IC-7300/M/S SCHEMATIC DIAGRAMS - AB4OJ

1 SCHEMATIC DIAGRAMSTo upgrade quality, some components may be subject to change without in Japan 2015 2016 Icom Inc. yu, , i, , o, , !0!0, , !1!1, , !2!2!6!6, , !7!7!4!4, , !5!5!3! (T)C31/C31W78900016990 OPC-1741( ) C31 C31/C31P4J801J101SP1J6011234567891011121 3141516171819202122232425262728293031323 334353637383940J21234567891011121314J421 123456J18021234J18031234 POCVFORLP14 VEALCDSHKHSENIIDLDRESHGNDICCVMCKGNDMSTB1 DRIV3R3 VNCGNDSKYS8 VNCMDATNCFAN8 VNCNCGNDALCLTXSREFLPGNDVDD(3R3V)GNDGNDSD CDNCSDDAT1 SDDAT3 SDCMDSDWPSDCLKSDDAT2 SDDAT0[ACC]CIV[REMOTE]CIVEUSB-[USB]PHGMI CIMICEPHOFAN+FAN-SPONCNCNCNCNCSPOSPE[EXT -SP]USB+SPOSPERFTSTB4 RFCNT(EXT)3R3 VGNDTCLKCNTRS(EXT)TSTB1 GND14V14 VNCNCPHASEISWRL14 VGNDGNDGNDTSTB2 IMPINC3R3 VGNDNCTPWRLIREFVTOETSTB3 GNDTDAT14 VGNDESTAEKEY14 VPSTB14 VFORLPNCREFLP14 VSTARTGNDGND14 VKEYGNDHFID2 VGNDHVHFID1V14V14 VGNDGNDIDL14V14 VTXSHVMCKTHMLDRESH14 VNCGNDPWRSMDAT3R3 VDRIDVHVGND14 VGNDHVHVGNDGNDGNDNCSKYSDSHKEALCGNDHSENIG NDICCVDSHKGNDNCNCGND14 VTXS8 VMSTB1 POCVHSENIEALCDRESHNCGNDDRIVIDLGNDMCK3R3 VSKYSMDATALCLREFLPGNDNCNCFORLP8 VTDATPHASEI3R3V14V3R3 VSWRLTOETSTB1 CNTRS(EXT)NCGNDGNDGNDTCLKTSTB3 GNDNCTSTB2 NCGND14 VIMPITPWRL14 VRFCNT(EXT)

2 GNDGNDNCIREFVTSTB414 VPWRSHFID2 VGNDGNDFORLP14 VDRESH14 VMDATGND14 VSTART14 VTXS14 VHFID1V3R3 VKEYGND14 VGNDPSTBHVNCHVDRIDV14 VREFLPIDL14 VMCKGNDGNDGNDHVGNDNC14 VTHMLMAIN UNITTXRFRXRF[ALC] [SEND] [ELE-KEY] [TUNER] [DC]TUNER UNITPA UNITRF UNIT[ANT]CHASSISSPW15 GNDLCD_R6 LCD_B4 LCD_G4 LCD_R7 LCD_B65 VGNDLCD_R5 LCD_HSLRXDFRESGNDLCD_ONLCD_B53R3V3R3V8 VLCD_VSPWRKLCD_R3 NCGNDLCD_B3 LCD_R48 VLCD_DELCD_G7 LCD_G2 LCD_B7 LCD_G58 VLCD_G3 NCNCLCD_G6 GND3R3 VLCD_CLKLTXDFRONT UNITSDCLKVDD(3R3V)GNDSDDAT2 SDWPSDDAT1 SDDAT0 SDCMDNCSDDAT3 SDCDGNDLCD_B5 LCD_B7 LCD_R7 LCD_ONLCD_R6NC3R3 VLTXDLCD_R38 VLCD_G5 LCD_G4 GNDLCD_B4 LCD_G6 LRXD3R3 VNCGNDLCD_DE8 VLCD_R5 GND8 VGNDLCD_G75 VFRESLCD_G3 LCD_HS3R3 VLCD_VSLCD_B3 GNDLCD_G2 LCD_B6 NCLCD_CLKPWRKLCD_R4W218910000500 FFC-1055 ( )W228910000220 FFC-1024 ( )W238910000530 FFC-1057 ( S)W248910000520 FFC-1056 ( S) TJMW258900018810 OPC-1974( ) W118600037600SX3765P11*P12CH(3765-1) RFRFTXRF TXRFRXRF RXRFqGENERAL WIRING (GENERAL WIRING-1) SCHEMATIC DIAGRAMSTo upgrade quality, some components may be subject to change without in Japan 2015 2016 Icom Inc.

3 WW38910000070 FFC-1008 ( )J10112345678910111213141516171819202122 2324252627282930313233343536373839404142 J45112345678910J421123456J60112345678910 1112131415161718192021222324252627282930 31323334353637383940J212345678910111213 14J71123456J61123456J51123456J201123456J 112345678J112345678J112345678J2123456789 10J21234P11234P11234J401123456J21234R1R6 B6G3 DISPB0 XRVLED-R2B2R7B7G4 HSYNCB1 YDGNDR3B3G0 GNDG5 VSYNCXLVDDR4B4G1 GNDG6 DEYUR0R5 VLED+B5G2 CLKG7 NCDS1(LCD)MUDLMICISQLSPSEND8 VAFOGNDPSENDMICEGNDMICIPHOMICEPHOEPHOPHK PHOEGNDPBABKPBBBKPCLEKPBAAKPBBAKGNDMFKMF DBKMFDAKRIT BOARDPBT BOARDVR BOARDRFLAFLGNDGNDPHONEBOARDMIC BOARDFRONT UNITLCD_B5 LCD_CLKPWRKGNDLCD_R4 LCD_B6 LCD_B7 LRXDNC3R3 VLTXDLCD_R3 LCD_R68V5 VLCD_G5 FRESLCD_G63R3 VNCLCD_B4 LCD_DEGND8 VGNDGND8 VGNDLCD_G4 LCD_G7 LCD_R5 LCD_G3 LCD_ON3R3 VLCD_VSLCD_B3 LCD_R7 LCD_G2 LCD_HSNCGNDSDCMDSDDAT2 NCSDWPSDDAT3 SDCLKSDDAT1 SDCDVDD(3R3V)SDDAT0 GNDSD BOARDGNDNCGND3R3V3R3 VGNDMAINDAKMAINDBK5V[MAIN DIAL]PBABKGNDPBBBKPCLEKPBAAKPBBAKRFL3R3V 3R3 VGNDGNDAFLPHOEPHKPHOGNDMFDBKMFDAKGNDNCMF KGNDMUDLSQLSGNDMICIMICE8 VPSENDAFOGNDGNDW18600036920EX2500 P01*J01 MAW48900018000 OPC-1344A (P1N10L70)W18910000070 FFC-1008 ( )W28910000070 FFC-1008 ( )

4 To the MAIN UNITTo the MAIN UNITTo the MAIN UNITDISPLAY BOARDyGENERAL WIRING (GENERAL WIRING-2) SCHEMATIC DIAGRAMSTo upgrade quality, some components may be subject to change without in Japan 2015 2016 Icom Inc. eALC-CTRLQ3275/Q32762SK3018/KTC4075 LDTC143 EEQ101 SWCTRLHPR2 SALCLATTALCAMPPREAMP2SC3356Q1411Q1412/Q1 413 LDTC143 x2 LPFFORLPPHASEIPOCVHATOF13 PHASEDETALCAMPHSENISWRDETEALCHAT13 EALCALCAMPB0 REFLPAPCAMPSWALC-CTRLQ3275/Q32762SK3018/ KTC4075 BUFF SWRLANTENNAAPCAMPALCNASBSICCVATTYGRAMPBG A2866IC1031 IDLMETERAMPHPR1 SIMPIAMSBUFFHPOF13 RFSW11 DRIDVLPFSW11 THMLLPFSW11 DRIVEAMPCTRLQ771-Q777 LDTC143 x7Q781-Q787 LDTA123 x7 LPFHFID1VL5J200121234 BIASL6SW11SW11 PWRAMPQ131/Q132RD70 HVF1 x2L4SW11 HFID2VL1 LPFBIAS+9 REGSW11 BIASSW11 HEATSENSSW11SW11 DRIVEPRELPFSW11SW11SW11L7L2T9 VEKEYESTALPFLPFL3SW11[DC ]

5 REVERSECONNECTPROTECTIDLIDDETSW12 PWRSCTRL12 BIASRFAMPT9 VATTD961/D962 LRB751Sx2 PWR/SWRDETFORLPBUFFBUFFREFLPDRESHSN74 AHC595 PWx3IC1301-IC1303I/OEXPHATOFSHATTSHPR2 SHPOFSHPR1SB0SB1SB3SB2SB7SB6SB5SB4SB8 SSKYSJ851BU2092 FVx4IC2811-IC2841I/OEXPIREFVDSHKMUTET9 VLPFT9 VPIND1021 ATTBAP70 QALCPIND1041 ATTBAP70 QSN74 AHC595 PWIC751I/OEXPHPFRPPSATTDRIV+5 VREGXC6209F502 MRIC1061 TXSCTRLQ1061/Q1062 LDTA114/LDTC143 CTRLTXST9 VSW11SW11SW11T/RQ778 LDTC143 CTRLCTRLQ1111-Q1261 LDTC143 x15 CTRLQ1098/Q1110 LDTC143/LDTA114 HATTSHATOFSHPOFSHAT13 HATOF13 HPON13 CTRLQ1097/Q1099 LDTC143/LDTA114 CTRLQ1096/Q1095 LDTC143/LDTA114 CTRLQ1094 LDTA114 CTRLQ1093 LDTA114D1091 L1SS400 CTRLQ1092 LDTC143 CTRLQ1091 LDTC143 HPR1 SHPR2 SHPON13 HPR8 HPON13 HPR8L6SL1SL5SL4SL3 SRPPSL2SL7SB9SB10SB11SB12SB11 TXSB12 TXSMUTET5 VATTDPDDETBPFB11B8 BPFBPFB10 BPFB9B11 TXB12 TXB12 BPFBPFBPFB1B7 BPFBPFBPFLPFB4B6 BPFB5 BPFBPFB3 BPFB2 TPWRLBUFFBUFFD1505 IMPDETQ1612 MMBD452 MMBD452D1271 TUNENET2SC4116 TUNER UNIT2SC4116Q1611IC1701BA2903 MMBD352 X2HF/50 MHz/70 MHzD1311/D1312[SEND]NJM13403Q1513 LDTA114 LDTC143IC1502 NJM13403Q1562 NJM13403IC1501L2SA1576Q1512Q1511 NJM13403 RUM002N02Q1521IC1501 NJM2904 CRB1IC150118dBIC1501 KTC2875[ALC] MHzRD15 HVF114 VIC221PA MHzRD01 MUS2Q121[TUNER] MHzP9VD202DF30SC4 MINA199A2TJ50S06M3L14VQ221Q222 RUM002N02HV2SK2854Q1013dBNJM2904 CRB1IC981 NJM2904 CRB1IC981 MDAT/MCK/MSTB1 TDAT/TCLK/TOETSTB1-TSTB4[ELEC-KEY]

6 Fc=76 MHzQ811D811/D812 BAR64 KTC2875To the MAIN MHzQ1571 L2SC4081P9 VIC1701BA2903IC211 LDTC143/LDTA114Q341/Q342x2Q1051D1051/D10 52 BAR64L2SC4081B0-B12 TXB0S-B12 TXS8VL1S-L7 SLDTA114Q1561Q1001 LDTC143D1001 MHz(TX) MHz(TX) MHzPOWER DETD1201 MMBD452 NATT2 SNATT2 RNATT1 SNATT1 RNJM2904 CRB1IC1901 NJM2904 CRB1IC1901x2RF UNITBLOCK DIAGRAM (BLOCK DIAGRAM-1) SCHEMATIC DIAGRAMSTo upgrade quality, some components may be subject to change without in Japan 2015 2016 Icom Inc. rPCM2901 EIC661 USBCODECAMODUMODA/DSN74 AHC1G32IC662 BIASCTRLSPSMICAMPCP2102 GMRIC641 USBBRIDGED/AISL5857 IAZIC1331D/ALRXDPWRSEEPROMGT24C128 BIC351 PIND1251 ATTBAP70 QDRESHAAFIREFVBUFFTC74 VHC04 FTIC701CR-1017X301 RESETNJU7704F3IC371 AFAMPTC7S66 FUIC681DC-DCDCAMPUPWSUSQLSSW12 IFAMPCR-1020X661( MHz)A/DLPFREFVCR-1019X621( MHz)

7 AGCAMPBUFFTC74 VHC04 FTIC701CI-VI/FL2SA1576Q712Q711 L2SC4081 AFOASQLSHTRASBUFFUMODSLPFMICISW11 NJU7704F3IC361 VDETUMODTXSRXSRTKIHSENISWIC691TC7W66 FUAAFAFAMPUCLKSRX-8803 LCRTCIC381EN25Q64IC391 FLASHMEMORYFANVUCLKSBUFFNJM2904 CRB1IC125 FSKSWQ1106 KTC4075 UPWSFANVVBUSFANCTRLHFID2 VPHFID1 VHFID2 VHFID1 VPRFBUFFNJM2904 CRB1IC135 BUFFNJM2904 CRB1IC135 TPCF8107Q746 SWQ747 RUE002N02 STARTTC74 VHC04IC701 TUNERI/FQ852 LDTC143Q851 LDTA114 HTRASASQLSSP1 AFONSJ101 SQLSWDC-DCSPSSENDSWICCVDC-DCAMODHSENIJ75 11234DC-DCUSBHUBPWRSD/A+3 REGA/D+3 REGCI-VI/FL2SA1576Q692Q691 L2SC4081 RTKIHFID2VJ130212345678910111213D/AHFID1 VBANVUMODS DIDVEALCBANVREFVPOCVPWRKR2A20169 SAIC121I/OEXPIC141 SN74 AHC595 PWKEYEN25QH32A-104 HIPIC902 FLASHMEMORYCR-1021X901D/ALTXDUSQLSJ611 DCAMPDCAMPLPFIC241 BACK-UPCTRLXC6222A321 DCAMP+3 VREGXC6209F332 MRIC611+8 VREGNJM7808DL1 AIC271+ LDTC143 LDTC143Q643SW VBUSLDTA114Q645 SWLDTA114Q644 SWAFONS+5 VREGXC6209F502 MRIC961 LVDSDRIVESN65 LVDS1 DBVIC1212 BPFXTALAMPIC1221SN74 LVC1G04 DCKDRIV+8 VREGNJM7808DL1 AIC276 LDTC143Q642SW+3 REGIC1325XC6209F332MR+3 REGIC1318BA033 FPAGCV+5 VREGXC6209F502 MRIC1241+3 REGIC1321XC6209F332 MRFTXSLDTC143Q1234 SWQ1235 LDTA114 LDTC143Q1231 SWQ1232 LDTA114 FRXSS-RAMIC140123LC1024 TFTXSFRXS50 RTS70 RTSMAINHVPCM1802 MDAT/MCKH3R3V3R3 VTPS62110 TPS62110H3R3V8V5 VADP2370 ACPZRESETIF-DSP( MHz)DCCLKTMS320C6745 CPUPCM1754 MSTB2 ECK/EDT/MSTB1/PSTB14VR7S721000 VCFP(48 MHz)

8 IC1001IC971IC201IC221IC261IC901 HSK0/HSK1/DRESD/FRWTIC301 MAIN UNITDSPCK/DSPR/FRM/ MHz( MHz)EP4CE55F23I7N2SC3356Q1202Q1201CR-932 DACLKX1201SN74 AHC1GU04 DCKIC1211 FANDSC7004SQ45 RTC_IRQ/RTC_SCL/RTC_SDAIC721TS462 CPTIC992MP7741IC1003 NJM2904 CRB1Q1001 IC1002TS462 CPTTC7W53 FKIC972 LDTC114IC1002IC992TS462 CPTSCPCK/SCPR/SCPX/SCPSSSTART/KEYTCON/ES TA/EKEY [ACC] [EXT-SP][SP]TR SWTR SWLDTC143 LDTC143 USB3R3 VIC621Q661Q641 TUSB2046 BIVFR[REMOTE]H4V[USB]SDPWSTo the SD UNITTo the RF UNITCRXD/CBSYCTXDHV PDVUDTXD/UDRXD/UDBSYDR_AF/DR_RSV/DX_REC/ DX_FMTLCD_R3-R7/LCD_G2-G7/LCD_B3-B7 LCD_DE/LCD_VS/LCD_HS/LCD_ON/LCD_CLKTO FRONTTO PACIVIC991 PCM1754TS462 CPTNJM2904 CRB1IC9725VH4 VNJM2904 CRB1IC7915VH1R18 VDCCLKTSTB1-TSTB4 TDAT/TCLK/TOETPWRL/IMPI/SWRL/PHASEITo the TUNER UNITVDDSFLSS/SFLCK/SFLD0 SLFD1/SFLD2/SFLD3H3R3VH3R3VH3R3 VUSKIUSSENIQ972 MHzF8V/DCCLKDSHK/SKYS/ALCLFPX_AGC/FPX_DE T/FPR_MOD/MCLK/FPCAL/DFR_MOD/DFX_DET/DFX _AGC/CFG/CAL/STAT/FPRES/DONE/SPDO/SPCK/R SSI/FPCAL/BCLK/FRM/MCLKFPX_AGC/FPX_DET/F PR_MODSPCS/SPCK/SPDO/SPDIH3R3V USSPD5V RFD3R3 VRFA3R3V8V8V8V8 VFFCLK/FFCSFFDO/FFDISDWP/SDCD/SDDAT1/SDD AT0

9 SDCLK/SDCMD/SDDAT3/SDDAT2/DCCLKTo the DISPLAY UNITBLOCK DIAGRAM (BLOCK DIAGRAM-2) SCHEMATIC DIAGRAMSTo upgrade quality, some components may be subject to change without in Japan 2015 2016 Icom Inc. tLRXDS22 LCD2SB1132 LLIMITERQ462Q461 L2SA1576 ARLCDLIGHTLTXDAFOSENDSWDSC7004SQ492Q493 LDTA114Q491 L2SC4081TW-CTRLIC152UC6528 PWRKTPS61161 ADRVIC101 LCDLIGHTCTRLLCD-TWFRESSQLLDTC143 ZEQ481 CTRLQ1 LDTC143 ZEHT-191 UYGDS1 RGSEC2462 CDS1107 AFECTRLQ3 LDTC143 ZECTRLQ2 LDTC143 ZEJ112345678 MICIMICEJ1EX-2500[TUNER]PUSH-SWsFSENI[ ]DISPLAY UNITFSQS[QUICK]FLRXDCPUPBAAK/PBABK/PBBAK /PBBBK/PCLEK[POWER KEY]FLTXDFRONTMAINDAK/MAINDBKPWRK[SCOPE] [TS]FTRAS[AUTO_TUNE]FUDL[RIT]3R3V[NOTCH] [NB]PWRK[MENU][NR]8V[SET]BKLVTDSRDSR5F10 4 LCAFBIC501 FRONT UNITSD UNITPBT UNIT[RF/SQL][AF GAIN]SDWP/SDCD/SDDAT1/SDDAT0 VDDSDCLK/SDCMD/SDDAT3/SDDAT2[TRANSMIT][C LEAR] [dTX][CLEAR][SPEECH/LOCK][SPLIT][A/B][V/ M][M-CH DN][MP]

10 MAIN DIALRFL/AFLTWDCLC/TWCS/TWDTXTWBUSY/TWDRX /TWPIRQR3-R7/G2-G7/B3-B7DE/VSYNC/HSYNC/C LK/DISPPHK[XFC]GNDMIC U/DMIC+8 VSQLPTTMICE5 VPWRDSDS1(LCD)VLED-/VLED+To the MAIN UNIT3R3 VVR UNITRIT UNITMFDAK/MFDBK/MFKPHONE UNITMIC UNITAF OUT[M-CH UP]XR/YD/XL/YU3R3 VMICIMICEFROM MAINTo the MAIN UNITBLOCK DIAGRAM (BLOCK DIAGRAM-3) SCHEMATIC DIAGRAMSTo upgrade quality, some components may be subject to change without in Japan 2015 2016 Icom Inc. yFRONT UNITR5F104 LCAFB (SX-3765C)IC501P120/ANI19/VCOUT01P43/(IN TP9)2P42/(INTP8)3P41/(TRJIO0)4P40/TOOL05 RESET6P124/XT2/EXCLKS7P123/XT18P137/INTP 09P122/X2/EXCLK10P121/X111 REGC12 VSS13 EVSS014 VDD15 EVDD016P60/SCLA017P61/SDAA018P62/SSI0019 P6320P31/TI03/TO03/INTP4/(PCLBUZ0)/(TRJI O0)21P77/KR7/INTP11/(TxD2)22P76/KR6/INTP 10/(RxD2)23P75/KR5/INTP9/SCK01/SCL0124P7 4/KR4/INTP8/SI01/SDA0125P73/KR3/SO0126P7 2/KR2/SO2127P71/KR1/SI21/SDA2128P70/KR0/ SCK21/SCL2129P06/(INTP11)/(TRJIO0)30P05/ (INTP10)31P30/I