Icom IC-E91 Service Manual
Also see for IC-E91: Instruction manualInstruction manual
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SECTION 12 VOLTAGE DIAGRAMS12 - 1VOLTAGE LINEExplanatory notesTX LINERX LINECOMMON LINEJ400to MAINunit J702to LCDtoUT-121J1SP1+-10KR1144.7KR3200R661MR102XP1501Q106123 451KR3011KR60.22C651kR5530.001C107UNR9215JQ306SN74AHC1G08DCK3IC2123450.1C161kR2060.1C1SML-512MWDS205SML-512MWDS2092S6LMV324IPWIC3021234567 891011121314MRS14CP408#S18SML-A12MTDS2110.001C3470.001C3001C13110C121EP10024LC512T-I/SMIC511A0 2A1 3A2 4VSS5 SDA6 SCL7 WP8 VCC2SB1132Q2020.001C12015KR3231kR60410KR5021kR32110C311L100100U27R1120.1C314100C554390PC3420R31827R1130.001C100.22C6610KR5002SB1201Q1510.0047C550UNR9115JQ528S1610KR5061KR5812R15047KR4010.068C3321KR1160.1C326 39KR337MA2S111D110.001C1250.001C582SB1132Q1051KR1610.1C3170.01C3120.1C41KR70R347100KR3351KR31012KR11547KR551C130EP50560R2074.7KR5933KR300EP5212R1513.9KR3160.033C3432SD2216JQ501kR605MAX3221IPWRIC521READY 2C1+ 3V+ 4C1- 5C2+ 6C2- 7V- 8R1IN9 R1OUT10 INVALID11 T1IN12 FORCEON13 T1OUT14 GND15 VCC16 FORCEOFF47KR3222.2KR505100KR64POWERS10.001C32222C1051C2040.001C11SML-512MWDS2062.2MR3520.001C1101KR50.1C30347KR501MR5012.2C2050.001C1002.2KR34910KR3090.001C5560.1C3052.2C2080.0033C3270.001C2128.2KR55268KR3413.9KR54470R308SML-512MWDS203CP400INTSPGNDMA2S111D12[FRA][ITR][FRA], [UK][FRA], [EUR]0R35310C10322C1141KR1550.1C17*S810KR513.9KR34033C113330R200EP510.01C3010.001C320560R2080.1C123XC6371A551PRIC1011 VSS2 VOUT3 LX0.1C120.001C561C3301C2020.001C59MENUS40.1C101100KR4022SD2216JQ51VFOS92.2KR3070.0027C334J4010.47C1320.001C90.1C102J50DATA0R50447C5056S120.001C210150KR331330R158UNR9215JQ3094.7C21310R12SML-512MWDS2021MR3138.2R15347KR81.5KR157UNR9215JQ200470R33239KR34233R55010KR60MA2S111D10239KR33910R1520.056C3193.3KR3031C506MA2S111D521KR509HRYGCL-165HRDS2011C324MA2S077D103MA132WKD131.5KR317 100KR327EP101MA2S111D201100KR213560R20922C1150.047C3100.001C3441S50.001C400100R6222PC570.01C3281KR562.2KR3110.001C2140.1C2UNR9115JQ531KR1CD4066BPWRIC501 I/O12 O/I13 O/I24 I/O25 CONT26 CONT37 VSS 8I/O39O/I310O/I411I/O412CONT413CONT114VDD0.001C112SML-512MWDS2042SB1132Q100150KR3195S110.001C2150.1C5510.001C1274S100.001C211CALLS19100KR3430.001C6015PC1322PC15CD4066BPWRIC3041I/O1 2O/I1 3O/I2 4I/O2 5CONT2 6CONT3 7VSS8 I/O39 O/I310 O/I411 I/O412 CONT413 CONT114 VDD22C1161KR1540.047C3180.1C1042.2KR61CP401100KR101100KR159330R203M62364FPIC3031 VIN12 VOUT13 VOUT24 VIN25 VDD6 LD7 CLK8 DI9 VIN310 VOUT311 VOUT412 VIN4 13VIN514VOUT515VOUT616VIN617DO18VDAREF19RESET20GND21VIN722VOUT723VOUT824VIN8CP4033S71kR39S170.001C152EP531C509100KR3511kR40.001C153180PC3310.001C612KR140.001C128RB551VD101100KR1050.001C151330R21082KR334SB07-03CD1521kR60182KR3364.7KR20210KR10310KR338UNR9115JQ308UNR9215JQ305MA2S111D10015KR325UNR9115JQ3041MR5030.001C810C351SML-512MWDS2070.001C323UNR9215JQ3070S13XP1501Q153CP404MA6S121D1MA2S728D501MR100.001C209220KR3260.001C34912KR11220KR3142SB1462JQ3032SC4081Q30210C3460.22C632.2KR3450.1C3160.001C5100KR130.047C555560R204NTCG16R5222KR1600.1C1090.22C640.001C309330C6550.001C3450.1C621MR118BANDS3XP1501Q203123 450.018C3522.2KR1000.001C5047KR11747C320.001C308SN74AHC2G53HDCT3IC3011 COM2 INH3 GND4 GND 5A6Y17Y08VCC10PC1415KR324CP405330R201CP4021C353180R211SML-A12MTDS2101C3330.001C3501kR602XP1501Q101123 4510C3060.001C321EM-140MC300MAINS20.001C12210R551100R63MA2S111[FRA], [ITR]D150.001C3022.7KR333MA2S111D227R1110.001C5222C1112.2C2060.068C3391C2001.5KR350HD64F2238RTF13VIC11PE5/D5 2PE6/D6 3PE7/D7 4PD0/D8 5PD1/D9 6PD2/D10 7PD3/D11 8PD4/D12 9PD5/D13 10PD6/D14 11PD7/D15 12CVCC 13PC0/A0 14VSS 15PC1/A1 16PC2/A2 17PC3/A3 18PC4/A4 19PC5/A5 20PC6/A6 21PC7/A7 22PB0/A8/TIOCA3 23PB1/A9/TIOCB3 24PB2/A10/TIOCC3 25PB3/A11/TIOCD326 PB4/A12/TIOCA427 PB5/A13/TIOCB428 PB6/A14/TIOCA529 PB7/A15/TIOCB530 PA0/A1631 PA1/A17/TXD232 PA2/A18/RXD233 PA3/A19/SCK234 P10/TIOCA0/A2035 P11/TIOCB0/A2136 P12/TIOCC0/TCLK37 P13/TIOCD0/TCLK38 P14/TIOCA1/IRQ139 P15/TIOCB1/TCLK40 P16/TIOCA2/IRQ141 P17/TIOCB2/TCLK42 AVSS43 P97/DA144 P96/DA045 P47/AN746 P46/AN647 P45/AN548 P44/AN449 P43/AN350 P42/AN251 P41/AN152 P40/AN053 VREF54 AVCC55 MD056 MD157 OSC258 OSC159 RES60 NMI61 STBY62 VCC63 XTAL64 VSS65 EXTAL66 FWE67 MD268 PF769 PF6/AS70 PF5/RD71 PF4/HWR72 PF3/LWR/ADTRG73 PF2/WAIT74 PF1/BACK/BUZZ75 PF0/BREQ/IRQ276P30/TXD0 77P31/RXD0 78P32/SCK0/SDA1 79P33/SCK0/SCL1 80P34/RXD1/SDA0 81P35/SCK1/SCL0 82P36 83P77/TXD3 84P76/RXD3 85P75/TMO3/SCK3 86P74/TMO2/MRES 87P73/TMO1/CS7 88P72/TMO0/CS6 89P71/TMRI23 90P70/TMRI01 91PG0/IRQ6 92PG1/CS3/IRQ7 93PG2/CS2 94PG3/CS1 95PG4/CS0 96PE0/D0 97PE1/D1 98PE2/D2 99PE3/D3 100PE4/D40.001C150470KR344MA2S728D530.001C53CP406CP40710KR507220KR312UNR9115JQ3000.1C31347KR530.01C335CR-774X1AN6123MSIC3001 VCC2 DET 3INPUT4GND5OUTPUT1kR205R1150H022DIC1001 VOUT2 GND3 CD 4VDET5VDD100R3020.001C61UNR9215JQ2010.033C34022C10810R92.2C2070.001C540.001C3412SA1362Q150XC6202P502PRIC560I OG1kR10410C3380.1C5101C2011C1260.001C551KR1561KR247KR305100KR32810KR5081kR6031kR65100R3480.01C10647KR57NJM2070MIC550112233445566778822KR1060.001C51180R212MA133D15018KR346AVR-M1005C080MTD3000.001C119UNR9211JQ1521C3487S151C2030.001C329UNR9215JQ30122C3360.001C71.5C553MA2S111D3SML-512MWDS2080.1C3100KR304MA2S111D51I1KS2AMBESTBTXCKPTTAMBEEPRI0KS1TXDTKS3KS0RXDTMICCKS3KR4RXCKKR3CLOUTKR2DIUDKR2CLINAMBECLKDATAVOLDCELESIOACQBLEDDTCSCLSFTPCONKR4PTTECKPCONDVCDTMFCPUHVCTCOUTCHGHDTMFKS2CHGCKR3DASTB2CKAMBETXDKR0MUTEIOSTB1AMBERESI3LIGHTDTCSI2KR1AMBERXDPOWERDVCTXCKTXDTRXCKRXDTDCELAMBECLKAMBERESAMBESTBAMBEEPRRESETRESETSQLCHGHCHGCLIGHTCTCOUTEXTMICINTPTTIOSTB2DICKBNOISANOISECKESIODASTB1BPLSTBUNLKBPSPLLDATAIOSTB3AFONAPLLSTBMUTETEMPBRSSILCDRESLCDRSLCDCKLCDCSLCDDTD_ASVINBATTD_ASTEMPBLEDTX232TTEMPBEEPBEEPD_ASTXCMICCCKDASTB2DATATXCCPUHVBPLSTBBPSIOSTB2IOSTB3BTONEAFOCLONEEXTMICINTSPTXC TXC+5.5VBNOISANOISDAFOUTVOLDICKDIUDBRSSICHG CHGMOD MODREFMOD REFMODS-LVSQLIOSTB1UNLKTTEMPATONEBTONEINTPTTAMODIN+3V+3VDMODVINATONEBATTS-LVBTONEKR1KR0RX232RX232AFONC5VAMODINDAFOUTAAFAFOINTSPAAFBAF BAFC5VDMODTXCCKDATACKDATAPLLDATAAPLLSTBDASTB1BPLSTBBPSIOSTB2IOSTB3CLONEEXTMIC+5.5VBNOISANOISDAFOUTVOLDICKDIUDBRSSIS-LVSQLIOSTB1UNLKTTEMPATONEBTONEINTPTTPLLDATAAPLLSTBDASTB1+5.5VCVCCMD2VCC VCCFLASHVACQMD2FLASHVAMBETXDAMBERXDRESETCLONEKS0HVHVI1I0KS1I3I2LCDDTLCDCKLCDRSLCDRESLCDCSLCDDTLCDCKLCDRSLCDRESLCDCS+3VLOGIC UNIT123 45J200TX: 3.35VRX: 0VTX: 0.07VDV RX: 0.05VTX: 3.16VFM RX: 3.13VTX: 1.06VRX: 0V1.60Vp-pOFF: 0VCHG ON: 9.26V5.53V5.07V7.39V OFF: 6.07VMUTE ON: 0VOFF: 0VLED ON: 3.22V3.29V3.37V7.34V3.35VDTCS ON/OFF: 3.16V12-1 LOGIC UNIT |
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