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IC-A24/A6 Service manual

1. E Q16 25 4215 015 25 4215 021 018 040 1SV271 041 1 271 12 UNR9210J MA785 V CFWCA450KDFA ANLC ANL D ANL AM Q 450MHz SW p DET BPF i 1 aio 09 061 014 2SD1819A 2SD1819A Tx 118 000 136 975 MHz 1 UNR9210J 2501819 855 Rx 108 000 136 975 MHz CHASSIS zi 4 AGC AGC 161 650 163 275 MHz 1 AGC 55
2. 04 04 O4 04 0 O4 O4 O4 on 04 1919191919 2 amp zr E 1000 1019 El 5 2 lt 88 eg B E 28 5 2 7 iol lt 2 8 gt T E 88 5 5 22 1 T E 8 10001 72910 58 52 iol 2 iol ES T1 iol haig 8 1000
3. Horizonal 45 40 35 20 10 Vertical 9 2 RF UNIT TOP VIEW J6 9 y mia 2 gt 5 55520259892 2129920042 2 22569 PERT 0 m Im m 215 Os Pob id 2220 are lt 9 959 2 gt 9 3 8 10 o 10 10 og 5 5 as 10 wo o wo 10 e 10 e 0 o Q gt E e SISSVHO e 1800 T 240 gt 1 lt M o 10 10 o wo wo o LO CD e N from Battery pack BOTTOM VIEW RF UNIT 115 110 105 100 95 90 85 80 75 70 65 Horizonal 60 55 50 45 40 35 30 25 20 15 10 45 40 35 30 o 15 10 Vertical SECTION 10 BLOCK DIAGRAM
4. 15 i L LI DCIN R103 27 12 022 2581201 020 SB07 03C EP4 VCCBT AW R107 150 R227 ik R225 22k ANY 244 242 0 015 0 01 C262 0 001 AW R194 330k VIN SBATT Hi C384 0 022 0 022 C385 I Hi C126 0 01 1 C125 0 001 2 SBATT R195 150k C176 0 1 YI 155400 031 5 EP6 MESUREMENT CONDITIONS Power supply voltage 7 2V Mesurment frequency 127 050 MHz RX signal level 609 Mesurment device Tester internal resistor less than 50kQ V Explanatory notes VOLTAGE LINE me 1 1 mm LINE 1 11 4 1 6 7368 223 1 R210 R146 dk ERJ2GE JPW JACKDET D52 25111 5 CLONE R140 ERJ2GE JPW 47 c181 C195 100 221 100 W10000 R233 ERJ2GE JPW AN EXTSP CHASSIS SP1 Icom Inc 1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan Phone 81 06 6793 5302 Fax 481 06 6793 0013 URL http www icom co jp world
5. 45 1 18 7 53 8 4 4 76 2 6 3 57 4 6 2 19 24 6 11 9 25 3 19 5 15 1 8 9 13 3 70 3 26 7 53 7 41 7 49 8 40 2 76 4 26 71 1 15 3 63 7 6 7 64 7 23 8 71 6 23 15 41 3 15 37 2 23 9 7 6 18 2 8 6 79 4 42 9 55 6 31 1 52 4 35 8 54 8 33 2 55 9 36 5 74 5 28 3 76 30 2 68 7 24 1 66 1 6 21 7 23 1 23 5 5 7 56 9 18 1 81 9 40 9 60 9 19 4 37 4 9 6 37 4 8 6 74 9 25 7 51 8 39 4 55 5 39 4 56 5 39 4 50 1 42 49 5 43 2 75 6 23 4 75 9 28 77 1 28 3 68 3 23 1 71 1 19 6 69 5 22 8 15 39 7 15 35 6 57 10 5 64 6 5 2 18 7 28 9 18 2 19 2 18 2 18 2 20 1 19 2 26 2 16 5 24 9 16 23 8 16 20 5 12 6 18 5 12 6 14 7 13 14 2 15 1 14 7 13 9 15 6 12 1 12 1 20 1 15 1 25 5 9 9 29 8 9 4 31 1 13 9 29 8 7030005040 7030005290 7030005100 7030008400 7030005040 7030005110 7030005040 7030008290 7030005040 7510000940 7030005060 7030005000 7030005090 7030007350 7030005170 7030009150 7030005220 7030005090 7030005040 7030005160 7030005160 7030007320 7210003190 7030005090 7030005120 7030005120 7030005090 7030005120 7030005120 7030005120 7030005120 7030010040 7030005160 7030005160 7030005160 7030005160 7510001660 7030005090 7030005090 7030010040 7030010040 7030008010 7030005160 7030005160 7030008010 7030008010 7030008010 7030005090 7030005090 7030010040 7030007290 7030005060 7030005050 7030005120 7030005120 7030005120 7030005120 7030005120
6. MA8051 M MA8082 M RBO6OL 40 5 07 03 Symbol 5 1 Symbol 8 2 Symbol 36 Symbol J Al qd 4 E e m 2SA1586 GR 2SA1588 GR 2581132 T100 2581182 TL Q 2SB1201 S Symbol SG Symbol ZG Symbol BAR Symbol None Symbol B1201 E B Ah E EL 2SC3357 1 RF 2SC4116 BL 2SC4211 6 TL 25 4215 0 25 4226 T1 R25 Symbol RF Symbol LL Symbol L6 Symbol QO Symbol R25 B B B B B a Zt E E E E Lt Lt 25 4403 3 TL 25 4617 TLS 2SD1819 AR 2SK880 Y 3SK293 Symbol LY3 Symbol BS Symbol LG Symbol XY Symbol UF B B B 8 DLH ii 174 f zm 7 A E E E D S G1 3SK299 T1 U73 HAT1024R RD01MUS1 RD12MVS1 T12 UNR9110J Symbol U73 Symbol 4B3 Symbol K2 Symbol RD12MVS1 Symbol 6L D2 D G2 TT 1s i soft S G1 D1 DLT top view UNR9115J UNR9210J UNR9211J UNR9213J UNR9215J Symbol 6E Symbol 8L Symbol 8A Symbol 8C Symbol 8E B B B B B Ian fon 1113 1401 1501 4315 4601 Symbol 7L Symbol 5V Symbol 5R Symbol CB Symbol 5C B1 C1 Bi E1 m 2 C1 1 B1 kw ww 2 B2 C2 B2 C2 SECTION 9 BO
7. USA GEN EUR A24 E only UJ UJ UJ U2 WUWU 0000000 4343313 100 1 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 100 1 14 1 27 5 19 2 28 9 17 4 29 3 21 9 14 2 18 2 46 8 15 3 34 1 14 1 37 6 17 2 39 6 16 1 50 8 16 41 9 13 4 41 9 14 4 49 2 12 2 52 4 6 3 52 4 6 3 50 3 8 4 53 10 5 53 13 6 58 1 13 60 1 13 57 14 6 62 9 16 9 62 3 13 3 59 9 7 9 65 1 13 1 52 4 2 8 52 4 1 3 48 3 1 54 9 3 3 55 5 5 3 20 5 27 4 22 6 27 4 20 7 25 6 21 9 23 9 27 9 19 5 25 1 24 1 28 1 25 7 62 3 23 7 34 7 22 3 30 5 19 5 35 8 24 5 42 23 3 44 3 22 37 25 39 5 26 3 46 1 22 48 8 25 1 49 4 22 6 50 4 21 3 51 2 25 1 52 5 24 6 54 9 21 6 55 4 20 4 54 3 24 6 59 6 20 8 59 2 24 5 64 7 22 64 7 22 9 64 5 21 1 62 3 21 9 65 4 21 69 4 20 8 71 4 18 7 68 5 16 8 69 2 12 6 66 5 4 67 7 2 70 1 1 8 74 7 2 2 75 6 3 5 70 5 11 4 76 3 8 7 106 3 5 77 1 9 5 78 4 4 9 110 3 6 7 81 1 6 83 1 6 86 3 10 4 91 5 11 3 87 7 8 84 4 5 7 38 5 26 3 94 4 7 8 93 4 4 4 98 5 4 2 96 4 5 7 101 8 7 6 62 1 5 3 64 9 7 9 64 4 10 111 5 33 8 100 4 40 1 RF UNIT ORDER DESCRIPTION H V LOCATION 4510008490 4030017460 4030006900 4030017460 4030017460 4510008500 4030017640 4030017460 4030017460 4030017460 4030017460 4030017660 4030017460 4550000560 4550002980 4030017460 4030017460
8. 5 x ale AFC M AF AMP LIGHT DRIVE 9 DETECT 1 7 REG T 1 alo amp amp 1 IC18d 055 0510 Q1 25 1132 amp 1 D52 MA2S111 LMV324IPW M62363FP 1 6 SML 512MWx6 02 2SC4211 lt gt EEPROM S 24CS64A01 9 ELECTRO WV TA7368F DEA gt ad LED CPU Q5 UNR9210J DETECT gt gt 0 EXT SP DRIVE 011 25111 LIGHT CLONE IN CLONE CLONE OUT yo 030 155400 1 DCIN E EXT V voL gt uPD78F0338GC Y DETECT i Q24 Q3 28 4617 019 RBOGOL D7 MA8082 D22 MA2S728 Exroc a 08 MA2S111 HV lt pc sw E DN 031 188400 CHASSIS UNIT aN 040 25 1588 KS0 3 T DETECT Q22 2581201 KR0 4 CHARGE 021 MA133 Q41 26 4617 039 UNR9213J x1 Q4 2581182 020 5 07 03 747 Q6 UNR9110J 5V 032 25111 9 8304MHz 1 16 Q7 XP1501 1 D18 25077 S 812C50BMC D10 MA2S111 1 KEY INITIAL CPUSV 45 5V 1 MATRIX MATRIX RESET Kj REG neo CURRENT VOLTAGE LINE lt COMMON LINE r P 25111 D5 24111 IC A24 A6 only 162 8052456 163 XC6202P502PR wa de i D2 MA6S121 D6 MA2S111 IC A24 A24E only lt DATA LINE EB LI i RXLINE m ni 1 x t 72 ne BATTERY PACK CHGC CHGIH 10 1 to RF unit J6
9. 9 G m 809 9 JINT 1000 dozy 8 lt 0199 5 8 8 28 7 e SIH ga 59 o 8 98 52 2 88 18 85 I dee E 80 1000 9019 0100 Es 8 1 MNZISAWS ob 010 sey zz H ES E 1090 EE F x 5 8 5 100 MNZIS INS g 48 al 5 gt 9854 E 6090 650 55 55 a 1 52 52 88 dg ERES elo 52 6 25 19 E x x t MINZIS IWS 2 5 145 m 102 ssa 850 gt 99 SLY 9 9 5 WW T 3 TACHO Hr W M 96936 5 FOOL 5 Or 935 5 2 e038 5 1000 8180 36035 515555 e e 88038 e 62035 zzz afola 82035 lt dn3a gt ldaoxe 36 2936 1038 08938 E 16935 1 935 5 62036 5 825 62985 12935 86938 E 1000 6190 Auo 2935 5 8 lt avevivev oP 92038 5 azogs 08 _ 92985 8 8 85 veoas 82 EE 15 ezoas 0 293 90826910 AW 8936 8 SAS a 22935 55 12925 997 0945 5 10009519 voas S6 0955 m E 61935 92 0933 10005519 tc 619535 i 9 81935 81938 00228810 m GE T Wi Grid 91935 Oz 9936
10. 020 UNR9115J 07 2581132 VOLT 1 1 R5S T5 Q8 25 4211 025 2581132 1 IC12d NJM2902V 1 14 NJM2903V RIPPLE 033 2684116 REG REG 07 023 133 D27 MA111 i 12d NJM2902 N FIL 026 UNR9211J 1 1 Di BPF Ly m EXT MIG J2 1 1 REG 1 i BUFF IC11a NJM2903V IC13a NJM2904V IC14b NJM2903V IE 036 25111 pl 1 a Q50 25 1586 p We Ho piu D BPF D DET LPF _ 4 DETECT IC12c NJM2902V D16 25111 IC13b NJM2904V x i IC11b NJM2903V 1 5 IC18c IC18b IC18a IC17 IC15 AN6123MS oils LMV324IPW LMV324IPW LMV324IPW M62363FP 1 19 NJM2107F M62363FP UNR9211J 1 i AMP 1 ELECTRO ELECTRO Pease EET 1 1 a 5 D VOLUME VOLUME MUTE i 013 2504211 SHIFT 165 pi 1 16 1 IC A24 A24E only 017 MA2S111 1 RESISTOR BU4094BCFV M62343GP A GA RRS SS ree vem pm eee cee ee lt 1 D19 MA8051 ul 016 UNR9213J 091 A0280 al ol o 1 2 5 ALC 1052 9 5 1 1 ey CONTROL 4315 pi 671 P coNrRoL o ojs eB 99 2 RF UNIT B E mammam METETE T mamumamum auum TETTEIT uma 052 053 Q8 Q9 x Q35 2581201 SML A12MT 2 UNR9213Jx2 g E Q36 XP1501 E INT SP es VY Y a 5 LOGIC UNIT E BACK LED
11. B 78 6 3 1 7030000230 MCR10EZHJ 56 560 49 9 14 4 D42 1750000530 5 010 1SV271 TPH3 T 70 6 17 3 7030005120 ERJ2GEJ 102 X 1 ko 49 2 10 7 D43 1790001260 S DIO MA2S077 TX B 43 3 24 8 7030007290 ERJ2GEJ 222 X 2 2 kQ 47 8 13 9 D44 1720000730 S VCP MA2S30400L 45 7 26 2 7030005040 ERJ2GEu 472 X 4 7 50 9 6 4 D45 1720000730 S VCP MA2S30400L T 87 1 27 5 7030005220 ERJ2GEJ 223 X 22 49 7 7 4 D46 1720000730 MA2S30400L 87 2 24 9 7030005120 ERJ2GEJ 102 X 1 50 7 10 3 047 1720000730 MA2S30400L 87 2 23 6 7030005090 ERJ2GEJ 104 X 100 50 3 9 4 D48 1750000710 S VCP HVC350BTRF T 80 3 28 1 7030005120 ERJ2GEJ 102 X 1 51 9 14 6 D51 1750000460 S DIO 1SV246 TL T 61 6 10 8 7030004980 ERJ2GEJ 101 X 100 0 53 11 8 D52 1790001250 5 010 MA2S111 TX 62 9 37 5 7030007340 ERJ2GEJ 153 X 15 54 7 13 9 7030005530 ERJ2GEJ 100 X 10 0 56 14 2 7030005220 ERJ2GEJ 223 22 57 2 10 4 FH 2030000390 S MLH FL 378 30 05 MHz T 67 2 24 3 7030005590 ERJ2GEu 680 X 68 58 6 9 1 2 2020002130 S CER CFWCA450KDFA RO T 73 5 4 7 7030009160 ERJ2GEJ 181 X 180 0 59 9 11 5 7030005210 ERJ2GEJ 822 8 2 61 3 14 3 7030005050 ERJ2GEJ 103 X 10 59 9 9 4 6070000190 S DCR CDBCB450KCAY24 RO 64 2 4 8 7030005570 ERJ2GEJ 820 X 82 0 63 8 12 8 x2 6050012020 5 DSB535SB 29 6 MHz CR 791 B 100 3 27 7030005570 ERJ2GEu 820 X 82 0 63 3 14 1
12. 7600000210 ECR gt 70 00 20 15 1903 0910058212 PCB B6170B 8930063550 LCT SRCN 2791 SP N W lt lt lt lt lt lt lt lt lt lt lt lt lt lt lt lt lt lt lt lt lt lt lt lt UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ WUWU WUWU 44044 1590001160 1560001370 1560001240 1530003340 1530003280 1530002560 1520000460 1530003280 1540000520 1540000520 1580000730 1580000760 1530002600 1540000520 1530002600 1530002600 1530002600 1530003280 1590003390 1590003250 1590003270 1520000650 1590002580 1520000460 1590003280 1530002560 1530002560 1530002850 1520000650 1590001170 1590003290 1510000670 1530003630 1560000540 1510000770 1590003280 1401 RD12MVS1 T12 RDO1MUS1 28C3357 T1 RF 28C4211 6 TL 28C4403 3 TL 2881132 7100 R 28C4211 6 TL 2501819 TX 2SD1819A TX 3SK293 TE85L 38 299 1 073 28C4215 O TE85R 2501819 TX 28C4215 O TE85R 28C4215 O TE85R 28C4215 O TE85R 28C4211 6 TL UNR9215J TX A24 E only UNR9115J TX UNR9210J TX 28B1201 S TL HAT1024R EL 2881132 7100 UNR9211J TX 28C4403 3 TL 28C4403 3 TL 28C4116 BL TE85R 28B1201 S TL XP1501 TX AB UNR9213J
13. AM AM 5 22 Bes ge H w we 1H ER 5 028 E cum Eu ERJ2GE JPW 254403 R251 R344 R342 8 5 1 5 0 5 060 m 045 1M ERJSGE JPW ERJBGE JPW x 254206 1 8 2SK880 AM AW RI 1 Explanatory notes R345 R343 g a ERJ3GE JPW ERJBGE JPW LA I Ji 27 059 1 VOLTAGE LINE 1 Mr ARP 1 254226 R315 1 Bon C3370001 o MCR10 JPW gt emm TXLINE 1 est NT 88 AT a PET 4 97 C RXLINE 77 TE Se Ss a eee 11 2 1000 1000 960 6620 1000 5V 036 MA2S111 gt dzz dg 0129 960 dzz AULLELNAH 9 gt dec 160 182 2SD1819A Q9 R224 33k Nw 1000 dzz 301 dg 3uLIELOAH 1 6 100 6559 E 1000 4202 Old C10 0 001 TX 0V RX 0 33V 1 18 LMV324IPW V GND 1000 5260 1000 629 WR 212 E 1000 8 1H AW 258 AN 15 60n AL AW OXM R8 270 AW oro vid tta 1000 21 1619 LMV324IPW C406 0 001 1 1000 820 65H 1000 dz Tw 9269 629 262 ds 810
14. R78 82k L81 037 MA2S111 xv 4 182 0 154 vo a 8 S 1 1000 89 1000 589 1660 HAH e dzz 0659 10 0859 M62343GP 1 16 77 R211 390k L80 SDATA SCK DA1STB RF UNIT 2 35V 35V uM GS NE 3 R2 2 8 T 12 L45 5 gt 65n 65n 65n 50n 2 ov 9 YY Di HVU131TRF eal 3p 7p 7p els 5 8 SN SS tr 116 50 v 4 88 88 TX 0V RX 4 8V Y R5S 1 I 8 1 5 R41 180k I AW C234 xc an 28 0 001 4 77 170 C2012C 47NG C62 C329 0 001 0 001 C405 0 001 8220 C240 470 0 001 8 I Hes n 950 2541586 e Hn n Se Explanatory notes 1 VOLTAGE LINE 1 1 1 1 E gt mem LINE 0 amp 09 9 11 3 D nga 5V RF UNIT 3 es nea Mp E ma 5 165 BU4094BCFV 1 17 M62363FP 650C C416 0 001 J6 CHASSIS Ji ANT AGCOFF 2 INTPTT 3 5 SKHLLFAO10 SKHLLFAO10 S2 51 C333 0 001 to LOGIC unit J1
15. the expander IC IC17 using bandpass filter control voltages T1 T4 These diodes tune the center frequency of an RF passband for wide bandwidth receiving and good image response rejection 4 1 3 1ST MIXER AND 1ST IF CIRCUITS RF UNIT The 1st mixer circuit converts the received signal into a fixed frequency of the 1st IF signal with a PLL output frequency By changing the PLL frequency only the desired frequency will pass through a crystal filter at the next stage of the 1st mixer RF AND IF CIRCUIT The signals from the RF circuit are mixed at the 1st mixer Q12 with a 1st LO signal AM 77 95 106 925 MHz FM 131 6 133 225 MHz coming from the VCO circuit to produce a 30 05 MHz 1st IF signal The 1st IF signal is applied to a crystal filter to sup press out of band signals The filtered 1st IF signal is applied to the 1st IF amplifier Q13 then applied to the 2nd mixer circuit IC1 pin 16 4 1 4 2ND IF AND DEMODULATOR CIRCUITS RF UNIT The 2nd mixer circuit converts the 1st IF signal into a 2nd IF signal A double conversion superheterodyne system which converts receive signals twice improves the image rejection ratio and obtains stable receiver gain The IF IC contains the 2nd local oscillator 2nd mixer limiter amplifier quadrature detector and s meter detector circuit etc The 1st IF signal from the 1st IF amplifier Q13 is applied to the 2nd mixer section of the IF IC IC1
16. 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017430 ECJOEC1H101J 4030016790 ECJOEB1C103K A24 E only 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017440 ECJOEC1H221J 4030016790 ECJOEB1C103K 4030016790 ECJOEB1C103K 4030017730 ECJOEB1E471K 4030017460 ECJOEB1E102K 4030017430 ECJOEC1H101J 4030017460 ECJOEB1E102K 4030017730 ECJOEB1E471K 4030017420 ECJOEC1H470J 4030016930 ECJOEB1A104K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017430 ECJOEC1H101J 4030017430 ECJOEC1H101J 4030017430 ECJOEC1H101J 6510020120 S CNR AXK6S40545P 5030002700 LCD A0280 LCD40 8 27 5 26 0 55T 5040002960 S LED SML A12MT T86 5040002960 S LED SML A12MT T86 5040002930 S LED SML 512MW T86 5040002930 S LED SML 512MW T86 5040002930 S LED SML 512MW T86 5040002930 S LED SML 512MW T86 5040002930 S LED SML 512MW T86 5040002930 S LED SML 512MW T86 68 8 38 4 2 8 32 7 2 8 14 7 42 2 34 3 54 4 33 9 69 4 33 9 41 4 13 2 54 4 13 4 69 4 13 4 o 7700002310 EM 140
17. A24 E only 25111 MA6S121 25111 25111 except EUR A24 E only MA2S111 25111 MA2S111 MA2S111 A24 E only MA2S111 A24 E only MA2S077 MA8051 M TX CR 747 9 8304 MHz ERJ2GEJ 105 X 1 MQ ERJ2GEJ 225 2 2 ERJ2GEJ 104 X 100 ERJ2GEJ 122 X 1 2 ERJ2GEJ 122 X 1 2 kQ ERJ2GEJ 122 X 1 2 ERJ2GEJ 332 X 3 3 ERJ2GEJ 392 X 3 9 kQ ERJ2GEJ 104 X 100 kQ ERJ2GEJ 103 X 10 ERJ2GEJ 103 X 10 ERJ2GEJ 103 X 10 kQ ERJ2GEJ 103 X 10 ERJ2GEJ 472 X 4 7 ERJ2GEJ 181 X 180 Q ERJ2GEJ 181 X 180 Q ERJ2GEJ 153 X 15 ERJ2GEJ 153 X 15 ERJ2GEJ 393 X 39 ERJ2GEJ 473 X 47 kQ ERJ2GEJ 104 X 100 A24 E A24 E A24 E A24 E A24 E ERJ2GEJ 153 15 ERJ2GEJ 472 X 4 7 ERJ2GEJ 224 220 A24 E ERJ2GEJ 224 220 A24 E ERJ2GEJ 103 X 10 A24 E ERJ2GEJ 274 270 A24 E ERJ2GEJ 183 X 18 A24 E ERJ2GEJ 184 X 180 A24 E A24 E A24 E A24 E ERJ2GEJ 183 X 18 ERJ2GEJ 472 X 4 7 kQ ERJ2GEJ 472 X 4 7 kQ ERJ2GEJ 224 X 220 A24 E 24 24 ERJ2GEJ 563 56 ERJ2GEJ 333 33 ERJ2GEJ 224 220 24 U
18. DO NOT apply an RF signal of more than 20 dBm 100 mW to the antenna connector This could damage the transceiver s front end ORDERING PARTS Be sure to include the following four points when ordering replacement parts 1 10 digit order numbers 2 Component part number and name 3 Equipment model name and unit name 4 Quantity required SAMPLE ORDER 1110003490 510 TA31136FN IC A24 RFUNIT 5 pieces 8810009560 Screw PH BT M2x6 ZK IC A24 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 DO NOT open the transceiver until the transceiver is disconnected from its power source DO NOT force any of the variable components Turn them slowly and smoothly DO NOT short any circuits or electronic parts An insulated tuning tool MUST be used for all adjustments DO NOT keep power ON for a long time when the transceiver is defective DO NOT transmit power into a signal generator or a sweep generator ALWAYS connect a 50 dB to 60 dB attenuator between the transceiver and a deviation meter or spectrum analyzer when using such test equipment 8 READ the instructions of test equipment thoroughly before connecting equipment to the transceiver NOOR Icom Icom Inc and CoM are registered trademarks of Icom Incorporated Japan in the United States the United Kingdom Germany F
19. IC A24E only 3310002130 Antenna FA BO2AR 0880001620 Battery BP 208N USA 1 0800005423 Battery BP 210N Other 5930001220 Charger BC 110AR USA USA 2 5930001230 Charger BC 110DR GEN EUR NY cm cmo es 8010019930 MB 103 8010018080 Strap belt HK 009 E a 0800008040 Carrying case IC A24 USA IC A24E USA 2 LOGIC UNIT ACCESORIES DESCRIPTION MP1 5030002700 LCD 0280 8930063550 LCD contact SRCN 2791 SP N W 7700002310 Microphone EM 140 7210003190 Variable resistor TP76NO0 15F 10KA 2791 7600000210 Encoder TP70NOOE20 15F 1903 8930063520 2791 LCD holder 8210020900 2791 reflector 8930064980 2791 LCD filter 5 MP1 C MP13 1 Z 14 MP36 d MP26 C 4 D P C d P MP15 C 8 MP24 1 MP6 P MP25 C ie ENERO 0 27 Pl e e00 MP36 C 8 MP30 MP30 C sd Note 3 MP36 5515 5 8 RF UNIT L LOGIC UNIT MP36 C 54 21 8 2 8 18 SECTION 8 SEMI
20. Rotate DIAL to set output power to 1 5 W USA GEN 1 0 W EUR Push ENT key IDLING CURRENT for driver amp PRESET 45 Operating frequency 127 500 MHz Connect a DC ammeter between the battery terminal and DC power supply 7 2 V Operating frequency 118 025 MHz Operating frequency 136 975 MHz Operating frequency 127 500 MHz Connect a DC ammeter between the DC 11V jack and DC power supply 11 V Operating frequency 118 025 MHz Operating frequency 136 975 MHz e Measure the current at 00 point B Rotate DIAL to adjust the current 8 150 mA Push ENT key MODULATION PRESET 4 3 Operating frequency 118 000 MHz Connect a 7 2 V DC power supply to the battery terminal Connect an audio generator to the MIC connector and set as 1 kHz 20 mVrms Set a modulation analyzer as HPF OFF LPF 20 kHz Detector OFF Transmitting Connect an 11 V power supply to the DC 11V jack Transmitting Rotate DIAL to set to 80 Push ENT key MAX MODULATION PRESET 4 1 Operating frequency 127 500 MHz Connect a 7 2 V power supply to the battery terminal Connect an audio generator to the MIC connector and set as 1 kHz 20 mVrms Set a modulation analyzer as HPF OFF LPF 20 kHz Detector 2 Transmitting e Operating frequency 118 025 MHz Transmitting Operati
21. 4550006220 4030017460 4030016930 4030016930 4030016930 4030016930 4030017400 4550006540 4510008500 4550006540 4030017460 4030017460 4550006540 4030017460 4030017460 4030017460 4030017460 4510008500 4030017460 4030016790 4030017400 4030017490 4030017640 4030007050 4030006980 4030007080 4030017460 4510008500 4030017460 4030017490 4550006540 4550006540 4030017770 4030018240 4030018140 4030017750 4030017750 4030017460 4030017460 4030017460 4030017460 4550005980 4030016950 4030017460 4030017460 4030016790 4030017460 4030016780 4030017780 4030017460 4550006250 4030017460 4550006250 4030016930 4030016930 4030016930 4030016930 4550006540 4030017760 4030018090 4030016930 4030016790 4030017700 4030017460 4030017460 4030017460 4030017460 4030017460 4030017460 4030017460 4030017460 4030017460 4030017460 4030017460 4030017460 4030017460 EEE1CS100SR ECJOEB1E102K C1608 JB 1H 103K T ECJOEB1E102K ECJOEB1E102K EEE1CA101WP ECJOEC1H150J ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEC1H330J ECJOEB1E102K TEESVA 1V 334M 8L TEESVA 1C 225M8L ECJOEB1E102K ECJOEB1E102K TEESVA 0J 156M8L ECJOEB1E102K ECJOEB1A104K ECJOEB1A104K ECJOEB1A104K ECJOEB1A104K ECJOEC1H220J ECST1CY475R EEE1CA101WP ECST1CY475R ECJOEB1E102K ECJOEB1E102K ECST1CY475R ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K EEE1CA101WP ECJOEB1E102K ECJOEB1C103K ECJOEC1H220J C1608 JB 1A 105K T ECJOEC1H150J
22. 7030007300 7030005120 7030005120 7030005120 7030005120 7030005120 7410001130 7410001130 7030003860 4030017480 4030016930 4030017460 4030017580 4030017660 4030016930 4030017460 4030017460 4030017460 4030016790 S RES S RES S RES S RES S RES S RES S RES S RES S RES S TMR S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES VAR S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S TMR S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES ERJ2GEJ 472 4 7 ERJ2GEJ 682 X 6 8 ERJ2GEJ 154 X 150 A24 E on A24 E on A24 E on A24 E on A24 E on ERJ2GEJ 182 X 1 8 kQ ERJ2GEJ 472 X 4 7 ERJ2GEJ 224 X 220 A24 E on ERJ2GEJ 472 X 4 7 A24 E on ERJ2GEJ 183 X 18 A24 E ERJ2GEJ 472 X 4 7 A24 E on TBPS1R473K475H5Q 24 ERJ2GEJ 333 X 33 A24 E ERJ2GEJ 471 X 470 A24 E ERJ2GEJ 104 X 100 A24 E ERJ2GEJ 393 X 39 A24 E ERJ2GEJ 474 X 470 A24 E ERJ2GEJ 824 X 820 A24 E ERJ2GEJ 223 X 22 A24 E ERJ2GEJ 104 X 100 A24 E ERJ2GEJ 472 X 4 7 ERJ2GEJ 105 X 1 MO ERJ2GEJ 105 X 1 MO ERJ2GEJ 225 X 2 2 TP76NO00 15F 10KA 2791 ERJ2GEJ 104 X 100 ERJ2GEJ 102 X 1 ERJ2GEJ 102 X 1 ERJ2GEJ 104 X 100 2 ERJ2GEJ 102 ERJ2GEJ 102 X ERJ2G
23. 9 1 1 6 1000 2610 1000 610 xem w 8161 56 x s a R6 33k 001 2914 8 8s 2914 0 001 620 C74 C407 0 001 1 1 1000 5960 R237 470k 2 C408 0 001 1 1 19 NJM2107F 1000 220 m 2202950 489 514 C257 0 0022 IC18 LMV324IPW gt C19 220p R228 10k ro 199 2120 146 25n yY 9081 1620 C225 47 16 3 7n y div 6620 IC15 AN6123MS 4 55 Lb 220 T 4 SET 1 LMV324IPW 10 WE 5520 d 6020 1000 01 KR 9720 9629 _1 01 6 gt a 1 18 RD12MVS1 L 378 OUT GND FI 8222 010 2501819 02 000 9222 18 27 0 29 919213 Iced 894 AWN R338 ERJ2GE JPW XP4315 R316 22k 014 a SEL NETT 1000 2 5 BS C18 LMV324IPW 1000 6 R317 47k a 5V 1000 289 0 154 VY Qa 88 R269 5 6k AW 85 R318 ERJ2GE JPW
24. CW typical EUR Low level modulation 70 100 GEN USA 85 EUR Less than 10 at 60 modulation GEN USA Less than 10 at 85 3 dB modulation EUR GEN USA GEN USA Less than 36 dBm EUR 3 conductor 2 5 d mm 140 more than 100 Double conversion superheterodyne system dst 30 05 MHz 2nd 450 kHz 0 71 pV typical IC A24 E 0 5 typical GEN USA 0 71 typical EUR 0 22 uV typical USA Less than 1 uV Less than 0 45 uV FM for weather channel More than 7 5 kHz 6 dB Less than 25 kHz 60 dB More than 60 dB AM More than 30 dB FM GEN USA More than 70 dB AM EUR 500 mW typical at 1096 distortion with an 8 O load 30 modulation GEN USA More than 40 dB at 9096 modulation EUR 3 conductor 3 5 d mm 18 8 Specifications are measured in accordance with FCC Part87 EN300 676 stated specifications are subject to change without notice or obligation SECTION 2 INSIDE VIEWS RF UNIT TOP VIEW BOTTOM VIEW C power switch Q24 HAT1024R Power amplifier Q2 RD12MVS1 Drive amplifier 03 RDO1MUS1 RF amplifier Q11 3SK293 T5V regulater circuit ALC attenator E 86 2862 04 1SV246 Q8 28C4211 D7 MA111 RX 1st mixer Q12 35 299 FM IF IC 855 regulator IC1 TA31136FN Q20 UNR9115J PLL IC VOR switch
25. RSS AMP sw 1136 _ _ 7 cus aa eee 7257 014 016 044 013 D1 08 09 LN 1 1 30 050 MHz Q12 25304 4 25304 HVU131TRF 3 A01 1 fq AGCOFF xi IF KTAL ke ANT 1 2 CDBC450CX24 DET DET xke LPF TC4W53FU 1 013 WXC 1 2804215 Q11 35 293 D29 AM FM 1 042 1SV271 FL 378 D43 MA2S077 1SV271 DETMUTE pi sw SCKSDATA FLECTRO DA2STB NIC VOLUME 5V M62363FP LO FREQ TB31207AFN Q29 Rx 77 950 106 925 MHz PCK PDATA PSTB 25 4403 131 600 133 225 2 RSSI PLL ANA iat ERROR 958 254226 BUFF dh 038 048 HVC350Bx2 T5 vec IC13 NJM2107F i 019 CR 791 L gt a28 D5 D51 96 D4 a3 UNR9215J 29 6MHz Y 2804226 2884403 18V246x2 25 4403 15 246 RDO1MUS1 TX VCO VOR LOOP MOD ALC PRE PWR D sw BUFF p Lo sw P A ATT Prive DRIVER LPF 1 RX VCO gt Q4 P ji D6 D17 MA77x2 2803357 Q2 i RD12MVS1 f Z Q5 ai T Q45 Q59 25 4226 RX VCO 2SC4211 XP1401 Lv 25 880 039 045 047 77 950 106 925 MHz Secure ue ee Eas DET MA2S304x4 AMPWR 4 AC a POWER D2 D3 1 118 000 136 975 MHz CTRL AMP DET 728 2 1 dure 1 1 015 4315 1 12 NJM2902V sw 957 XP1113 5V i E T5 056 XP4601 VOR 037 MA2S111 Hb yor Loy F T 1 i
26. TX 2SA1588 GR TE85R 28C4617 TLS 25 880 TE85R 2SA1586 GR TE85R UNR9211J TX 52 1 8 3 28 2 11 7 37 10 7 46 2 10 4 52 3 8 7 55 2 9 4 48 8 3 1 52 7 2 4 23 7 20 37 19 7 37 9 23 3 60 1 22 5 68 6 14 6 105 5 6 6 79 4 6 9 85 7 8 92 6 6 7 96 2 8 6 101 2 2 5 66 1 24 4 101 4 5 1 108 1 29 1 14 8 6 94 7 39 96 4 35 2 70 4 19 6 84 7 15 8 93 6 17 3 53 8 36 58 8 35 103 6 28 5 107 2 28 8 109 9 28 9 96 6 29 3 55 2 38 9 93 2 34 2 1 m 1 m 1 m 0 Co Co 0 0 00 0 0 00 0 00 0 0 0 00 0 00 0 0 00 0 00 0 0 C CO OU OU UU 4143409 EUR IC A24E IC A6E M Mounted side T Mounted on the Top side B Mounted on the Bottom side S Surface mount 6 2 RF UNIT RF UNIT REF ORDER H V ORDER H V NO NO DESCRIPTION M LOCATION NO DESCRIPTION LOCATION Q52 1590001980 4315 TX 104 2 4 2 6200004480 MLF1608D R82K T 87 17 6 Q56 1590001650 S TR 4601 36 4 20 7 6200009920 C2012C R10G 78 1 26 7 Q57 1590001810 S TR XP1113 TX T 83 117 6200011050 C2012C R12G 83 9 23 4 Q58 1530002920 STR 2SC4226 T1 R25 T 77 6 22 9 6200007000 ELJRE 82NG F 79 2 16 7 Q59 1530002920 STR 2SC4226 T1 R25 T 85 6 20 8 6200003280 NL 252018T 2R2J B 57 5 24 2 Q60 1530002920 STR 2SC4226 T1 R25 76 5 18 2 6200010540 C2012C 47NG B 26 7 22 1 Q61 15900
27. www icomspain com E mail icom icomspain com Icom UK Ltd Unit 9 Sea St Herne Bay Kent CT6 8LD U K Phone 44 01227 741741 Fax 44 01227 741742 URL http www icomuk co uk E mail info icomuk co uk Icom France S a Zac de la Plaine 1 Rue Brindejonc des Moulinais BP 5804 31505 Toulouse Cedex France Phone 33 5 61 36 03 03 Fax 33 5 61 36 03 00 URL http www icom france com E mail icom icom france com Asia Icom Inc 6F No 68 Sec 1 Cheng Teh Road Taipei Taiwan R O C Phone 886 02 2559 1899 Fax 886 02 2559 1874 URL http Awww asia icom com E mail sales asia icom com Icom Polska Sopot 3 Maja 54 Poland Phone 48 58 550 7135 Fax 48 58 551 0484 E mail icompolska icompolska com pl Count on us Icom Inc 14115 7 1 1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan 2004 Icom Inc
28. 28 ERJ2GE JPW 27k UNR9210J oo 8 JL 7 gt VORDET R325 ERJ2GE JPW C197 AM 0 01 5 gt gt SHIFT 45V 45V z EB Sx I as o I 11 1 ANY CR 791 184 174 175 ES 033 L59 0 821 EB n 117 R155 R306 2 4 2 21 0 224 0 224 1 25 4116 T I os 1 7 GND 0 AI a C308 0 001 1 88 Te 885 S 9 738 s g 55 154 157 104 C302 220p 8p 85 85 5 1M o AY 8 52 RSSI 4 3 AW C367 C369 I 1 7 fis e 1 1 173 104 24 057 R153 45 d t XP1113 af 58 1M E 5 z cue 1 8 88 29 me T53 2858 55 88 88 88 288 jag z gs mmie 2504403 8 8 Sac 58 os DT d Cao 2 95 a 55 0 001 2 1 8 C340 C306 25 _ ERJ3GE JPW TI 172108 1 sz 220p 8p 058 85 4 VV 1 55 E 2 1 E i 1 5 55 ok 5 5 Sz 1 35 2o Sz 38 X 8 T SIUTAEN i Bus Ii ue 160 0 821 EP14 C150 2 C359 R252 8253 w 15 Por NETS aso ERBBEUP 0 001 ERJ2GE JPW ERJ2GE JPW 1 ez 55 3 1k AW AW C315 58 BS 5 C155 R118 R116 PDATA BT 100 R340 ERJ2GEJPW 4 RAA PM E 8 88 Bas ca m p mal PSTB R282 V 195 R341 NERJ2GE JPW 5 Ries ig 560 58 58 1
29. 4 5 PORT ALLOCATIONS 4 5 1 CPU LOGIC unit IC1 Pin number Port name Outputs control signal for the 5 V regulator 1 16 Q4 Q6 Q7 010 Input port for the 30 Hz phase signal Input port for the VOR 30 Hz standard signal Outputs the bias control signal for a type of battery Input port for LIGHT switch Input port for the cloning signal Outputs the cloning signal 4 5 2 EXPANDER RF unit IC5 Pin number Description Outputs control signal to the AF out 4 Q35 Q36 for AF amplifier 1 6 5 Outputs control signal to the ALC con troller Q52 Outputs control signal to the R5V 6 RSC regulator Q20 Outputs control signal to the ANL 7 ANLC switch Q21 11 MMUT Outputs control signal for MIC mute switch Q51 port for data signal from to the DET Outputs detector mute signal to the EEPROM LOGIC unit IC7 12 MUT AM FM switch 122 pin 2 Outputs clock signal to the EEPROM 13 SHIFT Outputs shift control signal to the IC LOGIC unit IC7 VCO switch Q57 Input port for POWER switch 14 WXC Outputs AM FM WX ch select signal Input port for PTT switch High While PTT switch is pushed Input port for the PLL unlock signal Low PLL is unlocked Input port for the external DC connec tion detection Input port for the CPU reset signal to the AM FM switch IC2 p
30. 52 gen EP2 caso fe eo BS TAS 26 oo oem wd o 0 0 05 d aE 4 R37 C45 ANY 8 82 0 001 25 4211 ANY 2 _ lt C31 0 001 eg 88 R38 Rasa os 07 82 33k g MA111 MA 4 Be 23 52 Ll RX OV C35 2 630 728 5 5 38 388 56p 85 28 39p 783 Voz 58 os R327 1 5k Q5 a 3 EL 25 4211 04 03 06 2583357 VY E RDO1MUS1 2564403 L11 47n 88 061 D UNR9210J 5 Sene 911 RSC R5S 855 gt S E 858 PS ie a o onn 1 1 lt IC A24 E gt only T I 1 I VORON Hi 8 5 85 55 5 wxe 1 Q19 eus Tes Tes 186 0 221 185 0 224 ES H UNR9215J 47 R80 it LTO 2 ET 4 C98 C401 9p C399 24 8 2 D18 R99 gt 8 BS 2501819 0 001 MA785 47k a 2 a 88 2828 258 N E oa gt R87 8 5 EE ERJ2GE JPW ys 9 e AN eo R102 R101 C104 11 6 100k 330k ais oot 915 4 1 2 AMV AW 2564211 2564215 2564215 R82 100 EEG MIXIN 2 TC4W53FU 100 001 GND x 1 40 N REC saz 8 w 109 55 55 RSSI 1 2 3 14 55 Er IFOUT DETMUTE gg 4 58 i 5 QUAD Bue 58 55 ET 8ST 35 Es f AFOUT Re R274 R73 5 921 HT HT Dm gt as 470
31. 6 99 8 8 5 101 4 9 8 109 5 32 5 107 7 32 5 18 1 10 88 7 35 99 38 4 97 9 35 8 64 6 18 6 71 4 16 4 72 8 17 8 77 6 14 9 79 9 15 3 78 9 15 3 82 17 8 82 5 16 5 83 6 17 7 95 7 17 8 83 4 28 8 87 4 28 2 92 3 26 9 42 1 34 4 43 5 30 3 52 3 29 5 58 2 36 7 54 9 36 7 59 7 37 7 61 35 2 60 9 31 6 57 6 31 1 59 9 6 5 61 1 10 5 62 9 10 5 108 8 21 1 105 4 18 8 103 5 14 9 107 4 18 8 110 5 25 4 110 9 27 2 110 6 30 4 111 3 28 8 106 1 27 104 9 29 5 98 6 34 2 97 3 34 10 7 9 3 10 7 7 2 106 32 5 104 2 32 5 94 8 29 54 9 35 1 109 1 10 9 107 10 2 106 6 8 9 105 1 10 2 103 8 10 5 104 6 8 9 111 3 8 8 110 9 3 32 2 13 1 53 7 40 9 57 7 38 52 7 40 4 49 6 38 9 86 33 9 91 2 34 2 94 8 34 2 96 4 4 103 6 6 8 92 8 2 5 35 5 31 94 10 5 91 1 7 88 4 9 5 90 6 11 4 110 5 11 9 109 7 12 105 4 19 8 105 21 1 R246 7030005030 R247 7030005240 R248 7030005220 R249 7030005220 R250 7030005530 R251 7030005160 R252 7030010040 R253 7030010040 R254 7030005040 R256 7030008370 R258 7030005220 R260 7030005220 R262 7030008370 R265 7030005000 R266 7030005070 R267 7030009290 R268 7030009290 R269 7030009290 R270 7030008290 R271 7030005040 R272 7030005040 R273 7030005040 R274 7030010040 R275 7030005000 R280 7030004980 R281 7030004980 R282 7030004980 R283 7030005210 R285 7030005240 R290 7030004980 R291 7030004980 R293 7030010010 R294 7030005120 R295 7030010010 R296 7030010010 R297 7030005050 R306 7030005600 R307 7030005070
32. 7030005570 ERJ2GEJ 820 X 82 64 6 14 4 7030005050 ERJ2GEJ 103 X 10 63 1 15 6 L1 6200008280 S COL 0 30 1 7 7TL 50N 12 1 36 9 7030007300 ERJ2GEJ 332 X 3 3 54 6 1 5 12 6200008300 S COL 0 35 1 6 9TL 65N 17 6 32 8 7030008300 ERJ2GEJ 184 X 180 B 26 7 18 1 L3 6200008300 S COL 0 35 1 6 9TL 65N T 18 5 28 9 7030005000 ERJ2GEJ 471 X 470 Q B 24 1 26 9 L4 6200001520 S COL MLF2012D R82K T B 20 23 5 7030005110 ERJ2GEJ 224 X 220 B 28 4 24 4 L5 6200008400 S COL 0 35 1 6 6TL 36N T 18 18 1 7030005080 ERJ2GEJ 823 X 82 B 36 6 21 5 L6 6200010240 S COL 0 40 0 8 2TL T 20 6 14 2 7030005240 ERJ2GEJ 473 X 47 36 22 8 L7 6200008400 S COL 0 35 1 6 6TL 36N 25 69 7030005240 ERJ2GEJ 473 47 29 2 20 18 6200005710 S COL ELJRE 27NG F T 32 9 15 3 7030005090 ERJ2GEJ 104 X 100 B 34 9 24 5 L10 6200010010 S COL C2012C 39NG T 35 3 17 2 7030010010 ERJ2RKF 334 X 330 B 36 27 6 L11 6200005740 S COL ELJRE 47NG F T 39 6 14 7030004970 ERJ2GEJ 470 X 47 Q B 40 5 26 2 L12 6200007000 S COL ELJRE 82NG F T 46 1 13 9 7030004980 ERJ2GEJ 101 X 100 0 B 37 1 25 9 L13 6200006980 S COL ELJRE R10G F 55 5 12 2 7030005110 ERJ2GEJ 224 X 220 46 4 23 6 114 6200002190 S COL MLF2012A 4R7K T 59 1 14 4 7030005110 ERJ2GEJ 224 X 220 47 3 25 6 115 6200008170 S COL 0 35 1 6 8TL 54N T 21 1 25 1 7030005110 ERJ2GEJ 224 X 220 kQ B 50 2 25
33. 9 18 5 47 5 36 8 92 8 8 2 94 3 3 4 97 4 4 95 1 2 1 87 6 6 4 96 1 2 6 110 5 14 1 95 8 10 5 113 1 21 5 110 5 15 9 101 7 30 5 69 8 36 5 73 8 35 4 73 1 32 8 69 8 33 8 69 8 34 7 73 2 36 4 69 8 35 6 62 6 37 3 61 35 4 61 33 5 61 9 32 4 61 4 31 5 1 1 1 UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ M Mounted side T Mounted Top side Mounted on the Bottom side 6 5 S Surface mount RF UNIT RF UNIT DESCRIPTION ORDER y NO DESCRIPTION LOCATION 102 4 22 8 102 8 23 3 104 8 23 4 104 1 23 5 92 5 15 2 112 22 4 112 23 3 110 3 23 3 112 22 4 LOCATION 66 32 4030017460 ECJOEB1E102K 65 6 33 4030017460 ECJOEB1E102K 66 34 4030017460 ECJOEB1E102K 65 6 35 4030017460 ECJOEB1E102K 73 8 37 4 4030017460 ECJOEB1E102K 65 4 39 4030017460 ECJOEB1E102K 66 38 4030017460 ECJOEB1E102K 69 9 37 4 4030017460 ECJOEB1E102K 71 3 39 2 4030017460 ECJOEB1E102K 107 6 8 9 4030017460 ECJOEB1E102K 105 6 8 9 4030017420 ECJOEC1H470J 107 8 19 8 4030006860 C1608 JB 1H 102K T 34 1 21 6 4550006950 ECSTOJX476R 19 4 8 7 4030017460 ECJOEB1E102K 24 7 7 9 81 16 4 79 9 23 7 6450000870 2711 01 020 76 5 27 3 6450001680 HSJ1122 010010 83 7 28 4 6510021900 BMO2B ASRS TF 113 5 33 6 76 6 20 1 6450001060 HSJ1493 01 010 85 8 16 8 6510024560 5540245 68 36 2 78 7 24 7 85 7 22 6 76 6 21 1 2260002840 SKHLLFAO10 84 8
34. A24 E 4030017460 ECJOEB1E102K A24 E 4030017460 ECJOEB1E102K A24 E 4550000530 TEESVA 1V 104M8L A24 E 4550003080 TEESVA 1A 335M8L A24 E 4550000530 TEESVA 1V 104M8L A24 E 4550000530 TEESVA 1V 104M8L A24 E 4550000530 TEESVA 1V 104M8L A24 E 4550000530 TEESVA 1V 104M8L A24 E 4030017460 ECJOEB1E102K A24 E 4550000530 TEESVA 1V 104M8L A24 E 4030017780 ECJOEB1E472K A24 E 4030017460 ECJOEB1E102K A24 E 4550006350 TEESVB2 1A 226M8L 24 4030016790 ECJOEB1C103K A24 E 4030016930 ECJOEB1A104K A24 E 4030017460 ECJOEB1E102K A24 E 4550006250 TEESVA 1A 106M8L A24 E 4550006250 TEESVA 1A 106M8L 4030017480 C1608 JB 1A 474K T 4030017480 C1608 JB 1A 474K T 4030017480 C1608 JB 1A 474K T 4030017460 ECJOEB1E102K 4030016930 ECJOEB1A104K 4030017460 ECJOEB1E102K 4030016930 ECJOEB1A104K 4030016930 ECJOEB1A104K 4030016930 ECJOEB1A104K 4030016790 ECJOEB1C103K 4030016930 ECJOEB1A104K 4030016790 ECJOEB1C103K 4030016790 ECJOEB1C103K 4030016930 ECJOEB1A104K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017440 ECJOEC1H221J 4030017440 ECJOEC1H221J 4030017440 ECJOEC1H221J 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017430 ECJOEC1H101J 4030017430 ECJOEC1H101J 4030017430 ECJOEC1H101J 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017430 ECJOEC1H101J 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K
35. ALC sons bm TB31207AFN UNR9215J AN IC A24 A24E onl 915 6123 8 1 19 NJM2107F 014 25018194 AM FM switch 1 2 TC4W53FU Electric volume 17 M62363FP 650C LOGIC UNIT SN 5 LED drivers VOR circuit Q8 Q9 UNR9213Jx2 il IC A24 A24E only CPU IC1 LPD78F0338GC 9EB GEM 2 132 P RESET IC i 25 4211 IC2 BD5245G Clock oscillator X1 CR 747 9 8304 MHz EEPROM IC7 S 24CS64A01 T8T1 G 5V regulator 1 16 S 812C50BMC C5E G HER CPUS5V regulator IC3 XC6202P502PR SECTION 3 DISASSEMBLY INSTRUCTIONS REMOVING CHASSIS PANEL 2 Unsolder 1 point 9 D Remove the Jack A 3 Unscrew 2 nuts D 2 Remove VOL knob and DIAL knob 4 Unscrew screws O and remove the LOGIC unit from 3 Unscrew the nut 0 the RF unit 4 Unscrew 3 screws 5 Disconnect the connector from J4 and remove the LOGIC RF unit from the Front panel LOGIC RF unit LOGIC unit RF unit REMOVING THE RF UNIT REMOVING THE LOGIC UNIT S points th nscrew 6 screws D e Tain Seal Unscrew 2 screws and remove the uni
36. JACKDET CHGVH EXTREGC Q36 XP1501 R142 MCR10 JPW R148 1 R147 12k Q35 2581201 186 TX OV RX 7 X 6 7V sideTone NIM OE DETOO UNLK DA2STB C127 0 001 Q26 UNR9211J D23 133 R109 10k 051 UNR9211J 100 R226 C245 100k 0 0047 025 6 2581132 E TX67V Ls ui RX RX OV LVIN HV 019 880601 40 M C120 0 001 R108 022 TX 6 8V MA2S728 R106 100k C128 0 001 7 024 HAT1024R CHGIH C280 0 001 C281 0 001 3 3 Q39 UNR9213J C119 0 001 C269 0 001 C279 0 001 C282 0 001 L C270 0 001 1 C278 0 001 L C283 0 001 0271 0 001 C284 0 001 C264 0 001 C276 0 001 L C273 0 001 3 3 R197 18 R196 15 Q40 2SA1588 C272 0 001 C263 0 001 C287 0 001 R104 27 C291 0 001 R189 ik CHGC R187 R184 ERJ2GE JPW 041 25 4617 032 MA2S111 R181 270 R275 470 R188 56 R182 470 C289 0 001 oljolololo o o 50 50 50 50 50 50 50 50 0 ih C292 0 001 ih C288 0 001
37. number 6 The Choose Destination Location will appear Then click Next to install the software to the destination folder e g C Program Files lcom CS A24 7 After the installation is completed the InstallShield Wiz ard Complete will appear Then click Finish 8 Eject the CD 9 Program group CS A24 appears in the Programs folder of the start menu and CS A24 icon appears on the desk top screen CAUTION BACK UP the originally programmed memory data in the transceiver before starting the ad justment 1 2 5 1 100 10mV to 10 V 4 0 More than 5 W Frequency range Distortion meter Measuring range AC millivoltmeter Measuring range External speaker Input ENTERING ADJUSTMENT MODE 1 Turn transceivers power off Connect IC A24 A6 and with the optional OPC 478 U 2 Right click the CS 24 s icon on the desktop and select the Properties then CS 24 propaties window appears 3 Type C Program File lcom CS A24 CSA24 exe expert on the Target box and double click CS A24 s icon then CS A24 window appears 4 Click EXPERT button then Expert window appears Select Enable the Adjust Mode box and then cloning 5 Turn power OFF Disconnect 478 from the trans ceiver 6 Push and hold CLR and SQL then turn power ON OPERATING ON THE ADJUSTMENT MODE Store the adjustment value ENT Change the adjust
38. pres HB 12 8 N CPU 121 pin 3 Id Su ERR MTM 2 signal to the CPU IC1 pin 28 4 2 TRANSMITTER CIRCUITS 4 2 1 MICROPHONE AMPLIFIER CIRCUIT RF UNIT The microphone amplifier circuit amplifies audio signals with 6 dB octave pre emphasis characteristics from the micro phone to a level needed for the modulation circuit AF signal from the internal external microphone are applied to the microphone amplifier IC15 IC19 via the microphone mute switch Q51 and the microphone volume controller 17 pins 15 16 The amplified signals are applied to the AF controller IC17 pins 13 14 and are then applied to buffer amplifier IC18 pins 1 2 Amplified signals passes through the low pass filters IC18 pins 4 5 8 10 and are then applied to the modulation circuit D5 D51 4 2 2 MODULATION CIRCUIT RF UNIT The modulation circuit modulates the TX LO signal from the VCO RF signal using the microphone audio signal While in transmission the LO signal from the VCO circuit Q58 D38 D48 is amplified at the buffer amplifiers Q28 Q60 and passed through the LO switch D6 This signal is then applied to the AM modulator D5 D51 The buffer amplifier Q6 amplifies the LO signal with a gain controlled by an AF signal to make low level modulation 4 2 3 DRIVE POWER AMPLIFIER CIRCUITS RF UNIT The drive amplifier circuit amplifies the tran
39. the demodulated AF sig nals to drive a speaker AF signals from the AM detector Q18 While in AM mode or IF IC IC1 pin 9 While in FM mode are applied to the AM FM switch IC2 pin 6 or 7 The output signals from pin 1 are applied to the AF amplifier IC18 pins 1 2 and then pass through the low pass filter IC18 pins 5 7 8 10 The filtered signals are amplified at the OP amplifier IC18 pins 13 14 and are then applied to the AF power amplifier IC6 pin 4 to obtain the specified audio level after being passed through the electric volume IC17 pins 21 22 The amplified AF signals are applied to the internal speaker SP1 via the SP jack J5 when no plug is connected to the jack 4 1 6 SQUELCH CIRCUIT RF AND LOGIC UNITS A squelch circuit cuts out AF signals when no HF signals are received By detecting noise components in the AF sig nals the squelch switches the AF mute switch The AGC signal from the AGC amplifier Q10 is amplified again at RSSI amplifier IC13 and is then applied to the CPU LOGIC unit IC1 pin 29 as the RSSI signal 2ND IF AND DEMODULATOR CIRCUIT The CPU analyzes the noise condition and outputs the con trol signal to the expander IC IC5 The expander IC IC5 pin 4 outputs the squelch control signal as the signal The signal is applied to the AF out control circuit Q36 Q35 to control the power amplifier IC6 and cut the AF signal line 4 1 7 AG
40. 000160 7030000170 7030005090 7030005120 7030006610 7030005240 7030007350 7030005090 7030005170 7030005240 7030005240 7030005240 7030000070 7030005000 7030005110 7030005050 7030005060 7030005220 7030003680 7030005120 7030005050 7030010040 7030003800 7030010040 7030005090 7030005170 7030005240 7030005240 7030005240 7030005000 7030005120 7030005120 EUR IC A24E IC A6E ERJ2GEJ 152 X 1 5 ERJ2GE JPW ERJ2GEJ 683 X 68 ERJ2GEJ 273 X 27 ERJ2GEJ 102 X 1 ERJ2GEJ 561 X 560 ERJ2GEJ 563 X 56 ERJ2GEJ 101 X 100 ERJ2GEJ 224 X 220 ERJ2GEJ 563 X 56 kQ ERJ2GEJ 472 X 4 7 kQ ERJ2GEJ 682 X 6 8 ERJ2GEJ 473 X 47 kQ ERJ2GEJ 274 X 270 kQ ERJ2GEJ 334 X 330 ERJ2GEJ 104 X 100 10 2 27 270 MCR10EZHJ 27 270 ERJ2GEJ 104 X 100 MCR10EZHJ 150 151 MCR10EZHJ 18 180 ERJ2GEJ 103 X 10 ERJ2GEJ 103 X 10 ERJ2GEJ 271 X 270 0 ERJ2GEJ 223 X 22 ERJ2GEJ 470 X 47 Q ERJ2GEJ 122 X 1 2 ERJ2GEJ 150 X 15 ERJ2GEJ 471 X 470 Q ERJ2GEJ 563 X 56 kQ ERJ2GEJ 471 X 470 Q ERJ2GEJ 222 X 2 2 ERJ2GEJ 223 X 22 ERJ2GEJ 102 X 1 ERJ2GEJ 561 X 560 Q ERJ2GEJ 100 X 10 ERJ2GE JPW MCR10EZHJ JPW 000 ERJ2GEJ 682 X 6 8 ERJ2GE JPW ERJ2GEJ 123 X 12 ERJ2GEJ 102 X 1 ERJ2GEJ 103 X 10 ERJ2GEJ 104 X 100 ERJ2GEJ 105 X 1 ERJ2GEJ 105 X 1 MO ER
41. 03270 STR UNR9210J TX B 41 7 18 7 6200003640 MLF1608E 100K T T 84 6 25 6 6200003640 MLF1608E 100K T T 81 26 3 6200003640 MLF1608E 100 97 8 31 5 01 1710000870 5 010 HVU131TRF 17 9 24 7 6200003540 MLF1608D 22 101 22 8 02 1790000660 S DIO MA728 TX B 15 2 21 6 6200003540 MLF1608D R22K T B 100 4 19 2 D3 1790000660 S DIO MA728 B 15 2 16 8 6200004780 MLF1608A 1R5K T T 68 3 19 1 D4 1750000460 S DIO 1SV246 TL T 51 3 12 2 6200003960 MLF1608A 1ROK T B 68 9 9 1 D5 1750000460 S DIO 1SV246 TL T 64 1 10 7 6200004600 MLF1608D R15K T 70 11 8 06 1790000620 S DIO 64 8 16 5 6200004600 MLF1608D 15 70 8 9 9 07 1790001280 5 010 111 TX 529 46 6200008070 MLF1608E 6R8K 6 80 B 63 2 25 4 D8 1710000870 5 010 HVU131TRF T 24 27 8 6200004920 MLF1608A 2R2K T 99 2 23 5 09 1710000870 5 010 HVU131TRF 22 4 26 1 6200003540 MLF1608D R22K T B 84 5 10 7 D13 1720000730 S VCP MA2S30400L 28 4 22 8 6200003540 MLF1608D R22K T B 81 6 10 4 D14 1720000730 S VCP MA2S30400L 45 2 23 7 D15 1720000730 S VCP MA2S30400L B 50 6 22 9 D16 1720000730 S VCP MA2S30400L 53 9 22 9 7030000220 MCR10EZHJ 47 470 18 7 21 1 017 1790000620 S DIO 62 4 18 7 7030005090 ERJ2GEJ 104 100 56 1 9 5 018 1750001120 5 010 MA785 TX 99 3 9 9 7030005090 ERJ2GEJ 104 X 100 56 1 82 019 1750000540 5 010 RBO
42. 1 L16 6200008280 S COL 0 30 1 7 7TL 50N T 24 9 24 3 7030005110 ERJ2GEJ 224 X 220 kQ B 53 8 25 9 117 6200003550 S COL MLF1608A 4 7 21 8 20 8 7030005050 ERJ2GEJ 103 X 10 60 19 6 118 6200007730 LQW2BHN39NJ01L 26 6 25 4 7030004980 ERJ2GEJ 101 X 100 0 B 57 1 21 1 121 6200008090 LQW2BHN68NJ01L 40 5 23 6 7030004980 ERJ2GEJ 101 X 100 Q 63 5 22 4 122 6200007760 S COL LQW2BHN82NJ01L 47 9 22 4 7030005000 ERJ2GEu 471 X 470 60 1 24 5 123 6200008090 2 68 011 52 2 22 4 7030008290 ERJ2GEJ 183 X 18 kQ 70 1 12 6 124 6200002750 S COL MLF2012A 2R2K T B 62 1 20 5 7030005120 ERJ2GEJ 102 X 1 T 68 3 12 6 138 6200005510 S COL ELJND R27J F B 69 6 16 7 7030005030 ERJ2GEJ 152 X 1 5 kQ T 70 8 15 4 L42 6200002190 S COL MLF2012A 4R7K T B 85 218 7030007570 ERJ2GEJ 122 X 1 2 kQ 63 3 3 9 144 6200003960 S COL MLF1608A 1ROK T T 71 5 19 7 7030005000 ERJ2GEJ 471 X 470 0 689 22 145 6200008300 S COL 0 35 1 6 9TL 65N T 15 6 36 6 7030005600 ERJ2GEJ 273 27 7322 146 6200008480 S COL 0 30 1 4 5TR 25N T 17 8 11 4 7030005090 ERJ2GEJ 104 100 75 5 4 9 150 6200002040 S COL NL 252018T 101J B 81 9 8 1 7030005120 ERJ2GEJ 102 1 B 75 3 6 7 L51 6200002040 S COL NL 252018T 101J B 90 7 9 2 7030007290 ERJ2GEJ 222 2 2 103 4 7 3 152 6200003550 S COL MLF1608A 4R7K T B 24 247 7030005080 ERJ2G
43. 16 8 2260002840 SKHLLFAO10 82 3 22 3 80 6 22 2 82 5 20 8 0910058762 B 6285B 78 9 20 2 6910014640 220125221 78 6 17 9 6910014640 MPZ20128221A T 83 3 4 8 6910014640 MPZ20128221A T 80 8 2 4 6910014730 MPZ20128331A T 61 24 5 6910014730 MPZ20128331A T 44 1 23 3 6910014730 MPZ20128331A T 42 6 26 2 6910014730 MPZ20128331A T 417 27 5 6910014730 MPZ20128331A T 29 5 21 1 6910014730 MPZ20128331A T 102 5 11 6 6910015370 ACZ1005Y 102 T 103 8 21 3 6910015370 ACZ1005Y 102 T 20 5 2 1 6910014690 MPZ1608S221A T 34 4 1 6 6910014640 MPZ20128221A T 87 5 22 5 85 28 1 85 5 24 2 76 2 26 76 4 28 6 78 3 28 8 91 2 15 7 79 5 11 1 89 3 6 7 5 37 4 15 5 H V 49 6 10 7 DESCRIPTION LOCATION 52 9 10 5 88 9 11 9 6510022460 CNR BNC R162 94 3 10 6 77 9 10 3 76 5 4 9 2510001092 SP 036D0801B FG 98 1 18 6 99 2 30 5 43 7 27 5 8900009640 963 91 1 6 87 4 9 5 35 2 21 35 5 25 8 98 1 22 5 99 9 22 1 100 4 20 9 99 3 19 99 2 20 7 68 1 24 84 5 23 4 92 5 16 22 4 7 83 1 1 2 58 6 16 1 66 8 8 5 74 4 9 9 69 1 13 2 71 8 12 4 71 8 9 8 87 1 16 8 98 320 8 85 2 12 1 84 11 7 82 8 11 9 81 6 11 4 80 4 11 9 98 4 33 97 1 33 75 1 19 8 75 1 18 9 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 403001
44. 1810 4030011810 4030016930 4030017430 4030017460 4030017460 EUR IC A24E IC A6E C1608 JB 1H 102K T C1608 JB 1H 102K T ECST1VY105R ECJOEB1E102K ECJOEB1E102K ECJOEC1H390J C1608 JB 1H 102K T ECJOEB1E102K ECJOEB1E102K ECJOEC1H100C ECJOEC1H560J ECJOEB1E102K TEESVA 1A 106M8L ECST1CY475R ECJOEB1E102K ECJOEB1E102K ECJOEC1H080C ECJOEC1H180J ECJOEB1E102K ECJOEC1H390J ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K TEESVA 1C 225M8L TEESVA 1V 104M8L ECJOEB1E102K ECJOEB1A104K ECJOEC1H220J ECJOEC1H390J ECJOEC1H180J ECJOEB1E102K ECJOEB1E102K ECJOEC1H070C ECJOEC1H390J ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K TEESVA 1A 106M8L ECJOEB1E102K ECJOEC1H030B ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEC1H010B ECJOEC1H050B ECJOEC1H020B ECJOEC1H010B ECJOEC1H470J ECJOEC1H050B ECJOEC1H060C ECJOEC1H101J ECJOEC1H101J ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEC1H100C ECJOEC1H010B ECJOEB1E102K ECJOEB1C103K ECJOEB1C103K ECJOEB1C103K ECJOEC1H680J ECJOEB1E102K ECJOEB1E102K ECJOEB1C103K ECJOEB1A104K ECJOEB1C103K ECJOEB1E102K ECSTOJX476R ECJOEB1C103K ECJOEB1E102K TEESVA 1V 474M8L ECJOEB1A104K ECJOEB1C103K ECJOEB1C103K ECJOEB1A104K ECJOEB1C103K ECJOEB1A104K ECJOEB1A104K ECJOEB1C103K ECJOEB1A104K ECSTOJX476R ECJOEB1C103K C1608 JB 1A 224K T C1608 JB 1A 224K T ECJOEB1A104K ECJOEC1H101J ECJOEB1E102K ECJOEB1E102K
45. 5 20 1 10 20 9 10 20 8 7 22 1 8 7 20 3 7 5 21 7 7 4 20 16 9 3 5 3 10 9 24 2 10 3 24 2 9 4 26 1 8 7 22 6 9 4 13 2 12 2 66 5 24 1 5 2 22 9 5 2 20 6 26 2 5 5 50 1 8 37 7 7 1 37 7 4 9 41 3 5 9 41 3 4 9 47 6 5 7 48 7 48 4 8 54 6 9 1 51 3 37 5 54 3 36 4 55 7 34 2 55 4 32 1 62 7 6 60 5 8 2 43 3 4 9 65 5 28 2 66 5 23 1 26 1 6 9 16 1 10 9 4 2 12 2 57 4 19 1 55 1 15 1 57 8 20 3 53 4 12 3 57 8 11 5 80 39 4 80 5 40 9 51 9 7 1 64 7 41 5 63 1 38 7 73 42 6 55 23 2 73 8 36 1 52 2 9 1 73 41 7 64 7 42 4 64 7 40 6 64 7 39 1 64 7 36 8 51 4 28 52 4 30 6 72 7 4 2 39 1 9 9 51 3 10 3 76 5 24 4 57 4 15 5 57 8 13 4 50 7 43 2 77 4 23 4 77 1 27 4 54 6 5 51 4 3 6 EUR IC A24E IC A6E M Mounted side T Mounted on the Top side B Mounted on the Bottom side S Surface mount LOGIC UNIT LOGIC UNIT ORDER DESCRIPTION LOCATION 77 4 3 1 80 5 8 8 65 27 2 65 9 19 8 68 7 21 1 74 9 3 63 4 9 65 8 12 7 72 9 24 7 15 38 7 58 8 10 5 16 9 19 7 21 2 21 2 5 7 31 5 7 8 31 5 12 31 7 10 4 31 1 15 9 23 7 13 8 21 15 21 9 15 6 31 4 8 1 25 6 9 1 18 5 9 1 16 4 23 8 20 1 23 8 18 15 3 16 7 12 6 17 2 15 3 15 1 15 6 8 1 12 3 9 7 25 4 9 9 25 3 5 5 20 1 8 8 19 3 11 1 67 4 27 2 36 13 4 36 6 12 1 36 6 10 8 64 6 25 6 RF UNIT 47 2 4 4 ORDER Hy 48 2 4 4 DESCRIPTION LOCATION 49 2 4 4 1110003490 TA31136FN D EL 70 8 5 5 39 5 4 7 1130006220 TC4W53
46. 5 20 5 C1608 CH 1H 150J T T 15 2 19 2 C1608 1H 010B T T 15 8 15 1 C1608 CH 1H T 14 2 16 5 ECJOEF1C104Z 49 3 8 2 C1608 CH 1H 221 T 18 1 14 3 ECJOEB1E102K 142 202 C1608 CH 1H 470J T T 227 4 ECJOEB1E102K B 53 9 8 2 M Mounted side Mounted on the side Mounted on the Bottom side 6 4 S Surface mount RF UNIT ORDER NO DESCRIPTION H V LOCATION 4030006860 4030006860 4550007000 4030017460 4030017460 4030017670 4030006860 4030017460 4030017460 4030017620 4030017500 4030017460 4550006250 4550006540 4030017460 4030017460 4030017600 4030017390 4030017460 4030017670 4030017460 4030017460 4030017460 4030017460 4030017460 4550002980 4550000530 4030017460 4030016930 4030017400 4030017670 4030017390 4030017460 4030017460 4030017590 4030017670 4030017460 4030017460 4030017460 4550006250 4030017460 4030017360 4030017460 4030017460 4030017460 4030017340 4030017380 4030017350 4030017340 4030017420 4030017380 4030017580 4030017430 4030017430 4030017460 4030017460 4030017460 4030017460 4030017460 4030017620 4030017340 4030017460 4030016790 4030016790 4030016790 4030017510 4030017460 4030017460 4030016790 4030016930 4030016790 4030017460 4550006950 4030016790 4030017460 4550003250 4030016930 4030016790 4030016790 4030016930 4030016790 4030016930 4030016930 4030016790 4030016930 4550006950 4030016790 403001
47. 52 58 NTCG16 4LH 473KT B 66 3 6 2 ERJ2GEJ 222 X 2 2 42 9 23 2 ERJ2GE JPW B 75 3 14 6 MCR10EZHJ JPW 000 B 66 3 26 6 ERJ2GEJ 223 X 22 T 100 9 13 5 ERJ2GEJ 473 X 47 T 98 4 13 1 ERJ2GE JPW T 99 7 12 6 NTCG16 4LH 473KT T 102 13 9 ERJ2GEJ 332 X 3 3 T 30 9 16 NTCG16 4LH 473KT T 29 2 16 1 ERJ2GEJ 273 X 27 T 30 6 17 6 ERJ2GEJ 272 X 2 7 T 30 1 18 9 ERJ2GE JPW B 88 9 14 7 ERJ2GEJ 104 X 100 T 58 2 17 4 ERJ2GEJ 152 X 1 5 T 59 2 18 4 NTCG16 4BH 332KT T 60 3 16 NTCG16 4BH 332 T 60 3 17 3 ERJ2GEJ 101 X 100 0 T 60 8 18 4 ERJ2GEJ 564 X 560 T 42 4 15 4 ERJ2GE JPW T 42 4 16 4 ERJ2GEJ 563 X 56 39 7 17 1 ERJ2GEJ 101 X 100 0 571 22 ERJ2GEJ 680 X 68 58 3 21 6 ERJ2GEJ 680 X 68 73 1 9 4 ERJ2GE JPW T 49 8 18 2 ERJ2GE JPW B 88 3 19 3 ERJ2GE JPW B 88 3 20 2 ERJ2GE JPW 88 3 21 4 ERJ8GEYJ JPW B 83 7 31 4 ERJ8GEYJ JPW 81 5 21 9 ERJ3GE JPW V B 83 7 24 8 ERJ3GE JPW V B 86 9 13 2 JPW V B 89 3 16 8 ERJ2GEJ 100 X 10 0 387 25 C1608 CH 1H 220J T 14 322 C1608 CH 1H 070D T T 18 5 34 9 C1608 CH 1H 270J T T 14 3 29 7 C1608 CH 1H 030C T T 16 3 29 C1608 CH 1H 180J T T 14 4 27 1 C1608 JB 1H 102 16 3 26 3 C1608 JB 1H 102 B 17 9 23 8 C1608 JB 1H 102K T T 18 9 21 9 C1608 CH 1H 010B T T 16 5 21 9 C1608 CH 1H 010B T T 13 9 21 9 C1608 CH 1H 150J T T 16
48. 6OL 40 25 B 101 34 1 7030005060 ERJ2GEJ 333 33 50 3 8 2 020 1790000670 5 010 5 07 03 B 113 24 4 7030005060 ERJ2GEJ 333 33 14 5 15 1 021 1790000860 S DIO MA133 TX 111 4 32 2 7030008280 ERJ2GEJ 271 X 270 B 16 1 19 2 D22 1790001240 S DIO MA2S728 TX B 187 74 7030008280 ERJ2GEJ 271 X 270 Q B 16 1 18 2 D23 1790000860 S DIO MA133 TX B 98 9 40 4 7030005240 ERJ2GEJ 473 X 47 B 15 7 28 1 D27 1790001280 S DIO MA111 TX 91 4 36 7 7030005050 ERJ2GEJ 103 X 10 14 2 19 2 029 1750000530 5 010 1SV271 23 6 22 6 7030005040 ERJ2GEJ 472 4 7 51 6 10 2 030 1750000940 5 010 155400 TE61 T 94 7 34 1 7030005240 ERJ2GEJ 473 X 47 kQ 549 82 031 1750000940 S DIO 155400 TE61 12 4 8 7 7030005070 ERJ2GEJ 683 X 68 54 3 9 5 032 1790001250 5 010 25111 109 2 26 2 7030005220 ERJ2GEJ 223 X 22 33 2 19 8 036 1790001250 5 010 MA2S111 TX 48 38 5 7030009200 ERJ2GEu 390 X 39 T 32 9 16 7 D37 1790001250 5 010 MA2S111 TX 36 5 22 9 7030005060 ERJ2GEJ 333 33 31 9 16 7 038 1750000710 HVC350BTRF 81 6 28 1 7030009290 ERJ2GEJ 562 X 5 6 39 3 18 3 039 1720000730 S VCP MA2S30400L 87 1 26 2 7030004990 ERJ2GEu 221 X 220 39 6 15 1 040 1750000530 5 010 1SV271 82 2 2 1 7510001660 NTCG16 4LH 473KT 41 16 1 D41 1750000530 5 010 1 271
49. 7460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030007160 C1608 CH 1H 181J T 4030007090 C1608 CH 1H 470J T 4030017460 ECJOEB1E102K 4030017440 ECJOEC1H221J 4030017600 ECJOEC1H080C 4030017600 ECJOEC1H080C 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017600 ECJOEC1H080C 4030017650 ECJOEC1H270J 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017650 ECJOEC1H270J 4030017550 ECJOEC1H1R5B 4030017550 ECJOEC1H1R5B 4030017530 ECJOEC1HOR5B 4030017460 ECJOEB1E102K 4030016930 ECJOEB1A104K 4030016930 ECJOEB1A104K 4030016790 ECJOEB1C103K 4030017590 ECJOEC1H070C 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030016930 ECJOEB1A104K 4030018860 ECJOEBOJ105K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017600 ECJOEC1H080C 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017640 ECJOEC1H150J 4030017640 ECJOEC1H150J 4030017440 ECJOEC1H221J 4030017460 ECJOEB1E102K 4030016930 ECJOEB1A104K 4030016930 ECJOEB1A104K 4030011600 C1608 JB 1E 104K T 4030009000 C2012 JB 1C 224K T 4030018890 ECJOEBOJ224K 4030012600 C2012 JB 1A 105M T 4030012600 C2012 JB 1A 105M T 4030012600 C2012 JB 1A 105M T 4030016930 ECJOEB1A104K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017400 ECJOEC1H220J 4030016790 ECJOEB1C103K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017690 ECJOEC1H121J 4030017410 ECJOEC1H240J 4030017700 ECJOEC1H151J 4030017610 ECJOEC1H090C 4030017680 ECJOEC1H820J 4030017460 ECJ
50. 9119 t 8 T E 58 52 z T 10018978 xv 5 m m 5 0 E AW MR 52 ro 100011612 1 T ik 7 iol 52 as 8 T iol 15 sls m x T 100015 6 964 8718 vod T 0001 EIS T 51 as 100061 T 5 5 5 5 5 4028 g 22 0219 86 16d 7 10001 hzo 8 mmk wwv T oi 10001 55 5 198 8 2 0001 8 z8 58T 58 E 852 E 85 5 T ES t Tool hooo 88 85 cd 001 1 T iol PANA 5 5 0001 g 5 55 T door 8 xo 92 9 zou z ut S AN lt 6 lt lt m Selsk ess 555 gt 90 200 8 887 58 8 Z808VW 1d T gt t 44 9 3 8 E ES gt 1 85 55 5 esa 2 s 52 5 8 5 5 2 8 x 081 100 z z S 5 _ 5 no UY um E asa ST 229 g os 58 58 eo o 5 88 mmi 8 45 ez 8 85 1000 z 5 we 160 5 LE PN
51. ARD LAYOUTS 9 1 LOGIC UNIT TOP VIEW m f 45 1 T 40 1 PWR F CLR ANL 121 5 35 _ 85 8 3 6 9 MR 25 5 1 20 1 i p 2 5 8 0 15 058 10 H T 4 1 4 7 ENT 4 J 5 L s o 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Horizonal BOTTOM VIEW LOGIC UNIT 20 a Ji GND GND LVIN GND UNLK DA2STB GND GND OE DETO tg E INTMIC PTT Aska 1 EXTREGC SBATT 6570 159 Qt Jep CHGVH JACKDET 590 2164 2 SDATA 165 E UD R25 CHGC SCK 72 243 CLONE cad 166 15 DCIN VIN 592 4 EU BEEP TXC 9 nag PSTB DA1STB d ob INTPTT Bl VCC LIGHT gp RFDETV I2 5 a TU Sg RFST
52. B VORDET g gage H e PDATA RSSI mI to RF unit J6 e 7 BB eh 1 J 7 BA Ic EE E 107 8 z CHE 2 gt 2108 120 10 8 E RIS RE3 Rew 115 1 AN 5 ga EN m 4 gd 5 R63 8 8 R560 m BL gan Bue E E nas S ca E RA Es 1899 B 143 566 m 894 8 B e iH 20 092 2 ee B 2 m m lt 1 3 10 we 5 E e 178 e R36 5 L N N IC2 571 25 4 H 65 60 55 45 25 20 15 5
53. C CIRCUIT RF UNIT The AGC Automatic Gain Control circuit reduce signal fad ing and keeps the audio output level constant AF signals from the AM detector circuit Q18 are applied to the AGC amplifier circuits Q14 for 1st 2nd IF amplifiers Q10 for RF amplifier Q9 for RF attenuator The signal from the AGC amplifiers is applied to the 1st 2nd IF ampli fiers Q13 Q15 Q16 and RF amplifier Q11 to reduce the amplifier gain and RF attenuator D29 to attenuate the RF signals when strong signals are received When strong RF signals disappear then the AGC signal is released to keep the constant audio output level AGC CIRCUIT Q18 AM DET AF signal to the AM FM switch 122 2nd IF signal from the 2nd mixer IC1 to the 15 IF amplifier 013 to the RF amplifier Q11 R5 o AM R5 4 ci Tree ART 2nd IF filter AN 015 450 kHz R89 Q17 2 I Fl2 AM AF signal C109 C 112 i 10i tothe R97 R94 switch IC2 6 x pat 29 6MHz 4 2 2 als PLLIC IC3 FM detector x2 29 6 MHz IC2 TA31136F 1st IF 30 05 MHz from FM AF signal to the ze gt ao 4 the IF amplifier Q13 AM FM switch IC2 pin7 C95 C93 C92 TIT TIT TIT 4 1 8 ANL CIRCUIT RF UNIT The ANL Automatic Noise Limiter circuit Q21 D18 reduc es noise c
54. C1608 CH 1H 220J T C1608 CH 1H 070D T C1608 CH 1H 390J T ECJOEB1E102K EEE1CA101WP ECJOEB1E102K C1608 JB 1A 105K T ECST1CY475R ECST1CY475R ECJOEB1E332K ECJOEB1E562K ECJOEB1H391K ECJOEB1E122K ECJOEB1E122K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K TEESVA 1A 475M8L ECJOEB1A473K ECJOEB1E102K ECJOEB1E102K ECJOEB1C103K ECJOEB1E102K ECJOEB1C153K ECJOEB1E472K ECJOEB1E102K TEESVA 1A 106M8L ECJOEB1E102K TEESVA 1A 106M8L ECJOEB1A104K ECJOEB1A104K ECJOEB1A104K ECJOEB1A104K ECST1CY475R ECJOEB1H222K ECJOEB1C822K ECJOEB1A104K ECJOEB1C103K ECJOEC1H151J ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K 100 4 36 8 12 9 8 11 6 12 8 53 2 27 4 16 3 5 1 94 1 38 3 68 2 17 6 72 8 19 71A7 6 81 5 16 5 81 8 15 2 77 5 16 5 85 2 17 7 87 5 25 2 89 6 25 6 71 9 17 6 92 9 19 7 94 4 21 3 95 9 16 5 11 7 7 2 85 6 23 4 96 4 34 40 3 32 9 43 5 32 2 41 9 31 5 42 7 37 1 53 4 35 2 59 9 36 7 61 34 59 4 31 2 29 1 26 2 47 3 27 4 49 3 26 4 52 8 25 9 47 2 30 5 57 2 41 109 1 10 65 5 4 103 9 18 5 71 9 24 4 13 3 34 1 17 6 36 8 15 5 13 6 93 9 29 38 1 27 9 56 9 9 1 56 1 35 6 110 4 19 3 112 5 19 110 8 1 109 8 10 2 108 6 8 9 80 2 9 90 6 7 4 92 9 11 1 21 8 18 6 25 1 26 9 55 7 40 9 51 2 39 3 57 7 39 54 7 40 9 53 38 6 82 4 33 9 45 8 38 7 84 2 33 9 90 1 34 5 105 6 6 7 107 3 4 5 41
55. CER S CER S CER S CER H V DESCRIPTION M LOCATION ERJ2GEJ 152 X 1 5 T 105 9 21 1 ERJ2GEJ 473 X 47 T 111 4 14 4 ERJ2GEJ 223 X 22 T 34 5 22 5 ERJ2GEJ 223 X 22 T 34 1 20 7 ERJ2GEJ 100 X 10 0 T 57 6 11 7 ERJ2GEJ 105 X 1 MQ B 92 3 27 8 ERJ2GE JPW B 95 7 23 9 ERJ2GE JPW B 92 3 26 ERJ2GEJ 472 X 4 7 T 85 1 15 5 ERJ2GEJ 561 X 560 T 79 5 22 2 ERJ2GEJ 223 X 22 T 76 9 24 7 ERJ2GEJ 223 X 22 T 85 4 19 1 ERJ2GEJ 561 X 560 T 84 1 19 3 ERJ2GEJ 471 X 470 T 80 5 17 9 ERJ2GEJ 683 X 68 T 78 6 18 9 ERJ2GEJ 562 X 5 6 82 47 ERJ2GEJ 562 X 5 6 80 8 4 3 ERJ2GEJ 562 X 5 6 69 8 18 7 ERJ2GEJ 183 X 18 70 8 14 1 ERJ2GEJ 472 X 4 7 B 41 6 26 2 ERJ2GEJ 472 X 4 7 B 43 6 26 2 ERJ2GEJ 472 X 4 7 44 6 26 2 ERJ2GE JPW 713 22 ERJ2GEJ 471 470 0 1077 27 ERJ2GEJ 101 X 100 0 B 85 6 18 6 ERJ2GEJ 101 X 100 B 85 6 19 5 ERJ2GEJ 101 X 100 0 85 6 20 4 ERJ2GEJ 822 X 8 2 T 100 8 11 5 ERJ2GEJ 473 X 47 1126 19 ERJ2GEJ 101 X 100 79 3 9 3 ERJ2GEJ 101 X 100 0 88 6 9 3 ERJ2RKF 334 330 35 1 26 7 ERJ2GEJ 102 X 1 103 9 13 6 ERJ2RKF 334 330 60 9 5 7 ERJ2RKF 334 330 63 9 6 2 ERJ2GEJ 103 X 10 33 9 26 ERJ2GEJ 273 X 27 63 5 52 ERJ2GEJ 683 X 68 B 6
56. CONDUCTOR INFORMATION TRANSISTORS AND FET S DIODES 1SS400 1SV246 1 271 HVC350B HVU131TRF Symbol A Symbol CV Symbol TG Symbol BO Symbol 1 S A E Jc A E gt gt gt MA77 MA111 MA133 MA728 MA785 Symbol 4 Symbol 1B Symbol MP Symbol 2A Symbol 2E L A _ E ees A E C gt gt MA2S077 MA2S111 MA2S728 MA2S30400 L MA6S121 Symbol S Symbol A Symbol B Symbol K Symbol M2D Lr A i i E nen
57. D3 signal to the CPU LOGIC unit IC1 pin 30 R23 4 3 PLL CIRCUITS RF UNIT 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 the divided ratio N data of a programmable divider The PLL circuit contains the TX VCO circuit Q58 D38 D48 and RX VCO circuit Q59 039 045 047 The oscillated signal is amplified at the buffer amplifiers Q60 Q29 and then applied to the PLL IC pin 8 The PLL IC contains a prescaler programmable counter programmable divider and phase detector etc The entered signal is divided at the prescaler and programmable counter section by the N data ratio from the CPU The divided signal is detected on phase at the phase detector using the refer ence 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 VCO signal is amplified at the buffer ampli fier Q28 and is then applied to the receive 1st mixer Q12 or transmit buffer amplifier circuit Q6 via the T R switches D6 D17 4 4 POWER SUPPLY CIRCUITS VOLTAGE LINES MAIN UNIT LINE DESCRIPTION The voltage from the connected DC power supply The same v
58. EJ 102 X ERJ2GEJ 102 X ERJ2GE JPW ERJ2GEJ 105 X 1 ERJ2GEJ 105 X 1 ERJ2GEJ 105 X 1 ERJ2GEJ 105 X 1 NTCG16 4LH 473KT ERJ2GEJ 104 X 100 ERJ2GEJ 104 X 100 ERJ2GE JPW ERJ2GE JPW ERJ2GEJ 123 X iet A24 E only ERJ2GEJ 105 X 1 ERJ2GEJ 105 X 1 ERJ2GEJ 123 X 12 ERJ2GEJ 123 X 12 1 1k 1 1 1 ERJ2GEJ 123 X 12 ERJ2GEJ 104 X 100 ERJ2GEJ 104 X 100 kQ ERJ2GE JPW S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S ARY S ARY S RES S CER S CER S CER S CER S CER S CER S CER S CER S CER S CER ERJ2GEJ 222 X 2 2 ERJ2GEJ 333 X 33 ERJ2GEJ 103 X 10 ERJ2GEJ 102 X ERJ2GEJ 102 X ERJ2GEJ 102 ERJ2GEJ 102 X ERJ2GEJ 102 ERJ2GEJ 332 X ERJ2GEJ 102 X ERJ2GEJ 102 X ERJ2GEJ 102 X ERJ2GEJ 102 X ERJ2GEJ 102 X EXB28V102JX EXB28V102JX ERJ3GE JPW V 1 1k 1 1 1 3 3 1 1 1 1 1 C1608 JB 1A 474K T ECJOEB1A104K ECJOEB1E102K ECJOEC1H060C ECJOEC1H330J ECJOEB1A104K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEB1C103K 16 1 25 5 15 9 21 9 13 8 20 1 15 9 20 1 1
59. EJ 823 82 40 3 20 9 155 6200007000 S COL ELJRE 82NG F T 58 7 11 3 7030009290 ERJ2GEJ 562 5 6 107 3 7 1 156 6200007000 S COL ELJRE 82NG F T 53 7 15 1 7030005030 ERJ2GEJ 152 X 1 5 75 8 10 157 6200003640 S COL MLF1608E 100 T 81 25 7030004980 ERJ2GEJ 101 X 100 0 T 78 4 9 158 6200003640 S COL MLF1608E 100 T 84 6 26 9 7030005220 ERJ2GEJ 223 X 22 77 5 4 9 159 6200004480 S COL MLF1608D R82K T T 80 2 19 6 7030005600 ERJ2GEJ 273 X 27 B 76 5 6 7 EUR IC A24E ICA6E M Mounted side T Mounted on the Top side B Mounted on the Bottom side S Surface mount RF UNIT ORDER NO DESCRIPTION H V LOCATION RF UNIT REF ORDER NO NO 7030005030 7030010040 7030005070 7030005600 7030005120 7030008370 7030005720 7030004980 7030005110 7030005720 7030005040 7030005290 7030005240 7030005700 7030005230 7030005090 7030000190 7030000190 7030005090 7030000280 7030000170 7030005050 7030005050 7030008280 7030005220 7030004970 7030007570 7030005300 7030005000 7030005720 7030005000 7030007290 7030005220 7030005120 7030008370 7030005530 7030010040 7030000010 7030005290 7030010040 7030008010 7030005120 7030005050 7030005090 7030005160 7030005160 7030005160 7030005240 7030005720 7030005090 7030005090 7030008280 7030003400 7030010040 7030005120 7030005580 7030005120 7030010010 7030010020 7030010010 7030010020 7030
60. FU TE12L 105 5 9 6 39 5 5 8 1130008830 TB31207AFN EL 93 3 20 2 39 5 6 8 1130007570 BU4094BCFV E2 76 4 30 40 7 8 7 1110001810 TA7368F ER 47 8 32 7 52 4 12 1110002400 NJM2107F TE1 62 3 8 3 57 1 27 2 1110005310 AN6123MS 93 8 5 6 58 27 2 1110006400 S M62343GP 065 42 6 20 9 1190000350 M62363FP 650C 106 8 17 8 1110006470 LMV324IPWR 107 2 14 5 55 3 27 2 21272 26 2 1110002400 NJM2107F TE1 90 6 9 2 58 9 27 2 52 4 33 5 60 5 7 2 63 43 63 8 30 9 60 4 40 5 60 4 39 6 60 4 37 8 61 9 35 62 9 30 9 60 4 41 4 66 30 6 61 2 36 8 60 4 38 7 61 9 35 9 62 30 9 74 6 33 75 1 34 2 76 7 35 6 78 34 4 76 9 36 7 77 6 37 6 77 6 39 1 77 3 40 5 76 5 41 4 75 1 43 4 26 1 7 8 74 6 32 1 73 1 30 6 68 6 30 6 64 7 30 3 66 9 30 6 57 8 16 7 57 4 22 7 56 15 1 57 4 21 8 73 5 43 8 69 5 30 6 71 3 30 6 ORDER DESCRIPTION LOCATION 79 5 40 9 81 6 43 1 79 5 37 4 61 4 42 3 52 3 10 3 53 4 10 7 45 1 4 2 70 4 30 6 72 2 30 6 73 9 33 9 4030016790 ECJOEB1C103K 4550006690 ECST1AC476R 4030017460 ECJOEB1E102K 4550006350 TEESVB2 1A 226M8L 4030016930 ECJOEB1A104K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4550006690 ECST1AC476R 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K A24 E 4030017730 ECJOEB1E471K A24 E 4550006250 TEESVA 1A 106M8L A24 E 4550006150 ECST1CY105R A24 E 4550006250 TEESVA 1A 106M8L A24 E 4030017460 ECJOEB1E102K A24 E 4030016930 ECJOEB1A104K
61. GUIDE FOR 1 COMPOSITION IC A24 A6 A3format pdf A 4format pdf nstruction pdf 505 W_README txt 2 DESCRIPTION A24 A24_A6 pdf is service manual for IC A24 IC A6 and including all service information in this CD This file is mainly used for viewing on the computer display and checking page order to make printed service manual Or when you want to find a component you can find very fast using FIND function except Board layout A3format pdf A3format pdf consists of format pages Board layout Mechanical parts and disassembly and etc in 24 A6 pdf This file is used for printing out format pages A4format pdf A4format pdf consists of A4 format pages Circuit description Adjustment procedures Parts list and etc in 24 A6 pdf This file is used for printing out A4 format pages Instruction pdf Instruction pdf is a instruction manual for IC A24 A6 This file is exactly same as supplying instruction manual withproduct and consists of all A4 format pages If you have A4 format printer you can print out and make brand new instruction manual any time you want Also this file is very helpful when you want to change or set product conditionfor adjustment or else 505 ar505eng exe is an installation program of Adobe Acrobat Reader 5 0 English version Microsofte Windows 95 98 Me NT 2000 XP users W_README txt W_README txt is a readm
62. J2GEJ 105 X 1 ERJ2GEJ 473 X 47 ERJ2GEJ 563 X 56 ERJ2GEJ 104 X 100 ERJ2GEJ 104 X 100 ERJ2GEJ 271 X 270 0 ERJ3GEYJ 471 V 470 ERJ2GE JPW ERJ2GEJ 102 X 1 ERJ2GEJ 560 56 0 ERJ2GEJ 102 X 1 ERJ2RKF 334 X 330 ko ERJ2RKF 154 X 150 ERJ2RKF 334 X 330 ERJ2RKF 154 X 150 kQ MCR10EZHJ 15 150 MCR10EZHJ 18 180 ERJ2GEJ 104 X 100 ERJ2GEJ 102 X 1 ERJ2GEJ 394 X 390 ERJ2GEJ 473 X 47 kQ ERJ2GEJ 393 X 39 ERJ2GEJ 104 X 100 ERJ2GEJ 474 X 470 kQ ERJ2GEJ 473 X 47 kQ ERJ2GEJ 473 X 47 ERJ2GEJ 473 X 47 kQ MCR10EZHJ 2 7 287 ERJ2GEJ 471 X 470 ERJ2GEJ 224 X 220 ERJ2GEJ 103 X 10 kQ ERJ2GEJ 333 X 33 ERJ2GEJ 223 X 22 ERJ3GEYJ 104 V 100 ERJ2GEJ 102 X 1 ERJ2GEJ 103 X 10 kQ ERJ2GE JPW ERJ3GEYJ 105 V 1 ERJ2GE JPW ERJ2GEJ 104 X 100 ERJ2GEJ 474 470 ERJ2GEJ 473 X 47 ERJ2GEJ 473 X 47 ERJ2GEJ 473 X 47 ERJ2GEJ 471 470 0 ERJ2GEJ 102 X 1 1 ERJ2GEJ 102 X 1 UJ M HM HU H HL HLU UJ UJ UJ UJ UJ UJ 4313333 3300000 A AA HU UJ UJ UJ UJ UJ 1313000 1330 1 HU UJ UJ UJ UJ UJ UJ UJ 33 UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ UJ 79 3 4 9 83 8 7 4 83 8 9 2 87 5 6 7 87 3 9 6 85 7 6 2 94 4 6 92 3 4 4 96 7 10 6 95 7 10 6 95 4 4 8 99 8 7 5 98 5 8 2 97 7 11
63. OEB1E102K 4030017460 ECJOEB1E102K 4030016930 ECJOEB1A104K 4030016970 ECJOEB1C223K 4030016970 ECJOEB1C223K 4030018860 ECJOEBOJ105K 4030017650 ECJOEC1H270J 4030017460 ECJOEB1E102K 4030017690 ECJOEC1H121J 4030017710 ECJOEC1H181J 4030017690 ECJOEC1H121J 4030017460 ECJOEB1E102K 4030016930 ECJOEB1A104K 4030017680 ECJOEC1H820J 4030017410 ECJOEC1H240J 4030017700 ECJOEC1H151J 4030017610 ECJOEC1H090C 4030017680 ECJOEC1H820J 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 75 1 18 4030017460 ECJOEB1E102K 75 1 17 1 EUR IC A24E IC A6E M Mounted side T Mounted on the Top side B Mounted on the Bottom side S Surface mount ADADAADAD UJUJU2U2U2U2UJU2 AA ANA AWI TAWON AA 5 5 1 5 51 515 5 5 lt lt lt 6 6 SECTION 7 MECHANICAL PARTS AND DISASSEMBLY CHASSIS PARTS RF UNIT DESCRIPTION uid DESCRIPTION QTY 1 1 6510022460 Connector BNC R162 6450000870 Connector HEC2711 01 020 6450001680 Connector HSJ1122 010010 8900009640 Cable OPC 963 6450001060 Connector HSJ1493 01 010 2260002840 Switch SKHLLFAO10 2260002840 Switch SKHLLFAO10 2510001092 Speaker 036D0801B 8210020971 2791 front panel 1 assembly IC A24 8210021201 2791 front panel A 1 assembly IC A6 8210021211 2791 front panel B 1 asse
64. R308 7510001660 R309 7030007290 R313 7030010040 R315 7030000010 R316 7030005220 R317 7030005240 R318 7030010040 R319 7510001660 R320 7030007300 R321 7510001660 R322 7030005600 R323 7030009140 R325 7030010040 R326 7030005090 R327 7030005030 R328 7510001540 R329 7510001540 R330 7030004980 R331 7030008310 R332 7030010040 R333 7030005720 R335 7030004980 R336 7030005590 R337 7030005590 R338 7030010040 R339 7030010040 R340 7030010040 R341 7030010040 R342 7030011140 R343 7030011140 R344 7030003860 R345 7030003860 R346 7030003860 R347 7030005530 4030007050 4 4030006980 5 4030007060 C6 4030006940 C7 4030007040 C8 4030006860 C9 4030006860 C10 4030006860 C11 4030009510 C12 4030009510 C13 4030007030 C14 4030007030 C15 4030009510 C16 4030009500 C17 4030017330 C19 4030007170 C20 4030017460 C22 4030007090 C23 4030017460 S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S TMR S RES S RES S RES S RES S RES S RES S TMR S RES S TMR S RES S RES S RES S RES S RES S TMR S TMR S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES S RES RES RES S RES S RES S RES S RES S CER S CER S CER S CER S CER S CER S CER S CER S CER S CER S CER S CER S CER S CER S CER S
65. and set as Push ENT key Level 82 dBm 18 uV No modulation Receiving Connect an SSG to the antenna connector and set as Push ENT key Level 85 dBm 13 uV No modulation Receiving Operating frequency 162 550 MHz Push ENT key Connect an SSG to the antenna connector and set as Level 117 dBm 0 32 uV No modulation Receiving Connect an SSG to the antenna connector and set as Push ENT key Level 120 dBm 0 22 uV No modulation Receiving Connect an SSG to the antenna connector and set as Push ENT key Level 82 dBm 18 uV No modulation Receiving Connect an SSG to the antenna connector and set as Push ENT key Level 85 dBm 13 uV No modulation Receiving This output level of a standard signal generator SSG is indicated as SSG s open circuit SOFTWARE ADJUSTMENT continued ADJUSTMENT ADJUSTMENT CONDITION OPERATION VOR OFF e Operating frequency 108 000 MHz Push ENT key IC A24 only Connect a VOR tester to the antenna connector and set ud 7 90 dBm 7 1 uV Modulation 9960 Hz 10 30 Hz 30 Bearing 102 Receiving VOR PHASE Operating frequency 108 000 MHz Push ENT key IC A24 only Connect a VOR tester to the antenna connector and set as Level 60 dBm 220 uV Modulation 9960 Hz 30 30 Hz 30 Bearing 0 Receiving This output level of a standard sig
66. antenna connector Modulation Attenuator analyzer 20 dB or 30 dB N RF power meter 0 1 10 W 50 Q Frequency counter AC millivoltmeter Distortion meter BATTERY VERNIS di Speaker 8 DC POWER SUPPLY DC ammeter DC 11V DC ammeter SUPPLY 7 2 5 11 IC A24 E 6 ADJUSTMENT MODE DISPLAY Operating frequency Adjustment item Adjustment value 5 2 SOFTWARE ADJUSTMENT ADJUSTMENT ADJUSTMENT CONDITION OPERATION IDLING CURRENT for final amp 5 1 Operating frequency 127 500 MHz Connect a DC ammeter between the battery terminal and DC power supply 7 2 V Operating frequency 118 025 MHz 3 Operating frequency 136 975 MHz Operating frequency 127 500 MHz Connect DC ammeter between the DC 11V jack and DC power supply 11 V Operating frequency 118 025 MHz Operating frequency 136 975 MHz e Measure the current at 00 point A Rotate DIAL to adjust the current 500 mA Push ENT TX OUTPUT POWER rE e Operating frequency 127 500 MHz e Connect a 7 2 V DC power supply to the battery terminal e No audio signal apply to the microphone connector e Transmitting e Operating frequency 118 025 MHz e Transmitting e Operating frequency 136 975 MHz e Transmitting e Preset IDLING CURRENT for driver amp 45 to 67 cm Preset to 67 before adjusting TX output power
67. doze 2512 51948 6L 1936 1948 8 1935 EIRT LS T JEN gESEEE 8 5 Si IIS 858 01038 01935 6938 Tey 6936 228 BE 8935 25 Zi 8985 1936 n 1038 9936 OL 9935 9938 6 S35 vas 8 7936 2036 T 035 2038 2035 MUSS 1935 WOO Bn 0 Woo 55 WOO 68 8 wool WOI aol as mm a 7901 0710 3 Feet 8 8 901 SOF ale 58 1999 1535 2935 5935 1936 9935 9935 1935 8535 2 NY 1 6935 8 01935 55 gt 899H KANA TR 8 8 a a 0027 7190 on On TP76N00 15F A103 2791 70 00 2015 1903 8130 1 LLI o 11 1 LOGIC UNIT 1121 11 2 A RF UNIT 1 5 5V VCC VCC 5 ko E res uu og 2581132
68. e text about this service manual for Windowse user that not installed Acrobat Reader yet Icom Icom Inc and Icom logo are registered trademarks of Icom Incorporated Japan in the United states the United Kingdom Germany France Spain Russia and or other countries Acrobat Reader Copyright 1987 2002 Adobe Systems Incorporated All rights reserved Adobe the Adobe logo Acrobat and the Acrobat logo are trademarks of Adobe Systems Incorporated Microsoft and Windows are registered trademarks of Microsoft Corporation in the U S A and other countries Copyright 2004 Icom Inc SERVICE MANUAL IC A6 E Icom Inc INTRODUCTION This service manual describes the latest service information for the IC A24 E IC A6 E VHF AIR BAND TRANSCEIVER at the time of publication MODEL VERSION SYMBOL U S A USA General GEN ee U S A 1 USA 1 U S A 2 USA 2 IC A24E Europe EUR U S A USA General GEN iene USA 1 USA 1 U S A 2 USA 2 IC AGE Europe EUR To upgrade quality any electrical or mechanical parts and internal circuits are subject to change without notice or obligation DANGER NEVER connect the transceiver to an AC outlet or to a DC power supply that uses more than 11 5 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
69. ent passes through the 30 Hz bandpass filter IC12 R83 R88 C112 C113 and is converted to a square wave signal at the VORS comparator IC14 The square wave signal is then applied to the CPU IC1 pin 2 as variable signal VORS The 9960 Hz component passes through the 10 kHz bandpass filter IC12 R79 R82 C108 C109 These com ponents are FM modulated with 480 Hz deviation and 30 Hz modulation Signals are then amplified at a limiter amplifier IC11 and detected at an FM detector IC11 to obtain a 30 Hz refer ence signal The 30 Hz signal is compensated on phase at IC12 This signal is passed through the 30 Hz low pass filter IC12 and is converted to a square wave signal at the VORC compara tor IC14 This signal is applied to the CPU IC1 pin 3 asa reference signal VORC A portion of output from the buffer amplifier IC12 is applied to the amplifier Q13 When VOR level is low or receiving the signal except VOR signal output from IC12 is reduced Output signal from Q13 is applied to the CPU IC1 pin 28 as a OFF FLAG signal VORD VORDET signal from ALC5V AM detector 018 Pe Rane oe eens SL 4 1 Blas 1 9 30 kHz 1_ lt Comp 2 14 VORS signaltothe BPF CPU ICi pin2 IC13 IC11 5 i i a E AER i 10 kHz 1 7 13 7 signal to the H LPF
70. in 5 4 5 3 EXPANDER RF unit IC17 Pin T number Description Outputs the bandpass filter tuning control signal Input port for the VOR signal detec tion Input port for the receive signal level Input port for the power detection of power amplifier RF unit Q2 Input port for the transceiver s internal temperature Input port for the battery type detec tion Input port for the battery voltage de tection Outputs BEEP audio signals Outputs strobe signal to the PLL IC RF unit IC3 Outputs data signals to the PLL IC RF unit IC3 Outputs clock signal to the PLL IC RF unit IC3 Outputs control signal to the T5 regu lator circuit Q7 Q8 D8 Input port for external SP jack con nection detection High While external SP jack is connected 119 120 Input ports for DIAL Outputs modulation control signal to the buffer amplifier IC18 Outputs modulation control signal to the ALC amplifier 1 19 Outputs AF volume control signal to the AF amplifier IC6 SECTION 5 ADJUSMENT PROCEDURS 5 1 PREPARATION Most of adjustment must be adjusted on the ADJUSTMENT MODE CS A24 CLONING SOFTWARE REV 1 0 or later and OPC 478 U CLONING CABLE are required REQUIRED TEST EQUIPMENT EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGE Output voltage 7 2 11 Frequency range 300 3000 Hz power
71. index html Icom America Inc lt Corporate Headquarters gt 2380 116th Avenue N E Bellevue WA 98004 U S A Phone 1 425 454 8155 Fax 1 425 454 1509 URL http www icomamerica com E mail sales icomamerica com Customer Service Phone 1 425 454 7619 Icom Canada Glenwood Centre 1150 6165 Highway 17 Delta B C 588 Canada Phone 1 604 952 4266 Fax 1 604 952 0090 URL http www icomcanada com E mail info icomcanada com Icom Australia Pty Ltd A B N 88 006 092 575 290 294 Albert Street Brunswick Victoria 3056 Australia Phone 61 03 9387 0666 Fax 61 03 9387 0022 URL http www icom net au E mail sales icom net au Icom New Zealand 146A Harris Road East Tamaki Auckland New Zealand Phone 64 09 274 4062 URL http www icom co nz E mail inquiries 9 icom co nz Fax 64 09 274 4708 Beijing Icom Ltd 1305 Wanshang Plaza Shijingshan Road Beijing China Phone 86 010 6866 6337 Fax 86 010 6866 3553 URL http www bjicom com E mail bjicom 9 bjicom com Icom Europe GmbH Communication Equipment Himmelgeister Str 100 D 40225 D sseldorf Germany Phone 449 0211 346047 Fax 49 0211 333639 URL http www icomeurope com E mail info Icom Spain S L Crta de Gracia a Manresa Km 14 750 08190 Sant Cugat del Valles Barcelona SPAIN Phone 34 93 590 26 70 Fax 34 93 589 04 46 URL http
72. mVrms Set a modulation analyzer as HPF OFF LPF 20 kHz Detector 2 Transmitting 2 Operating frequency 118 025 MHz Transmitting 3 Operating frequency 136 975 MHz Transmitting 4 Operating frequency 127 500 MHz Connect an 11 V DC power supply to the DC 11V jack Transmitting 5 Operating frequency 118 025 MHz Transmitting 6 Operating frequency 136 975 MHz Transmitting SOFTWARE ADJUSTMENT continued ADJUSTMENT ADJUSTMENT CONDITION OPERATION SENSITIVITY Operating frequency 108 025 MHz Push ENT key Connect an SSG to the antenna connector and set as Level 102 dBm 1 8 pV No modulation Receiving Operating frequency 127 500 MHz Push ENT key Receiving Operating frequency 136 975 MHz Push ENT key Receiving Operating frequency 161 650 MHz Push ENT key Receiving Operating frequency 163 275 MHz Push ENT key Receiving SQUELCH Operating frequency 108 025 MHz IC A24 Push ENT key D 118 025 MHz IC A6 E Connect an SSG to the antenna connector and set as Level 111 dBm 0 63 uV for IC A24 114 dBm 0 45 uV for IC A6 No modulation Receiving Connect an SSG to the antenna connector and set as Push ENT key Level 114 dBm 0 45 uV for IC A24 117 dBm 0 32 uV for IC A6 No modulation Receiving Connect an SSG to the antenna connector
73. mbly IC A24E 8210021221 2791 front panel C 1 assembly 8010019700 2791 chassis 8930063570 2791 main seal 8930063760 2791 key IC A24 8930064010 2791 key A IC A6 8930064090 2791 key B IC A24E 8930064080 2791 key C IC A6E 8930063740 2791 jack cap 8930063750 2791 DC cap 8930054680 2458 release button 8930053680 Push spring AG 8930064050 2791 plus terminal 8210017091 2337 terminal holder 1 8930050840 2251 minus terminal 8930063810 2791 side plate 8610011930 Knob N318 8610012120 Knob N322 8830001340 1903 hex nut 8830001250 Nut ant connector 101 8930052840 2337 T rubber 8310062150 2791 window plate 8930064060 2791 window sheet 8930042350 1922 mic sheet 8850001880 Sealing washer W 8930065090 2791 pet sheet 8930065140 2791 mic sponge 8860001350 2791 earth plate 8810009560 Screw PH BT M2 x 6 ZK 8810009510 Screw M2 4 NI ZU 8810004860 Screw PH M2 x 6 ZK 8810009180 Screw FH BT M2 x 5 NI ZU 8810010400 Screw PH M2 x 4 SUS ZK 8410002560 2791 PA heatsink 8950005320 2337 contact 8510016530 2791 VCO case 8510016520 2791 VCO cover 8510016831 2791 RF cover 1 8510016840 2791 RF A cover 8510016850 2791 RF B cover 8510016860 2791 RF C cover Screw abbreviations PH Pan head FH Flat head BT Self tapping ZK Black NI ZU Nickel Zinc ACCESORIES DESCRIPTION 8900005650 Cable OPC 499 08
74. ment item UP 121 5 Change the adjustment item DOWN MR Change the adjustment value DIAL EXITING THE ADJUSTMENT MODE When the adjustment is finished the transceiver must be cancelled adjustment mode to use normal operation other wise the transceiver does not work properly 1 Turn transceiver s power OFF and then power ON again 2 Select Disable the Adjust Mode box on cloning soft ware and then cloning the original memory data 3 Turn power OFF Microsoft and Windows are registered trademarks of Microsoft Corporation in the U S A and other countries EXPERT SCREEN H Untitled CS A24 View Clone ETE IE 1o A24 Recall Common Setting EXPERT Model Help Display IPIETIETA Memory 6 digits Opening Enable Enable faic Enable Duplex Enoble Enable When entering adjustment mode select Enable the Adjust Mode Click the EXPERT CONNECTION Standard signal generator to the antenna connector AC millivoltmeter 0 1 pV to 32 mV gt To MIC Audio generator 127 dBm to 17 dBm CAUTION DO NOT transmit while OPC 478 RS 232C type an SSG is connected to the
75. nal generator SSG is indicated as SSG s open circuit SECTION 6 PARTS LIST LOGIC UNIT ORDER NO DESCRIPTION H V LOCATION LOGIC UNIT ORDER NO DESCRIPTION H V LOCATION 1140012400 1110006310 1110006090 1130012430 1110003790 1110003780 1110003800 1110003790 1180002680 1520000460 1530003280 1530003630 1520000270 1590003270 1590003410 1590001170 1590003290 1590003290 1530003280 1590001980 1590003290 1790001250 1790001200 1790001250 1790001250 1730002300 1790001250 1790001250 1790001250 1790001250 1790001250 1790001260 1730002320 6050011550 7030005160 7030007320 7030005090 7030007570 7030007570 7030007570 7030007300 7030008410 7030005090 7030005050 7030005050 7030005050 7030005050 7030005040 7030009160 7030009160 7030007340 7030007340 7030007350 7030005240 7030005090 7030007340 7030005040 7030005110 7030005110 7030005050 7030005700 7030008290 7030008300 7030008290 7030005040 7030005040 7030005110 7030005720 7030005060 7030005110 uPD780338GC 503 9EB BD5245G TR XC6202P502PR S 24CS64A0I T8T1G NJM2903V TE1 NJM2902V TE1 NJM2904V TE1 NJM2903V TE1 S 812C50BMC C5E T2G A24 E only A24 E only A24 E only A24 E only 2881132 7100 28C4211 6 TL 28C4617 TLS 2881182 TL UNR9210J TX UNR9110J TX XP1501 TX AB UNR9213J TX UNR9213J TX 28C4211 6 TL XP4315 TX UNR9213J TX A24 E only
76. ng frequency 136 975 MHz Transmitting Rotate DIAL to set to 30 modulation SOFTWARE ADJUSTMENT continued ADJUSTMENT ADJUSTMENT CONDITION OPERATION MAX 4 Operating frequency 127 500 MHz Rotate DIAL to set to 30 modulation MODULATION Connect an 11 V power supply to the DC 11V jack PRESET Transmitting Lay Operating frequency 118 025 MHz Transmitting Operating frequency 136 975 MHz Transmitting IDLING CURRENT for driver amp 48 Operating frequency 127 500 MHz Rotate DIAL to adjust minimum distor Connect a 7 2 V DC power supply to the battery terminal tion e Connect an audio generator to the MIC connector and set Push ENT key as 1 kHz 20 mVrms Set a modulation analyzer as HPF OFF LPF 20 kHz Detector 2 Transmitting Operating frequency 118 025 MHz Transmitting Operating frequency 136 975 MHz Transmitting Operating frequency 127 500 MHz Connect an 11 V DC power supply to the DC 11V jack Transmitting Operating frequency 118 025 MHz Transmitting 6 Operating frequency 136 975 MHz Transmitting MAX 1 Operating frequency 127 500 MHz Rotate DIAL to set to 9096 modulation MODULATION e Connect 7 2 V DC power supply to the battery terminal Push ENT key d n Connect an audio generator to the MIC connector and set E as 1 kHz 200
77. oltage as the HV line or battery voltage through the power switch Q24 D19 D22 Common 5 V converted from the HV line at the CPU5V regulator circuit LOGIC unit IC3 The output voltage is applied to the CPU LOGIC unit IC1 reset IC LOGIC unit 2 and EEPROM LOGIC unit IC7 etc Common 5 V converted from the VCC line by the 5 V regulator circuit LOGIC unit IC16 04 Q7 010 The output voltage is applied to the PLL IC RF unit 103 and D A convertor IC RF unit IC17 etc Transmit 5 V controlled by the T5V regula tor circuit RF unit Q7 Q8 D8 using TXC signal from the CPU LOGIC unit IC1 The output voltage is applied to the buffer ampli fier RF unit Q6 and pre driver RF unit 04 etc Receive 5 V controlled by the R5S regulator circuit Q20 using R5C signal from the CPU LOGIC unit IC1 The output voltage is ap PLL CIRCUIT plied to the RF amplifier RF unit Q12 and 1st IF amplifier RF unit Q13 etc f RXVCO Buffer E NS A i zl D6 to transmitter circuit _ AVV 58 039 D45 D4 Buter to 1st mixer circuit 4 gt EC RU D17 p Buffer 029 filter Q58 D38 D48 IC3 TB31207 9 Phase Programable prescaler le detector counter C 3 PLST Programable Shift register S0 divider 5 SCK 2nd LO signal 14 to the FM IF IC 2 L 29 6 MHz
78. omponents The AM detector output signal from the Q18 is applied to the cathode of D18 passing through R99 where it is divided by R99 and R100 The signal is also applied to the anode of 018 passing through R101 and R102 When the ANL function is activated Q21 is ON C115 is grounded The detector output including noise components are applied to the cathode of D18 only If noise components are received the cathode voltage of D18 becomes higher than the anode voltage and D18 turns OFF Thus while noise components are received the detected signal is not applied to IC2 ANL CIRCUIT To 122 pin 6 D18 102 021 gt 11 115 99 AW o AM AF signal from Q18 R100 AN ANLC signal R101 from IC5 pin 7 4 1 9 VOR NAVIGATION CIRCUIT LOGIC UNIT IC A24 E ONLY From the AF signal the VOR circuit detects a variable signal VORC and reference signal VORS from a VOR station The VOR circuit sends these signals to the CPU When the transceiver is set in the navigation band 108 000 117 975 MHz the VORON port of the CPU IC1 pin 118 becomes HIGH turning the VOR circuit ON via Q15 Q15 controls a 5 V power source for the VOR circuit The signal from the AM detector VORDET is buffer ampli fied at the OP AMP IC IC12 The VORDET signal includes 30 Hz variable phase com ponents and 9960 Hz reference phase components VOR NAVIGATION CIRCUIT The 30 Hz compon
79. pin 16 and is mixed with a 29 6 MHz 2nd LO signal generated at the PLL cir cuit using the reference frequency 29 6 MHz to produce a 450 kHz 2nd IF signal The 2nd IF signal from the 2nd mixer IC1 pin 3 passes through a ceramic filter FI2 to remove unwanted hetero dyned frequencies The filtered signal is amplified at the IF amplifier Q15 and is then applied to the AM detector cir cuit or FM detector circuit respectively 1 AM DETECTOR CIRCUIT The amplified signal is amplified again at the 2nd IF ampli fiers Q16 Q17 and applied to the AM detector Q18 to demodulate the 2nd IF signal into AF signals The demodulated AF signals are applied to the AM FM switch IC2 pin 6 via the ANL circuit D18 ANT S D8 D9 D13 Q11 D14 D16 Q12 IC1 ANT XTAL LPF sw BPF gt BPF 60 err 1st Mixer 2nd Mixer AM signal 018 916 017 sigunal ANL to the AF circuit AM FM Switch 1 E lt 9 signal DET 5 _ IC1 2 DETECTOR CIRCUIT The amplified signal is applied to the limiter amplifier section of the IF IC IC1 pin 5 and is then applied to the quadra ture detector IC1 pins 10 11 to demodulate the 2nd IF signal into AF signals The demodulated AF signals are output from pin 9 of the IC1 and are applied to the AM FM switch IC2 pin 7 4 1 5 AF CIRCUIT RF UNIT The AF amplifier circuit amplifies
80. rance Spain Russia and or other countries SECTION 1 2 SECTION 4 4 A A A 1 1 1 1 a A SECTION 5 5 5 2 SECTION 6 SECTION 7 SECTION 8 SECTION 9 9 1 9 2 SECTION 10 11 11 1 LOGIC UNIT 11 2 RF UNIT SPECIFICATIONS INSIDE VIEWS CIRCUIT DESCRIPTION RECEIVER CIRCUITS ee eH le ee TRANSMITTER CIRCUITS 2 edes cetera POWER SUPPLY CIRCUITS i uz hab aqux RR ER eina CPU PORT AELOGATIONS aia ae REN EORR pale Rete Ra ADJUSTMENT PROCEDURES PBREPARIOTION eed ERR MR EE ND ES SOFT WEAR ADJUSTMENT PARTS LIST MECHANICAL PARTS AND DISASSEMBLY SEMI CONDUCTOR INFORMATION BOARD LAYOUTS EGGIC RE UINDU iiie meta hate diccre acte trc t Eod toties RARE ad BLOCK DIAGRAM VOLTAGE DIAGRAMS o A U N 1 1 SPECIFICATIONS GENERAL Frequency coverage Type of emission Channel spacing Number of memory channels Power supply requirement External power supply requirement Current drain at 7 2 V DC Operating temperature range Frequency stability Antenna connection Dimensions projections not included Weight without antenna bat
81. smit signal to a level needed for the power amplifier circuit The power ampli fier circuit amplifies this to obtain a specified transmit output power The modulated RF signal from the buffer amplifier Q6 is applied to the pre drive amplifier Q4 after being passed through the ALC attenuator D4 The signal is amplified at the YGR Q3 and power amplifier Q2 to obtain 5 W PEP 3 6 W PEP for EUR of RF power The amplified signal passes through the low pass filter L6 L46 C22 C212 C297 C299 The filtered signal is applied to the antenna connector CHASSIS unit J1 via the power detector D2 D3 L5 antenna switch D1 and low pass filter L1 L3 L45 C3 C7 C210 C211 ALC CIRCUIT TX signal from the Pre drive buffer amplifier Q6 IC16 pin 4 2 o ANV C38 ALC amplifier T5 From the D A converter 4 2 4 ALC CIRCUIT RF UNIT The ALC Automatic Level Control circuit controls the input level of the pre drive amplifier to obtain stable output power The ALC voltage is detected at the detector circuit D2 D3 The detected voltage is combined and is then amplified at the ALC amplifier Q5 after being passed through the ALC controller Q1 The amplified signal is applied to the ALC attenuator D4 to obtain stable output power VCC VCC Power amplifier Driver amplifier antenna gt PWR DET D2
82. supply Current capacity 5 A or more Measuring range 1 500 mV Audio generator Measuring range 1 10 W Power attenuation 20 or 30 dB RF power meter 100 200 MHz Frequency range Impedance SWR terminated type 50 0 Less than 1 2 1 0 1 300 MHz 1 ppm or better 100 mV or better Frequency range Frequency accuracy Sensitivity Frequency counter Attenuator Capacity More than 10 W 0 1 300 MHz 0 1 uV to 32 mV 7127 to 17 dBm Frequency range Standard signal Output level generator SSG DC ammeter Measuring range 100 500 mA 30 300 MHz 0 100926 Frequency range Measuring range Modulation analyzer DC voltmeter Input impedance 10 DC or better DC Ammeter Mesurring range 100 mA to 1 A SYSTEM REQUIREMENT RS 232C serial port Microsoft Windows 98 SE ME 2000 XP USB port CLONING SOFTWARE INSTALLATION 1 Quit all applications when Windows is running 2 Insert the CD into the appropriate CD drive 3 Double click the Setup exe contained in the CD drive 4 The Welcome to the InstallShield Wizard for CS A24 will appear Click Next gt 5 The User Information will appear then type your name your company name and the product ID number with the following manner Then click Next gt D number 279201 6 digit serial number e g the serial number on the CD is 000101 enter 279201 000101 as the ID
83. t from the chassis unit x g gt o L L RF unit Continue to right above Be careful not to break and lost the sealing washer SECTION 4 CIRCUIT DESCRIPTION 4 1 RECEIVER CIRCUITS 4 1 1 ANTENNA SWITCHING CIRCUIT RF UNIT The antenna switching circuit functions as a low pass filter while receiving However its impedance becomes very high while D8 and D9 are turned ON Thus transmit signals are blocked from entering the receiver circuits The antenna switching circuit employs a type diode switching system Received signals are passed through the low pass filter L1 L3 145 C3 C7 C210 C211 The filtered signals are applied to the type antenna switching circuit D8 D9 The passed signals are then applied to the RF amplifier cir cuit 4 1 2 RF CIRCUIT RF 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 are amplified at the RF amplifier Q11 after passing through the tunable bandpass filter 013 118 170 C58 C60 The amplified signals are applied to the 1st mixer circuit Q12 after out of band signals are suppressed at the another tunable bandpass filter 014 016 044 122 123 70 79 Varactor diodes are employed at the bandpass filters 013 016 044 that track the filters and are controlled by the CPU LOGIC unit
84. tery pack m TRANSMITTER RF output power at 7 2 V DC Modulation system Modulation limiting Modulation depth Audio harmonic distortion Hum and noise ratio Spurious emissions except operating frequency 62 5 kHz range Harmonic spurious emissions except operating frequency 1 MHz range Microphone connector m RECEIVER Receive system Intermediate frequencies Sensitivity VOR AM 6 dB S N COM AM 6 dB S N COM AM 12 dB SINAD with CCITT filter WX FM 12 dB SINAD Threshold squelch sensitivity Selectivity Spurious response rejection ratio Audio power output at 7 2 V DC Hum and noise Ext speaker connection 10 to 60 14 F to 140 F 5 0 W PEP typical 1 5 W CW typical More than 35 dB More than 46 dB More than 40 dB at 30 modulation TX 118 000 136 975 MHz RX 108 000 136 975 MHz 1 WX 161 650 163 275 MHz 2 71 24 only IC A6 E 118 000 136 975 MHz 2 USA only 6 16KOG3E Weather channel USA only 25 kHz 20 channels x 10 banks Specified ICOM s battery pack BP 209N BP 210N BP 211N 11 0V DC Transmit 1 5 A typical Receive 300 mA typical AF max 70 mA typical Stand by GEN USA 20 C to 55 EUR x5 ppm BNC type 50 O nominal 129 3 W x 54 H x 35 5 D mm 5382 W x 218 x 119 22 D 180 g 61132 oz Approx GEN USA 3 6 W PEP typical 1 0 W

IC-A24/A6 Service manual

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