SERVICE MANUAL
Contents
1.2. Le tug LI m 6 m 14 HE 2 E Jel E I E ca 11 gg 5 RI5 cmm 7 R49 ZA ICQ 5 4 R43 081 242 I9 m Col NZ C120 111077 2764 R14 18 RUE A C 5 VS 015 x C115 145 eB B oL
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4. cu SSH Ct BAT 10058 31 50 F E 51 81 g C26 17 7 100 5 S 30 R 7 50 R49 24 30 100 30 cu 1 00 Bg 8 106 2 2a 81 51 if 81 51 3233 i 1 A BEE 1 R i 3 i Eg Fd H ix to MAIN unit J3 8 2 MAIN UNIT TOP VIEW
5. 0 3 9V CLTX CLRX SCKO SOIO SINO KEY 8 a 2 KEYS El REY a DTV pm KEN 23 22 21 20 19 18 17 16 5 4 3 9 8 7 6 5 4 3 2 1 0 gt lt lt 22 C21 55962565 656 904 0 001 0 001 22 ESN SO ga CELT IC3 26 p71 P21 A17 HIC 4553 P72 P20 A16 DVRH P17 AD15 DVSS P16 AD14 P73 DA00 P15 AD13 SCK CSO sl n LEE ce TAI AVCC P13 AD11 AVRH P12 AD10 OCP1 gt lols AVRL P11 ADO9 U a L lt lt aaa AVSS P10 AD08 Cli P50 ANO SIN3 PO7 ADO7 _____ j P51 AN1 SOT3 P06 AD06 P52 AN2 SCK3 P05 AD05 eie sors correa 1 d MB90F583BPFV G oa 2 SERPET TTET P54 AN4 SIN4 P02 AD02 2 EEOC 8222 P55 AN5 SOT4 PO1 ADO1 P56 ANG SCK4 POO ADOO 57 AN7 79 _ L P80 IRQO x1 L gt R87 P81 IRQ1 xo 89 Q5 10k 55 X0A X1A PA2 71 w V4 61 5 2 P62 SCK2 P63 PPG1 P64 PPGO P65 CKOT P90 TINO INO P91 TIN1 IN1 P92 TIN2 IN2 P93 TOTO IN3 P94 TOT1 OUTO P95 TOT2 OUT1 P82 P83 HD61202UFS IC6 HD61202UFS 66 SEGZ1 C19 C18 7 98MHz 10 L J 33 L L 5Vp p X2 C17 C16 DMX 265 24 24 SEG109 28 53 52084 SEG108 29 52 _ 52085 ___5 0107 30 51 52086 Y42 SEG106 Y41 SEG105 Y40 SEG104 Y39 SEG103 Y38
6. Crystal filter 11 2 FL 310 VCO circuit PLL IC IC2 uPD3140GS Reset IC 4 S 80928ANMP Inverter IC IC5 NJM2360M SECTION 3 CIRCUIT DESCRIPTION 3 1 RECEIVER CIRCUITS 3 1 1 RF AMPLIFER CIRCUIT MAIN UNIT The circuit amplifies signals within the range of frequen cy coverage and filters out of band signals The signals from the antenna connector are amplified at the HF amplifier Q1 via the bandpass filter L1 C3 The ampli fied signals are applied to the 1st mixer circuit Q2 after out of band signals are suppressed at the 3 stage of bandpass filters L2 L3 L4 C11 C14 C17 3 1 2 1ST MIXER AND 1ST IF CIRCUITS MAIN 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 The signals from the RF circuit are mixed at the 1st mixer Q2 with a 1st LO signal coming from the PLL circuit to pro duce a 21 7 MHz 1st IF signal The ist IF signal is applied to the crystal filters F11 F12 to suppress out of band signals The filtered 1st IF signal is amplified at the 1st IF amplifier Q3 then applied to the 2nd mixer circuit IC1 pin 16 3 1 3 2ND IF AND DEMODULATOR CIRCUITS MAIN UNIT The 2nd mixer circuit converts the 1st IF signal into a 2nd IF signal A double conversion s
7. GNP R100 R102 C135 xs 15k 120 100k i 94 R43 180k 330 T 2564116 680 C786 ap 680 154 22 ces C69 C77 SN C97 1 T 0 01 Maia 0 033 Q5 C76 C80 SL 13 0 001 C Rea R65 2SK210 0 001 0 1 2 CAP 64 15k D J i 3 3k R5 R es L11 3 GND LOOP e RV 148 L9 Ss 0 1u R47 Q8 C83 18 251 100 Sw 2804215 12 2 C81 DATA FSK ae C74 110 A7 12 pag 651 C84 2 7u M hec 52 T nia 25 4215 R60 M5218AFP 470 562 4 8Vp p o EXT GPS IC6 TC7W14FU 8 5 C101 IS 1 po 121 0 0047 NMEAI NMEAI hot NMEAI 3 s T NMEAO 2 5 PDATA GND 4 P 5 6 P Q gt gt a 9 O Q11 25 4116 T 0 775V Rp 6000 Load O EL E gt d 10 GND 0 48 DATAS 8 7 DATAS 7 ___ 6 DATAN 6 L c 5 DATAM 5 r mscr ln 1 DSC DSC 3 _ Ve Vcc 2 L di GND 1 SP1 Q16 DTC144TU 10 2 Icom Inc 1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan Phone 06 6793 5302 Fax 06 6793 0013 URL http Awww icom co jp world index html Icom America Inc Corporate Headquarters 2380 116th Avenue N E Bellevue WA 98004 U S A Phone 425 454 8155 Fax 425 454 1509 URL http www icomamerica com lt Customer Service gt Phone 425 454 7619 Icom Canada Glenwood Centre 150 6165 Highway 17 D
8. 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 4030011600 S CERAMIC C1608 JB 1C 104KT N 7030003610 S RESISTOR 273 27 4030007090 S CERAMIC C1608 CH 1H 470J T A 7030003520 S RESISTOR ERJ3GEYJ 472 4 7 4030011600 S CERAMIC C1608 JB 1C 104KT N 7030003210 S RESISTOR ERJ3GEYJ 120 V 12 Q 4510004630 S ELECTROLYTIC ECEV1CA100SR 7030003560 S RESISTOR 103 V 10 4030006900 S CERAMIC C1608 JB 1E 103K T A 7030003480 S RESISTOR 222 V 2 2 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003280 S RESISTOR 470 V 47 4030011600 S CERAMIC C1608 JB 1C 104KT N 7030003280 S RESISTOR 470 V 47 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003280 S RESISTOR 470 V 47 4030006900 S CERAMIC C1608 JB 1E 103K T A 7410000990 S ARRAY EXB V8V 470JV 4030012600 S CERAMIC C2012 JB 1A 105M T A 7030003620 S RESISTOR 333 V 33 4030007160 S CERAMIC C1608 CH 1H 181J T A 7030003320 S RESISTOR 101 V 100 0 4030007160 S CERAMIC C1608 CH 1H 181J T A 7030003410 S RESISTOR 561 V 560 4030007040 S CERAMIC C1608 CH 1H 180J T A 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 Q 4610002150 S TRIMMER CTZ3S 10A W1 AF 7030003320 S RESISTOR 101 V 100 0 4030007020 S CERAMIC C1608 CH 1H 12
9. I 220 220 wr 11 NJM2058M b 1 4 X25 98 COM DS8 059 DS10 DS20 DS21 DS22 DS29 I T 0 a DS32 D sa COVES m 8 8 8 Rags 8 8 8 Si P 3582 56 unm 93 COMSO 220 220 220 S COME DS11 DS12 DS13 DS24 DS25 DS26 DS30 9 90 COM33 Y 4 s7 40533 S8 40536 159 R67 3 3k HD61203UFS 89 2 2 5 2 2 2 2 89 COMS4 N R46 87 COM36 y N R52 To R53 Bs 86 COM37 220 220 85 COM38 p mA 7 84 39 83 40 ____ 82 41 S15 R73 4 7k R78 R79 R74 2 2M 1 2M NTCCF20123SH R82 R71 3 3k R70 3 3k R68 15k 81 42 R57 s13 S14 D4 ENT DS41 MA8043 517 18 S20 R65 IC10D 15 NJM2058M 15 NJM2058M 100 15 NJM2058M IC9D 15 NJM2058M 2 5 5V 520 0537 053 0539 0540 0542 LEVEL A b 8 7 98V Q3 8 8 9 J 25 1132 E PSTB d Z7 lt R106 CLIX RT ANAL d T 10k d 25 4116 RCEV NA d C13 C12 0 001 100 K gt Q6 R107 2SC4116 3 3k R102 1k ojojo lt t N el col SE SEES Yo to D o OOO OOO 5 LLI LLI N N NNN dp dp co oe fon ojojo lt t lt N Se Se bul bad sd Dal bad bd to CONTRAST 1 1 4V
10. UE m L V 12 P T Ll UL B ee eur 19 AS CM EX SS 5 ts CA S 1 g SS peg pa gt n 2 R7 094 E yf Cie C48 Ol P Rn g P n Tct Aas BS Ut oe gj g aw Tr i Wy ie be cap em 1550 05 PSI 95 8 59 T 627 C42 5 C143 C29 B EBs 558 T ca 5 ME d C150 2 CAD a RU C44 13 10 11 T Ji e 8 BET AT meg Cue D in 553 m AD S a8 Mi dd gt 1 10 R5 S Gr B Des 9 S 4 588 7 8383 RITS C9 FE aie L E ej 5 68 C159 a EN Ra 3 x miku ICF3 H GND CM 2 gu d 24 192 Cire 91 to OPC 951 s K i 58 555 a bo 11 E C gt 1 NMEAI to OPC 945 ICF3 5 to LOGIC unit J1 SECTION 9 BLOCK DIAGRAM Q18 Q19 FI3 CH70 25 4116 CERAMIC BUFF K BPF RT VAN IC4 IC3 IC1 Q3 FI1 Fl2 3stage Q1 1stage NJM2211M M5218AFP 7 TA31136FN 2902714 FL 310 Q2 3SK292 lt lt 3SK166 DSC Beef fe IR Rn FM IF IC X2 CR 659 21 25 2 IC10 uPD3
11. 183 V 18 ERJ3GEYJ 203 20 103 V ERJ3GEYJ 103 V ERJ3GEYJ 103 V 10 kQ 10 kQ ERJ3GEYJ 102 V 1 10 kQ ERJ3GEYJ 103 V 10 kQ ERJ3GEYJ 393 V 39 ERJ3GEYJ 473 V 47 kQ ERJ3GEYJ 103 V 10 kQ ERJ3GEYJ 332 V 3 3 C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1C 273K T A C1608 JB 1H 102K T A ECEV1CA471P C1608 JB 1H 102K T A ECEV1AA221P C1608 CH 1H 271J T A C1608 JB 1H 102K T A ECEV1AA101SP C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 CH 1H 240J T A C1608 CH 1H 240J T A C1608 CH 1H 330J T A S Surface mount LOGIC UNIT ORDER ORDER E NN TE cene 4030007010 4030006860 4030006860 4030006860 4030006860 4030006860 4030006860 4030006860 4030006860 4030006860 4030009990 4030006860 4550006660 4510005370 4030006860 4030006860 6510019500 6510021300 6510021860 5030001850 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 5040002310 3020000020 8900006530
12. S RESISTOR ERJ3GEYJ 272 V 2 7 7030003480 S RESISTOR ERJ3GEYJ 222 V 2 2 s 7030003380 S RESISTOR ERJ3GEYJ 331 330 Q 7030003450 S RESISTOR ERJ3GEYJ 122 V 1 2 7030003620 S RESISTOR 333 33 7030003460 S RESISTOR ERJ3GEYJ 152 V 1 5 7030003620 S RESISTOR ERJ3GEYJ 333 33 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 7030003480 S RESISTOR 222 V 2 2 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 Q 7030003680 S RESISTOR 104 V 100 7030003560 S RESISTOR ERJ3GEYJ 103 10 7030003290 S RESISTOR ERJ3GEYJ 560 V 56 Q 7030003400 S RESISTOR ERJ3GEYJ 471 470 7030003520 S RESISTOR ERJ3GEYJ 472 V 4 7 7030003450 S RESISTOR ERJ3GEYJ 122 V 1 2 kQ 7030003520 S RESISTOR ERJ3GEYJ 472 V 4 7 7030003460 S RESISTOR ERJ3GEYJ 152 V 1 5 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 kQ 7030003390 S RESISTOR ERJ3GEYJ 391 390 Q 7030003560 S RESISTOR 103 V 10 7030003740 S RESISTOR 334 V 330 7030003560 S RESISTOR ERJ3GEYJ 103 10 7030003460 S RESISTOR ERJ3GEYJ 152 V 1 5 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 7030003640 S RESISTOR ERJ3GEYJ 473 47 7030003670 S RESISTOR ERJ3GEYJ 823 V 82 kQ 7310002740 S TRIMMER RV 150 14 103 7030003580 S RESISTOR ERJ3GEYJ 153 V 15 7030003500 S RESISTOR
13. SEG102 Y37 SEG101 Y36 SEG100 Y35 SEG99 Y34 SEG98 Y33 SEG97 Y32 SEG96 Y31 SEG95 SEG94 Y29 SEG93 Y28 SEG92 Y27 SEG91 Y26 SEG90 Y25 SEG89 Y24 SEG88 Y23 SEG87 SEG98 gt SEGOG 41 95 42 SEG94 43 SEG93 44 SEG91 46 SEG89 48 SEG88 49 SEG8 50 D3 SB10 05PCP 9 SLF7032T 221MR29 2 SEG104 33 SEG103 34 SEG101 36 5 99 38 07 06 ped 47 170 I C32 11 L2 C9 7 C8 R38 220 UT SLF7032T 681MR16 2 220 J 1 5k R37 8 2k 10 1 PSTB PCK PDATA UNLK CLTX CLRX RCEV SQL DDEC DSMOD GND to MAIN unit J3 DATAM DATAS 5V 10 2 MAIN UNIT SQL H8V C62 C61 0 022 0 001 C39 L14 C30 C29 C28 2 2u 0 001 0 022 0 01 C46 C45 C31 R20 C27 R14 C21 C19 C18 0 1 47 001 100 0 001 10 0 001 0 001 0 01 LI nas 7 C33 C22 L5 77 R17 C32 CHASSIS 1 5k 0 022 C20 14 C16 C15 L3 C13 L15 C144 ANT EX qud C23 5 440 0 5p 0 5p 15 440 6p 68n 0 001 1 G 10 8036 TE y 98 2714 6 001 FL 310 FL 310 j 6 001 0126 fp RI TA31136FN 82k 7 5V R96 100 R117 C150 560k 222 1196 1k T 6 001 C132 C133 Klaw C149 0 027 0 027 9504116 0 1 K K 022 R 2564116 9 9922 C137 25 4116 4 C131 9 1 AFO 0 22 R98 1 8 2k R116 R118 R106
14. port for serial signal from the NMEA connector MAIN unit J1 via 36 the photo coupler MAIN unit IC5 and buffer amplifer MAIN unit IC6 Outputs serial signal to the NMEA NMEAO connector MAIN unit J1 via the buffer amplifier Q13 Q14 D11 Input port for noise level signal DC voltage for squelch operation 41 44 DIMO Output LCD backlight control signals DIM3 I for the dimmer circuit Q2 Q6 DDEC Input port for the DSC decode signal Low DSC signal is decoded Input port for the PLL unlock signal UNLK ow While PLL is locked 52 53 CS1 Outputs chip select signal for the LCD CS2 drivers IC6 1C8 54 RW Output control signals for the LCD dri 55 56 DI E ver IC6 1C8 Input port for the control signal from IC M501EURO via the photo coupler 57 DATAS MAIN unit IC8 and buffer amplifier MAIN unit IC6 Outputs the control signal to DATAM M501EURO via the Buffer amplifier MAIN unit Q11 Q12 D10 E s LED MAIN unit DS1 ___ KEYOTR hoa pon ote AL 77 T M Outputs chip select signal for the clock IC IC3 PSTB Outputs strobe signals for the PLL cir Cult 83 90 DBO Output data signals for the LCD driver l DB7 6 8 Outputs clock signal to the clock IC 97 SO Outputs serial signal for the clock IC IC3 Input port for serial signal from the clock IC IC3 KEY 1 99 100 KEY 2 Input port for the 1 2 keys SECTI
15. the variable components Turn them slowly and smoothly 4 DO NOT short any circuits or electronic parts An insu lated tuning tool MUST be used for all adjustments 5 DO NOT keep power ON for a long time when the termi nal unit is defective 6 READ the instructions of test equipment thoroughly before connecting equipment to the terminal unit SECTION 1 SECTION 2 SECTION 3 SECTION 4 4 4 SECTION 5 SECTION 6 SECTION 7 SECTION 8 8 8 SECTION 9 SECTION 10 10 1 LOGIC UNIT 10 2 MAIN UNIT 1 2 TABLE OF CONTENTS SPECIFICATIONS INSIDE VIEWS CIRCUIT DESCRIPTION cosets spe on Ee Cee RES NPS A a DSC 1 11 Sosa EET NMEA AND DATA INTERFACE CIRCUITS POWER PORT ALLOCATIONS ADJUSTMENT PROCEDURES PREPARATION scie Soccer ed to oe iouis o eae woes REFERENCE AND RECEIVER ADJUSTMENTS PARTS LIST MECHANICAL PARTS SEMI CONDUCTOR INFORMATION BOARD LAYOUTS Be s i eR Sen ede eee ea quin 1111 111 ZE a Lats E es each BLOCK DIAGRAM VOLTAGE DIAGRAM SECTION 1 GENERAL Frequency coverage Mode Power supply requirement Usable temperature range Cur
16. 0 1790001010 6050010290 6050011030 6200009370 6200008880 7030003280 7030003280 7030003280 7030003280 7410000990 7030003680 7030003680 7030003680 7030003680 7030003680 7030003680 7030003680 7030003680 7030003680 7030003680 7030003680 7030003680 7030003680 7030003680 7030003680 7030003680 7030003680 7030003680 7030003680 7030003680 7030003680 7030003680 7030003680 7030003630 7030003630 7030003560 7030004050 7030004050 7030006600 7030006460 7030003680 7030003680 7030003680 7030003680 7030003360 7030003360 7030003360 7030003360 5 5 5 5 5 5 5 5 5 5 S TRANSISTOR S TRANSISTOR S TRANSISTOR S TRANSISTOR S TRANSISTOR S DIODE S DIODE S DIODE S ZENER S XTAL S XTAL S COIL S COIL S RESISTOR S RESISTOR S RESISTOR S RESISTOR S ARRAY S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR MB90F583BPFV G 58 2432 RTC 4553A S 80928ANMP DDR T2 NJM2360M TE3 HD61202UFS HD61202UFS HD61203UFS NJM2058M T 1 NJM2058M T 1 2SC4116 BL TE85R 258
17. 0052942 S CERAMIC S CERAMIC S TANTALUM S CERAMIC S CERAMIC S ELECTROLYTIC S CONNECTOR S CONNECTOR S CONNECTOR S CONNECTOR S LED TRANSFORMER PIEZO BUZZER PCB C1608 JB 1H 102K T A C1608 JB 1H 102K T A ECST1DY475R C1608 JB 1H 821K T A C1608 JB 1H 222 ECEV1CA100SR B5B PH SM3 TB B10B ZR SM3 TF 52559 2290 BO2B EH S SML 311YTT86 12T01 PS1740P02 B 5473B S Surface mount SECTION 6 CHASSIS PARTS REF NO ORDER NO 6510004880 8900009740 8900009690 6910011940 8410002340 8210017200 8210017150 8930052060 8930052050 8930052430 8810008660 8810008660 8810004540 8810006050 8930052290 8850000690 8810004540 8930034300 8930049320 MAIN UNIT m ORDER NO DESCRIPTION EE 2520000110 MECHANICAL PARTS DESCRIPTION Connector MR DS E 01 Cable OPC 945 Cable OPC 951 Bead ZCAT2436 1330A M 2349 heatsink 2349 front panel assembly 2345 rear panel assembly 2345 F packing 2345 R packing 2345 crip Screw PH BT M3 x 8 NI ZU Screw PH BT M3 x 8 NI ZU Screw M3 x 8 SUS Icom screw E7 O ring AD Flat washer M3 3x7x0 5 SUS Screw M3 x 8 SUS 1542 ANT seal 2288 VENT sheet D O O O a Piezo buzzer PS1740P02 8510012590 LOGIC UNIT NM ORDER NO 6510021860 3020000110 5030001850 8930052541 8210016790 8930051950 8930052530 UNPACKING REF NO ORDER NO 8610010560 8010018151 8850000500 8
18. 04 V 100 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003630 S RESISTOR 393 V 39 4030006900 S CERAMIC C1608 JB 1E 103K T A 7030003580 S RESISTOR ERJ3GEYJ 153 V 15 kQ 4030008880 S CERAMIC C1608 JB 1C 223K T A 7310002720 S TRIMMER 148 RHO3A3AS3X0DA 472 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003580 S RESISTOR ERJ3GEYJ 153 V 15 kQ 4030006900 S CERAMIC C1608 JB 1E 103K T A 7030003440 S RESISTOR 102 V 1 4030008880 S CERAMIC C1608 JB 1C 223K T A 7030003440 S RESISTOR 102 V 1 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003280 S RESISTOR ERJ3GEYJ 470 V 47 Q 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003540 S RESISTOR 682 6 8 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003400 S RESISTOR 471 V 470 4030007080 S CERAMIC C1608 CH 1H 390J T A 7030003400 S RESISTOR 471 V 470 4030007080 S CERAMIC C1608 CH 1H 390J T A 7030003540 S RESISTOR 682 6 8 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003680 S RESISTOR 104 V 100 4030011600 S CERAMIC C1608 JB 1C 104KT N 7030003210 S RESISTOR ERJ3GEYJ 120 V 12 4030007130 S CERAMIC C1608 CH 1H 101J T A 7030003520 S RESISTOR 472 4 7 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003610 S RESISTOR 273 V 27
19. 06860 4030006900 4030006900 4030006860 4030007030 4030007030 4030006860 4030006860 4030011600 4030006860 4030006900 S CERAMIC S TANTALUM S CERAMIC S CERAMIC S CERAMIC S CERAMIC S TANTALUM S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S ELECTROLYTIC S CERAMIC S MYLAR S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC ELECTROLYTIC S CERAMIC S CERAMIC S CERAMIC S ELECTROLYTIC S CERAMIC S CERAMIC S CERAMIC S ELECTROLYTIC S CERAMIC S CERAMIC S CERAMIC S TANTALUM S CERAMIC S CERAMIC S CERAMIC S TANTALUM S CERAMIC S CERAMIC S CERAMIC S CERAMIC S ELECTROLYTIC S CERAMIC S CERAMIC S CERAMIC S ELECTROLYTIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC C1608 JB 1E 103K T A ECST1AY225R C1608 JB 1H 102K T A C1608 JB 1C 104KT N C2012 JB 1A 105M T A C1608 JB 1H 471K T A TESVA 1V 104M1 8L C1608 CH 1H 020B T A C1608 CH 1H 020B T A C1608 CH 1H 040B T A C1608 CH 1H R75B T A C1608 JB 1H 102K T A C1608 JB 1E 103K T A C1608 1H 200J T A C1608 JB 1H 102K T A C1608 CH 0508 C1608 CH 1H 120J T A C1608 JB 1H 102K T A C1608 CH 1H 120J T
20. 0910052953 8930052541 S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S TANTALUM S ELECTROLYTIC S CERAMIC S CERAMIC S CONNECTOR S CONNECTOR CONNECTOR LCD S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED S LED LITHIUM CABLE PCB LCD CONTACT C1608 CH 1H 100D T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 CH 1H 200J T A C1608 JB 1H 102K T A ECST1CC226R ECEV1AA221P C1608 JB 1H 102K T A C1608 JB 1H 102K T A 52559 2290 52365 1091 BH 800 8 TSD0402 UFFDCW SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT86 SML 311YTT8
21. 0J T A SP ccc ccm cm Pc AN A EN a Pom A A SA a SS SS SM EN AN EN 7030003550 S RESISTOR 822 V 8 2 4030011600 S CERAMIC C1608 JB 1C 104KT N 7030003550 S RESISTOR 822 V 8 2 4030006900 S CERAMIC C1608 JB 1E 103K T A 7030003770 S RESISTOR ERJ3GEYJ 564 V 560 4030006860 S CERAMIC C1608 JB 1H 102K T A 7030003710 S RESISTOR ERJ3GEYJ 184 V 180 4030008880 S CERAMIC C1608 JB 1C 223 S Surface mount MAIN UNIT ORDER ORDER TE E cce 4030006900 45500061 70 4030006860 4030011600 4030012600 4030006850 4550000530 4030009520 4030009520 4030009910 4030009560 4030006860 4030006900 4030009990 4030006860 4030009920 4030007020 4030006860 4030007020 4030006860 4030006900 4030006900 4030008850 4030008900 4030008900 4030006850 4030008920 4030011810 4030011600 4030011600 4510004630 4030011600 4340000020 4030011600 4030006870 4030006900 4030006880 4030011600 4030011600 4030006850 4030006880 4030011600 4030007090 4030006860 4030006900 4510004590 4030006900 4030011600 4030011600 4510004630 4030006900 4030011600 4030011600 4510004630 4030006860 4030007090 4030011600 4550006150 4030011600 4030011600 4030012600 4550006130 4030008890 4030008890 4030006870 4030009490 4510004630 4030011600 4030006860 4030006860 4510004630 40300
22. 1132 T100 R 2SA1362 GR TE85R RN1404 TE85R 2SC4116 BL TE85R HSU88TRF 156184 TE85R SB10 05PCP TD MA8043 L TX CR 610 7 9872 MHz DMX 26S 32 768KHZ SLF7032T 221MR29 2 SLF7032T 681MR16 2 ERJ3GEYJ 470 V 47 ERJ3GEYJ 470 V 47 ERJ3GEYJ 470 V 47 ERJ3GEYJ 470 V 47 EXB V8V 470JV ERJ3GEYJ 104 V 104 V ERJ3GEYJ 104 V ERJ3GEYJ 104 V 104 V 104 V ERJ3GEYJ 104 V 104 V 104 V ERJ3GEYJ 104 V 104 V 104 V 104 V ERJ3GEYJ 104 V 104 V 104 V ERJ3GEYJ 104 V ERJ3GEYJ 104 V ERJ3GEYJ 104 V ERJ3GEYJ 104 V 104 V ERJ3GEYJ 104 V ERJ3GEYJ 104 V ERJ3GEYJ 393 V ERJ3GEYJ 393 V 39 kQ ERJ3GEYJ 103 V 10 180 V 1 180 V 1 Q RR0816P 822 D 8 2 RR0816P 152 D 1 5 ERJ3GEYJ 104 V 100 ERJ3GEYJ 104 V 100 ERJ3GEYJ 104 100 ERJ3GEYJ 104 V 100 100 kQ 100 kQ 100 kQ 100 kQ 100 kQ 100 kQ 100 kQ 100 kQ 100 kQ 100 kQ 100 kQ 100 kQ 100 kQ 100 kQ 100 kQ 100 kQ 100 kQ 100 kQ 100 kQ 100 kQ 100 kQ 100 kQ 100 kQ 39 kQ Z ZK AA AA AAA AA s s s AA AAA AA ERJ3GEYJ 221 220 221 V 220 221 V 220 221 V 220 LOGIC UNIT ORDER L3
23. 140GS 25 4215 peces REG Q5 2SK210 Q6 Q8 Q15 2581132 IC9 D4 05 MA363B 2SC4215 25 4215 016 DTC144TU 78085 4 R8V PWR Vcc CTRL RCEV MAIN unit ee M 17 2564116 DSC LOGIC unit gt DSC IC2 IC1 58 2432 MB90F583BPFV G ee TC7W14FU TLP121 EEPROM d _D gt e NMEAI COUPLER NMEAI X1 CR 610 Q13 25 4116 X2 DMX 26S IC4 Q14 DTC144TU D11 DA204U NMEAO S 80928ANMP Q9 DTC144TU D8 DA204U RESET gt LEVEL ICF3 IC3 CONV RTC 4553A CLOCK gt IC6 IC8 TC7W14FU TLP121 DATAS PHOTO KEY COUPLER DATAS Q11 25 4116 Q12 DTC144TU D10 DA204U DATAM DATAM gt _ _ __ DISTRESS SW DS1 IC6 IC7 HD61202UFS TSD0402 8 HD61203UFS LCD KT RIVER 4 Q2 Q6 25 4116 25 1132 DIM LED CTRL K SP1 BEEP SECTION 10 VOLTAGE DIAGRAM 10 1 LOGIC UNIT e e e e ojo e e e c lt t o T T N N N LCD BACKLIGHT 873117 E E E IC10B R72 NJM2058M 10k 22 COM n _ PN L DS2 DS3 DS4 0514 DS15 0516 0527 4 9 B lt 9 3 3 220 220 IC10A 055 056 057 0517 0518 0519 0528 4 b ra 8 9 8 DS31 DS34 TII
24. 6 SML 311YTT86 SML 311YTT86 CR2032 OPC 618 5475C SRCN 2349 SP N W 1 MAIN UNIT 1110003200 1130007610 1110003750 1110003650 1170000280 1130007420 1170000280 1110002030 1180001070 1580000700 1580000490 1530002360 1530002850 1560000330 1530002600 1530002600 1530002600 1590000660 1530002850 1590000660 1530002850 1590000660 1520000460 1590000660 1530002850 1530002850 1530002850 1530002850 1530002850 1530002850 1790001330 1790000640 1790000640 1750000550 1750000130 1750000550 1750000130 1750000130 1790000950 1790000950 1790000950 2010002420 2010002420 2020001680 6070000210 6050010800 6150003820 6150003820 6150003820 6150003820 6200003050 6200004600 6200002410 6200003100 6130002360 6200003090 6200004700 6200004700 6200004700 6200004920 6200002420 030003670 7030003620 7030003600 7030003560 7030003640 7030003320 7030003400 7030003320 7030003560 S FET S TRANSISTOR S TRANSISTOR S FET S TRANSISTOR S TRANSISTOR S TRANSISTOR S TRANSISTOR S TRANSISTOR S TRANSISTOR S TRANSISTOR S TRANSISTOR S TRANSISTOR S TRANSISTOR S TRANSISTOR S TRANSISTOR S TRANSISTOR S TRANSISTOR S TRANSISTOR S TRANSISTOR S ZENER S VARICAP S VARICAP S DIODE S DIODE S DIODE S DIODE S DIODE S ZENER S ZENER S ZENER MONOLITH MONOLITH CERAMIC S DISCRIMINATOR S XTAL COIL COIL COIL COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S
25. 810001490 2289 VCO case DESCRIPTION Connector BH 800 8 Lithium CR2032 LCD TSD0402 UFFDCW LCD contact SRCN 2349 SP N W 1 2349 reflector 2349 LCD holder 2349 LCD filter DESCRIPTION 2040 knob bolt black 2345 mobile bracket 1 Spring washer M5 SUS Screw PH A M5 x 20 SUS 8850000180 Screw abbreviations Flat washer 5 SUS PH Pan head SUS Stainless BT Self Tapping NI ZU Nickel zinc __ MP21 CH 9 MP23 CH M CH Z d MP18 CH Ss LOGIC UNIT Unit abbreviations CH CHASSIS PARTS M MAIN UNIT L LOGIC UNIT SECTION 7 SEMI CONDUCTOR INFORMATION TRANSISTORS AND FET S 2SA1362 GR 2SB1132T100 R Symbol AEG Symbol BAR 2SK210 GR 3SK166A 2 T7 Symbol YG Symbol K 25 2714 Symbol QY 3SK292 Symbol UK 25 4116 BL Symbol LL B C E DTC144 TU T107 Symbol 06 B C E DIODES 2SC4215 O 1SS184 Symbol QO Symbol B3 Fh RN1404 MA8036 L Symbol XD Symbol 6 B C E 155355 Symbol 8043 L Symbol 4 3 DA204 UT107 Symbol K 8056 Symbol 5 6 HSU88TRF Symbol 9 SB10 05PCP TD Symbol SA MA363 B Symbol 6D SECTION 8 BOARD LAYOUTS 8 1 LOGIC UNIT TOP VIEW
26. A C1608 JB 1H 102K T A C1608 JB 1E 103K T A C1608 JB 1E 103K T A C1608 JB 1C 123K T A C1608 JB 1C 333K T A C1608 JB 1C 333K T A C1608 JB 1H 471K T A C1608 JB 1C 473K T A C1608 JB 1A 224K T N C1608 JB 1C 104KT N C1608 JB 1C 104KT N ECEV1CA100SR C1608 JB 1C 104KT N ECWU 1C 333JB5 C1608 JB 1C 104KT N C1608 JB 1H 222K T A C1608 JB 1E 103K T A C1608 JB 1H 472 C1608 JB 1C 104KT N C1608 JB 1C 104KT N C1608 JB 1H 471K T A C1608 JB 1H 472K T A C1608 JB 1C 104KT N C1608 CH 470J T A C1608 JB 1H 102K T A C1608 JB 1E 103K T A 16 MV 470 HC C1608 JB 1E 103K T A C1608 JB 1C 104KT N C1608 JB 1C 104KT N ECEV1CA100SR C1608 JB 1E 103K T A C1608 JB 1C 104KT N C1608 JB 1C 104KT N ECEV1CA100SR C1608 JB 1H 102K T A C1608 CH 1H 470J T A C1608 JB 1C 104KT N ECST1CY105R C1608 JB 1C 104KT N C1608 JB 1C 104KT N C2012 JB 1A 105M T A ECST1VY224R C1608 JB 1C 273K T A C1608 JB 1C 273K T A C1608 JB 1H 222K T A C1608 JB 1H 821K T A ECEV1CA100SR C1608 JB 1C 104KT N C1608 JB 1H 102K T A C1608 JB 1H 102K T A ECEV1CA100SR C1608 JB 1H 102K T A C1608 JB 1E 103K T A C1608 JB 1E 103K T A C1608 JB 1H 102K T A C1608 CH 1H 150J T A C1608 CH 1H 150J T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1C 104KT N C1608 JB 1H 102K T A C1608 JB 1E 103K T A MAIN UNIT 4030006860 4030006860 4550006830 4030009490 4030006870 4510004630 6510022310 6510022030 6510019500 6510003380 5040002310 5920000570 2520000110 091
27. COIL S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR TA31136FN ET DS8 M5218AFP 600C NJM2211M TE1 TLP121 GB TPL TC7W14FU TE12L TLP121 GB TPL TA7808S TA7805F TE16L 35 292 TE85R 3SK166A 2 T7 25 2714 TE85R 2304116 8 TE85R 2SK210 GR TE85R 25 4215 TE85R 25 4215 TE85R 25 4215 TE85R DTC144TU T107 2304116 8 TE85R DTC144TU T107 2304116 8 TE85R DTC144TU T107 2581132 T100 DTC144TU 107 2304116 8 TE85R 25 4116 TE85R 25 4116 TE85R 25 4116 TE85R 2SC4116 BL TE85R 25 4116 TE85R MA8036 L TX MA363B TX MA363B TX 133355 TE 17 DA204U T107 156355 TE 17 DA204U T107 DA204U T107 8056 TX 8056 TX 8056 TX FL 310 21R15AB FL 310 21R15AB ALFY450E CDBCA450CX24 CR 659 21 25 MHz LS 440 LS 440 LS 440 LS 440 NL 322522T R82J 3 MLF1608D R15K T NL 252018T 056J NL 322522T 3R9J 3 LB 257 NL 322522T 2R7J 3 MLR1608M R10K T MLR1608M R10K T MLR1608M R10K T MLF1608A 2R2K T NL 252018T 068J ERJ3GEYJ 823 V 82 kQ ERJ3GEYJ 333 V 33 ERJ3GEYJ 223 V 22 kQ ERJ3GEYJ 103 V 10 kQ ERJ3GEYJ 473 V 47 kQ ERJ3GEYJ 101 V 100 Q ERJ3GEYJ 471 V 470 Q ERJ3GEYJ 101 V ERJ3GEYJ 103 V 100 Q 10 kQ S Surface mount MAIN UNIT MAIN UNIT ORDER ORDER TE E cnn TE E cene 7030003200 S RESISTOR ERJ3GEYJ 100 V 10 Q 7030003490
28. ERJ3GEYJ 332 V 3 3 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 7030003280 S RESISTOR ERJ3GEYJ 470 V 47 7030003330 S RESISTOR ERJ3GEYJ 121 V 120 9 7030003380 S RESISTOR ERJ3GEYJ 331 330 Q 7030003680 S RESISTOR 104 V 100 7410000950 S ARRAY EXB V8V 102JV 7030003520 S RESISTOR ERJ3GEYJ 472 V 4 7 7030003550 S RESISTOR 822 7030003410 S RESISTOR ERJ3GEYJ 561 V 7030003320 S RESISTOR ERJ3GEYJ 101 V 7030003300 S RESISTOR ERJ3GEYJ 680 V 7030003320 S RESISTOR ERJ3GEYJ 101 V 7030003480 S RESISTOR 222 7030003440 S RESISTOR ERJ3GEYJ 102 7030003440 S RESISTOR ERJ3GEYJ 102 7030003420 S RESISTOR ERJ3GEYJ 681 V 7030003660 S RESISTOR ERJ3GEYJ 683 V 7030003420 S RESISTOR ERJ3GEYJ 681 V 7030003660 S RESISTOR ERJ3GEYJ 683 V 7030003320 S RESISTOR ERJ3GEYJ 101 V 7030003500 S RESISTOR 332 V 7030003480 S RESISTOR 222 7030003320 S RESISTOR ERJ3GEYJ 101 V 7030003360 S RESISTOR 221 V 7030003550 S RESISTOR 822 7030003460 S RESISTOR ERJ3GEYJ 152 V 7030003760 S RESISTOR ERJ3GEYJ 474 V 7030003760 S RESISTOR ERJ3GEYJ 474 V 7030003280 S RESISTOR 470 V 7030003560 S RESISTOR ERJ3GEYJ 103 V 7030003560 S RESISTOR ERJ3GEYJ 103 V 7030003560 S RESISTOR ERJ3GEYJ 103 V 7030003760 S RESISTOR 474 V 7030003640 S RESISTO
29. ITS LOGIC UNIT CPU IC1 is 16 bit single chip microcomputer and contains serial I O timer A D converter D A converter programmable I O ROM and RAM SYSTEM CLOCK CIRCUIT X1 is a high stability crystal oscilator and oscillated a 7 9872 MHz system clock for the 101 RESET CIRCUIT 4 is a reset IC When turn power ON 4 outputs a reset signal pulse to CPU IC1 pin 75 LCD DRIVER IC6 1C8 are LCD driver for a dot matrix LCD INVERTER CIRCUIT 4 is 8 DC DC converter and converts 8 V from the HV line The converted voltage 8V is used for driving the LCD CLOCK CIRCUIT IC3 is a clock IC and also used for backup the position time information for DSC DIMMER CIRCUIT Q2 Q3 Q6 are dimmer circuit and control the LCD backlight LED 3 7 PORT ALLOCATIONS 3 7 1 CPU LOGIC UNIT Port e name Description KEY 3 KEY 9 Input port for the 3 9 keys CLRX Input port for the cloning data from the buffer MAIN unit D8 CLTX Output port for the cloning data to the buffer MAIN unit Q9 Outputs clock signal for EEPROM IC2 Outputs serial data signal for EEP ROM IC2 Outputs the R8V regulator circuit 26 RCEV MAIN unit Q15 Q16 control signal High While receiving D A output port for the DSC encode DSMOD signal to the buffer amplifier MAIN unit Q17 Port 0 Outputs control signal for the LCD Input
30. NN 7030003360 7030003360 7030003360 7030003360 7030003360 7030003360 7030003360 7030003360 7030003360 7030003590 7030003360 7030003220 7030003220 7030003220 7030003220 7030003220 7030003220 7030003500 7030003500 7030003580 7030003460 7030003500 7030003500 7030003560 7030003520 7510000900 7030003740 7030003790 7030003640 7030003840 7030003810 7030003650 7030003700 7030003680 7030003400 7030003640 7030003560 7030003800 7030003640 7030003200 7030003800 7030003750 7030003800 7030003680 7030003680 7030004120 7030003590 7030004120 7030003560 7030003560 7030003560 7030003440 7030003560 7030003630 7030003640 7030003560 7030003500 4030006860 4030006860 4030006860 4030008890 4030006860 4510006670 4030006860 4510005370 4030011280 4030006860 4510007120 4030006860 4030006860 4030006860 4030009650 4030009650 4030007070 S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S THERMISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESIST
31. O MANUAL CLASS D DSC TERMINAL 05 100 Icom Inc INTRODUCTION This service manual describes the latest service information for the DS 100 CLASS D DSC TERMINAL at the time of publication To upgrade quality any electrical or mechanical parts and internal circuits are subject to change without notice or obligation UHF DSC CONTROLLER 11 Mls DANGER NEVER connect the terminal unit to an AC outlet or to a DC power supply that uses more than 16 V This will ruin the terminal unit DO NOT expose the terminal unit to rain snow or any liquids DO NOT reverse the polarities of the power supply when conecting the terminal unit DO NOT apply an RF signal of more than 20 dBm 100 mW to the antenna connector This could damage the terminal unit 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 1110003200 S C TA31136FN DS 100 MAIN UNIT 5 pieces 8810006050 Screw Icom screw E7 05 100 Rear panel 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 terminal unit 2 DO NOT open the terminal unit until the terminal unit is disconnected from its power source 3 DO NOT force any of
32. ON 4 ADJUSTMENT PROCEDURES 4 1 PREPARATION REQUIRED TEST EQUIPMENT EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGE DC power supply Output voltage 13 8 V DC Digital multimeter Measuring range 10 mV 10 V ai DC voltmet Input impedance 50 DC or bet Frequency range 0 1 300 MHz ter Frequency counter Frequency accuracy 1 ppm or better Sensitivity 100 mV or better AC millivoltmeter Measuring range 10 mV 10 V I Frequency range DC 20 MHz Frequency range 0 1 300 MHz Oscilloscope X 5 2 Output level 0 1 uV 32 mV Measuring range 0 01 20 V generator SSG 1270 17 dBm speak Input impedance 40 o Capacity 5 W or more Frequency range 1 kHz 10 Yo Distortion meter Measuring range 1 100 Yo Impedance 100 CONNECTIONS Standard signal generator 17 to 125 dBm 32 mV to 0 13 UV to the antenna connector DC power supply 13 8 V 15 A 4 2 REFERENCE AND RECEIVER ADJUSTMENTS ADJUSTMENT ADJUSTMENT CONDITION LOCK Receiving VOLTAGE m FREQUENCY Connect an distortion meter with an 100 dummy load to the extenal speaker jack J4 on MAIN unit Connect an SSG to the antenna connector and set as Frequency 156 525 MHz Level 10 uV 97 dBm 1 kHz 3 0 kHz Modulation Deviation Receiving e Turn R29 counter clockwise on the MAIN unit to 9 o cloc
33. OR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S ELECTROLYTIC S CERAMIC S ELECTROLYTIC S CERAMIC S CERAMIC S ELECTROLYTIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC ERJ3GEYJ 221 V 220 Q ERJ3GEYJ 221 220 Q ERJ3GEYJ 221 220 Q ERJ3GEYJ 221 220 Q ERJ3GEYJ 221 V 220 Q ERJ3GEYJ 221 220 Q ERJ3GEYJ 221 220 Q ERJ3GEYJ 221 V 220 Q ERJ3GEYJ 221 220 Q ERJ3GEYJ 183 V 18 ERJ3GEYJ 221 220 Q ERJ3GEYJ 150 15 ERJ3GEYJ 150 15 ERJ3GEYJ 150 V 15 ERJ3GEYJ 150 V 15 ERJ3GEYJ 150 V 15 ERJ3GEYJ 150 V 15 ERJ3GEYJ 332 V 3 3 ERJ3GEYJ 332 V 3 3 ERJ3GEYJ 153 15 ERJ3GEYJ 152 V 1 5 ERJ3GEYJ 332 V 3 3 ERJ3GEYJ 332 V 3 3 ERJ3GEYJ 103 V 10 ERJ3GEYJ 472 V 4 7 kQ NTCCF2012 3SH 223KC T ERJ3GEYJ 334 V 330 ERJ3GEYJ 824 820 ERJ3GEYJ 473 47 ERJ3GEYJ 225 V 2 2 ERJ3GEYJ 125 V 1 2 MO ERJ3GEYJ 563 V 56 ERJ3GEYJ 154 V 150 104 100 ERJ3GEYJ 471 V 470 Q ERJ3GEYJ 473 V 47 ERJ3GEYJ 103 V 10 ERJ3GEYJ 105 V 1 ERJ3GEYJ 473 V 47 kQ ERJ3GEYJ 100 V 10 ERJ3GEYJ 105 V 1 ERJ3GEYJ 394 390 ERJ3GEYJ 105 V 1 ERJ3GEYJ 104 V 100 ERJ3GEYJ 104 V 100 ERJ3GEYJ 203 20 ERJ3GEYJ
34. R 473 7030003380 S RESISTOR ERJ3GEYJ 331 V 8 2 kQ 7030003200 S RESISTOR ERJ3GEYJ 100 V 10 0 560 Q 7030003620 S RESISTOR 333 V 33 100 0 68 Q 100 Q 4030006990 S CERAMIC C1608 CH 1H 080D T A 2 2 kQ 4030006990 S CERAMIC C1608 CH 1H 080D T A 1 4030006980 S CERAMIC C1608 CH 1H 070D T A 1 kQ 4030009510 S CERAMIC C1608 CH 1H 010B T A 680 4030006860 S CERAMIC C1608 JB 1H 102K T A 68 4030007170 S CERAMIC C1608 CH 1H 221J T A 680 4030006860 S CERAMIC C1608 JB 1H 102K T A 68 4030006850 S CERAMIC C1608 JB 1H 471K T A 100 Q 4030006860 S CERAMIC C1608 JB 1H 102K T A 3 3 kQ 4030006850 S CERAMIC C1608 JB 1H 471K T A 2 2 kQ 4030006990 S CERAMIC C1608 CH 1H 080D T A 100 0 4030006970 S CERAMIC C1608 CH 1H 060D T A 220 Q 4030006970 S CERAMIC C1608 CH 1H 060D T A 8 2 kQ 4030006980 S CERAMIC C1608 CH 1H 070D T A 1 5 kQ 4030009500 S CERAMIC C1608 CH 1H OR5B T A 470 kQ 4030009500 S CERAMIC C1608 1H OR5B T A 470 kQ 4030006990 S CERAMIC C1608 CH 1H 080D T A 47 Q 4030006900 S CERAMIC C1608 JB 1E 103K T A 10 kQ 4030006860 S CERAMIC C1608 JB 1H 102K T A 10 kQ 4030009920 S CERAMIC C1608 CH 1H 050B T A 10 kQ 4030006860 S CERAMIC C1608 JB 1H 102K T A 470 kQ 4030007110 S CERAMIC C1608 CH 1H 680J T A 47 kQ 4030006860 S CERAMIC C1608 JB 1H 102K T A 330 Q 4030011770 S CERAMIC C1608 CH 1H 060B T A 7030003680 S RESISTOR ERJ3GEYJ 1
35. e detector section and converted into SQL signal DC voltage at the noise com parator section The SQL signal is output from 13 This squelch circuit is only used for the BUSY detection of Ch70 and is not related the DSC decoder sensitivity and etc 2nd IF filter 450 kHz 21 25 MHz 2 21 25 MHz RSS 2 IC1 TA31136FN 16 13 1st IF 21 7 MHz from Q3 SQL signal to the CPU LOGIC unit IC1 pin 38 O R8V 3 2 PLL CIRCUIT 3 2 1 PLL CIRCUIT MAIN UNIT A PLL circuit provides stable oscillation of the receiver 1st LO frequency The PLL output compares the phase of the divided VCO frequency to the reference frequency The PLL output frequency is controlled by the divided ratio N data of a programmable divider The PLL IC IC2 contains a prescaler programmable counter programmable divider phase detector charge pomp and 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 reference frequency 21 25 MHz 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 3 3 DSC CIRCUITS 3 3 1 DSC DECODE CIRCUIT MAIN UNIT The AF signals from FM IF IC IC1 pin 9 are filtered at the bandpass filter IC3 with 18 dB octave characteristics to re
36. elta B C 4 5B8 Canada Phone 604 952 4266 Fax 604 952 0090 URL http www icomcanada com Icom Australia Pty Ltd A B N 88 006 092 575 290 294 Albert Street Brunswick Victoria 3056 Australia Phone 03 9387 0666 Fax 03 9387 0022 URL http www icom net au Icom New Zealand 146A Harris Road East Tamaki Auckland New Zealand Phone 09 274 4062 Fax 09 274 4708 Asia Icom Inc 6F No 68 Sec 1 Cheng Teh Road Taipei Taiwan R O C Phone 02 2559 1899 02 2559 1874 Icom Europe GmbH Communication Equipment Himmelgeister Str 100 D 40225 D sseldorf Germany Phone 0211 346047 Fax 0211 333639 URL http www icomeurope com Icom Spain S L Crta de Gracia a Manresa Km 14 750 08190 Sant Cugat del Valles Barcelona SPAIN Phone 93 590 26 70 Fax 93 589 04 46 URL http www icomspain com Icom UK Ltd Unit 9 Sea St Herne Bay Kent CT6 8LD U K Phone 01227 741741 Fax 01227 741742 URL http www icomuk co uk Icom France S a Zac de la Plaine Rue Brindejonc des Moulinais BP 5804 31505 Toulouse Cedex France Phone 561 36 0303 Fax 561 36 03 00 URL http www icom france com Count on us Icom Inc S 13702HZ CD 1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan C 2000 Icom Inc
37. k posi tion Connect an SSG to the antenna connector and set as Frequency 156 525 MHz Level 0 25 uV 119 dBm 1 kHz 3 0 kHz Modulation Deviation Receiving SQUELCH This output level of a standard signal generator 550 is indicated as SSG s open circuit MAIN a digital multi meter or oscil loscope to check point Connect a frequen cy counter to check point CP4 MAIN Connect a digital multi meter or oscil loscope to check point CP1 ADJUSTMENT MEASUREMENT VALUE POINT 2 1 MAIN L1 L2 L3 L4 At the point where the MAIN Turn R29 check point DS1 just turns OFF 134 825000 MHz Maximum voltage MAIN unit e C57 e mas es pe voltage NE ya Lj CP3 adjustment gt 2 CP4 OM Reference frequency _ check point CP1 14 Sensitivity el E o check point L3 e Sensitivity 9 Squelch check point adjustment 12 BP R29 J4 Squelch See External SP PRIE adjustment ese connector SECTION 5 PARTS LIST LOGIC UNIT ORDER L3 NN 1140008940 1130009680 1130007450 1110004710 1110004200 1130008850 1130008850 1130008860 1110003870 1110003870 1530002850 1520000460 1510000580 1590000420 1530002850 1720000360 1750000020 179000147
38. move except 1300 Hz and 2100 Hz signals The filtered signals are converted analog signals into digital signals at 4 and are then applied to the CPU after shaping wave form at IC6 3 3 2 DSC ENCODE CIRCUT MAIN UNIT The DSC signals from the D A outputs of CPU are amplified at the buffer amplifier 017 and converted into 600 impedance at T1 The signals are output to the connected transceiver as floating system output PLL circuit 21 25 MHz signal to the FM IF IC X2 LIF 3 4 NMEA AND DATA INTERFACE CIRCUITS 3 4 1 NMEA CIRCUIT MAIN UNIT The NMEA signals GGA from OPC 945 are applied IC5 and are shaped waveform at 6 and are then applied to the CPU 3 4 2 DATA INTERFACE CIRCUIT MAIN UNIT The control signals from the connected transceiver with 951 are applied to 8 and are shaped wave form IC6 and are then applied to the CPU 3 5 POWER SUPPLY CIRCUITS 3 5 1 VOLTAGE LINE MAIN UNIT LINE DESCRIPTION 13 8 V The voltage from the connected transceiver 8 V Common 8 V converted from the 13 8 V line and regulated by the 8 V regulator circuit IC9 5 Common 5 V converted from the 8 V line and regulated by the 5 V regulator circuit 1010 V R8V 8 V for receiver circuits regulated by the R8V regulator circuit Q15 Q16 Buffer ai to 1st mixer circuit Buffer 0001 15 ppATA 3 6 LOGIC CIRCU
39. rent drain at 13 8 V DC Antenna impedance Output impedance for testing Dimensions projections not included Weight RECEIVER Receive system Intermediate frequencies Sensitivity Adjacent channel selectivity Spurious response Intermodulation rejection ratio Hum and noise SPECIFICATIONS 156 525 MHz Ch 70 Rx only 16K0G2B 13 8 V DC negative ground 20 C to 60 C 1 0 A approx 50 nominal 100 nominal 165 W x110 H x78 D mm 1 kg approx Double conversion superheterodyne system dst 21 7 MHz 2nd 450 kHz 10 dBu typical at 12 dB SINAD 70 dB 70 dB 68 dB 40 dB Specifications are measured in accordance with EN301 025 All stated specifications are subject to change without notice or obligation SECTION 2 INSIDE VIEWS MAIN UNIT Speaker SP1 PS1740P02 FM IF IC IC1 TA31136FN DSC decoder IC4 NJM2211M Reference Oscillator X2 CR 659 21 25 MHz LOGIC UNIT LCD driver IC6 IC7 HD61202UFS IC8 HD61203UFS nm 1100110110 pesto 94201 10410 484409 e Wi 7777 i 4 31 i System clock X1 610 7 9872 MHz CPU IC1 MB9OF583BPFV G u epe eremo rte tose 2nd IF filter FI3 450 1st mixer Q2 3SK166
40. uperheterodyne system which converts receive signals twice improves the image rejection ratio and obtains stable receiver gain IF and demodulator circuits Squelch level adjustment pot Active filter FM detector 7 5 detector Limiter amp AF signal DEMOD 27 Joe The 1st IF signal from the IF amplifier is applied to the 2nd mixer section of the FM IF IC IC1 pin 16 and is mixed with the 2nd LO signal to be converted into a 450 kHz 2nd IF sig nal The FM IF IC contains the 2nd mixer limiter amplifier quad rature detector and active filter circuits A 2nd LO signal 21 25 MHz is produced at the PLL circuit using reference frequency The 2nd IF signal from the 2nd mixer IC1 pin 3 passes through ceramic filter FI3 to remove unwanted hetero dyned frequencies It is then amplified at the limiter amplifi er IC1 pin 5 and is applied to the quadrature detector IC1 pins 10 11 to demodulate the 2nd IF signal into AF signals 3 1 4 SQUELCH CIRCUIT MAIN UNIT A portion of the AF signals from the FM IF IC IC1 pin 9 is applied to the active filter section IC1 pin 8 where noise components are amplified and detected with an internal noise detector The squelch level adjustment pot R29 is connected to the active filter input pin 8 to control the input noise level The active filter section amplifies noise components The fil tered signals are rectified at the nois
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