Icom IC-7400 Service Manual
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Icom IC-7400 Service Manual

Hf/vhf all mode transceiver
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Enlarged version
HF/VHF
ALL MODE TRANSCEIVER
S-14610XZ-C1
Jul. 2009

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Summary of Contents for Icom IC-7400

  • Page 1 HF/VHF ALL MODE TRANSCEIVER S-14610XZ-C1 Jul. 2009...
  • Page 2 8. READ the instructions of test equipment throughly before connecting a test equipment 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 3: Table Of Contents

    TABLE OF CONTENTS SECTION SPECIFICATIONS SECTION INSIDE VIEWS SECTION DISASSEMBLY INSTRUCTION SECTION CIRCUIT DESCRIPITON RECEIVER CIRCUITS............4-1 TRANSMITTER CIRCUITS .

  • Page 4: Specifications

    SECTION 1. SPECIFICATIONS • General • Receiver • Receive system : Triple conversion • Frequency coverage (Unit: MHz) superheterodyne system Receive 0.030– 60.000000* • Intermediate frequencies: 144.000– 146.000000 64.455 MHz Transmit 1.800– 1.999999* 455 kHz 3.500– 3.999999* 36 kHz 7.000– 7.300000* •...
  • Page 5 SECTION 2. INSIDE VIEWS • MAIN AND RF UNITS * Located under side of the point 2 - 1...
  • Page 6 • PA AND CTRL UNITS 2 - 2...
  • Page 7 SECTION 3 DISASSEMBLY AND OPTION INSTALLATIONS • Opening the transceiver’s case Follow the case and cover opening procedures shown here when you want to install an optional unit or adjust the internal units, etc. CAUTION: DISCONNECT the DC power cable from the transceiver before performing any work on the transceiver.
  • Page 8 • CR-338 HIGH STABILITY CRYSTAL UNIT By installing the CR-338, the total frequency stability of the transceiver will be improved. q Remove the bottom cover as shown on the previous page. Shield cover Earth spring w Remove the 4 screws from the shield cover of the RF unit, (CHASSIS) and disconnect P2 (CHASSIS) from J761 (MAIN unit), then lift up the shield cover.

  • Page 9: Receiver Circuits

    SECTION 4. CIRCUIT DESCRIPTION 4-1 RECEIVER CIRCUITS 4-1-1 RF SWITCHING CIRCUIT (CTRL, RF AND PA UNITS) 0.03–1.6 MHz L11, L12, R11–R13, C12–C14, C17 The RF switching circuit leads receive signals to bandpass 1.6–2 MHz L21–L23, C21–C25 filters from an antenna connector while receiving. However, 2–4 MHz L31–L33, C31–C35 the circuit leads the signal from the RF power amplifier to the...
  • Page 10 4-1-4 1ST MIXER AND 1ST IF CIRCUITS (RF UNIT) (Q204, Q205). The DC amplifiers function as an AGC circuit to reduce average noise. Therefore, the noise blanker func- The 1st mixer circuit mixes the received signals with the 1st tion shuts off pulse-type noise only. LO signal to convert the received signals into a fixed 64.455 MHz 1st IF signal.
  • Page 11 4-1-10 TWIN PBT CIRCUIT 4-1-13 AF AMPLIFIER CIRCUIT (MAIN UNIT) General PBT (Passband Tuning) circuit shifts the center fre- The AF amplifier amplifies the audio signals to a suitable dri- quency of IF signal to electronically narrow the passband ving level for the speaker. width.

  • Page 12: Transmitter Circuits

    4-2 TRANSMITTER CIRCUITS The modulated IF signal from the DSP IC is applied to the D/A converter section in the CODEC IC (IC501) to convert 4-2-1 MICROPHONE AMPLIFIER CIRCUIT into the analog IF signal. Also the signal is level-shifted 3.3 (MAIN UNIT) V to 5V at the level converter section in the IC (IC501).
  • Page 13 The operating (transmitting) frequency is produced at the 1st When the FOR or VFOR signal exceeds the POCV voltage, IF mixer circuit (RF unit; D271) by mixing the 1st IF and 1st ALC bias voltage from the comparator controls the IF ampli- LO signals.

  • Page 14: Pll Circuits

    4-2-9 TEMPERATURE PROTECTION CIRCUIT 4-3-2 1ST LO PLL CIRCUIT (RF UNIT) (MAIN AND RF UNITS) The 1st LO PLL contains a main and reference loop as a dual loop system. The cooling fan (CHASSIS; MF1) is activated while transmit- ting or when the temperature of the power amplifier exceeds The reference loop generates an approximate 10.8 MHz fre- the preset value.

  • Page 15: Antennatuner Circuits

    4-3-4 3RD LO CIRCUIT (RF UNIT) 4-4-2 DETECTOR CIRCUITS (CTRL UNIT) The DDS IC (IC1601) generates a 10-bit digital signal using (1) SWR detector the 32 MHz system clock. The digital signal is converted into Forward and reflected power are picked up by a current an analog wave signal at the D/A converter (R1601–R1620).

  • Page 16: Power Supplycircuits

    (1) CPU and EEPROM (CTRL unit) 4-5 POWER SUPPLY CIRCUITS The antenna tuner CPU (IC5) controls the tuning motors via 4-5-1 PA UNIT the motor driver circuit (Q211–Q218) and tuning relays di- Line Description rectly, and memorizes the best preset position in 100 kHz The voltage from an external power supply via steps.

  • Page 17: Section 5 Adjustment Procedures

    SECTION 5 ADJUSTMENT PROCEDURES 5-1 PREPARATION BEFORE SERVICING I REQUIRED TEST EQUIPMENT EQUIPMENT GREDE AND RANGE EQUIPMENT GREDE AND RENGE Output voltage : 13.8 V DC Frequency range : 300–3000 Hz DC power supply Audio generator Current capacity : 30 A or more Measuring range : 1–500 mV Measuring range...

  • Page 18: Pll Adjustments

    5-2 PLL ADJUSTMENTS ADJUSTMENT MEASUREMENT POINT ADJUSTMENT ADJUSTMENT CONDITION VALUE REFERENCE • Displayed freq. : Any Connect an RF volt- Maximum level L1903, FREQUENCY • Preset R1032 (RF unit) to the cen- meter to the check (0 dBm or more) L1904, ter position.
  • Page 19 R1032 Reference frequency adjustment P1901 Reference frequency check point CP1500 1st LO outoput level check point CP1601 L1904 Reference 3rd LO output level L1901 frequency check point L1902 adjustment L1903 C1268 VCO lock C1248 voltage C1228 adjustment C1208 CP1801 (LV2) VCO lock voltage check point C1303...

  • Page 20: Transmitter Adjustments

    5-3 TRANSMITTER ADJUSTMENTS ADJUSTMENT MEASUREMENT POINT ADJUSTMENT ADJUSTMENT CONDITION VALUE Measure the driving IDLING • Displayed freq. : 14.100000 MHz Connect an ammeter – current, and note it as CURRENT • Mode : USB between the power the "initial value." •...
  • Page 21 L251 R18, R109 C202 Idling current adjustment TX peak adjustment for HF/50 MHz bands final amplifier R204, R215 Idling current adjustment for 144 MHz band Idling current adjustment final amplifier for driver J151 TX peak check point L330 L271 TX peak adjustment L251 TX peak adjustment...
  • Page 22 TRANSMITTER ADJUSTMENTS—continued ADJUSTMENT MEASUREMENT POINT ADJUSTMENT ADJUSTMENT CONDITION VALUE UNIT LOCATION UNIT ADJUST HF BANDS • Displayed freq. : 14.10000 MHz Rear Connect 100 W MAIN R306 OUTPUT • Mode : RTTY panel power meter • [RF POWER] : Max. CW [ANT1] connector.
  • Page 23 R306 HF bands output power adjustment R311 L251 Residual AM 50 MHz band output power adjustment L252 adjustment R317 144 MHz band output power adjustment R320 AM carrier power adjustment SWR detector adjustment SWR detector check point CP1 (SETI) SWR detector pre-setting 5 - 7...

  • Page 24: Receiver Adjustments

    5-4 RECEIVER ADJUSTMENTS ADJUSTMENT MEASUREMENT POINT ADJUSTMENT ADJUSTMENT CONDITION VALUE RX PEAK • Displayed freq. : 14.100000 MHz Rear Connect an AC milli- Maximum audio output L242, • Mode : USB panel volt meter to [EXT level L241 • Set following selections, controls SP] connector with an 8 Ω...
  • Page 25 L201 L202 Noise blanker adjustment L241 L203 L242 R200 RX peak L252 adjustment L251 R1469 R218 Receiver total gain adjustment L215 RX peak pre-setting 5 - 9...

  • Page 26: Adjustmentmode

    5-5 ADJUSTMENT MODE ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATION ENTERING • Enter the adjustment mode: Push [F1 ( )] or [F2 ( )] to select D163E 0.70-0 ADJUSTMENT q Turn power OFF. each adjustment mode. 1.40-0 w Terminate the [REMOTE] jack MODE Once enterring adjustment mode, with a 3.5(d) mm mini-plug.
  • Page 27 ADJUSTMENT MODE—continued ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATION Push [F5 ( )] to set and to step ADJUSTMENT next. chk SET DRIVE HF/50M Push [F5 ( )] to set and to step next. chk SET Push [F5 ( )] to set and to step DRIVE 144M next.
  • Page 28 ADJUSTMENT MODE—continued ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATION • Connect an SSG to [ANT 144M] Push [[F5 ( )] to tune the “BPF- Tuned BPF-1 ADJUSTMENT connector and set as: 1”, and to step next. chk SET Frequency : 108.021500 MHz Level : 3.2 µV (–97 dBm) Modulation...

  • Page 29: Section 6 Parts List

    SECTION 6 PARTS LIST [FRONT UNIT] [S-LOGIC UNIT] ORDER ORDER DESCRIPTION DESCRIPTION 8900009271 CAB OPC-912A (P1,N22,L70) <TJM> IC101 1130013470 S.IC CD4071BNSR 8900015160 CAB OPC-916A (P1,N22,L120) <TJM> IC102 1130011130 S.IC BU4030BF-E2 8900009271 CAB OPC-912A (P1,N22,L70) <TJM> IC401 1110006250 S.IC NJM2360AM-TE1-#ZZZB 8900009271 CAB OPC-912A (P1,N22,L70) <TJM>...
  • Page 30 [S-LOGIC UNIT] [PHONE UNIT] ORDER ORDER DESCRIPTION DESCRIPTION C407 4030011600 S.CER C1608 JB 1E 104K-T 6200003950 S.COI HF50ACC 322513-T C408 4030011600 S.CER C1608 JB 1E 104K-T 6200003950 S.COI HF50ACC 322513-T C409 4510008540 S.ELE EEE1CA100SR C571 4510008560 S.ELE EEE1HAR47SR C572 4030011600 S.CER C1608 JB 1E 104K-T 7030006240 S.RES ERJ12YJ181U (180) C701 4030007130 S.CER C1608 CH 1H 101J-T...

  • Page 31: Mic Unit

    [MIC UNIT] [MODE UNIT] ORDER ORDER DESCRIPTION DESCRIPTION 6200003261 S.COI NLV32T-101J 6510019991 S.CON 52808-2271(2291) 6200003261 S.COI NLV32T-101J 6200003261 S.COI NLV32T-101J 6200003261 S.COI NLV32T-101J 4030006880 S.CER C1608 JB 1H 472K-T 4030006880 S.CER C1608 JB 1H 472K-T 4030006880 S.CER C1608 JB 1H 472K-T 4030006880 S.CER C1608 JB 1H 472K-T 4030006880 S.CER C1608 JB 1H 472K-T 4030006880 S.CER C1608 JB 1H 472K-T...
  • Page 32 [TEN-KEY UNIT] [PBT UNIT] ORDER ORDER DESCRIPTION DESCRIPTION 7030003540 S.RES ERJ3GEYJ 682 V (6.8K) 7030003560 S.RES ERJ3GEYJ 103 V (10K) 7030003540 S.RES ERJ3GEYJ 682 V (6.8K) 7030003560 S.RES ERJ3GEYJ 103 V (10K) 7030003540 S.RES ERJ3GEYJ 682 V (6.8K) 7030003560 S.RES ERJ3GEYJ 103 V (10K) 7030003480 S.RES ERJ3GEYJ 222 V (2.2K) 7030003560 S.RES ERJ3GEYJ 103 V (10K) 7030003480 S.RES ERJ3GEYJ 222 V (2.2K)

  • Page 33: Display Unit

    [RIT UNIT] [DISPLAY UNIT] ORDER ORDER DESCRIPTION DESCRIPTION 6510019971 S.CON 52808-1071 IC1001 1140010372 S.IC HD6433833SD95HV(SX-2494C-1) IC1002 1130007810 S.IC BU4051BCF-E2 IC1005 1110000960 S.IC NJM4558M-TE1-#FMZB 2250000340 ENC EVQ-VCJF0324B IC1006 1130009121 S.IC S1D15206F00A200 IC1007 1130014400 S.IC T6B66BFG(C) IC1008 1130014390 S.IC T6B65AFG(C) IC1009 1130014390 S.IC T6B65AFG(C) IC1013 1110000960 S.IC...
  • Page 34 [DISPLAY UNIT] [RF UNIT] ORDER ORDER DESCRIPTION DESCRIPTION R1131 7030003440 S.RES ERJ3GEYJ 102 V (1K) 8970023952 SX2494 1.5+0.8DB (3)RF R1132 7030003680 S.RES ERJ3GEYJ 104 V (100K) R1133 7030003440 S.RES ERJ3GEYJ 102 V (1K) R1134 7030003440 S.RES ERJ3GEYJ 102 V (1K) IC151 1110001890 S.IC UPC1678G-E2...
  • Page 35 [RF UNIT] [RF UNIT] ORDER ORDER DESCRIPTION DESCRIPTION D124 1790000620 S.DIO MA77(TX) 6200001471 S.COI NLV32T-R12J D136 1790000620 S.DIO MA77(TX) 6180002781 COI EL0606SKI-1R0J-PF D137 1790000620 S.DIO MA77(TX) 6200001471 S.COI NLV32T-R12J D151 1750000441 S.DIO 1SV263-TL-E 6200001831 S.COI NLV32T-100J D152 1790001261 S.DIO MA2S077G0L 6200008410 S.COI LQH31HNR21J03L D153...
  • Page 36 [RF UNIT] [RF UNIT] ORDER ORDER DESCRIPTION DESCRIPTION L1412 6200004590 S.COI MLF1608D R18K-T R246 7030003300 S.RES ERJ3GEYJ 680 V (68) L1521 6200002150 S.COI ELJNC 56NK-F R248 7030003280 S.RES ERJ3GEYJ 470 V (47) L1522 6200001940 S.COI ELJNC 27NK-F R249 7030003480 S.RES ERJ3GEYJ 222 V (2.2K) L1523 6200001760 S.COI ELJNC 22NK-F...
  • Page 37 [RF UNIT] [RF UNIT] ORDER ORDER DESCRIPTION DESCRIPTION R1007 7030003440 S.RES ERJ3GEYJ 102 V (1K) R1403 7030003340 S.RES ERJ3GEYJ 151 V (150) R1008 7030003440 S.RES ERJ3GEYJ 102 V (1K) R1404 7030003450 S.RES ERJ3GEYJ 122 V (1.2K) R1009 7030003440 S.RES ERJ3GEYJ 102 V (1K) R1405 7030003500 S.RES ERJ3GEYJ 332 V (3.3K) R1011...
  • Page 38 [RF UNIT] [RF UNIT] ORDER ORDER DESCRIPTION DESCRIPTION W306 7030008240 S.RES ERJ12Y0R00U C115 4030009920 S.CER C1608 CH 1H 050B-T W307 7030003860 S.RES ERJ3GE JPW V C116 4030009560 S.CER C1608 CH 1H R75B-T W502 7030003860 S.RES ERJ3GE JPW V C117 4030006980 S.CER C1608 CH 1H 070D-T W520 7030003860 S.RES ERJ3GE JPW V C118...
  • Page 39 [RF UNIT] [RF UNIT] ORDER ORDER DESCRIPTION DESCRIPTION C300 4030006860 S.CER C1608 JB 1H 102K-T C1117 4030011600 S.CER C1608 JB 1E 104K-T C301 4030007080 S.CER C1608 CH 1H 390J-T C1118 4030011600 S.CER C1608 JB 1E 104K-T C302 4030007170 S.CER C1608 CH 1H 221J-T C1119 4030006880 S.CER C1608 JB 1H 472K-T C303...
  • Page 40 [RF UNIT] [RF UNIT] ORDER ORDER DESCRIPTION DESCRIPTION C1565 4030006980 S.CER C1608 CH 1H 070D-T EP304 6910012350 S.BEA MMZ1608Y 102BT C1567 4030007060 S.CER C1608 CH 1H 270J-T EP305 6910012350 S.BEA MMZ1608Y 102BT C1581 4030006880 S.CER C1608 JB 1H 472K-T EP306 6910012350 S.BEA MMZ1608Y 102BT C1582...

  • Page 41: Main Unit

    [MAIN UNIT] [MAIN UNIT] ORDER ORDER DESCRIPTION DESCRIPTION IC200 1110003870 S.IC NJM2058M-TE1-#ZZZB D364 1790001241 S.DIO MA2S7280GL IC280 1130005641 S.IC TC4W53F(TE12L,F) D380 1790000620 S.DIO MA77(TX) IC281 1130003611 S.IC TC4SU69F(TE85R,F) D381 1790000620 S.DIO MA77(TX) IC282 1130003611 S.IC TC4SU69F(TE85R,F) D382 1790000620 S.DIO MA77(TX) IC300 1110003870 S.IC NJM2058M-TE1-#ZZZB...
  • Page 42 [MAIN UNIT] [MAIN UNIT] ORDER ORDER DESCRIPTION DESCRIPTION L793 6200003950 S.COI HF50ACC 322513-T R361 7030003680 S.RES ERJ3GEYJ 104 V (100K) L794 6200003950 S.COI HF50ACC 322513-T R363 7030003680 S.RES ERJ3GEYJ 104 V (100K) L795 6200003950 S.COI HF50ACC 322513-T R364 7030003560 S.RES ERJ3GEYJ 103 V (10K) L796 6200003950 S.COI HF50ACC 322513-T...
  • Page 43 [MAIN UNIT] [MAIN UNIT] ORDER ORDER DESCRIPTION DESCRIPTION R804 7030007190 S.RES ERJ12YJ220U (22) R1406 7030003640 S.RES ERJ3GEYJ 473 V (47K) R811 7030003520 S.RES ERJ3GEYJ 472 V (4.7K) R1407 7030003560 S.RES ERJ3GEYJ 103 V (10K) R812 7030003620 S.RES ERJ3GEYJ 333 V (33K) R1408 7030003560 S.RES ERJ3GEYJ 103 V (10K) R813...
  • Page 44 [MAIN UNIT] [MAIN UNIT] ORDER ORDER DESCRIPTION DESCRIPTION R1904 7030003440 S.RES ERJ3GEYJ 102 V (1K) C107 4030006880 S.CER C1608 JB 1H 472K-T R1905 7030003440 S.RES ERJ3GEYJ 102 V (1K) C108 4030007130 S.CER C1608 CH 1H 101J-T R1906 7030003440 S.RES ERJ3GEYJ 102 V (1K) C109 4030007130 S.CER C1608 CH 1H 101J-T R1907...
  • Page 45 [MAIN UNIT] [MAIN UNIT] ORDER ORDER DESCRIPTION DESCRIPTION C403 4510008540 S.ELE EEE1CA100SR C1244 4030011600 S.CER C1608 JB 1E 104K-T C404 4030011600 S.CER C1608 JB 1E 104K-T C1245 4030006880 S.CER C1608 JB 1H 472K-T C405 4030011600 S.CER C1608 JB 1E 104K-T C1246 4030007130 S.CER C1608 CH 1H 101J-T C406...
  • Page 46 [MAIN UNIT] [PA UNIT] ORDER ORDER DESCRIPTION DESCRIPTION C1840 4030006880 S.CER C1608 JB 1H 472K-T 8970022760 SX1876 J(1)/PA C1841 4030006880 S.CER C1608 JB 1H 472K-T 8970023991 SX2494 1.5D-1 (2)/PA C1842 4030006880 S.CER C1608 JB 1H 472K-T C1844 4030006880 S.CER C1608 JB 1H 472K-T C1845 4030006880 S.CER C1608 JB 1H 472K-T 1180000421 S.IC...
  • Page 47 [PA UNIT] [PA UNIT] ORDER ORDER DESCRIPTION DESCRIPTION 7030003520 S.RES ERJ3GEYJ 472 V (4.7K) 4030006880 S.CER C1608 JB 1H 472K-T 7030003360 S.RES ERJ3GEYJ 221 V (220) 4030011600 S.CER C1608 JB 1E 104K-T 7030006060 S.RES ERJ12YJ100U (10) 4030006860 S.CER C1608 JB 1H 102K-T 7030003400 S.RES ERJ3GEYJ 471 V (470) 4030011600 S.CER C1608 JB 1E 104K-T 7030003390 S.RES ERJ3GEYJ 391 V (390)
  • Page 48 [PA UNIT] [PA UNIT] ORDER ORDER DESCRIPTION DESCRIPTION C249 4030012620 S.CER GRM55R2C2H102JV01L(GRM44-1) C627 4030006880 S.CER C1608 JB 1H 472K-T C401 4030007090 S.CER C1608 CH 1H 470J-T C402 4030007090 S.CER C1608 CH 1H 470J-T C403 4030007090 S.CER C1608 CH 1H 470J-T 6330001550 REL JV-12-KT C404...
  • Page 49 [TUNER UNIT] [TUNER UNIT] ORDER ORDER DESCRIPTION DESCRIPTION 8970022710 SX1876 1.5D (2)/TU 4030006880 S.CER C1608 JB 1H 472K-T 4030006880 S.CER C1608 JB 1H 472K-T 4030006880 S.CER C1608 JB 1H 472K-T 1590000680 S.TRA DTC114EUA T106 4030006880 S.CER C1608 JB 1H 472K-T 1590000680 S.TRA DTC114EUA T106 4030006880 S.CER C1608 JB 1H 472K-T...
  • Page 50 [CTRL UNIT] [CTRL UNIT] ORDER ORDER DESCRIPTION DESCRIPTION 8600036850 SX2494 P03*J13CT 7030003720 S.RES ERJ3GEYJ 224 V (220K) 8970023961 SX2494 1.5DA (1)/CT 7030003800 S.RES ERJ3GEYJ 105 V (1M) 7030003790 S.RES ERJ3GEYJ 824 V (820K) 7030003440 S.RES ERJ3GEYJ 102 V (1K) 1110000960 S.IC NJM4558M-TE1-#FMZB 7030003440 S.RES ERJ3GEYJ 102 V (1K) 1120002252 S.IC...
  • Page 51 [CTRL UNIT] [CTRL UNIT] ORDER ORDER DESCRIPTION DESCRIPTION R156 7030000400 S.RES MCR10EZHJ 1.5K (152) 4510008550 S.ELE EEE1HA010SR R157 7030003560 S.RES ERJ3GEYJ 103 V (10K) 4510008500 S.ELE EEE1CA101WP R158 7030003560 S.RES ERJ3GEYJ 103 V (10K) 4030007010 S.CER C1608 CH 1H 100D-T R159 7030003520 S.RES ERJ3GEYJ 472 V (4.7K) C100...
  • Page 52 [FILTER UNIT] [DRV UNIT] ORDER ORDER DESCRIPTION DESCRIPTION 6140003440 COI LR-386 (FK-100E-5003H) 1560001030 S.FET 2SK2975 (MTS103) 6140003440 COI LR-386 (FK-100E-5003H) 1560001030 S.FET 2SK2975 (MTS103) 4030004740 S.CER C2012 JB 1H 472K-T 7030000020 S.RES MCR10EZHJ 1 (010) 4030008960 S.CER C2012 JB 1C 104K-T 7030000020 S.RES MCR10EZHJ 1 (010) 4030004740 S.CER C2012 JB 1H 472K-T 7030000020 S.RES MCR10EZHJ 1 (010)
  • Page 53 SECTION 7. MECHANICAL PARTS [FRONT UNIT] [PHONE BOARD] ORDER ORDER DESCRIPTION QTY. DESCRIPTION QTY. 6450001891 HLJ2305-0130909 8900009271 OPC-912A 6450001791 HLJ7000-016010 (HONTAINOMI) 8900015160 OPC-916A 6510019971 52808-1071 8900009271 OPC-912A 8900009271 OPC-912A 8900009231 OPC-908A 8900009660 OPC-964 [MIC BOARD] 8900009231 OPC-908A 8900009231 OPC-908A ORDER DESCRIPTION QTY.
  • Page 54 [CHASSIS PARTS] [CHASSIS PARTS] ORDER ORDER DESCRIPTION QTY. DESCRIPTION QTY. 6510001920 1490R MP60 8930007840 THERMAL SHEET (K) 6510000370 MR-DS MP63 8930047220 SPONGE (FT) 6510000370 MR-DS MP64 8850001710 SEALING WASHER (R) 6510000370 MR-DS MP65 8930047100 2072 SP SPONGE MP66 8930047090 SPONGE (FP) 5610000360 LLR-06V (Incl.
  • Page 55 MP13 (C)×12 S-LOGIC UNIT MP26 (F)×5 R1 (LO) DISPLAY BOARD MP3 (LO) R4 (LO) MP2 (C) MP27 (F) MP3 (D) MP2 (D) PHONE BOARD MP4 (LO) MP1 (D) J1 (PH) MP1 (LO) J2 (PH) MP5 (LO) MIC BOARD MP2 (LO) J1 (MI) DS1002 (D) EP2 (F)
  • Page 56 MP2 (CT) EP2 (M) MAIN and RF units MP21 (C) ×11 (Top view) MP66 (C) MAIN UNIT MP19 (C) J700 (M) CTRL UNIT MP1802 (RF) MP1 (CT) MP1102 (RF) MP1101 (RF) MP1801 (RF) MP1302 (RF) MP4 (C) MP1602 (RF) MP67 (C) MP1303 (RF) MP42 (C) ×4 J740 (M)

  • Page 57: Rf Unit

    [RF UNIT] [MAIN UNIT] ORDER ORDER DESCRIPTION QTY. DESCRIPTION QTY. 6330001320 AHY103 RL740* 6330001320 AHY103 RL781* 6330000540 OMR-109F 6510007020 TMP-J01X-V6 CP200* 6910009670 HK3-S-T 6510022591 22FMN-BMTTR-A-TBT (LF) (SN) J121* 6510007020 TMP-J01X-V6 CP300* 6910009670 HK3-S-T CP1460* 6910009670 HK3-S-T J151* 6510007020 TMP-J01X-V6 J261 6510007900 TBP-P01X-A1 J100* 6510022591 22FMN-BMTTR-A-TBT (LF) (SN)
  • Page 58 [PA UNIT] [CTRL UNIT] ORDER ORDER DESCRIPTION QTY. DESCRIPTION QTY. 8930047110 RUBBER SHEET (AP) RL1* 6330001460 FTR-F1 CA012V 8930047120 RUBBER SHEET (AQ) RL2* 6330001460 FTR-F1 CA012V 8930001180 EARTH PLATE (FX-22) RL3* 6330001460 FTR-F1 CA012V 8860001450 2178 RUG RL4* 6330000470 AE5343 (NR-HD 12V) MP201 8860001450 2178 RUG 6510007020 TMP-J01X-V6...
  • Page 59 SECTION 8. SEMI-CONDUCTOR INFORMATION • TRANSISTORS AND FET’S • DIODES 2SA1576A T106 R 2SB1201 S 2SC1971 2SC2694 2SC3647 S TD (Symbol: FR) (Symbol: B1201) (Symbol: None) (Symbol: None) (Symbol: CC) (Symbol: C3) (Symbol: S2) (Symbol: A4) (Symbol: FH) (Symbol: 09) 2SC4081 T107 R 2SC4116 GR 2SC4213 B...
  • Page 60 The combination of top side and bottom side of this page shows the actual confi guration of P.C. board. SECTION 9 BOARD LAYOUTS • S-LOGIC UNIT (TOP VIEW) POWER TUNER • PA UNIT (TOP VIEW) to FILTER NR NOTCH TRANSMIT unit EP5 J202 J201...
  • Page 61 The combination of top side and bottom side of this page shows the actual confi guration of P.C. board. • S-LOGIC UNIT (BOTTOM VIEW) J501 • PA UNIT PB1A PB1A to PBT MCHA J302 MCHB (BOTTOM VIEW) board J1 PB2A PB2B J303 PB2B...
  • Page 62 The combination of top side and bottom side of this page shows the actual confi guration of P.C. board. • DISPLAY BOARD (TOP VIEW) • DRV BOARD (TOP VIEW) DS1002 to PA unit J22 to PA unit J24 B5703C to PA unit J21 to PA unit J23 DS1001 to S-LOGIC...
  • Page 63 The combination of top side and bottom side of this page shows the actual confi guration of P.C. board. J505 J1001 to MODE to S-LOGIC board J1 board J301 • DISPLAY BOARD (BOTTOMVIEW) C531 R531 C532 R532 J503 • DRV BOARD C533 R533 C534...
  • Page 64 The combination of top side and bottom side of this page shows the actual confi guration of P.C. board. • MAIN UNIT (TOP VIEW) R703 C1247 R702 C1406 Q700 R1404 L2020 R700 C1243 C1261 C1404 C1401 C742 R1412 R1414 C1302 C2020 C1303 R1301...
  • Page 65 The combination of top side and bottom side of this page shows the actual confi guration of P.C. board. • MAIN UNIT (BOT VIEW) R1242 L701 L2061 R1407 L700 C703 R1305 L702 R1620 Q1260 L704 C1842 R1851 IC1001 R1850 C705 W1240 C1701 R1703...
  • Page 66 The combination of top side and bottom side of this page shows the actual confi guration of P.C. board. • FILTER BOARD to TUNER unit J5 (TOP VIEW) • CTRL UNIT to CHASSIS P1 to PA unit EP6 (TOP VIEW) PAFE PAFE TUIN...
  • Page 67 The combination of top side and bottom side of this page shows the actual confi guration of P.C. board. • CTRL UNIT • FILTER BOARD (BOTTOM VIEW) (BOTTOM VIEW) • PHONE BOARD (BOTTOM VIEW) • PBT BOARD (BOTTOM VIEW) • TUNER UNIT (BOTTOM VIEW) •...
  • Page 68 SECTION 10. BLOCK DIAGRAM • BLOCK DIAGRAM (1/2) IC1460 IC1460 FI272 FI271 Q250 D252 1SV308 BA15532F BA15532F CFWM455D CFWM455D 3SK131 D253 1SV308 IC280 TC4W53F DRIF NB GATE IC501 (20K BW) (20K BW) AK4528VF IC1120 IC1120 IC1120 FI381 Q330 TC7WHU04FU mPC4574G2 mPC4574G2 mPC4574G2 IC400...
  • Page 69 • BLOCK DIAGRAM (2/2) Q231 Q211/Q212 Q181/Q182 ANT2 ANT1 2SK2171 2SK1740 2SK2171 0.03- 1.6MHz Q241 D261 3SK131 HSB88WS CANT 1.6- 2.0MHz FI231B FI231A FL315 FL-315 PRE1 ATTC XTAL XTAL IC151 D15 HSM88AS CURRENT IC191 2.0- mPC1678G D23 HSM88AS mPC1658G 4.0MHz IC9 NJM203M TUNER BOARD 4.0-...

  • Page 70: Ctrl Unit

    SECTION 11. GENERAL WIRING 8900007160 OPC-700 P14V H14V H14V P14V PGND J121 P601 J601 PGND ANT1 ANT2 8900007170 FILTER OPC-701 BOARD RF UNIT 144MHz J151 PA UNIT CHASSIS P501 J502 CTIN CTIN J261 J1601 PAFE J1001 TUIN TUIN 8900009271 8900015500 P1601 8900009271 P261...
  • Page 71 SECTION 12 VOLTAGE DIAGRAM • FRONT UNIT (1/2) J502 CP304 DISPLAY BOARD CP303 CP305 CP1050 CP1051 J301 J1001 CP523 CP521 CP522 CP504 CP502 NR/NOTCH CP306 CP505 CP503 CP501 CP307 CP308 J501 [NOTCH] CP309 PB1A PB1A LMFD LMFD PB1B PB1B Q302 LFMD LFMD 2SB1201...
  • Page 72 • FRONT UNIT (2/2) DISPLAY BOARD C1007 0.1 IC1003 C1008 R1022 R1021 R1020 R1019 TC7W74F 4.7k 4.7k 4.7k 4.7k IC1004a TC7W32F R1123 W1020 R1122 FAI1 R1008 R1009 R1052 R1101 150k CNT1 R1102 R1103 R1104 R1013 IC1004b R1105 TC7W32F R1106 IC1005a FAI2 R1107 M5218AFP...
  • Page 73 • S-LOGIC UNIT CP603 CP604 CP605 FRONT UNIT MAIN DIAL J604 MAIN R104 DIAL MP3/MP4 R102 R103 IC101C CP521 CP523 MP3 SHIELD CASE(A) CP522 MP4 SHIELD CASE(A)FUTA(A)-1 R307 R101 C101 J502 L301 C307 R108 C306 R302 To RIT BOARD C302 R106 R107 IC101D...
  • Page 74 • MAIN UNIT (1/3) C111 Q202 Q206 R211 R217 Q208 Q201 EP101 EP102 Q200 Q203 R221 L202 IC200 L201 L203 Q205 Q204 L200 L280 TNV2 TNV2 TNV1 TNV1 RTXS R100 RSKY R103 SKYS DRIV DRIV L281 RDRS R101 DRES J250 W270 C264 RBST...
  • Page 75 • MAIN UNIT (2/3) R1424 R1425 14VA MICE MICE C1416 R1463 MIGV R1460 IC1460 R1411 R1468 MIGV ACCMOD C1413 ACCMOD C1417 IC1400 IC1401 L1401 C1400 R1402 C1464 IC1401 VCC2 C1407 R1407 IC1401 IC1460 C1412 IC1460 VCAOUT R1412 R1414 R1415 R1417 R1418 IC1401 V+ C1465...
  • Page 76 • MAIN UNIT (3/3) R1700 R1701 R1703 ISTA _ISTA ISTA Analog digital conversion line IKEY _IKEY IKEY Port related to FZTAT and,Reset controll circuit _FMTL R1902 FMTL FMTL _VOXL R1903 VOXL VOXL R1904 _AVXL AVXL AVXL R1905 _ASO0 ASO0 _ASO1 R1906 ASO1 _ASO2...
  • Page 77 • RF UNIT (1/2) C1503 CP1500 MP1501 MP1502 MP1101 MP1102 LO FILTER C1427 L1401 MP1201 MP1202 R1521 R1151 MP1401 MP1402 R1136 R1137 R1149 R1152 Q1521 EP1501 EP1502 R1153 R1154 MP1103 R1147 R1139 R1155 C1203 C1206 C1409 R1148 R1202 L1201 R1407 R1101 R1140 R1156...
  • Page 78 • RF UNIT (2/2) J121 R548 J262 R547 Q541 R262 R549 R541 R542 R543 R545 R546 C143 C121 C541 MP121 R544 C543 C542 MP122 C544 C546 C547 C548 R261 C144 D121 D122 C545 D546 MP282 R263 D542 D543 D541 D545 D544 D548 D547...
  • Page 79 • CTRL UNIT 100mH T14V Q211 C1 2p IC1b 13.6V from DTC114EU to TUNER CTIN 10µH PA unit NJM4558M unit MF1 220k J502 C3 20p Q212 13.6V DTC114EU T14V C2 47p Q213 13.6V DTC114EU to TUNER IC3b HSM88AS unit MF2 10µH TC74AC112F R3 10k...
  • Page 80 • TUNER UNIT TUNER UNIT MP28GA T14V NY-12W-K-IE to CTRL unit J10 T14V DA221 DTC114EU to CTRL NVHF MP28GA unit J11 RL10 RL12 RL14 NY-12W-K-IE NY-12W-K-IE NY-12W-K-IE DA221 DA221 DA221 DTC114EU DTC114EU DTC114EU to CTRL unit J8 HF50ACC322513-B RL11 RL13 RL15 NVHF NY-12W-K-IE...
  • Page 81 • PA UNIT (1/2) C224 C225 Q201 C226 C237 R211 L202 R209 CP104 R202 C247 C248 R210 C243 C208 C201 C205 CP210 CP212 C204 C206 CP209 C249 C231 C202 C230 L203 L206 C229 VPAO 14VS VPAO 14VS L208 Q202 C212 R212 R214 C211...
  • Page 82 • PA UNIT (2/2) o CTRL J1 To PA UNIT (1/2) TO RF J121 VPAO HPAO L531 L530 L529 P601 RL514 CP511 J502 RL513 C586 50MHz C583 C612 C585 L533 R601 C587 To 2MANT CP513 W601 D603 C577 C588 C623 L602 C578 C601...
  • Page 83 Phone : +81 (06) 6793 5302 F ax : +81 (06) 6793 0013 : http://ww w .icom.c o .jp/ w o r ld/ind e x.html <Co r po r ate Headqua r ters> Communication Equipment 2380 116th A v e n ue N.E., Bell e vu e , W A 98004, U . S .A.
  • Page 84 S-14610XZ-C1 1-1-32, Kamiminami, Hirano-ku, Osaka 547-0003, Japan © 2002–2009 Icom Inc.

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