Icom IC-7300 Service Manual
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Icom IC-7300 Service Manual

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HF/50 MHz TRANSCEIVER
S-15218XZ-C1
March 2016

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Summary of Contents for Icom IC-7300

  • Page 1 HF/50 MHz TRANSCEIVER S-15218XZ-C1 March 2016...
  • Page 2 8. READ the instructions of the test equipment thoroughly 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, Australia, New Zealand, and/or other countries.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS SECTION SPECIFICATIONS SECTION INSIDE VIEWS SECTION CIRCUIT DESCRIPTION PA UNIT ......................3-1 RF UNIT ......................3-2 MAIN UNIT ......................3-3 SECTION ADJUSTMENT PROCEDURE PREPARATION ....................4-1 RECEIVE ADJUSTMENTS ................4-2 TX IDLING CURRENT ADJUSTMENTS ............4-3 TX POWER ADJUSTMENTS ................4-4 TX AMPLIFIER ADJUSTMENTS ..............

  • Page 4: Specifications

    SECTION 1 SPECIFICATIONS M General • Frequency coverage (unit: MHz): Receiver 0.030000 ~ 74.800000* Transmitter 1.800000 ~ 01.999999* 3.500000 ~ 03.999999* 5.255000 ~ 05.405000* 7.000000 ~ 07.300000* 10.100000 ~ 10.150000* 14.000000 ~ 14.350000* 18.068000 ~ 18.168000* 21.000000 ~ 21.450000* 24.890000 ~ 24.990000* 28.000000 ~ 29.700000* 50.000000 ~ 54.000000* 70.000000 ~ 70.500000*...

  • Page 5: Antenna Tuner

    M Receiver • Receive system: Direct sampling superheterodyne • Intermediate frequency: 36 kHz • Sensitivity (Filter: SOFT): SSB/CW (at 10 dB S/N) 1.8 ~ 29.999999 MHz Less than –123 dBm (0.16 μV) (P.AMP1 ON) 50 MHz band Less than –125 dBm (0.13 μV) (P.AMP2 ON) 70 MHz band* Less than –123 dBm (0.16 μV)

  • Page 6: Inside Views

    ??????? ??????? (???) (???) SECTION 2 INSIDE VIEWS • MAIN UNIT D/A CONVERTER (IC991) USB HUB (IC621) DC AMP (IC791) USB HUB CLOCK (6 MHz) DATA LINE BUFFER (X621) (IC701) USB BRIDGE AF AMP (IC641) (IC721) ANALOG SW USB CODEC (IC691) (IC661) DC AMP...
  • Page 7 • RF UNIT RF AMP M VIEW) (Q101) YGR AMP (IC1031) ALC PIN DIODES (D1021 and D1041) 5 V REGULATOR (IC1061) PRE-AMP (Q1411) ALC AMP (IC1501) DC AMP (IC1502) 8-bit SHIFT REGISTER (IC1301) 8-bit SHIFT REGISTER (IC1302) 8-bit SHIFT REGISTER (IC1303) Q1091 to Q1095 ???????
  • Page 8 • PA UNIT 9 V REGULATOR DC AMP (IC221) (IC981) 8-bit SHIFT REGISTER (IC751) CURRENT MONITOR (IC211) TX POWER AMP TX POWER AMP (Q131) (Q132) RF AMP (Q101) DRIVE AMP PRE-DRIVE AMP (Q121) (Q111) ??????? ??????? (???) (???) ??????? (???)
  • Page 9 • TUNER UNIT COMPARATOR (IC1701) POWER DETECTOR 8-bit SHIFT REGISTER (D1201) (IC2821) 8-bit SHIFT REGISTER PHASE DETECTOR (IC2811) (D1311 and D1312) 8-bit SHIFT REGISTER (IC2831) DC AMP (IC1901) 10 dB ATTENUATOR 8-bit SHIFT REGISTER (IC2841) SWR DETECTOR (D1505) IMPEDANCE DETECTOR (D1701) TUNING CIRCUIT ???????

  • Page 10: Power Amplifier

    SECTION 3 CIRCUIT DESCRIPTION 3-1 PA UNIT The PA UNIT is composed of the transmit power amplifier, • POWER AMPLIFIER harmonic filters, and sensing circuits for the transmit power The transmit signal from the drive amplifier (Q121) is applied and SWR. to the push-pull power amplifier (Q131 and Q132) to be ampli- fied up to 100 watts (for the HF/50 MHz band) or 50 watts (for (1) RECEIVE SIGNAL PROCESSING...
  • Page 11 3-2 RF UNIT The RF UNIT is composed of the receive and transmit RF circuits. The received signals of 1.6 MHz and below are passed through only "LPF (A)." The received signals of 1.6 MHz and The received signal from the PA UNIT is passed to the MAIN above are passed through "HPF (A),"...
  • Page 12 PHASE 21.45-33.0 MHz D1201 IC1901 3-2 RF UNIT (continued) POWER BUFF (2) TRANSMIT SIGNAL PROCESSING 33.0-76 MHz The signal level is also adjusted by the ALC circuit (D1201 IC1701 The transmit signal from the MAIN UNIT is passed through and D1041), which is located at the input and output of YGR one of the BPFs in the filter circuit.
  • Page 13 3-3 MAIN UNIT The IC-7300 uses the Direct Conversion system, which di- In a traditional transceiver, the received signal level (gain) rectly converts the received signal into a digital signal by the was controlled by the DSP prior to the external AGC circuit.
  • Page 14 3-3 MAIN UNIT (continued) • FPGA • Demodulator and D/A converter FPGA (Field-Programmable Gate Array) is a device that can The 36 kHz IF signal is digitally demodulated and processed digitally confi gure the virtual circuit in the chip. by the DSP (IC901), whose design is based totally on that of the IC-7100.
  • Page 15 (2) TRANSMIT SIGNAL PROCESSING • MIC AMP and A/D converter • FPGA The audio signal from the [MIC] connector on the front panel The transmit IF signal is applied to the FPGA (IC1351). The is amplifi ed by the MIC amplifi er (IC1002), and then applied FPGA mathematically processes the signal to digitally obtain to the A/D converter (IC1001) to be converted into a digital the oscillation (TX LO) and mixing (Image rejection mixer), as...

  • Page 16: Preparation

    SECTION 4 ADJUSTMENT PROCEDURE 4-1 PREPARATION M REQUIRED EQUIPMENTS EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGE 50 Ω and 100 Ω/120 W Dummy Loads Impedance: Modified 3.5 mm (1/8 inch) monaural plug Shunt plug (See the illustration below.) Attenuator Attenuation: 50 dB/120 W Measuring range:...

  • Page 17: Receive Adjustments

    FRONT Preset TX/ID TUNER/REF 4-1 PREPARATION (continued) Sub adjustment menu [MIC] M ENTERING THE ADJUSTMENT MODE 1) Connect the shunt plug to [REMOTE] (See page 5-1). 2) While holding down the [MENU] and [FUNCTION] keys, turn ON the transceiver power. 3) The main adjustment menu appears.

  • Page 18: Tx Idling Current Adjustments

    4-3 TX IDLING CURRENT ADJUSTMENTS • Touch [TX/ID] on the main adjustment menu screen. NOTE: The transceiver automatically transmits when a TX adjustment item is selected. ADJUSTMENT ITEM TRANSCEIVER'S CONDITION OPERATION VALUE PREPARATION 1) Connect the power meter (or dummy load) –...

  • Page 19: Tx Power Adjustments

    4-4 TX POWER ADJUSTMENTS • Touch [TX/ID] on the main adjustment menu screen. NOTE: The transceiver automatically transmits when a TX adjustment item is selected. ADJUST ADJUSTMENT ITEM TRANSCEIVER'S CONDITION OPERATION VALUE POINT TX POWER & 1 • Display: “TX POWER SET” 1) Connect the AG with the millivoltmeter –...

  • Page 20: Tx Amplifier Adjustments

    4-4 TX POWER ADJUSTMENTS (continued) ADJUST ADJUSTMENT ITEM TRANSCEIVER'S CONDITION OPERATION VALUE POINT TX POWER & 18 • Display: "TX Total 70M Gain" – 25 W POWER METER SETTING • Transmit (automatic) (A beep sounds, and (70 MHz band) then another beeps sound 0.5 sec.

  • Page 21: Frequency Adjustments

    4-6 FREQUENCY ADJUSTMENTS • Touch [TUNER/REF] on the main adjustment menu screen. NOTE: The transceiver automatically transmits when a TX adjustment item is selected. ADJUSTMENT ITEM TRANSCEIVER'S CONDITION OPERATION VALUE PREPARATION 1) Connect the power meter to the antenna Touch [TUNER/REF]. connector.

  • Page 22: Parts List

    SECTION 5. PARTS LIST [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION IC125 1110008550 S.IC NJM2904CRB1-TE1-#HMZR 28.5/70.4 D407 1750001810 S.DIO L1SS400T1G <SLVJ> [#05] T 107.2/31.0 IC135 1110008550 S.IC NJM2904CRB1-TE1-#HMZR 34.3/73.7 1750001810 S.DIO L1SS400T1G <SLVJ> [#06] IC141 1130010550 S.IC SN74AHC595PWR 58.5/53.2 1750001810 S.DIO...
  • Page 23 [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 7030004980 S.RES ERJ2GEJ 101 X (100) T 22.8/121.3 R361 7030005240 S.RES ERJ2GEJ 473 X (47K) 96.6/12.3 7030004980 S.RES ERJ2GEJ 101 X (100) 35.0/78.4 R362 7030005720 S.RES ERJ2GEJ 563 X (56K) 92.7/10.0 7030004980 S.RES ERJ2GEJ 101 X (100) 34.4/80.0...
  • Page 24 [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION R730 7030005050 S.RES ERJ2GEJ 103 X (10K) T 92.9/163.7 R1018 7030005240 S.RES ERJ2GEJ 473 X (47K) T 76.4/136.2 R731 7030005530 S.RES ERJ2GEJ 100 X (10) T 96.2/155.8 R1019 7030008290 S.RES ERJ2GEJ 183 X (18K) T 74.4/136.2 R732 7030005530 S.RES ERJ2GEJ 100 X (10)
  • Page 25 [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 4030017400 S.CER C1005 CH 1H 220J-T T 25.8/123.1 C318 4030019990 S.CER C1005 JB 1C 104K-T 88.8/47.4 4030017460 S.CER C1005 JB 1H 102K-T T 25.4/122.2 C319 4030019990 S.CER C1005 JB 1C 104K-T 87.6/12.0 4030017460 S.CER C1005 JB 1H 102K-T T 25.0/121.3...
  • Page 26 [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION C693 4030017620 S.CER C1005 CH 1H 100C-T T 68.4/183.7 C976 4030019990 S.CER C1005 JB 1C 104K-T T 31.3/155.0 C695 4030019990 S.CER C1005 JB 1C 104K-T T 17.5/157.6 C977 4030019990 S.CER C1005 JB 1C 104K-T T 29.0/149.7 C701 4030019990 S.CER C1005 JB 1C 104K-T...
  • Page 27 [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION C1336 4030019990 S.CER C1005 JB 1C 104K-T T 77.5/127.5 EP46 6910019900 S.BEA MPZ1608S601AT 19.2/73.6 C1337 4030019560 S.CER GRM21BB31C106KE15L T 79.7/128.1 EP51 6910019100 S.BEA MPZ1608S101AT 12.7/35.7 C1338 4030017440 S.CER C1005 CH 1H 221J-T T 37.8/120.4 EP52 6910019900 S.BEA...
  • Page 28 [RF UNIT] [RF UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION IC1031 1110008080 S.IC BGA2866115 <RYO> 96.6/24.2 D1411 1790001622 S.DIO 1SV308L3F(T 49.8/68.1 IC1061 1180004430 S.REG XC6209F502MR-G 64.3/9.3 D1412 1790001622 S.DIO 1SV308L3F(T 34.6/80.8 IC1301 1130010550 S.IC SN74AHC595PWR 27.2/19.9 D1413 1790001622 S.DIO 1SV308L3F(T 50.4/82.8 IC1302 1130010550 S.IC...
  • Page 29 [RF UNIT] [RF UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION L1265 6200012690 S.COI 0.30-2.5-7TL 100N <COMO> R1173 7030005220 S.RES ERJ2GEJ 223 X (22K) 12.6/27.9 [#03] 71.3/58.5 R1181 7030005710 S.RES ERJ2GEJ 121 X (120) 42.4/40.9 6200012690 S.COI 0.30-2.5-7TL 100N <COMO> R1182 7030009160 S.RES ERJ2GEJ 181 X (180) 43.6/55.9 [#05]...
  • Page 30 [RF UNIT] [RF UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION C102 4030016790 S.CER C1005 JB 1E 103K-T T 106.2/13.0 C1215 4030007120 S.CER C1608 CH 1H 820J-T 91.0/46.5 C103 4030016790 S.CER C1005 JB 1E 103K-T T 103.9/13.0 C1217 4030007100 S.CER C1608 CH 1H 560J-T 90.7/53.8 C201 4030016790 S.CER C1005 JB 1E 103K-T...
  • Page 31 [RF UNIT] [PA UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION C1321 4030017460 S.CER C1005 JB 1H 102K-T 38.3/5.7 IC211 1110007950 S.IC INA199A2DCKR 98.6/90.2 C1322 4030017460 S.CER C1005 JB 1H 102K-T 37.8/16.4 IC221 1180002080 S.REG BA09FP-E2 T 105.4/72.7 C1323 4030017460 S.CER C1005 JB 1H 102K-T 37.3/5.7 IC751 1130010550 S.IC...
  • Page 32 [PA UNIT] [PA UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION R101 7030008280 S.RES ERJ2GEJ 271 X (270) T 12.1/159.9 C143 4030019990 S.CER C1005 JB 1C 104K-T T 78.4/132.0 R102 7030010090 S.RES ERJ2GEJ 180 X (18) T 15.0/159.9 C144 4030019990 S.CER C1005 JB 1C 104K-T T 79.4/132.0 R103 7030008280 S.RES ERJ2GEJ 271 X (270)
  • Page 33 [PA UNIT] [PA UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION C865 4030011080 S.CER GRM31M2C2H6R0DV01L EP302 6910019100 S.BEA MPZ1608S101AT 6.1/85.3 (GRM42-6) 63.8/34.2 EP303 6910021240 S.BEA MMZ1005A152ET 6.5/91.3 C866 4030020760 S.CER GRM31A5C2J270JW01D 63.8/25.3 EP305 6910021240 S.BEA MMZ1005A152ET 12.9/92.8 C868 4030020770 S.CER GRM31A5C2J330JW01D 63.8/29.5 EP306 6910021240 S.BEA...
  • Page 34 [TUNER UNIT] [TUNER UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION IC1701 1110008620 S.IC BA2903SFVM-TR 14.1/48.9 R1611 7030004990 S.RES ERJ2GEJ 221 X (220) 50.3/23.6 IC1901 1110008550 S.IC NJM2904CRB1-TE1-#HMZR 34.8/12.5 R1612 7030005050 S.RES ERJ2GEJ 103 X (10K) 48.2/24.1 IC2811 1130009670 S.IC BU2092FV-E2 22.5/22.6 R1613 7030005050 S.RES ERJ2GEJ 103 X (10K)
  • Page 35 [TUNER UNIT] [TUNER UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION C1813 4030017420 S.CER C1005 CH 1H 470J-T 20.5/1.7 C2523 4030019990 S.CER C1005 JB 1C 104K-T T 160.7/87.7 C1814 4030017420 S.CER C1005 CH 1H 470J-T 20.0/13.2 C2524 4030019990 S.CER C1005 JB 1C 104K-T T 160.7/88.7 C1815 4030017420 S.CER C1005 CH 1H 470J-T...

  • Page 36: Front Unit

    [FRONT UNIT] [DISPLAY UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 5030004050 LCD RFE430H-AZH-DNS-000 <TRIA> IC101 1190003620 S.IC TPS61161ADRVR 60.8/51.7 IC152 1130017190 S.IC UC6528XBNQ4GRC <GOS> B 100.0/48.7 IC501 1140017811 S.IC R5F104LCAFB (SX-3765C-1) B 120.0/58.7 0880001360 UNI EX-2500 SENSOR 1590004690 S.TRA LDTC143ZET1G <SLVJ> 6.5/68.0 1590004690 S.TRA LDTC143ZET1G <SLVJ>...
  • Page 37 [DISPLAY UNIT] [PBT UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION R617 7030007250 S.RES ERJ2GEJ 220 X (22) 83.3/62.5 6510029480 S.CON 06FH-SM1-TB(LF)(SN) 19.8/8.3 R618 7030007250 S.RES ERJ2GEJ 220 X (22) 84.5/62.5 R619 7030007250 S.RES ERJ2GEJ 220 X (22) 85.7/62.5 R620 7030007250 S.RES ERJ2GEJ 220 X (22) 86.9/62.5 2250000960 ENC TP90D96AE20-30.5F-3765...
  • Page 38 [VR UNIT] [RIT UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 7210002970 VAR RV-314(RK0972210 10KB/10KB) 6510029480 S.CON 06FH-SM1-TB(LF)(SN) 20.0/5.6 6510029480 S.CON 06FH-SM1-TB(LF)(SN) 19.8/9.3 2250001010 ENC TP90N00AE20-14.5F-3765A Eqv.= This component is equivalent to the REF No. component listed above, and M.=Mounted side (T: Mounted on the Top side, B: Mounted on the Bottom side) may be substituted on parts orders and repairs.
  • Page 39 [PHONE UNIT] [MIC UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION R401 7030003440 S.RES ERJ3GEYJ 102 V (1K) 18.5/8.4 4030006900 S.CER C1608 JB 1H 103K-T ATEX 10.3/17.4 R403 7030003320 S.RES ERJ3GEYJ 101 V (100) 13.1/12.9 4030006900 S.CER C1608 JB 1H 103K-T ATEX 22.8/14.8 R404 7030003320 S.RES ERJ3GEYJ 101 V (100)
  • Page 40 [SD UNIT] PARTS DESCRIPTION LOCATION 7030003360 S.RES ERJ3GEYJ 221 V (220) 35.1/11.5 7030003250 S.RES ERJ3GEYJ 270 V (27) 35.1/13.9 7030003250 S.RES ERJ3GEYJ 270 V (27) 35.1/15.1 7030003250 S.RES ERJ3GEYJ 270 V (27) 35.1/18.7 7030003250 S.RES ERJ3GEYJ 270 V (27) 35.1/19.9 7030003250 S.RES ERJ3GEYJ 270 V (27) 35.1/17.5 7030003250 S.RES ERJ3GEYJ 270 V (27)
  • Page 41 SECTION 6 MECHANICAL PARTS [MAIN PARTS] [CHASSIS PARTS] ORDER ORDER DESCRIPTION QTY. DESCRIPTION QTY. 6510028411 MR-DS-01-2 <GA> 6510022472 40FLT-SM2-TB (LF) (SN) (M) J21* 6510021722 30FLT-SM2-TB (LF) (SN) (M) 2510002000 057D0805 J45* 6510018961 B2B-PH-SM4-TB (LF) (SN) J51* 6510021722 30FLT-SM2-TB (LF) (SN) (M) J71* 6510022472 40FLT-SM2-TB (LF) (SN) (M) 2710001060 FD128025HB-N (2N7R1) <USE>...
  • Page 42 [TUNER UNIT] [DISPLAY UNIT] ORDER ORDER DESCRIPTION QTY. DESCRIPTION QTY. W2001* 8970024721 1.5DCOAXIAL140MM-1 C31/C31 J51* 6510022692 06FLT-SM2-TB (LF) (SN) (M) J61* 6510022692 06FLT-SM2-TB (LF) (SN) (M) J1001* 6510028210 SJ050010 (TMP-J01X-V6) J71* 6510022692 06FLT-SM2-TB (LF) (SN) (M) J1801* 6510021722 30FLT-SM2-TB (LF) (SN) (M) J101* 6510031070 AYF534035 J2001*...
  • Page 43 [ACCESSORIES] ORDER DESCRIPTION QTY. 5610000410 AP-319 5610000420 AP-338 (BK1) 5210001360 ATQ 25A [#02] 5210000841 ATC 30-1 [#03] 5210000841 ATC 30-1 [#05] 5210000841 ATC 30-1 [#06] 5210001360 ATQ 25A [#07] 5210001360 ATQ 25A [#08] 5210001360 ATQ 25A [#12] 5210000940 1205 (Optional) HM-219 8900022020 OPC-2361 [#02]...
  • Page 44 • GENERAL MP30(CHASSIS)×10 (8810009461) MP55(CHASSIS) (8930082231) MP60(CHASSIS) (8930037770) MP21(CHASSIS) MP2(CHASSIS) (8820000530) (8110010940) MP36(CHASSIS)×4 MP37(CHASSIS) (8810010580) MP23(CHASSIS) (8810009651) EP2(CHASSIS) (8850000430) (6910025930) MP22(CHASSIS) (8850000140) MP60(CHASSIS) MP34(CHASSIS) (8930037770) (8810008661) MP1(CHASSIS) MP54(CHASSIS) J1(CHASSIS) (8010023570) MP64(CHASSIS) (8930091820) (6510028411) (8930094510) MP30(CHASSIS)×4 MF1(CHASSIS) (8810009461) (2710001060) MP31(CHASSIS)×4 (8810009461) MP37(CHASSIS)×4 (8810009651) FRONT UNIT...
  • Page 45 • FRONT UNIT PBT UNIT S1(PBT) MP23(FRONT)×2 (2250000960) (8810008661) PHONE UNIT J1(PHONE) VR UNIT (6450001630) J1(MIC) R1(VR) (6510000191) (8830002221) MIC UNIT MP22(FRONT)×12 (8810008661) MP24(FRONT)×2 (8810008631) MP11(FRONT) MP21(FRONT)×5 (8010023630) (8810008661) J1(MIC) (6510000191) SD UNIT MP21(FRONT)×5 J1(MIC) (8810008661) (6510000191) RIT UNIT S1(RIT) (2250001010) MP53(FRONT) (8930094540)
  • Page 46 • CHASSIS MP25(CHASSIS)×7 (8810008661) MP5(CHASSIS) (8930093310) RF UNIT MP4(CHASSIS) (8930093300) SP1(CHASSIS) (2510002000) W15(CHASSIS) W16(CHASSIS) (8920001580) (8600037380) MP35(CHASSIS) MP58(CHASSIS)×4 W1(PA) MP26(CHASSIS)×8 (8810008661) (8850003650) (Refer to the parts list) (8810008661) MP63(CHASSIS) (8930084330) MP1(CHASSIS) (8010023570) MP51(CHASSIS) (8410002951) PA UNIT MP52(CHASSIS) (8930090910) MP63(CHASSIS) (8930084330) MAIN UNIT TUNER UNIT MP27(CHASSIS)×7...
  • Page 47 SECTION 7. BOARD LAYOUTS • DISPLAY UNIT B-8330C (TOP VIEW) POWER CLEAR SPLIT TRANSMIT M-DN M-UP MPAD TUNER NOTCH P.AMPATT VOX/BK-IN TX/RX AUTO TUNE LOCK/SPEECH MENU QUICK FUNCTION M.SCOPE EXIT • VR UNIT B-8332C • PBT UNIT B-8331C (TOP VIEW) •...
  • Page 48 • DISPALY UNIT B-8330C (BOTTOM VIEW) J301 DISPLAY R481 MIC BOARD B-8330C J451 MAIN UNIT EP454 C503 J601 EP452 C452 C502 C453 EP453 PBT BOARD J451 C501 EP451 J601 EP455 J401 EP602 R491 C102 D491 R492 R496 R461 R493 D401 RIT BOARD R101 J101...
  • Page 49 • TUNER UNIT B-8329B (TOP VIEW) RL2081 RL2091 RL2221 RL2051 RL2061 C2383 C2393 RL2071 C2524 C2384 C2394 C2523 C2353 C2363 C2373 RL1011 J1001 RL2211 RL2011 RL2021 RL2031 RL2041 C2381 C2391 R2521 C2521 C2354 C2364 C2374 C2313 C2323 C2333 C2343 C1013 C2513 C2351 C2361...
  • Page 50 • TUNER UNIT B-8329B (BOTTOM VIEW)
  • Page 51 • RF UNIT B-8306E (TOP VIEW) C1424 C1426 R1420 R1422 C1423 R1418 L1416 C1422 J201 L1417 L1415 R1423 R1416 R1417 C1425 L1419 R1432 C1431 D1412 D1091 L1418 MP1251 R1415 D1402 [KEY] C1091 C1417 L1413 L1412 L1402 R1402 C1418 L1270 J1431 R1092 R1262 L1414...
  • Page 52 • RF UNIT B-8306E (BOTTOM VIEW)
  • Page 53 • MAIN UNIT B-8327F (TOP VIEW)
  • Page 54 • MAIN UNIT B-8327F (BOTTOM VIEW)
  • Page 55 • PA UNIT B-8328B (TOP VIEW) MP301 (PA) MP29 (CHASSIS) MP29 (CHASSIS) MP28 (CHASSIS) MP302 (PA) MP29 (CHASSIS) MP29 (CHASSIS)
  • Page 56 • PA UNIT B-8328B (BOTTOM VIEW) 7-10...
  • Page 57 SECTION GENERAL WIRING [ALC] [SEND] [ELE-KEY] [TUNER] [DC] [REMOTE] [EXT-SP] [ANT] [ACC] [USB] J771 USB+ USB- 8900016990 8970024631 OPC-1741(1.5DCOAXIAL110MM) 1.5DCOAXIAL170MM-1 C31/C31 J961 J1001 TXRF J1001 J101 TXRF TXRF RXRF J1071 J801 RXRF RXRF 8970024412 1.5DCOAXIAL330MM-2(T)C31/C31 RF UNIT TUNER UNIT PA UNIT MAIN UNIT 8910000500 8910000220...
  • Page 58 FRONT UNIT DS1(LCD) J101 J601 J451 PWRK LRXD MUDL MUDL LTXD SQLS SQLS FRES MIC BOARD PSEND PSEND PSEND LCD_DE MICE MICE LCD_VS LCD_HS MICI MICI LCD_ON LCD_CLK LCD_B7 LCD_B6 LCD_B5 LCD_B4 LCD_B3 J401 To the MAIN UNIT LCD_G7 PHONE PHOE PHOE LCD_G6...
  • Page 59 SECTION BLOCK DIAGRAM [DC 13.8V] Q221 TJ50S06M3L 0.03-2.0 MHz SW11 SW11 REVERSE D202 CONNECT DF30SC4M PROTECT SW12 IC221 IC211 BA09FP J20012 INA199A2 EKEY 2.0-4.0 MHz SW11 SW11 ESTA PWRS CTRL [TUNER] Q222 Q341/Q342 RUM002N02 LDTC143/LDTA114 CTRL 4.0-7.3 MHz SW11 SW11 HF/50 MHz/70 MHz Q101 Q111...
  • Page 60 X901 DCCLK CR-1021 /DCCLK (12.288 MHz) FPX_AGC/FPX_DET/FPR_MOD/MCLK IC1331 /FPCAL/DFR_MOD/DFX_DET/DFX_AGC/CFG ISL5857IAZ /CAL/STAT/FPRES/DONE/SPDO/SPCK/RSSI DSPCK/DSPR/FRM/BCLK IC701 TC74VHC04 IC1221 IF-DSP Q851 LDTA114 SN74LVC1G04DCK IC1321 Q1234 LDTC143 Q852 LDTC143 XC6209F332MR Q1235 LDTA114 FPGA IC901 DACLK XTAL 124.033 MHz TMS320C6745 TCON/ESTA/EKEY TUNER START/KEY TO PA HSK0/HSK1/DRESD/FRWT DR_AF/DR_RSV/DX_REC/DX_FMT X301 IC1351...
  • Page 61 LDTC143ZE DS1107 CTRL SEC2462C LDTC143ZE CTRL PBT UNIT DS1(LCD) IC101 TPS61161ADRV VR UNIT PBAAK/PBABK/PBBAK/PBBBK/PCLEK VLED-/VLED+ BKLV LIGHT LIGHT CTRL [AF GAIN] R3-R7/G2-G7/B3-B7 RFL/AFL DE/VSYNC/HSYNC/CLK/DISP FROM MAIN 3R3V [RF/SQL] RIT UNIT IC152 UC6528 TWDCLC/TWCS/TWDTX XR/YD/XL/YU TWBUSY/TWDRX/TWPIRQ MFDAK/MFDBK/MFK LCD-TW TW-CTRL 3R3V PUSH-SWs FRONT MAIN DIAL [TRANSMIT]...

  • Page 62: Schematic Diagram

    SECTION SCHEMATIC DIAGRAM • FRONT UNIT 3R3V LDTC143ZE MFDAK MFDAK HT-191UYG PCLEK PBAAK MFDBK MFDBK PWRDS PBABK PBBAK PBBBK To the LCD (FRONT UNIT:DS1) 2.2K 4.7K [RIT] TP90D96AE20 [dTX] [CLEAR] LDTC143ZE J101 PBBBK PBBAK MFDAK R3 100 PBABK [POWER] TP90N00AE20 PBAAK PCLEK LDTC143ZE...
  • Page 63 • MAIN UNIT (MAIN-1) MAIN-2 MPZ1608S300A MAIN-3 H3R3V MAIN-2 3R3V EP201 MAIN-6 2R5V MPZ2012S601A 1R2V MAIN-4,6 MAIN-3 MP201 H1R18V MAIN-2 IC141 AFONS AFONS R242 UMODS MPZ1608S101A UMODS MAIN-4 3182 MDAT USQLS R243 USQLS D241 DRESH ASQLS IC241 L201 ASQLS EP202 MSTB2 HTRAS IC211...
  • Page 64 • MAIN UNIT (MAIN-2) H3R3V H1R18V 3R3V H1R18V H3R3V HV H3R3V ESTA ESTA H3R3V EKEY EKEY H1R18V TCON MPZ1608S601A DRESH DRESH PSTB PSTB DSTB C351 DSTB MSTB2 HSENI MSTB2 HSENI MSTB1 RTKI MSTB1 RTKI IC351 MDAT MDAT MAIN-3 SD_D0 SD_D0 SD_D1 SD_D1 GT24C128B...
  • Page 65 • MAIN UNIT (MAIN-3) UPWS USB3R3V H3R3V 3R3V R663 MAIN-1 X661 CR-1020 R625 1.5K R792 R790 R794 X621 HSENI CR-1019 Q802 100K 100K 120K L2SC4081 R805 D801 C674 IC621 R795 L1SS400 R793 IC791 IC791 V+ NJM2904CRB1 NJM2904CRB1 R633 R621 R622 R631 Q803 DSC7004S0...
  • Page 66 • MAIN UNIT (MAIN-4) 3R3V 1R2V UMODS MAIN-1 IC961 AD5V VOUT C936 47 F93 SPDI C955 J901 XC6209F502MR C937 SPDO 100P SPCK IC972 47 F93 NJM2904CRB1 SPCS R982 C976 R971 MCLK R972 R978 FPX_AGC 100K BCLK IC972 IC971 R976 Q971 C902 47 F93 R973...
  • Page 67 • MAIN UNIT (MAIN-5) 3R3V MAIN-1 MMZ1005Y102CT 3R3VA MAIN-4 R1212 IC1211 X1201 C1211 EP1212 R1213 MMZ1005Y102CT 0.001 C1205 R1211 MAIN-1 R1201 0.001 SN74AHC1GU04DCK REFV CLK41M_P C1212 VCONT CR-932 EP1202 CLK41M_N CASE-BM7H IC1318 C1213 BA033FP 0.01 R1318 R1319 CP1306 SHORT IC1325 VOUT XC6209F332MR CP1305...
  • Page 68 • MAIN UNIT (MAIN-6) IC1351 IC1351 IC1351 IC1351 IC1351 R1371 AA12 DIFFCLK_7p DIFFIO_T42n DIFFCLK_4n AA21 AB12 DIFFIO_R36p DIFFCLK_2n DIFFCLK_7n DIFFIO_T42p DIFFCLK_4p AA13 RUP3 DIFFCLK_2p DIFFIO_B23p DIFFIO_T41n DIFFIO_T22n IC1351 DONE AB13 RDN3 CONF_DONE DIFFIO_B23n DIFFIO_T41p DIFFIO_T22p R1386 AA14 DIFFIO_B1p DIFFIO_B25p MSEL0 DIFFIO_T40n DIFFIO_T21n AB14...
  • Page 69 • RF UNIT IC1061 EP1022 R1027 R1022 VOUT R1501 2.7K R1502 MMZ1005Y102CT R1047 R1042 EP1042 R1052 R1021 R1023 2.7K 4.7K 2.7K MMZ1005Y102CT D1501 R1503 XC6209F502MR R1573 1.8K 1.8K R1041 R1043 Q1051 Q1512 4.7M L1SS400 L2SC4081 LDTC143ZE Q1511 1.8K 1.8K C1052 D1052 R1574 R1511...
  • Page 70 • TUNER UNIT (TUNER-1) NATT1S NATT1S NATT1R NATT1R D1011 D1021 NATT2S NATT2S NATT2R NATT2R C1023 C1013 LDAN222 LDAN222 C1024 C1014 RL1011 RL1021 EC2-9TNU EC2-9TNU J1001 L1001 To the PA UNIT L1009 AS100340 DET_OUT AS080440 R1431 R1432 R1503 R1441 R1442 J1042 R1451 R1452 LR-604...
  • Page 71 • TUNER UNIT (TUNER-2) NATT1S NATT1S NATT1R NATT1R NATT2S NATT2S NATT2R NATT2R D2311 D2321 D2331 D2341 D2351 D2361 D2371 D2381 D2391 C2313 C2323 C2333 C2343 C2353 C2363 C2373 C2383 C2393 LDAN222 LDAN222 LDAN222 LDAN222 LDAN222 LDAN222 LDAN222 LDAN222 LDAN222 C2314 C2324 C2334 C2344...
  • Page 72 • PA UNIT (PA-1) Q221 TJ50S06M3L F202 IC221 1205 BA09FP F201 FHA010 DC-IN Q222 RUM002N02 R224 R223 R211 0.001 R140 R141 IC211 C141 R142 EP111 0.0068 0.68 MPZ1608S221A L306 Q131 PA-2 RD70HVF1C INA199A2 LA-262 LR-606 FILI L133 R109 L132 PA-2 R213 R125 L121...
  • Page 73 • PA UNIT (PA-2) L711 3.5MHz/3.8MHz L921 L922 100U RL801 J961 TX/RX LR-216 LR-214 FTR-B4CA009Z C801 C923 C925 L931 FILI RL920 270P RL921 100U C934 C966 150P 0.0033 L920 C807 100U FTR-B4CA009Z FTR-B4CA009Z C808 L803 4.63MHz/5MHz/7MHz 100U L841 L842 LR-218 LR-216 C843 L851...
  • Page 74 Highway 17A 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...
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