Home

IC-M401EURO Service Manual

1. RX 3 07 V SQL R158 100 NJM2125F AW C33 T 09 450 24 C226 I T 4 4 sg Erw 8 T T T MAR FES T5 100 R14 10 Rx 4 85 V C215 O213 Re 25i 12k 1485 227 0228 P 47 100 kZ IC2 UPD3140GS 9 0 001 470 P H Q27 ine VCCI 20 52 7 HH 25C4226 218 Rx 1 66 v PSTB ENB ik PETTE PCK jaran PE d C17 Ct6 20 w8 PDATA 100k 0 001 0 022 C228 125 C221 unix 28330 0 001 0 022 01 35272 56 banh gt C211 L L20 0207 C204 C203 AW C275 AP 4 R157 47P T 82nH 12 1P R21 Esto 1 22 A H C25 C24 29 C209 0 001 0 001 0 001 2390 CH 200020 20 02 15k ne 1 1 m 119 C202 C200 C198 D15 0197 13 12 C222 124 C216 C214 C253 C212 021 C208 117 B 82nH 56nH 33
2. to HM 132 to Logic unit J4 0069 5 gt ea CL JE 42 0 N GB EE iO SS E gg B sd poc CI 0001 lt a ES 6 B E pec E 7 Ej oo B paz BE III Pee ol 8 LINN Ezra B ezg LOI SN 582 18 iE HU U UU C SS WAY 985 pH e DJ E EH Eng 860 na 822 E
3. l lt lt gt z lt 132 to DSC terminal 05 100 SP SEND GND PDATA UNLK 39 1 to Main unit J6 2 9 5 e VIEW H gt VV1 011 8 L L as d 222227277727722222222 lt lt e ZA ZA C271 C80 8118381 63 S 5 CI O O pa Ez C83 9588 L12 1 3 ve ps ppp cr C76 C74 GR qis E TX PWR 0 1 m 95 T C106 m C1 86 US CG C92 RZ6 D1 5 l dob F a E gale R77 B 115 E Bum MOD 9006 8138 R 8139 S 8 REF 204 204 i C36 MP1 gt BE Ea MP6 8138
4. IC3 BU4094BCFV i IC9 WR q Sce i DTI VR A BOARD jH i 401014460 Ng FRONT UNIT Q4 DTC144EU 7 Ice Q26 DTC144EU c 4 614 DA204U 05 Q6 2504226 R25 25042150 024 25 1588 GR RL1 FTR P3CP012W1 5 80942 NMP DD6 1 1 025 DTC144EU IC8 TA7805F 018 189355 RESET D Leve LOOP 5 SEND E HVS Beim CONV PIE gt d 5 PWR i 107C KH NJM2902M i IC10B NJM4558M IC10A Q22 2541588 GR i gt NJM4558M 023 DTC144EU D11 DSA3A1 TTR5341 FERRON LPF Rov y HS EMI REVERSE HD6473847RH 85 KH FIL 4 SONEGT PIT 4 out PAN 08 25 1069 4 25 1069 4 2 IC11A 02 25 4116 BL IC12B i Q3 2SB1132 R LCD gt ATE 2581202 S TC4W66FU NJM4558M q J H Q4 2SC4116 BL CONT P n gt n AF gt MIC MUTE AMP EXTERNAL GPS pj F14 NFM60R20T152 215 NFM60R20T152 06 DTC114EU 9 DTC114EU 2 Q18 DTC144EU 5 s Q12 155355 D2 1SS355 GATE TC47HC14AF CTRL PHOTO COUPLE i 4 LINE 1 RX LINE
5. CP1 PLL lock voltage check point 5 3 TRANSMITTER ADJUSTMENTS ADJUSTMENT OUTPUT POWER ADJUSTMENT CONDITION Operating channel ch16 Output power High Transmitting MEASUREMENT UNIT LOCATION Connect an RF power meter to the antenna connector ADJUSTMENT POINT UNIT FREQUENCY DEVIATION Operating channel ch16 Output power Low Connect an audio generator to J4 pin 3 on the MAIN unit with an AC millivoltmeter and set as Frequency 1 kHz Level 20 mV Set an FM deviation meter as HPF LPF De emphasis Detector OFF 20 kHz OFF P P 2 Connect FM deviation meter to the antenna con nector through an attenuator Transmitting 5 4 RECEIVER ADJUSTMENTS ADJUSTMENT SENSITIVITY ADJUSTMENT CONDITION Operating channel ch16 SQUELCH control Max counterclockwise Connect an SSG to the antenna connector and set as Frequency 156 800 MHz Level 3 2 uV 97 1 kHz 3 5 kHz Modulation Deviation Receiving MEASUREMENT UNIT LOCATION Connect the distor tion meter to the EXT SP jack with a 4 Q load Less than 0 56 UV ADJUSTMENT POINT UNIT Operating channel ch16 SQUELCH control Max counterclockwise Connect an SSG to the antenna conne
6. F 2SB1132 R Symbol BAR SEMI CONDUCTOR INFORMATION 2SB1202 S Symbol B1202 25 2714 Symbol e DIODES 155355 Symbol m 155375 Symbol DA204 U Symbol K DSA3A1 HSM88ASR Symbol C3 2SC3268 Symbol ME 2SC3775 3 Symbol OY3 Li 25 4081 R Symbol BR 25 4116 BL Symbol LL 2564215 O Symbol 25 4226 825 Symbol R25 rn e 25 1069 4 Symbol FJ 35M272 Symbol DU DTA114 EU Symbol 16 J DTA144 Symbol 16 DTC114 EU Symbol 24 I DTC114 TU Symbol 04 DTC144 EU Symbol 26 HVU350B Symbol BO I lt 77 Symbol 48 u 728 Symbol CT MA8062 M Symbol 6 2 Tf F
7. 10 814 8135 Foo 0 001 632 SCN UP DN 16CH CH H L S25 15 56624 Ak b gt w b 526 16 2625 X 054 R6 DS5 DS6 R5 co COMO SML 311 YT SML 311 YT 820 SML 311 YT SML 311 YT 820 m c 19 COMZ 9 87 V BRIGHT 51 SEGO VCC 6 14 V MIDDLE 81 EC TON 4 voc N 4 12 V DARK FS 00 V LAMP OFF S4 24 5603 NMEAI S5 25 SEGA S6 26 5 PTT 6 52 ZEG KEYM SP to Internal Speaker Sa Boser R76 c2 8 SEG7 T So 31 SEG8 A 100 k 0 001 J J 0 001 512 32 Z ANN 887 100 k VCC 874 lol a 47k EN 75928 SEN z TMUT ZZROREEEBCO 90 R9 Q1 C8 t BU4094BCFV Sv 33k EXSTB 1 T 5 DAT144EU 10 EXSIB t H 4 gt gt T 2 DATA H tT ANN gt 14 RMUTM IK H3 REYS R78 RANI 100k 5 lt 5355452 X8 Q2 Q7 Hex AES 00 co COM I from to main unit J6 2 98 8 89295 292292929888814026885 4 04 QS Bx DZZ TZTTTTTTADLOC OOLK G RCV I QS E X 0_ C18 L c14 lt SgirOS9 000 0 01 F 001 igzgOOnoSsc SEND Je 22 109 2000005082 024 TMUT TMUT 2152 gt CONTI 1 TXDET 21 CENTS P10 TMOW P90 SEG33 75 SEG24 x ATIS mE 020 RMUTM SEEPI S P11 TMOFL 74 SEG23 Ei 19 TENGE P12 TMOFH 87 3 9
8. Tos 2SC4081 R n SS2995509es ss 922r SSp3 9286 498 NA WAS 0 01 395959995 R8 R88 10k 100k 4 x ZE 4 T L Z Q7 a CC m H HANG E 001 25 1576 ws L 599 z 888 5 868823986 gt C 1 GE 2122121221212 132 J1 I ES ri vf nf 2 f 1 C7 100 k C 222 GIGI 3 tomto En TC74HC14AF o Lo 07 5 terminal D2 L DIM3 ih T 0 01 DS 160k L c11 100 ICF3 188265 0 01 nm 89 aed Ah e um 2 50 V at NO ATIS Signal ATIS 06 RTXD DSENC7 Q8 DTC114EU R46 R85 DSENC6 25 1069 4 838 82k 33k C30 DSENCS gt D4 47k AM 001 DSENC4 MA8062 M 056863 s 011 DSENC2 220k 25 1069 4 R62 R66 R70 031 4 68 11 1 11 2 580mVp p at 3kHz DEV LOGIC BOARD J4 from to
9. B 5529 8 m E a gE 5 2 5 5 L D ICI B B Z 628 WoT PIRS 8 EH 3 8 g 5 820 8 u djed R 99 mj O ma 8 lt _ 60 614 819 RW ki L lt 5 525 x E 2 9 amp B 85 520 5012 Gg n 29 5 EN qu 5 6229 5 ong er 885 I grad T 5 5 pug 09 E ro E 5 9612 colh ea E 5 peed El 3 B 912 ma 15 E SECTION10 BLOCK DIAGRAM FRONT UNIT CFWS45QF i H TA31136FN i Q2 D10 XB15A308 F11 FL310 2SC2714 Y 027 2804226 R25 Y D15 XB15A308 EXTERNAL SPEAKER 612 FL310 354272 wk Ves k are W ls i Q11 H HM 1 32 28C37753 25 3268 X D9 HSM88ASR 10 5 4 TXDET 05 77 IC13 NJM2125F D6 MA77 g INTERNAL lt KAL SPEAKER 12 2581143 S 15 FMW1 X2 CR659 08 09 LOGIC BOARD 25042150 28642150 Q16 DTC144EU 2 PD3140GS rej MUTE TMUT PWR HI LO VR A BOARD i ciem fof K SEIS UNIT Q14 DTC144EU
10. 2251 FIE 150 995 Fa E 214 209 9 5 W6 Z CP1 I E c s g E 889885 5 067 5 dpi B gE 7 L 5 L 1995 194 192 C191 C35 R26 C37 658 CH 5 l 26 Ej E Ra Gss asl 179 T 28 8 dp E e I 658 RS 066 RD J6 6 657 Rad C62 850 3 E 8 P R5 BE m g E C65 128 C63 3 8 H a BBR gg RS 999506295 9061 38 2 Fi JHBEE u 899 898 2 MC 8 3 E CO FI mn 8 E BS B JU s 39 aac STE SQL 8101 Em pz Eu L 8 fare LL h R16 u J7 ajala odd 2290 0 0116 gt lal 6 1 to DSC terminal DS 100 GND GND HVS VOLI J5 Pla 2 2 562 5692 10 10 1 to VR A VR B boards W1
11. TX LINE 2 LINE DATA BUS LINE Q5 2SC4081 R Q7 2SA1576 R RIIFF OPTION SE M DSC terminal DSC 10 1 SECTION11 VOLTAGE DIAGRAM 11 1 LOGIC BOARD R20 18k Q3 W 2 SB1132 R 10k 821 2 815 R11 S14 SEG13 DS7 39k Q4 12k 27 2 R3 R4 515 FY1101 F TR DIM2 Q2 518 nig 2504116 8L 25 4116 BL RBS BAND EXTENTION uk 100 K 00 817 1 27 81 Sis LAM 886 Las Kd 519 EGT PY1101 F TR RT MM m 7 m m S21 iu SEG20 MM TAG Le 822 R19 C20 C21 823 Hi
12. 2 DO NOT open the transceiver until the transceiver is dis connected from its power source 3 DO NOT force any of the variable components Turn them slowly and smoothly 4 DO NOT short any circuits or electronic parts An insulat ed turning tool MUST be used for all adjustments 5 DO NOT keep power ON for a long time when the trans ceiver is defective 6 DO NOT transmit power into a signal generator or a Sweep generator 7 ALWAYS connect a 40 dB to 50 dB attenuator between the transceiver and a deviation meter or spectrum ana lyzer when using such test equipment 8 READ the instructions of test equipment thoroughly before connecting equipment to the transceiver SECTION SECTION SECTION SECTION SECTION SECTION SECTION SECTION SECTION SECTION SECTION 4 1 4 2 4 3 4 4 4 5 4 6 4 7 5 1 5 2 5 3 5 4 6 1 6 2 7 1 7 2 9 1 9 2 9 3 9 4 9 5 10 11 11 1 11 2 11 3 TABLE OF CONTENTS SPECIFICATIONS INSIDE VIEWS DISASSEMBLY INSTRUCTIONS CIRCUIT DESCRIPTION RECEIVER CIRCUITS TRANSMITTER CIRCUITS ai 4 2 4 3 ATIS AND DSC CIRCUITS etowych a Ta PAS 4 4 LOGIC CIRCUNS lt ac exer Dota Ene SERVIS TS 4 4 POWER SUPPLY CIRCUITS emu Emus pietra teer sie e t ada 4 4 PORTALEOCATIONS Ste n xni Fest
13. _ He XB15A308 Symbol T8 T SECTION9 BOARD LAYOUTS 9 1 VR A BOARD METRE 9 3 HM 132 e TOP VIEW 99229 5699 1 5 W1 R1 B 5585B 4 0 2 VRE BOARD to Main unit 5 E 2 9 1 qum WI H1 5586 3 4 9 4 LOGIC BOARD TOP VIEW 5679 to Front unit SP1 to Front unit SP1
14. 4 5 ADJUSTMENT PROCEDURES 5 1 PELADJUSTMENTS os eet sca sas teen IUe 5 2 TRANSMITTER ADJUSTMENTS 05 teg e RA 5 3 RECEIVER ADJUSTMENTS sor ates date UE RR ed 5 3 PARTS LIST itv paso pets sua wq ex VP Se ee cen Exe ges BA ates 6 1 E EE 6 5 MECHANICAL PARTS AND DISASSEMBLY 7 1 EN 7 3 SEMI CONDUCTOR INFORMATION BOARD LAYOUTS VRA BOARD 5 66 6 6 9 1 c aa 9 1 a EX ners Cork Reta 9 1 IC I 9 2 MAIN UNIT rx cob adi ani PE e 9 4 BLOCK DIAGRAM VOLTAGE DIAGRAM LOGIC BOARD EE 11 1 6 56 6 5 11 2 e 11 3 SECTION1 SPECIFICATIONS GENERAL Frequency coverage Mode Power supply requirement Usable temperature range Frequency stability Current drain at 13 8 V DC Antenna impedance Input impedance MIC Output impedance Audio Dimensions projections not included Weight TRANSMITTER Output power at 1
15. 4030006850 4030006850 4030006850 4030009500 4030006850 4030009920 4030007050 4030006850 4030006860 4030007020 4030007040 4030006900 4030007010 4030006860 4030006860 4030006860 4030007020 4030006860 4030009510 4030006860 4030007050 4030007040 4510007630 4030006860 4030007010 4510004600 4550007000 4030006850 4030006860 4030006900 4030007170 4030006860 4030006900 4030007050 4030006860 4030006860 4030006900 4030007050 4030006900 4030007050 4030006860 4030006850 4030006860 4030011180 4030006860 4030006860 4030011180 4030017200 4030011170 4030011070 4030011190 4030011060 4030011160 4030006860 4030007090 4030006850 4030006850 4030006860 4030007090 4030006860 4030006900 4030007090 4030011600 4030006900 4510005860 4030011600 4030008880 4030008880 4030011600 4510004630 4030006900 4510004630 4030006900 4030007130 S CERAMIC S TANTALUM S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC C1608 JB 1H 471K T A ECST1VY224R C1608 JB 1H 102K T A C1608 CH 1H 470J T A C1608 CH 1H 390J T A C1608 CH 1H 1R5B T A C1608 CH 1H 1R5B T A C1608 JB 1H 102K T A C1608 JB 1H 471K T A C1608 JB 1H 471K T A C1608 JB 1H 471K T A C1608 CH 1H OR5B T A C1608 JB
16. ERJSGEYJ 100 V 10 4030007040 S CERAMIC C1608 CH 1H 180J T A 7030003590 S RESISTOR _ ERJSGEYJ 183 V 18 4610001590 S TRIMMER TZC03R100A110 10 7030003550 S RESISTOR ERJSGEYJ 822 V 8 2 4030007020 S CERAMIC C1608 CH 1H 120J T A 7030003600 S RESISTOR ERJSGEYJ 223 V 22 kQ 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030001040 S RESISTOR MCR50JZHJ 18 180 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003560 S RESISTOR _ ERJSGEYJ 103 V 10 4030006900 S CERAMIC C1608 JB 1E 103 7030003480 S RESISTOR ERJSGEYJ 222 V 2 2 4550000510 S TANTALUM TESVA 1V 473M1 8L 7030003560 S RESISTOR _ ERJSGEYJ 103 V 10 4550006560 S TANTALUM ECST1CY225R 7030003440 S RESISTOR ERJSGEYJ 102 V 1 4510004630 S ELECTROLYTIC ECEV1CA100SR 7030003580 S RESISTOR _ ERJSGEYJ 153 V 15 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003450 S RESISTOR ERJSGEYJ 122 V 1 2 4030006900 S CERAMIC C1608 JB 1E 103 7030003600 S RESISTOR ERJSGEYJ 223 V 22 4030006850 S CERAMIC C1608 JB 1H 471K T A 7030003800 S RESISTOR ERJ3GEYJ 105 V 1 MO 4030011600 S CERAMIC C1608 JB 1C 104KT N 7030000100 S RESISTOR MCR10EZHJ 4 7 487 4030006860 S CERAMIC C1608 JB 1H 102K T A S Surface mount MAIN UNIT ORDER NO DESCRIPTION MAIN UNIT ORDER NO DESCRIPTION 4030006850 4550006130 4030006860 4030007090 4030007080 4030009540 4030009540 4030006860
17. Outputs main microphone HM 132 select signal to the analog swtich IC4 while intercom operation Outputs the T5 regulator MAIN unit 024 025 control signal High While transmitting Outputs the R5 regulator MAIN unit 022 023 control signal High While receiving SECTION 5 ADJUSTMENT PROCEDURES 5 1 PREPARATION M REQUIRED TEST EQUIPMENT EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGE DC power supply 13 8 V DC 10A or more Output voltage Current capacity Audio generator Frequency range Measuring range 300 3000 Hz 1 500 mV RF power meter terminated type 11 50 W 100 300 MHz 50 Q Less than 1 2 1 Measuring range Frequency range Impedance SWR Standard signal generator SSG Frequency range Output level 0 1 300 MHz 10 1 uV 32 mV 127 to 17 dBm Frequency counter FM deviation meter Frequency range 0 1 300 MHz Frequency accuracy 1 ppm or better Sensitivity 100 mV or better 30 300 MHz 010 10 kHz Frequency range Measuring range Oscilloscope Frequency range Measuring range DC 20 MHz 0 01 20 V millivoltmeter Measuring range 10 10 External speaker Input impedance Capacity 40 5 W or more DC voltmeter Digital multi meter 50 DC or better 10 DC or better Input impedance Input impedance Attenuator Power attenuatio
18. 102 V 1 7030003200 S RESISTOR _ ERJSGEYJ 100 V 10 0 7030003480 S RESISTOR ERJSGEYJ 222 V 2 2 7030003560 S RESISTOR ERJSGEYJ 103 V 10 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 7030003440 S RESISTOR ERJSGEYJ 102 V 1 7030003640 S RESISTOR ERJSGEYJ 473 V 47 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 7030003620 S RESISTOR ERJSGEYJ 333 V 33 7030003680 S RESISTOR ERJSGEYJ 104 V 100 m D O O D O O O O O O O O O O O 0 0 DIODE MA77 TX DIODE MA77 TX VARICAP HVU350B TRF VARICAP HVU350B TRF DIODE MA77 TX DIODE MA77 TX DIODE 1SS355 TE 17 DIODE HSM88ASR TR DIODE HSM88ASR TR ODE XB15A308 ODE DSA3A1 DIODE 155355 TE 17 DIODE DA204U T107 1710001080 DIODE XB15A308 o Q 9 o o o NNN N o S Surface mount MAIN UNIT MAIN UNIT ORDER ORDER NO DESCRIPTION DESCRIPTION 7030003600 S RESISTOR ERJ3GEYJ 223 V 22 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 7030003470 S RESISTOR ERJ3GEYJ 182 V 1 8 7030003280 S RESISTOR ERJ3GEYJ 470 V 47 0 7030003410 S RESISTOR ERJ3GEYJ 561 V 560 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 7030003550 S RESISTOR ERJSGEYJ 822 V 8 2 7030003440 S RESISTOR ERJSGEYJ 102 V 1 7030003550 S RESISTOR ERJ3GEYJ 822 V 8 2 7030003680 S RESISTOR ERJSGEYJ 104 V 100 7030003320 S RESISTOR ERJSGEYJ
19. 102 V 1 7030003440 S RESISTOR ERJSGEYJ 102 V 1 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 7030003440 S RESISTOR ERJSGEYJ 102 V 1 7030003440 S RESISTOR ERJSGEYJ 102 V 1 7030010460 S RESISTOR 8 330V 33 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 7030010460 S RESISTOR 8 330V 33 7030003560 S RESISTOR ERJSGEYJ 103 V 10 7030003640 S RESISTOR ERJS3GEYJ 473 V 47 7030003590 S RESISTOR ERJSGEYJ 183 V 18 7030003500 S RESISTOR ERJSGEYJ 332 V 3 3 7030004050 S RESISTOR ERJ3GEYJ V 1 O 7030003480 S RESISTOR ERJSGEYJ 222 V 2 2 7030003700 S RESISTOR ERJSGEYJ 154 V 150 7030003560 S RESISTOR ERJSGEYJ 103 V 10 7030003630 S RESISTOR ERJSGEYJ 393 V 39 7030003360 S RESISTOR ERJSGEYJ 221 V 220 7030003670 S RESISTOR ERJSGEYJ 823 V 82 7030003560 S RESISTOR ERJSGEYJ 103 V 10 7030003560 S RESISTOR ERJSGEYJ 103 V 10 7310002670 S TRIMMER RV 143 52 471 7030003660 S RESISTOR ERJ3GEYJ 683 V 68 7030003550 S RESISTOR ERJ3GEYJ 822 V 8 2 7510001050 S THERMISTOR 1608 4LH 333KC T 7030003680 S RESISTOR ERJSGEYJ 104 V 100 7030003570 S RESISTOR ERJSGEYJ 123 V 12 7030000280 S RESISTOR MCR10EZHJ 150 151 7030003490 S RESISTOR ERJ3GEYJ 272 V 2 7 7030000280 S RESISTOR MCR1
20. 1H 471K T A C1608 CH 1H 050B T A C1608 CH 1H 220J T A C1608 JB 1H 471K T A C1608 JB 1H 102K T A C1608 CH 1H 120J T A C1608 CH 1H 180J T A C1608 JB 1E 103K T A C1608 CH 1H 100D T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 CH 1H 120J T A C1608 JB 1H 102K T A C1608 CH 1H 010B T A C1608 JB 1H 102K T A C1608 CH 1H 220J T A C1608 CH 1H 180J T A ELECTROLYTIC 35 MV 47 CA S CERAMIC S CERAMIC C1608 JB 1H 102K T A C1608 CH 1H 100D T A ELECTROLYTIC 16 MV 1000 HC S TANTALUM S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC ECST1VY105R C1608 JB 1H 471K T A C1608 JB 1H 102K T A C1608 JB 1E 103K T A C1608 CH 1H 221J T A C1608 JB 1H 102K T A C1608 JB 1E 103K T A C1608 CH 1H 220J T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1E 103K T A C1608 CH 1H 220J T A C1608 JB 1E 103K T A C1608 CH 1H 220J T A C1608 JB 1H 102K T A C1608 JB 1H 471K T A C1608 JB 1H 102K T A GRMA2 6 CH 220J 500PT C1608 JB 1H 102K T A C1608 JB 1H 102K T A GRM42 6 220J 500PT GHM1030 R 102K 630PT GRM42 6 180J 500PT GRM42 6 CH 050 500PT GRMA2 6 270J
21. 8V 84 33k ANN to LOGIC board J3 Icom Inc 1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan Phone 06 6793 5302 Fax 06 6793 0013 URL http www icom co jp world index html Icom America Inc Corporate Headquarters 2380 116th Avenue N E Bellevue WA 98004 U S A Phone 425 454 8155 Fax 425 454 1509 URL http www icomamerica com lt Customer Service gt Phone 425 454 7619 Icom Canada Glenwood Centre 150 6165 Highway 17 Delta B C V4K 5B8 Canada Phone 604 952 4266 Fax 604 952 0090 URL http www icomcanada com Icom Australia Pty Ltd A B N 88 006 092 575 290 294 Albert Street Brunswick Victoria 3056 Australia Phone 03 9387 0666 Fax 03 9387 0022 URL http www icom net au Icom New Zealand 146A Harris Road East Tamaki Auckland New Zealand Phone 09 274 4062 Fax 09 274 4708 URL http www icom co nz Icom Europe GmbH Communication Equipment Himmelgeister Str 100 D 40225 D sseldorf Germany 0211 346047 0211 333639 URL http www icomeurope com Icom Spain S L Crta de Gracia a Manresa Km 14 750 08190 Sant Cugat del Valles Barcelona SPAIN Phone 93 590 26 70 Fax 93 589 04 46 URL http www icomspain com Icom UK Ltd Unit 9 Sea St Herne Bay Kent CT6 8LD U K Phone 01227 741741 Fax 01227 741742 URL http www icomuk co uk Icom France S a Zac de la Plaine Rue
22. CH 1H 470J T A 4030007090 S CERAMIC C1608 CH 1H 470J T A 4030006860 S CERAMIC C1608 JB 1H 102K T A 4030007040 S CERAMIC C1608 CH 1H 180J T A 4030007040 S CERAMIC C1608 CH 1H 180J T A 4030007080 S CERAMIC C1608 CH 1H 390J T A 4030007040 S CERAMIC C1608 CH 1H 180J T A 4550006700 S TANTALUM ECST1AY106R 4030006860 S CERAMIC C1608 JB 1H 102K T A 4030011600 S CERAMIC C1608 JB 1C 104KT N 4030006860 S CERAMIC C1608 JB 1H 102K T A 4030007090 S CERAMIC C1608 CH 1H 470J T A 4030011600 S CERAMIC C1608 JB 1C 104KT N 4030011060 S CERAMIC GRM42 6 CH 040C 500PT 4030007090 S CERAMIC C1608 CH 1H 470J T A 4030006880 S CERAMIC C1608 JB 1H 472K T A 4030007010 S CERAMIC C1608 CH 1H 100D T A 4030007170 S CERAMIC C1608 CH 1H 221J T A 4030007010 S CERAMIC C1608 CH 1H 100D T A 4030007170 S CERAMIC C1608 CH 1H 221J T A 4030007010 S CERAMIC C1608 CH 1H 100D T A 4030007170 S CERAMIC C1608 CH 1H 221J T A 4030007010 S CERAMIC C1608 CH 1H 100D T A 4030007170 S CERAMIC C1608 CH 1H 221J T A 4030007010 S CERAMIC C1608 CH 1H 100D T A 4030007170 S CERAMIC C1608 CH 1H 221J T A 4030006850 S CERAMIC C1608 JB 1H 471K T A 4030007170 S CERAMIC C1608 CH 1H 221J T A 4030009510 S CERAMIC C1608 CH 1H 010B T A 4030007120 S CERAMIC C1608 CH 1H 820J T A 4030007120 S CERAMIC C1608 CH 1H 820J T A 4030006860 S CERAMIC C1608 JB 1H 102K T A 4030011600 S CERAMIC C1608 JB 1C 104KT N 4030017200 S CERAMIC GHM1030 R 102K 630PT 7010006890 RESISTOR R20J 12 7
23. S COI ELJRE R10J F3 6200009180 S COI ELJRE R10J F3 6200009180 S COI ELJRE R10J F3 6200002430 S COI NL 252018T 082J MAIN UNIT 6200002430 S COIL NL 252018T 082J 6170000230 COIL LW 25 6110001600 COIL LA 243 6110001600 COIL LA 243 6110001600 COIL 243 6110001600 243 6200007760 S COIL LQN21A 82NJ04 6200007760 S COIL LQN21A 82NJ04 6200007760 5 LQN21A 82NJ04 6200007760 5 LQN21A 82NJ04 6200007760 S COI LQN21A 82NJ04 6200007760 S COI LQN21A 82NJ04 6200007760 S COI LQN21A 82NJ04 6200007760 S COI LQN21A 82NJ04 6200004720 S COI MLF1608D R10K T 6200003550 S COI MLF1608A 4R7K T 6200007000 S COI ELJRE 82NG F 6200005740 S COIL ELJRE 47NG F 6200007740 S COIL LQN21A 47NJ04 6200007740 S COIL LQN21A 47NJ04 6110001600 COIL LA 243 ORDER 1110003200 1136 EL 1130007610 uPD3140GS E1 058 1150001540 IC M57710 A SC 1302 1180001070 S IC TA7805F TE16L 1110003090 IC LA4425A 1110000960 S IC NJM4558M T1 1110000960 S IC NJM4558M T1 1130007300 S IC TC4W66FU TE12L 1120002830 S IC NJM2125F TE1 1580000660 S FET 3SK272 TX TRANSISTOR 2SC2714 Y TE85R TRANSISTOR 2SC4116 BL TE85R TRANSISTOR DTC144EUA T106 TRANSISTOR 25 4226 2 R25 TRANSISTOR 2 4226 2 R25 TRANSISTOR 25 4215 TE85R TRANSISTOR 25 4215 TE85R TRANSISTOR 25 4215 TE85R TRANSISTOR 25 3775 3 TRANSISTOR 2 3268 TE12L TRANSISTOR 2SB1202S TL TRANSISTOR DTC144EUA T106 TRA
24. clock signal for the EEPROM IC2 pin 6 I O port for the EEPROM data signals Output port for RF output power High or Low select signal Input port for the cloning data Output port for cloning data Outputs bandpass filter select signals Low Receiving more than 160 MHz High Receiving less than 160 MHz Outputs transmit mute signal High While transmitting Input port for DS 100 data Outputs cloning data signal Input port for the squelch volume level Input port from the FM IF IC MAIN unit IC1 for the squelch operation Input port for the connected power supply voltage detection low battery indicator Input port for TX LED control signal Description Input port for the HM 132 functions 2 02 V UP is pushed 3 00 V DN is pushed 3 84 V 16 C is pushed Input port for the PTT switch from HM 132 Low While PTT is pushed Input port for the TAG switch Low While TAG switch is pushed Input port for the SCN switch Low While SCN switch is pushed Input port for the UP switch Low While UP switch is pushed Input port for the DOWN switch Low While DOWN switch is pushed Input port for the PLL unlock signal Low While PLL is locked 4 7 2 EXPANDER IC LOGIC BOARD IC3 Pin number Description Outputs the AF mute swtich MAIN unit IC5 control signal for main body Low While squelched
25. driver signal to an output power level IC3 is a power module which has amplification output capa bilities of about 35 W with 300 mW input The output from IC3 pin 4 is passed through the antenna switching circuit D10 and is then applied to the antenna connector via the low pass filter 4 2 5 APC CIRCUIT MAIN UNIT The APC circuit stabilizes transmit output power The RF output signal from the power amplifier IC3 is detected at the power detector circuit D8 D9 L12 and is then applied to one of the differential amplifier inputs Q15 pin 5 via the High Low control circuit R71 Q16 The applied voltage controls the differential amplifier output Q15 pin 2 and the bias voltage control Q12 Thus the APC circuit maintains a constant output power de emphasis circuit AF MUTE External SP Vcc Q a PWR VR A board AMP TES i 1 EU Internal SP LOGIC board 4 3 PLL CIRCUITS 4 3 1 GENERAL The circuit provides stable oscillation of the transmit fre quency and receive 1st LO frequency The PLL circuit 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 the divided ratio of the programmable divider IC2 on the MAIN unit is a dual PLL IC which controls both VCO circuits for Tx and Rx and contains a prescaler pro grammable counter programmable divider phase
26. to the 1st mixer circuit Q1 through a low pass filter and the trans mit signal is applied to the pre drive amplifier Q10 A por tion of the VCO output is reapplied to the PLL IC IC2 pin 2 via the buffer amplifier Q8 IC3 L12 to antenna RF detector circuit Vu OTS signal to CPU TMUT signal from the CPU LOGIC board pin 92 LOGIC board pin 83 55 PLL CIRCUIT R69 HI LO Prescaler lt Buffer D6 f gt to transmitter circuit gt gt AS VO Buffer to 1st mixer circuit 2 05 04 06 D1 D4 Buffer Loop IC2 PLL IC filter 8 Phase Programmable 2 detector counter 21 25 MHz signal to the 3 Ta pin 2 17 Programmable Shift register AE POK divider 1 5 __ x2 16 1 21 25 MHz Ed 4 4 ATIS DSC CIRCUITS 4 4 1 ATIS ENCODE CIRCUIT HOL FRG ONLY LOGIC BOARD AND MAIN UNIT The FSK signal of ATIS created at CPU IC1 is passed through the ladder type D A convertor R55 R73 to convert into the analog signal The analog signal is applied to the buffer amplifier Q8 and then applied to the mixer circuit MAIN unit IC10A pin 2 to mix with signals from the micro phone The signal passes through the low pass filter MAIN u
27. 0014080 8930056400 8810008630 8950000180 2438 Chassis 1 2490 IC clip 2438 Case 2438 Case A 2438 R PACKING 2040 F PACKING 1542 ANT SEAL 2438 B Bush plate 2438 MB nut 1 2040 MODULE cover 2438 SHEET O ring AJ O ring AD Screw PH M3x8 NI Screw PH 80 M3x8 NI ZU Screw PH 80 M3x8 NI ZU Screw BiH M3x6 SUS 2438 Screw 2438 cap Insulating plate 59TN4772 2490 earth plate 2490 B Shield cover 2490 A Shield cover Shield sponge H Screw PH BO M3x6 NI ZU Cable tie 80 BLACK WHITE FRONT UNIT ORDER NO DESCRIPTION 0800006230 0800006240 Microphone HM 132B ACC Microphone HM 132W ACC BLACK WHITE 2510001111 Speaker 045P1601A 8900010500 Cable OPC 1046 8210018110 8210018120 8930055600 8310050810 8610011030 8610011040 8930014280 8810008660 8830001580 8110007580 8110007610 8930052280 8310051220 8610009240 8930055840 2438 Front panel B 2438 Front panel C 2438 Key board A 2438 Window plate Knob N 286 Knob N 286 A SP net Screw PH BO M3x8 NI ZU BT Sonicrock SL M3 5 8 2490 E cover 2490 E cover A O ring AC 2438 C Bush plate Knob spring NO 7800P 2490 earth spring AO BO BT Self tapping PH Pan head NI Nickel SUS Stainless NI ZU Nickel Zinc BiH Bind head BLACK WHITE BLACK WHITE BLACK WHITE Screw abbreviations A A WPP m m LOGIC BOARD ORDER
28. 010006880 RESISTOR R20J 6 8 7010006900 RESISTOR R20J 15 7010006910 RESISTOR R20J 33 4010008030 CERAMIC DD104 B 471K 50V 7700002500 MICROPHONE 523 040245 lt KN gt 2260002330 SWITCH SKHHLP014A 2260002340 SWITCH SKHHAM024A 2260002340 SWITCH SKHHAMO024A 2260002340 SWITCH SKHHAM024A 0910053701 PCB 5587 6330001670 RELAY FTR P3CP012W1 6510018970 S CONNECTOR B4B PH SM3 TB 6510019420 S CONNECTOR B8B ZR SM3 TF 6510022470 S CONNECTOR 40FLT SM1 TB 6510015540 S CONNECTOR B4B ZR SM3 TF 5920000570 TRANSFORMER 12T01 7120000470 JUMPER ERDS2TO 7030003860 S JUMPER ERJSGE JPW V 7030003860 S JUMPER ERJSGE JPW V 0910054092 PCB B 5678B FRONT UNIT DESCRIPTION 0800006230 MICROPHONE 132 lt KN gt BLACK 0800006240 MICROPHONE HM 132W ACC lt gt WHITE 2510001110 SPEAKER 045P1601 lt KS gt 7120000470 JUMPER ERDS2T0 7120000470 JUMPER ERDS2T0 8900010500 CABLE OPC 1046 S Surface mount SECTION 7 7 1 IC M401EURO CHASSIS PARTS ORDER NO DESCRIPTION 6510004880 Connector MR DSE 01 8900010710 8900010490 Cable OPC 1087 Cable OPC 1041 8010018471 8930056120 8510013700 8510013850 8930054660 8930045280 8930034300 8930054620 8830001531 8510011870 8930055070 8930053740 8930052290 8810008680 8810008660 8810008660 8810002950 8820001210 8930055040 8930049040 6910008240 8930055850 8510014070 851
29. 06900 4030006900 4030006900 4030006860 4510004630 4030006900 4030007060 4030006900 4030006900 4030009650 4030006900 4030006900 4030006860 6510021440 6510022190 6510022470 5030001950 5040002310 5040002310 5040002310 5040002310 5040002660 5040002660 0910054101 8930054970 S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ C1608 JB 1H 102K T A C1608 JB 1H 102 C1608 JB 1H 102K T A C1608 JB 1H 471K T A C1608 JB 1H 102K T A C1608 JB 1H 471K T A C1608 JB 1E 103K T A S ELECTROLYTIC ECEV1CA100SR S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC C1608 JB 1H 472K T A C1608 JB 1C 273K T A C1608 JB 1E 103K T A C1608 JB 1E 103K T A C1608 JB 1E 103K T A C1608 JB 1E 103K T A C1608 JB 1E 103K T A C1608 JB 1E 103K T A C1608 JB 1H 102K T A S ELECTROLYTIC ECEV1
30. 0EZHJ 150 151 7030003570 S RESISTOR ERJ3GEYJ 123 V 12 7030003480 S RESISTOR ERJ3GEYJ 222 V 2 2 7030001090 S RESISTOR MCR50JZHJ 47 Q 470 7030003480 S RESISTOR ERJ3GEYJ 222 V 2 2 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 4030008880 S CERAMIC C1608 JB 1C 223K T A 7030003490 S RESISTOR ERJSGEYJ 272 V 2 7 4030006860 S CERAMIC C1608 JB 1H 102 7030003680 S RESISTOR 104 V 100 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003800 S RESISTOR ERJ3GEYJ 105 V 1 MQ 4030007110 S CERAMIC C1608 CH 1H 680J T A 7030003800 S RESISTOR ERJ3GEYJ 105 V 1 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003800 S RESISTOR 105 V 1 4030007010 S CERAMIC C1608 CH 1H 100D T A 7030003490 S RESISTOR ERJ3GEYJ 272 V 2 7 4030007030 S CERAMIC C1608 CH 1H 150J T A 7030003390 S RESISTOR 391 V 390 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003760 S RESISTOR ERJ3GEYJ 474 V 470 4030006900 S CERAMIC C1608 JB 1E 103K T A 7030003700 S RESISTOR ERJ3GEYJ 154 V 150 4030011770 S CERAMIC C1608 CH 1H 0608 7030003580 S RESISTOR ERJ3GEYJ 153 V 15 4030008880 S CERAMIC C1608 JB 1C 223K T A 7030003580 S RESISTOR ERJ3GEYJ 153 V 15 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003440 S RESISTOR ERJSGEYJ 102 V 1 4030006900 S CERAMIC C1608 JB 1E 103 7030003
31. 101 V 100 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 7030003390 S RESISTOR 391 V 390 7030003750 S RESISTOR ERJSGEYJ 394 V 390 7030003350 S RESISTOR 181 V 180 7030003580 S RESISTOR ERJSGEYJ 153 V 15 7030003420 S RESISTOR ERJ3GEYJ 681 V 680 7030003480 S RESISTOR ERJSGEYJ 222 V 2 2 7030003660 S RESISTOR ERJSGEYJ 683 V 68 7030003600 S RESISTOR ERJ3GEYJ 223 V 22 7030003400 S RESISTOR ERJSGEYJ 471 V 470 Q 7030003620 S RESISTOR ERJSGEYJ 333 V 33 7030003660 S RESISTOR ERJSGEYJ 683 V 68 7030003410 S RESISTOR ERJ3GEYJ 561 V 560 7030003320 S RESISTOR ERJSGEYJ 101 V 100 7030003680 S RESISTOR ERJSGEYJ 104 V 100 7030003610 S RESISTOR ERJSGEYJ 273 V 27 7030003560 S RESISTOR ERJSGEYJ 103 V 10 7030003440 S RESISTOR ERJSGEYJ 102 V 1 7030003440 S RESISTOR ERJSGEYJ 102 V 1 7030003480 S RESISTOR ERJSGEYJ 222 V 2 2 7030003440 S RESISTOR ERJSGEYJ 102 V 1 7030003520 S RESISTOR ERJSGEYJ 472 V 4 7 7030003320 S RESISTOR ERJSGEYJ 101 V 100 7030003520 S RESISTOR ERJSGEYJ 472 V 4 7 7030003560 S RESISTOR ERJSGEYJ 103 V 10 7030003320 S RESISTOR ERJSGEYJ 101 V 100 7030003560 S RESISTOR ERJSGEYJ 103 V 10 7030003200 S RESISTOR ERJSGEYJ 100 V 10 7030003320 S RESISTOR ERJSGEYJ 101 V 100 0 7030003440 S RESISTOR ERJSGEYJ
32. 144EU PTT n 82k 10 L L M i BPEV SP 1 i PTM C118 L C293 470P T 470 RMUTM que R80 d T VBIAS 100 XV I I RE en Weit em C237 d 2 R1941 k R196 1k LI 1 029 3 24 C168 C235 R122 16BL 5 L 1 SAN Jow 150k TU IC11B 100 29 4116 T PTT Jte R143 R141 Ci69 R134 NJM4558M 10444 L 4 DS T 8193 8195 22k 18k 10 0 01 39k 6 AB 6165 IC10A 5 NJM4558M nr 1k 1k AM 7 NJM4558M g 7 8 3 6189 2120 277 2k 4 001 BK PH zn 2 wl lt 103 k 4 R138 IC10B Rigg 6152 8201 TI RV 110 NJM4558M 82k 150k 10k gt CP2 4 n 8136 a I i 12k C166 Ld C276 C246 56 8203 8207 0 1 T T 0 0027 18k 18k 77 77 77 77 C196 261 C264 C262 C297 0 01 0 001 47 47 82 n T T RX 0 00 V 178 RX 494V 1 TX 0 00 V TX 4 94 V 3 C195 0255 C265 6001 0001 476 IC8 TA7805F Q2228A1588 GR 2 1 Q242SA1588 GR V 1 C182 8152 6 42 178 C179 mer L 180 0 01 1M 7 0 01 04 1 I 8 G 10 gt I R148 Q26 m 2 1k DTC144EU C171 C172 C173 gt 100 0 01 0 1 L A 025 DTC144EU DTC114EU 11 2 11 3 132 UP DN 16 9 MC1 wa PTT wi MIC 5 5 to MAIN unit J4 UPON 20V DN ON 3 0V 16 9 ON 3
33. 156 225 156 225 157 225 157 225 156 800 156 800 156 275 160 875 157 275 161 875 156 850 156 850 156 275 156 275 157 275 157 275 156 900 161 500 156 325 160 925 157 325 161 925 156 900 156 900 156 325 156 325 157 325 157 325 156 950 161 550 156 375 156 375 157 375 161 975 156 950 156 950 156 425 156 425 157 375 157 375 157 000 161 600 156 475 156 475 157 425 162 025 157 000 157 000 156 525 156 525 157 425 157 425 157 050 161 650 156 575 156 575 157 050 157 050 Low power only Receive only NOTE USA channels for U K and ltaly versions only 156 625 156 625 SECTION2 INSIDE VIEWS MAIN UNIT AF power amplifier Pre driver IC9 LA4425A Q10 2503775 3 Reference oscillator X2 CR 659 YGR amplifier Antenna switching circuit Q11 2503268 VCO circuit 1st mixer 01 35 272 FM IF IC IC1 TA31136FN 2nd F filter 813 CFWS45QF PLL IC 1st IF filter IC2 uPD3140GS 1 2 FL 310 e FRONT UNIT Reset IC IC6 S 80942A NMP DD6 EEPROM IC2 58 2432 VR A board MAIN MPU IC1 HD6473847RH VR B board LOGIC board System clock X1 691 SECTION3 DISASSEMBLY INSTRUCTIONS e REMOVING THE CASE e REMOV
34. 3 8 V DC Modulation Maximum frequency deviation Frequency stability Spurious emissions Residual modulation Audio harmonic distortion Audio frequency response H RECEIVER Receive system Intermediate frequencies Sensitivity Squelch sensitivity Adjacent channel selectivity Spurious response Intermodulation rejection ratio Hum and noise Audio frequency responce 156 025 157 425 MHz Tx 156 300 162 025 MHz Rx 16K0G3E FM 13 8 V DC negative ground 20 to 60 C 4 F to 140 F 10 ppm 20 to 60 C 4 F to 140 F Transmit at 25 W 6 0 A approx Receive max audio 1 2 A approx 50 Q nominal 600 Q 40 153 W x67 H x140 D mm 6 W x25 H x534 D in 900 g 2 Ib High 25 W Low 1 W Variable reactance frequency modulation 5 0 kHz Less than 0 25 uW 70 dBc 40 dB Less than 10 at 60 deviation 1 dB to 3 dB of 6 dB octave from 300 Hz to 3000 Hz Double conversion superheterodyne system dst 21 7 MHz 2nd 450 kHz Less than 2 dBu emf typical at 20 dB SINAD With CCITT Less than 0 dBu emf typical More than 70 dB More than 70 dB More than 68 dB More than 40 dB 1 dB to 3 dB of 6 dB octave from 300 Hz to 3000 Hz Specifications are measured in accordance with EN301 025 1 2 3 stated specifications are subject to change without notice or obligatio
35. 32 78 L 56622 HILO HILO 9 19 8 5 P85 SEG30 72 SEG21 SQLV SQL GH P14 IRQ4 ADTRG 71 5 20 Y 3 8 Vp p HL P15 IRQ1 TMIC 84 5 029 70 56019 Pt HAN 24 P16 IRQ2 83 5 028 69 56618 PTT PTT P17 IRQ3 TMIF P82 SEG27 68 27 P 3 XI P81 SEG26 En 6 B 0 5 25 m xi R7 66 5 5 S 80942 ANMP DD6 10k Pas eR e91 1M vss IC1 presegos C RMUTM RMUT 3 R34 5 j T 9502 HD6473847 P75 SEG22 64 SEG13 470 CD OUT n 14 9501 P74 SEG21 63 5602 57 6 4 vop 4 28 24 RES P73 SEG20 62 SQL SQL AW VSS PCK 16 P72 SEG19 SEQ8 2 PSTB ira P71 SEG18 50 SEG UNLK UNLK 5 C10 PDATA 18 P22 SO1 P70 SEG17 SEG10 PDATA PDATA ES 0 027 EXSTB 191 p55 P67 SEG16 25 SEG9 PSTB FEAT C9 nt x2 P24 P66 SEG15 mE PCK 0 0047 BPLVL 1 pos P65 SEG14 29 SEGS 4 39k K 221 p26 P64 SEG13 EDA 23 poy P63 SEG12 pet SEG3 cs HN BIET 24 P30 PWM P62 SEG11 55 shoe 0 001 4 0 001 KDE M 58 2432 BRUD P61 SEG10 EE C6 ca 1 8 Lo P60 sEGo 2 0 voc 470 P 470 P WP R80 10k TO st LO m 0 00 V 68 SCL 5 AM 1 VSS SDA M 00000000 R81 10k OSIBI TILASSA NF DON X2CC gt gt gt gt 2 gt 2 00000000 4 5V H cs 05 92606 422225111121 lt lt
36. 3590 7030003380 7030003400 7030003540 7030003520 7030003640 7030003630 7030003630 7030003550 7030003560 7030003580 7030003460 7030003560 7030003560 7030003560 7030003560 7030003560 7030003560 7030003560 7030003560 7030003560 7030003560 S IC S IC S IC S IC S IC S IC S TRANSISTOR S TRANSISTOR S TRANSISTOR S TRANSISTOR S TRANSISTOR S TRANSISTOR S TRANSISTOR S FET S TRANSISTOR S FET S DIODE S DIODE S ZENER S ZENER S ZENER S ZENER S XTAL S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR HD6473847RH HN58X2432TI BU4094BCFV E2 TC74HC14AF S 80942ANMP DD6 T2 PC357N6T DTA144EUA T106 2SC4116 BL TE85R 2SB1132 T100 R 2SC4116 BL TE85R 2SC4081 T107 R DTC114EUA T106 2SA1576A T106R 2SK1069 4 TL DTA114EUA T106 2SK1069 4 TL 1SS355 TE 17 1SS355 TE 17 MA8062 M TX MA8062 M TX MA8062 M TX MA8062 M TX CR 691 9 8304 MHz ERJSGEY J 104 V 100 100 100 100 ERJSGEYJ 104 V ERJSGEYJ 104 V ERJSGEYJ 104 V ERJSGEYJ
37. 500PT GRMA2 6 CH 040C 500PT GRMA2 6 CH 150J 500PT C1608 JB 1H 102K T A C1608 CH 1H 470J T A C1608 JB 1H 471K T A C1608 JB 1H 471K T A C1608 JB 1H 102K T A C1608 CH 1H 470J T A C1608 JB 1H 102K T A C1608 JB 1E 103K T A C1608 CH 1H 470J T A C1608 JB 1C 104KT N C1608 JB 1E 103K T A S ELECTROLYTIC ECEV1HA2R2SR S CERAMIC S CERAMIC S CERAMIC S CERAMIC C1608 JB 1C 104KT N C1608 JB 1C 223K T A C1608 JB 1C 223K T A C1608 JB 1C 104KT N S ELECTROLYTIC ECEV1CA100SR S CERAMIC C1608 JB 1E 103K T A S ELECTROLYTIC ECEV1CA100SR S CERAMIC S CERAMIC C1608 JB 1E 103K T A C1608 CH 1H 101J T A 4030011600 4030009490 4030006880 4030007100 4030006860 4030006900 4510004630 4510006220 4030006900 4030011600 4030011600 4030006900 4510004630 4030011600 4030006900 4030011600 4030006900 4510005860 4030006900 4030011600 4030006860 4510004590 4510007480 4030011600 4030007090 4030006860 4030006860 4030007050 4030007050 4030006860 4030006900 4030006860 4030006900 4030011190 4030011180 4030007090 4030009920 4030007020 4030007070 4030007020 4030009510 4030009520 4030007020 4030007070 4030007020 4030009920 4030007090 4030006900 4030007090 4030009920 4030007020 4030007070 4030007030 4030009510 4030009520 4030007020 4030007070 4030007020 4030009920 4030007020 4030006850 4030006860 4030006850 4030006860 4030007100 4030011600 4030011600 4030011600 4030007090 4030006860 4030008470 4030006860 403000
38. 60 0 001 id I L 874 loco BESSY R37 33 k HVU350 HVU350 3 97 V MP1 R62 0001 0 01 C189 L Loi Q6 852 1k 015 8 100k 2 09 TX_L 3 24 V J6 0 001 T 82 25C4226 825 28 Ges 27k i AM FMW1 5 r 1 053 0 89 V 12P 3 Q14 870 DTC144EU 39 P 25 4215 0 4 DTC144EU co R68 10k 4 L 097 I 66 R69 lt R b SP SP 55 1I 5 33 0 01 10k 220 R73 O 22P o srs 1 C46 C272 156 6 7 470 P 10 we Q9 WIE 82k 45 3 L SP 0 001 470 P 25 42150 E BEEPM cm 429 l l VBIAS 7 b BPLVL BPLV MEA M yes ___ DSC 7 LI 5V AM 2 47 V gt VOLI 1 1 Nou GND vee L C191 R91 C128 2182 3 67 V caret 6279 CS 22P 0141 C137 R87 z R95 555 1 0 1 27k Oke PI 0 1 3450 129 5V C7520753 10 Ras 04 100k E MMC T 13 P Rev 22 P 0 001 RCV RL1 13 8 V 470k gt gt 1 8 SQL OPEN 4 95 V 1 C289 1 C290 d DET DET SQL CLOSE 0 00 V 10P 220P 004898 UNIT SEND 2 17 IZA DSA3A1 i R101 5 T HV i TMUT ma t 3 8169 9 CE L 1 TXDET 021 112 i 8 oor took LL T GND we i i 98 8 C139 25 4116 4 66 UT TX 0 05 V C127 C126 m C116 C115 T at 1 i MR zas 155355 RX 4 21 V 47 01 47 0001 2 4 E 0 022 220 P 10 P i 1 3 i San MX RX 497 018 T Spi rin se H PTT R139 R140 19 0 27 V TX 0 00V DTC
39. 680 S RESISTOR ERJ3GEYJ 104 V 100 4030011810 S CERAMIC C1608 JB 1A 224K T N 7030003480 S RESISTOR ERJSGEYJ 222 V 2 2 4030007130 S CERAMIC C1608 CH 1H 101J T A 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 4030006900 S CERAMIC C1608 JB 1E 103 7030003700 S RESISTOR ERJSGEYJ 154 V 150 4510004630 S ELECTROLYTIC ECEV1CA100SR 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 4030011810 S CERAMIC C1608 JB 1 224K T N 7030003530 S RESISTOR ERJ3GEYJ 562 V 5 6 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003750 S RESISTOR ERJSGEYJ 394 V 390 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003700 S RESISTOR ERJSGEYJ 154 V 150 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003670 S RESISTOR ERJSGEYJ 823 V 82 kQ 4030007170 S CERAMIC C1608 CH 1H 221J T A 7030003670 S RESISTOR ERJSGEYJ 823 V 82 kQ 4030007170 S CERAMIC C1608 CH 1H 221J T A 7030003630 S RESISTOR _ ERJSGEYJ 393 V 39 4030006860 S CERAMIC C1608 JB 1H 102K T A 7510001150 S THERMISTOR NTCCM1608 4BH 103KC 4030011600 S CERAMIC C1608 JB 1C 104KT N 7030003570 S RESISTOR ERJSGEYJ 123 V 12 4030011600 S CERAMIC C1608 JB 1C 104KT N 7030003580 S RESISTOR _ ERJSGEYJ 153 V 15 4030006860 S CERAMIC C1608 JB 1H 102K T A 7310002600 S TRIMMER RV 110 RHO3A3AS4X0AA 473 4030011600 S CERAMIC C1608 JB 1C 104KT N 7030003550 S RESISTOR ERJSGEYJ 822 V 8 2 4030006900 S CERAMIC C1608 JB 1E 103 7030003200 S RESISTOR
40. 6860 4030006860 4030006860 4030006860 4030006860 4030006860 4030006900 4030007000 4030007000 4030006860 S CERAM S CERAM 1608 1 104 S CERAMIC 1608 1 821 1608 1 472 1608 1 560 S CERAM C1608 JB 1H 102K T A S CERAM C1608 JB 1E 103K T A S ELECTROLYTIC ECEV1CA100SR S ELECTROLYTIC ECEV1CA101UP S CERAMIC C1608 JB 1E 103K T A S CERAMIC C1608 JB 1C 104KT N S CERAMIC C1608 JB 1C 104KT N S CERAMIC C1608 JB 1E 103K T A S ELECTROLYTIC ECEV1CA100SR S CERAMIC C1608 JB 1C 104KT N S CERAMIC C1608 JB 1E 103K T A S CERAMIC C1608 JB 1C 104KT N S CERAMIC C1608 JB 1E 103K T A S ELECTROLYTIC ECEV1HA2R2SR S CERAMIC C1608 JB 1E 103K T A S CERAMIC C1608 JB 1C 104KT N S CERAMIC C1608 JB 1H 102K T A ELECTROLYTIC 16 MV 470 HC ELECTROLYTIC 16 MV 470 CA S CERAM C1608 JB 1C 104KT N S CERAM C1608 CH 1H 470J T A S CERAM C1608 JB 1H 102K T A S CERAM C1608 JB 1H 102K T A S CERAM C1608 CH 1H 220J T A S CERAM C1608 CH 1H 220J T A S CERAM C1608 JB 1H 102K T A S CERAM C1608 JB 1E 103K T A S CERAM C1608 JB 1H 102K T A S CERAM C1608 JB 1E 103K T A S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S C
41. 821 V 820 ERJSGEY J 821 V 820 ERJSGEYJ 105 V 1 ERJSGEYJ 103 V 10 ERJSGEYJ 333 V 33 kQ ERJSGEYJ 270 V 27 ERJSGEYJ 270 V 27 ERJSGEYJ 123 V 12 ERJ3GEYJ 332 V 3 3 ERJSGEYJ 102 V 1 ERJSGEYJ 393 V 39 kQ ERJSGEYJ 473 V 47 ERJSGEYJ 103 V 10 ERJSGEYJ 103 V 10 ERJSGEYJ 103 V 10 ERJSGEYJ 183 V 18 ERJSGEYJ 183 V 18 ERJSGEYJ 183 V 18 ERJSGEYJ 331 V 330 ERJSGEYJ 471 V 470 ERJ3GEYJ 682 V 6 8 ERJSGEYJ 472 V ERJSGEYJ 473 V 47 ERJSGEY J 393 V 39 ERJSGEYJ 393 V 39 kQ ERJSGEYJ 822 V ERJSGEYJ 103 V ERJSGEYJ 153 V 10 15 ERJSGEYJ 152 V 1 5 ERJSGEYJ 103 V ERJSGEYJ 103 V 10 kQ ERJSGEYJ 103 V 10 ERJSGEYJ 103 V 10 ERJSGEYJ 103 V 10 kQ ERJSGEYJ 103 V 10 ERJSGEYJ 103 V 10 kQ ERJSGEYJ 103 V 10 ERJSGEYJ 103 V 10 ERJSGEYJ 103 V 10 10 8 2 4 7 7030004120 7030004120 7030004120 7030004120 7030004120 7030004120 7030004120 7030004120 7030003790 7030003490 7030004120 7030003720 7030003640 7030003700 7030003680 7030003280 7030003680 7030003680 7030003560 7030003560 7030003250 7030003560 7030003500 7030003680 7030003680 7030003680 7030003680 4030006860 4030006860 4030006860 4030006850 4030006860 4030006850 4030006900 4510004630 4030006880 4030008890 4030006900 4030006900 4030006900 40300
42. Brindejonc des Moulinais BP 5804 31505 Toulouse Cedex France Phone 56136 0303 Fax 561 36 03 00 URL http www icom france com Asia Icom Inc 6F No 68 Sec 1 Cheng Teh Road Taipei Taiwan R O C Phone 02 2559 1899 Fax 02 2559 1874 Count on us Icom Inc 5 1380817 1 1 1 32 Hirano ku Osaka 547 0003 Japan 2001 Icom Inc
43. CA100SR S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CONNECTOR S CONNECTOR S CONNECTOR LCD S LED S LED S LED S LED S LED S LED PCB LCD CONTACT C1608 JB 1E 103 C1608 CH 1H 270J T A C1608 JB 1E 103 C1608 JB 1E 103 C1608 CH 1H 240J T A C1608 JB 1E 103 C1608 JB 1E 103 C1608 JB 1H 102K T A B6B ZR SM3 TF B3B PH SM3 TB 40FLT SM1 TB 5341 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 FY1101F TR LED FY1101F TR LED B 5679A SRCN 2438 SP N W S Surface mount VR A BOARD MAIN UNIT DESCRIPTION ORDER NO DESCRIPTION 7210002350 VARIABLE TP96N97N15F 10KA 1301 1790001210 S DIODE 1SS375 TL 1750000550 S DIODE 155355 TE 17 1790000620 S DIODE 77 TX 1790000620 S DIODE MA77 TX 1790000660 S DIODE MA728 TX 8900010820 CABLE OPC 1099 0910054112 PCB B 5585B 2010002420 MONOLITH 21R15AB FL 310 2010002420 MONOLITH 21R15AB FL 310 2020001520 CERAMIC CFWS450F 2040001440 S LC NFM60R20T152 2040001440 S LC NFM60R20T152 VR B BOARD 6070000210 S DISCRIMINATOR CDBCA450CX24 DESCRIPTION 6050010800 S XTAL CR 659 21 25 MHz 7210002360 VARIABLE TP96N97 15F 10KB 1301 6200003050 S COI NL 322522T R82J 3 6200002410 S COI NL 252018T 056J 0910054122 PCB B 5586B 6200002430 S COI NL 252018T 082J 6200003090 S COI NL 322522T 2R7J 3 6200008190 S COI 0 25 1 9 8TL 80N 6200009180
44. ERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM S CERAM C1608 CH 1H 470J T A C1608 CH 1H 050B T A C1608 CH 1H 120J T A C1608 CH 1H 330J T A C1608 CH 1H 120J T A C1608 CH 1H 010B T A C1608 CH 1H 020B T A C1608 CH 1H 120J T A C1608 CH 1H 330J T A C1608 CH 1H 120J T A C1608 CH 1H 050B T A C1608 CH 1H 470J T A C1608 JB 1E 103K T A C1608 CH 1H 470J T A C1608 CH 1H 050B T A C1608 CH 1H 120J T A C1608 CH 1H 330J T A C1608 CH 1H 150J T A C1608 CH 1H 010B T A C1608 CH 1H 020B T A C1608 CH 1H 120J T A C1608 CH 1H 330J T A C1608 CH 1H 120J T A C1608 CH 1H 050B T A C1608 CH 1H 120J T A C1608 JB 1H 471K T A C1608 JB 1H 102K T A C1608 JB 1H 471K T A C1608 JB 1H 102K T A C1608 CH 1H 560J T A C1608 JB 1C 104KT N C1608 JB 1C 104KT N C1608 JB 1C 104KT N C1608 CH 1H 470J T A C1608 JB 1H 102K T A C1608 JB 1H 272K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1E 103K T A C1608 CH 1H 090D T A C1608 CH 1H 090D T A C1608 JB 1H 102K T A OQOOOO0000000000000000000000000000000000000000000000000000000 S Surface mount GRM42 6 CH 270J 500PT GRM42 6 CH 220J 500PT MAIN UNIT 6 2 MH 132 MAIN UNIT ad DESCRIPTION ORDE DESCRIPTION 4030006860 S CERAMIC C1608 JB 1H 102K T A 4030007090 S CERAMIC C1608 CH 1H 470J T A 4030007090 S CERAMIC C1608
45. ING THE MAIN UNIT D Unscrew 6 screws Note When replacing the screw 10 12 kg of torque MUST be applied to ensure water resistance Remove the shield cover 2 Unsolder DC cable 4 points and antenna connector 2 points as shown below Unscrew 2 screws and 6 screws D to remove the MAIN unit 2 Slide the case free of the chassis in the direction of the arrow SECTION 4 CIRCUIT DESCRIP TION 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 Received signals enter the MAIN unit from the antenna con nector and pass through the low pass filter L13 L14 L32 107 111 C280 The signals are then applied to the RF circuit via the antenna switching circuit D15 L15 C197 C198 4 1 2 RF CIRCUIT MAIN UNIT The RF circuit amplifies signals within the range of frequen cy coverage and filters out of band signals The signals from the antenna switching circuit pass through a tunable bandpass filter 019 L16 L17 L19 120 199 204 206 210 where the object signals are led to the RF amplifier circuit 027 The amplified signals at Q7 are applied to the 3 stage tun able bandpass filter D20 121 122 124 125 213 218 C220 C224 to suppress unwanted sign
46. NO MECHANICAL PARTS AND DISASSEMBLY DESCRIPTION 5030001950 8930054970 8210017700 8930054650 8930055060 VR A BOARD ORDER NO LCD TTR5341 LCD contact SRCN 2438 SP N W 2438 Reflector 2438 LCD holder 2438 White sheet DESCRIPTION 7210002350 VR B BOARD ORDER NO 7210002360 MAIN UNIT ORDER NO TP96N97N 15F 10KA 1301 incl nut DESCRIPTION TP96N97 15F 10KB 1301 incl nut DESCRIPTION 1150001540 8510013860 8510013710 8510002280 8930052270 8930056330 8510014180 ACCESSORIES ORDER NO SC 1302 2435 Shield case 2438 Module plate VCO shield plate A Shield sponge D Thermally sheet Z 2490 shield plate DESCRIPTION 8900009040 8900010760 8900010770 8950005110 8010017250 8010017270 8610010561 8610010591 8810004700 8810001490 8850000180 8850000500 Cable OPC 891 Cable OPC 1096 Cable OPC 1097 BLACK WHITE 2289 MIC hanger 2040 Mobile bracket 2040 Mobile bracket A 2040 Knob bolt 1 2040 Knob bolt A 1 Screw PH A0 3x16 SUS Screw PH A0 5x20 SUS Flat washer M5 SUS Spring washer M5 SUS BLACK WHITE BLACK WHITE N N N N N MP27 23 24 13 5 18 C 11 18 or C 14 C 5 M VR B BOARD VR A BOARD MP4 F UNIT abbreviations C CHA
47. NSISTOR FMW1 T148 TRANSISTOR DTC144EUA T106 TRANSISTOR DTC144EUA T106 TRANSISTOR 25 4116 TE85R TRANSISTOR 28A1588 GR 85 TRANSISTOR DTC144EUA T106 TRANSISTOR 28A1588 GR 85 TRANSISTOR DTC114TUA T106 TRANSISTOR DTC144EUA T106 TRANSISTOR 25 4226 2 R25 TRANSISTOR 25 4116 TE85R 7030003560 S RESISTOR ERJSGEYJ 103 V 10 7030003560 S RESISTOR ERJSGEYJ 103 V 10 7030003200 S RESISTOR 4 ERJSGEYJ 100 V 10 7030003500 S RESISTOR ERJSGEYJ 332 V 3 3 7030003480 S RESISTOR ERJSGEYJ 222 V 2 2 7030003460 S RESISTOR ERJSGEYJ 152 V 1 5 7030003460 S RESISTOR ERJ3GEYJ 152 V 1 5 7030003680 S RESISTOR ERJSGEYJ 104 V 100 7030003460 S RESISTOR ERJSGEYJ 152 V 1 5 7030003400 S RESISTOR ERJSGEYJ 471 V 470 Q 7030003450 S RESISTOR ERJSGEYJ 122 V 1 2 7030003400 S RESISTOR ERJ3GEYJ 471 V 470 7310002760 S TRIMMER RV 152 223 7030003600 S RESISTOR ERJ3GEYJ 223 V 22 7030003430 S RESISTOR ERJ3GEYJ 821 V 820 7030003740 S RESISTOR ERJ3GEYJ 334 V 330 7030003390 S RESISTOR 391 V 390 7030003460 S RESISTOR ERJ3GEYJ 152 V 1 5 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 7030003380 S RESISTOR 331 V 330 7030003460 S RESISTOR ERJ3GEYJ 152 V 1 5 7030003380 S RESISTOR 331 V 330 7030003440 S RESISTOR ERJSGEYJ
48. O A MANUAL VHF MARINE TRANSCEIVER IC M401EURO Icom Inc INTRODUCTION This service manual describes the latest service information for the IC M401bEURO VHF MARINE TRANSCEIVER at the time of publication 2 versions of the IC M401EURO have been designed This service manual covers each version VERSION IC M401EURO To upgrade quality anyelectrical or mechanical parts and internal circuits are subject to change without notice or obligation DANGER NEVER connect the transceiver to an AC outlet to a DC power supply that uses more than 16 V This will ruin the transceiver DO NOT expose the transceiver to rain snow or any liquids DO NOT reverse the polarities of the power supply when connecting the transceiver DO NOT apply an RF signal of more than 20 dBm 100mW to the antenna connector This could damage the trans ceiver s front end ORDERING PARTS Be sure to include the following four points when ordering replacement parts 10 digit order numbers Component part number and name Equipment model name and unit name Quantity required PONS lt SAMPLE ORDER gt 1110003200 S C 1136 IC M401EURO MAIN UNIT 5 pieces 8810006050 Screw Icom screw E7 IC M401EURO Chassis 10 pieces Addresses are provided on the inside back cover for your convenience REPAIR NOTES 1 Make sure a problem is internal before disassembling the transceiver
49. P 82nH 5P 0 001 001 728 33P 82nH 05 82 22 XB15A308 27 7 L cao I RX 073 V BPFV C37 C36 820 330k 01 0 J SEB 0001 15 T 10 10 CFWS450F R60 68 CHASSIS ve T R56 859 R63 R64 T YCOS 47k 3 10 m C100 C101 R c WW 70P 0 001 28C4116 BL T 99 ces C71 C294 t 77 l uh o a P m m 4 1 Bat R51 D5 0 01 R54 lt 0 001 220P 9 72 0 001 C ER 6283 106 113 L14 L32 R33 R34 17 100 MA77 82nH T 0 001 30 BIK Tapers 0 001 LA 243 LA 253 LA 243 wt 1k 14 15 60 1 H Hen M 07 07 I SMART 29 Pia Set Sl 5 I D6 C74 C76 Sp me 12 kH H 10 22050 051 cse H 177 100 he m d sub or Jf C110 8908 0 01 022 0001 47P E Q10 079 0270 C7 cao ca2 C89 5P T4P 220 0 001 77 T I 25C3775 3 18 18 47 6 001 10 220 P 0 001 1000 28 V 171 i 9 26 R25 H C286 _ C285 C107 C109 C111 C280 838 840 1 8 k 2SC4226 v L C267 C268 2286 18 27 15 18P AB m A 100 C56 L R50 R53 C75 911 2 C85 C86 7 1 0 0011 css 68k n 1k 0 001 25 3268 470 P 0 001 0 01 _ 6 001 D8 pg 04 846 470 P C64 Q12 lt ET HSM88ASR HSM88ASR DTC144EU cor 470P 2581202 865 084 Eee va D3 D4 2804215 4 N Y DEA 1
50. R100 C138 C139 to suppress unwanted lower noise signals The filtered signals are applied to the AF mute circuit IC12A and then passes through the VOLUME control VR A board R1 via the VOL1 signal The signals are applied to the AF power amplifier IC9 pin 1 The output signal from IC9 pin 4 drives the internal external speaker 4 1 6 SQUELCH CIRCUIT MAIN UNIT AND LOGIC BOARD A squelch circuit cuts out AF signals when no RF signals are received By detecting noise components in the AF signals the squelch circuit switches the AF mute switch A portion of the AF signals from the FM IF IC IC1 pin 9 pass through the squelch adjustment pot R16 and are then applied to the active filter section IC1 pin 8 The active filter section amplifies and filters noise components The filtered signals are applied to the noise detector section and output from pin 14 as the SQL signal The SQL sig nal is applied to the CPU LOGIC board IC1 pin 90 after being passed through the amplifier 1213 pins 1 4 The CPU analyzes the noise condition and outputs the signals to toggle the AF mute switches IC12A IC12B 4 2 TRANSMITTER CIRCUITS 4 2 1 MICROPHONE AMPLIFIER CIRCUIT MAIN UNIT The microphone amplifier circuit amplifies audio signals with 6 dB octave pre emphasis from the microphone to a level needed at the modulation circuit The AF signals from the microphone are amplified a
51. SSIS PARTS L LOGIC BOARD M MAIN UNIT VA VR A BOARD VB VR B BOARD F FRONT UNIT 7 2 132 CHASSIS PARTS MAIN UNIT ORDER NO DESCRIPTION A REF ORDER DESCRIPTION QTY 8900010610 Cable OPC 1081 BLACK MC1 7700002500 Microphone KUC3523 040245 1 8900010620 Cable OPC 1082 WHITE 8210017950 2352 front panel D 1 BLACK Screw and washer abbreviations 8210017960 2352 front panel E 1 WHITE BO BT Self Tapping PH Pan head 8210016850 2352 rear panel BLACK NI Nickel SUS Stainless 8210017110 2352 rear panel A WHITE ZK Black BiH Bind head 8930052160 2352 key 8930052150 2352 PTT rubber 8930052140 2352 PTT holder 8930052690 2352 MIC rubber 8930052120 2352 rubber 8930052110 2352 main seal 8610010870 2352 hanger knob 8310048760 2352 R plate 8310048780 2352 MIC plate 8820001150 2352 screw 8850001850 ICOM washer Y 8930052340 O ring AE 8930052350 O ring AF 8930056460 2449 MIC sheet 8930054910 2449 SP Rubber 8850001610 Spring washer M4 SUS 8810009260 Screw PH B0 2 x 6 NI BT 8810009240 Screw BiH M4 x 10 ZK 8810008900 Screw x 6 NI Zh Gu mx cA Qr nk cA LE LX 2 mk ed MAIN UNIT HM 132 UNIT abbreviations C CHASSIS PARTS M MAIN UNIT SECTION 8 e TRANSISTOR AND FET S 2SA1576 R Symbol FR J gt 2SA1588 GR Symbol ZG
52. als and improve the selectivity The signals are then applied to the 1st mixer cir cuit 4 1 3 1ST MIXER AND 1ST IF CIRCUITS MAIN UNIT The 1st mixer circuit converts the received signal to a fixed frequency of the 1st IF signal with a 1st LO VCO output fre quency By changing the 1st LO frequency only the desired frequency will be passed through two crystal filters at the next stage of the mixer 2ND IF AND DEMODULATOR CIRCUITS NW I R18 1C28 C27 le R20 Squelch level 8 20 7 adjustment pot R16 Noise The signals from the RF circuit are mixed with the VCO sig nals at the 1st mixer circuit Q1 to produce 21 7 MHz 1st IF signal The 1st IF signal is applied to two crystal filters F11 F12 to suppress out of band signals and is then amplified at the IF amplifier Q2 The amplified signal is applied to the 2nd mixer circuit IC1 4 1 4 2ND IF AND DEMODULATOR CIRCUITS MAIN UNIT The 2nd mixer circuit converts the 1st IF signal to a 2nd IF signal A double superheterodyne system which converts receive signals twice improves the image rejection ratio and obtains stable receiver gain The FM IF IC IC1 contains the 2nd local oscillator 2nd mixer limiter amplifier quadrature detector and noise detector circuits etc The 1st IF signal from Q2 is applied to the 2nd mixer section of IC1 pin 16 and is mixed with a 21 25 MHz 2nd LO sig nal generated at the PLL circu
53. ctor and set as Frequency 156 800 MHz Level 10 71 110 dBm 1 kHz 3 5 kHz Modulation Deviation Receiving Connect a DC volt meter to the check point CP2 This output level of a standard signal generator SSG is indicated as SSG s open circuit ADJUST ADJUST Audio generator 300 Hz to 3 kHz AC millivoltmeter 2 200 5 R71 Output power adjustment R138 Frequency deviation adjustment R16 Squelch level adjustment CP2 Squelch level check point SECTION 6 6 1 IC M401EURO LOGIC BOARD ORDE NO PARTS LIST DESCRIPTION LOGIC BOARD ORDE NO DESCRIPTION 1140009810 1130009680 1130007570 1130005290 1130009110 1170000350 1590000720 1530002850 1520000460 1530002850 1530002060 1590000680 1510000510 1560000810 1590001330 1560000810 1750000550 1750000550 1730002360 1730002360 1730002360 1730002360 6050011090 7030003680 7030003680 7030003680 7030003680 7030003430 7030003430 7030003800 7030003560 7030003620 7030003250 7030003250 7030003570 7030003500 7030003440 7030003630 7030003640 7030003560 7030003560 7030003560 7030003590 7030003590 703000
54. detector charge pump etc The circuit using a one IC MAIN unit IC2 directly generates the transmit frequency and receive 1st IF frequency with VCOs The PLL sets the divided ratio based on serial data from the CPU on the LOGIC unit and com pares the phases of VCO signals with the reference oscilla tor frequency The PLL IC detects the out of step phase and output from pins 8 for Tx and Rx The reference frequency 21 25 MHz is oscillated at X2 MAIN unit APC CIRCUIT RF signal from PLL 1 Power module 4 4 3 2 TX AND RX LOOP MAIN UNIT The generated signal at the VCO Q4 Q5 Q6 D1 D4 enters the PLL IC IC2 pin 2 and is divided at the pro grammable divider section and is then applied to the phase detector section The phase detector compares the input signal with a refer ence frequency and then outputs the out of phase signal pulse type signal from pin 8 The pulse type signal is converted into DC voltage lock voltage at the loop filter R29 R31 R41 C41 C42 C50 C51 and is then applied to varactor diodes D3 D4 of the VCO to stabilize the oscillated frequency The lock voltage from the loop filter is amplified at the buffer amplifier Q7 and then applied to the RF circuit 4 3 4 VCO CIRCUIT MAIN UNIT The VCO outputs from Q4 06 are buffer amplified at the buffer amplifiers Q7 and Q9 and are then sent to the Tx Rx switch D5 and D6 The receive LO signal is applied
55. it using the reference fre quency 21 25 MHz to produce a 450 kHz 2nd IF signal The 2nd IF signal from IC1 pin 3 is passed through the ceramic filter FI3 where unwanted signals are sup pressed and is then applied to the 2nd IF limiter amplifier in IC1 pin 5 The signal is applied to the FM detector sec tion in IC1 for demodulation into AF signals The FM detector circuit employs a quadrature detection method linear phase detection which uses a ceramic dis criminator X1 for phase delay to obtain a non adjusting cir cuit The detected signal from IC1 pin 9 is applied to the AF circuit 2nd IF filter 450 kHz 21 25 MHz T PLL IC 2 detector filter Limiter a AF signal DET C25 i amp T Ex detector IC1 TA31136F X2 21 25 MHz 14 16 pee MHz from the IF amplifier Q2 SQL signal to the CPU N JH gt 2 Q 5 2 LOGIC board IC1 pin 90 4 1 5 AF AMPLIFIER CIRCUIT MAIN AND FRONT UNITS The AF amplifier circuit amplifies the detected signals to drive a speaker The AF circuit includes an AF mute circuit for the squelch AF signals from IC1 pin 9 are applied to the de emphasis circuit R101 C140 The de emphasis circuit is an integrat ed circuit with frequency characteristic of 6 dB octave The integrated signals pass through the high pass filter 021 R96
56. ltage as the HV line which is passed through the PWR switch VR A board R1 Same voltage as the HVS line The voltage is applied to the optional DSC controller DS 100 Common 5 V converted from the VCC line at the regulator circuit MAIN unit IC8 Transmit 5 V controlled by the T5 control circuit MAIN unit Q24 Q25 using the SEND signal from CPU LOGIC board IC1 The controlled voltage is applied to the transmitter circuit Receive 5 V controlled by the R5 control circuit MAIN unit Q22 Q23 using the RCV circuit from CPU LOGIC board IC1 The controlled voltage is applied to the receiver circuit 4 7 PORT ALLOCATIONS 4 7 1 CPU LOGIC BOARD Description Outputs control signal for the LCD contrast CONTI CONT2 CONTRAST 0 0 LIGHT 1 1 DEEP Outputs beep audio signal Input port for the CH16 switch Low While CH16 switch is pushed Input port for the CH switch Low While CH switch is pushed Input port for the H L switch Low While H L switch is pushed Input port for the MIC hanging signal Low While MIC is pull up Outputs clock signal to the PLL IC MAIN unit IC2 pin 4 Outputs strobe signals to the PLL IC MAIN unit IC2 pin 3 Outputs data signals to the PLL IC MAIN unit IC2 pin 5 Outputs control signal to swtich NMEA or Outputs beep volume control signal Low Beep audio is maximum Outputs
57. n H VHF MARINE CHANNEL LIST Channel No Frequency MHz Channel No Frequency MHz Channel No Frequency MHz USA INT Transmit 156 050 Receive 160 650 USA INT Transmit 157 100 Receive 161 700 USA INT Transmit 156 675 Receive 156 675 156 050 156 050 157 100 157 100 156 725 156 725 156 100 160 700 157 150 161 750 156 775 156 775 156 150 160 750 157 150 157 150 156 825 156 825 156 150 156 150 157 200 161 800 156 875 156 875 156 200 160 800 157 250 161 850 156 925 161 525 156 250 160 850 157 300 161 900 156 925 156 925 156 250 156 250 157 350 161 950 156 975 161 575 156 300 156 300 157 400 162 000 156 975 156 975 156 350 160 950 156 025 160 625 157 025 161 625 156 350 156 350 156 025 156 025 157 025 157 025 156 400 156 400 156 075 160 675 157 075 161 675 156 450 156 450 156 075 156 075 157 075 157 075 156 500 156 500 156 125 160 725 157 125 161 725 156 550 156 550 156 125 156 125 157 125 157 125 156 600 156 600 156 175 160 775 157 175 161 775 156 650 156 650 156 175 156 175 157 175 157 175 156 700 156 700 156 225 160 825 157 225 161 825 156 750 156 750
58. n Capacity 40 or 50 dB 50 W or more Distortion meter 1 kHz 10 1 100 Frequency range Measuring range 5 Standard signal generator CAUTION DO NOT transmit while SSG is connected to the antenna connector Dummy load Resistance Capacity 50 Q 100 W or more 17 to 125 dBm 32 mV to 0 13 pV 10 EXT Speakerjack Distortion meter RF power meter 500 1 50 W 1 Speaker to DC cable Frequency gt DC power supply counter 13 8V 15A b FM deviation meter Attenuator Black cap 40 dB or 50 dB N EXT SP jack 7 Red line Black line to the antenna connector RS 5 2 ADUUSTMENTS MEASUREMENT ADJUSTMENT UNIT LOCATION UNIT Operating channel ch16 Connect a digital Receiving multi meter or oscil loscope to the check point CP1 ADJUSTMENT ADJUSTMENT CONDITION Operating channel ch16 Output power Low Transmitting REFERENCE 1 Operating channel ch16 Loosely couple the 156 8000 MHz FREQUENCY Output power Low frequency counter Connect an RF power meter or a to the antenna con 50 dummy load to the antenna nector connector Transmitting C36 Reference frequency adjustment
59. nit IC10B pins 5 7 and is then applied to the VCO circuit as modulation signal 4 4 2 DSC ENCODE CIRCUIT MAIN UNIT The DSC signal created at the optinal DSC controller DS 100 is applied to the T1 via the J7 and then as floating sys tem output The signal is applied to the buffer amplifier Q29 and then passes through the 6 dB oct pre emphasis circuit C282 C233 R203 R207 The signal is applied to the mixer circuit IC10A pin 2 to mix with signals from the microphone The signal passes through the low pass filter IC10B pins 5 7 and is then applied to the VCO circuit as modulation signal 4 5 LOGIC CIRCUITS LOGIC BOARD CPU IC1 is an 8 bit signal chip micro computer and contains LCD driver serial I O timer A D converter programmable I O ROM and RAM SYSTEM CLOCK CIRCUIT X1 is a ceramic oscillator and oscillate 9 8304 MHz system clock for the CPU IC1 RESET CIRCUIT IC6 is a reset IC When turn power ON IC6 outputs a reset signal pulse to the CPU IC1 15 via the RES line LOW BATTERY DETECTOR VCC voltage is divided by R74 R75 and is applied to the low battery detector section in the CPU IC1 pin 91 via the line DIMMER CIRCUIT CPU IC1 Q2 Q3 and Q4 are dimmer circuit and control the 4 steps the LCD backlight 053 058 4 6 POWER SUPPLY CIRCUITS VOLTAGE LINES LINE DESCRIPTION The voltage from the connected DC power sup ply Same vo
60. t the microphone amplifier IC11A via the analog switch IC12B pins 6 5 A capacitor C159 and resistor R121 are con nected to the amplifier to obtain the pre emphasis charac teristics AF AMPLIFIER CIRCUIT The amplified signals are passed through the MIX circuit IC10A pins 2 1 to do amplitude limiting and are then applied to the splatter filter IC10B pin 5 to suppress unwanted 3 kHz or higher signals The filtered signals are then applied to the modulation circuit 4 2 2 MODULATION CIRCUIT MAIN UNIT The modulation circuit modulates the VCO oscillating signal RF signal using the microphone audio signals Audio signals from the splatter filter IC10B pass through the frequency deviation adjustment pot R138 and are then applied to the modulation circuit D2 D3 D4 to change the reactance of D2 D3 D4 and modulate the oscillated signal at the VCO Q5 Q6 4 2 3 DRIVE AMPLIFIER CIRCUIT MAIN UNIT The drive amplifier circuit amplifies the VCO oscillating sig nal to a level needed at the power amplifier The VCO output is buffer amplified by Q7 and Q9 and is then applied to the Tx Rx switch D6 The transmit signal from the Tx Rx switch is amplified to the pre drive Q10 and YGR Q11 amplifiers to obtain an approximate 300 mW sig nal level The amplified signal is then applied to the RF power amplifier IC3 4 2 4 POWER AMPLIFIER CIRCUIT MAIN UNIT The power amplifier circuit amplifies the

IC-M401EURO Service Manual

Contents

Download Pdf Manuals

Related Search

Related Contents