Icom IC-M604A Service Manual

Icom IC-M604A Manual

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  • Icom IC-M604A | Service Manual - Page 1
    SERVICE MANUAL VHF MARINE TRANSCEVER iC-m604 S-14306MZ-C1 Aug. 2006
  • Icom IC-M604A | Service Manual - Page 2
    service manual describes the latest service information for the IC-M604 VHF MARINE TRANSCEIVER at the time of publication. MODEL IC-M604 instructions of test equipment thoroughly before connecting equipment to the transceiver. Icom, Icom Inc. and logo are registered trademarks of Icom
  • Icom IC-M604A | Service Manual - Page 3
    TABLE OF CONTENTS SECTION 1 SPECIFICATIONS SECTION 2 INSIDE VIEWS 2 - 1 IC-M604 2 - 1 2 - 2 HM-157 (Optional product 2 - 2 SECTION 3 DISASSEMBLY INSTRUCTION SECTION 4 CIRCUIT DESCRIPTION 4 - 1 RECEIVER CIRCUITS 4 - 1 4 - 2 TRANSMITTER CIRCUITS 4 - 3 4 - 3 PLL CIRCUITS 4 - 4 4 - 4 DSC CIRCUITS
  • Icom IC-M604A | Service Manual - Page 4
    SECTION 1 SPECIFICATIONS ¤ GENERAL • Frequency coverage • Mode • Power supply voltage • Operating temperature range • Current drain (at 13.8 V DC) • Antenna impedance • Dimensions (projections not included) • Weight : 156.025-157.425 MHz (TX) 156.050-163.275 MHz (RX) : 16K0G3E (FM) / 16K0G2B (DSC
  • Icom IC-M604A | Service Manual - Page 5
    ¤ VHF MARINE CHANNEL LIST Channel number Frequency (MHz) USA INT CAN Transmit Receive 01 01 156.050 160.650 01A 156.050 156.050 02 02 156.
  • Icom IC-M604A | Service Manual - Page 6
    SECTION 2 2-1 IC-M604 • MAIN UNIT INSIDE VIEWS RF amplifier (Q1: 3SK294) 1st mixer circuit D11: HSB88WS L18: 617DB-1919=P3 L19: 617DB-1327=P3 TX/RX switch circuit (D42, D43*: MA77) RX VCO circuit Q12: PMBFJ310 D32, D33: HVC358B 2nd mixer (IC1: TA31136FNG) PLL IC (IC12: µPD3140GS) Reference
  • Icom IC-M604A | Service Manual - Page 7
    BOTTOM VIEW CPU (IC1: MPD789405AGK-A30-9EU) Data buffer circuit Reset IC (IC7: S-80928CNMC) 5V regulator (IC5: TA78L05F) MIC amplifier (IC4: NJM2125F) System clock (X1: CSTCC4.91MG) Dimmer circuit 8V regulator (IC6: TA7808F) Volume IC (IC3: M62429FP) AF/MIC switch (IC9: TC4W53FU) AF amplifier (IC2
  • Icom IC-M604A | Service Manual - Page 8
    SECTION 3 DISASSEMBLY AND OPTIONS INSTRUCTIONS 1. Opening the transceiver case 1 Unscrew 6 screws A, and remove the front unit. 2 Unscrew 6 screws B, and remove the rear panel. FRONT UNIT REAR panel A B A AB A B B A B 2. Removing the LOGIC UNIT 1 Disconnect
  • Icom IC-M604A | Service Manual - Page 9
    SECTION 4 CIRCUIT DESCRIPTION 4-1 RECEIVER CIRCUITS 4-1-1 ANTENNA SWITCHING CIRCUIT (MAIN UNIT) The antenna switching circuit functions as a low-pass filter while receiving and as resonator circuit while transmitting. The circuit does not allow transmit signals to enter the receiver circuits.
  • Icom IC-M604A | Service Manual - Page 10
    from the 2nd IF amplifier (Q10) is applied to the 2nd mixer section of FM IF IC (IC6, pin 16), and is mixed with a 21.25 MHz 2nd LO signal, which signal from the 2nd IF amplifier (Q2) is applied to the 2nd mixer section of FM IF IC (IC1, pin 16), and is mixed with a 30.6 MHz 2nd LO signal, which is
  • Icom IC-M604A | Service Manual - Page 11
    AF circuit includes an AF mute circuit for the squelch. AF signals from the FM IF ICs (channel 70; IC6, pin 9, other channels IC1, pin 9) are passed through the switches the AF mute switch. A portion of the AF signals from the FM IF IC (IC1, pin 9) is passed through C89, and is applied to the D/A
  • Icom IC-M604A | Service Manual - Page 12
    at the TX-VCO/CHANNEL 70-VCO (Q18, D37, D39, D40) enters the PLL IC (IC12, pin 2) and is divided at the programmable divider section and is then applied The generated signal at the RX-VCO (Q12, D32, D33) enters the PLL IC (IC2, pin 19) and is divided at the programmable divider section and is then
  • Icom IC-M604A | Service Manual - Page 13
    , which oscillates 9.8304 MHz system clock for the main CPU (IC1). • RESET CIRCUIT IC2 is a reset IC, which outputs a reset signal ("LOW" pulse) to main CPU (IC1, pin 79) when turning transceiver power ON. • PLL CIRCUIT VCO Loop filter Q18, D37, D39, D40 Buffer Q19 Buffer Q27 Buffer Q15
  • Icom IC-M604A | Service Manual - Page 14
    from the 8V line at the +5 regulator circuit (AF unit; IC2). The output voltage is applied to the buffer amplifiers (AF unit; IC19, Q14), expander ICs (AF unit; IC17, IC18), etc. Transmit 8 V controlled by the T8 control circuit (MAIN unit; Q35, Q36) using the "SEND" signal from main CPU. The output
  • Icom IC-M604A | Service Manual - Page 15
    64 DATAH1M from the microphone (HM-162/1) to the transceiver. 66 DATANM I/O port for the GGA signals 69 DATAMN I/O port for the NMEA data. 70 PDATA Outputs a data signal to the PLL IC (MAIN unit; IC12, pin 5). Outputs a clock signal to the PLL IC 71 PCK (MAIN unit; IC12, pin 4). Outputs the
  • Icom IC-M604A | Service Manual - Page 16
    SECTION 5 ADJUSTMENT PROCEDURES 5-1 PREPARATION ¤ REQUIRED TEST EQUIPMENT EQUIPMENT GRADE AND RANGE EQUIPMENT DC power supply External speaker Output voltage Current capacity Input impedance Capacity : 13.8 V DC : 10 A or more : 4 Ω : 5 W or more Standard signal generator (SSG) DC voltmeter
  • Icom IC-M604A | Service Manual - Page 17
    5-2 PLL ADJUSTMENTS ADJUSTMENT ADJUSTMENT CONDITION LOCK VOLTAGE 1 • Operating channel : ch P2 • Receiving 2 • Operating channel : ch P2 • Output power : Low • Transmitting 3 • Operating channel : ch 70 • Receiving MEASUREMENT UNIT LOCATION MAIN Connect a digital multi-meter or
  • Icom IC-M604A | Service Manual - Page 18
    5-3 RECEIVER ADJUSTMENTS ADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT UNIT LOCATION VALUE ADJUSTMENT POINT UNIT ADJUST SENSITIVITY 1 • Operating channel : ch 16 MAIN Connect a tracking Set the flat wave form MAIN L11 (Except chan- • Connect a tracking generator's generator's input to as
  • Icom IC-M604A | Service Manual - Page 19
    • MAIN UNIT TOP VIEW • MAIN UNIT TOP VIEW L31 L32 RX sensitivity adjustment L33 for channel 70 L34 L11 L12 L13 L14 L15 RX sensitivity adjustment for other channels J3 RX sensitivity check point 5 - 4
  • Icom IC-M604A | Service Manual - Page 20
    SECTION 6 PARTS LIST • IC-M604 [REPLACEMENT UNITS] ORDER NO. UNIT NAME COLOR 0325770121 U M604 #21 FRONT 0325770122 U M604 #22 FRONT (including LOGIC UNIT) (including LOGIC UNIT) BLACK GRAY [FRONT UNIT] REF NO. ORDER NO. W1 8900015550 CBL W2 7120000470 JMP W3 7120000470 JMP
  • Icom IC-M604A | Service Manual - Page 21
    1110002031 IC 1180000421 S.IC 1110003091 IC 1130007690 S.IC 1130007690 S.IC 1110003750 S.IC 1130007690 S.IC 1110003750 S.IC 1110003750 S.IC 1110005801 IC 1110004520 S.IC 1170000352 S.IC 1130011120 S.IC 1110002400 S.IC 1130007690 S.IC 1130007570 S.IC 1130007570 S.IC 1130007431 S.IC 1110002400 S.IC
  • Icom IC-M604A | Service Manual - Page 22
    [AF UNIT] REF NO. R53 R54 R55 R56 R57 R59 R60 R61 R62 R63 R64 R67 R68 R69 R71 R72 R73 R74 R75 R76 R79 R80 R81 R82 R83 R84 R85 R86 R87 R88 R89 R89 R90 R91 R92 R94 R95 R96 R97 R197 R198 R199 R201 R202 R203 R204 R205 R206 R207 R208 R209 R210 R211 R212 R213 R214 R215 R216 R217 R218 R219 R221 R222 R223
  • Icom IC-M604A | Service Manual - Page 23
    IC2 IC3 IC5 IC6 IC9 IC11 IC12 IC13 IC14 IC15 1110003491 S.IC 1120002830 S.IC 1110003780 S.IC 1130011120 S.IC 1110003491 S.IC 1110003650 S.IC 1130005641 S.IC 1130007611 S.IC 1150002082 IC 1110002400 S.IC 1190000350 S.IC DESCRIPTION TA31136FNG (D EL) NJM2125F-TE1 NJM2902V-TE1 BU4584BFV-E2 TA31136FNG
  • Icom IC-M604A | Service Manual - Page 24
    [MAIN UNIT] REF NO. L15 L18 L19 L20 L21 L22 L25 L26 L31 L32 L33 L34 L48 L49 L50 L51 L52 L55 L56 L57 L61 L62 L63 L64 L65 L66 L67 L68 L69 L70 L72 L73 L74 L75 L79 L81 L83 L84 L85 L86 L87 L88 L89 L90 L91 L92 ORDER NO. DESCRIPTION 6190001591 COL 6140002551 S.COL 6130002961 S.COL 6200001831 S.COL
  • Icom IC-M604A | Service Manual - Page 25
    [MAIN UNIT] REF NO. ORDER NO. DESCRIPTION R257 R258 R259 R260 R262 R263 R264 R265 R267 R268 R271 R272 R273 R274 R275 R276 R277 R278 R282 R283 R284 R285 R286 R287 R288 R290 R291 R292 R293 R295 R296 R297 R299 R302 R306 R308 R309 R310 R311 R312 R313 R314 R315 R316 R317 R318 R319 R320 R321 R322 R323
  • Icom IC-M604A | Service Manual - Page 26
    [MAIN UNIT] REF NO. C187 C190 C191 C192 C193 C194 C195 C196 C197 C199 C200 C201 C202 C204 C205 C206 C207 C208 C221 C222 C223 C224 C225 C227 C228 C229 C230 C231 C232 C233 C235 C236 C237 C239 C240 C241 C242 C243 C244 C245 C246 C247 C248 C249 C251 C252 C253 C254 C255 C256 C257 C258 C259 C260 C261 C262
  • Icom IC-M604A | Service Manual - Page 27
    [MAIN UNIT] REF NO. ORDER NO. J3 6510007020 CNR DESCRIPTION TMP-J01X-V6 W7 W12 7030010840 S.JMP MJP-0.2-T 7030010860 JMP MJP-0.6 EP2 6910013370 S.BEA BLM18BB221SN1D EP3 6910002161 CAS CASE-BM7H-LF M. H/V LOCATION T 72.7/50.9 [SQL UNIT] REF NO. ORDER NO. DESCRIPTION M. H/V LOCATION
  • Icom IC-M604A | Service Manual - Page 28
    ] REF NO. IC1 IC2 IC3 IC4 IC5 IC6 IC7 IC8 IC9 ORDER NO. 1140012070 S.IC 1110001810 S.IC 1110004490 S.IC 1120002830 S.IC 1180000420 S.IC 1180001250 S.IC 1110005730 S.IC 1130007420 S.IC 1130006220 S.IC DESCRIPTION µPD789405AGK-B12-9EU TA7368F (ER) M62429FP 700C NJM2125F-TE1 TA78L05F (TE12R) TA7808F
  • Icom IC-M604A | Service Manual - Page 29
    SECTION 7 MECHANICAL PARTS 7-1 IC-M604 [CHASSIS PARTS] REF. BT) Screw B0 3 × 8 NI-ZC3 (BT) 2438 screw 2438 screw 2438 screw 2438 screw Screw M3 × 10 ZK3 O-ring (AD) 2577 IC clip 2577 IC plate Insulation plate (FQ) 2438 cap Thermally sheet (AI)-1 Screw B0 3 × 8 NI-ZC3 (BT) 1 [BLACK] 1 [GRAY] 1 1
  • Icom IC-M604A | Service Manual - Page 30
    MP8 (C) IC13 (M) MP7 (C) MP2 (C) MP11 (C) MP4 (M) MP5 (M) MP10 (M) MAIN UNIT MP6 (M) MP3 (M) MP9 (M) MP1 (C) MP2 (M) MP6 (C) W5 (C) EP3 (M) MP1 (M) W4 (C) MP16 (C) MP23 (C) MP9 (C) W2 (C) MP15 (C) MP19 (C) J1 (C) J1 (CO) J2 (CO) J3 (CO) MP10 (C) MP13 (C) MP19 (C) MP14 (C) MP22
  • Icom IC-M604A | Service Manual - Page 31
    key 2352 PTT rubber 2352 PTT holder 2352 mic rubber 2352 rubber 2352 main seal 2352 hanger knob 2352 R-plate 2352 mic plate 2352 screw ICOM washer (Y) O-ring (AE) O-ring (AF) 2352 sheet (A) 2352 SP net Spring washer M4 SUS Screw PH BT 2 × 6 NI Screw PH M3 × 6 NI Screw M4 × 10
  • Icom IC-M604A | Service Manual - Page 32
    SECTION 8 SEMI-CONDUCTOR INFORMATION • TRANSSISTORS AND FET'S 2SA1576A T106 R (Symbol: FR) 2SA1577 T106 Q (Symbol: HQ) B C E B C E 2SC3775 3 TB (Symbol: OY3) B C E 2SC4081 T106 S (Symbol: BS) B C E 2SJ144 Y (Symbol: VY) S G D 2SK1069 4 TL (Symbol: FJ) S G D 2SB1132 T100 R (Symbol: BAR) B C
  • Icom IC-M604A | Service Manual - Page 33
    SECTION 9 BOARD LAYOUTS 9-1 VR UNIT (TOP VIEW) W1 3 GND VOL2 1 VOL1 to AF unit J6 9-2 SQL UNIT (TOP VIEW) W1 1 SQL5V SQLV 3 SQLG to LOGIC unit J7 9-3 DIAL UNIT (TOP VIEW) W1 5 GND DIAL4 to LOGIC unit J7 DIAL3 DIAL2 1 DIAL1 CVCC CVCC NC NMEAIN+ NMEAOUT+ RTADA1 AF/MIC1 RRXDA2 AF/MIC2 GND to AF unit
  • Icom IC-M604A | Service Manual - Page 34
    The combination of this page and the next page shows the unit layout in the same configuration as the actual P.C. Board. 9-5 LOGIC UNIT (TOP VIEW) V95 V90 1 2 3 V85 V80 V75 4 5 6 V70 V65 V60 V55 7 8 9 V50 V45 CE 0 ENT V40 V35 V30 V25 H/L CH/WX V20 MENU CLR F 16 V15
  • Icom IC-M604A | Service Manual - Page 35
    9-5 LOGIC UNIT (BOTTOM VIEW) 1 to MAIN unit J1 25 J1 GND TXDET GND GND H/L ATT1 PSTB PCK 8V GND RXADJ WXDET GND 27 J3 GND SEND DASTB TMUTE ATT2 UNLK PDATA GND S5V DEC2 DEC1 SQL TEMP 2 26 to LCD CS1B RESETB RS RW_WR E_RD DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 GND VDD VOUT C3+ C3C1+ C1C2+ C2V0 V1
  • Icom IC-M604A | Service Manual - Page 36
    The combination of this page and the next page shows the unit layout in the same configuration as the actual P.C. Board. 9-6 MAIN UNIT (TOP VIEW) CHASSIS J1 ANT to AF unit J5 to LOGIC unit J1 J1 25 GND SEND DADATA TMUTE ATT2 UNLK PDATA GND S5V DEC2 DEC1 SQL 1 TEMP GND 26 TXDET GND GND H/L
  • Icom IC-M604A | Service Manual - Page 37
    The combination of this page and the previous page shows the unit layout in the same configuration as the actual P.C. Board. • MAIN UNIT (BOTTOM VIEW) V60 V55 V50 V45 V40 V35 V30 V25 V20 V15 V10 V5 H160 H155 H150 H145 H140 H135 H130 H125 H120 H115 H110 H105 H100 H95 H90
  • Icom IC-M604A | Service Manual - Page 38
    The combination of this page and the next page shows the unit layout in the same configuration as the actual P.C. Board. 9-7 AF UNIT (TOP VIEW) to CHASSIS W1 (OPC-1175) to Optional unit UT-112 2 14 J3 to CONNECT unit J4 1 20 J4 CVCC CVCC NC NMEAIN+ NMEAOUT+ RTADA1 AF/MIC1 RRXDA2 AF/MIC2
  • Icom IC-M604A | Service Manual - Page 39
    The combination of this page and the previous page shows the unit layout in the same configuration as the actual P.C. Board. • AF UNIT (BOTTOM VIEW) J5 1 VCC VCC GND GND to MAIN unit 4 V50 V45 V40 V35 V30 V25 V20 V15 V10 V5 H160 H155 H150 H145 H140 H135 H130 H125 H120 H115
  • Icom IC-M604A | Service Manual - Page 40
    9-8 HM-126RB/RG (TOP VIEW) to Speaker J1 7 SP- SP+ MICE PTT MIC PTT GND 1 KEY to FRONT unit W1 The combination of this page and the next page shows the unit layout in the same configuration as the actual P.C. Board. 9-9 HM-157 (Optional product) (TOP VIEW) V50 V45 V40 V35 V30 V25
  • Icom IC-M604A | Service Manual - Page 41
    • HM-157 (Optional product) (BOTTOM VIEW) H/L TAG SCAN PWR V0 V5 V10 V15 V20 V25 V30 V35 V40 V45 V50 • HM-126RB-RG (BOTTOM VIEW) The combination of this page and the previous page shows the unit layout in the same configuration as the actual P.C. Board. H0 H10 H5 H10 H15 PTT
  • Icom IC-M604A | Service Manual - Page 42
    SECTION 10 BLOCK DIAGRAM HM-126R CHASSIS UNIT HM-126R FRONT UNIT SP1 DIAL UNIT S1 UP E DN ENCODER SQL UNIT S5V SQLV VR UNIT VOL1 VOL2 DS1 HLM7784-010100 IC6 TC74LCXR164245 LCD MODULE BUFF IC5 S-817B33AMC L5V 3.3V REG VCC Q15,16 KTC4075x2 Q17 KTA1664 DIM CONT DS8-19 SML311YTx12 DS2
  • Icom IC-M604A | Service Manual - Page 43
    SECTION 11 WIRING DIAGRAM W1 OPC-1175 HV GND 1 3 1 3 2 2 W2 OPC-1176 CHASSIS HAIL+ HAIL- J3 NMEAOUT+ 1 5 SP+ 6 NMEAOUT- 2 4 3 SPNMEAIN+ NMEAIN- J1 VCC1 AF/MIC1 MICG 1 7 2 8 6 3 5 4 ICF3 RRXDA1 RTXDA1 PTTC GND J6 KPWRH2 1 CMDPWR2 2 GND 3 GND 4 ICF3 5 CMDPWR1
  • Icom IC-M604A | Service Manual - Page 44
    SECTION 12 VOLTAGE DIAGRAMS 12-1 LOGIC UNIT C127 47P C124 47P C143 47P C125 47P C128 47P C126 47P S5V S5V R83 10K R82 10K R81 47K C120 47P C116 47P C114 47P C112 47P C110 47P C109 0.001 C119 47P C118 47P C117 47P C115 47P C113 47P C111 47P SQL CP8 CP06VR C107 47P C105 47P C103 0.001 C101 0.
  • Icom IC-M604A | Service Manual - Page 45
    12-2 MAIN UNIT CP12 CP10S R313 1 S5V C432 0.001 R309 1 WXDEC R306 1 C392 0.001 R302 NTCG16 TO LOGIC UNIT J1 GND WXDEC 2 RXADJ 4 GND 6 8V 8 PCK 10 PSTB 12 ATT1 14 H/L 16 GND GND 18 20 TXDET 22 GND 24 26 J1 26FLT-SM2-TB TEMP 1 SQL 3 DEC1 5 DEC2 7 S5V 9 GND
  • Icom IC-M604A | Service Manual - Page 46
    12-3 AF UNIT 54 J5 SB4P-HVQ-A 1 2 3 4 VCC VCC GND GND TO MAIN UNIT J6 B3B-ZR-SM4-TF 1 2 3 VOL1 VOL2 GND TO VR UNIT W1 OPC-1186 HV VCC PWRON 8V R8 S5V VCC AF C266 0.1 PCK PDATA EPSTB EP3 BLM11B221SB EP2 BLM11B221SB 1 2 3 STRU 4 AFSUB 5 INCMH 6 INCHM 7 8 STR V+ D OE CLK Q5 Q1 Q6
  • Icom IC-M604A | Service Manual - Page 47
    12-4 HM-126RB/RG PTT S1 UP R2 S2 6.8k DOWN R3 S3 15k 16/9 R4 S4 33k UP KEY : 2.0V DOWN KEY : 3.0V 16/9 KEY : 3.8V W1 (CHASSIS) J1 7 1 6 8 2 5 3 4 MC1 SP1 W1 C2 470p W2 W3 W4 C1 470p R1 12k R5 15 HANGER 12 - 4
  • Icom IC-M604A | Service Manual - Page 48
    0.1 R61 39k R60 10k R29 10k R31 10k R33 10k UP SQL VOL DOWN IC CHWX Q2 2SB1132 Q3 2SC4116 C10 R35 C12 0.1 1k 1 R37 22k R36 10k C11 100 CP14 CP18 J1 VCC AF/MIC MICG GND PTTC RTXDA RRXDA PWRC MC1 to IC-M604 CONNECT unit J1 R62 Q12 47k 2SC4116 R34 R64 1k 3.9k PWR PTT D2 DAN202U
  • Icom IC-M604A | Service Manual - Page 49
    ) 454-1509 URL : http://www.icomamerica.com E-mail : [email protected] Phone : +1 (425) 454-7619 Glenwood Centre #150- 2559 1899 Fax : +886 (02) 2559 1874 URL : http://www.asia-icom.com E-mail : [email protected] Sopot, 3 Maja 54 Poland Phone : +48 (58) 550 7135 Fax
  • Icom IC-M604A | Service Manual - Page 50
    1-1-32, Kamiminami, Hirano-ku, Osaka 547-0003, Japan S-14306MZ-C1 © 2006 Icom Inc.
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S-14306MZ-C1
Aug. 2006
SERVICE
MANUAL
VHF MARINE TRANSCEVER
iC-m604