Icom IC-F2721 Service Manual
Also see for IC-F2710: Operating guideInstruction manualInstruction manualService manual
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11 - 3IC20HD64F2239TE16[F2721D], [F2821D] onlyPE5/D5PE6/D6PE7/D7PD0/D8PD1/D9PD2/D10PD3/D11PD4/D12PD5/D13PD6/D14PD7/D15CVCCPC0/A0VSSPC1/A1PC2/A2PC3/A3PC4/A4PC5/A5PC6/A6PC7/A7PB0/A8/TIOCA3PB1/A9/TIOCB3PB2/A10/TIOCC3PB3/A11/TIOCD3PB4/A12/TIOCA4PB5/A13/TIOCB4PB6/A14/TIOCA5PB7/A15/TIOCB5PA0/A16PA1/A17/TXD2PA2/A18/RXD2PA3/A19/SCK2P10/TIOCA0/A20P11/TIOCB0/A21P12/TIOCC0/TCLKA/A22P13/TIOCD0/TCLKB/A23P14/TIOCA1/IRQ0P15/TIOCB1/TCLKCP16/TIOCA2/IRQ1P17/TIOCB2/TCLKDAVSSP97/DA1P96/DA0P47/AN7P46/AN6P45/AN5P44/AN4P43/AN3P42/AN251P41/AN152P40/AN053VREF54AVCC55MD056MD157OSC258OSC159RES60NMI61STBY62VCC63XTAL64VSS65EXTAL66FWE67MD268PF7/69PF6/AS70PF5/RD71PF4/HWR72PF3/LWR/ADTRG/IRQ373PF2/WAIT74PF1/BACK/BUZZ75PF0/BREQ/IRQ2P30/TXD0P31/RXD0P32/SCK0/SDA1/IRQ4P33/TXD1/SCL1P34/RXD1/SDA0P35/SCK1/SCL0/IRQ5P36P77/TXD3P76/RXD3P75/TMO3/SCK3P74/TMO2/MRESP73/TMO1/CS7P72/TMO0/CS6P71/TMRI23/TMCI23/CS5P70/TMRI01/TMCI01/CS4PG0/IRQ6PG1/CS3/IRQ7PG2/CS2PG3/CS1PG4/CS0PE0/D0PE1/D1PE2/D2PE3/D3PE4/D4IC21TC7MET374AFKO-CTRL1Q1D2D2Q3Q3D4D4QGND11 CLK12 5Q13 5D14 6D15 6Q16 7Q17 7D18 8D19 8Q20 VCCIC18 AK4550VTVCOMAINRAINLVSSVDDDEM0DEM1SDT0 SDT1LRCKMCLKSCLKPWADPWDAAOUTLAOUTRX6CR-80212.288 MHz1 VCON2 GND 3OUT4VCCIC25TC7MET541AFKG1A1A2A3A4A5A6A7A8GND11 Y812 Y713 Y614 Y515 Y416 Y317 Y218 Y119 G220 VCCIC24S-80928CNMC1 OUT2 VDD3 VSS 4NC5CDIC22TC7S04F123 45IC28HN58X2416TI1A0 2A1 3A2 4VSS5 SDA6 SCL7 WP8 VCCIC13NJM2115VIC33 XC6204B332MR1VIN 2VSS 3CE4 NC5 VOUTIC31 XC6204B332MR1VIN 2VSS 3CE4 NC5 VOUTIC32 R1114N151B1VDD 2GND 3CE4 NC5 VOUTIC17TC7SH32FU123 45R1714.7kR172 47kC2160.01C1860.01C1820.01C1470.01C1460.01C1810.01C1780.01R1154.7kC2360.01C2370.01C2380.1C2750.1R229 3.3kR230 3.3kR231 3.3kR233 3.3kR228 5.6kR227 5.6kR226 5.6kR225 5.6kR224 5.6kC3370.1R29010kC3110.1C3140.1C3104.7C3130.1R20147C2540.1C2530.1R19947C2510.1C2730.001C2721C21510C21310C2140.1C1800.1R16710kR168JPWL161HC1790.0022C1770.1R142470R141100C17647pC212 1C2100.001C20947p R164100R166 1kR165 3.3kR1405.6kR138 4.7kC3150.01C1750.1R116 20kR11120kR11020kC142470pC141270pC14582pC14347pR112100C14010C1440.1R1458.2kC1850.1C18410R14422R1468.2kC1830.1R12247R12115kC1487pC1520.1R1244.7kR1184.7kR1171.8kR1235.6kR120100R1191.5kC1500.1C1190.1 C1510.1C14910R961.5kC980.1C1000.1R22247kC3670.1C3680.1C3720.1C3380.1C3390.1C3430.1R19247kR20447kR485100kR484100kR486100kL20 1HR1694.7kR170 4.7kR268 47kR273 100R235 100R234 100R236 100R205100R206100 R207100C318 47pC317 47pC316 47pC31947pC32047pC278 47pC27747pC27647pCP12CP13CP14CP15 CP16CP18CP19L451HFI3CFWCA450KEFAI OR232 3.3kR272 100R271 100R270 100R269 100 C3704.7C3714.7C3694.7C34110C34210C34010Q32SC4215R67100R684.7kR693.3kR408 1kIC16AD7476ARTZ1 VDD2 GND3 VIN 4SCLK5SDATA6CSR2984.7IC15NJM2711F1234 5IC41TMS320VC5416PGE1201 CVSS2 A223 CVSS4 DVDD5 A106 HD77 A118 A129 A1310 A1411 A1512 CVDD13 HAS14 DVSS15 CVSS16 CVDD17 HCS18 HR/W19 READY20 PS21 DS22 IS23 R/W24 MSTRB25 IOSTRB26 MSC27 XF28 HOLDA29 IAQ30 HOLD31 BIO32 MP/MC33 DVDD34 CVSS35 BDR136 BFSR1 37CVSS38BCLKR139HCNTL040DVSS41BCLKR042BCLKR243BFSR044BFSR245BDR046HCNTL147BDR248BCLKX049BCLKX250CVSS51HINT52CVDD53BFSX054BFSX255HRDY56DVDD57DVSS58HD059BDX060BDX261IACK62HBIL63NMI64INT065INT166INT267INT368CVDD69HD170CVSS71BCLKX172CVSS73BFSX174BDX175DVDD76DVSS77CLKMD178CLKMD279CLKMD380HPI1681HD282TOUT83EMU084EMU1/OFF85TDO86TDI87TRST88TCK89TMS90CVSS91CVDD92HPIENA93DVSS94CLKOUT95HD396X197X2/CLKIN98RS99D0100D1101D2102D3103D4104D5105A16106DVSS107A17108A18109 A19110 A20111 CVSS112 DVDD113 D6114 D7115 D8116 D9117 D10118 D11119 D12120 HD4121 D13122 D14123 D15124 HD5125 CVDD126 CVSS127 HDS1128 DVSS129 HDS2130 DVDD131 A0132 A1133 A2134 A3135 HD6136 A4137 A5138 A6139 A7140 A8141 A9142 CVDD143 A21144 DVSSR22310k[F2721D],[F2821D]only47k [others]R139 22kR291 47kR292 47kC1870.0022C3120.01CP47 CP48CP49CP50CP51R437 47kR438 47kR441 1kCP54IC19 NJM2711F1234 5C5375pC5380.1C5390.1R4481kR2212.2kR44910kR45010kC25210pR20247kR20347kR114100R11368kD1D2D3D4D5D0BFSR0BDR0D6D7HD6HDS2HDS1HD5HD4HD1HBILHD0HRDYHINTHCNTL1HCNTL0D7D6D5D4D0D1D2SIOCCSISCKOPTTINBUSYDPTTOTCCSICIRQDPTTINPTTOTBCLKX1BFSX1BDX1BDR1BFSR0BDR0BCLKR0BUSYDD3HD7HASHR/WHCSHD7HD3HD2HASHCSHDS1HDS2HR/WHBILHCNTL0HCNTL1HD7HD6HD5RDATRCKBFSX1BDR1TMSTCKTRSTTDITDOEMU1EMU0TMSTRSTTDI3VAXTDOTCKEMU0EMU1BCLKX1BCLKX1BDX1BFSX1BUSYCSOCCSCCKPTTICSIDIRQDDPTTDRMTDMMTDAFONRSDMIDAFODAFORSSID3VA3VA5V5V5V5VDFILDFIL3VAX3VAXCCSI5V5V5V5VCIRQDSOO3VAC_RESMD2DMOTXD2RXD25V3VA3VA1.5VB3VC3VC3VCDSP CPUDSP1.5VB1.5VB3VC1.5VB1.5VB5V 5V5V5V5VTx Digi/Ana(X)Rx Digi/Ana(Y)OPT RMUT / CPU RMUT (Z)5VJ324681019753J4161514131211109876543211730292827262524232221201918PTTIDPTTRSSIDBUSYCTSIRTSIDTXDDRXDVCCDMMTDAFONDRMTDAFOCCSIRQDCSOGNDGNDCSIDCCKDFIL5VDMODMIMD2C_RESTXD2RXD23VAR14310kIC-F2721D andIC-F2821D onlyIC38LA4425AQ28DTC144EUAQ29DTC363EKQ54XP4601IC1NJM12902VIC1NJM12902VQ55DTC144EUAR361kIC2AK23461 AGNDIN2 AGND3 TXIN4 TXINO5 LIMLV6 EXTLMIN7 MOD8 VSS9 TCLK10 TDATA11 DI/O12 RDF/FC 13SCLK14DIR15XOUT16XIN17VDD18EXPOUT19RXAFIN20RXAF21RXLPFO22RXINO23RXIN24TESTC147p C247pC2647pC2747pC4747p C4647pC2847pC760.001R90470C1110.1C1120.1C900.1IC1NJM12902VQ562SK3019Q522SK301991081 23 141312C131C111C100.001C1447p C1647p C1847p C2047pC1547pC1747pC2247pC650.1R42 33kR43 82kR5447kC770.1C780.0018R111kC190.047C37 180pC620.001X1CR-7653.6864 MHzC6322pC3822pC610.0022C640.1R4468kR41470kR468JPWR31 10kC800.001C5850.1C930.1C5720.01R60100kC440.001C450.001C950.1IC30M62334FP1 AO12 AO23 AO34 AO4 5GND6SDA7SCL8VCC R29610kR297470C3650.1C790.1IC9NJM12902V9108IC9NJM12902V131214IC9NJM12902V657IC9NJM12902V23 1R158180kR15956kR16222kR1631kR16122kR15747kR16068kR13768kR13668kR10968kR10868kC17347pC11547pR95390kR15647kR13547kR13447kR1074.7kC2070.015C1720.1C170820pC1360.1C13847pC2060.001R10647k Q7DTC144EUAIC9NJM12902VV+4GND11C1354.7R92100kR9327kR9427kC1090.1C960.1R123.3k C210.1R2910kR463JPWC1130.1C1141C120.1C660.1R56100kR7047C940.1C911C1100.1CP7CP8IC42BU4053BCFV1 Y12 Y03 Z14 Z5 Z06 INH7 VEE8 VSS 9C10B11A12X013X114X15Y16VDDIC43BU4053BCFV1 Y12 Y03 Z14 Z5 Z06 INH7 VEE8 VSS 9C10B11A12X013X114X15Y16VDDR39427kC4880.47C410.0022IC44TA75S01FQ532SK3019123 45R3964.7kR39710k C4890.1C4900.1IC45BU4094BCFV1 STR2 D3 CLK4 Q15 Q26 Q37 Q48 GND 9QS10Q’S11Q812Q713Q614Q515OE16V+C4910.1R398100kR399100kCP30CP31CP32CP33CP34R4002.2kR4666.8kR3027kR4011.5kR3218kC492150pCP35CP36 CP37R421 1MR42710kD55DAP202UD64DAP202UR43447kR43547kC529100R5347kR4653.9kCP39D51DAP202U D52DAP202UD65MA2S111C6010IC8M62364FP1 VIN12 VOUT13 VOUT24 VIN25 VDD6 LD7 CLK8 DI9 VIN310 VOUT311 VOUT412 VIN4 13VIN514VOUT515VOUT616VIN617DO18VDAREF19RESET20GND21VIN722VOUT723VOUT824VIN8R9115kR46468kC208270pC171470pC17468pC1370.0033C13947pC568330pR639kR739kR98.2k R467JPWR108.2kR55680kR482100kR4220kC81R62120kR26330kR462330kR2712k R2833kC390.0015R39539kR3330kCP57CP58R4568kCP59MRDFMDIOMTDTMTCKSCKT1DSDADASTSCKSSOTENCREFBALTONEMSCKMICPOSWMFDAFMDACENC0CENC1CENC2DUSET2RLVATLVATENCSIGNALBEEPSENCMODSQLDETDASTSCKSSOTENCBALMODSQLDETDETDETMCOTTONEBEPOAFOMICARMTDRMTMMUTAMMTDMMTCIRQIRQAIRQDVCCVCCVCCVCC VCCVCCDMOPA PAPMFM PMFMMICA MICASSOSCKEXOEEXSTDAFODASW DASW DASWAFOUTDMICSIACSIDCSICSICSIMDIRSDECRMTORMUTRMTOMICADASWDASWDASW DASWMICADASWR8220kSIGDETDISCDISC2CDECR17 1MR18 1MR19 1MR14 1MR15 1MR16 1MAFONOBEPODISC2AFOUTREMCCSIRQACSIACSOCCKAMMTARMTGNDJ2R35 47kR33 47kC4347pC2447pR34 10kSIGOPMFMNWCDASTBUSYMCOTMICAPTTOPT1OPT2OPT3PTTIC4090.1C4650.001C4640.001R36510kC4394701234 5R32210k C4080.1R3242.2kC4101 C3860.47R30010kD34MA2S111DSPemulaterR34810kD36DAN222TLR321JPWR304100CP22CP23D53MA2S111R3233.9kAFONOAFOAFONDAFONVCCVCCVCCCP26C4790.001C48047pC46747pJ5J612SP1(IC-F2721/D,IC-F2710series only)YellowBlackEXT. SPINT. SP246810121119753J1C250.001CP38R20100kR447100kR44633kMMUTCIRQCSIR13100kCP1D54DAP202UR402100PTTIAPTTDPTTPTTO123456789101234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950767778798081828384858687888990919293949596979899100HD4HD3HD2HD1HD0HRDYHINTRSRTSISCKOSIOSOOCTSIDTXDDRXD123456789101234 567812345678 9101112131415161CUTO 2VCCRF 3VPRF 4CPORF 5GND 6FINRF 7FINRF 8GND 9OSCX 10OSCIN 11FO/LD 12RF_EN13 IF_EN14 CLOCK15 DATA16 LE17 GND18 FINRFFINIF20 GND21 CPOIF22 VPIF23 VCCIF24 OUT1C547pC647pC3347pC30.001C480.001C5047pC490.001C310.123 1 C700.1EP5ACZ1005Y-102-TC750.001R4947C8510pC1265pL1 1.8HR1 10kR2 270kR48470C7110pC73100pC2947pL415 nHC1047p C1237pR4291kR211MX2CR-79415.3 MHz1 VCON2 GND 3OUT4VCCC3210R22 330kC3068p5V5V5V5V5VVCCMFDAAFOPOSWFMDAMICCPU5CPU5CPU5CPU5CPU55V5V5V5V5V8V5V 5V5V8V5V5V8V8V8VGNDGNDGNDfromFRONTunit J1OPTIONALunitUT-109UT-110UT-111Rx/PA(Y)PM/FM(X)De-emphasis(Z)IC4LMX2352TM19R231kC40.1IC1NJM12902VD2MA2S077D3MA2S077 R5918kR8818kR894.7D4MA2S077D5MA2S077C880.1C890.1C5560.1C5260.1C1080.1IC1NJM12902VV+4GND11C3410pC530.01C5456pC510.01 C520.1C554pC567pL20.22HL30.82HQ12SC4116R371.2kR38680kR504.7kR844.7kR874.7kR4253.3kR4264.7C5270.1FI1CFWLB450KE2AIOFI2CFWLB450KGFAI OQ2 DTA114EUBALREFUNLKSCKSSOPLSTLVINOUT0NWC5V8V5V8VC440470OPV1OPV2OPV3OPT3OPT2OPT1SIGBUSYAUXMCINMCOTPTTOPTTIMOWN CP2IC6LC73872MC670.1C810.1X3CR-5633.579545 MHzR461MR4710R47122kR47222kR47415kR4753.3kR476100kR40JPWR24JPW R47768kR4811.5kR4781.2kR4804.7k R47910kR47322kC6815pC6918pC5810.039C5820.1C5830.0068C5840.022C70.001C5700.1C420.0011 INPUT2 NC3 PD4 OSCO5 OSCI6 NC7 VSS 8LOAD9SD10ACK11STD12EST13NC14VDDR461100kDDSDDDSTDISCDTPDDDACBCLKR0∅REM5V456321NWCNWCCDECCOMMON LINEMAIN UNITVOLTAGE LINETX LINERX LINEExplanatory notes123456789101112131415301617181920212223242526272829LVIN8VCPORFFINRFOUT15VREFMIXIFBACPU55VNWCAFOVCC3.2 V1.5 V3.3 V3.3 V3.3 V12.3 MHz1.2 Vp-p3.3 V5.0 V3.3 V1.5 V3.2 V3.1 V15.3 MHz950 mVp-pAF ON 5.0 VOFF 0.0 V11-3 MAIN UNIT |
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