Icom IC-M400BB Service Manual
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Icom IC-M400BB Service Manual

Icom IC-M400BB Service Manual

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July 2013
SERVICE MANUAL
ADDENDUM
CONTENTS
NEWLY ADDED PAGES:
ADJUSTMENT PROCEDURE . . . . . . . . . . . . . . . . . . 1
ADDITIONAL PAGES:
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
VOLTAGE DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . 12

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  • Page 1 July 2013 SERVICE MANUAL ADDENDUM CONTENTS NEWLY ADDED PAGES: ADJUSTMENT PROCEDURE ....1 ADDITIONAL PAGES: PARTS LIST ....... . 5 VOLTAGE DIAGRAM .
  • Page 2 (Additional page) July 2013 SECTION 5. ADJUSTMENT PROCEDURE 1 PREPARATION M REQUIRED EQUIPMENTS EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGE ADJ-M324 Adjustment software (Revision 1.0 or later) Cloning cable OPC-478UC Voltage : 12.0 V Power supply Current capacity : More than 10 A Measuring range : 0.1–30 W Range...
  • Page 3 (Additional page) July 2013 M ADJUSTMENT FREQUENCY FOR THE SQUELCH ADJUSTMENT Before starting the adjustments, use the cloning software to Clone the adjustment frequency. • CH116 : 163.425 MHz • WX10 : 163.275 MHz M ADJUSTMENT UTILITY...
  • Page 4 (Additional page) July 2013 2 FREQUENCY ADJUSTMENTS Select an adjustment item using [↑] / [↓], and then set to the specifi ed value using [←] / [→] on the connected PC’s keyboard. TRANSCEIVER’S ADJUSTMENT ADJUSTMENT OPERATION VALUE CONDITION ITEM PLL LOCK 1 •...
  • Page 5 (Additional page) July 2013 3 RECEIVE ADJUSTMENTS Select an adjustment item using [↑] / [↓], and then set to the specifi ed value using [←] / [→] on the connected PC’s keyboard. TRANSCEIVER’S ADJUSTMENT ADJUSTMENT OPERATION VALUE CONDITION ITEM SQUELCH 1 •...
  • Page 6 (Additional page) July 2013 SECTION 5. PARTS LIST [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 1150002470 IC RA33H1516M1-225 X401 6050013280 S.XTA CR-923 DSB321SCL 1110006670 S.IC NJM2730F-TE1-#ZZZB 73.9/48.1 41.883333 MHz 118.0/10.9 IC101 1130016080 S.IC GP214D <SEI> 65.9/16.0 X901 6060000880 S.CER CSTCE8M19G55 61.6/36.7 IC201...
  • Page 7 (Additional page) July 2013 [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 7030010040 S.RES ERJ2GEJ-JPW [USA] T 112.4/43.0 R414 7030005240 S.RES ERJ2GEJ 473 X (47K) 129.7/24.7 7030010430 S.RES ERJ2GEJ 120 X (12) [UK] R415 7030005530 S.RES ERJ2GEJ 100 X (10) 124.9/19.8 7030010430 S.RES ERJ2GEJ 120 X (12) [EUR]...
  • Page 8 (Additional page) July 2013 [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION R707 7030005050 S.RES ERJ2GEJ 103 X (10K) 81.0/12.5 C161 4030017460 S.CER C1005 JB 1H 102K-T 60.3/17.5 R708 7030004970 S.RES ERJ2GEJ 470 X (47) 86.4/14.1 C162 4030016930 S.CER C1005 JB 1A 104K-T 67.3/19.3 R711 7030008290 S.RES ERJ2GEJ 183 X (18K)
  • Page 9 (Additional page) July 2013 [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION C405 4030017760 S.CER C1005 JB 1H 222K-T 124.0/14.4 C714 4030017760 S.CER C1005 JB 1H 222K-T 83.7/3.0 C406 4030017410 S.CER C1005 CH 1H 240J-T 126.5/12.1 C715 4030017790 S.CER C1005 JB 1H 682K-T 81.0/3.0 C407 4030017560 S.CER C1005 CH 1H 2R5B-T...
  • Page 10 (Additional page) July 2013 [MAIN UNIT] [LOGIC UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 7030012290 JUM RDS2T0R0 1140016243 S.IC STM32F100ZET6B(FX3338A3) 79.0/30.0 8900014871 CAB OPC-1332A-1(P0.5N40L100) 1110006740 S.IC LMV358IPWR 37.0/36.0 8900020400 CAB OPC-2216 <TJM> 1130009981 S.IC TC7W53FK(TE85LF) 38.5/31.8 1180003570 S.REG NJM2830U1-33-TE1-#ZZZB 33.0/10.5 1130016110 S.IC TC7WH14FK(TE85LF) 54.6/13.3...
  • Page 11 (Additional page) July 2013 [LOGIC UNIT] [CONNECT UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 4030016930 S.CER C1005 JB 1A 104K-T 92.3/31.0 4030016790 S.CER C1005 JB 1E 103K-T 2.1/11.9 4030016930 S.CER C1005 JB 1A 104K-T 80.5/15.0 4030016930 S.CER C1005 JB 1A 104K-T 75.5/16.7 4030016930 S.CER C1005 JB 1A 104K-T 65.7/26.5...
  • Page 12 (Additional page) July 2013 [VCO UNIT] PARTS DESCRIPTION LOCATION 1590004070 S.TRA LDTC144EET1G <SLVJ> 13.4/9.3 1530002921 S.TRA 2SC4226-T1 Y25 (R25) 11.9/2.8 1530002921 S.TRA 2SC4226-T1 Y25 (R25) 18.6/2.3 1530003950 S.TRA KTC4080 Y-RTK/P 7.1/6.9 1530003950 S.TRA KTC4080 Y-RTK/P 4.9/2.6 1530003950 S.TRA KTC4080 Y-RTK/P 5.4/11.3 1590004050 S.TRA LDTA144EET1G <SLVJ>...
  • Page 13 (Additional page) July 2013 SECTION 10. VOLTAGE DIAGRAM • MAIN UNIT (1/2) IC901 1 COM RX:11.99V RX:11.99V 2 INH TX:11.64V 2SB1143 TX:11.64V 3 VEE Q501 C911 R559 R555 R550 4 GND NC_AFS TC7W53FK C912 R569 C531 R526 C913 NC_PDN_PTT R552 KTC811U NC_RESETB C535...
  • Page 14 (Additional page) July 2013 • MAIN UNIT (2/2) RX:12.00V TX:11.54V RX:5.02V KTA2015 TX:4.97V RX:0V RX:5.02V TX:4.84V TX:4.97V RX:4.99V TX:4.89V C113 CP15 0.001 0.68U RN752 35.0N 35.0N CP15S RX:2.41V to ANT TX:2.45V HVB350BYPTL CP16 41.0N RFLO CP15S RN142G 2SC4226 RX:0V PLLLO TX:3.94V 2SC4226 KTC4080...
  • Page 15 VHF MARINE TRANSCEIVER S-14915XZ-C1 January 2013...
  • Page 16 8. READ the instructions of the test equipment throughly before connecting it to the transceiver. Icom, Icom Inc. and the Icom logo are registered trademarks of Icom Incorporated (Japan) in Japan, the United States, the United Kingdom, Germany, France, Spain, Russia and/or other countries.

  • Page 17: Table Of Contents

    TABLE OF CONTENTS SECTION 1 SPECIFICATIONS SECTION 2 INSIDE VIEWS SECTION 3 DISASSEMBLY INSTRUCTION SECTION 4 CIRCUIT DESCRIPITON RECEIVER CIRCUITS ..................4-1 TRANSMIT CIRCUITS ..................4-3 FREQUENCY SYNTHESIZER CIRCUITS ............4-4 VOLTAGE BLOCK DIAGRAM ................4-4 PORT ALLOCATIONS ..................4-5 SECTION 5 PARTS LIST SECTION...

  • Page 18: Specifications

    SECTION 1. SPECIFICATIONS GENERAL • Frequency coverage European versions : Tx 156.000–161.450 MHz Rx 156.000–163.425 MHz USA versions : Tx 156.025–157.425 MHz Rx 156.050–163.275 MHz CH70 RX : 156.525 MHz • Intermediate frequencies MAIN : 1st 21.700 MHz, 2nd 450 kHz CH70 1st 30.875 MHz, 2nd 450 kHz •...

  • Page 19: Inside Views

    SECTION 2. INSIDE VIEWS • LOGIC UNIT DSC SIGNAL LINE SW (IC3) BEEP/DSC ENCODE SIGNAL BUFFER (IC2) DSC DECODER +3.3 V REGULATOR (IC11) (IC4) DATA LINE BUFFER (TXD) (IC6) RESET IC (IC10) NMEA LINE BUFFER (IC12) DATA LINE BUFFER (RXD) CI-V INTERFACE (IC7) (IC5)
  • Page 20 • MAIN UNIT (TOP VIEW) +5 V REGULATOR (IC512) AF POWER AMP (IC701) D/A CONVERTER (IC514) AF AMP (IC515) TX/RX AF LINE SW (IC901) TX/RX AF LINE SW (IC904) PLL IC AF LPF (IC101) (IC905) YGR AMP REFERENCE FREQUENCY (Q13) OSCILLATOR TX POWER AMP (X101)
  • Page 21 • MAIN UNIT (BOTTOM VIEW) AF PRE-AMP (IC702) +3 V REGULATOR (IC511) AF MUTE SW (IC703) AF MUTE SW (IC704) MIC AMP (IC513) AF MUTE SW (IC502) +1.1 V REGULATOR EXPANDER (IC903) (IC802) EXPANDER (IC801) NOISE CANCELING LSI (IC903) AF MUTE SW (IC503) AF BPF/MIC AMP (IC506)

  • Page 22: Disassembly Instruction

    SECTION 3. DISASSEMBLY INSTRUCTION 1. Removing the FRONT UNIT 2. Removing the MAIN UNIT 1) Remove 6 screws from the rear. 1) Remove 6 screws from the rear. 2) Disconnect the fl at cable and inline cable from the 2) Remove the case from the chassis. LOGIC UNIT.
  • Page 23 2. Removing the MAIN UNIT (Continued) 5) Remove 2 screws from the PA module. (Top view) PA module MAIN UNIT MAIN UNIT MAIN UNIT MAIN UNIT Chassis Screw x2 6) Remove 7 screws from the top of MAIN UNIT. 7) Unsolder 2 points at the antenna connector. 8) Remove the MAIN UNIT from the chassis.

  • Page 24: Circuit Descripiton

    SECTION 4. CIRCUIT DESCRIPTION 4-1 RECEIVE CIRCUITS RF CIRCUIT (MAIN UNIT) 1ST IF CIRCUIT FOR CH70 (MAIN UNIT) The RX signal from the antenna is passed through the LPF The RX signal from the RF circuits is applied to the 1st IF (L21, L22, and C114–C116), ANT SW (D16), attenuator (D19, mixer (Q302), and mixed with the 125.649 MHz 1st LO signal R96) and BPF (L201, C201 and C202), and then applied to...
  • Page 25 July 2013 RX AF CIRCUIT (MAIN UNIT) • When the AF signal is output to the external speaker The RX AF signal from the AF SW (IC904, pins 1, 7) is passed The demodulated AF signal from the AF SW (IC504B) through the AF MUTE SW (IC503A, pins 2, 1) and amplifi...

  • Page 26: Transmit Circuits

    4-2 TRANSMIT CIRCUITS TX AF CIRCUIT (MAIN UNIT) TX AMP CIRCUIT (MAIN UNIT) The AF signal from the COMMANDMICIV™ is passed The TX signal is amplifi ed by the YGR (Q13) and power AMP through the MIC mute SWs (IC502C, pins 9, 8 and IC502B, (IC1), and then passed through the LPF (L20, C111 and pins 4, 3), and then applied to the MIC AMP (IC513D).

  • Page 27: Frequency Synthesizer Circuits

    July 2013 4-3 FREQUENCY SYNTHESIZER • VCO (VCO UNIT) • PLL (MAIN UNIT) The VCO (Q3, Q4, and D1–D3) generates both 1st LO signal A portion of VCO output signal is passed through two buffers for MAIN channels and the TX signal. (VCO UNIT: Q5 and Q6), and then fed back to the PLL IC The output of buffer (Q7) is used as the TX or RX LO signal.

  • Page 28: Port Allocations

    4-5 PORT ALLOCATIONS • CPU (LOGIC UNIT: IC1) LINE DESCRIPTION NAME TEMPV Temperature sensing voltage. TDETV Transmit output power sensing voltage. LOINV Lock voltage input. WDECV Weather alert signal detect. DSCOUT DSC signal encoding output. BEEP Beep audio. (Square waves) NOISEV Noise level detect.

  • Page 29: Parts List

    SECTION 5. PARTS LIST [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 1150002470 IC RA33H1516M1-225 X401 6050013280 S.XTA CR-923 DSB321SCL 1110006670 S.IC NJM2730F-TE1-#ZZZB 73.9/48.1 41.883333 MHz 118.0/10.9 IC101 1130016080 S.IC GP214D <SEI> 65.9/16.0 X901 6060000880 S.CER CSTCE8M19G55 61.6/36.7 IC201 1110007320 S.IC NJM2591V-TE1-#ZZZB...
  • Page 30 [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 7030010040 S.RES ERJ2GEJ-JPW [USA] T 112.4/43.0 R414 7030005240 S.RES ERJ2GEJ 473 X (47K) 129.7/24.7 7030010430 S.RES ERJ2GEJ 120 X (12) [UK] R415 7030005530 S.RES ERJ2GEJ 100 X (10) 124.9/19.8 7030010430 S.RES ERJ2GEJ 120 X (12) [EUR] R416 7030004970 S.RES ERJ2GEJ 470 X (47)
  • Page 31 [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION R707 7030005050 S.RES ERJ2GEJ 103 X (10K) 81.0/12.5 C161 4030017460 S.CER C1005 JB 1H 102K-T 60.3/17.5 R708 7030004970 S.RES ERJ2GEJ 470 X (47) 86.4/14.1 C162 4030016930 S.CER C1005 JB 1A 104K-T 67.3/19.3 R711 7030008290 S.RES ERJ2GEJ 183 X (18K)
  • Page 32 [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION C405 4030017760 S.CER C1005 JB 1H 222K-T 124.0/14.4 C714 4030017760 S.CER C1005 JB 1H 222K-T 83.7/3.0 C406 4030017410 S.CER C1005 CH 1H 240J-T 126.5/12.1 C715 4030017790 S.CER C1005 JB 1H 682K-T 81.0/3.0 C407 4030017560 S.CER C1005 CH 1H 2R5B-T...
  • Page 33 [MAIN UNIT] [LOGIC UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 7030012290 JUM RDS2T0R0 1140016243 S.IC STM32F100ZET6B(FX3338A3) 79.0/30.0 8900014871 CAB OPC-1332A-1(P0.5N40L100) 1110006740 S.IC LMV358IPWR 37.0/36.0 8900020400 CAB OPC-2216 <TJM> 1130009981 S.IC TC7W53FK(TE85LF) 38.5/31.8 1180003570 S.REG NJM2830U1-33-TE1-#ZZZB 33.0/10.5 1130016110 S.IC TC7WH14FK(TE85LF) 54.6/13.3 EP401 6910016330 S.BEA MMZ1005S 601CT-S...
  • Page 34 [LOGIC UNIT] [CONNECT UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 4030016930 S.CER C1005 JB 1A 104K-T 92.3/31.0 4030016790 S.CER C1005 JB 1E 103K-T 2.1/11.9 4030016930 S.CER C1005 JB 1A 104K-T 80.5/15.0 4030016930 S.CER C1005 JB 1A 104K-T 75.5/16.7 4030016930 S.CER C1005 JB 1A 104K-T 65.7/26.5 6510022440 CON LTW-8MP-C NUTGASKET <LIA>...
  • Page 35 [VCO UNIT] PARTS DESCRIPTION LOCATION 1590004070 S.TRA LDTC144EET1G <SLVJ> 13.4/9.3 1530002921 S.TRA 2SC4226-T1 Y25 (R25) 11.9/2.8 1530002921 S.TRA 2SC4226-T1 Y25 (R25) 18.6/2.3 1530003950 S.TRA KTC4080 Y-RTK/P 7.1/6.9 1530003950 S.TRA KTC4080 Y-RTK/P 4.9/2.6 1530003950 S.TRA KTC4080 Y-RTK/P 5.4/11.3 1590004050 S.TRA LDTA144EET1G <SLVJ> 11.4/12.5 1750001700 S.DIO HSC277TRF-E...

  • Page 36: Mechanical Parts

    SECTION 6. MECHANICAL PARTS [CHASSIS PARTS] [ACCESSORIES] ORDER ORDER DESCRIPTION QTY. DESCRIPTION QTY. 6510004881 MR-DSE-01-1 <GA> MC11 (Optional) HM-195B [USA-01] (Optional) HM-195B [UK-01] 8900020381 OPC-2214A (Optional) HM-195B [EUR-01] 8900020390 OPC-2215 (Optional) HM-195B [HOL-01] (Optional) HM-195B [FRG-01] 8510020730 3514 CASE (Optional) HM-195SW [USA-02] 8930049040 INSULATION SHEET FQ...
  • Page 37 MP17(C)x6 MP16(C)x6 MP15(C)x7 MP18(C) MP10(C) CONNECT UNIT J1(CO) MP9(C) W1(C) MP4(C) MP3(C) MP1(C) MP14(C) J1(C) J1(C) MP6(C) MP1(V) MP2(M) MP5(C) MAIN UNIT MP13(C)x2 MP12(C) MP16(F)x4 MP7(C) Abbreviation: W2(C) MP11(C) (C): CHASSIS parts MP8(C) (L): LOGIC UNIT (M): MAIN UNIT (CO): CONNECT UNIT MP22(F) MP21(F) LOGIC UNIT...

  • Page 38: Board Layouts

    The combination of top side and bottom side of this SECTION 7. BOARD LAYOUTS • LOGIC UNIT (TOP VIEW) LEFT RIGHT DOWN MENU DIST CH16 • CONNECT UNIT (TOP VIEW) 7 - 1...
  • Page 39 The combination of top side and bottom side of this • LOGIC UNIT (BOTTOM VIEW) LEFT RIGHT IC11 DOWN R101 B7572E MENU C104 R103 EP11 C105 C112 R108 C108 C111 C166 C162 C165 DIST IC10 CH16 • CONNECT UNIT (BOTTOM VIEW) B7574C 7 - 2...
  • Page 40 The combination of top side and bottom side of this J1 (CHASSIS) • MAIN UNIT (TOP VIEW) D601 C115 C517 C113 C516 D504 D503 C503 C131 C501 C121 C502 B7571E C138 C508 C122 C132 R205 C203 C143 L201 C611 C136 C125 C512 D501...
  • Page 41 The combination of top side and bottom side of this • MAIN UNIT (BOTTOM VIEW) R504 R505 R503 R502 R501 R506 C605 IC511 C604 C602 C924 C914 L301 C620 C603 C302 C301 Q511 C913 • VCO UNIT C303 R906 R911 C911 L302 R912...

  • Page 42: General Wiring

    SECTION 8 GENERAL WIRING FRONT UNIT LOGIC UNIT TEMPV MICIN MICG LOINV TDETV NOISEV WXDEC UNLKI DSCDEC DSCENC BEEPO HORNO NC_BUSYO TXMSO T5VSO RVSO PLSTBO NMEAI+ NMEAI+ PONO SCKO NMEAI- NMEAI- NMEAO DASTBO SDATAO NMEAO IOSTBO RXSPMO ICF3 REXTMO COMTXD RINTMO COMRXD OPC-1332A-1...

  • Page 43: Block Diagram

    SECTION 9. BLOCK DIAGRAM JTBM450CX70 FI204:LTWC450E1 X201 CERAMIC WDECV IC201:NJM2591V FI202:FL-450 D19:HVD144A (#01,11,21) Q701:KTC4075 FI203:FL-451 MAIN UNIT NOISEV MAINDET 2ND IF XTAL IC202:LMV321DCK Q203:KTC4080 21.7MHz Q202: FI201: Q201:3SK294 D18:HSM88ASR IC504A: 3SK293 HDF160F CD4066BPWR NOISE 2ND LO MAIN-Lo Frequency range NOISE DSCDEC BUFF MAIN-RX:134.350-141.575MHz...

  • Page 44: Voltage Diagram

    SECTION 10. VOLTAGE DIAGRAM • LOGIC UNIT CP15S CP15S CP15S NJRST JTDI JTMS C155 CP15S JTCK JTDO 0.01 NRST TEMPV MIC-IN TRACECK MIC-G LOINV TRACED0 TDETV NOISEV TRACED1 WDECV UNLKI TRACED2 DSCDEC DSCENC TRACED3 NC_BUSY BEEPO HORNO NC_BUSYO TXMSO T5VSO RVSO PLSTBO PONO...
  • Page 45 • MAIN UNIT (1/2) IC901 1 COM RX:11.99V RX:11.99V 2 INH TX:11.64V 2SB1143 TX:11.64V 3 VEE Q501 C911 R559 R555 R550 4 GND NC_AFS TC7W53FK C912 R569 R526 C531 C913 NC_PDN_PTT R552 KTC811U NC_RESETB C535 R561 C536 C537 IC506 C914 0.22 8.2k 0.027...
  • Page 46 • MAIN UNIT (2/2) RX:12.00V TX:11.54V RX:5.02V KTA2015 TX:4.97V RX:0V RX:5.02V TX:4.84V TX:4.97V RX:4.99V TX:4.89V C113 CP15 0.68U RN752 0.001 35.0N 35.0N CP15S RX:2.41V TX:2.45V to ANT HVB350BYPTL CP16 41.0N RFLO CP15S HVD144A RX:0V 2SC4226 PLLLO KTC4080 TX:3.94V 2SC4226 C127 LDTC144EE LDTC144EE HVD144A...
  • Page 47 Highway 17 Delta, B.C., V4K 5B8, Canada : http://www.icomspain.com Phone : +1 (604) 952-4266 Fax : +1 (604) 952-0090 E-mail : icom@icomspain.com : http://www.icomcanada.com E-mail : info@icomcanada.com Blacksole House, Altira Park, Herne Bay, Kent CT6 6GZ, UK Phone : +44 (0) 1227 741741...
  • Page 48 S-14915XZ-C1 1-1-32, Kamiminami, Hirano-ku, Osaka 547-0003, Japan © 2013 Icom Inc.

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