODE MA111 TX F4 only D...

Страница 29: ...V 470 N 7030003370 S RESISTOR ERJ3GEYJ 271 V 270 W R107 7030003690 S RESISTOR ERJ3GEYJ 124 V 120 k N e 7030003700 S RESISTOR ERJ3GEYJ 154 V 150 k N u 7030003730 S RESISTOR ERJ3GEYJ 274 V 270 k W e 70...

Страница 30: ...SISTOR ERJ3GEYJ 103 V 10 k R436 7030003470 S RESISTOR ERJ3GEYJ 182 V 1 8 k R437 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 k R438 7030003740 S RESISTOR ERJ3GEYJ 334 V 330 k R439 7030003650 S RESISTOR ERJ...

Страница 31: ...RAMIC C1608 CH 1H 090D T A L 4030006980 S CERAMIC C1608 CH 1H 070D T A ML 4030011770 S CERAMIC C1608 CH 1H 060B T A MH H1 H2 C97 4030006980 S CERAMIC C1608 CH 1H 070D T A L 4030009920 S CERAMIC C1608...

Страница 32: ...S CERAMIC C1608 JB 1E 103K T A C243 4030006860 S CERAMIC C1608 JB 1H 102K T A C244 4030006900 S CERAMIC C1608 JB 1E 103K T A C245 4030006900 S CERAMIC C1608 JB 1E 103K T A C247 4030006860 S CERAMIC C1...

Страница 33: ...CERAMIC C1608 CH 1H 470J T A C473 4030007090 S CERAMIC C1608 CH 1H 470J T A C474 4030006900 S CERAMIC C1608 JB 1E 103K T A C475 4030009350 S CERAMIC C1608 CH 1H 3R5B T A L 4030009540 S CERAMIC C1608...

Страница 34: ...10010420 Knob N 261 1 MP6 8930042110 1922 10 key F4 1 8930043970 2065 7 key F4S 1 MP7 8930042070 1922 MIC cap 1 MP9 8930042030 1922 Main seal 1 MP10 8110006050 1922 OPT cover 1 MP11 8930042050 1922 DC...

Страница 35: ...RIPTION QTY NO NO EP2 EP1 MP1 MP2 MP2 C F3 F4 MP5 C MP7 C MP24 C MP11 C MP17 C MP3 M F3 S MP2 M F4 S MP6 C F3 F4 DS1 M MP4 M F3 S MP3 M F4 S IC F3S IC F4S parts EP2 M MP30 C MP21 C MP35 C F3 S MP38 C...

Страница 36: ...D S S 2SK2596BXTL BX G D S S DTA144EU 16 UN911H 6P B E C XP1213 9L XP1214 9H C1 C2 E B1 B2 XP4601 5C E E B C C B XP6401 5O E E B C C B XP6501 AB 5N B1 E1 C2 C1 B2 E2 1 3 6 4 2SK880 Y XY G S D 3SK166...

Страница 37: ...ayout in the same configuration as the actual P C Board BATT VOLIN VOLOUT GND VCC to MAIN UNIT J7 9 2 VR BOARD common TOP VIEW 9 1 SECTION 9 BOARD LAYOUTS 9 1 IC F3 S MAIN UNIT TOP VIEW VCC VOL GND VO...

Страница 38: ...OP BEEPOUT RXMUTE DISCIN AFOUT NC CCS CIRQ SO SI SCK to OPTIONAL UNIT J4 CHARGER CLONE SP AF OUT OPT MIC EXT MIC J2 EXT SP J3 PTT switch BATT VOLIN VOLOUT GND VCC to MAIN UNIT J7 R1 R1 BOTTOM VIEW The...

Страница 39: ...f this page and the next page shows the unit layout in the same configuration as the actual P C Board 9 3 9 3 IC F4 S MAIN UNIT TOP VIEW VCC VOL GND VOL OUT VOL IN HV to VR UNIT SP SPG P1 ANTENNA SPEA...

Страница 40: ...T3 GND NC NC NC GND 5 V VCC MICMUTE AFONOP BEEPOUT RXMUTE DET AFOUT NC CCS CIRQ SO SI SCK to OPTIONL UNIT J4 CHARGER CLONE SP AF OUT OPT MIC EXT MIC J2 EXT SP J3 PTT SWITCH Connect below parts that de...

Страница 41: ...VCC BATT GND POWER SWITCH BUFFER Q31 D27 5 V PRE ENPHA REG 5 CPU 5 REG R5 REG S5 REG T5 CPU 5 V Q33 Q35 Q36 RESET LPF CTCSS DTCS DTMF MTONE LPF BUFFER IC6 IC11 IC8 CPU X2 LCD KEY MATRIX EEPROM IC7 D...

Страница 42: ...NPHA REG 5 CPU 5 REG R5 REG S5 REG T5 CPU 5 V TUNE TUNE Q33 Q35 Q36 RESET LPF CTCSS DTCS DTMF MTONE LPF BUFFER IC6 IC11 Q23 IC8 CPU 5 8 MHz X2 LCD KEY MATRIX EEPROM IC7 D A IC10 SD NOIS D10 BPF RF AMP...

Страница 43: ...R245 100k R238 100k C276 47p C251 47p C252 47p C253 47p C262 47p C263 47p C257 47p C258 47p C259 47p C260 47p C261 47p C254 47p CONT 75 SEG 74 SEG 73 SEG 72 SEG 71 70 SEG SEG SEG SEG SEG SEG CTD CTD...

Страница 44: ...EG43 SEG44 SEG45 SEG46 SEG47 SEG48 SEG49 SEG50 SEG51 SEG52 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG...

Страница 45: ...p C2 C8 0 001 12p L 15p H C7 18p C5 20p C3 7p C1 S5 Q37 0 01 C179 3 9k R210 0 1 C73 100k R52 10k R53 0 001 C243 180k R54 330k R251 0 01 C75 R55 1k C291 0 001 2 3 1 4 11 NJM2902V IC3a L15 L22 20p L 18p...

Страница 46: ...92 50k R87 3 3k R88 120k C123 0 001 220p C121 100k R86 220p C122 0 1 C120 1 C119 W9 W10 E DET F 0 01 C118 390 R84 TA31136FN D IC2 1 2 3 4 5 6 7 8 16 15 13 14 12 11 10 9 OSCIN OSCOUT MIXOUT VCC IFIN DE...

Страница 47: ...220 R168 10k R192 56k Q33 XP4601 47k 47k R203 R202 R234 22k R231 180k R230 56k R229 22k R461 47k C227 R227 1 0 1 820p C228 1k 4 R226 R426 1k 4 R427 1k 2 R425 1k 4 SCK SI SO UNLK CL OUT CL IN PLST NOIS...

Страница 48: ...C PE3 SEG52 CL1 PE2 SEG51 CL2 PE1 SEG50 DO PE0 SEG49 M PD7 SEG48 PD6 SEG47 PD5 SEG46 PD4 SEG45 PD3 SEG44 PD2 SEG43 PD1 SEG42 PD0 SEG41 VCC PLST SCK SO UNLK VCC VCC T5 R5 S5 R5 S5 5p C53 C52 0 01 C51 1...

Страница 49: ...2 AF OUT R5C DS1 LM 1462B L8 27nH L 27nH ML MH 18nH H1 H2 L7 15nH L 12nH other Q9 L24 T5 0 82 H R160 150 1LO R83 330 L25 L403 1 5 H L13 1 H 0 82 H L3 Y655LY 04K L ML Y655LY 03K P3 MH Y655LY 02M H1 H2...

Страница 50: ...R166 BU4066BCFV IC4 1 2 3 4 5 6 7 14 13 12 11 10 9 8 I O I O I O O I O I O I O I I O CONT B CONT C VEE VDD CONT A CONT D 0 01 C131 VOL IN MM 5V 5V R42 1k 4 R41 56 L14 15nH C62 6p C61 6p C60 0 001 C59...

Страница 51: ...om france com Crta de Gracia a Manresa Km 14 750 08190 Sant Cugat del Valles Barcelona SPAIN Phone 93 589 46 82 Fax 93 589 04 46 E mail icom lleida com Corporate Headquarters 2380 116th Avenue N E Bel...

Страница 52: ...iC 2800h...

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