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IC-M504 SERVICE MANUAL

1.
2. m 3i t Rt 4 SPMUTE IC11 NJM2211M Q38 KTC4075 FI3 LT450EW vo I X2 JTB450C24 4 gt DSDM DSC R Q65 LPF 450kHz CERAMI
3. e e TOP VIEW 5 5 8 8 8 8 8 E 3 8 5 444 44 4444 HHH Hmh RIS 21 E J11 e A to CHASSIS E 4528 656 unit W1 Su ae CHASSIS J1 z hee 5 cs ANT 12 5 Peo m GND Co y 5 M a 115 i cal X gt JS qu 11 of E s NN a oe Bg to CHASSIS 5 g Ba unit W3 eg Ca Ee co n 8 8 to 8 e J2 a gap E o unit J1 FD bees 19 ET ATT HL 5 5 E AND TMUTE E 2 E 5 a E 95 2 5 c H GND MOD GND P gt L 5 DETM 5 o SQL DET70 gt L o 6 to CHASSIS ud S5V unit W1 5 P UNLK lt R33 d PA 2 8 2 E yw Pl gu E J3 ed a EH Daves 14 DETO GND 13 J1 1 MICO GND Jh 1 SP Ng A ab 1138 sates GND
4. 25 1576 T106 2581143 5 2581201 5 25 4081 T106 S 2SC4226 T1 R25 Symbol FR Symbol B1143 Symbol B1201 Symbol BS Symbol R25 E E B B Fas B B B CER F C fas C E lt Ss 2SK1069 4TL 3SK292 FMW1 148 KRA304 Symbol PD KRC402 Symbol Symbol UK Symbol W1 KTA2015Y Symbol ZY Symbol NB 5 G2 B1 C1 c3 Fx D 5 61 2 C2 E E KRC404 Symbol ND KTC4075 BL Symbol LBL PMBFJ310 TPC6104 XP6501 AB KTC2875 B Symbol MB 4080 Symbol Symbol 10 Symbol 530 Symbol 5 KTC3880S Symbol HG B BL 5 D FL ie las 4 09 D D 2 B1 E D G 5 2 C2 DIODES 155372 AVR M1005C080MTABB DSA3A1 HSB88WSTR HSM88ASR TR Symbol N9 Color Green Symbol Silver line Symbol C3 green gt HVC350B HVC358B KDS122 KDS4148U KDV214E Symbol BO Symbol B2 Symbol C3 Symbol UH Symbol UO A E E Al gt gt IL L308CCB MA77 MA8036 L MA8062 M Symbol CC Symbol 4B Symbol 3_6 Symbol 6 2 J A E E 8 1 SECTION 9 LAYOUTS 9 1 AF UNIT 9 2
5. 70 5 2 2 s 2 s T pama maan pama ma ma I V65 m alls 1 EM 4 EM t MES 0 0 BT 5 V55 BOTTOM VIEW LOGIC BOARD vso to LCD vas 11 1140 HE 1 L Bony vas RIT g RIG r Ir T ANI 8 x I m 8 23383808 La t9 1 to 5515 _ nit WI f Tes JG u 1 ves a J5 ot l 4 X 2 Rim a xz A uas 1 pim a S a Ar 2 1 A E al iB veo TE g TOUT TTT OTT 2 I 1 12 RG a asa T T 1 5 4 1 v20 wt 1 m EH ELM ELA 5 1 1 8 n Lvs 1 sja 6 vso L RUT I m 588 ai 1 vio vas L S 819 nn DscEN 9 5 s unit 5 1 cl 57 8 a L 8 2 8 8 ic 1 1 4 I O vec OC 4 vo vas Jap 4 192 e GND a reg 45 H40 H35 H30 H25 H20 H15 H10 H5 K 95 fs 905 4 SITTT ET TTTTTTETTTTTI d car
6. 066 en 8 o lt e 9 amp Z uu 25 Q 2 HAILO z u lt B Fae 5 21100100008 1 HAILO wi u B q to CHASSIS ME tu e J lt unit W2 xoa a 20 to AF unit J2 BOTTOM VIEW MAIN UNIT x E 8 5 s 8 gt gt A SPA 8 SH n 065 w gt SIH OZH SZH OEH SEH StH OSH StH 09H S9H 04H SZH 08H S8H 06H S6H KANTENAN 821 lt U U ane E 8 EJ B B 878 E 1111 88 HB B B Dini S enl 2211 2 8 IEE 8 g 8 J SSH 09H S9H 04H SZH 08H S8H 06H S6H 0 OLIH SIH ear A 8 gt s gt
7. ADJUST AND MEASURE POINTS LOCATION MAIN UNIT R112 Transmit output power adjustment 32 R327 Deviation adjustment 5 4 RECEIVE ADJUSTMENT ADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT LOCATION VALUE ADJUSTMENT POINT ADJUST RECEIVE SENSITIVITY Regular receive Channel CH16 156 800 e SQUELCH counterclockwise Set the internal speaker OFF in the SET mode and connect a distortion meter with a 4 Q load to EXT SP lead receptacle Connect an SSG to the antenna con nector and set as Frequency 156 800 MHz Level 0 dBu 107 dBm Modulation 1 kHz Deviation x3 kHz Receiving Connect a DC volt meter or oscilloscope to the check point voltage 135 gt L36 gt L38 gt L39 Repeate two times or more SQUELCH Channel CH16 156 800 SQUELCH counterclockwise Connect an SSG to the antenna connector and set as RECEIVE SENSITIVITY except the signal level Level 4 dBu 111 dBm Receiving External speaker Squelch open Turn R214 clockwise to close the squelch Then turn R214 counter clockwise to set the point where the squelch opens RECEIVE SENSITIVITY DSC receive SQUELCH Max counterclockwise Connect an SSG to the antenna connector and set as HECEIVE SENSITIVITY except the frequency Freqency 156 525 MHz CH70
8. 4 O 4 FRONT UNIT gt 10 1 SECTION 11 VOLTAGE DIAGRAMS 11 1 FRONT UNIT FRONT LOGIC BOARD j 15 TC7ALCXR164245 33V aav T N 2 10 HS 8 B 85 WA Hs tat AD z 62 ES 5 46 WR 55 e 182 1A2 85 i 4 45 65 Ica 9 1 yxs 85 LBAT sp CP3 RS s GND GND Faz RS dh HNS8X2464TI 255 255 ZS E 58 wa RESETB 1 5 183 143 as RESETB 1 8 uf R37 15 74184 1 4
9. 152 V 1 5 471 V 470 220 V 22 682 V 6 8 k 474 V 470 151 V 150 122 V 1 2 k 272 V 2 7 471 V ERJ3GEYJ 471 V 222 V 562 V 470 V 4 471 V 470 681 V 680 683 V 68 k 683 V 68 k ERJ3GEYJ 331 V 330 101 V 100 ERJ3GEYJ 680 V 68 101 V 100 471 V 470 332 V 3 3 471 V 470 ERJ3GEYJ 222 V 2 2 k ERJ3GEYJ 221 V 220 k 6 4 1 1 2 4 4 2 5 2 7 70 70 2 6 47 0 0 ECJOEB1C223K ECJOEB1C103K ECJOEB1A104K TEESVA 1V 473M8R F931C225MAABMA ECJOEB1E102K ECJOEC1H150J TZC3R100A110R00 ECJOEC1H180J ECJOEB1E102K EEE1CA100SR ECJOEB1C103K ECJOEB1E102K ECJOEB1E471K ECJOEB1C103K C1608 JB 1A 105K T ECJOEB1E102K ECJOEB1E102K ECJOEB1E471K 1 0508 ECJOEC1H150J ECJOEC1H270J ECJOEC1H270J ECJOEB1E102K ECJOEC1H080C ECJOEC1H330J ECJOEC1H151J F931V474MAABMA ECJOEB1E102K ECJOEC1H1R5B ECJOEC1H1R5B ECJOEB1E102K ECJOEB1E471K ECJOEB1E471K ECJOEC1HR75B ECJOEB1E471K ECJOEB1E102K ECJOEC1H150J ECJOEB1E471K ECJOEC1H150J ECJOEC1H330J ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEC1H151J ECJOEC1H470J ECJOEB1E102K
10. 102 V 1 k 7030003440 102 V 1 91 6 45 7030003640 473 V 47 87 8 43 7 M Mounted side Mounted on the Top side Mounted the Bottom side S Surface mount 1790000620 77 84 1 36 6 1790000620 77 81 8 34 3 1750000711 15 HVC350BTRF E 80 7 30 2 1790000620 S MA77 TX 60 4 36 3 1 1 1 1 3 2 1 3 10 33 1 1 MAIN UNIT ORDER NO DESCRIPTION H V LOCATION MAIN UNIT ORDER NO DESCRIPTION H V LOCATION 7030003410 7030003420 7030003620 7030003600 7030003620 7030003400 7030003660 7030003370 7030003230 7030003370 7030003410 7030003550 7030003550 7030003320 7030003390 7030003350 7030003420 7030003660 7030003400 7030003600 7030003860 7030003860 7030003440 7030003480 7030003390 7030003560 7030003580 7030003340 7030003200 7030003720 7030003480 7030003500 7030003560 7030003440 7030003360 7030003240 7030003560 7310005270 7030003460 7030003270 7030003470 7030003470 7030003470 7030003470 7030007240 7030003670 7030003680 7030003860 7030003320 7030003620 7030003580 7030003560 7030003620 7030003280 7030004050 7030003480 7030003680 7030003270 7030003480 7030003680 7030003680 7030003560 7030003860 7030003240 7030003500 7030003320 7030003400 7030003200 7030003500 7030003380 7030003680 7030003460 7030003420 70300
11. signal from the expander AF UNIT IC27 pin 5 APC CIRCUIT T5V O Power module IC3 TEE T I Q10 D14 TX RX ANT From the buffer Q7 SW tothe anntena Q16 TMUTE O Q17 O 4 3 PLL CIRCUITS 4 3 1 VCO CIRCUITS MAIN UNIT A VCO Voltage Controlled Oscillator is an oscillator whose oscillating frequency is controlled by adding voltage lock voltage This transceiver has 2 VCO s RX VCO Q72 D51 D52 and TX CH70 RX VCO Q4 Q5 D1 D3 The RX VCO oscillates the 1st LO signals for voice communications channels reception and the TX CH70 RX VCO oscillates the transmit signal and the 1st LO signals for DSC channel reception 4 3 1 1 RX VCO The RX VCO Q72 D51 D52 output signals are amplified by the buffer amplifiers Q74 Q76 and applied to the 1st mixer D32 L40 L41 via the LPF L12 C78 C79 to be mixed with the received signals to produce the 21 7 MHz 1st IF signal A portion of the VCO output is applied to the PLL IC IC1 pin 2 via the buffer amplifiers Q74 Q75 and the BPF L75 C624 C625 4 3 1 2 TX CH70 RX VCO The TX CH70 RX VCO Q4 Q5 D1 D3 output signals are amplified by the buffer amplifiers Q6 Q7 While receiving The buffer amplified TX CH70 RX VCO output signals are applied to the 1st mixer D39 L55 L56 via the TX RX switch D7 is OFF D8 is ON and the LPF L65
12. amp ll 5 se uPD3140GS GND1 IN2 R10V R10V VCC2 25 eT D32 HSB88WS C626 R624 0 001 68 023 PMBFJ310 I E og 8 88 v Te 5 SAA SAS 5 gat E 845 845 5 Rx CH16 5 49 ES x WX10 9 207 R173 10k ST gel szl 8 ey z ei 5 amp a72 R606 L70 052 PMBFJ310 1k 39 HVCaseB t AW 507 100 C616 1 B10V 1 2x g 5 a x 0 75 KTC4080 E 555 ES Ber 8 BST 58 8534 Res 185 696 i2 9 EF e 2 2k 0 47n 0 001 is gar 88 61708 R542 5k esl ie gl gt 15 g ass 55 9 amp 8 z Hit 537 88 551 Be 521 x4 PT 352 888 8 ee JTB450C24 58 3 x m 8 8 8 8 pt 5 ast 8 Sa Bo Q 88 Ji 5T 8T 88 8 KTC4080 8 T 0 01 gt 1 14 me PMBFJ310 TA31136FNG Xo 2 Sg OSCIN e OSCOUT 4 C634 f 10 3 88 N FILOUT ve FILIN 076 188 C515 514 KTC4080 cre 18 440 5 0 001 BN 58 T JTB450024 asi Jl 3 292 1 079 gt 1 2 WV 25 a a 8 TA31136FNG ST BST 82 85 OSCIN OSCOUT MIXOUT vec IFIN 7 DEC sf FiLour FILIN 055 Ric 10 12V 2581201 TxoV E i 5 Explanatory notes I u 9 AV AF to AF la I unitJ2 5 25 054 i 58 J p TXLINE 1 I I SP11 CP14 a e i 1 1
13. 4 6 3 EXPAND IC AF UNIT IC28 MMUTEM Outputs hailer mute signal to the AF mute switch Q66 Low During mute Description Outputs MIC mute signal for intercom to AF mute switch IC5 Low During mute Outputs MIC mute signal for hailer to AF mute switch IC5 Low During mute Outputs MIC mute signal for HM 126B G to AF mute switch IC5 Low During mute Outputs the attached scrambler control signal via J3 High When the scrambler is activated Outputs scrambler by pass MIC signals signal to the AF mute switch 124 High When the attached scrambler is activated Low When the optional scrambler unit is not attached SCPASS Outputs scrambler by pass demodulated sig nals signal to the AF mute switch 1 4 High When the attached scrambler unit is not activated or not attached SECTION 5 ADJUSTMENT PROCEDURES 5 1 PREPARATION REQUIRED TEST EQUIPMENTS EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGE DC power supply Output voltage Current capacity 13 8 V DC More than 7 DC voltmeter Input impedance 50 DC or better RF power meter terminated type Frequency counter Measuring range Frequency range Impedance SWR Frequency range Sensitivity 0 1 30W 100 300 MHz 500 Less than 1 2 1 0 1 300 MHz Frequency accuracy 100 mV or better Standard signal generator SSG x1
14. Set the internal speaker OFF in the SET mode and connect a distortion meter with 4 Q load to the ex ternal speaker lead Receiving Connect a DC volt meter to the check point CP6 ADJUST AND MEASURE POINTS LOCATION MAIN UNIT Receive sensitivity DSC receive adjustment L35 Maximum voltage L36 L38 L39 Receive sensitivity regular receive adjustment L61 162 gt L63 two times or more CP6 Receive sensitivity DSC receive adjustment R214 Squelch adjustment Regular receive sensitivity adjustment SECTION 6 PARTS LIST e IC M504 REPLACEMENT 5 ORDER H V 1 NO DESCRIPTION LoCATION ORDER NO UNIT NAME 7030003320 5 101 V 100 121 1 74 3 0329140101 U M504 01 FRONT including HM 126B 3 7030003680 5 104 V 100 121 9 56 1 i 2 7030003680 S 104 V 100 k 118 3 56 1 SON eeu 7030003680 S 104 V 100 120 5 39 7030003440 S 102 V 1 124 7 39 1 7030003580 ERJ3GEYJ 153 V 15 122 6 38 4 LOGIC BOARD 7030003440 102 V 1 122 6 39 7 61 6 58 4 64 4 54 4 63 50 4 67 8 49 5 122 8 32 9 60 9 35 5 65 4 32 2 58 54 9 62 6 43 7 65 4 33 4 65 4 34 7 65 4 36 58 2 41 7 104 5 64 88 1 45 2 88 1 44 88 1 42 8 91 8
15. 4 5 POWER SUPPLY CIRCUITS MAIN UNIT converted 2 IF signal is output 3 passed through the 2nd IF filter 716 to suppress sideband noise The filtered 2nd IF signal is applied to the limiter amplifier IC14 pin 5 The amplified 2nd IF signal is FM demodulated at the quadrature detector IC14 pins 10 11 X4 and output from pin 9 The demodulated signals are applied to the DSC filters AF UNIT IC12 and AF circuits 4 4 4 DSC DECODE AF UNIT The demodulated signals from FM IF IC MAIN UNIT IC14 pin 9 are filtered at the LPF 1212 pins 1 3 and HPF IC12 pins 5 7 to extract the DSC signal The filtered signals are applied to the DSC decoder IC IC15 pin 2 The decoded DSC signal is output from pin 7 then applied to the CPU LOGIC BOARD IC1 pin 17 to control the transceiver according to the received DSC call content 4 4 5 DSC ENCODE LOGIC BOARD The DSC signal is generated by the CPU IC1 and output from pin 1 and applied to the modulation signal line via the buffer amplifier IC2 pins 5 7 The DSC signal is filtered at the LPF AF UNIT pins 1 3 level adjusted by R327 MAIN UNIT then applied to the modulation circuit MAIN UNIT D2 Q58 Q59 D39 Q63 Q61 1st IF Fl4 Go RF Received signals from the divider L35 C151 C152 Voltage from the connected power supply is routed to whole of the circuit in the transceiver via switches and
16. 887 87 11 2 11 3 MAIN UNIT 4 93V 554 TSV 5 Tx 4 80V 2 CHASSIS KTC4075 gez 83 5 EM J x ge Rx 1 95V 8 ANT 2 426V 1 ot Tic 88V 52 27 2 ANI 15 OO 84 88 us 544 5 amp gx 82 83 83 BET BAS 556 a J 17 aio O 20 z GND CP20 56 25 4226 0 5 S 5 2 Ver 150p K 014 8 x KTA2015 sel amp 8 sl sls aN 34 Er Sas Sig 85 ret 95 EM Bg 85 42 58 58 8 3 8 Ne 85 25 caa 8 T Tv 5296 ET MES as 4 I 2SC4226 NN 5 k ats 1080 C36 R34 12 R70 112 l 1 6001 56n 0 477 I AM os 75 KRC404 108 mo 4429 R111 28 EN e ga 0 10k 10k J 5 55 Re 4 83V X SEN Teo al g E 9114 251 8 351 2x 5681 ES
17. ECJOEB1C103K 4510008530 15 EEE1HA2R2SR 4030017490 15 C1608 JB 1A 105K T 4030017490 15 C1608 JB 1A 105K T 81 7 9 58 8 14 7 68 8 26 7 69 29 9 69 6 28 5 71 4 28 5 65 27 3 71 9 24 3 74 3 21 5 73 18 3 65 1 32 1 83 9 34 7 75 5 45 9 79 1 35 7 83 7 23 7 65 2 48 9 61 4 33 64 1 44 7 k k 7030003550 5 ERJSGEYJ 7030003680 5 ERJSGEYJ lt M Mounted side Mounted the side Mounted the Bottom side S Surface mount UNIT AF UNIT ORDER H V DESCRIPTION ORDER Hy DESCRIPTION NO 4030016790 ECJOEB1C103K 4030017490 C1608 JB 1A 105K T 4030017460 ECJOEB1E102K 4510008530 EEE1HA2R2SR 4030011810 C1608 JB 1A 224K T 4510008530 EEE1HA2R2SR 4030016930 ECJOEB1A104K 4030017790 ECJOEB1E682K 4030016790 ECJOEB1C103K 4030016970 ECJOEB1C223K 4030017760 ECJOEB1H222K 4030017790 ECJOEB1E682K 4510008540 EEE1CA100SR 4030016790 ECJOEB1C103K 4030017460 ECJOEB1E102K 4030011600 C1608 JB 1E 104K T 4030011600 C1608 JB 1E 104K T 4030011280 C1608 CH 1H 271J T 4030016790 ECJOEB1C103K 4030006900 C1608 JB 1H 103K T 4030007020 C1608 CH 1H 120J T 4030016790 ECJOEB1C103K 4030017480 C1608 JB 1A 474K T 4030009490 C1608 JB 1H 821K T 4030006880 C1608 JB 1H 472K T 4030007100 C1608 CH 1H 560J T 4030016790 ECJOEB1C103K 4510008540 EEE1CA100SR 4030011810 C1608 JB 1A 224 40300070
18. LdW 1 GND to AF unit 4 GND CP11 CP14 9 3 HM 126B G TOP VIEW 9 4 VR BOARD 9 5 SQL BOARD 9 6 DIAL BOARD TOP VIEW TOP VIEW TOP VIEW 3 ahan i iz 51 wi wi T wi I 3 3 GND 4 GND tz vow tz saw 7 tz 5 1 VOLI 1 5 I DIALA LOGI to LOGIC F t 1 GND 01000 Jz board J3 toLOGIC 1 7 board J3 9 7 LOGIC BOARD TOP VIEW Lay NA E DISTRSS psi MENU 1951 ie A rs fe POWER 5 A SCAN 16 R5 E a i RE KE a i p i zm gn xs i tite 5 n pt e BOTTOM VIEW DIAL BOARD BOTTOM VIEW SQL BOARD BOTTOM VIEW VR BOARD BOTTOM VIEW HM 126B G
19. Black Gray 2914 front panel assembly inc MP3 MP6 MP7 MP9 2914 front panel A assembly inc MP3 MP6 MP7 MP9 2345 A bush plate Screw PH BT M2 6 x 8 NI ZU 2914 earth spring O ring AC Knob N312 ZK Knob N312 B GRAY Knob N347 Knob N347 A Black Gray DESCRIPTION Connector IMSA 6065B 04Z097 PT1 Case BM7H LF Case BM7H LF 2914 VCO case 2577 DBM case 2914 VCO case 2577 DBM case 2345 plate Qk ck ak aN Gk SND sk N N IN AF UNIT ORDER NO 8900015060 8900015050 LOGIC BOARD 5030002390 8930058440 8210019060 8930058910 8930058900 SQL BOARD REF ORDER NO NO R1 7210003150 DIAL BOARD 2250000530 8900015040 VR BOARD REF ORDER NO NO R1 7210003150 ACCESSORIES 8900009041 6910013530 8010018154 8010020464 8810001490 8850000180 8850000500 8610010561 8820001271 8950005110 8810004700 8950000180 DESCRIPTION Cable OPC 1545 Cable OPC 1544 DESCRIPTION LCD HLM7784 010100 2577 LCD holder 2577 reflector 2577 LCD sheet Rubber sheet BB DESCRIPTION Variable resistor TP96N97 15SK 10KB 2685 DESCRIPTION Encoder TP90N1007AE20 20F 2914 Cable OPC 1543 DESCRIPTION Variable resistor TP96N97 15SK 10KB 2685 DESCRIPTION Cable OPC 891A Bead ZCAT2035 0930A BK 2345 mobile bracket 4 ZK 2345 mobile bracket C 4 Screw PH A M5 x 20 SUS Flat washe
20. 1C11 i 2140 vec amp 6518 VCCA 71 CS1B 817B33AMC 3 WP gt fo 1 8 88 55 95 1 z SCL separa 88 Fee Explanatory notes 587 88 1041186 146 5 24 vss SDA i 22 gdi mal GND GND VIN H DBO 11 38 DBO 33V DBT 12 187 1 7 DET VOUT os VOLTAGE LINE 188 DB2 18 36 DB2 5 ay DB3 14281 2 1 135 DB3 8 ls gt mem TXLINE gt 15 282 KE 85 ND ND v4 isi DB4 16 38 DB4 I DBS 17 A 32 DBS EXTOE 1 1 mamam AX LINE SP sp v2 22 15 31 DBS 19 voca Z DB6 mem COMMONLINE Hv o 285 DB7 20 28 DB7 ECK R 2B6 RA oe 29 28 85 m 22 ND P R119 23 287 2 7 26 cpa 58 PWRON PWRON 9 100k 288 2A8 St 24 Ybin 20 TDEG g RCV 4 4 SEND SEND Tes 22 4 9 VOUT rn to S 33V 22 100k Lco O Tes 8 3 15 FOG F0G G o para DB5 30622 FOGC DB4 DB4 T EVDATA O 9 EEEE gt S 083 ki BPN o B2 082 me ge WXDEC WXDEC 9 o DBI TTE RCV SQL sa DBO
21. 5 1 225M8R 4550007750 5 TEESVA 1 225M8R 4550007650 5 F931V105MAABMA 4550007650 S F931V105MAABMA 4550007650 S F931V105MAABMA 4550007650 S F931V105MAABMA 4550007650 S F931V105MAABMA 4030017460 5 ECJOEB1E102K 4510008540 5 EEE1CA100SR 4030017460 S ECJOEB1E102K 4030017460 5 ECJOEB1E102K 4030016790 4030016790 15 4030016790 15 ECJOEB1C103K 4510008540 5 EEE1CA100SR 4030016930 ECJOEB1A104K 4030016930 ECJOEB1A104K 4030016930 ECJOEB1A104K 4030017420 5 ECJOEC1H470J 4030017420 5 ECJOEC1H470J 112 5 11 3 4030017460 5 ECJOEB1E102K 126 2 16 1 M Mounted side T Mounted on the Top side B Mounted on the Bottom side 5 5 mount 94 7 42 1 100 2 41 5 138 3 40 4 138 3 37 6 100 5 57 4 61 1 19 6 75 6 38 9 123 27 3 123 28 3 124 3 32 7 100 5 58 3 101 9 60 9 102 8 60 9 103 7 60 9 104 6 60 9 105 62 9 107 2 64 134 4 59 4 137 4 63 3 115 6 61 117 4 61 139 3 73 9 59 5 54 59 3 43 2 59 3 41 4 64 8 52 1 65 2 50 4 56 8 58 59 5 54 9 63 5 56 9 80 6 55 71 2 68 8 71 2 66 6 71 2 64 4 78 5 55 76 4 55 74 5 60 72 3 60 70 1 60 130 9 28 5 128 9 31 4 73 6 29 7 74 6 31 1 88 4 26 7 89 24 8 133 1 28 5 135 1 31 4 119 5 58 4 59 5 34 6 59 5 37 3 113 5 12 8 1790001561 15 155372 TE85R F 125 9 35 1 1750001320 15 KDS4148U 59 5 52 6 1750001180 KDS122 RTK P 61 8 55 4 1730002360 S MA8062
22. S C2520C 1R2G A 1 2U 6200003141 5 NLV32T 150J 6200003071 5 NLV32T 1R5J 6130003000 S 617DB 1714 P3 6130003000 S 617DB 1714 P3 6200003141 5 NLV32T 150J 6200003031 S NLV32T R47J 6150003821 LS 440 LF 6150003821 LS 440 LF 6150003821 LS 440 LF 6200010770 C2520C R68G A 6200002601 S NLV25T 047J 6200001981 S NLV25T 1R0J 6200001981 S NLV25T 1R0J 6200003101 S NLV32T 3R9J 6200008280 S 0 30 1 7 7TL 50N 6200003101 S NLV32T 3R9J 6200009560 MLG1608B R10J T 6200009560 MLG1608B R10J T 6200006991 S ELJRE 56NGFA 6200009560 MLG1608B R10J T ORDER NO DESCRIPTION LOCATION 1130007610 5 uPD3140GS E1 DS8 100 3 26 3 1110003201 S TA31136FNG EL 108 7 11 1 1150002170 S AV35 l 1110003201 S TA31136FNG EL a4 101 5 51 4 37 1 5 6 48 9 5 6 57 9 8 5 57 7 5 4 69 6 3 9 37 1 21 5 48 9 21 5 53 5 28 4 53 5 36 9 1530003900 5 4075 BL RTK P 1590003580 5 KRC404 RTK P 1530003950 5 4080 1530002920 5 25 4226 1 R25 1530002920 5 25 4226 1 R25 1530003950 5 4080 1530003950 5 KTC4080 Y RTK P 1530002920 5 25 4226 1 R25 1510001090 5 KTA2015Y RTK P 1590000670 5 FMW1 T148 1590003580 5 KRC404 1590003680 5 KRC402 RTK P 1580000700 5 3SK292 TE85R 1560000990 5 PMBFJ310 1560000990 5 PMBFJ310 1530003890 S KTC3880S Y RTK P 1590003580 S KRC404 RTK P 1530003900 5 4
23. Sht SP 2 2 5 s el GIG MICI SCON T 5 X gni OPSTB OPTIN 878 CHASSIS 2 NC HV 2 SDATA GND den D gm m 2 5 R57 GND 55 2 _5 5V 8 em gn 8 PWRON e to option GE rura SEND 5 SCRAMBLER unit 5 ait Bg c ae 3 6 cm zd GND 3 858 va B VOL2 BEEP 2 Es 258 14 FOG ma 8 i 5 FOGC E BT Ena TEE rt i BPFV_FWXDEC i 3 T Tee bts ar SQL DSDM men RA GEJ ma EST a 2 J mad Rig TXDET 2570 5 zl lE lt 4 BB mmo MICG 5 gud S RES rz e A MIC mi IF 8 E jr EXTRXD 23 E 218898856 sem EL EXPO 4 4 D du fn PSTB PDA Ed 246 i 8 Ni POK E nan 2 j RAN gt B EXTOE ipsa B o 8 39 40 gt 5 IPP Rt 1 5 5 ak 5 Imm qe 19 d iB 5 bl E ibm ES J2 8 p to CHASSIS g Eg ir 14 J12 MESE unit W3
24. 1510000510 5 25 1576 T106R 1560000810 5 2SK1069 4 TL 137 5 69 5 128 7 67 8 129 3 70 9 123 1 36 62 5 52 6 63 1 48 5 60 32 8 62 8 32 5 62 8 35 6 7030003680 15 104 100 7030003680 104 V 100 7030003680 104 V 100 UJ UJ UJ UJ UJ UJ UJ UJ UJ Q U U U2 UJUUUUUUUU 4510008540 5 EEE1CA100SR 4030016930 ECJOEB1A104K 4030017460 5 ECJOEB1E102K 4030017730 5 ECJOEB1E471K 4030016790 4030016790 15 4030011600 5 C1608 JB 104 4030016790 5 4030016930 15 ECJOEB1A104K 4030016930 15 ECJOEB1A104K 4030016790 4030016790 15 4030016790 15 ECJOEB1C103K 4030016790 5 4030016790 15 4030016790 15 4030017480 5 C1608 JB 1A 474 4030017480 C1608 JB 1A 474 4030017030 5 ECJOEB1A273K 4030017400 5 ECJOEC1H220J 4030017400 5 ECJOEC1H220J 4030017460 5 ECJOEB1E102K 4030017920 5 ECJOEB1A683K 4030016790 4030016930 15 ECJOEB1A104K 4030016930 ECJOEB1A104K 4030017460 5 ECJOEB1E102K 4030017460 5 ECJOEB1E102K 4030017460 5 ECJOEB1E102K 4030017460 5 ECJOEB1E102K 4550007750 5 1 225M8R 4550007750 5 TEESVA 1V 225M8R 4550007750
25. 4 mm _ 5 po tary a dy 1 1 r 8 Bg oF V25 gah E E gs e vis EST 1 E 15 en E m 2 5 1 221 vs 4 x MB NB A H155 H150 H145 H140 H135 H130 H125 H120 H115 H110 H105 H100 H95 H90 H85 H80 H75 H70 H65 H60 H55 H50 H45 H40 H35 H30 H25 H20 15 5 12 1 8 2 40 1 10 46 J4 J1 m a J3 m OG S gt gt 545 gle o 2328920605 amp Exo gt gt Ol 50 to i o to DIAL SQL VR boards to Microphone zu 2 22 126 126 O L lt 0 2 Z o a o a to unit J1 99 SECTION 10 BLOCK DIAGRAM
26. 4510008560 EEE1HAR47SR 4510008560 EEE1HAR47SR 4030018900 474 4030016930 ECJOEB1A104K 4030018900 474 LOCATION 55 7 50 82 27 8 66 3 53 4 75 6 49 3 73 4 56 4 78 1 58 6 43 5 45 7 40 5 50 7 50 6 45 6 42 4 51 6 47 6 49 6 48 4 48 86 3 19 5 38 2 37 7 39 5 36 6 69 1 47 5 81 8 39 2 70 5 38 5 63 8 42 2 58 7 19 9 64 6 21 5 38 1 20 2 69 5 26 4 68 9 33 3 60 5 33 8 63 9 34 9 62 25 6 65 22 5 68 9 41 3 62 2 47 5 60 5 48 8 25 2 11 7 58 2 6 2 18 8 10 2 26 7 47 5 26 7 45 6 68 2 4 9 1 126 3 REPLACEMENT UNITS 63 8 164 ORDER UNIT NAME COLOR 61 3 16 5 56 6 14 1 0800005503 HM 126B 3 ACC USA BLACK 2 0800009000 HM 126G ACC USA 01 GRAY 10 4 38 3 28 5 20 304 19 MAIN UNIT 14 4 54 9 ORDER 21 7 56 5 DESCRIPTION LOCATION 45 9 2 2 7010006890 42387 7010006880 3 6 39 4 7010006900 R20J 15 k 7010006910 R20J 33 k 7070001110 15 ERG2SJ NO 4030016930 ECJOEB1A104K 4030017900 ECJOEB1C123K 4030017040 ECJOEB1A333K 4030017040 4030017730 ECJOEB1E471K 4030016790 ECJOEB1C103K 4030016790 ECJOEB1C103K 4030016790 ECJOEB1C103K 4030016790 ECJOEB1C103K 4030016790 ECJOEB1C103K 4030011810 C1608 JB 1A 224K T 4030016930 ECJOEB1A104K 4510008540 EEE1CA100SR 4340000310 ECHU 1C 333JX5 4030006870 C1608 JB 1H 222 4030011600 C1608 JB 1E 104K T 4030006900 C1608 JB 1H 103K T 4510008570 EEE1CA220SR LOCATION 43 5
27. 7030003680 S ERJ3GEYJ 7030003790 S ERJ3GEYJ 7030005321 S ERA3YED 7030003200 S ERJ3GEYJ 7030006091 S ERA3YED 7030003860 S ERJ3GE JPW V 7030003640 473 V 47 7030003680 104 V 100 7030003560 ERJ3GEYJ 103 V 10 7030003480 ERJ3GEYJ 2 2 7030003540 ERJ3GEYJ 6 8 69 9 26 6 70 9 29 7 68 7 23 8 72 26 6 73 7 30 9 70 9 30 9 74 26 6 74 25 3 74 24 74 3 22 6 76 7 18 5 77 7 30 6 81 6 30 6 79 3 18 78 18 5 76 4 30 6 79 30 6 58 3 41 62 7 53 8 57 9 39 6 60 3 40 3 61 5 42 3 61 4 53 8 69 7 33 9 59 6 53 8 64 1 43 4 58 3 53 8 57 53 8 83 8 27 8 85 1 27 8 70 1 48 5 65 8 55 7 75 7 53 73 4 53 5 72 7 59 7 70 1 59 7 71 4 59 7 71 3 48 5 80 3 30 6 44 3 46 8 41 5 46 8 41 6 48 8 40 5 51 9 44 3 48 1 44 3 51 9 46 5 49 9 80 6 18 5 81 9 17 1 83 2 17 1 36 6 35 6 84 5 15 6 40 1 29 4 68 9 37 9 70 6 42 4 69 44 4 79 1 39 4 79 1 39 4 67 3 37 2 59 7 41 3 7030003680 104 V 100 7030003590 183 18 7030003860 ERJ3GE JPW V 7030003860 S ERJ3GE JPW V 7030003860 S ERJ3GE JPW V 7030003560 S ERJ3GEYJ 103 V 7030003560 S ERJ3GEYJ 103 V 7030003320 S ERJ3GEYJ 101 V 10 10 10 9 7030003620 5 333 V 33 k 47 7030003640 473 V 7030003680 15 104 V 100 7030000010 15 MCR10EZHJ JPW 000 7030000010 15 MCR10EZ
28. ECJOEB1E102K 15 4 27 9 12 7 32 5 12 7 34 3 18 27 5 16 7 27 9 19 6 30 1 46 9 37 7 51 3 36 1 56 4 38 3 87 8 51 7 91 9 47 89 9 50 2 94 1 49 1 57 2 23 5 100 1 43 6 106 4 59 2 98 9 47 3 50 6 29 4 100 1 40 8 100 1 34 4 106 6 50 2 102 4 20 1 92 9 15 3 91 5 13 3 68 6 17 9 71 9 15 72 6 13 84 1 12 2 77 5 8 8 85 14 7 82 9 15 3 80 3 18 78 7 19 9 89 9 19 1 91 9 18 6 93 9 17 8 59 4 14 7 57 4 15 4 55 7 12 1 58 5 12 1 58 13 4 106 8 27 7 99 2 21 96 23 8 96 3 35 2 96 3 37 4 98 32 9 94 7 28 3 92 4 24 7 94 3 29 6 87 9 45 2 95 7 43 6 90 5 39 9 89 7 43 4 85 5 41 72 3 42 77 2 42 4 81 8 32 86 5 42 2 78 3 35 6 70 8 37 1 74 8 34 1 75 33 1 78 33 2 79 8 33 1 80 3 29 82 9 30 9 83 6 29 6 84 6 33 1 85 2 29 9 78 6 29 7 79 9 27 7 74 3 25 7 75 8 28 8 76 30 7 72 28 6 69 1 33 2 65 3 38 4 69 1 35 5 65 3 37 4 60 7 33 5 51 4 12 5 48 11 8 69 4 52 4 74 2 51 9 72 54 9 76 8 53 6 75 8 53 6 70 3 55 8 M Mounted side Mounted the Top side Mounted the Bottom side 5 mount MAIN UNIT ORDER NO DESCRIPTION H V MAIN UNIT ORDER LOCATION P NO DESCRIPTION H V LOCATION 4030017620 4030017620 4550007520 4030017460 4030017730 4030017460 4510008570 4030016790 4550007520 4010008070 4030006860 4030006860 4010005430 4030017460 4
29. power controller MAIN UNIT Q17 High 25 W Low 1 W Description Input port for PLL unlock signal from the PLL IC MAIN UNIT IC1 pin 7 High While the PLL is unlocked Input port for optional unit attachement detect signal VIA J3 pin 5 AF UNIT Low While the optional scrambler unit is attached Input port for DIAL DIAL BOARD 051 Input port for squelch adjustment VR SQL BOARD 1 Input port for low power supply voltage detect signal Input port for transmit output power level from the power detector MAIN UNIT 012 013 Input port for noise signal from the FM IF IC MAIN UNIT IC2 pin 14 Input port for decoded weather alert signal from the FM IF IC IC2 pin 9 via LPF Q38 Outputs serial data to the PLL IC MAIN UNIT 5 Outputs clock signal to the PLL IC MAIN UNIT 4 4 6 2 UNIT 27 Description Outputs transmit mute signal to the TX mute switch MAIN UNIT Q16 High During mute ATT Outputs attenuator control signal to the attenuator MAIN UNIT D22 High During attenuator ON RMUTEM Outputs AF mute signal to the AF mute switch IC4 pin 6 Low During mute HAMUTE Outputs hailer mute signal to the hailer amplifier controller Q66 Low During mute SPMUTE Outputs speaker mute signal to the AF mute Switch Q65 High During mute RMUTEH
30. 1 ANTENNA SWITCH MAIN UNIT The received signals from the antenna connector are passed through the antenna switch which toggles the receive RX line and transmit TX line The received signals from the antenna connector are passed through the low pass filter LPF L21 L22 126 129 and the antenna switch D14 and D21 are OFF While transmitting voltage on the T5V line is applied to D14 and D21 and these are turned ON Thus the TX line is connected to the antenna and RX line is connected to the GND to prevent transmit signal entering While receiving no voltage is applied to D14 and D21 and these are turned OFF Thus the TX line and the antenna is disconnected to prevent received signals entering and the RX line is disconnected from the GND and the received signals are passed through the LPF L31 C142 C143 The filtered signals are then applied to the RF circuits 4 1 2 RF CIRCUITS MAIN UNIT The RF circuit amplifies received signals within the frequency coverage The received signals are filtered at the bandpass filter BPF and amplified at the RF amplifier The received signals from the antenna switch D14 and D21 are OFF are divided into the signals for voice communications and the signals for DSC channnel at the divider L35 C151 C152 The divided signals voice communications are applied to the tuned RF amplifier 021 026 029 136 L37 C161 C162 The amplified signals are then applied to the double bala
31. 104K T ECJOEB1C103K ECJOEB1A104K ECJOEB1E102K ECJOEB1A104K ECJOEC1H3R5B ECJOEC1H080C ECJOEB1E102K ECJOEC1H3R5B ECJOEB1E102K ECJOEB1E102K ECJOEC1H120J ECJOEC1H2R5B ECJOEC1HOR5B 1 1 5 ECJOEC1H080C ECJOEB1C103K ECJOEB1E471K ECJOEC1H080C ECJOEB1C103K ECJOEC1H330J ECJOEC1H060C ECJOEB1C103K ECJOEB1E102K 1 20 ECJOEB1C103K ECJOEC1H1R5B ECJOEB1E102K ECJOEC1H010B ECJOEB1C223K ECJOEB1E102K ECJOEB1C103K ECJOEC1H101J ECJOEC1H100C ECJOEC1H100C EEE1CA100SR ECJOEB1C103K ECJOEB1E271K ECJOEB1E271K ECJOEB1E102K ECJOEB1A104K ECJOEB1A104K ECJOEC1H220J ECJOEB1A104K ECJOEB1E102K ECJOEB1E102K C1608 JB 1A 224K T C1608 JB 1E 104K T ECJOEB1A104K ECJOEB1E102K ECJOEC1H470J ECJOEC1H220J ECJOEC1H220J ECJOEC1H101J ECJOEB1E471K ECJOEC1H101J ECJOEB1E471K AAAAAAA AAAAAAAAAAAAAAANAANAAAANAAAAAAAAAAAANAAAAAAAAAAAANAAAAAAAAAAAAAAAAAAA 78 56 7 78 58 6 65 6 49 2 64 3 56 2 57 2 59 8 55 4 59 8 55 4 56 54 1 44 8 57 3 44 3 49 9 52 2 41 1 45 6 37 4 40 3 63 1 49 6 50 6 47 6 52 3 46 1 54 1 42 8 41 9 40 3 45 40 9 49 2 39 8 13 6 36 4 20 1 33 1 10 5 33 1 9 3 27 1 9 3 28 1 4 3 18 5 8 8 11 4 8 8 10 3 3 1 13 8 7 3 16 7 7 3 17 7 16 10 6 14 1 10 6 19 4 14 1 10 1 12 6 11 11 4 20 4 12 9 23 12 4 21 7 10 5 23 11 5 24 8 11 5 26 1 10 5 24 8 12 4 28 4 12 8 61 19 3 31 5 11 5 62 1 15 3 63 9 9 8 63 9 10 8 62 1 13 5 64 5 13 5 44 9 5
32. 44 7 47 6 43 1 42 6 40 4 43 6 40 4 43 6 38 6 51 4 42 3 43 6 36 7 45 36 3 51 6 35 9 49 6 35 45 7 24 51 4 27 7 57 7 26 6 45 2 33 7 35 2 32 9 36 8 31 41 6 36 6 15 10 AWWUWAAAWAAAAAAAAAA 6510025180 5 96395 400 65 5 10 6510025190 IMSA 9639S 20Y905 26 4 14 5 6510016431 53307 1471 46 5 28 5 6510003381 BO2B EH S LF SN 6510021441 B6B ZR SM4 TF LF SN 84 8 53 3 6510025500 OP 12 6510025500 OP 12 6510018961 B2B PH SM4 TB LF SN 18 8 35 8 6510003381 2 5 LF SN 8900015060 1545 PO 5N40L1 10 8900015050 1544 P0 5N20L170 AWAWAAAAAAAAAAAAAAAAAAAAAWWW AA FF AAA AAA AAA 8 1 38 3 8 1 36 6 9 4 38 3 13 1 40 14 7 40 4010008030 00104 471K 50V 4030017280 C1608 CH 1H 471 28 5 20 13 9 53 8 6510022450 5078 5 49 3 32 3 2 4 50 9 3 3 50 9 11 2 20 2 9 9 24 3 9 8 25 4 5 6 32 6 6 7 32 1 12 2 30 1 72111 87 7 56 5 83 6 43 7 88 6 37 2 90 5 49 8 89 8 34 1 74 7 42 6 7 8 41 4 M Mounted side Mounted the side Mounted on the Bottom side 17 8 18 3 5 5 mount 7700002120 KUC2123 030245 2260002330 SW SKHHLP014A 2260002340 SW SKHHAM024A 2260002340 SW SKHHAM024A 2260002340 SW SKHHAM024A 2510001080 SP S36G04K 09 9029701901 TUBE IRRAX 0 7 d L4 mm 91 4 35 92 4 41 92 4 45 8 97 1 49 7 92 4 20 5 42 1 45 3 41 9 42 6 41 4 28 3 AWAWWWAAAAAAAAA
33. 61 61A 156 075 156 075 80 80A 157 025 157 025 5 RX only 162 450 16 16 16 156 800 156 800 62 156 125 160 725 81 157 075 161 675 6 RX only 162 500 171 17 171 156 850 156 850 62 156 125 156 125 81 81 157 075 157 075 7 RX only 162 525 18 156 900 161 500 63 156 175 160 775 82 157 125 161 725 8 RX only 161 650 18 18 156 900 156 900 6 156 175 156 175 82 82 157 125 157 125 9 RX only 161 775 19 156 950 161 550 64 64 156 225 160 825 83 83 157 175 161 775 10 RX only 163 275 Low power only high power DSC operation only NOTE Simplex channels 3 21 23 61 64 81 82 and 83 CANNOT be lawfully used the general public U S A waters SECTION 2 INSIDE VIEWS LOGIC BOARD gom vm ite Dimmer control circuit 25 1201 Q2 Q3 KTC4075 System clock oscillator X1 CR 790A Reset IC IC4 S 80942CNMC G9C CPU IC1 M30622MEP 326GP Photo coupler 6 PC357N6J000F EEPROM 58 24641 0 x 2 6442 AN 7A94 8 MAIN UNIT AF UNIT AF power amplifier Antenna switch IC9 LA4425A D14 D21 L308CCB S5V regulator IC10 KIA7805API 1st mixer DSC channel D39 HSB88WS 1st mixer Normal channels r 877798 WOO 032 HSB88WS DSC decord
34. 8 V DC approx Dimensions Projections not included Weight Approx TRANSMITTER Output power At 13 8 V DC Modulation Maximum frequency deviation Frequency stability Spurious emissions Adjacent channel power Audio harmonic distortion Residual modulation Audio frequency response Microphone impedance RECEIVER Receive system Intermediate frequencies Sensitivity Squelch sensitivity Adjacent channel selectivity typ Spurious response typ Intermodulation rejection ratio typ Hum and Noise typ Audio frequency response Audio output power Audio output impedance SPECIFICATIONS TX 156 025 157 425 MHz RX 156 050 163 275 MHz CH70 RX 156 525 MHz 16KOG3E 16K0G2B DSC 50 Q Nominal 4 F to 140 F 13 8 V DC 15 negative ground Receiving 1 5 A at max audio Transmitting 5 5 A at 25 W 6 1 2 W x4 11 32 H x4 27 32 D 3 Ib 19 oz 25 W High 1 W Low Variable reactance frequency modulation 5 0 kHz Less than 10 ppm 4 to 140 F Less than 70 dBc at 25 W Less than 56 dBc at 1 W More than 70 dB Less than 10 at 60 deviation More than 40 dB 1 dB to 3 dB of 6 dB oct from 300 Hz to 2500 Hz 2 Double conversion superheterodyne system dst IF 21 7 MHz 2nd IF 450 kHz Normal RX 1st IF 31 05 MHz 2
35. 85 5 851 1k SQLV SQLV 5 GND SE Ek 9 e 35 9 857 58 s 25 4081 gt J 1 KICZW14FK PWR COMTXD 1 L5V 1 4 2 7 EXTTXD 0 1007 20 MEA 2 w 1 Bs zz gt OUT 4 7k R43 3 VOD 12K vss J6 2SA1576 to microphone En ET 126 GND ay 88 88 ag SQL BOARD SI BS 8T 25 eu Mp pa 2SK1069 8 HANG 49V ee EXTRXD 5 NMRXD 8 5 figs S B Sx 1k 5 55 LSV gn J4 ES 8 8 16 Per 85 8 PC357N6J000F R93 HANG s 820 EP81 TP96N97 D 82 to microphonel MICG 5 126 NMEAI g 158 u 19 199 9 gs 5 T 88 NMTXD 827 887 8 85 4 pus NMRXD 1 5 ree T J5 BUSY 85 28 qase 65 __ to CHASSIS 58 05 NMEAO unitWi oF 96 25 4081 GND o 851 88 8 I NMTXD ar 8 2 85 KRC404 7 TP96N97 s 11 2 AF UNIT 1015 NJM2211M I ve CAP IN LM2904PWR LOCK R d GND LOOP R573 RS74 NC 10k 10k FSK Be 85 1 29 NJM2107F ilv 2 o cowr Ol CONTA R239 002 104 33k 2 1026 E VSS voa KIC7Ws3FK C236 osv INH VEE CHI GND A 8 R2
36. C535 C537 to be mixed with the received signals to produce the 31 05 MHz 1st IF signal While transmitting The buffer amplified TX CH70 RX VCO output signals are applied to the transmit amplifiers via the TX RX switch D7 is ON D8 is OFF A portion of the VCO output is applied to the PLL IC IC1 pin 19 via the buffer amplifiers Q3 Q6 and the BPF L2 C34 C35 4 3 2 PLL CIRCUIT MAIN UNIT The PLL circuit provides stable oscillation of the transmit and receive 1st LO frequencies The PLL output frequencies are controlled by the divided ratio N data from the CPU RX VCO LOOP The RX VCO output signals from the BPF L75 C624 C625 are applied to the PLL IC IC1 pin 2 The applied signals are divided at the prescaler and programmable counter according to the PDATA signal from the CPU LOGIC BOARD IC1 pin 49 The divided signal is phase compared with the reference frequency signal from the reference frequency oscillator X1 at the phase detector The phase difference is output from pin 8 as a pulse type signal after being passed through the internal charge pump The output signal is converted into the DC voltage lock voltage by passing through the loop filter 602 R603 R606 C602 C603 C606 The lock voltage is applied to the variable capacitors D51 and D52 of RX VCO and locked to keep the VCO frequency constant TX CH70 RX VCO LOOP The output signal of TX CH70 RX VCO from
37. ERJ3GEYJ 103 V 474 V m 821 V 820 333 V 33 k 22 k 153 V 15 k 471 V 470 3 3 1 10 NTCG16 4LH 223JT RH03ADCS24X 47 ERJ3GEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ ERJ3GEYJ ERJ3GEYJ ERJSGEYJ 822 V 8 2 b 103 V 102 V 10 1 AAA AAA AAA A445 4444444444 5 Ea 84 1 42 7 85 4 43 2 74 2 40 7 70 5 42 4 74 2 42 4 76 37 73 1 37 78 5 32 78 7 34 3 79 8 36 2 86 3 31 7 71 7 26 6 77 9 26 73 9 31 6 73 9 29 8 75 9 26 6 71 1 33 1 69 4 30 9 63 8 37 4 64 6 35 2 58 8 23 5 52 15 5 60 34 7 69 8 53 5 73 52 7 69 8 54 7 74 2 54 2 78 54 1 69 8 56 9 58 8 50 7 64 8 57 7 60 48 55 3 46 4 56 1 42 6 53 6 49 2 58 1 41 8 49 1 46 6 46 4 44 1 49 1 42 9 51 1 42 2 49 9 54 9 49 9 53 6 43 7 45 6 42 4 45 6 34 9 38 3 27 4 58 7 48 2 40 9 11 8 30 2 5 6 11 2 4 4 11 4 3 1 17 7 3 1 11 4 2 14 1 5 8 17 7 8 4 14 3 6 8 11 2 17 6 15 2 15 6 35 4 21 2 34 21 5 12 3 26 3 12 3 32 9 14 4 33 8 11 5 60 6 6 5 64 12 72 6 3 9 96 2 2 2 63 3 14 97 8 8 4 99 8 5 9 99 4 3 9 102 3 12 6 98 9 12 6 114 3 9 3 111 6 7 5 114 3 13 1 109 4 20 5 112 9 20 7 113 18 109 15 5 105 7 16 3 113 6 22 7 120 4 31 6 80 42 62 45 7 61 3 44 4 35 5 31 9 35 5 30 6 107 8 43 14 1 26 9 13 1 29 5 7030003560 7030003620 7
38. MIC signals are passed through the MIC line switch IC3 pins 1 2 and pre emphasis circuit R307 C305 to obtain 3 dB of characteristic The pre emphasized signals are then applied to the IDC Instantaneous Deviation Control IC8 pins 6 7 circuit which limits the amplitude of MIC signals to prevent over deviation The amplitude limited MIC signals are passed through the LPF IC8 pins 1 3 which suppresses 3 kHz and higher audio components The filtered MIC signals are passed through the deviation adjustment pot MAIN UNIT R327 then applied to the modulation circuit MAIN UNIT D2 4 2 2 MODULATION CIRCUIT MAIN UNIT The modulation circuit modulates the VCO oscillating signal with the AF signals from the microphone The MIC signals from the microphone amplifier circuits are applied to the D2 of TX CH70 RX VCO Q4 Q5 D1 D3 and modulate the VCO oscillating signal by changing the reactance of D2 The modulated VCO output signal is buffer amplified by Q6 and Q7 then applied to transmit amplifiers as a transmit signal via the TX RX switch D7 is ON D8 is OFF 4 2 3 TRANSMIT AMPLIFIERS MAIN UNIT The output signal of TX CH70 RX VCO is amplified to transmit output power level by the transmit amplifiers The transmit signal from the TX RX switch D7 is applied to the YGR amplifier Q10 The amplified transmit signal is applied to the power module pin 1 and amplified to the transmit output level The power
39. 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 ELE 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 CER S CER S CER S ELE S CER S TAN S TAN S TAN 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 CER S CER S CER S CER S CER CNR S CNR 5 5 ECJOEB1A104K ECJOEB1E102K EEE1CA100SR EEE1CA100SR ECJOEB1E102K EEE1CA100SR C1608 JB 1E 104K T ECJOEB1A104K ECJOEC1H221J ECJOEB1E102K ECJOEB1E102K ECJOEB1A104K ECJOEC1H070C ECJOEC1H3R5B ECJOEC1H070C ECJOEB1E102K ECJOEC1HOR5B ECJOEC1H080C ECJOEC1H020B ECJOEC1H030B ECJOEB1E102K ECJOEC1H220J ECJOEB1C223K ECJOEB1E102K ECJOEC1H100C ECJOEB1E102K ECJOEB1C223K ECJOEB1E102K ECJOEB1C103K ECJOEB1E102K ECJOEB1E102K ECJOEC1H150J ECJOEB1E102K ECJOEC1H101J EEE1CA100SR ECJOEB1C103K ECJOEB1E102K ECJOEB1A104K ECJOEB1A104K ECJOEB1E102K ECJOEB1E102K C1608 JB 1A 224K T C1608 JB 1A 224K T ECJOEC1H020B ECJOEC1H080C ECJOEC1H020B ECJOEB1C103K ECJOEC1H050B ECJOEC1H180J ECJOEC1H030B ECJOEC1H180J ECJOEC1H100C EEE1CA100SR C1608 JB 1A 224K T TEESVA 1V 683M8R 931 225 TEESVA 1V 683M8R ECJOEB1E102K C1608 JB 1E 104K T ECJOEC1H150J ECJOEC1H100C ECJOEC1H150J ECJOEC1H100C ECJOEC1HR75B ECJOEB1E102K ECJOEC1H050B ECJOEB1E102K ECJ
40. amplified transmit signal is output from pin 4 and passed through the LPF L19 C121 C124 to filter out the harmonic components The filtered transmit signal is passed through the antenna switch D14 and D21 are ON and another LPF L21 L22 C126 C129 before being applied to the antenna connector CHASSIS J1 4 2 4 APC CIRCUIT MAIN UNIT The APC Automatic Power Control circuit stabilizes transmit output power to prevent transmit output power level change which is caused by load mismatching or heat effect etc The APC circuit also selects transmit output power from high and low power A portion of the transmit signal is detected at the power detector circuits D12 D13 and converted it into DC voltage which is in proportion to the transmit output power level The detected voltage is applied to the base terminal of differential amplifier Q15 The divided voltage of the T5V line is applied to another base terminal as the reference voltage The differential amplifier compares the detected voltage and reference voltage and the difference of the voltage controls the bias of the power amplifier module Q14 to reduce increase the gain of transmit power amplifiers for stable transmit output power The change of transmit output power is carried out by the power controller Q17 using H L signal from the expander AF UNIT IC27 pin 4 The transmit power muting is carried out by the TX mute switch 016 using the
41. regulators Q61 Q62 AF power amplifier for ext speaker AF UNIT IC9 LCD dimmer controller LOGIC BOARD Q1 02 DSC encoding buffer LOGIC BOARD 2 etc S5V DSC decoder AF UNIT IC 15 etc Q52 Q57 Voltage line Control signal from the CPU IC1 4 IC10 Regurator 4 6 PORT ALLOCATIONS 4 6 1 CPU LOGIC UNIT IC1 Description Outputs DSC encode signal to the LPF AF UNIT IC8 pin 3 Outputs beep sounds to the AF power amplifier IC9 pin 1 EXTSTB Outputs PLL strobe signal to the PLL IC MAIN UNIT pin 3 Outputs strobe signal to the expand IC s AF UNIT 27 1 28 pin 1 OPSTB Outputs strobe signal to the attached optional scrambler unit via the option connector AF UNIT 3 pin 6 DSDM Inputs decoded ATIS DSC signals from the DSC decoder AF UNIT IC11 pin 7 DSD70 Inputs decoded DSC signals from the DSC decoder AF UNIT IC15 pin 7 PWR Input port for the PWR key Low When the key is pushed FOGC Outputs fog horn signal mute signal to the fog horn mute switch AF UNIT IC4 FOG Outputs fog horn sound to the fog horn mute switch AF UNIT ICA PWRON Outputs control signal to the power controller AF UNIT Q61 Q62 SEND Outputs T5 line control signal to the T5V controller MAIN UNIT Q52 Q57 RCV Outputs R10V line control signal to the R10V regulater MAI
42. switch ON and OFF A portion of the demodulated AF signals from the FM IF IC IC2 pin 9 are passed through the squelch threshold adjust ment pot R214 to be adjusted its level The level adjusted AF signals are passed through the noise filter IC2 pins 7 8 R211 R214 R220 C211 C212 217 219 The filtered sig nals are then applied to the noise amplifier section in the 2 to be amplified the noise components only The amplified noise components are converted into the pulse type signal at the noise detector section and output from pin 14 as the SUAL signal The 500 signal is applied to the CPU LOGIC BOARD IC1 pin 91 and the CPU outputs EXSTB signal to the expand IC AF UNIT 1227 pins 1 15 according to the SQL signal level Then the expand IC out puts RMMUTEM signal from pin 7 to the AF mute switch AF UNIT IC4 pin 6 and outputs SPMUTE signal from pin 12 to the AF mute switch Q65 to cut off the AF line 4 2 TRANSMITTER CIRCUITS 4 2 1 MICROPHONE AMPLIFIER CIRCUITS AF UNIT The AF signals from the microphone MIC signals are filtered and level adjusted at microphone amplifier circuits The MIC signals from the microphone are passed through the MIC mute switch IC5 pins 10 11 and the electric volume IC13 pins 7 8 which adjusts the MIC signal level 2microphone sensitivity The level adjusted MIC signals are then applied to the MIC amplifier IC7 pin 2 The amplified
43. the BPF L2 C34 C35 are applied to the PLL IC pin 2 The applied signals are divided at the prescaler and programmable counter The divided signal is phase compared with the reference frequency signal from the reference frequency oscillator X1 at the phase detector The phase difference is output from pin 8 as a pulse type signal The output signal is converted into the DC voltage lock voltage by passing through the loop filter R7 R9 R41 C4 C5 C43 The lock voltage is applied to the variable capacitors 053 of TX CH70 RX VCO and locked to keep the VCO frequency constant 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 VCO oscillating frequency PLL CIRCUITS 773 Loop filter PLL IC Buffer Charge Phase from the 076 1stmixer D32 L40 L41 pump 1 detector 1 Ref counter EN UN Programmable Prescaler RSIR 3 counter 1 7 1 2 Ej Programmable Prescaler q YGR amplifier 010 5 1 2 19 L 15 Ref Charge Phase from the X1 counter pump 2 detector 2 Ref counter Button 08 teL Q7 to 1st mixer 039 155 156 17 3 pee TX CH70 RX VCO 430 6 MHz 15 3 MHz Loop 4 to FM IF IC fi
44. 0 D SML 311YTT86 B 404 19 8 2030000380 31M15B5 FL 372 5040002310 D SML 311YTT86 T 131 13 1 2020002250 LT450EW 5040002310 D SML 311YTT86 T 139 4 34 9 5040002310 D SML 311YTT86 T 139 9 59 8 5040002660 D FY1101F TR LED T 116 23 6050012370 5 827 15 3 91 6 30 1 5040002660 D FY1101F 1 D T 104 23 6070000290 JTB450C24 5040002660 D FY1101F D T 92 23 6050012120 5 CR 804 21 250 MHz 112 9 4 7 5040002660 S LED FY1101F D T 80 23 6070000290 JTB450C24 5040002660 D FY1101F D T 68 23 SA E En n D 1 Rus 6200009560 S MLG1608B R10J T T 76 35 6 5040002660 D FY1101F D T 68746 6200010840 5 MLG1608B 56NJ T T 76 5 33 5 5040002660 D FY1101F D T 80746 6200003091 5 NLV32T 2R7J T 85 6 27 3 5040002660 D FY1101F D T 92 746 6200008190 S 0 25 1 9 8TL 80N T 82 3 26 8 5040002660 D FY1101F D T 104746 6200009560 5 MLG1608B R10J T T 70 4 35 2 5040005660 D T 116 746 6200009560 5 MLG1608B R10J T T 62 4 33 9 6200002601 5 NLV25T 047J T 49 4 14 2 6200009620 S MLG1608B 68NJ T T 72 5 56 9 6200009680 5 MLG1608B 47NJ T T 76 7 58 9 6910012350 S MMZ1608Y 102BT 58 57 7 6110001670 LA 253 6170000230 LW 25 6110001600 LA 243 MAIN UNIT 6110001600 LA 243 6110001600 LA 243 6200007360 S ELJND R47J 18 8 35 6150003821 LS 440 LF 6150003821 LS 440 LF 6200007360 S ELJND R47J 12 6 14 5 6150003821 LS 440 LF 6150003821 LS 440 LF 6130003000 S 617DB 1714 P3 6130003000 617DB 1714 P3 6200010440
45. 01 V 100 7030003640 473 V 47 7030003640 473 V 47 7030006060 ERJ12YJ100U 10 7030004120 5 ERJ3GEYJ 203 V 20 7030003560 ERJ3GEYJ 103 V 10 7030003590 183 V 18 7030003560 ERJ3GEYJ 103 V 10 7030004120 ERJ3GEYJ 203 V 20 7030003560 ERJSGEYJ 103 V 10 7030003590 ERJ3GEYJ 183 V 18 7030003560 103 V 10 7030003630 ERJ3GEYJ 393 V 39 7030003660 ERJSGEY J 683 V 68 7030003440 ERJSGEYJ 102 V 1 7030003560 ERJ3GEYJ 103 V 10 7030003520 472 V 4 7 7030003370 ERJ3GEYJ 271 V 270 k 7030003370 S ERJ3GEYJ 271 V 270 7030003320 S ERJ3GEYJ 101 V 100 7030003320 S ERJ3GEYJ 101 V 100 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 C2 UO D UJ UJ UJ UJ U U U U U UU U Q Q U UU UU UU UJ 7030003320 S 101 V 100 LOGIC BOARD MAIN UNIT ORDER HIV ORDER H V NO DESCRIPTION M LOCATION NO DESCRIPTION M LOCATION 4030017460 S ECJ0EB1E102K B 130 8 16 1 1790000620 S 77 TX T 58 3 32 3 4030017460 S ECJ0EB1E102K B 145 16 4 1790000691 5 HSM
46. 010005790 4010005500 4010005420 4010007630 4030017460 4030017460 4030017460 4030017730 4030017460 4030017460 4030017460 4010008080 4010008050 4030006860 4030017460 4030006860 4030017640 4030017580 4030017440 4030011600 4030016790 4030016930 4030017460 4030016930 4030017370 4030017600 4030017460 4030017370 4030017460 4030017460 4030017630 4030017560 4030017530 4030017360 4030017370 4030017600 4030016790 4030017730 4030017600 4030016790 4030017660 4030017580 4030016790 4030017460 4030017350 4030016790 4030017550 4030017460 4030017340 4030016970 4030017460 4030016790 4030017430 4030017620 4030017620 4510008540 4030016790 4030017450 4030017450 4030017460 4030016930 4030016930 4030017400 4030016930 4030017460 4030017460 4030011810 4030011600 4030016930 4030017460 4030017420 4030017400 4030017400 4030017430 4030017730 4030017430 4030017730 ECJOEC1H100C ECJOEC1H100C F931A106MAABMA ECJOEB1E102K ECJOEB1E471K ECJOEB1E102K EEE1CA220SR ECJOEB1C103K 931 106 HM60SJ 220 500V C1608 JB 1H 102K T C1608 JB 1H 102K T HM60SJ 050 500V ECJOEB1E102K HM60SJ YB 102K 500V HM60SJ CH 150J 500V HM60SJ CH 040C 500V HM60SJ CH 270J 500V ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K ECJOEB1E471K ECJOEB1E102K ECJOEB1E102K ECJOEB1E102K HM60SJ CH 300J 500V HM60SJ CH 180J 500V C1608 JB 1H 102K T ECJOEB1E102K C1608 JB 1H 102K T ECJOEC1H150J ECJOEC1H060C ECJOEC1H221J C1608 JB 1E
47. 030003280 7030003440 7030004050 7030003320 7030003200 7030003500 7030003200 7030003400 7030003500 7030003680 7030003380 7030003480 7030003420 7030003460 7030003400 7030003240 7030003540 7030003760 7030003340 7030003450 7030003490 7030003400 7030003400 7030003480 7030003530 7030003280 7030003400 7030003420 7030003660 7030003660 7030003380 7030003320 7030003300 7030003320 7030003400 7030003500 7030003400 7030003480 7030003360 4030016970 4030016790 4030016930 4550000510 4550007390 4030017460 4030017640 4610001590 4030017390 4030017460 4510008540 4030016790 4030017460 4030017730 4030016790 4030017490 4030017460 4030017460 4030017730 4030017380 4030017640 4030017650 4030017650 4030017460 4030017600 4030017660 4030017700 4550007590 4030017460 4030017550 4030017550 4030017460 4030017730 4030017730 4030017540 4030017730 4030017460 4030017640 4030017730 4030017640 4030017660 4030017460 4030017460 4030017460 4030017700 4030017420 4030017460 4030017460 ERJ3GEYJ 103 V 10 333 V 33 470 V 47 102 V 1 1RO V 1 101 V 100 100 10 332 V 3 3 k 100 10 471 V 470 332 V 3 3 104 V 100 331 V 330 222 2 2 k 681 V 680
48. 03200 7030003560 7030003760 7030003430 7030003620 7310005040 7030003580 7030003400 7510001511 7310005030 7030003550 7030003560 7030003440 7030003440 7030003460 7030003680 7030003620 7030003580 ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJSGEYJ ERJ3GEYJ ERJ3GEYJ ERJSGEYJ ERJ3GEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ ERJ3GEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ 561 V 560 681 V 680 333 V 33 k 223 22 k 333 V 33 471 V 470 683 V 68 271 V 270 180 V 18 271 V 270 561 V 560 822 V 8 2 822 V 8 2 101 V 100 391 V 390 181 V 180 681 V 680 683 V 68 471 V 470 223 V 22 k 270 560 8 2k 8 2 k ERJSGE JPW V ERJ3GE JPW V ERJ3GEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ ERJSGEYJ RHO3ADCJ ERJ3GEYJ ERJSGEYJ ERJ3GEYJ ERJ3GEYJ ERJSGEYJ ERJSGEYJ 100V 224V 222V 332 V 103 V 102 V 221 V 220 V 103 V ERJ12YJ680U 68 ERJ3GEYJ ERJ3GEYJ 823 V 82 104 V 100 ERJ3GE JPW V ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ 390 V 3 222 V 104 V 104 V 103 V ERJ3GE JPW V ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ ERJ3GEYJ RH03ADCJ ERJ3GEYJ
49. 075 BL RTK P 1520000651 5 25 12015 1510001090 5 KTA2015Y RTK P 1560000990 5 PMBFJ310 1560000990 5 PMBFJ310 1580000700 5 3SK292 TE85R 1530003890 5 KTC3880S Y RTK P 1530003950 S KTC4080 Y RTK P 1530003900 5 4075 1560000990 5 PMBFJ310 1530003950 S KTC4080 Y RTK P 1530003950 S KTC4080 Y RTK P 1530003950 S KTC4080 Y RTK P 91 7 43 1 88 3 41 6 73 1 35 1 73 8 27 5 78 27 9 71 3 31 64 7 33 3 76 1 56 60 7 50 9 56 48 8 56 1 40 2 52 1 44 1 5 3 14 6 65 8 7 3 65 8 4 1 101 8 4 1 60 4 42 3 35 6 28 7 28 8 30 3 62 47 8 46 33 7 46 30 5 16 31 2 92 2 51 4 102 34 7 70 8 16 9 82 6 9 7 80 3 15 3 84 19 55 1 14 53 3 31 5 58 20 9 101 3 38 1 104 3 39 4 89 9 9 5 87 2 13 77 6 11 6 84 3 16 7 81 4 19 6 87 9 19 9 55 1 15 9 7030003440 5 102 V 7030003440 ERJ3GEYJ 102 V 7030003440 5 102 V 7030003440 ERJ3GEYJ 102 V 7030003380 331 V 7030003480 222 107 3 32 8 7030003200 S ERJ3GEYJ 100 V 107 3 31 5 107 3 30 2 107 3 34 1 104 8 24 5 95 2 33 4 92 2 34 9 92 2 37 4 92 2 38 7 95 2 27 2 92 41 2 k k k k 30 k AAA AA AA AAA AAA AAA AAA 2 0 3 k k 0 7030003500 5 ERJSGEYJ 332 V 7030003560 ERJ3GEYJ 103 V 7030003380 S 331 V 7030003440
50. 104 wadi Q4KTC2875 MUTE 2 pi m IC9B KIC7W14FK 01 06 08122 1 GO PSKi0B0 a nw Sev ee Se oa CI V ICF3 1 P F i REVERSE IC10 gt BUFF im CONNECT z KIA7805AP N PROTECT 5 I COMMANDMIC 3 D42 DSA3A1 1229 IC6D sati kiwa eas isan bawa kari ICOAKIGTWIAFK m 1050 NJM2107F CD4066BPWR i vec Q8 2SA1576 NJM4558M FI 8 Pos BUFF gt py I IC9C KIC7W14FK ic6 PC357N6 01 MUTE 18 D2 KDS4148U I FILO 1 1 WZ Q37 KRA304 larme Ni sure Kd NJM4558M D COUPLER FOGO w MUTE K ICGB j j INCOM 2 CTAL 1 1 4 CD4066BPWR f 4066BPWR KRA304 LOGIC sue p A T MUTE AF CD4066BPWR 952804081 HAILO gt 4 T h 126 D3 KDS122 sme Vv 57 EL 7 15 I k D4 MA8062 vos FILRMH HAVOLO E MUTE MUTE 113 D ame gt O 1 1C27 28 1 5 M62429FP CD4094BPWR CD4094BPWR 5 5 IC4D IC14 LA4485 3 CD4066BPWR 3 CD4066BPWR z m EXPANDER EXPANDER 2 l AF UNIT lt ft 4 5 s 1 1
51. 105 V 1 37 4 31 1 7030003800 S 105 V 36 5 19 3 7030003800 S 105 V 35 2 19 3 7030003800 S 105 V 40 2 45 ooB 1530003900 5 4075 BL RTK P 1530003900 5 4075 BL RTK P 1590003670 5 KRA304 RTK P 1530003900 S KTC4075 BL RTK P 1590003560 S 6104 TE85L 1590003580 S KRC404 RTK P 1530003960 S KTC2875 B RTK P 1590003670 S KRA304 RTK P 1520000380 2581143 1590001190 6501 73 6 28 8 71 4 22 2 75 7 54 9 44 3 50 15 7 24 5 17 3 20 1 7 37 9 93 2 14 9 7030003800 ERJ3GEYJ 105 V 40 2 43 7 7030003800 ERJ3GEYJ 105 V 7030003800 105 7030003800 105 7030003860 ERJ3GE JPW V 7030003860 S ERJ3GE JPW V 7030003860 S ERJ3GE JPW V 7030003770 564 V 560 7030003580 153 15 39 2 31 4 34 8 31 1 33 9 19 3 68 9 23 3 13 9 38 5 12 1 37 7 8 33 6 6 34 4 6 42 1 9 2 40 1 65 3 40 5 67 3 40 6 67 8 37 1 78 9 44 4 81 1 43 5 87 3 43 4 92 50 5 79 2 42 2 91 1 17 3 95 8 23 2 90 3 14 3 9 8 37 8 18 1 24 5 17 2 22 96 5 13 7 94 1 14 6 48 5 44 6 49 4 43 3 46 5 43 8 44 4 43 6 44 4 42 3 42 5 37 3 45 7 37 4 48 6 36 1 48 5 37 4 51 3 37 4 43 5 24 36 4 33 3 40 37 3 43 2 37 3 45 6 37 9 48 1 37 5 6 12 8 6 16 4 5 8 17 1 5 5 13 5 5 14 8 5 4 23 A AWAAAA
52. 157 275 157 275 156 200 156 200 22 157 100 161 700 68 68 68 156 425 156 425 86 86 86 157 325 161 925 05 156 250 160 850 22 22 157 100 157 100 69 69 69 156 475 156 475 86 157 325 157 325 05 05A 156 250 156 250 23 23 157 150 161 750 703 703 703 156 525 156 525 87 87 87 157 375 161 975 06 06 06 156 300 156 300 23A 157 150 157 150 71 71 71 156 575 156 575 87 157 375 157 375 07 156 350 160 950 24 24 24 157 200 161 800 72 72 72 156 625 156 625 88 88 88 157 425 162 025 07 07 156 350 156 350 25 25 25 157 250 161 850 73 73 73 156 675 156 675 157 425 157 425 08 08 08 156 400 156 400 256 161 850 74 74 74 156 725 156 725 09 09 09 156 450 156 450 26 26 26 157 300 161 900 77 77 77 156 875 156 875 We channel Frequency MHz 10 10 10 156 500 156 500 27 27 27 157 350 161 950 78 156 925 161 525 Transmit Receive 11 11 11 156 550 156 550 28 28 28 157 400 162 000 78 78A 156 925 156 925 1 RX only 162 550 12 12 12 156 600 156 600 28 162 000 79 156 975 161 575 2 RX only 162 400 132 13 137 156 650 156 650 60 60 156 025 160 625 79 79 156 975 156 975 3 RX only 162 475 14 14 14 156 700 156 700 61 156 075 160 675 80 157 025 161 625 4 RX only 162 425 1572 157 157 156 750 156 750
53. 45 2 90 5 47 2 120 7 56 1 119 5 56 1 ORDER H V NO DESCRIPTION LOCATION 72 9 41 6 120 3 30 8 134 9 61 9 59 5 47 6 132 25 3 62 4 40 4 89 3 53 7 107 76 3 7030003680 104 V 100 7030003210 5 ERJ3GEYJ 120 V 12 7030003520 S 472 V 4 7 7030003680 5 ERJ3GEYJ 104 100 7030003640 5 473 47 7030003520 15 472 V 4 7 7030003280 5 ERJ3GEYJ 470 47 7030003430 5 821 820 7030003520 15 472 V 4 7 7030003440 S 102 V 1 7030003640 ERJ3GEYJ 473 V 47 7030003440 5 ERJ3GEYJ 102 V 1 7030003440 5 102 V 1 k 7030003860 ERJ3GE JPW V 7030003680 5 ERJ3GEYJ 104 V 100 7030003680 S 104 V 100 7030003680 104 V 100 7030003680 S ERJ3GEYJ 104 V 100 1110006380 S LM2904PWR 1140008650 S HN58X2464TI 1110005771 15 S 80942CNMC G9CT2G 1170000352 S PC357N6J000F 1180000421 15 TA78LO5F TE12R F 1130013100 5 KIC7W14FK RTK P 1130013200 S TC74LCXR164245 E F 1180002380 S S 817B33AMC CWW T2G 1520000651 5 25 12015 1530003900 5 4075 1530003900 5 4075 1530003960 5 KTC2875 B RTK P 1530002280 5 25 4081 T106 S 1590003580 5 KRC404 RTK P 1530002280 S 25 4081 106 5
54. 6 63 6 4 7 84 4 5 94 2 2 30 6 10 4 97 9 6 2 99 2 7 103 3 6 104 2 12 4 114 2 7 8 115 2 7 8 106 5 4 7 109 3 7 8 112 14 4 114 8 14 4 114 10 9 99 2 9 9 110 14 4 114 8 21 1 107 2 16 6 107 2 18 4 106 2 14 4 102 9 10 5 104 1 9 7 111 7 26 1 67 3 55 4 67 3 56 4 88 54 4 86 9 54 4 87 58 6 88 58 6 80 1 57 9 80 1 57 4030016930 4030017460 4510008540 4510008540 4030017460 4510008540 4030011600 4030016930 4030017440 4030017460 4030017460 4030016930 4030017590 4030017370 4030017590 4030017460 4030017530 4030017600 4030017350 4030017360 4030017460 4030017400 4030016970 4030017460 4030017620 4030017460 4030016970 4030017460 4030016790 4030017460 4030017460 4030017640 4030017460 4030017430 4510008540 4030016790 4030017460 4030016930 4030016930 4030017460 4030017460 4030011810 4030011810 4030017350 4030017600 4030017350 4030016790 4030016790 4030017380 4030017390 4030017360 4030017390 4030017620 4510008540 4030011810 4550000520 4550007390 4550000520 4030017340 4030017460 4030011600 4030017640 4030017620 4030017640 4030017620 4030017540 4030017460 4030017380 4030017460 4030017400 4030017650 4030017650 4030017460 4030017460 4030017630 4030017620 4030017460 4030017460 6510025520 6510025190 7120000470 7120000470 6910002161 6910002161 S ELE S ELE S CER S ELE 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
55. 65 264 47k 0 22 caos 07 Caos 12 001 308 105 CD4066BPWR 55 CD4066BPWR CD4056BPWR voi TE vor vo CONT om comi cow FE Olla CONT4 NJM4558M CONT4 CONT4 MICO FILOS MICAF SAFO to option Souse 50 02 104 5 102 03 5 02 104 Tio SCRAMBLER SCUSE e CONT2 MMUTEH om ef CONT2 O CONT3 CONT3 5 unit 7 vss vos vss vos vss vos R324 NTCGI R325 10k to CHASSIS unit Wt 5 i E 2 HV to MAIN unit J1 CP13 GND COM12V to CHASSIS an itwa CP14 GND 2581143 to CHASSIS unit W3 to MAIN unit J2 to CHASSIS unit W2 OPEN00V muurs 80549 y C450 SPMUTE mS 0 to LOGIC board J1 EVCK M62429FP WXDEC BPEV m vour vour2 HAMUTE Sa _ ___ 12 B 5 ra vec DSCENG DATA Explanatory notes ice VOLTAGE LINE MMUTES EXTRXD gt TX LINE AIMUTEH 54 Pek Pk CO AX LINE wesss PSTE PSTB unit Wi mamam COMMON LINE EXTSTB EXTSTB OPTIN HAILER PTT ON RX SP ON OPSTB OPSTB HAILER PTT OFF RX SP OFF 4 7V I en 88 88
56. 88ASRTR E T 49 9 49 8 4030017760 S ECJ0EB1H222K B 112 5 14 4 1790000691 5 HSM88ASRTR E T 42 4 42 5 4030017730 S ECJOEB1E471K B 110 5 14 4 1710001081 L308CCB 4030016790 S ECJOEB1C103K B 82 3 53 4 1710001081 L308CCB 4510008540 S EEE1CA100SR B 115 5 69 9 1790000620 5 77 18 7 32 4 4510008540 5 EEE1CA100SR B 110 7 72 1 1750001190 5 KDV214E T 148 22 4030016790 S ECJOEB1C103K 88 3 46 7 1750001190 5 KDV214E T 17 6 13 8 4030016930 ECJOEB1A104K B 109 2 75 4 1750001190 S KDV214E RTK P T 14 8 13 5 4030016930 ECJOEB1A104K 106 73 4 1750001190 KDV214E 17 6 12 5 1750001190 5 KDV214E T 19 6 11 3 1750001190 KDV214E T 28 2 11 3 6510025180 5 IMSA 9639S 40D TB 93 32 8 1750000431 5 HSB88WSTR E T 42 5 5 6 6510025170 5 IMSA 96319 27B TB 86 62 8 1790001330 5 MA8036 L TX T 100 8 8 4 6510021291 S S10B ZR SM4A TF LF SN 59 5 12 1750000431 S HSB88WSTR E T 42 5 21 5 6510019121 5 S8B PH SM4 TB LF SN 124 5 9 1790001330 5 MA8036 L TX T 102 44 1 6510018971 S B4B PH SM4 TB LF SN 61 62 3 1720000811 S HVC358BTRF E T 86 5 8 9 6510021601 S S2B PH SM4 TB LF SN 142 5 9 1720000811 5 HVC358BTRF E T 86 5 10 8 5030002390 HLM7784 010100 2030000350 21R15AB FL 368 5040002310 D SML 311YTT86 T 57 2 11 5 2030000480 21R15AB FL 399 5040002310 D SML 311YTT86 T 23 3 14 3 2020002250 LT450EW 504000231
57. 8930053870 2352 sheet A 8930053040 2352 SP net 8850001610 Spring washer M4 SUS 8810009260 Screw PH BT 2 x 6 NI 8810008900 Screw M3 x 6 NI 8810009240 Screw BiH M4 x 10 ZK 8930061010 2715 mic sheet Lk ci ch ck och cr ck CX MP8 PK MAIN UNIT DESCRIPTION MC1 1 7700002120 SP1 2510001080 Screw abbreviations SP1 M 17 4 _ Y MP18 C 21 C A MP20 C AX MP7 C 11 W1 Microphone KUC2123 030245 Speaker S36G04K 9 BT Self tapping PH Pan head BiH Binding head ZK Black SUS Stainless NI Nickel MP9 C MP15 C lt 12 MP13 14 2 7 Unit abbreviations 5515 PARTS MAIN UNIT 8 SEMICONDUCTOR INFORMATION TRANSISTORS AND FET s
58. 90 C1608 CH 1H 470J T 4030017490 C1608 JB 1 105K T 4030017790 ECJOEB1E682K 4030016790 ECJOEB1C103K 4030016790 ECJOEB1C103K 4030017460 ECJOEB1E102K 4030016790 ECJOEB1C103K 4030017400 ECJOEC1H220J 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017420 ECJOEC1H470J 4030017420 ECJOEC1H470J 4030017420 ECJOEC1H470J 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4030017730 ECJOEB1E471K 4030017730 ECJOEB1E471K 4030017460 ECJOEB1E102K 4030017680 ECJOEC1H820J 4030017680 ECJOEC1H820J 4030017460 ECJOEB1E102K 4030016790 ECJOEB1C103K 4030006900 C1608 JB 1H 103K T 4510008530 EEE1HA2R2SR 4030017490 C1608 JB 1A 105K T 4030017460 ECJOEB1E102K 4510004591 16 ME 470 HC 4510004591 16 ME 470 HC 4030016930 ECJOEB1A104K 4030017420 ECJOEC1H470J 4030017420 ECJOEC1H470J 4030017460 ECJOEB1E102K 4030017460 ECJOEB1E102K 4510004601 16 ME 1000 HC 4030011600 C1608 JB 1E 104K T 4030016930 ECJOEB1A104K 4030017420 ECJOEC1H470J 4030017460 ECJOEB1E102K 4510008500 EEE1CA101WP 4030016790 ECJOEB1C103K 4030011600 C1608 JB 1E 104K T 4030011600 C1608 JB 1E 104K T 4030016790 ECJOEB1C103K 4510008500 EEE1CA101WP 4030016790 ECJOEB1C103K 4030017420 ECJOEC1H470J 4510008530 EEE1HA2R2SR 4030011600 C1608 JB 1E 104K T 4030007090 C1608 CH 1H 470J T 4030007090 C1608 CH 1H 470J T 4510008530 EEE1HA2R2SR 4030011810 C1608 JB 1A 224K T 4030017460 ECJOEB1E102K 4510004591 16 ME 470 HC 4510008500 EEE1CA101WP 4510008530 EEE1HA2R2SR 4510008560 EEE1HAR47SR
59. AA 2 5555 4 6 20 1 1790000700 DSAS3A1 7030003620 15 333 V 33 7030000100 15 MCR10EZHJ 4 7 487 7030003620 15 333 V 33 7030003640 473 47 7030003760 474 470 7030003600 ERJSGEYJ 223 V 7030003580 ERJSGEYJ 153 V 7030003400 S ERJ3GEYJ 471 V 7030003760 S ERJSGEYJ 474 V 7030003720 5 ERJSGEYJ 7030003390 ERJSGEYJ 7030003490 ERJSGEYJ 7030003620 S ERJSGEYJ 7030003620 ERJ3GEYJ 7030003480 S ERJSGEYJ 7030003680 ERJSGEYJ 7030003680 ERJSGEYJ 7030003680 ERJ3GEYJ 7030003680 S ERJSGEYJ 7030003680 ERJSGEYJ 7030003680 ERJSGEYJ 7030003800 ERJ3GEYJ 7030003800 S ERJSGEYJ 7030003800 ERJSGEYJ 7030003800 ERJSGEYJ 7030003680 ERJSGEYJ 7030003680 ERJ3GEYJ 7030003800 S ERJ3GEYJ 7030003490 ERJ3GEYJ 7030003800 S ERJSGEYJ 7030003490 ERJSGEYJ 7030003680 S ERJ3GEYJ 7030003680 S ERJ3GEYJ 7030003680 S ERJSGEYJ 7030003470 5 ERJSGEYJ 7030003680 ERJ3GEYJ 7030003800 S ERJ3GEYJ 7030003420 S ERJ3GEYJ 7030003520 S ERJ3GEYJ 7030003800 S ERJ3GEYJ 7030003800 S ERJ3GEYJ 7030003800 S ERJ3GEYJ 7030003680 S ERJ3GEYJ 7030003800 S ERJ3GEYJ 7030003590 S ERJ3GEYJ 7030003620 S ERJ3GEYJ 7030003560 S ERJ3GEYJ 7030003560 S ERJ3GEYJ 7030003560 S ERJ3GEYJ 7030003440 S ERJ3GEYJ 7030003560 S ERJ3GEYJ
60. AAAAN AAAAA 7 MECHANICAL PARTS AND DISASSEMBLY CHASSIS PARTS 6510004880 8900015070 8900015080 8900015300 8210022890 8210022900 8930058780 8930069320 8810010610 8930069330 8930034300 8810010610 8510017570 8810010020 8930069280 8930069270 8810008660 8810008660 8510017850 8810008660 8930069740 8930069950 8930069750 8930069310 8810010620 8820001210 8930052290 8930055040 FRONT PARTS 0800005503 0800009000 8210022850 8210022860 8930051970 8810010020 8930069260 8930052280 8610011370 8610011640 8610012960 8610012980 MAIN UNIT 6510025520 6910002161 6910002161 8510017560 8510014890 8510017560 8510014890 8930053480 Refer to SECTION 9 BOARD LAYOUTS DESCRIPTION Connector MR DS E 01 Cable OPC 1546 Cable OPC 1547 Cable OPC 1616 2914 rear panel assembly inc MP2 2914 rear panel A assembly inc MP2 2577 sheet 2914 rear seal Screw x 8 SUS 5 2914 chassis 1542 ANT seal Screw PH BO M3 x 8 SUS S 2914 module cover Screw PH BT M2 6 x 8 NI ZU 2914 S bush plate 2914 B bush plate Screw PH BT 8 NI ZU Screw PH BT 8 NI ZU 2914 earth plate Screw PH BT M3 x 8 NI ZU 2914 S IC clip Thermally sheet BE TC 80CG AV 2914 B IC clip 2914 front seal Screw BO x 12 SUS S 2438 screw O ring AD 2438 cap Black Gray USA 02 only DESCRIPTION Microphone HM 126B 3 Microphone HM 126G
61. C KTC2875 IC9 LA4425A DECODER E BPF q MAI N U N IT BPFV AF mm mue WXDEC q MUTE gt _ m TX SQL BOARD a FI2 FL 399 D32 HSB88WS Q21 3SK292 15 2211 1C12B LM2904PWR IC12A LM2904PWR ANDIE p 4 COMMON 55 DSD7Q DSC DET AMP MIX 1 i q DECODER Kim 5 ry Q24 KTC3880S 022 23 026 031 PMBFJ310 KDV214Ex6 NOISE NOISE 2ND LO L Normal channels 11 DET BUFF N VOLTAGE LINE D 1 1226 031 32 vb 1 CD4066BPWR KTC4075 2 1136 022 77 D gt T ICAB LM2904PWR X4 JTB450C24 151145044 2 D2 07 04 1 450kHz CERAMIC A Crool K 5 08 BPFV A K 21 25 2 8 P BUFF cs I 8 2 _ Ta 5 CAC DSC channel 70 a IC10 IC2B LM2904PWR 372 D39 HSB88WS 4 0101 00 TC74LCXR164245 1 a MM kim pr 1 DSCENC 1 HL DET AMP MIX MODULE K I S A too 4 2 Q63 KTC3880S 31 05MHz 058 59 Sw KE LPF X1 CR 790A 5 RI 9 8304 2 ES NOISE NOISE 2ND LO 4 R10V Q76 KTC3080 1 11 5 817 H Z i DET Bur
62. HJ JPW en 7030003680 15 104 V 7030003680 15 104 V 7030003560 15 103 V 7030003560 15 103 V 7030003560 15 103 V 7030003560 15 ERJ3GEYJ 103 V 7030003440 15 102 V 7030003460 15 152 V 7030003760 15 474 V 7030003760 15 474 V 7030003760 15 474 V 100 7030003280 5 470 V 3 1 1 Ok k k k 0k k k k k k 7030003680 S 104 V 7030003630 S ERJ3GEYJ 393 V 7030003580 S 153 V 7030003470 S 182 V 7030005341 S ERA3YED 332V 7030005321 S ERA3YED 103V 7030005321 S ERA3YED 103V 7030000320 S MCR10EZHJ 330 7030000320 S MCR10EZHJ 330 7030003440 S 102 V k 8k k 5 70 70 70 7 00 9k 5k k k 31 31 0 0 3 3 1k 4030016790 ECJOEB1C103K 4030016790 15 ECJOEB1C103K 4030018900 15 474 4030016930 ECJOEB1A104K 4030016970 ECJOEB1C223K 4030016970 ECJOEB1C223K 4510008540 15 EEE1CA100SR 4030017760 15 ECJOEB1H222K 4030018820 15 ECJOEB1H561K 4510008530 EEE1HA2R2SR 4510008530 S EEE1HA2R2SR 4510008530 S EEE1HA2R2SR 4030011810 15 C1608 1 224 4510008530 15 EEE1HA2R2SR 4030016790
63. LT450EW F gt wam RXLINE 1 gn memes COMMONLINE 11 3 Inc 1 1 32 547 0003 81 06 6793 5302 81 06 6793 0013 URL http www icom co jp world 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 9 icomamerica com Customer Service Phone 1 425 454 7619 Icom Canada Glenwood Centre 8150 6165 Highway 17 Delta B C VAK 5B8 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 Unit 1 103 Garden Road Clayton VIC 3168 Australia Phone 61 03 9549 7500 Fax 61 03 9549 7505 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 icom co nz Fax 64 09 274 4708 Beijing Ltd Room C01 10th Floor Long Silver Mansion No 88 Yong Ding Road Haidian District Beijing 100039 China Phone 86 010 5889 4250 Fax 86 010 5889 4250 URL http www bjicom com E mail bjicom bjicom com Icom Europe GmbH Communication Equipment Himmelgeister Str 100 D 40225 Dtisseldo
64. M TX 65 1 57 6 1750001180 15 KDS122 RTK P 129 2 35 1 1790001810 15 AVR M1005C080MTABB 126 27 6050012041 15 CR 790A 9 8304 MHz 116 5 64 3 7030003560 S ERJ3GEYJ 103 V 10 7030003640 ERJSGEYJ 473 V 47 7030003680 104 V 100 7030003800 ERJ3GEYJ 105 V 1 u 101 39 3 7030003500 S RES ERJ3GEYJ 332 V 3 3 10 7030003540 5 5 682 V 6 8 H 139 3 48 7 72 8 44 3 72 8 38 9 77 7 40 4 68 3 44 68 3 41 2 119 8 36 9 120 3 35 6 128 4 18 8 129 2 17 143 5 17 1 100 1 59 4 100 8 61 4 127 7 17 102 8 29 137 1 58 2 137 1 59 4 134 4 58 2 115 7 59 9 139 3 51 3 139 3 52 6 135 3 75 2 98 8 70 6 100 70 6 101 2 70 6 102 4 70 6 103 6 70 6 104 8 70 6 106 70 6 107 2 70 6 97 6 70 6 127 4 70 8 130 6 67 5 131 9 70 3 131 9 67 5 49 4 15 9 134 2 17 5 90 7 26 9 54 7 23 74 74 3 7030003560 ERJSGEYJ 103 V 7030003560 ERJ3GEYJ 103 V 10 7030003560 ERJ3GEYJ 103 V 10 7030003560 ERJ3GEYJ 103 V 10 7030003560 ERJSGEYJ 103 V 10 7030003560 ERJ3GEYJ 103 V 10 7030003650 ERJ3GEYJ 563 V 56 7030008051 184 180 7030003320 ERJ3GEYJ 101 V 100 7030003680 104 V 100 7030003570 123 V 12 7030003640 473 V 47 7030003640 473 V 47 7030003320 ERJ3GEYJ 1
65. N UNIT Q54 Q55 NMTXD NMRXD EDATA Data ports for NMEA data Data 1 0 port for EEPROM LOGIC BOARD IC3 pin 5 ECK Outputs clock signal to the EEPROM LOGIC BOARD 6 EXTOE Outputs OE signal to the expanders AF UNIT 1C27 28 pin 15 HANG Input to port for hang up detect signal from HM 126B G PTT Input port for the PTT switch of HM 126B G Low When the switch is pushed EVDATA Outputs serial data to the electric volume IC AF UNIT 4 EVCK Outputs clock signal to the electric volume IC AF UNIT IC13 pin 5 DTRS Input port for the DISTRESS key LOGIC UNIT S10 Low When the key is pushed MENU Input port for the MENU key LOGIC UNIT S9 Low When the key is pushed CLR Input port for the CLR key LOGIC UNIT S8 Low When the key is pushed HAIL Input port for the HAIL key LOGIC UNIT S7 Low When the key is pushed LO DX Input port for the LO DX key LOGIC UNIT S6 Low When the key is pushed Input port for the CH16 key LOGIC UNIT S5 Low When the key is pushed Input port for the ENTER key Low When the key is pushed Input port for the CH WX key LOGIC UNIT S4 Low When the key is pushed Input port for the SCAN key LOGIC UNIT S3 Low When the key is pushed Outputs transmit power select signal to the TX
66. O SERVICE MANUAL VHF MARINE TRANSCEIVER IC M504 5 14225 2 1 4 2006 Icom Inc INTRODUCTION This service manual describes the latest service information for the IC M504 MARINE TRANSCEIVER at the time of publication VERSION SYMBOL USA U S A USA 1 To upgrade quality all electrical or mechanical parts and internal circuits are subject to change without notice or obligation PRECAUTIONS NEVER connect the transceiver to an AC outlet or to a DC power supply that uses more than 16 V Such a connection could cause a fire or electric hazard DO NOT expose the transceiver to rain snow or any liquids DO NOT reverse the polarities of the power supply when connecting the transceiver DO NOT apply an RF signal of more than 20 dBm 100 mW to the antenna connector This could damage the trans ceiver s front end EU TAG DUAL c scan ORDERING PARTS Be sure to include the following four points when ordering replacement parts 1 10 digit Icom parts number 2 Component name and informations 3 Equipment model name and unit name 4 Quantity required SAMPLE ORDER gt 1130007610 510 uPD3140GS 504 8810010610 Screw M3x8 SUS 504 Main unit 5 pieces Chassis 10 pieces Addresses are provided on the inside back cover for your convenience REPAIR NOTES 1 Make sure the problem
67. OEC1H220J ECJOEC1H270J ECJOEC1H270J ECJOEB1E102K ECJOEB1E102K ECJOEC1H120J ECJOEC1H100C ECJOEB1E102K ECJOEB1E102K IMSA 6065B 04Z097 PT1 IMSA 9639S 20Y905 ERDS2TO ERDS2TO CASE BM7H LF CASE BM7H LF 34 5 33 2 107 7 41 8 40 2 29 4 64 9 18 3 37 3 35 3 41 4 37 4 20 2 27 7 13 4 31 4 12 5 27 6 19 1 27 9 16 2 33 9 14 9 33 5 10 6 26 16 6 26 21 5 26 1 23 2 26 25 26 26 8 26 1 29 8 26 1 49 7 35 7 45 9 36 2 48 8 35 7 47 9 36 2 46 9 36 2 78 3 45 9 86 9 49 7 91 7 49 93 48 2 96 4 48 3 55 6 24 5 55 8 20 5 57 1 19 1 90 7 46 6 97 52 9 105 8 46 1 102 7 48 1 101 8 47 2 104 2 55 2 106 53 3 99 9 45 5 97 8 47 5 95 4 50 8 96 7 50 2 34 2 26 9 31 5 26 7 44 9 21 5 46 5 27 9 100 4 36 3 99 4 32 1 104 37 1 102 3 40 3 106 1 40 3 103 4 42 68 1 13 4 71 3 13 104 6 20 2 88 9 16 93 2 10 7 84 8 9 4 80 9 12 1 81 4 13 2 80 4 9 80 11 2 79 5 9 80 10 3 79 6 12 8 86 1 17 6 82 4 17 4 78 1 18 1 86 19 4 87 18 2 88 8 18 4 92 4 19 8 58 6 17 78 5 16 52 7 14 4 53 8 12 1 109 3 40 7 5 5 5 5 5 5 5 5 55 5 5 5 5 55 5 5 5 5 55 5 5 5 5 55 55 5 5 55 5 5 5 5 55 5 5 5 5 5 113 37 M Mounted side Mounted on the Top side Mounted the Bottom side S Surface mount AF UNIT AF UNIT ORDER ORDER HIV NO DESCRIPTION LOCATION NO DESCRIPTION LOCATION 1130011770 CD4066BPWR 35 5 25 5 7030003800 S 105 V 36 1 31 1 1130011770 CD4066BP
68. Pa BRE Rea Se SEND DSDM DSDM 9 e LE RD 85 zb 555 55955 PWRON TET 99 fip 22948 FOG GAES RS 4 a RESETB RESETB 5 DSCENC 9 5 CS1B 5 ax PWR 9 5 z EXTRXD EXTRXD E 9 UNLK UNLK aon 2581201 ENT PDATA PDATA 9 MIN 53V CHWY S gt 41 17 P73 CTS2JRTSPTA1INV 54 PSTB SCAN 3 40 16 P74 TAZOUTW 55 R79 PCK PK O 9 E T HAO i P37 A15 P75 TA2INW 155 FOG 100k EXTSTB EXISTB 5 100 x 20k 55 6 14 P76 TASOUT 7 9 4 4 4 DIM3 56 P35 A13 7 59 x Nx 5 OPSTB 5 DS13 0512 0511 7 34 12 P80 TA4OUT U 82 58 98 OPTIN OPTIN FY1101F FY1101F FY1101F Leov P33 A11 H2 kani Ev ro berg GU P32 A10 18 EWA Ni Ni 4 gs DIM2 15 ao P31 A9 1 VCC2 PBA INT2 DS16 DS15 0514 51 Pas NMI Ho FY1101F FY1101F FY1101F R58 52 ar 62 14 pos VSS 3 Y DIM1 P27 AN27 A7 XIN R76 64 12 GND Xi 188V H x H P26 AN26 A6 vss R46 100 65 11 XOUT CR 790A amp A 4 S18 ce 25 25 5 XOUT RESET 100 vec 0519 0518 0517 KTC4075 Reo RESETS 67 P24 AN24 A4 RESET fo 1 FY1101F gi jek DIMO RS 23 23 P86 XCOUT rs
69. T m 8 2 R7 x 25 E 58 22 22 2 P87 XCIN 88 88 T O 85 4 ES 70 4 P21 AN21 A1 cNvss Fe cub J 1 I DS22 0521 0520 MPWR 1 2 2 BYTE 5 OPSTB 1 1 2 FY1101F 4 DIALB 72 917 015 5 PS0 TB0IN f 4 ex LM2904PWR DIALA 73 P16 D14 NTS PSVTBIIN CNVSS 98 1 ass yi da E DIM3 75 1 OPSTB 6 1 nd P13 D11 P94 DA1 mE T 3 6 a PSTB ee E x 7 gs ET 8 E 5 8S 5 5 pis 9 cme CP20 m CP18 CLR 4 J 5 9 1 51 Lid E E 4 KEY 25 Ice r 55 56 10 ss z 50V TAT8LOSF 138V z 5 Ses CP14 9 58838428548399 9 ERE vs 2 4 4 22225 2 4 as 88 oPt9 17 8885555525555555555 5 5555 u 57 82 B sgl s he Bs KEY KEY 5e 58 5 5 5 nu r 8 3 85 2 8 1 05 57 R82 ib sia KDS122 KDS12 T KEY KEY 1k 125 noe 053 052 5 7 CLORXD SML 311YT SML 311YT ES ge 68 1 2155 Q4 599 E g Ex Krcs i eel Pal el s al el el Pal zs ds 99999989 Lv e 9 LT 55 R89 DIALA DIALA MODEL 47k CP24 DIALB DIALB CLOTXD LENT 85 55 5 851 gsi 8 R84 o DIAL BOARD 1 xi
70. WR 78 5 24 7030003440 S 102 V 61 1 19 2 1130011770 CD4066BPWR 59 47 7030003770 S 564 V 67 3 26 4 1130011770 CD4066BPWR 70 54 4 7030003680 S 104 V 66 6 22 3 1110000960 NJM4558M TE1 63 5 41 6 7030003520 S ERJ3GEYJ 472 V 63 22 1 1110000960 NJM4558M TE1 63 5 28 7030003610 S 273 V 67 3 29 5 1110003091 LA4425A E 7030003680 S ERJ3GEYJ 104 V 100 k 71 1 31 1180002780 KIA7805API U P 7030003590 S 183 V 18 k 69 5 29 5 1 k M 0 k 00 7k 1 1 56 1 4 27K 1110006380 LM2904PWR 48 1 40 7030003670 15 823 V 82 k 67 3 32 6 1110004490 M62429FP 700C 88 5 44 7030003670 15 823 V 82 65 7 34 1 1110006141 LA4485 E 7030003670 15 823 V 82 62 3 34 1 1110003650 NJM2211M TE1 43 30 7030003680 15 104 V 100 59 7 44 4 1130013110 KIC7W53FK RTK P 40 40 4 7030003610 273 27 67 3 40 6 1130011760 CD4094BPWR 46 12 5 7030003800 S ERJ3GEYJ 105 V 1 M 63 9 48 2 1130011760 CD4094BPWR 46 20 5 7030003470 S 182 V 1 8 k 65 7 47 6 1110002400 NJM2107F TE1 64 1 37 7 7030003560 S 103 V 10 k 33 3 28 4 7510001671 S NTCG16 4BH 103JT 31 4 28 4 7030003560 S 103 V 10 k 30 1 31 7 7030003580 S 153 V 15 k 29 5 28 4 7030003800 S
71. er 5 1215 NJM2211M APC circuit ion KTA2015 Q15 FMW1 Microphone amplifier TX CH70 RX VCO 7 NJM4558M RX VCO PLL IC IC1 uPD3140GS AF power amplifier for hailer 14 LA4485 E Located under side of the point FM IF IC Normal RX 2 TA31136FNG FM IF IC CH70 RX 14 TA31136FNG SECTION 3 DISASSEMBLY INSTRUCTIONS Opening the transceiver case CD Unscrew 6 screws 2 Disconnect 2 cables from J1 and J5 3 Remove the front unit 4 Unscrew 6 screws 8 and remove the rear panel Front unit Rear panel Removing the LOGIC board D Disconnect 3 connectors from J6 J4 and J3 2 Unsolder 2 points 3 Unscrew 7 screws B and remove the LOGIC board from the front panel Removing the MAIN unit Disconnect the flat cable from J2 2 Unsolder 14 points 8 3 Unscrew 6 screws and remove the MAIN unit from the chassis EN unit Removing the AF unit CD Disconnect 2 flat cables from J1 and J2 Disconnect 6 connectors from J5 J6 J8 J9 J11 and J12 3 Remove 2 clips 8 4 Unsolder 4 points 5 Unscrew 4 screws D and remove the AF unit from the chassis SECTION 4 CIRCUIT DESCRIPTION 4 1 RECEIVER CIRCUITS 4 1
72. is internal before disassembling the transceiver 2 DO NOT open transceiver until the transceiver is disconnected from its power source 3 DO NOT force any of the variable components Turn them slowly and smoothly 4 DO NOT short any circuits or electronic parts An insulated turning tool MUST be used for all adjustments 5 DO NOT keep power ON for a long time when the transceiver is defective 6 DO NOT transmit power into a signal generator or a sweep generator 7 ALWAYS connect a 40 dB to 50 dB attenuator between the transceiver and a deviation meter or spectrum analyzer when using such test equipment 8 READ the instructions of test equipment thoroughly before connecting equipment to the transceiver Icom Icom Inc and logo registered trademarks of Incorporated Japan the United States United Kingdom Germany France Spain Russia and or other countries SECTION SECTION SECTION SECTION SECTION SECTION SECTION SECTION SECTION SECTION SECTION TABLE OF CONTENTS 1 SPECIFICATIONS 2 INSIDE VIEWS 3 DISASSEMBLY INSTRUCTIONS 4 CIRCUIT DESCRIPITON 4 1 RECEIVER CIRCUITS 5225 yu et oret e dta paa hiya gua estet watt 4 1 4 2 TRANSMITTER 8 5 eine ek 4 2 4 3 PEL CIRQUITS ai 4 4 4 4 DSC CIRGUITS gah Se
73. lter 14 pin2 964 04 05 03 4 4 DSC CRICUITS The DSC circuits monitors the DSC channel CH70 156 525 MHz during stand by 4 4 1 RF CIRCUITS MAIN UNIT The divided signals DSC channel are from the divider L35 C151 C152 are applied to the RF amplifier Q61 The amplified received signals are passed through the BPF L62 L63 C511 C512 514 516 to extract 156 525 MHz CH70 signal The filtered signals are then applied to the double balanced 1st mixer D39 L55 L56 and converted into the 31 05 MHz 1st IF signal by being mixed with the 1st local oscillator LO signals from the VCO Q4 Q5 D1 D3 4 4 2 1st IF CIRUIT MAIN UNIT The converted 1st IF signal is applied to the 1st IF amplifier Q58 Q59 and the amplified 1st IF signal is passed through a pair of crystal filters FI4A B The filtered 1st IF signal is amplified by another IF amplifier Q63 and is then applied to the FM IF IC 14 16 4 4 3 2nd IF AND DEMODULATOR CIRCUITS MAIN UNIT The 1st IF signal from the 1st IF circuits is applied to the 450 kHz 2nd IF mixer in the FM IF IC IC 14 pin 16 and converted into the 2nd IF signal by being mixed with the 30 6 MHz 2nd LO signal from the PLL IC IC1 pin 17 via the boubler Q64 2nd IF AND DEMODULATOR CIRCUITS CH70 FM IF IC 1214 Quadrature detector to the AF circuits to the DSC filters AF UNIT 12 1
74. mplifier IC2 pin 5 The amplified 2nd IF signal is then FM demodulated at the quadrature detector IC2 pins 10 11 X2 and output from pin 9 The demodulated AF signals are applied to the AF circuits 4 1 5 AF AMPLIFIER CIRCUITS AF UNIT The demodulated AF signals from the FM IF IC are amplified and filtered in the AF circuits The AF signals from the FM IF IC MAIN UNIT IC2 pin 9 are passed through the RX selector 1226 pins 1 7 AF mute switch IC3 pins 10 11 BPF Q31 Q32 and another AF mute switch IC4 pins 8 9 in sequence The AF signals from the AF mute switch IC4 pins 8 9 are then applied to the volume control pot VR UNIT R1 to be ad justed its signal level audio output level The level adjusted AF signals are applied to the AF power amplifier IC9 pin1 via the AF mute switch Q65 The AF signals are obtained 4 5 W typ of AF output power at the AF power amplifier IC9 and output from pin 4 then applied to the internal speaker FRONT UNIT SP1 HM 126B G or connected external speaker t X3 21 25 MHz FM IF IC IC2 1st IF signal from the IF amplifier 024 SQL signal to the CPU pin 91 4 1 6 SQUELCH CIRCUITS MAIN UNIT Noise squelch circuit mutes AF output signals when no RF sig nals are received By detecting noise components 30 kHz and higher signals in the demodulated AF signals the squelch circuit switches the AF mute
75. nced 1st mixer D32 L40 L41 via a two staged tunable D30 D31 138 L39 173 178 C196 4 1 3 1st IF CIRCUITS MAIN UNIT The received signals are converted into the 1st IF signal and filtered and amplified in the 1st IF circuits The amplified received signals from the RF circuits are applied to the 1st mixer D32 L40 L41 and converted into the 21 7 MHz 1st IF signal by being mixed with the 1st local oscillator LO signals from the VCO Q72 D51 D52 2nd IF AND DEMODULATOR CIRCUITS d Quadrature detector Demodulated signals to the AF circuits The converted 1st IF signal is amplified by the 1st IF amplifier 022 023 and passed through two 1st IF filters 1 F12 to filter out adjacent signals The filtered 1st IF signal is amplified by the 1st IF amplifier Q24 then applied to the FM IF IC IC2 pin 16 4 1 4 2nd IF AND DEMODULATOR CIRCUITS MAIN UNIT The ist IF signal is converted into the 2nd IF signal and demodulated in the FM IF IC The 1st IF signal from the 1st IF circuits is applied to the 450 kHz 2nd IF mixer in the FM IF IC 122 pin 16 and converted into the 2nd IF signal by being mixed with the 21 25 MHz 2nd LO signal from the reference oscillator IC2 pin 1 X3 The converted 2nd IF signal is output from pin 3 and passed through the 2nd IF filter to suppress sideband noise The filtered 2nd IF signal is applied to the limiter a
76. nd IF 450 kHz CH70 RX 13 dBy typical at 12 dB SINAD 10 dBu 80 dB Normal RX 75 dB CH70 RX 80 dB Normal RX 75 dB CH70 RX 80 dB Normal RX 75 dB CH70 RX 40 dB 1 dB to 3 dB of 6 dB oct from 300 Hz to 3000 Hz 4 5 W typical at 10 distortion with a 4 O load 4 Q Specifications are measured in accordance with TIA EIA 603 All stated specifications are subject to change without notice or obligation e list Channel number Frequency MHz Channel number Frequency MHz Channel number Frequency MHz Channel number Frequency MHz USA INT CAN Transmit Receive USA INT CAN Transmit Receive USA INT CAN Transmit Receive USA INT CAN Transmit Receive 01 01 156 050 160 650 19A 19 156 950 156 950 64 64A 156 225 156 225 83A 157 175 157 175 156 050 156 050 20 20 20 157 000 161 600 65 156 275 160 875 836 only 161 775 02 02 156 100 160 700 20 157 000 157 000 65A 65 65 156 275 156 275 84 84 84 157 225 161 825 03 03 156 150 160 750 21 21 157 050 161 650 66 156 325 160 925 84 157 225 157 225 156 150 156 150 21 21A 157 050 157 050 66A 66A 66 156 325 156 325 85 85 85 157 275 161 875 04 156 200 160 800 21b Rx only 161 650 672 67 67 156 375 156 375 85
77. ow Transmitting Connect a digital multi meter or oscilloscope to the check point CP2 Connect a digital multi meter or oscilloscope to the check point CP 1 MAIN Verify LOCK VOLTAGE DSC receive Receiving Connect a digital multi meter or oscilloscope to the check point CP1 REFERENCE FREQUENCY Channel CH16 156 800 MHz Output power Low Connect a power meter to the ant enna connector Transmitting Loosely couple a fre quency counter to the antenna connector ADJUST AND MEASURE POINTS LOCATION MAIN UNIT 156 800 MHz 500 Hz CP1 C12 CP2 Lock voltage verify transmit DSC receive Reference frequency adjustment Lock voltage verify regular receive 5 3 TRANSMIT ADJUSTMENT MEASUREMENT ADJUSTMENT ADJUSTMENT ADJUSTMENT CONDITION POINT LOCATION UNIT ADJUST TRANSMIT Channel CH16 156 800 MHz Connect an RF MAIN R112 OUTPUT POWER e Output power High power meter to the Transmitting antenna connector DEVIATION Channel CH16 156 800 MHz Connect 4 25 4 35 kHz e Output power Low deviation meter Connect an audio generator to the MIC to the antenna line see the page 5 1 and set as connector through Frequency 1 kHz an attenuator Level 30 mV Set the FM deviation meter as HPF OFF LPF 20 kHz De emphasis OFF Detector 2 Transmitting
78. ppm or better AC millivoltmeter Frequency range 0 1 300 MHz Output level 0 1 pV to 32 mV 7127 to 17 dBm Measuring range 10 mV to 10 V FM deviation meter Frequency range Measuring range 30 300 MHz 0 to 10 kHz External speaker Input impedance 40 Capacity More than 5 W Audio generator CONNECTION Frequency range Output level Audio generator millivoltmeter 300 3000 Hz 1 500 Attenuator To DC power connector Power attenuation 40 or 50 dB Capacity More than 30 W To external speaker lead DC power supply 13 8 7 millivoltmeter 5 5 FM deviation meter 5 u Attenuator 40 50 e N RF power meter 1 30W Frequency CAUTION DO NOT transmit while SSG is connected to the antenna connector counter Standard signal generator 0 1 uV to 32 mV 7127 to 17 dBm SP a ma SP Shield Distortion meter 1 Speaker 4 Q 5 2 FREQUENCY ADJUSTMENT ADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT LOCATION ADJUSTMENT POINT UNIT ADJUST LOCK VOLTAGE Regular receive Channel Receiving CH16 156 800 MHz Channel CH16 156 800 MHz Output power L
79. r 07 08 910 103 P E M D12 D13 1 1 A D 77 25 4226 5 1 HSM88ASRx2 1 33 OPTION BETON Ly REG ZW 11 MUTE MUTE L IC14 TA31136FN az 7 ae Pan pi ROUT p TXOET ESC Q7 KTC4080 AME DET IC4B Q64 KTC4080 1 SCRMBLER ceo x2 I UNIT SCUSE CD4066BPWR N A Q72 PMBFJ310 BOARD Y INCOM VOLO D E D AF gt D51 D52 HVC358Bx2 Q71 KTC4075 T5V 5 103 MICO p AF 1 827 LOOP RVCO10V STRE 1 i MUTE 15 3 2 D BUFF RIPPLE 01 2581201 1C1 M30622MEP I ES MMUTEM RE Q2 Q3 KTC4075x2 I a 1038 Q74 KTC4080 i CPU EEPROM 1 CD4066BPWR MMUTES Q75 KTC4080 DM ie 4 PWR 1 gt d BUFF eme to INCOM j 082 10 1 lt TEND Mur 314005 10 d SML311Yx9 IC4 H gt A Q3 KTC4080 RIPPLE DS11 22 5 80942 5 lt FIL lt 1 FY1101Fx12 CD4066BPWR BUFF R10V E d d TXMUTE TMUTE lt _ RESET Kj 1 REG CTRL ot EN Q54 KTC4075 Q16 KRC404 ron Q4 Q5 2SC4226x2 Q55 2SB1201 LA g D3 HVC350B Q6 KTC4080 I 5 LOOP He T m 1 9 IC8B IC8A PJ CH7o Rx ey Kd I NJM4558M NJM4558M I Q61 TPC6
80. r M5 SUS Spring washer M5 SUS 2040 knob bolt 1 2040 knob bolt C 1 2289 mic hanger Screw PH A x 16 SUS Cable tie 80 Black Gray Black Gray A BO BT Self tapping PH Pan head ZK Black NI ZU Nickel Zinc SUS Stainless 1 1 NN N N A a MP42 5 MP42 MP34 5 _ MP42 12 145 5 2 2 DIAL BOARD 10 P Unit abbreviations C CHASSIS PARTS M MAIN UNIT AF UNIT FRONT PARTS LOGIC BOARD V VR BOARD S SQL BOARD D DIAL BOARD at 91 4 31 ui 165 6 i 314 77 3 V Unit mm inch MP23 F HM 126B G CHASSIS PARTS DESCRIPTION 8900014820 Cable OPC 948 8900013590 Cable OPC 949 8210022750 2352 front panel 1 8210021410 2352 front panel A 1 8210020380 2352 rear panel 8210020120 2352 rear panel A 8930052160 2352 key 8930052150 2352 PTT rubber 8930052140 2352 PTT holder 8930052690 2352 MIC rubber 8930052120 2352 rubber 8930052110 2352 main seal 8610010870 2352 hanger knob 8310048760 2352 R plate 8310048780 2352 mic plate 8820001150 2352 screw 8850001850 ICOM washer Y 8930052340 O ring 8930052350 O ring AF
81. rf Germany Phone 49 0211 346047 Fax 49 0211 333639 URL http www icomeurope com E mail info icomeurope com Icom Spain S L Ctra Rubi 88 08190 Sant Cugat del Valles Barcelona SPAIN Phone 34 93 590 26 70 Fax 34 93 589 04 46 URL http 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 44 01227 741742 URL http www icomuk co uk E mail info icomuk co uk Icom France 5 5 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 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 www 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 9 icompolska com pl Count us Icom Inc 5 14225 2 1 4 1 1 32 Hirano ku Osaka 547 0003 Japan 2006 Inc
82. s araca 4 5 4 5 POWER SUPPLY CIRCUITS soer RIS RR e Dee er biked 4 5 4 6 PORT ALLOCATIONS ERE ag a eae EM SOAS EAR Geek 4 5 5 ADJUSTMENT PROCEDURES 5 1 PREPARATION pasa Eg CR ost suya ERR CU 5 1 5 2 FREQUENCY ADJUSTMENT gt RI we oie dace Kale radice 5 2 5 3 TRANSMIT ADJUSTMENT regen yawaq ama IER RUE T dde 5 8 5 4 RECEIVE ADJUSTMENT ic iens RA eem end ak dee 5 4 6 PARTS LIST 7 MECHANICAL PARTS AND DISASSEMBLY 8 SEMICONDUCTOR INFORMATION 9 BOARD LAYOUTS 9 1 AE UNIT assa tbe pter 9 1 9 2 MAIN UNIT ccr 9 1 9 3 FIM 126B 9 3 9 4 VR BOARD 9 3 9 5 SOLBOARD ZU eh hd Barts 9 3 9 6 DIAL BOARD xe 9 3 9 7 LOGIC BOARD qn ta dude 9 3 10 BLOCK DIAGRAM 11 VOLTAGE DIAGRAM 11 1 FRONT UNIT LOGIC DIALISQUVR BOARD S i eter rers 11 1 u un int a ss dean 11 2 11 3 MAIN UNIT SECTION 1 GENERAL Frequency coverage Type of emission Antenna impedance Operating temperature range Power supply requirement Current drain At 13

IC-M504 SERVICE MANUAL

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